From ab660ae7a8cf65e0f1c542f312bec1aed5cbbfd5 Mon Sep 17 00:00:00 2001
From: sfja <sfja2004@gmail.com>
Date: Tue, 23 Sep 2025 01:07:41 +0200
Subject: [PATCH] self hosted

---
 compile.phi    |  288 +++++----
 make_stage1.sh |    0
 make_stage2.sh |    0
 phi.js         |   66 +-
 runtime.js     |   36 +-
 stage1.js      | 1616 +++++++++++++++++++++++++-----------------------
 stage2.js      | 1229 +++++++++++++++++++++++++++++++++++-
 7 files changed, 2324 insertions(+), 911 deletions(-)
 mode change 100644 => 100755 make_stage1.sh
 mode change 100644 => 100755 make_stage2.sh

diff --git a/compile.phi b/compile.phi
index d8716f5..7519742 100644
--- a/compile.phi
+++ b/compile.phi
@@ -1,17 +1,52 @@
 
+(fn dbg (msg) (do
+    (if is_phi_compiler (do
+        (call println "dbg: %" msg)
+    ))
+))
+
 (fn Emitter (ast filename) (do
     (let output ())
 
     (let (enter_scope leave_scope define_sym get_sym print_syms) (call Syms))
 
     (let (let_node_reg_count let_node_reg_increment) (call Counter))
+    (let (sym_id_count sym_id_increment) (call Counter))
+
+    (let builtin_syms (
+        ("format" "builtinFormat")
+        ("print" "builtinPrint")
+        ("println" "builtinPrintln")
+        ("panic" "builtinPanic")
+        ("read_text_file" "builtinReadTextFile")
+        ("write_text_file" "builtinWriteTextFile")
+        ("push" "builtinPush")
+        ("at" "builtinAt")
+        ("set" "builtinSet")
+        ("len" "builtinLen")
+        ("string_to_int" "builtinStringToInt")
+        ("char_code" "builtinCharCode")
+        ("strings_join" "builtinStringsJoin")
+        ("get_args" "builtinGetArgs")
+    ))
 
     (fn generate () (do
         (call emit "#!/usr/bin/env node\n")
-        (call emit "import { Runtime } from \"./runtime.js\"\n")
-        (call emit "const runtime = new Runtime(\"")
+        (call emit "import { Runtime } from \"./runtime.js\";\n")
+        (call emit "const runtime = new Runtime({ filename: \"")
         (call emit filename)
-        (call emit "\")\n")
+        (call emit "\" });\n")
+
+        (for (ident builtin_id) builtin_syms (do
+            (call define_builtin ident builtin_id)
+        ))
+
+        (let is_phi_compiler_sym_id (call define_let "is_phi_compiler" 0))
+        (call emit (call format
+            "let _is_phi_compiler% = { type: \"bool\", value: true };\n"
+            is_phi_compiler_sym_id
+        ))
+
         (call discover_syms ast)
         (call emit_exprs ast)
         (return (call strings_join output))
@@ -32,8 +67,8 @@
             (if (== (call len s) 0) (return))
             (let ((_ _ id)) s)
             (if (== id "fn") (do
-                (let (_ (_ _ name) (_ _ params) body) s)
-                (call define_sym name ("fn" name line))
+                (let (_ (_ _ ident) (_ _ params) body) s)
+                (call define_fn ident line)
             ))
         ))
     ))
@@ -42,10 +77,10 @@
         (let (ty line) expr)
         (if (== ty "list") (do
             (call emit_list expr)
-        ) (if (== ty "int") (
+        ) (if (== ty "int") (do
             (let (_ _ value) expr)
             (call emit (call format "({ type: \"int\", value: % })" value))
-        ) (if (== ty "string") (
+        ) (if (== ty "string") (do
             (let (_ _ value) expr)
             (call emit (call format "({ type: \"string\", value: \"%\" })" (call string_escape value)))
         ) (if (== ty "ident") (do
@@ -68,16 +103,16 @@
                 (call panic "undefined symbol '%' on line %" value line)
             ))
 
-            (let (sym_ty) sym)
+            (let (sym_id sym_ty) sym)
             (if (== sym_ty "builtin") (do
-                (let (_ id) sym)
+                (let (_ _ id) sym)
                 (call emit (call format "((...args) => runtime.%(...args))" id))
             ) (if (== sym_ty "fn") (do
-                (call emit (call format "_%" value))
-            ) (if (== sym_ty "param") (do
-                (call emit (call format "_%" value))
-            ) (if (== sym_ty "let") (do
-                (call emit (call format "_%" value))
+                (call emit (call format "_%%" value sym_id))
+            ) (if (== sym_ty "param") (do                 
+                (call emit (call format "_%%" value sym_id))
+            ) (if (== sym_ty "let") (do                   
+                (call emit (call format "_%%" value sym_id))
             ) (do
                 (call panic "not implemented '%'" sym_ty)
             )))))
@@ -94,30 +129,33 @@
         ))
         (let ((id_ty _ id)) s)
         (if (!= id_ty "ident") (do
-            (call emit "({ type: \"list\", values: [] })")
+            (call emit_list_literal s)
             (return)
         ))
         (if (== id "fn") (do
-            (let (_ (_ _ name) (_ _ params) body) s)
-            (call emit (call format "function _%(" name))
+            (let (_ (_ _ ident) (_ _ params) body) s)
+
+            (let sym (call get_sym ident))
+            (let (sym_id) sym)
+
+            (call emit (call format "function _%%(" ident sym_id))
 
             (call enter_scope)
 
             (let first true)
-            (for (_ _ name) params (do
+            (for (_ _ ident) params (do
                 (if (not first) (do
                     (call emit ", ")
                 ))
                 (= first false)
 
-                (call emit (call format "_%" name))
-
-                (call define_sym name ("param" name line))
+                (let sym_id (call define_param ident line))
+                (call emit (call format "_%%" ident sym_id))
             ))
 
 
-            (call emit (call format ") {\n" name))
-            (call emit (call format "runtime.pushCall(\"%\");\n" name))
+            (call emit ") {\n")
+            (call emit (call format "runtime.pushCall(\"%\");\n" ident))
 
             (call emit_expr body)
             (call emit ";\nruntime.popCall();\nreturn { type: \"null\" };\n}")
@@ -127,7 +165,7 @@
             (let (_ pat expr) s)
             (let reg (call let_node_reg_count))
             (call let_node_reg_increment)
-            (call emit (call format "let r_% = " reg))
+            (call emit (call format "const r_% = " reg))
             (call emit_expr expr)
             (call emit_let_node pat reg)
         ) (if (== id "do") (do
@@ -137,14 +175,22 @@
             (call leave_scope)
         ) (if (== id "for") (do
             (let (_ pat expr body) s)
-            (call enter_scope)
-            (call emit "for (let ")
-            (call emit_pat pat)
-            (call emit " of ")
+
+            (let reg (call let_node_reg_count))
+            (call let_node_reg_increment)
+            (call emit (call format "for (const r_% of " reg))
             (call emit_expr expr)
-            (call emit ".values) {\n")
+            (call emit ".values) {")
+
+            (call enter_scope)
+            (call emit_let_node pat reg)
+            (call enter_scope)
+
+            (call emit ";\n")
             (call emit_expr body)
             (call emit "}")
+
+            (call leave_scope)
             (call leave_scope)
         ) (if (== id "loop") (do
             (let (_ body) s)
@@ -153,9 +199,9 @@
             (call emit "}")
         ) (if (== id "if") (do
             (let (_ cond truthy falsy) s)
-            (call emit "if (")
+            (call emit "if (runtime.truthy(")
             (call emit_expr cond)
-            (call emit ") {\n")
+            (call emit ")) {\n")
             (call emit_expr truthy)
             (call emit "}")
             (if (!= falsy null) (do
@@ -205,17 +251,17 @@
         ) (if (== id "or") (do
             (let (_ left right) s)
             (call emit (call format "(runtime.setLine(%)" line))
-            (call emit ", { type: \"bool\", value: this.runtime.truthy(")
+            (call emit ", { type: \"bool\", value: runtime.truthy(")
             (call emit_expr left)
-            (call emit ") || this.runtime.falsy(")
+            (call emit ") || runtime.truthy(")
             (call emit_expr right)
             (call emit ") })")
         ) (if (== id "and") (do
             (let (_ left right) s)
             (call emit (call format "(runtime.setLine(%)" line))
-            (call emit ", { type: \"bool\", value: this.runtime.truthy(")
+            (call emit ", { type: \"bool\", value: runtime.truthy(")
             (call emit_expr left)
-            (call emit ") && this.runtime.falsy(")
+            (call emit ") && runtime.truthy(")
             (call emit_expr right)
             (call emit ") })")
         ) (if (== id "==") (do
@@ -240,20 +286,24 @@
             (call emit_expr expr)
             (call emit ")")
         ) (do
-            (call emit "({ type: \"list\", values: [")
-            (let first true)
-            (for e s (do
-                (if (not first) (do
-                    (call emit ", ")
-                ))
-                (= first false)
-
-                (call emit_expr e)
-            ))
-            (call emit "] })")
+            (call emit_list_literal s)
         ))))))))))))))))))))))))
     ))
 
+    (fn emit_list_literal (s) (do
+        (call emit "({ type: \"list\", values: [")
+        (let first true)
+        (for e s (do
+            (if (not first) (do
+                (call emit ", ")
+            ))
+            (= first false)
+
+            (call emit_expr e)
+        ))
+        (call emit "] })")
+    ))
+
     (fn emit_let_node (pat base_reg) (do
         (let (pat_ty line) pat)
         (if (== pat_ty "ident") (do
@@ -261,16 +311,35 @@
 
             (if (== ident "_") (return))
 
-            (call emit (call format ";\nlet _% = r_%" ident base_reg))
-            (call define_sym ident ("let" line))
+            (let sym_id (call define_let ident line))
+            (call emit (call format ";\nlet _%% = r_%" ident sym_id base_reg))
         ) (if (== pat_ty "list") (do
             (let (_ _ pats) pat)
 
+            //(call emit (call format
+            //    (+ ";\nif (r_%.type !== \"list\") {\nruntime.setLine(%);"
+            //        "\nruntime.panic(\"expected list\");\n}\n")
+            //    base_reg
+            //    line
+            //))
+            //(call emit (call format
+            //    (+ ";\nif (% > r_%.values.length) {\nruntime.setLine(%);\nruntime.panic"
+            //        "(`expected % elements, got ${r_%.values.length}`);\n}\n")
+            //    (call len pats)
+            //    base_reg
+            //    line
+            //    (call len pats)
+            //    base_reg
+            //))
+
             (let i 0)
             (for pat pats (do
                 (let reg (call let_node_reg_count))
                 (call let_node_reg_increment)
-                (call emit (call format ";\nlet r_% = r_%.values[%]" reg base_reg i))
+                (call emit (call format
+                    ";\nconst r_% = r_%.values[%] ?? { type: \"null\"}"
+                    reg base_reg i
+                ))
                 (call emit_let_node pat reg)
                 (+= i 1)
             ))
@@ -298,59 +367,64 @@
         (if (== sym null) (do
             (call panic "could not find symbol '%' on line %" ident line)
         ))
-        (let (sym_type sym_ident _) sym)
+        (let (sym_id sym_type sym_ident _) sym)
         (if (== sym_type "let") (do
-            (call emit (call format "(_% = runtime.assignValue(" sym_ident))
+            (call emit (call format "(_%% = " sym_ident sym_id))
             (if (== id "=") (do
                 (call emit_expr expr)
             ) (if (== id "+") (do
-                (call emit (call format "runtime.opAdd(_%, " sym_ident))
+                (call emit (call format "runtime.opAdd(_%%, " sym_ident sym_id))
                 (call emit_expr expr)
                 (call emit ")")
             ) (if (== id "-") (do
-                (call emit (call format "runtime.opSub(_%, " sym_ident))
+                (call emit (call format "runtime.opSub(_%%, " sym_ident sym_id))
                 (call emit_expr expr)
                 (call emit ")")
             ) (do
                 (call panic "not implemented")
             ))))
-            (call emit "))")
+            (call emit ")")
         ) (do
             (call panic "cannot assign to symbol '%' on line %" sym_ident line)
         ))
     ))
 
-    (fn emit_pat (pat) (do
-        (let (ty) pat)
-        (if (== ty "ident") (do
-            (let (_ line name) pat)
-            (if (== name "_") (do
-                (return)
-            ))
-            (call emit (call format "_%" name))
-            (call define_sym name ("let" name line))
-        ) (if (== ty "list") (do
-            (let (_ _ pats) pat)
-            (call emit "[")
-            (let first true)
-            (for pat pats (do
-                (if (not first) (do
-                    (call emit ", ")
-                ))
-                (= first false)
-
-                (call emit_pat pat)
-            ))
-            (call emit "]")
-        ) (do
-            (call panic "cannot assign to '%'" pat)
-        )))
-    ))
-
     (fn emit (str) (do
         (call push output str)
     ))
 
+    (fn define_builtin (ident builtin_id) (do
+        (let sym_id (call sym_id_count))
+        (call sym_id_increment)
+
+        (call define_sym ident (sym_id "builtin" builtin_id))
+        (return sym_id)
+    ))
+
+    (fn define_fn (ident line) (do
+        (let sym_id (call sym_id_count))
+        (call sym_id_increment)
+
+        (call define_sym ident (sym_id "fn" ident line))
+        (return sym_id)
+    ))
+
+    (fn define_param (ident line) (do
+        (let sym_id (call sym_id_count))
+        (call sym_id_increment)
+
+        (call define_sym ident (sym_id "param" ident line))
+        (return sym_id)
+    ))
+
+    (fn define_let (ident line) (do
+        (let sym_id (call sym_id_count))
+        (call sym_id_increment)
+
+        (call define_sym ident (sym_id "let" ident line))
+        (return sym_id)
+    ))
+
     (return (generate))
 ))
 
@@ -369,22 +443,7 @@
 ))
 
 (fn Syms () (do
-    (let syms (null (
-        ("format" ("builtin" "builtinFormat"))
-        ("print" ("builtin" "builtinPrint"))
-        ("println" ("builtin" "builtinPrintln"))
-        ("panic" ("builtin" "builtinPanic"))
-        ("read_text_file" ("builtin" "builtinReadTextFile"))
-        ("write_text_file" ("builtin" "builtinWriteTextFile"))
-        ("push" ("builtin" "builtinPush"))
-        ("at" ("builtin" "builtinAt"))
-        ("set" ("builtin" "builtinSet"))
-        ("len" ("builtin" "builtinLen"))
-        ("string_to_int" ("builtin" "builtinStringToInt"))
-        ("char_code" ("builtin" "builtinCharCode"))
-        ("strings_join" ("builtin" "builtinStringsJoin"))
-        ("get_args" ("builtin" "builtinGetArgs"))
-    )))
+    (let syms (null ()))
 
     (fn enter_scope () (do
         (= syms (syms ()))
@@ -396,18 +455,18 @@
     ))
 
     (fn define (ident sym) (do
-        (let (_ syms) syms)
+        (let (_ map) syms)
         (let i 0)
         (loop (do
-            (if (>= i (call len syms)) (break))
-            (let (s_ident _) (call at syms i))
+            (if (>= i (call len map)) (break))
+            (let (s_ident _) (call at map i))
             (if (== ident s_ident) (do
-                (call set syms i (ident sym))
+                (call set map i (ident sym))
                 (return)
             ))
             (+= i 1)
         ))
-        (call push syms (ident sym))
+        (call push map (ident sym))
     ))
 
     (fn find_sym (syms ident) (do
@@ -706,25 +765,30 @@
     (return elems)
 ))
 
-(let silent true)
+(let silent false)
 
 (let (input_filename output_filename) (call get_args))
 
-(if (not silent) (call println "reading file..."))
+(if (not silent) (call println "reading file '%'..." input_filename))
 (let text (call read_text_file input_filename))
 
-(call println "=== text ===")
+//(call println "=== text ===")
 // (call println text)
-(call println (call len text))
+//(call println (call len text))
 
 (if (not silent) (call println "tokenizing..."))
 (let tokens (call tokenize text))
 
-(call println "=== tokens ===")
-// (for (tok line value) tokens (do
-//    (call println "%\t%\t%" line tok (if (!= value null) value ""))
-// ))
-(call println (call len tokens))
+//(call println "=== tokens ===")
+//(for elem tokens (do
+//    (let (tok line value) elem)
+//    (if (!= value null) (do
+//        (call println "%\t%\t%" line tok value)
+//    ) (do
+//        (call println "%\t%" line tok)
+//    ))
+//))
+//(call println (call len tokens))
 
 (if (not silent) (call println "parsing..."))
 (let parser (call Parser tokens))
@@ -744,7 +808,7 @@
 // (call println "=== js ===")
 // (call println js_code)
 
-(if (not silent) (call println "writing file..."))
+(if (not silent) (call println "writing file '%'..." output_filename))
 (call write_text_file output_filename js_code)
 
 
diff --git a/make_stage1.sh b/make_stage1.sh
old mode 100644
new mode 100755
diff --git a/make_stage2.sh b/make_stage2.sh
old mode 100644
new mode 100755
diff --git a/phi.js b/phi.js
index 7e2f576..1635f17 100644
--- a/phi.js
+++ b/phi.js
@@ -46,7 +46,7 @@ class Evaluator {
         }
 
         this.currentLine = expr.line;
-        this.runtime.setLine(expr.line)
+        this.runtime.setLine(expr.line);
         if (expr.type === "list") {
             return this.evalList(expr, expr.line);
         } else if (expr.type === "int") {
@@ -122,20 +122,29 @@ class Evaluator {
                 return { type: "value", value: { type: "bool", value: true } };
             } else {
                 const right = this.evalToValue(s[2]);
-                return { type: "value", value: { type: "bool", value: this.runtime.truthy(right) } };
+                return {
+                    type: "value",
+                    value: { type: "bool", value: this.runtime.truthy(right) },
+                };
             }
         } else if (id === "and") {
             const left = this.evalToValue(s[1]);
             if (this.runtime.truthy(left)) {
                 const right = this.evalToValue(s[2]);
-                return { type: "value", value: { type: "bool", value: this.runtime.truthy(right) } };
+                return {
+                    type: "value",
+                    value: { type: "bool", value: this.runtime.truthy(right) },
+                };
             } else {
                 return { type: "value", value: { type: "bool", value: false } };
             }
         } else if (id in this.artithmeticOps) {
             const left = this.evalToValue(s[1]);
             const right = this.evalToValue(s[2]);
-            return { type: "value", value: this.artithmeticOps[id](left, right) };
+            return {
+                type: "value",
+                value: this.artithmeticOps[id](left, right),
+            };
         } else if (id === "==") {
             const left = this.evalToValue(s[1]);
             const right = this.evalToValue(s[2]);
@@ -155,7 +164,11 @@ class Evaluator {
             const right = this.evalToValue(s[2]);
             return {
                 type: "value",
-                value: this.runtime.comparisonOperation(left, right, this.comparisonOps[id]),
+                value: this.runtime.comparisonOperation(
+                    left,
+                    right,
+                    this.comparisonOps[id],
+                ),
             };
         } else if (id in this.assignOps) {
             return this.evalAssign(expr);
@@ -230,38 +243,43 @@ class Evaluator {
             );
         }
 
-        const outerSyms = this.syms;
-        this.syms = { parent: outerSyms, map: new Map() };
-
         for (let i = 0; i < value.values.length; ++i) {
+            this.enterScope();
             this.assignPattern(s[1], value.values[i]);
+            this.enterScope();
+
             const result = this.eval(s[3]);
+
+            this.leaveScope();
+            this.leaveScope();
+
             if (result.type === "break") {
                 return { type: "value", value: result.value };
             } else if (result.type !== "value") {
                 return result;
             }
         }
-        this.syms = outerSyms;
         return { type: "value", value: { type: "null" } };
     }
 
     evalDo(expr) {
         const s = expr.values;
-        const outerSyms = this.syms;
-        this.syms = { parent: outerSyms, map: new Map() };
+        this.enterScope();
 
         let lastValue = { type: "null" };
 
         for (const expr of s.slice(1)) {
             const result = this.eval(expr);
+            if (!result) {
+                console.log({ expr, result });
+            }
             if (result.type !== "value") {
                 return result;
             }
             lastValue = result.value;
         }
 
-        this.syms = outerSyms;
+        this.leaveScope();
         return { type: "value", value: lastValue };
     }
 
@@ -291,8 +309,10 @@ class Evaluator {
             this.syms.map.set(fnValue.params[i], args[i]);
         }
 
+        this.enterScope();
         let returnValue = { type: "null" };
         const result = this.eval(fnValue.body);
+        this.leaveScope();
 
         if (result.type === "value" || result.type === "return") {
             returnValue = result.value;
@@ -337,6 +357,11 @@ class Evaluator {
             if (pattern.value === "_") {
                 return;
             }
+            if (this.syms.map.has(pattern.value)) {
+                throw new Error(
+                    `redeclaration of local symbol '${pattern.value}' on line ${pattern.line}`,
+                );
+            }
             this.syms.map.set(pattern.value, {
                 type: "local",
                 line: pattern.line,
@@ -344,7 +369,7 @@ class Evaluator {
             });
         } else if (pattern.type === "list") {
             if (value.type !== "list") {
-                this.panic(`expected list`);
+                this.panic(`expected list on line ${pattern.line}`);
             }
             for (const [i, p] of pattern.values.entries()) {
                 this.assignPattern(p, value.values[i] ?? { type: "null" });
@@ -369,6 +394,14 @@ class Evaluator {
         this.runtime.panic(msg);
     }
 
+    enterScope() {
+        this.syms = { parent: this.syms, map: new Map() };
+    }
+
+    leaveScope() {
+        this.syms = this.syms.parent;
+    }
+
     artithmeticOps = {
         "+": (left, right) => this.runtime.opAdd(left, right),
         "-": (left, right) => this.runtime.opSub(left, right),
@@ -398,8 +431,10 @@ class Evaluator {
         "print": (...args) => this.runtime.builtinPrint(...args),
         "println": (...args) => this.runtime.builtinPrintln(...args),
         "panic": (...args) => this.runtime.builtinPanic(...args),
-        "read_text_file": (...args) => this.runtime.builtinReadTextFile(...args),
-        "write_text_file": (...args) => this.runtime.builtinWriteTextFile(...args),
+        "read_text_file": (...args) =>
+            this.runtime.builtinReadTextFile(...args),
+        "write_text_file": (...args) =>
+            this.runtime.builtinWriteTextFile(...args),
         "push": (...args) => this.runtime.builtinPush(...args),
         "at": (...args) => this.runtime.builtinAt(...args),
         "set": (...args) => this.runtime.builtinSet(...args),
@@ -414,6 +449,7 @@ class Evaluator {
         "null": { type: "null" },
         "false": { type: "bool", value: false },
         "true": { type: "bool", value: true },
+        "is_phi_compiler": { type: "bool", value: false },
     };
 
     builtins = [
diff --git a/runtime.js b/runtime.js
index 35f9485..1dd7c24 100644
--- a/runtime.js
+++ b/runtime.js
@@ -84,11 +84,11 @@ export class Runtime {
     }
 
     opEq(left, right) {
-        return { type: "bool", value: this.equalityOperation(left, right) }
+        return { type: "bool", value: this.equalityOperation(left, right) };
     }
 
     opNe(left, right) {
-        return { type: "bool", value: !this.equalityOperation(left, right) }
+        return { type: "bool", value: !this.equalityOperation(left, right) };
     }
 
     opNot(expr) {
@@ -105,23 +105,31 @@ export class Runtime {
         return { type: "bool", value: action(left.value, right.value) };
     }
 
-    opLt(left, right) { return this.comparisonOperation(right, left, (l, r) => l < r); }
-    opGt(left, right) { return this.comparisonOperation(right, left, (l, r) => l > r); }
-    opLte(left, right) { return this.comparisonOperation(right, left, (l, r) => l <= r); }
-    opGte(left, right) { return this.comparisonOperation(right, left, (l, r) => l >= r); }
+    opLt(left, right) {
+        return this.comparisonOperation(left, right, (l, r) => l < r);
+    }
+    opGt(left, right) {
+        return this.comparisonOperation(left, right, (l, r) => l > r);
+    }
+    opLte(left, right) {
+        return this.comparisonOperation(left, right, (l, r) => l <= r);
+    }
+    opGte(left, right) {
+        return this.comparisonOperation(left, right, (l, r) => l >= r);
+    }
 
     opAdd(left, right) {
         if (left.type === "int" && right.type === "int") {
-            return { type: "int", value: left.value + right.value }
+            return { type: "int", value: left.value + right.value };
         } else if (left.type === "string" && right.type === "string") {
-            return { type: "string", value: left.value + right.value }
+            return { type: "string", value: left.value + right.value };
         } else {
             this.panic(`cannot apply '+' on ${left.type} and ${right.type}`);
         }
     }
     opSub(left, right) {
         if (left.type === "int" && right.type === "int") {
-            return { type: "int", value: left.value + right.value }
+            return { type: "int", value: left.value - right.value };
         } else {
             this.panic(`cannot apply '-' on ${left.type} and ${right.type}`);
         }
@@ -226,8 +234,9 @@ export class Runtime {
         } else if (value.type === "string") {
             return `${value.value}`;
         } else if (value.type === "list") {
-            return `(${value.values.map((v) => Runtime.valueToString(v)).join(" ")
-                })`;
+            return `(${
+                value.values.map((v) => Runtime.valueToString(v)).join(" ")
+            })`;
         } else {
             throw new Error(`unknown value type ${value.type}`);
         }
@@ -243,8 +252,9 @@ export class Runtime {
         } else if (value.type === "string") {
             return `"${value.value}"`;
         } else if (value.type === "list") {
-            return `(${value.values.map((v) => Runtime.valueToString(v)).join(" ")
-                })`;
+            return `(${
+                value.values.map((v) => Runtime.valueToString(v)).join(" ")
+            })`;
         } else {
             throw new Error(`unknown value type ${value.type}`);
         }
diff --git a/stage1.js b/stage1.js
index 6ec5240..be32485 100644
--- a/stage1.js
+++ b/stage1.js
@@ -1,694 +1,771 @@
 #!/usr/bin/env node
-import { Runtime } from "./runtime.js"
-const runtime = new Runtime("compile.phi")
-function _Emitter(_ast, _filename) {
+import { Runtime } from "./runtime.js";
+const runtime = new Runtime({ filename: "compile.phi" });
+let _is_phi_compiler14 = { type: "bool", value: true };
+function _dbg15(_msg27) {
+runtime.pushCall("dbg");
+if (runtime.truthy(_is_phi_compiler14)) {
+(runtime.setLine(4), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "dbg: %" }), _msg27));
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _Emitter16(_ast28, _filename29) {
 runtime.pushCall("Emitter");
-let r_0 = ({ type: "list", values: [] });
-let _output = r_0;
-let r_1 = (runtime.setLine(5), _Syms());
-let r_2 = r_1.values[0];
-let _enter_scope = r_2;
-let r_3 = r_1.values[1];
-let _leave_scope = r_3;
-let r_4 = r_1.values[2];
-let _define_sym = r_4;
-let r_5 = r_1.values[3];
-let _get_sym = r_5;
-let r_6 = r_1.values[4];
-let _print_syms = r_6;
-let r_7 = (runtime.setLine(7), _Counter());
-let r_8 = r_7.values[0];
-let _let_node_reg_count = r_8;
-let r_9 = r_7.values[1];
-let _let_node_reg_increment = r_9;
-function _generate() {
+const r_0 = ({ type: "list", values: [] });
+let _output44 = r_0;
+const r_1 = (runtime.setLine(11), _Syms18());
+const r_2 = r_1.values[0] ?? { type: "null"};
+let _enter_scope45 = r_2;
+const r_3 = r_1.values[1] ?? { type: "null"};
+let _leave_scope46 = r_3;
+const r_4 = r_1.values[2] ?? { type: "null"};
+let _define_sym47 = r_4;
+const r_5 = r_1.values[3] ?? { type: "null"};
+let _get_sym48 = r_5;
+const r_6 = r_1.values[4] ?? { type: "null"};
+let _print_syms49 = r_6;
+const r_7 = (runtime.setLine(13), _Counter17());
+const r_8 = r_7.values[0] ?? { type: "null"};
+let _let_node_reg_count50 = r_8;
+const r_9 = r_7.values[1] ?? { type: "null"};
+let _let_node_reg_increment51 = r_9;
+const r_10 = (runtime.setLine(14), _Counter17());
+const r_11 = r_10.values[0] ?? { type: "null"};
+let _sym_id_count52 = r_11;
+const r_12 = r_10.values[1] ?? { type: "null"};
+let _sym_id_increment53 = r_12;
+const r_13 = ({ type: "list", values: [({ type: "list", values: [({ type: "string", value: "format" }), ({ type: "string", value: "builtinFormat" })] }), ({ type: "list", values: [({ type: "string", value: "print" }), ({ type: "string", value: "builtinPrint" })] }), ({ type: "list", values: [({ type: "string", value: "println" }), ({ type: "string", value: "builtinPrintln" })] }), ({ type: "list", values: [({ type: "string", value: "panic" }), ({ type: "string", value: "builtinPanic" })] }), ({ type: "list", values: [({ type: "string", value: "read_text_file" }), ({ type: "string", value: "builtinReadTextFile" })] }), ({ type: "list", values: [({ type: "string", value: "write_text_file" }), ({ type: "string", value: "builtinWriteTextFile" })] }), ({ type: "list", values: [({ type: "string", value: "push" }), ({ type: "string", value: "builtinPush" })] }), ({ type: "list", values: [({ type: "string", value: "at" }), ({ type: "string", value: "builtinAt" })] }), ({ type: "list", values: [({ type: "string", value: "set" }), ({ type: "string", value: "builtinSet" })] }), ({ type: "list", values: [({ type: "string", value: "len" }), ({ type: "string", value: "builtinLen" })] }), ({ type: "list", values: [({ type: "string", value: "string_to_int" }), ({ type: "string", value: "builtinStringToInt" })] }), ({ type: "list", values: [({ type: "string", value: "char_code" }), ({ type: "string", value: "builtinCharCode" })] }), ({ type: "list", values: [({ type: "string", value: "strings_join" }), ({ type: "string", value: "builtinStringsJoin" })] }), ({ type: "list", values: [({ type: "string", value: "get_args" }), ({ type: "string", value: "builtinGetArgs" })] })] });
+let _builtin_syms54 = r_13;
+function _generate30() {
 runtime.pushCall("generate");
-(runtime.setLine(10), _emit(({ type: "string", value: "#!/usr/bin/env node\n" })));
-(runtime.setLine(11), _emit(({ type: "string", value: "import { Runtime } from \"./runtime.js\"\n" })));
-(runtime.setLine(12), _emit(({ type: "string", value: "const runtime = new Runtime(\"" })));
-(runtime.setLine(13), _emit(_filename));
-(runtime.setLine(14), _emit(({ type: "string", value: "\")\n" })));
-(runtime.setLine(15), _discover_syms(_ast));
-(runtime.setLine(16), _emit_exprs(_ast));
+(runtime.setLine(34), _emit39(({ type: "string", value: "#!/usr/bin/env node\n" })));
+(runtime.setLine(35), _emit39(({ type: "string", value: "import { Runtime } from \"./runtime.js\";\n" })));
+(runtime.setLine(36), _emit39(({ type: "string", value: "const runtime = new Runtime({ filename: \"" })));
+(runtime.setLine(37), _emit39(_filename29));
+(runtime.setLine(38), _emit39(({ type: "string", value: "\" });\n" })));
+for (const r_14 of _builtin_syms54.values) {;
+const r_15 = r_14.values[0] ?? { type: "null"};
+let _ident55 = r_15;
+const r_16 = r_14.values[1] ?? { type: "null"};
+let _builtin_id56 = r_16;
+(runtime.setLine(41), _define_builtin40(_ident55, _builtin_id56));
+};
+const r_17 = (runtime.setLine(44), _define_let43(({ type: "string", value: "is_phi_compiler" }), ({ type: "int", value: 0 })));
+let _is_phi_compiler_sym_id57 = r_17;
+(runtime.setLine(45), _emit39((runtime.setLine(45), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "let _is_phi_compiler% = { type: \"bool\", value: true };\n" }), _is_phi_compiler_sym_id57))));
+(runtime.setLine(50), _discover_syms32(_ast28));
+(runtime.setLine(51), _emit_exprs31(_ast28));
 runtime.popCall();
-return (runtime.setLine(17), ((...args) => runtime.builtinStringsJoin(...args))(_output));
+return (runtime.setLine(52), ((...args) => runtime.builtinStringsJoin(...args))(_output44));
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_exprs(_exprs) {
+function _emit_exprs31(_exprs58) {
 runtime.pushCall("emit_exprs");
-for (let _expr of _exprs.values) {
-(runtime.setLine(22), _emit_expr(_expr));
-(runtime.setLine(23), _emit(({ type: "string", value: ";\n" })));
+for (const r_18 of _exprs58.values) {;
+let _expr59 = r_18;
+(runtime.setLine(57), _emit_expr33(_expr59));
+(runtime.setLine(58), _emit39(({ type: "string", value: ";\n" })));
 };
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _discover_syms(_exprs) {
+function _discover_syms32(_exprs60) {
 runtime.pushCall("discover_syms");
-for (let _expr of _exprs.values) {
-let r_10 = _expr;
-let r_11 = r_10.values[0];
-let _ty = r_11;
-let r_12 = r_10.values[1];
-let _line = r_12;
-if (runtime.opNe(_ty, ({ type: "string", value: "list" }))) {
+for (const r_19 of _exprs60.values) {;
+let _expr61 = r_19;
+const r_20 = _expr61;
+const r_21 = r_20.values[0] ?? { type: "null"};
+let _ty62 = r_21;
+const r_22 = r_20.values[1] ?? { type: "null"};
+let _line63 = r_22;
+if (runtime.truthy(runtime.opNe(_ty62, ({ type: "string", value: "list" })))) {
 runtime.popCall();
 return { type: "null" }};
-let r_13 = _expr;
-let r_14 = r_13.values[0];
-let r_15 = r_13.values[1];
-let r_16 = r_13.values[2];
-let _s = r_16;
-if (runtime.opEq((runtime.setLine(32), ((...args) => runtime.builtinLen(...args))(_s)), ({ type: "int", value: 0 }))) {
+const r_23 = _expr61;
+const r_24 = r_23.values[0] ?? { type: "null"};
+const r_25 = r_23.values[1] ?? { type: "null"};
+const r_26 = r_23.values[2] ?? { type: "null"};
+let _s64 = r_26;
+if (runtime.truthy(runtime.opEq((runtime.setLine(67), ((...args) => runtime.builtinLen(...args))(_s64)), ({ type: "int", value: 0 })))) {
 runtime.popCall();
 return { type: "null" }};
-let r_17 = _s;
-let r_18 = r_17.values[0];
-let r_19 = r_18.values[0];
-let r_20 = r_18.values[1];
-let r_21 = r_18.values[2];
-let _id = r_21;
-if (runtime.opEq(_id, ({ type: "string", value: "fn" }))) {
-let r_22 = _s;
-let r_23 = r_22.values[0];
-let r_24 = r_22.values[1];
-let r_25 = r_24.values[0];
-let r_26 = r_24.values[1];
-let r_27 = r_24.values[2];
-let _name = r_27;
-let r_28 = r_22.values[2];
-let r_29 = r_28.values[0];
-let r_30 = r_28.values[1];
-let r_31 = r_28.values[2];
-let _params = r_31;
-let r_32 = r_22.values[3];
-let _body = r_32;
-(runtime.setLine(36), _define_sym(_name, ({ type: "list", values: [] })));
+const r_27 = _s64;
+const r_28 = r_27.values[0] ?? { type: "null"};
+const r_29 = r_28.values[0] ?? { type: "null"};
+const r_30 = r_28.values[1] ?? { type: "null"};
+const r_31 = r_28.values[2] ?? { type: "null"};
+let _id65 = r_31;
+if (runtime.truthy(runtime.opEq(_id65, ({ type: "string", value: "fn" })))) {
+const r_32 = _s64;
+const r_33 = r_32.values[0] ?? { type: "null"};
+const r_34 = r_32.values[1] ?? { type: "null"};
+const r_35 = r_34.values[0] ?? { type: "null"};
+const r_36 = r_34.values[1] ?? { type: "null"};
+const r_37 = r_34.values[2] ?? { type: "null"};
+let _ident66 = r_37;
+const r_38 = r_32.values[2] ?? { type: "null"};
+const r_39 = r_38.values[0] ?? { type: "null"};
+const r_40 = r_38.values[1] ?? { type: "null"};
+const r_41 = r_38.values[2] ?? { type: "null"};
+let _params67 = r_41;
+const r_42 = r_32.values[3] ?? { type: "null"};
+let _body68 = r_42;
+(runtime.setLine(71), _define_fn41(_ident66, _line63));
 };
 };
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_expr(_expr) {
+function _emit_expr33(_expr69) {
 runtime.pushCall("emit_expr");
-let r_33 = _expr;
-let r_34 = r_33.values[0];
-let _ty = r_34;
-let r_35 = r_33.values[1];
-let _line = r_35;
-if (runtime.opEq(_ty, ({ type: "string", value: "list" }))) {
-(runtime.setLine(44), _emit_list(_expr));
+const r_43 = _expr69;
+const r_44 = r_43.values[0] ?? { type: "null"};
+let _ty70 = r_44;
+const r_45 = r_43.values[1] ?? { type: "null"};
+let _line71 = r_45;
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "list" })))) {
+(runtime.setLine(79), _emit_list34(_expr69));
 } else {
-if (runtime.opEq(_ty, ({ type: "string", value: "int" }))) {
-({ type: "list", values: [] })} else {
-if (runtime.opEq(_ty, ({ type: "string", value: "string" }))) {
-({ type: "list", values: [] })} else {
-if (runtime.opEq(_ty, ({ type: "string", value: "ident" }))) {
-let r_36 = _expr;
-let r_37 = r_36.values[0];
-let r_38 = r_36.values[1];
-let r_39 = r_36.values[2];
-let _value = r_39;
-if (runtime.opEq(_value, ({ type: "string", value: "null" }))) {
-(runtime.setLine(55), _emit(({ type: "string", value: "({ type: \"null\" })" })));
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "int" })))) {
+const r_46 = _expr69;
+const r_47 = r_46.values[0] ?? { type: "null"};
+const r_48 = r_46.values[1] ?? { type: "null"};
+const r_49 = r_46.values[2] ?? { type: "null"};
+let _value72 = r_49;
+(runtime.setLine(82), _emit39((runtime.setLine(82), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "({ type: \"int\", value: % })" }), _value72))));
+} else {
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "string" })))) {
+const r_50 = _expr69;
+const r_51 = r_50.values[0] ?? { type: "null"};
+const r_52 = r_50.values[1] ?? { type: "null"};
+const r_53 = r_50.values[2] ?? { type: "null"};
+let _value73 = r_53;
+(runtime.setLine(85), _emit39((runtime.setLine(85), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "({ type: \"string\", value: \"%\" })" }), (runtime.setLine(85), _string_escape19(_value73))))));
+} else {
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "ident" })))) {
+const r_54 = _expr69;
+const r_55 = r_54.values[0] ?? { type: "null"};
+const r_56 = r_54.values[1] ?? { type: "null"};
+const r_57 = r_54.values[2] ?? { type: "null"};
+let _value74 = r_57;
+if (runtime.truthy(runtime.opEq(_value74, ({ type: "string", value: "null" })))) {
+(runtime.setLine(90), _emit39(({ type: "string", value: "({ type: \"null\" })" })));
 runtime.popCall();
 return { type: "null" };
 } else {
-if (runtime.opEq(_value, ({ type: "string", value: "false" }))) {
-(runtime.setLine(58), _emit(({ type: "string", value: "({ type: \"bool\", value: false })" })));
+if (runtime.truthy(runtime.opEq(_value74, ({ type: "string", value: "false" })))) {
+(runtime.setLine(93), _emit39(({ type: "string", value: "({ type: \"bool\", value: false })" })));
 runtime.popCall();
 return { type: "null" };
 } else {
-if (runtime.opEq(_value, ({ type: "string", value: "true" }))) {
-(runtime.setLine(61), _emit(({ type: "string", value: "({ type: \"bool\", value: true })" })));
+if (runtime.truthy(runtime.opEq(_value74, ({ type: "string", value: "true" })))) {
+(runtime.setLine(96), _emit39(({ type: "string", value: "({ type: \"bool\", value: true })" })));
 runtime.popCall();
 return { type: "null" };
 }}};
-let r_40 = (runtime.setLine(65), _get_sym(_value));
-let _sym = r_40;
-if (runtime.opEq(_sym, ({ type: "null" }))) {
-(runtime.setLine(67), _print_syms());
-(runtime.setLine(68), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "undefined symbol '%' on line %" }), _value, _line));
+const r_58 = (runtime.setLine(100), _get_sym48(_value74));
+let _sym75 = r_58;
+if (runtime.truthy(runtime.opEq(_sym75, ({ type: "null" })))) {
+(runtime.setLine(102), _print_syms49());
+(runtime.setLine(103), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "undefined symbol '%' on line %" }), _value74, _line71));
 };
-let r_41 = _sym;
-let r_42 = r_41.values[0];
-let _sym_ty = r_42;
-if (runtime.opEq(_sym_ty, ({ type: "string", value: "builtin" }))) {
-let r_43 = _sym;
-let r_44 = r_43.values[0];
-let r_45 = r_43.values[1];
-let _id = r_45;
-(runtime.setLine(74), _emit((runtime.setLine(74), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "((...args) => runtime.%(...args))" }), _id))));
+const r_59 = _sym75;
+const r_60 = r_59.values[0] ?? { type: "null"};
+let _sym_id76 = r_60;
+const r_61 = r_59.values[1] ?? { type: "null"};
+let _sym_ty77 = r_61;
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "builtin" })))) {
+const r_62 = _sym75;
+const r_63 = r_62.values[0] ?? { type: "null"};
+const r_64 = r_62.values[1] ?? { type: "null"};
+const r_65 = r_62.values[2] ?? { type: "null"};
+let _id78 = r_65;
+(runtime.setLine(109), _emit39((runtime.setLine(109), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "((...args) => runtime.%(...args))" }), _id78))));
 } else {
-if (runtime.opEq(_sym_ty, ({ type: "string", value: "fn" }))) {
-(runtime.setLine(76), _emit((runtime.setLine(76), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%" }), _value))));
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "fn" })))) {
+(runtime.setLine(111), _emit39((runtime.setLine(111), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _value74, _sym_id76))));
 } else {
-if (runtime.opEq(_sym_ty, ({ type: "string", value: "param" }))) {
-(runtime.setLine(78), _emit((runtime.setLine(78), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%" }), _value))));
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "param" })))) {
+(runtime.setLine(113), _emit39((runtime.setLine(113), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _value74, _sym_id76))));
 } else {
-if (runtime.opEq(_sym_ty, ({ type: "string", value: "let" }))) {
-(runtime.setLine(80), _emit((runtime.setLine(80), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%" }), _value))));
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "let" })))) {
+(runtime.setLine(115), _emit39((runtime.setLine(115), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _value74, _sym_id76))));
 } else {
-(runtime.setLine(82), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented '%'" }), _sym_ty));
+(runtime.setLine(117), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented '%'" }), _sym_ty77));
 }}}};
 } else {
-(runtime.setLine(85), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "unknown expr type '%' on line %" }), _ty, _line));
+(runtime.setLine(120), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "unknown expr type '%' on line %" }), _ty70, _line71));
 }}}};
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_list(_expr) {
+function _emit_list34(_expr79) {
 runtime.pushCall("emit_list");
-let r_46 = _expr;
-let r_47 = r_46.values[0];
-let _ty = r_47;
-let r_48 = r_46.values[1];
-let _line = r_48;
-let r_49 = r_46.values[2];
-let _s = r_49;
-if (runtime.opEq((runtime.setLine(91), ((...args) => runtime.builtinLen(...args))(_s)), ({ type: "int", value: 0 }))) {
-(runtime.setLine(92), _emit(({ type: "string", value: "({ type: \"list\", values: [] })" })));
+const r_66 = _expr79;
+const r_67 = r_66.values[0] ?? { type: "null"};
+let _ty80 = r_67;
+const r_68 = r_66.values[1] ?? { type: "null"};
+let _line81 = r_68;
+const r_69 = r_66.values[2] ?? { type: "null"};
+let _s82 = r_69;
+if (runtime.truthy(runtime.opEq((runtime.setLine(126), ((...args) => runtime.builtinLen(...args))(_s82)), ({ type: "int", value: 0 })))) {
+(runtime.setLine(127), _emit39(({ type: "string", value: "({ type: \"list\", values: [] })" })));
 runtime.popCall();
 return { type: "null" };
 };
-let r_50 = _s;
-let r_51 = r_50.values[0];
-let r_52 = r_51.values[0];
-let _id_ty = r_52;
-let r_53 = r_51.values[1];
-let r_54 = r_51.values[2];
-let _id = r_54;
-if (runtime.opNe(_id_ty, ({ type: "string", value: "ident" }))) {
-(runtime.setLine(97), _emit(({ type: "string", value: "({ type: \"list\", values: [] })" })));
+const r_70 = _s82;
+const r_71 = r_70.values[0] ?? { type: "null"};
+const r_72 = r_71.values[0] ?? { type: "null"};
+let _id_ty83 = r_72;
+const r_73 = r_71.values[1] ?? { type: "null"};
+const r_74 = r_71.values[2] ?? { type: "null"};
+let _id84 = r_74;
+if (runtime.truthy(runtime.opNe(_id_ty83, ({ type: "string", value: "ident" })))) {
+(runtime.setLine(132), _emit_list_literal35(_s82));
 runtime.popCall();
 return { type: "null" };
 };
-if (runtime.opEq(_id, ({ type: "string", value: "fn" }))) {
-let r_55 = _s;
-let r_56 = r_55.values[0];
-let r_57 = r_55.values[1];
-let r_58 = r_57.values[0];
-let r_59 = r_57.values[1];
-let r_60 = r_57.values[2];
-let _name = r_60;
-let r_61 = r_55.values[2];
-let r_62 = r_61.values[0];
-let r_63 = r_61.values[1];
-let r_64 = r_61.values[2];
-let _params = r_64;
-let r_65 = r_55.values[3];
-let _body = r_65;
-(runtime.setLine(102), _emit((runtime.setLine(102), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "function _%(" }), _name))));
-(runtime.setLine(104), _enter_scope());
-let r_66 = ({ type: "bool", value: true });
-let _first = r_66;
-for (let [, , _name] of _params.values) {
-if (runtime.opNot(_first)) {
-(runtime.setLine(109), _emit(({ type: "string", value: ", " })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "fn" })))) {
+const r_75 = _s82;
+const r_76 = r_75.values[0] ?? { type: "null"};
+const r_77 = r_75.values[1] ?? { type: "null"};
+const r_78 = r_77.values[0] ?? { type: "null"};
+const r_79 = r_77.values[1] ?? { type: "null"};
+const r_80 = r_77.values[2] ?? { type: "null"};
+let _ident85 = r_80;
+const r_81 = r_75.values[2] ?? { type: "null"};
+const r_82 = r_81.values[0] ?? { type: "null"};
+const r_83 = r_81.values[1] ?? { type: "null"};
+const r_84 = r_81.values[2] ?? { type: "null"};
+let _params86 = r_84;
+const r_85 = r_75.values[3] ?? { type: "null"};
+let _body87 = r_85;
+const r_86 = (runtime.setLine(138), _get_sym48(_ident85));
+let _sym88 = r_86;
+const r_87 = _sym88;
+const r_88 = r_87.values[0] ?? { type: "null"};
+let _sym_id89 = r_88;
+(runtime.setLine(141), _emit39((runtime.setLine(141), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "function _%%(" }), _ident85, _sym_id89))));
+(runtime.setLine(143), _enter_scope45());
+const r_89 = ({ type: "bool", value: true });
+let _first90 = r_89;
+for (const r_90 of _params86.values) {;
+const r_91 = r_90.values[0] ?? { type: "null"};
+const r_92 = r_90.values[1] ?? { type: "null"};
+const r_93 = r_90.values[2] ?? { type: "null"};
+let _ident91 = r_93;
+if (runtime.truthy(runtime.opNot(_first90))) {
+(runtime.setLine(148), _emit39(({ type: "string", value: ", " })));
 };
-(_106 = runtime.assignValue(({ type: "bool", value: false })));
-(runtime.setLine(113), _emit((runtime.setLine(113), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%" }), _name))));
-(runtime.setLine(115), _define_sym(_name, ({ type: "list", values: [] })));
+(_first90 = ({ type: "bool", value: false }));
+const r_94 = (runtime.setLine(152), _define_param42(_ident91, _line81));
+let _sym_id92 = r_94;
+(runtime.setLine(153), _emit39((runtime.setLine(153), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _ident91, _sym_id92))));
 };
-(runtime.setLine(119), _emit((runtime.setLine(119), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: ") {\n" }), _name))));
-(runtime.setLine(120), _emit((runtime.setLine(120), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.pushCall(\"%\");\n" }), _name))));
-(runtime.setLine(122), _emit_expr(_body));
-(runtime.setLine(123), _emit(({ type: "string", value: ";\nruntime.popCall();\nreturn { type: \"null\" };\n}" })));
-(runtime.setLine(125), _leave_scope());
+(runtime.setLine(157), _emit39(({ type: "string", value: ") {\n" })));
+(runtime.setLine(158), _emit39((runtime.setLine(158), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.pushCall(\"%\");\n" }), _ident85))));
+(runtime.setLine(160), _emit_expr33(_body87));
+(runtime.setLine(161), _emit39(({ type: "string", value: ";\nruntime.popCall();\nreturn { type: \"null\" };\n}" })));
+(runtime.setLine(163), _leave_scope46());
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "let" }))) {
-let r_67 = _s;
-let r_68 = r_67.values[0];
-let r_69 = r_67.values[1];
-let _pat = r_69;
-let r_70 = r_67.values[2];
-let _expr = r_70;
-let r_71 = (runtime.setLine(128), _let_node_reg_count());
-let _reg = r_71;
-(runtime.setLine(129), _let_node_reg_increment());
-(runtime.setLine(130), _emit((runtime.setLine(130), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "let r_% = " }), _reg))));
-(runtime.setLine(131), _emit_expr(_expr));
-(runtime.setLine(132), _emit_let_node(_pat, _reg));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "let" })))) {
+const r_95 = _s82;
+const r_96 = r_95.values[0] ?? { type: "null"};
+const r_97 = r_95.values[1] ?? { type: "null"};
+let _pat93 = r_97;
+const r_98 = r_95.values[2] ?? { type: "null"};
+let _expr94 = r_98;
+const r_99 = (runtime.setLine(166), _let_node_reg_count50());
+let _reg95 = r_99;
+(runtime.setLine(167), _let_node_reg_increment51());
+(runtime.setLine(168), _emit39((runtime.setLine(168), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "const r_% = " }), _reg95))));
+(runtime.setLine(169), _emit_expr33(_expr94));
+(runtime.setLine(170), _emit_let_node36(_pat93, _reg95));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "do" }))) {
-(runtime.setLine(134), _enter_scope());
-(runtime.setLine(135), _discover_syms((runtime.setLine(135), _slice(_s, ({ type: "int", value: 1 })))));
-(runtime.setLine(136), _emit_exprs((runtime.setLine(136), _slice(_s, ({ type: "int", value: 1 })))));
-(runtime.setLine(137), _leave_scope());
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "do" })))) {
+(runtime.setLine(172), _enter_scope45());
+(runtime.setLine(173), _discover_syms32((runtime.setLine(173), _slice26(_s82, ({ type: "int", value: 1 })))));
+(runtime.setLine(174), _emit_exprs31((runtime.setLine(174), _slice26(_s82, ({ type: "int", value: 1 })))));
+(runtime.setLine(175), _leave_scope46());
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "for" }))) {
-let r_72 = _s;
-let r_73 = r_72.values[0];
-let r_74 = r_72.values[1];
-let _pat = r_74;
-let r_75 = r_72.values[2];
-let _expr = r_75;
-let r_76 = r_72.values[3];
-let _body = r_76;
-(runtime.setLine(140), _enter_scope());
-(runtime.setLine(141), _emit(({ type: "string", value: "for (let " })));
-(runtime.setLine(142), _emit_pat(_pat));
-(runtime.setLine(143), _emit(({ type: "string", value: " of " })));
-(runtime.setLine(144), _emit_expr(_expr));
-(runtime.setLine(145), _emit(({ type: "string", value: ".values) {\n" })));
-(runtime.setLine(146), _emit_expr(_body));
-(runtime.setLine(147), _emit(({ type: "string", value: "}" })));
-(runtime.setLine(148), _leave_scope());
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "for" })))) {
+const r_100 = _s82;
+const r_101 = r_100.values[0] ?? { type: "null"};
+const r_102 = r_100.values[1] ?? { type: "null"};
+let _pat96 = r_102;
+const r_103 = r_100.values[2] ?? { type: "null"};
+let _expr97 = r_103;
+const r_104 = r_100.values[3] ?? { type: "null"};
+let _body98 = r_104;
+const r_105 = (runtime.setLine(179), _let_node_reg_count50());
+let _reg99 = r_105;
+(runtime.setLine(180), _let_node_reg_increment51());
+(runtime.setLine(181), _emit39((runtime.setLine(181), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "for (const r_% of " }), _reg99))));
+(runtime.setLine(182), _emit_expr33(_expr97));
+(runtime.setLine(183), _emit39(({ type: "string", value: ".values) {" })));
+(runtime.setLine(185), _enter_scope45());
+(runtime.setLine(186), _emit_let_node36(_pat96, _reg99));
+(runtime.setLine(187), _enter_scope45());
+(runtime.setLine(189), _emit39(({ type: "string", value: ";\n" })));
+(runtime.setLine(190), _emit_expr33(_body98));
+(runtime.setLine(191), _emit39(({ type: "string", value: "}" })));
+(runtime.setLine(193), _leave_scope46());
+(runtime.setLine(194), _leave_scope46());
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "loop" }))) {
-let r_77 = _s;
-let r_78 = r_77.values[0];
-let r_79 = r_77.values[1];
-let _body = r_79;
-(runtime.setLine(151), _emit(({ type: "string", value: "while (true) {\n" })));
-(runtime.setLine(152), _emit_expr(_body));
-(runtime.setLine(153), _emit(({ type: "string", value: "}" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "loop" })))) {
+const r_106 = _s82;
+const r_107 = r_106.values[0] ?? { type: "null"};
+const r_108 = r_106.values[1] ?? { type: "null"};
+let _body100 = r_108;
+(runtime.setLine(197), _emit39(({ type: "string", value: "while (true) {\n" })));
+(runtime.setLine(198), _emit_expr33(_body100));
+(runtime.setLine(199), _emit39(({ type: "string", value: "}" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "if" }))) {
-let r_80 = _s;
-let r_81 = r_80.values[0];
-let r_82 = r_80.values[1];
-let _cond = r_82;
-let r_83 = r_80.values[2];
-let _truthy = r_83;
-let r_84 = r_80.values[3];
-let _falsy = r_84;
-(runtime.setLine(156), _emit(({ type: "string", value: "if (" })));
-(runtime.setLine(157), _emit_expr(_cond));
-(runtime.setLine(158), _emit(({ type: "string", value: ") {\n" })));
-(runtime.setLine(159), _emit_expr(_truthy));
-(runtime.setLine(160), _emit(({ type: "string", value: "}" })));
-if (runtime.opNe(_falsy, ({ type: "null" }))) {
-(runtime.setLine(162), _emit(({ type: "string", value: " else {\n" })));
-(runtime.setLine(163), _emit_expr(_falsy));
-(runtime.setLine(164), _emit(({ type: "string", value: "}" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "if" })))) {
+const r_109 = _s82;
+const r_110 = r_109.values[0] ?? { type: "null"};
+const r_111 = r_109.values[1] ?? { type: "null"};
+let _cond101 = r_111;
+const r_112 = r_109.values[2] ?? { type: "null"};
+let _truthy102 = r_112;
+const r_113 = r_109.values[3] ?? { type: "null"};
+let _falsy103 = r_113;
+(runtime.setLine(202), _emit39(({ type: "string", value: "if (runtime.truthy(" })));
+(runtime.setLine(203), _emit_expr33(_cond101));
+(runtime.setLine(204), _emit39(({ type: "string", value: ")) {\n" })));
+(runtime.setLine(205), _emit_expr33(_truthy102));
+(runtime.setLine(206), _emit39(({ type: "string", value: "}" })));
+if (runtime.truthy(runtime.opNe(_falsy103, ({ type: "null" })))) {
+(runtime.setLine(208), _emit39(({ type: "string", value: " else {\n" })));
+(runtime.setLine(209), _emit_expr33(_falsy103));
+(runtime.setLine(210), _emit39(({ type: "string", value: "}" })));
 };
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "return" }))) {
-let r_85 = _s;
-let r_86 = r_85.values[0];
-let r_87 = r_85.values[1];
-let _value = r_87;
-(runtime.setLine(168), _emit(({ type: "string", value: "runtime.popCall();\n" })));
-(runtime.setLine(169), _emit(({ type: "string", value: "return " })));
-if (runtime.opNe(_value, ({ type: "null" }))) {
-(runtime.setLine(171), _emit_expr(_value));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "return" })))) {
+const r_114 = _s82;
+const r_115 = r_114.values[0] ?? { type: "null"};
+const r_116 = r_114.values[1] ?? { type: "null"};
+let _value104 = r_116;
+(runtime.setLine(214), _emit39(({ type: "string", value: "runtime.popCall();\n" })));
+(runtime.setLine(215), _emit39(({ type: "string", value: "return " })));
+if (runtime.truthy(runtime.opNe(_value104, ({ type: "null" })))) {
+(runtime.setLine(217), _emit_expr33(_value104));
 } else {
-(runtime.setLine(173), _emit(({ type: "string", value: "{ type: \"null\" }" })));
+(runtime.setLine(219), _emit39(({ type: "string", value: "{ type: \"null\" }" })));
 };
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "break" }))) {
-let r_88 = _s;
-let r_89 = r_88.values[0];
-let r_90 = r_88.values[1];
-let _value = r_90;
-(runtime.setLine(177), _emit(({ type: "string", value: "break" })));
-if (runtime.opNe(_value, ({ type: "null" }))) {
-(runtime.setLine(179), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "break" })))) {
+const r_117 = _s82;
+const r_118 = r_117.values[0] ?? { type: "null"};
+const r_119 = r_117.values[1] ?? { type: "null"};
+let _value105 = r_119;
+(runtime.setLine(223), _emit39(({ type: "string", value: "break" })));
+if (runtime.truthy(runtime.opNe(_value105, ({ type: "null" })))) {
+(runtime.setLine(225), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented" })));
 };
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "call" }))) {
-let r_91 = _s;
-let r_92 = r_91.values[0];
-let r_93 = r_91.values[1];
-let _callee = r_93;
-let r_94 = (runtime.setLine(183), _slice(_s, ({ type: "int", value: 2 })));
-let _args = r_94;
-(runtime.setLine(184), _emit((runtime.setLine(184), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(runtime.setLine(%), " }), _line))));
-(runtime.setLine(185), _emit_expr(_callee));
-(runtime.setLine(186), _emit(({ type: "string", value: "(" })));
-let r_95 = ({ type: "bool", value: true });
-let _first = r_95;
-for (let _arg of _args.values) {
-if (runtime.opNot(_first)) {
-(runtime.setLine(191), _emit(({ type: "string", value: ", " })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "call" })))) {
+const r_120 = _s82;
+const r_121 = r_120.values[0] ?? { type: "null"};
+const r_122 = r_120.values[1] ?? { type: "null"};
+let _callee106 = r_122;
+const r_123 = (runtime.setLine(229), _slice26(_s82, ({ type: "int", value: 2 })));
+let _args107 = r_123;
+(runtime.setLine(230), _emit39((runtime.setLine(230), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(runtime.setLine(%), " }), _line81))));
+(runtime.setLine(231), _emit_expr33(_callee106));
+(runtime.setLine(232), _emit39(({ type: "string", value: "(" })));
+const r_124 = ({ type: "bool", value: true });
+let _first108 = r_124;
+for (const r_125 of _args107.values) {;
+let _arg109 = r_125;
+if (runtime.truthy(runtime.opNot(_first108))) {
+(runtime.setLine(237), _emit39(({ type: "string", value: ", " })));
 };
-(_188 = runtime.assignValue(({ type: "bool", value: false })));
-(runtime.setLine(195), _emit_expr(_arg));
+(_first108 = ({ type: "bool", value: false }));
+(runtime.setLine(241), _emit_expr33(_arg109));
 };
-(runtime.setLine(198), _emit(({ type: "string", value: "))" })));
+(runtime.setLine(244), _emit39(({ type: "string", value: "))" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "=" }))) {
-(runtime.setLine(200), _emit_assign_expr(_s, _line, ({ type: "string", value: "=" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "=" })))) {
+(runtime.setLine(246), _emit_assign_expr38(_s82, _line81, ({ type: "string", value: "=" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "+=" }))) {
-(runtime.setLine(202), _emit_assign_expr(_s, _line, ({ type: "string", value: "+" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "+=" })))) {
+(runtime.setLine(248), _emit_assign_expr38(_s82, _line81, ({ type: "string", value: "+" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "-=" }))) {
-(runtime.setLine(204), _emit_assign_expr(_s, _line, ({ type: "string", value: "-" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "-=" })))) {
+(runtime.setLine(250), _emit_assign_expr38(_s82, _line81, ({ type: "string", value: "-" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "or" }))) {
-let r_96 = _s;
-let r_97 = r_96.values[0];
-let r_98 = r_96.values[1];
-let _left = r_98;
-let r_99 = r_96.values[2];
-let _right = r_99;
-(runtime.setLine(207), _emit((runtime.setLine(207), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(runtime.setLine(%)" }), _line))));
-(runtime.setLine(208), _emit(({ type: "string", value: ", { type: \"bool\", value: this.runtime.truthy(" })));
-(runtime.setLine(209), _emit_expr(_left));
-(runtime.setLine(210), _emit(({ type: "string", value: ") || this.runtime.falsy(" })));
-(runtime.setLine(211), _emit_expr(_right));
-(runtime.setLine(212), _emit(({ type: "string", value: ") })" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "or" })))) {
+const r_126 = _s82;
+const r_127 = r_126.values[0] ?? { type: "null"};
+const r_128 = r_126.values[1] ?? { type: "null"};
+let _left110 = r_128;
+const r_129 = r_126.values[2] ?? { type: "null"};
+let _right111 = r_129;
+(runtime.setLine(253), _emit39((runtime.setLine(253), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(runtime.setLine(%)" }), _line81))));
+(runtime.setLine(254), _emit39(({ type: "string", value: ", { type: \"bool\", value: runtime.truthy(" })));
+(runtime.setLine(255), _emit_expr33(_left110));
+(runtime.setLine(256), _emit39(({ type: "string", value: ") || runtime.truthy(" })));
+(runtime.setLine(257), _emit_expr33(_right111));
+(runtime.setLine(258), _emit39(({ type: "string", value: ") })" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "and" }))) {
-let r_100 = _s;
-let r_101 = r_100.values[0];
-let r_102 = r_100.values[1];
-let _left = r_102;
-let r_103 = r_100.values[2];
-let _right = r_103;
-(runtime.setLine(215), _emit((runtime.setLine(215), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(runtime.setLine(%)" }), _line))));
-(runtime.setLine(216), _emit(({ type: "string", value: ", { type: \"bool\", value: this.runtime.truthy(" })));
-(runtime.setLine(217), _emit_expr(_left));
-(runtime.setLine(218), _emit(({ type: "string", value: ") && this.runtime.falsy(" })));
-(runtime.setLine(219), _emit_expr(_right));
-(runtime.setLine(220), _emit(({ type: "string", value: ") })" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "and" })))) {
+const r_130 = _s82;
+const r_131 = r_130.values[0] ?? { type: "null"};
+const r_132 = r_130.values[1] ?? { type: "null"};
+let _left112 = r_132;
+const r_133 = r_130.values[2] ?? { type: "null"};
+let _right113 = r_133;
+(runtime.setLine(261), _emit39((runtime.setLine(261), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(runtime.setLine(%)" }), _line81))));
+(runtime.setLine(262), _emit39(({ type: "string", value: ", { type: \"bool\", value: runtime.truthy(" })));
+(runtime.setLine(263), _emit_expr33(_left112));
+(runtime.setLine(264), _emit39(({ type: "string", value: ") && runtime.truthy(" })));
+(runtime.setLine(265), _emit_expr33(_right113));
+(runtime.setLine(266), _emit39(({ type: "string", value: ") })" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "==" }))) {
-(runtime.setLine(222), _emit_binary_op(_s, ({ type: "string", value: "opEq" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "==" })))) {
+(runtime.setLine(268), _emit_binary_op37(_s82, ({ type: "string", value: "opEq" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "!=" }))) {
-(runtime.setLine(224), _emit_binary_op(_s, ({ type: "string", value: "opNe" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "!=" })))) {
+(runtime.setLine(270), _emit_binary_op37(_s82, ({ type: "string", value: "opNe" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "<" }))) {
-(runtime.setLine(226), _emit_binary_op(_s, ({ type: "string", value: "opLt" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "<" })))) {
+(runtime.setLine(272), _emit_binary_op37(_s82, ({ type: "string", value: "opLt" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: ">" }))) {
-(runtime.setLine(228), _emit_binary_op(_s, ({ type: "string", value: "opGt" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: ">" })))) {
+(runtime.setLine(274), _emit_binary_op37(_s82, ({ type: "string", value: "opGt" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "<=" }))) {
-(runtime.setLine(230), _emit_binary_op(_s, ({ type: "string", value: "opLte" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "<=" })))) {
+(runtime.setLine(276), _emit_binary_op37(_s82, ({ type: "string", value: "opLte" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: ">=" }))) {
-(runtime.setLine(232), _emit_binary_op(_s, ({ type: "string", value: "opGte" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: ">=" })))) {
+(runtime.setLine(278), _emit_binary_op37(_s82, ({ type: "string", value: "opGte" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "+" }))) {
-(runtime.setLine(234), _emit_binary_op(_s, ({ type: "string", value: "opAdd" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "+" })))) {
+(runtime.setLine(280), _emit_binary_op37(_s82, ({ type: "string", value: "opAdd" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "-" }))) {
-(runtime.setLine(236), _emit_binary_op(_s, ({ type: "string", value: "opSub" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "-" })))) {
+(runtime.setLine(282), _emit_binary_op37(_s82, ({ type: "string", value: "opSub" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "not" }))) {
-let r_104 = _s;
-let r_105 = r_104.values[0];
-let r_106 = r_104.values[1];
-let _expr = r_106;
-(runtime.setLine(239), _emit(({ type: "string", value: "runtime.opNot(" })));
-(runtime.setLine(240), _emit_expr(_expr));
-(runtime.setLine(241), _emit(({ type: "string", value: ")" })));
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "not" })))) {
+const r_134 = _s82;
+const r_135 = r_134.values[0] ?? { type: "null"};
+const r_136 = r_134.values[1] ?? { type: "null"};
+let _expr114 = r_136;
+(runtime.setLine(285), _emit39(({ type: "string", value: "runtime.opNot(" })));
+(runtime.setLine(286), _emit_expr33(_expr114));
+(runtime.setLine(287), _emit39(({ type: "string", value: ")" })));
 } else {
-(runtime.setLine(243), _emit(({ type: "string", value: "({ type: \"list\", values: [" })));
-let r_107 = ({ type: "bool", value: true });
-let _first = r_107;
-for (let _e of _s.values) {
-if (runtime.opNot(_first)) {
-(runtime.setLine(247), _emit(({ type: "string", value: ", " })));
-};
-(_244 = runtime.assignValue(({ type: "bool", value: false })));
-(runtime.setLine(251), _emit_expr(_e));
-};
-(runtime.setLine(253), _emit(({ type: "string", value: "] })" })));
+(runtime.setLine(289), _emit_list_literal35(_s82));
 }}}}}}}}}}}}}}}}}}}}}}};
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_let_node(_pat, _base_reg) {
+function _emit_list_literal35(_s115) {
+runtime.pushCall("emit_list_literal");
+(runtime.setLine(294), _emit39(({ type: "string", value: "({ type: \"list\", values: [" })));
+const r_137 = ({ type: "bool", value: true });
+let _first116 = r_137;
+for (const r_138 of _s115.values) {;
+let _e117 = r_138;
+if (runtime.truthy(runtime.opNot(_first116))) {
+(runtime.setLine(298), _emit39(({ type: "string", value: ", " })));
+};
+(_first116 = ({ type: "bool", value: false }));
+(runtime.setLine(302), _emit_expr33(_e117));
+};
+(runtime.setLine(304), _emit39(({ type: "string", value: "] })" })));
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _emit_let_node36(_pat118, _base_reg119) {
 runtime.pushCall("emit_let_node");
-let r_108 = _pat;
-let r_109 = r_108.values[0];
-let _pat_ty = r_109;
-let r_110 = r_108.values[1];
-let _line = r_110;
-if (runtime.opEq(_pat_ty, ({ type: "string", value: "ident" }))) {
-let r_111 = _pat;
-let r_112 = r_111.values[0];
-let r_113 = r_111.values[1];
-let r_114 = r_111.values[2];
-let _ident = r_114;
-if (runtime.opEq(_ident, ({ type: "string", value: "_" }))) {
+const r_139 = _pat118;
+const r_140 = r_139.values[0] ?? { type: "null"};
+let _pat_ty120 = r_140;
+const r_141 = r_139.values[1] ?? { type: "null"};
+let _line121 = r_141;
+if (runtime.truthy(runtime.opEq(_pat_ty120, ({ type: "string", value: "ident" })))) {
+const r_142 = _pat118;
+const r_143 = r_142.values[0] ?? { type: "null"};
+const r_144 = r_142.values[1] ?? { type: "null"};
+const r_145 = r_142.values[2] ?? { type: "null"};
+let _ident122 = r_145;
+if (runtime.truthy(runtime.opEq(_ident122, ({ type: "string", value: "_" })))) {
 runtime.popCall();
 return { type: "null" }};
-(runtime.setLine(264), _emit((runtime.setLine(264), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: ";\nlet _% = r_%" }), _ident, _base_reg))));
-(runtime.setLine(265), _define_sym(_ident, ({ type: "list", values: [] })));
+const r_146 = (runtime.setLine(314), _define_let43(_ident122, _line121));
+let _sym_id123 = r_146;
+(runtime.setLine(315), _emit39((runtime.setLine(315), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: ";\nlet _%% = r_%" }), _ident122, _sym_id123, _base_reg119))));
 } else {
-if (runtime.opEq(_pat_ty, ({ type: "string", value: "list" }))) {
-let r_115 = _pat;
-let r_116 = r_115.values[0];
-let r_117 = r_115.values[1];
-let r_118 = r_115.values[2];
-let _pats = r_118;
-let r_119 = ({ type: "int", value: 0 });
-let _i = r_119;
-for (let _pat of _pats.values) {
-let r_120 = (runtime.setLine(271), _let_node_reg_count());
-let _reg = r_120;
-(runtime.setLine(272), _let_node_reg_increment());
-(runtime.setLine(273), _emit((runtime.setLine(273), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: ";\nlet r_% = r_%.values[%]" }), _reg, _base_reg, _i))));
-(runtime.setLine(274), _emit_let_node(_pat, _reg));
-(_269 = runtime.assignValue(runtime.opAdd(_269, ({ type: "int", value: 1 }))));
+if (runtime.truthy(runtime.opEq(_pat_ty120, ({ type: "string", value: "list" })))) {
+const r_147 = _pat118;
+const r_148 = r_147.values[0] ?? { type: "null"};
+const r_149 = r_147.values[1] ?? { type: "null"};
+const r_150 = r_147.values[2] ?? { type: "null"};
+let _pats124 = r_150;
+const r_151 = ({ type: "int", value: 0 });
+let _i125 = r_151;
+for (const r_152 of _pats124.values) {;
+let _pat126 = r_152;
+const r_153 = (runtime.setLine(337), _let_node_reg_count50());
+let _reg127 = r_153;
+(runtime.setLine(338), _let_node_reg_increment51());
+(runtime.setLine(339), _emit39((runtime.setLine(339), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: ";\nconst r_% = r_%.values[%] ?? { type: \"null\"}" }), _reg127, _base_reg119, _i125))));
+(runtime.setLine(343), _emit_let_node36(_pat126, _reg127));
+(_i125 = runtime.opAdd(_i125, ({ type: "int", value: 1 })));
 };
 } else {
-(runtime.setLine(278), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "malformed pattern on line %" }), _line));
+(runtime.setLine(347), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "malformed pattern on line %" }), _line121));
 }};
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_binary_op(_s, _id) {
+function _emit_binary_op37(_s128, _id129) {
 runtime.pushCall("emit_binary_op");
-let r_121 = _s;
-let r_122 = r_121.values[0];
-let r_123 = r_121.values[1];
-let _left = r_123;
-let r_124 = r_121.values[2];
-let _right = r_124;
-(runtime.setLine(284), _emit((runtime.setLine(284), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.%(" }), _id))));
-(runtime.setLine(285), _emit_expr(_left));
-(runtime.setLine(286), _emit(({ type: "string", value: ", " })));
-(runtime.setLine(287), _emit_expr(_right));
-(runtime.setLine(288), _emit(({ type: "string", value: ")" })));
+const r_154 = _s128;
+const r_155 = r_154.values[0] ?? { type: "null"};
+const r_156 = r_154.values[1] ?? { type: "null"};
+let _left130 = r_156;
+const r_157 = r_154.values[2] ?? { type: "null"};
+let _right131 = r_157;
+(runtime.setLine(353), _emit39((runtime.setLine(353), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.%(" }), _id129))));
+(runtime.setLine(354), _emit_expr33(_left130));
+(runtime.setLine(355), _emit39(({ type: "string", value: ", " })));
+(runtime.setLine(356), _emit_expr33(_right131));
+(runtime.setLine(357), _emit39(({ type: "string", value: ")" })));
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_assign_expr(_s, _line, _id) {
+function _emit_assign_expr38(_s132, _line133, _id134) {
 runtime.pushCall("emit_assign_expr");
-let r_125 = _s;
-let r_126 = r_125.values[0];
-let r_127 = r_125.values[1];
-let r_128 = r_127.values[0];
-let _target_type = r_128;
-let r_129 = r_125.values[2];
-let _expr = r_129;
-if (runtime.opNe(_target_type, ({ type: "string", value: "ident" }))) {
-(runtime.setLine(294), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "cannot assign to expression on line %" }), _line));
+const r_158 = _s132;
+const r_159 = r_158.values[0] ?? { type: "null"};
+const r_160 = r_158.values[1] ?? { type: "null"};
+const r_161 = r_160.values[0] ?? { type: "null"};
+let _target_type135 = r_161;
+const r_162 = r_158.values[2] ?? { type: "null"};
+let _expr136 = r_162;
+if (runtime.truthy(runtime.opNe(_target_type135, ({ type: "string", value: "ident" })))) {
+(runtime.setLine(363), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "cannot assign to expression on line %" }), _line133));
 };
-let r_130 = _s;
-let r_131 = r_130.values[0];
-let r_132 = r_130.values[1];
-let r_133 = r_132.values[0];
-let r_134 = r_132.values[1];
-let r_135 = r_132.values[2];
-let _ident = r_135;
-let r_136 = (runtime.setLine(297), _get_sym(_ident));
-let _sym = r_136;
-if (runtime.opEq(_sym, ({ type: "null" }))) {
-(runtime.setLine(299), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "could not find symbol '%' on line %" }), _ident, _line));
+const r_163 = _s132;
+const r_164 = r_163.values[0] ?? { type: "null"};
+const r_165 = r_163.values[1] ?? { type: "null"};
+const r_166 = r_165.values[0] ?? { type: "null"};
+const r_167 = r_165.values[1] ?? { type: "null"};
+const r_168 = r_165.values[2] ?? { type: "null"};
+let _ident137 = r_168;
+const r_169 = (runtime.setLine(366), _get_sym48(_ident137));
+let _sym138 = r_169;
+if (runtime.truthy(runtime.opEq(_sym138, ({ type: "null" })))) {
+(runtime.setLine(368), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "could not find symbol '%' on line %" }), _ident137, _line133));
 };
-let r_137 = _sym;
-let r_138 = r_137.values[0];
-let _sym_type = r_138;
-let r_139 = r_137.values[1];
-let _sym_ident = r_139;
-let r_140 = r_137.values[2];
-if (runtime.opEq(_sym_type, ({ type: "string", value: "let" }))) {
-(runtime.setLine(303), _emit((runtime.setLine(303), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(_% = runtime.assignValue(" }), _sym_ident))));
-if (runtime.opEq(_id, ({ type: "string", value: "=" }))) {
-(runtime.setLine(305), _emit_expr(_expr));
+const r_170 = _sym138;
+const r_171 = r_170.values[0] ?? { type: "null"};
+let _sym_id139 = r_171;
+const r_172 = r_170.values[1] ?? { type: "null"};
+let _sym_type140 = r_172;
+const r_173 = r_170.values[2] ?? { type: "null"};
+let _sym_ident141 = r_173;
+const r_174 = r_170.values[3] ?? { type: "null"};
+if (runtime.truthy(runtime.opEq(_sym_type140, ({ type: "string", value: "let" })))) {
+(runtime.setLine(372), _emit39((runtime.setLine(372), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "(_%% = " }), _sym_ident141, _sym_id139))));
+if (runtime.truthy(runtime.opEq(_id134, ({ type: "string", value: "=" })))) {
+(runtime.setLine(374), _emit_expr33(_expr136));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "+" }))) {
-(runtime.setLine(307), _emit((runtime.setLine(307), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.opAdd(_%, " }), _sym_ident))));
-(runtime.setLine(308), _emit_expr(_expr));
-(runtime.setLine(309), _emit(({ type: "string", value: ")" })));
+if (runtime.truthy(runtime.opEq(_id134, ({ type: "string", value: "+" })))) {
+(runtime.setLine(376), _emit39((runtime.setLine(376), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.opAdd(_%%, " }), _sym_ident141, _sym_id139))));
+(runtime.setLine(377), _emit_expr33(_expr136));
+(runtime.setLine(378), _emit39(({ type: "string", value: ")" })));
 } else {
-if (runtime.opEq(_id, ({ type: "string", value: "-" }))) {
-(runtime.setLine(311), _emit((runtime.setLine(311), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.opSub(_%, " }), _sym_ident))));
-(runtime.setLine(312), _emit_expr(_expr));
-(runtime.setLine(313), _emit(({ type: "string", value: ")" })));
+if (runtime.truthy(runtime.opEq(_id134, ({ type: "string", value: "-" })))) {
+(runtime.setLine(380), _emit39((runtime.setLine(380), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.opSub(_%%, " }), _sym_ident141, _sym_id139))));
+(runtime.setLine(381), _emit_expr33(_expr136));
+(runtime.setLine(382), _emit39(({ type: "string", value: ")" })));
 } else {
-(runtime.setLine(315), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented" })));
+(runtime.setLine(384), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented" })));
 }}};
-(runtime.setLine(317), _emit(({ type: "string", value: "))" })));
+(runtime.setLine(386), _emit39(({ type: "string", value: ")" })));
 } else {
-(runtime.setLine(319), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "cannot assign to symbol '%' on line %" }), _sym_ident, _line));
+(runtime.setLine(388), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "cannot assign to symbol '%' on line %" }), _sym_ident141, _line133));
 };
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _emit_pat(_pat) {
-runtime.pushCall("emit_pat");
-let r_141 = _pat;
-let r_142 = r_141.values[0];
-let _ty = r_142;
-if (runtime.opEq(_ty, ({ type: "string", value: "ident" }))) {
-let r_143 = _pat;
-let r_144 = r_143.values[0];
-let r_145 = r_143.values[1];
-let _line = r_145;
-let r_146 = r_143.values[2];
-let _name = r_146;
-if (runtime.opEq(_name, ({ type: "string", value: "_" }))) {
-runtime.popCall();
-return { type: "null" };
-};
-(runtime.setLine(330), _emit((runtime.setLine(330), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%" }), _name))));
-(runtime.setLine(331), _define_sym(_name, ({ type: "list", values: [] })));
-} else {
-if (runtime.opEq(_ty, ({ type: "string", value: "list" }))) {
-let r_147 = _pat;
-let r_148 = r_147.values[0];
-let r_149 = r_147.values[1];
-let r_150 = r_147.values[2];
-let _pats = r_150;
-(runtime.setLine(334), _emit(({ type: "string", value: "[" })));
-let r_151 = ({ type: "bool", value: true });
-let _first = r_151;
-for (let _pat of _pats.values) {
-if (runtime.opNot(_first)) {
-(runtime.setLine(338), _emit(({ type: "string", value: ", " })));
-};
-(_335 = runtime.assignValue(({ type: "bool", value: false })));
-(runtime.setLine(342), _emit_pat(_pat));
-};
-(runtime.setLine(344), _emit(({ type: "string", value: "]" })));
-} else {
-(runtime.setLine(346), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "cannot assign to '%'" }), _pat));
-}};
-;
-runtime.popCall();
-return { type: "null" };
-};
-function _emit(_str) {
+function _emit39(_str142) {
 runtime.pushCall("emit");
-(runtime.setLine(351), ((...args) => runtime.builtinPush(...args))(_output, _str));
+(runtime.setLine(393), ((...args) => runtime.builtinPush(...args))(_output44, _str142));
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _define_builtin40(_ident143, _builtin_id144) {
+runtime.pushCall("define_builtin");
+const r_175 = (runtime.setLine(397), _sym_id_count52());
+let _sym_id145 = r_175;
+(runtime.setLine(398), _sym_id_increment53());
+(runtime.setLine(400), _define_sym47(_ident143, ({ type: "list", values: [_sym_id145, ({ type: "string", value: "builtin" }), _builtin_id144] })));
+runtime.popCall();
+return _sym_id145;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _define_fn41(_ident146, _line147) {
+runtime.pushCall("define_fn");
+const r_176 = (runtime.setLine(405), _sym_id_count52());
+let _sym_id148 = r_176;
+(runtime.setLine(406), _sym_id_increment53());
+(runtime.setLine(408), _define_sym47(_ident146, ({ type: "list", values: [_sym_id148, ({ type: "string", value: "fn" }), _ident146, _line147] })));
+runtime.popCall();
+return _sym_id148;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _define_param42(_ident149, _line150) {
+runtime.pushCall("define_param");
+const r_177 = (runtime.setLine(413), _sym_id_count52());
+let _sym_id151 = r_177;
+(runtime.setLine(414), _sym_id_increment53());
+(runtime.setLine(416), _define_sym47(_ident149, ({ type: "list", values: [_sym_id151, ({ type: "string", value: "param" }), _ident149, _line150] })));
+runtime.popCall();
+return _sym_id151;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _define_let43(_ident152, _line153) {
+runtime.pushCall("define_let");
+const r_178 = (runtime.setLine(421), _sym_id_count52());
+let _sym_id154 = r_178;
+(runtime.setLine(422), _sym_id_increment53());
+(runtime.setLine(424), _define_sym47(_ident152, ({ type: "list", values: [_sym_id154, ({ type: "string", value: "let" }), _ident152, _line153] })));
+runtime.popCall();
+return _sym_id154;
 ;
 runtime.popCall();
 return { type: "null" };
 };
 runtime.popCall();
-return ({ type: "list", values: [_generate] });
+return ({ type: "list", values: [_generate30] });
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _Counter() {
+function _Counter17() {
 runtime.pushCall("Counter");
-let r_152 = ({ type: "int", value: 0 });
-let _counter = r_152;
-function _count() {
+const r_179 = ({ type: "int", value: 0 });
+let _counter157 = r_179;
+function _count155() {
 runtime.pushCall("count");
 runtime.popCall();
-return _counter;
+return _counter157;
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _increment() {
+function _increment156() {
 runtime.pushCall("increment");
-(_358 = runtime.assignValue(runtime.opAdd(_358, ({ type: "int", value: 1 }))));
+(_counter157 = runtime.opAdd(_counter157, ({ type: "int", value: 1 })));
 ;
 runtime.popCall();
 return { type: "null" };
 };
 runtime.popCall();
-return ({ type: "list", values: [_count, _increment] });
+return ({ type: "list", values: [_count155, _increment156] });
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _Syms() {
+function _Syms18() {
 runtime.pushCall("Syms");
-let r_153 = ({ type: "list", values: [({ type: "null" }), ({ type: "list", values: [] })] });
-let _syms = r_153;
-function _enter_scope() {
+const r_180 = ({ type: "list", values: [({ type: "null" }), ({ type: "list", values: [] })] });
+let _syms165 = r_180;
+function _enter_scope158() {
 runtime.pushCall("enter_scope");
-(_372 = runtime.assignValue(({ type: "list", values: [_syms, ({ type: "list", values: [] })] })));
+(_syms165 = ({ type: "list", values: [_syms165, ({ type: "list", values: [] })] }));
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _leave_scope() {
+function _leave_scope159() {
 runtime.pushCall("leave_scope");
-let r_154 = _syms;
-let r_155 = r_154.values[0];
-let _parent = r_155;
-let r_156 = r_154.values[1];
-(_372 = runtime.assignValue(_parent));
+const r_181 = _syms165;
+const r_182 = r_181.values[0] ?? { type: "null"};
+let _parent166 = r_182;
+const r_183 = r_181.values[1] ?? { type: "null"};
+(_syms165 = _parent166);
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _define(_ident, _sym) {
+function _define160(_ident167, _sym168) {
 runtime.pushCall("define");
-let r_157 = _syms;
-let r_158 = r_157.values[0];
-let r_159 = r_157.values[1];
-let _syms = r_159;
-let r_160 = ({ type: "int", value: 0 });
-let _i = r_160;
+const r_184 = _syms165;
+const r_185 = r_184.values[0] ?? { type: "null"};
+const r_186 = r_184.values[1] ?? { type: "null"};
+let _map169 = r_186;
+const r_187 = ({ type: "int", value: 0 });
+let _i170 = r_187;
 while (true) {
-if (runtime.opGte(_i, (runtime.setLine(402), ((...args) => runtime.builtinLen(...args))(_syms)))) {
+if (runtime.truthy(runtime.opGte(_i170, (runtime.setLine(461), ((...args) => runtime.builtinLen(...args))(_map169))))) {
 break};
-let r_161 = (runtime.setLine(403), ((...args) => runtime.builtinAt(...args))(_syms, _i));
-let r_162 = r_161.values[0];
-let _s_ident = r_162;
-let r_163 = r_161.values[1];
-if (runtime.opEq(_ident, _s_ident)) {
-(runtime.setLine(405), ((...args) => runtime.builtinSet(...args))(_syms, _i, ({ type: "list", values: [_ident, _sym] })));
+const r_188 = (runtime.setLine(462), ((...args) => runtime.builtinAt(...args))(_map169, _i170));
+const r_189 = r_188.values[0] ?? { type: "null"};
+let _s_ident171 = r_189;
+const r_190 = r_188.values[1] ?? { type: "null"};
+if (runtime.truthy(runtime.opEq(_ident167, _s_ident171))) {
+(runtime.setLine(464), ((...args) => runtime.builtinSet(...args))(_map169, _i170, ({ type: "list", values: [_ident167, _sym168] })));
 runtime.popCall();
 return { type: "null" };
 };
-(_400 = runtime.assignValue(runtime.opAdd(_400, ({ type: "int", value: 1 }))));
+(_i170 = runtime.opAdd(_i170, ({ type: "int", value: 1 })));
 };
-(runtime.setLine(410), ((...args) => runtime.builtinPush(...args))(_syms, ({ type: "list", values: [_ident, _sym] })));
+(runtime.setLine(469), ((...args) => runtime.builtinPush(...args))(_map169, ({ type: "list", values: [_ident167, _sym168] })));
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _find_sym(_syms, _ident) {
+function _find_sym161(_syms172, _ident173) {
 runtime.pushCall("find_sym");
-let r_164 = _syms;
-let r_165 = r_164.values[0];
-let _parent = r_165;
-let r_166 = r_164.values[1];
-let _map = r_166;
-let r_167 = ({ type: "int", value: 0 });
-let _i = r_167;
+const r_191 = _syms172;
+const r_192 = r_191.values[0] ?? { type: "null"};
+let _parent174 = r_192;
+const r_193 = r_191.values[1] ?? { type: "null"};
+let _map175 = r_193;
+const r_194 = ({ type: "int", value: 0 });
+let _i176 = r_194;
 while (true) {
-if (runtime.opGte(_i, (runtime.setLine(417), ((...args) => runtime.builtinLen(...args))(_map)))) {
+if (runtime.truthy(runtime.opGte(_i176, (runtime.setLine(476), ((...args) => runtime.builtinLen(...args))(_map175))))) {
 break};
-let r_168 = (runtime.setLine(418), ((...args) => runtime.builtinAt(...args))(_map, _i));
-let r_169 = r_168.values[0];
-let _s_ident = r_169;
-let r_170 = r_168.values[1];
-let _s_sym = r_170;
-if (runtime.opEq(_ident, _s_ident)) {
+const r_195 = (runtime.setLine(477), ((...args) => runtime.builtinAt(...args))(_map175, _i176));
+const r_196 = r_195.values[0] ?? { type: "null"};
+let _s_ident177 = r_196;
+const r_197 = r_195.values[1] ?? { type: "null"};
+let _s_sym178 = r_197;
+if (runtime.truthy(runtime.opEq(_ident173, _s_ident177))) {
 runtime.popCall();
-return _s_sym;
+return _s_sym178;
 };
-(_415 = runtime.assignValue(runtime.opAdd(_415, ({ type: "int", value: 1 }))));
+(_i176 = runtime.opAdd(_i176, ({ type: "int", value: 1 })));
 };
-if (runtime.opNe(_parent, ({ type: "null" }))) {
+if (runtime.truthy(runtime.opNe(_parent174, ({ type: "null" })))) {
 runtime.popCall();
-return (runtime.setLine(425), _find_sym(_parent, _ident));
+return (runtime.setLine(484), _find_sym161(_parent174, _ident173));
 };
 runtime.popCall();
 return ({ type: "null" });
@@ -696,325 +773,329 @@ return ({ type: "null" });
 runtime.popCall();
 return { type: "null" };
 };
-function _get(_ident) {
+function _get162(_ident179) {
 runtime.pushCall("get");
 runtime.popCall();
-return (runtime.setLine(431), _find_sym(_syms, _ident));
+return (runtime.setLine(490), _find_sym161(_syms165, _ident179));
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _print_syms_node(_syms, _depth) {
+function _print_syms_node163(_syms180, _depth181) {
 runtime.pushCall("print_syms_node");
-let r_171 = _syms;
-let r_172 = r_171.values[0];
-let _parent = r_172;
-let r_173 = r_171.values[1];
-let _map = r_173;
-for (let [_ident, _sym] of _map.values) {
-(runtime.setLine(437), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%- %: %" }), (runtime.setLine(437), _indent(_depth)), _ident, _sym));
+const r_198 = _syms180;
+const r_199 = r_198.values[0] ?? { type: "null"};
+let _parent182 = r_199;
+const r_200 = r_198.values[1] ?? { type: "null"};
+let _map183 = r_200;
+for (const r_201 of _map183.values) {;
+const r_202 = r_201.values[0] ?? { type: "null"};
+let _ident184 = r_202;
+const r_203 = r_201.values[1] ?? { type: "null"};
+let _sym185 = r_203;
+(runtime.setLine(496), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%- %: %" }), (runtime.setLine(496), _indent25(_depth181)), _ident184, _sym185));
 };
-if (runtime.opNe(_parent, ({ type: "null" }))) {
-(runtime.setLine(440), _print_syms_node(_parent, runtime.opAdd(_depth, ({ type: "int", value: 1 }))));
+if (runtime.truthy(runtime.opNe(_parent182, ({ type: "null" })))) {
+(runtime.setLine(499), _print_syms_node163(_parent182, runtime.opAdd(_depth181, ({ type: "int", value: 1 }))));
 };
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _print_syms() {
+function _print_syms164() {
 runtime.pushCall("print_syms");
-(runtime.setLine(445), _print_syms_node(_syms, ({ type: "int", value: 0 })));
+(runtime.setLine(504), _print_syms_node163(_syms165, ({ type: "int", value: 0 })));
 ;
 runtime.popCall();
 return { type: "null" };
 };
 runtime.popCall();
-return ({ type: "list", values: [_enter_scope, _leave_scope, _define, _get, _print_syms] });
+return ({ type: "list", values: [_enter_scope158, _leave_scope159, _define160, _get162, _print_syms164] });
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _string_escape(_str) {
+function _string_escape19(_str186) {
 runtime.pushCall("string_escape");
-let r_174 = (runtime.setLine(459), ((...args) => runtime.builtinLen(...args))(_str));
-let _str_len = r_174;
-let r_175 = ({ type: "int", value: 0 });
-let _i = r_175;
-let r_176 = ({ type: "string", value: "" });
-let _result = r_176;
+const r_204 = (runtime.setLine(518), ((...args) => runtime.builtinLen(...args))(_str186));
+let _str_len187 = r_204;
+const r_205 = ({ type: "int", value: 0 });
+let _i188 = r_205;
+const r_206 = ({ type: "string", value: "" });
+let _result189 = r_206;
 while (true) {
-if (runtime.opGte(_i, _str_len)) {
+if (runtime.truthy(runtime.opGte(_i188, _str_len187))) {
 break};
-let r_177 = (runtime.setLine(464), ((...args) => runtime.builtinAt(...args))(_str, _i));
-let _ch = r_177;
-if (runtime.opEq(_ch, ({ type: "string", value: "\\" }))) {
-(_461 = runtime.assignValue(runtime.opAdd(_461, ({ type: "string", value: "\\\\" }))));
+const r_207 = (runtime.setLine(523), ((...args) => runtime.builtinAt(...args))(_str186, _i188));
+let _ch190 = r_207;
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\\" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\\\" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "\"" }))) {
-(_461 = runtime.assignValue(runtime.opAdd(_461, ({ type: "string", value: "\\\"" }))));
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\"" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\\"" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "\t" }))) {
-(_461 = runtime.assignValue(runtime.opAdd(_461, ({ type: "string", value: "\\t" }))));
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\t" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\t" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "\r" }))) {
-(_461 = runtime.assignValue(runtime.opAdd(_461, ({ type: "string", value: "\\r" }))));
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\r" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\r" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "\n" }))) {
-(_461 = runtime.assignValue(runtime.opAdd(_461, ({ type: "string", value: "\\n" }))));
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\n" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\n" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "\n" }))) {
-(_461 = runtime.assignValue(runtime.opAdd(_461, ({ type: "string", value: "\\0" }))));
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\n" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\0" })));
 } else {
-(_461 = runtime.assignValue(runtime.opAdd(_461, _ch)));
+(_result189 = runtime.opAdd(_result189, _ch190));
 }}}}}};
-(_460 = runtime.assignValue(runtime.opAdd(_460, ({ type: "int", value: 1 }))));
+(_i188 = runtime.opAdd(_i188, ({ type: "int", value: 1 })));
 };
 runtime.popCall();
-return _result;
+return _result189;
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _Parser(_tokens) {
+function _Parser20(_tokens191) {
 runtime.pushCall("Parser");
-let r_178 = ({ type: "int", value: 0 });
-let _i = r_178;
-let r_179 = (runtime.setLine(487), ((...args) => runtime.builtinAt(...args))(_tokens, _i));
-let _tok = r_179;
-function _parse() {
+const r_208 = ({ type: "int", value: 0 });
+let _i198 = r_208;
+const r_209 = (runtime.setLine(546), ((...args) => runtime.builtinAt(...args))(_tokens191, _i198));
+let _tok199 = r_209;
+function _parse192() {
 runtime.pushCall("parse");
-let r_180 = ({ type: "list", values: [] });
-let _exprs = r_180;
+const r_210 = ({ type: "list", values: [] });
+let _exprs200 = r_210;
 while (true) {
-if ((runtime.setLine(492), _done())) {
+if (runtime.truthy((runtime.setLine(551), _done197()))) {
 break};
-(runtime.setLine(493), ((...args) => runtime.builtinPush(...args))(_exprs, (runtime.setLine(493), _parse_expr())));
+(runtime.setLine(552), ((...args) => runtime.builtinPush(...args))(_exprs200, (runtime.setLine(552), _parse_expr193())));
 };
 runtime.popCall();
-return _exprs;
+return _exprs200;
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _parse_expr() {
+function _parse_expr193() {
 runtime.pushCall("parse_expr");
-let r_181 = _tok;
-let r_182 = r_181.values[0];
-let _ty = r_182;
-let r_183 = r_181.values[1];
-let _line = r_183;
-let r_184 = r_181.values[2];
-let _value = r_184;
-if ((runtime.setLine(500), _eat(({ type: "string", value: "(" })))) {
-let r_185 = ({ type: "list", values: [] });
-let _values = r_185;
+const r_211 = _tok199;
+const r_212 = r_211.values[0] ?? { type: "null"};
+let _ty201 = r_212;
+const r_213 = r_211.values[1] ?? { type: "null"};
+let _line202 = r_213;
+const r_214 = r_211.values[2] ?? { type: "null"};
+let _value203 = r_214;
+if (runtime.truthy((runtime.setLine(559), _eat194(({ type: "string", value: "(" }))))) {
+const r_215 = ({ type: "list", values: [] });
+let _values204 = r_215;
 while (true) {
-if ((runtime.setLine(503), _test(({ type: "string", value: ")" })))) {
+if (runtime.truthy((runtime.setLine(562), _test196(({ type: "string", value: ")" }))))) {
 break};
-(runtime.setLine(504), ((...args) => runtime.builtinPush(...args))(_values, (runtime.setLine(504), _parse_expr())));
+(runtime.setLine(563), ((...args) => runtime.builtinPush(...args))(_values204, (runtime.setLine(563), _parse_expr193())));
 };
-if (runtime.opNot((runtime.setLine(506), _eat(({ type: "string", value: ")" }))))) {
-(runtime.setLine(507), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected ')' on line %" }), (runtime.setLine(507), ((...args) => runtime.builtinAt(...args))(_tok, ({ type: "int", value: 1 })))));
+if (runtime.truthy(runtime.opNot((runtime.setLine(565), _eat194(({ type: "string", value: ")" })))))) {
+(runtime.setLine(566), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected ')' on line %" }), (runtime.setLine(566), ((...args) => runtime.builtinAt(...args))(_tok199, ({ type: "int", value: 1 })))));
 };
 runtime.popCall();
-return ({ type: "list", values: [] });
+return ({ type: "list", values: [({ type: "string", value: "list" }), _line202, _values204] });
 } else {
-if ((runtime.setLine(510), _eat(({ type: "string", value: "string" })))) {
+if (runtime.truthy((runtime.setLine(569), _eat194(({ type: "string", value: "string" }))))) {
 runtime.popCall();
-return ({ type: "list", values: [] });
+return ({ type: "list", values: [({ type: "string", value: "string" }), _line202, _value203] });
 } else {
-if ((runtime.setLine(512), _eat(({ type: "string", value: "int" })))) {
+if (runtime.truthy((runtime.setLine(571), _eat194(({ type: "string", value: "int" }))))) {
 runtime.popCall();
-return ({ type: "list", values: [] });
+return ({ type: "list", values: [({ type: "string", value: "int" }), _line202, (runtime.setLine(572), ((...args) => runtime.builtinStringToInt(...args))(_value203))] });
 } else {
-if ((runtime.setLine(514), _eat(({ type: "string", value: "ident" })))) {
+if (runtime.truthy((runtime.setLine(573), _eat194(({ type: "string", value: "ident" }))))) {
 runtime.popCall();
-return ({ type: "list", values: [] });
+return ({ type: "list", values: [({ type: "string", value: "ident" }), _line202, _value203] });
 } else {
-(runtime.setLine(517), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected expression, got '%' on line %" }), _ty, _line));
+(runtime.setLine(576), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected expression, got '%' on line %" }), _ty201, _line202));
 }}}};
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _eat(_pat) {
+function _eat194(_pat205) {
 runtime.pushCall("eat");
-if (runtime.opNot((runtime.setLine(522), _test(_pat)))) {
+if (runtime.truthy(runtime.opNot((runtime.setLine(581), _test196(_pat205))))) {
 runtime.popCall();
 return ({ type: "bool", value: false })};
-(runtime.setLine(523), _step());
+(runtime.setLine(582), _step195());
 runtime.popCall();
 return ({ type: "bool", value: true });
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _step() {
+function _step195() {
 runtime.pushCall("step");
-(_486 = runtime.assignValue(runtime.opAdd(_486, ({ type: "int", value: 1 }))));
-if (runtime.opNot((runtime.setLine(529), _done()))) {
-let r_186 = (runtime.setLine(530), ((...args) => runtime.builtinAt(...args))(_tokens, _i));
-let _new_tok = r_186;
-(_487 = runtime.assignValue(_new_tok));
+(_i198 = runtime.opAdd(_i198, ({ type: "int", value: 1 })));
+if (runtime.truthy(runtime.opNot((runtime.setLine(588), _done197())))) {
+const r_216 = (runtime.setLine(589), ((...args) => runtime.builtinAt(...args))(_tokens191, _i198));
+let _new_tok206 = r_216;
+(_tok199 = _new_tok206);
 };
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _test(_pat) {
+function _test196(_pat207) {
 runtime.pushCall("test");
-if ((runtime.setLine(536), _done())) {
+if (runtime.truthy((runtime.setLine(595), _done197()))) {
 runtime.popCall();
 return ({ type: "bool", value: false })};
-let r_187 = _tok;
-let r_188 = r_187.values[0];
-let _ty = r_188;
+const r_217 = _tok199;
+const r_218 = r_217.values[0] ?? { type: "null"};
+let _ty208 = r_218;
 runtime.popCall();
-return runtime.opEq(_pat, _ty);
+return runtime.opEq(_pat207, _ty208);
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _done() {
+function _done197() {
 runtime.pushCall("done");
 runtime.popCall();
-return runtime.opGte(_i, (runtime.setLine(542), ((...args) => runtime.builtinLen(...args))(_tokens)));
+return runtime.opGte(_i198, (runtime.setLine(601), ((...args) => runtime.builtinLen(...args))(_tokens191)));
 ;
 runtime.popCall();
 return { type: "null" };
 };
 runtime.popCall();
-return ({ type: "list", values: [_parse] });
+return ({ type: "list", values: [_parse192] });
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _tokenize(_text) {
+function _tokenize21(_text209) {
 runtime.pushCall("tokenize");
-let r_189 = (runtime.setLine(549), ((...args) => runtime.builtinLen(...args))(_text));
-let _text_len = r_189;
-let r_190 = ({ type: "list", values: [] });
-let _tokens = r_190;
-let r_191 = ({ type: "int", value: 0 });
-let _i = r_191;
-let r_192 = ({ type: "int", value: 1 });
-let _line = r_192;
-let r_193 = runtime.opAdd(({ type: "string", value: "abcdefghijklmnopqrstuvwxyz" }), ({ type: "string", value: "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890+-*/%&|=?!<>'_" }));
-let _ident_chars = r_193;
+const r_219 = (runtime.setLine(608), ((...args) => runtime.builtinLen(...args))(_text209));
+let _text_len210 = r_219;
+const r_220 = ({ type: "list", values: [] });
+let _tokens211 = r_220;
+const r_221 = ({ type: "int", value: 0 });
+let _i212 = r_221;
+const r_222 = ({ type: "int", value: 1 });
+let _line213 = r_222;
+const r_223 = runtime.opAdd(({ type: "string", value: "abcdefghijklmnopqrstuvwxyz" }), ({ type: "string", value: "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890+-*/%&|=?!<>'_" }));
+let _ident_chars214 = r_223;
 while (true) {
-if (runtime.opGte(_i, _text_len)) {
+if (runtime.truthy(runtime.opGte(_i212, _text_len210))) {
 break};
-let r_194 = (runtime.setLine(561), ((...args) => runtime.builtinAt(...args))(_text, _i));
-let _ch = r_194;
-if ((runtime.setLine(563), _contains(({ type: "string", value: " \t\r\n" }), _ch))) {
-if (runtime.opEq(_ch, ({ type: "string", value: "\n" }))) {
-(_553 = runtime.assignValue(runtime.opAdd(_553, ({ type: "int", value: 1 }))));
+const r_224 = (runtime.setLine(620), ((...args) => runtime.builtinAt(...args))(_text209, _i212));
+let _ch215 = r_224;
+if (runtime.truthy((runtime.setLine(622), _contains22(({ type: "string", value: " \t\r\n" }), _ch215)))) {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\n" })))) {
+(_line213 = runtime.opAdd(_line213, ({ type: "int", value: 1 })));
 };
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
 } else {
-if ((runtime.setLine(568), _slice_eq(_text, _i, ({ type: "string", value: "//" })))) {
+if (runtime.truthy((runtime.setLine(627), _slice_eq23(_text209, _i212, ({ type: "string", value: "//" }))))) {
 while (true) {
-if ((runtime.setLine(570), { type: "bool", value: this.runtime.truthy(runtime.opGte(_i, _text_len)) || this.runtime.falsy(runtime.opEq((runtime.setLine(570), ((...args) => runtime.builtinAt(...args))(_text, _i)), ({ type: "string", value: "\n" }))) })) {
+if (runtime.truthy((runtime.setLine(629), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opEq((runtime.setLine(629), ((...args) => runtime.builtinAt(...args))(_text209, _i212)), ({ type: "string", value: "\n" }))) }))) {
 break;
 };
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
 };
 } else {
-if ((runtime.setLine(575), _contains(({ type: "string", value: "()" }), _ch))) {
-(runtime.setLine(576), ((...args) => runtime.builtinPush(...args))(_tokens, ({ type: "list", values: [_ch, _line] })));
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
+if (runtime.truthy((runtime.setLine(634), _contains22(({ type: "string", value: "()" }), _ch215)))) {
+(runtime.setLine(635), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [_ch215, _line213] })));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "\"" }))) {
-let r_195 = ({ type: "string", value: "" });
-let _value = r_195;
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
-(_561 = runtime.assignValue((runtime.setLine(581), ((...args) => runtime.builtinAt(...args))(_text, _i))));
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\"" })))) {
+const r_225 = ({ type: "string", value: "" });
+let _value216 = r_225;
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+(_ch215 = (runtime.setLine(640), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
 while (true) {
-if ((runtime.setLine(583), { type: "bool", value: this.runtime.truthy(runtime.opGte(_i, _text_len)) || this.runtime.falsy(runtime.opEq(_ch, ({ type: "string", value: "\"" }))) })) {
+if (runtime.truthy((runtime.setLine(642), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\"" }))) }))) {
 break;
 };
-if (runtime.opEq(_ch, ({ type: "string", value: "\\" }))) {
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
-if (runtime.opGte(_i, _text_len)) {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\\" })))) {
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+if (runtime.truthy(runtime.opGte(_i212, _text_len210))) {
 break;
 };
-(_561 = runtime.assignValue((runtime.setLine(591), ((...args) => runtime.builtinAt(...args))(_text, _i))));
-if (runtime.opEq(_ch, ({ type: "string", value: "t" }))) {
-(_579 = runtime.assignValue(runtime.opAdd(_579, ({ type: "string", value: "\t" }))));
+(_ch215 = (runtime.setLine(650), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "t" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\t" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "r" }))) {
-(_579 = runtime.assignValue(runtime.opAdd(_579, ({ type: "string", value: "\r" }))));
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "r" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\r" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "n" }))) {
-(_579 = runtime.assignValue(runtime.opAdd(_579, ({ type: "string", value: "\n" }))));
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "n" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\n" })));
 } else {
-if (runtime.opEq(_ch, ({ type: "string", value: "0" }))) {
-(_579 = runtime.assignValue(runtime.opAdd(_579, ({ type: "string", value: "\n" }))));
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "0" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\n" })));
 } else {
-(_579 = runtime.assignValue(runtime.opAdd(_579, _ch)));
+(_value216 = runtime.opAdd(_value216, _ch215));
 }}}};
 } else {
-(_579 = runtime.assignValue(runtime.opAdd(_579, _ch)));
+(_value216 = runtime.opAdd(_value216, _ch215));
 };
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
-(_561 = runtime.assignValue((runtime.setLine(607), ((...args) => runtime.builtinAt(...args))(_text, _i))));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+(_ch215 = (runtime.setLine(666), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
 };
-if ((runtime.setLine(609), { type: "bool", value: this.runtime.truthy(runtime.opGte(_i, _text_len)) || this.runtime.falsy(runtime.opNe(_ch, ({ type: "string", value: "\"" }))) })) {
-(runtime.setLine(610), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected '\"' on line %" }), _line));
+if (runtime.truthy((runtime.setLine(668), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opNe(_ch215, ({ type: "string", value: "\"" }))) }))) {
+(runtime.setLine(669), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected '\"' on line %" }), _line213));
 };
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
-(runtime.setLine(613), ((...args) => runtime.builtinPush(...args))(_tokens, ({ type: "list", values: [] })));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+(runtime.setLine(672), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [({ type: "string", value: "string" }), _line213, _value216] })));
 } else {
-if ((runtime.setLine(614), _contains(({ type: "string", value: "0123456789" }), _ch))) {
-let r_196 = ({ type: "string", value: "" });
-let _value = r_196;
+if (runtime.truthy((runtime.setLine(673), _contains22(({ type: "string", value: "0123456789" }), _ch215)))) {
+const r_226 = ({ type: "string", value: "" });
+let _value217 = r_226;
 while (true) {
-(_561 = runtime.assignValue((runtime.setLine(617), ((...args) => runtime.builtinAt(...args))(_text, _i))));
-if ((runtime.setLine(618), { type: "bool", value: this.runtime.truthy(runtime.opGte(_i, _text_len)) || this.runtime.falsy(runtime.opNot((runtime.setLine(618), _contains(({ type: "string", value: "0123456789" }), _ch)))) })) {
+(_ch215 = (runtime.setLine(676), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+if (runtime.truthy((runtime.setLine(677), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opNot((runtime.setLine(677), _contains22(({ type: "string", value: "0123456789" }), _ch215)))) }))) {
 break;
 };
-(_615 = runtime.assignValue(runtime.opAdd(_615, _ch)));
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
+(_value217 = runtime.opAdd(_value217, _ch215));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
 };
-(runtime.setLine(624), ((...args) => runtime.builtinPush(...args))(_tokens, ({ type: "list", values: [] })));
+(runtime.setLine(683), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [({ type: "string", value: "int" }), _line213, _value217] })));
 } else {
-if ((runtime.setLine(625), _contains(_ident_chars, _ch))) {
-let r_197 = ({ type: "string", value: "" });
-let _value = r_197;
+if (runtime.truthy((runtime.setLine(684), _contains22(_ident_chars214, _ch215)))) {
+const r_227 = ({ type: "string", value: "" });
+let _value218 = r_227;
 while (true) {
-(_561 = runtime.assignValue((runtime.setLine(628), ((...args) => runtime.builtinAt(...args))(_text, _i))));
-if ((runtime.setLine(629), { type: "bool", value: this.runtime.truthy(runtime.opGte(_i, _text_len)) || this.runtime.falsy(runtime.opNot((runtime.setLine(629), _contains(_ident_chars, _ch)))) })) {
+(_ch215 = (runtime.setLine(687), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+if (runtime.truthy((runtime.setLine(688), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opNot((runtime.setLine(688), _contains22(_ident_chars214, _ch215)))) }))) {
 break;
 };
-(_626 = runtime.assignValue(runtime.opAdd(_626, _ch)));
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
+(_value218 = runtime.opAdd(_value218, _ch215));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
 };
-(runtime.setLine(635), ((...args) => runtime.builtinPush(...args))(_tokens, ({ type: "list", values: [] })));
+(runtime.setLine(694), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [({ type: "string", value: "ident" }), _line213, _value218] })));
 } else {
-(runtime.setLine(637), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "illegal char '%'" }), _ch));
-(_552 = runtime.assignValue(runtime.opAdd(_552, ({ type: "int", value: 1 }))));
+(runtime.setLine(696), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "illegal char '%'" }), _ch215));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
 }}}}}};
 };
 runtime.popCall();
-return _tokens;
+return _tokens211;
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _contains(_text, _ch) {
+function _contains22(_text219, _ch220) {
 runtime.pushCall("contains");
-let r_198 = (runtime.setLine(645), ((...args) => runtime.builtinLen(...args))(_text));
-let _text_len = r_198;
-let r_199 = ({ type: "int", value: 0 });
-let _i = r_199;
+const r_228 = (runtime.setLine(704), ((...args) => runtime.builtinLen(...args))(_text219));
+let _text_len221 = r_228;
+const r_229 = ({ type: "int", value: 0 });
+let _i222 = r_229;
 while (true) {
-if (runtime.opGte(_i, _text_len)) {
+if (runtime.truthy(runtime.opGte(_i222, _text_len221))) {
 break};
-if (runtime.opEq((runtime.setLine(649), ((...args) => runtime.builtinAt(...args))(_text, _i)), _ch)) {
+if (runtime.truthy(runtime.opEq((runtime.setLine(708), ((...args) => runtime.builtinAt(...args))(_text219, _i222)), _ch220))) {
 runtime.popCall();
 return ({ type: "bool", value: true });
 };
-(_646 = runtime.assignValue(runtime.opAdd(_646, ({ type: "int", value: 1 }))));
+(_i222 = runtime.opAdd(_i222, ({ type: "int", value: 1 })));
 };
 runtime.popCall();
 return ({ type: "bool", value: false });
@@ -1022,25 +1103,25 @@ return ({ type: "bool", value: false });
 runtime.popCall();
 return { type: "null" };
 };
-function _slice_eq(_str, _slice_idx, _substr) {
+function _slice_eq23(_str223, _slice_idx224, _substr225) {
 runtime.pushCall("slice_eq");
-let r_200 = (runtime.setLine(658), ((...args) => runtime.builtinLen(...args))(_str));
-let _str_len = r_200;
-let r_201 = (runtime.setLine(659), ((...args) => runtime.builtinLen(...args))(_substr));
-let _substr_len = r_201;
-let r_202 = ({ type: "int", value: 0 });
-let _i = r_202;
+const r_230 = (runtime.setLine(717), ((...args) => runtime.builtinLen(...args))(_str223));
+let _str_len226 = r_230;
+const r_231 = (runtime.setLine(718), ((...args) => runtime.builtinLen(...args))(_substr225));
+let _substr_len227 = r_231;
+const r_232 = ({ type: "int", value: 0 });
+let _i228 = r_232;
 while (true) {
-if (runtime.opGte(_i, _substr_len)) {
+if (runtime.truthy(runtime.opGte(_i228, _substr_len227))) {
 runtime.popCall();
 return ({ type: "bool", value: true })};
-if (runtime.opGte(runtime.opAdd(_slice_idx, _i), _str_len)) {
+if (runtime.truthy(runtime.opGte(runtime.opAdd(_slice_idx224, _i228), _str_len226))) {
 runtime.popCall();
 return ({ type: "bool", value: false })};
-if (runtime.opNe((runtime.setLine(666), ((...args) => runtime.builtinAt(...args))(_str, runtime.opAdd(_slice_idx, _i))), (runtime.setLine(666), ((...args) => runtime.builtinAt(...args))(_substr, _i)))) {
+if (runtime.truthy(runtime.opNe((runtime.setLine(725), ((...args) => runtime.builtinAt(...args))(_str223, runtime.opAdd(_slice_idx224, _i228))), (runtime.setLine(725), ((...args) => runtime.builtinAt(...args))(_substr225, _i228))))) {
 runtime.popCall();
 return ({ type: "bool", value: false })};
-(_660 = runtime.assignValue(runtime.opAdd(_660, ({ type: "int", value: 1 }))));
+(_i228 = runtime.opAdd(_i228, ({ type: "int", value: 1 })));
 };
 runtime.popCall();
 return ({ type: "bool", value: true });
@@ -1048,103 +1129,100 @@ return ({ type: "bool", value: true });
 runtime.popCall();
 return { type: "null" };
 };
-function _print_expr(_expr, _depth) {
+function _print_expr24(_expr229, _depth230) {
 runtime.pushCall("print_expr");
-let r_203 = _expr;
-let r_204 = r_203.values[0];
-let _ty = r_204;
-let r_205 = r_203.values[1];
-let _line = r_205;
-let r_206 = r_203.values[2];
-let _value = r_206;
-if (runtime.opEq(_ty, ({ type: "string", value: "list" }))) {
-(runtime.setLine(676), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%(% %" }), (runtime.setLine(676), _indent(_depth)), _ty, _line));
-for (let _e of _value.values) {
-(runtime.setLine(678), _print_expr(_e, runtime.opAdd(_depth, ({ type: "int", value: 1 }))));
+const r_233 = _expr229;
+const r_234 = r_233.values[0] ?? { type: "null"};
+let _ty231 = r_234;
+const r_235 = r_233.values[1] ?? { type: "null"};
+let _line232 = r_235;
+const r_236 = r_233.values[2] ?? { type: "null"};
+let _value233 = r_236;
+if (runtime.truthy(runtime.opEq(_ty231, ({ type: "string", value: "list" })))) {
+(runtime.setLine(735), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%(% %" }), (runtime.setLine(735), _indent25(_depth230)), _ty231, _line232));
+for (const r_237 of _value233.values) {;
+let _e234 = r_237;
+(runtime.setLine(737), _print_expr24(_e234, runtime.opAdd(_depth230, ({ type: "int", value: 1 }))));
 };
-(runtime.setLine(680), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%)" }), (runtime.setLine(680), _indent(_depth))));
+(runtime.setLine(739), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%)" }), (runtime.setLine(739), _indent25(_depth230))));
 } else {
-(runtime.setLine(682), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%%" }), (runtime.setLine(682), _indent(_depth)), _expr));
+(runtime.setLine(741), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%%" }), (runtime.setLine(741), _indent25(_depth230)), _expr229));
 };
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _indent(_depth) {
+function _indent25(_depth235) {
 runtime.pushCall("indent");
-let r_207 = ({ type: "string", value: "" });
-let _space = r_207;
-let r_208 = ({ type: "int", value: 0 });
-let _i = r_208;
+const r_238 = ({ type: "string", value: "" });
+let _space236 = r_238;
+const r_239 = ({ type: "int", value: 0 });
+let _i237 = r_239;
 while (true) {
-if (runtime.opGte(_i, _depth)) {
+if (runtime.truthy(runtime.opGte(_i237, _depth235))) {
 break};
-(_687 = runtime.assignValue(runtime.opAdd(_687, ({ type: "string", value: "  " }))));
-(_688 = runtime.assignValue(runtime.opAdd(_688, ({ type: "int", value: 1 }))));
+(_space236 = runtime.opAdd(_space236, ({ type: "string", value: "  " })));
+(_i237 = runtime.opAdd(_i237, ({ type: "int", value: 1 })));
 };
 runtime.popCall();
-return _space;
+return _space236;
 ;
 runtime.popCall();
 return { type: "null" };
 };
-function _slice(_list, _idx) {
+function _slice26(_list238, _idx239) {
 runtime.pushCall("slice");
-let r_209 = (runtime.setLine(698), ((...args) => runtime.builtinLen(...args))(_list));
-let _list_len = r_209;
-let r_210 = ({ type: "list", values: [] });
-let _elems = r_210;
-let r_211 = _idx;
-let _i = r_211;
+const r_240 = (runtime.setLine(757), ((...args) => runtime.builtinLen(...args))(_list238));
+let _list_len240 = r_240;
+const r_241 = ({ type: "list", values: [] });
+let _elems241 = r_241;
+const r_242 = _idx239;
+let _i242 = r_242;
 while (true) {
-if (runtime.opGte(_i, _list_len)) {
+if (runtime.truthy(runtime.opGte(_i242, _list_len240))) {
 break};
-(runtime.setLine(703), ((...args) => runtime.builtinPush(...args))(_elems, (runtime.setLine(703), ((...args) => runtime.builtinAt(...args))(_list, _i))));
-(_700 = runtime.assignValue(runtime.opAdd(_700, ({ type: "int", value: 1 }))));
+(runtime.setLine(762), ((...args) => runtime.builtinPush(...args))(_elems241, (runtime.setLine(762), ((...args) => runtime.builtinAt(...args))(_list238, _i242))));
+(_i242 = runtime.opAdd(_i242, ({ type: "int", value: 1 })));
 };
 runtime.popCall();
-return _elems;
+return _elems241;
 ;
 runtime.popCall();
 return { type: "null" };
 };
-let r_212 = ({ type: "bool", value: true });
-let _silent = r_212;
-let r_213 = (runtime.setLine(711), ((...args) => runtime.builtinGetArgs(...args))());
-let r_214 = r_213.values[0];
-let _input_filename = r_214;
-let r_215 = r_213.values[1];
-let _output_filename = r_215;
-if (runtime.opNot(_silent)) {
-(runtime.setLine(713), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "reading file..." })))};
-let r_216 = (runtime.setLine(714), ((...args) => runtime.builtinReadTextFile(...args))(_input_filename));
-let _text = r_216;
-(runtime.setLine(716), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "=== text ===" })));
-(runtime.setLine(718), ((...args) => runtime.builtinPrintln(...args))((runtime.setLine(718), ((...args) => runtime.builtinLen(...args))(_text))));
-if (runtime.opNot(_silent)) {
-(runtime.setLine(720), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "tokenizing..." })))};
-let r_217 = (runtime.setLine(721), _tokenize(_text));
-let _tokens = r_217;
-(runtime.setLine(723), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "=== tokens ===" })));
-(runtime.setLine(727), ((...args) => runtime.builtinPrintln(...args))((runtime.setLine(727), ((...args) => runtime.builtinLen(...args))(_tokens))));
-if (runtime.opNot(_silent)) {
-(runtime.setLine(729), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "parsing..." })))};
-let r_218 = (runtime.setLine(730), _Parser(_tokens));
-let _parser = r_218;
-let r_219 = _parser;
-let r_220 = r_219.values[0];
-let _parse = r_220;
-let r_221 = (runtime.setLine(732), _parse());
-let _ast = r_221;
-if (runtime.opNot(_silent)) {
-(runtime.setLine(739), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "emitting..." })))};
-let r_222 = (runtime.setLine(740), _Emitter(_ast, _input_filename));
-let _emitter = r_222;
-let r_223 = _emitter;
-let r_224 = r_223.values[0];
-let _emit = r_224;
-let r_225 = (runtime.setLine(742), _emit());
-let _js_code = r_225;
-if (runtime.opNot(_silent)) {
-(runtime.setLine(747), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "writing file..." })))};
-(runtime.setLine(748), ((...args) => runtime.builtinWriteTextFile(...args))(_output_filename, _js_code));
+const r_243 = ({ type: "bool", value: false });
+let _silent243 = r_243;
+const r_244 = (runtime.setLine(770), ((...args) => runtime.builtinGetArgs(...args))());
+const r_245 = r_244.values[0] ?? { type: "null"};
+let _input_filename244 = r_245;
+const r_246 = r_244.values[1] ?? { type: "null"};
+let _output_filename245 = r_246;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(772), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "reading file '%'..." }), _input_filename244))};
+const r_247 = (runtime.setLine(773), ((...args) => runtime.builtinReadTextFile(...args))(_input_filename244));
+let _text246 = r_247;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(779), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "tokenizing..." })))};
+const r_248 = (runtime.setLine(780), _tokenize21(_text246));
+let _tokens247 = r_248;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(793), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "parsing..." })))};
+const r_249 = (runtime.setLine(794), _Parser20(_tokens247));
+let _parser248 = r_249;
+const r_250 = _parser248;
+const r_251 = r_250.values[0] ?? { type: "null"};
+let _parse249 = r_251;
+const r_252 = (runtime.setLine(796), _parse249());
+let _ast250 = r_252;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(803), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "emitting..." })))};
+const r_253 = (runtime.setLine(804), _Emitter16(_ast250, _input_filename244));
+let _emitter251 = r_253;
+const r_254 = _emitter251;
+const r_255 = r_254.values[0] ?? { type: "null"};
+let _emit252 = r_255;
+const r_256 = (runtime.setLine(806), _emit252());
+let _js_code253 = r_256;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(811), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "writing file '%'..." }), _output_filename245))};
+(runtime.setLine(812), ((...args) => runtime.builtinWriteTextFile(...args))(_output_filename245, _js_code253));
diff --git a/stage2.js b/stage2.js
index 5274bff..be32485 100644
--- a/stage2.js
+++ b/stage2.js
@@ -1,3 +1,1228 @@
 #!/usr/bin/env node
-import { Runtime } from "./runtime.js"
-const runtime = new Runtime("compile.phi")
+import { Runtime } from "./runtime.js";
+const runtime = new Runtime({ filename: "compile.phi" });
+let _is_phi_compiler14 = { type: "bool", value: true };
+function _dbg15(_msg27) {
+runtime.pushCall("dbg");
+if (runtime.truthy(_is_phi_compiler14)) {
+(runtime.setLine(4), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "dbg: %" }), _msg27));
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _Emitter16(_ast28, _filename29) {
+runtime.pushCall("Emitter");
+const r_0 = ({ type: "list", values: [] });
+let _output44 = r_0;
+const r_1 = (runtime.setLine(11), _Syms18());
+const r_2 = r_1.values[0] ?? { type: "null"};
+let _enter_scope45 = r_2;
+const r_3 = r_1.values[1] ?? { type: "null"};
+let _leave_scope46 = r_3;
+const r_4 = r_1.values[2] ?? { type: "null"};
+let _define_sym47 = r_4;
+const r_5 = r_1.values[3] ?? { type: "null"};
+let _get_sym48 = r_5;
+const r_6 = r_1.values[4] ?? { type: "null"};
+let _print_syms49 = r_6;
+const r_7 = (runtime.setLine(13), _Counter17());
+const r_8 = r_7.values[0] ?? { type: "null"};
+let _let_node_reg_count50 = r_8;
+const r_9 = r_7.values[1] ?? { type: "null"};
+let _let_node_reg_increment51 = r_9;
+const r_10 = (runtime.setLine(14), _Counter17());
+const r_11 = r_10.values[0] ?? { type: "null"};
+let _sym_id_count52 = r_11;
+const r_12 = r_10.values[1] ?? { type: "null"};
+let _sym_id_increment53 = r_12;
+const r_13 = ({ type: "list", values: [({ type: "list", values: [({ type: "string", value: "format" }), ({ type: "string", value: "builtinFormat" })] }), ({ type: "list", values: [({ type: "string", value: "print" }), ({ type: "string", value: "builtinPrint" })] }), ({ type: "list", values: [({ type: "string", value: "println" }), ({ type: "string", value: "builtinPrintln" })] }), ({ type: "list", values: [({ type: "string", value: "panic" }), ({ type: "string", value: "builtinPanic" })] }), ({ type: "list", values: [({ type: "string", value: "read_text_file" }), ({ type: "string", value: "builtinReadTextFile" })] }), ({ type: "list", values: [({ type: "string", value: "write_text_file" }), ({ type: "string", value: "builtinWriteTextFile" })] }), ({ type: "list", values: [({ type: "string", value: "push" }), ({ type: "string", value: "builtinPush" })] }), ({ type: "list", values: [({ type: "string", value: "at" }), ({ type: "string", value: "builtinAt" })] }), ({ type: "list", values: [({ type: "string", value: "set" }), ({ type: "string", value: "builtinSet" })] }), ({ type: "list", values: [({ type: "string", value: "len" }), ({ type: "string", value: "builtinLen" })] }), ({ type: "list", values: [({ type: "string", value: "string_to_int" }), ({ type: "string", value: "builtinStringToInt" })] }), ({ type: "list", values: [({ type: "string", value: "char_code" }), ({ type: "string", value: "builtinCharCode" })] }), ({ type: "list", values: [({ type: "string", value: "strings_join" }), ({ type: "string", value: "builtinStringsJoin" })] }), ({ type: "list", values: [({ type: "string", value: "get_args" }), ({ type: "string", value: "builtinGetArgs" })] })] });
+let _builtin_syms54 = r_13;
+function _generate30() {
+runtime.pushCall("generate");
+(runtime.setLine(34), _emit39(({ type: "string", value: "#!/usr/bin/env node\n" })));
+(runtime.setLine(35), _emit39(({ type: "string", value: "import { Runtime } from \"./runtime.js\";\n" })));
+(runtime.setLine(36), _emit39(({ type: "string", value: "const runtime = new Runtime({ filename: \"" })));
+(runtime.setLine(37), _emit39(_filename29));
+(runtime.setLine(38), _emit39(({ type: "string", value: "\" });\n" })));
+for (const r_14 of _builtin_syms54.values) {;
+const r_15 = r_14.values[0] ?? { type: "null"};
+let _ident55 = r_15;
+const r_16 = r_14.values[1] ?? { type: "null"};
+let _builtin_id56 = r_16;
+(runtime.setLine(41), _define_builtin40(_ident55, _builtin_id56));
+};
+const r_17 = (runtime.setLine(44), _define_let43(({ type: "string", value: "is_phi_compiler" }), ({ type: "int", value: 0 })));
+let _is_phi_compiler_sym_id57 = r_17;
+(runtime.setLine(45), _emit39((runtime.setLine(45), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "let _is_phi_compiler% = { type: \"bool\", value: true };\n" }), _is_phi_compiler_sym_id57))));
+(runtime.setLine(50), _discover_syms32(_ast28));
+(runtime.setLine(51), _emit_exprs31(_ast28));
+runtime.popCall();
+return (runtime.setLine(52), ((...args) => runtime.builtinStringsJoin(...args))(_output44));
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _emit_exprs31(_exprs58) {
+runtime.pushCall("emit_exprs");
+for (const r_18 of _exprs58.values) {;
+let _expr59 = r_18;
+(runtime.setLine(57), _emit_expr33(_expr59));
+(runtime.setLine(58), _emit39(({ type: "string", value: ";\n" })));
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _discover_syms32(_exprs60) {
+runtime.pushCall("discover_syms");
+for (const r_19 of _exprs60.values) {;
+let _expr61 = r_19;
+const r_20 = _expr61;
+const r_21 = r_20.values[0] ?? { type: "null"};
+let _ty62 = r_21;
+const r_22 = r_20.values[1] ?? { type: "null"};
+let _line63 = r_22;
+if (runtime.truthy(runtime.opNe(_ty62, ({ type: "string", value: "list" })))) {
+runtime.popCall();
+return { type: "null" }};
+const r_23 = _expr61;
+const r_24 = r_23.values[0] ?? { type: "null"};
+const r_25 = r_23.values[1] ?? { type: "null"};
+const r_26 = r_23.values[2] ?? { type: "null"};
+let _s64 = r_26;
+if (runtime.truthy(runtime.opEq((runtime.setLine(67), ((...args) => runtime.builtinLen(...args))(_s64)), ({ type: "int", value: 0 })))) {
+runtime.popCall();
+return { type: "null" }};
+const r_27 = _s64;
+const r_28 = r_27.values[0] ?? { type: "null"};
+const r_29 = r_28.values[0] ?? { type: "null"};
+const r_30 = r_28.values[1] ?? { type: "null"};
+const r_31 = r_28.values[2] ?? { type: "null"};
+let _id65 = r_31;
+if (runtime.truthy(runtime.opEq(_id65, ({ type: "string", value: "fn" })))) {
+const r_32 = _s64;
+const r_33 = r_32.values[0] ?? { type: "null"};
+const r_34 = r_32.values[1] ?? { type: "null"};
+const r_35 = r_34.values[0] ?? { type: "null"};
+const r_36 = r_34.values[1] ?? { type: "null"};
+const r_37 = r_34.values[2] ?? { type: "null"};
+let _ident66 = r_37;
+const r_38 = r_32.values[2] ?? { type: "null"};
+const r_39 = r_38.values[0] ?? { type: "null"};
+const r_40 = r_38.values[1] ?? { type: "null"};
+const r_41 = r_38.values[2] ?? { type: "null"};
+let _params67 = r_41;
+const r_42 = r_32.values[3] ?? { type: "null"};
+let _body68 = r_42;
+(runtime.setLine(71), _define_fn41(_ident66, _line63));
+};
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _emit_expr33(_expr69) {
+runtime.pushCall("emit_expr");
+const r_43 = _expr69;
+const r_44 = r_43.values[0] ?? { type: "null"};
+let _ty70 = r_44;
+const r_45 = r_43.values[1] ?? { type: "null"};
+let _line71 = r_45;
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "list" })))) {
+(runtime.setLine(79), _emit_list34(_expr69));
+} else {
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "int" })))) {
+const r_46 = _expr69;
+const r_47 = r_46.values[0] ?? { type: "null"};
+const r_48 = r_46.values[1] ?? { type: "null"};
+const r_49 = r_46.values[2] ?? { type: "null"};
+let _value72 = r_49;
+(runtime.setLine(82), _emit39((runtime.setLine(82), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "({ type: \"int\", value: % })" }), _value72))));
+} else {
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "string" })))) {
+const r_50 = _expr69;
+const r_51 = r_50.values[0] ?? { type: "null"};
+const r_52 = r_50.values[1] ?? { type: "null"};
+const r_53 = r_50.values[2] ?? { type: "null"};
+let _value73 = r_53;
+(runtime.setLine(85), _emit39((runtime.setLine(85), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "({ type: \"string\", value: \"%\" })" }), (runtime.setLine(85), _string_escape19(_value73))))));
+} else {
+if (runtime.truthy(runtime.opEq(_ty70, ({ type: "string", value: "ident" })))) {
+const r_54 = _expr69;
+const r_55 = r_54.values[0] ?? { type: "null"};
+const r_56 = r_54.values[1] ?? { type: "null"};
+const r_57 = r_54.values[2] ?? { type: "null"};
+let _value74 = r_57;
+if (runtime.truthy(runtime.opEq(_value74, ({ type: "string", value: "null" })))) {
+(runtime.setLine(90), _emit39(({ type: "string", value: "({ type: \"null\" })" })));
+runtime.popCall();
+return { type: "null" };
+} else {
+if (runtime.truthy(runtime.opEq(_value74, ({ type: "string", value: "false" })))) {
+(runtime.setLine(93), _emit39(({ type: "string", value: "({ type: \"bool\", value: false })" })));
+runtime.popCall();
+return { type: "null" };
+} else {
+if (runtime.truthy(runtime.opEq(_value74, ({ type: "string", value: "true" })))) {
+(runtime.setLine(96), _emit39(({ type: "string", value: "({ type: \"bool\", value: true })" })));
+runtime.popCall();
+return { type: "null" };
+}}};
+const r_58 = (runtime.setLine(100), _get_sym48(_value74));
+let _sym75 = r_58;
+if (runtime.truthy(runtime.opEq(_sym75, ({ type: "null" })))) {
+(runtime.setLine(102), _print_syms49());
+(runtime.setLine(103), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "undefined symbol '%' on line %" }), _value74, _line71));
+};
+const r_59 = _sym75;
+const r_60 = r_59.values[0] ?? { type: "null"};
+let _sym_id76 = r_60;
+const r_61 = r_59.values[1] ?? { type: "null"};
+let _sym_ty77 = r_61;
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "builtin" })))) {
+const r_62 = _sym75;
+const r_63 = r_62.values[0] ?? { type: "null"};
+const r_64 = r_62.values[1] ?? { type: "null"};
+const r_65 = r_62.values[2] ?? { type: "null"};
+let _id78 = r_65;
+(runtime.setLine(109), _emit39((runtime.setLine(109), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "((...args) => runtime.%(...args))" }), _id78))));
+} else {
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "fn" })))) {
+(runtime.setLine(111), _emit39((runtime.setLine(111), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _value74, _sym_id76))));
+} else {
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "param" })))) {
+(runtime.setLine(113), _emit39((runtime.setLine(113), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _value74, _sym_id76))));
+} else {
+if (runtime.truthy(runtime.opEq(_sym_ty77, ({ type: "string", value: "let" })))) {
+(runtime.setLine(115), _emit39((runtime.setLine(115), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _value74, _sym_id76))));
+} else {
+(runtime.setLine(117), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "not implemented '%'" }), _sym_ty77));
+}}}};
+} else {
+(runtime.setLine(120), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "unknown expr type '%' on line %" }), _ty70, _line71));
+}}}};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _emit_list34(_expr79) {
+runtime.pushCall("emit_list");
+const r_66 = _expr79;
+const r_67 = r_66.values[0] ?? { type: "null"};
+let _ty80 = r_67;
+const r_68 = r_66.values[1] ?? { type: "null"};
+let _line81 = r_68;
+const r_69 = r_66.values[2] ?? { type: "null"};
+let _s82 = r_69;
+if (runtime.truthy(runtime.opEq((runtime.setLine(126), ((...args) => runtime.builtinLen(...args))(_s82)), ({ type: "int", value: 0 })))) {
+(runtime.setLine(127), _emit39(({ type: "string", value: "({ type: \"list\", values: [] })" })));
+runtime.popCall();
+return { type: "null" };
+};
+const r_70 = _s82;
+const r_71 = r_70.values[0] ?? { type: "null"};
+const r_72 = r_71.values[0] ?? { type: "null"};
+let _id_ty83 = r_72;
+const r_73 = r_71.values[1] ?? { type: "null"};
+const r_74 = r_71.values[2] ?? { type: "null"};
+let _id84 = r_74;
+if (runtime.truthy(runtime.opNe(_id_ty83, ({ type: "string", value: "ident" })))) {
+(runtime.setLine(132), _emit_list_literal35(_s82));
+runtime.popCall();
+return { type: "null" };
+};
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "fn" })))) {
+const r_75 = _s82;
+const r_76 = r_75.values[0] ?? { type: "null"};
+const r_77 = r_75.values[1] ?? { type: "null"};
+const r_78 = r_77.values[0] ?? { type: "null"};
+const r_79 = r_77.values[1] ?? { type: "null"};
+const r_80 = r_77.values[2] ?? { type: "null"};
+let _ident85 = r_80;
+const r_81 = r_75.values[2] ?? { type: "null"};
+const r_82 = r_81.values[0] ?? { type: "null"};
+const r_83 = r_81.values[1] ?? { type: "null"};
+const r_84 = r_81.values[2] ?? { type: "null"};
+let _params86 = r_84;
+const r_85 = r_75.values[3] ?? { type: "null"};
+let _body87 = r_85;
+const r_86 = (runtime.setLine(138), _get_sym48(_ident85));
+let _sym88 = r_86;
+const r_87 = _sym88;
+const r_88 = r_87.values[0] ?? { type: "null"};
+let _sym_id89 = r_88;
+(runtime.setLine(141), _emit39((runtime.setLine(141), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "function _%%(" }), _ident85, _sym_id89))));
+(runtime.setLine(143), _enter_scope45());
+const r_89 = ({ type: "bool", value: true });
+let _first90 = r_89;
+for (const r_90 of _params86.values) {;
+const r_91 = r_90.values[0] ?? { type: "null"};
+const r_92 = r_90.values[1] ?? { type: "null"};
+const r_93 = r_90.values[2] ?? { type: "null"};
+let _ident91 = r_93;
+if (runtime.truthy(runtime.opNot(_first90))) {
+(runtime.setLine(148), _emit39(({ type: "string", value: ", " })));
+};
+(_first90 = ({ type: "bool", value: false }));
+const r_94 = (runtime.setLine(152), _define_param42(_ident91, _line81));
+let _sym_id92 = r_94;
+(runtime.setLine(153), _emit39((runtime.setLine(153), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "_%%" }), _ident91, _sym_id92))));
+};
+(runtime.setLine(157), _emit39(({ type: "string", value: ") {\n" })));
+(runtime.setLine(158), _emit39((runtime.setLine(158), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "runtime.pushCall(\"%\");\n" }), _ident85))));
+(runtime.setLine(160), _emit_expr33(_body87));
+(runtime.setLine(161), _emit39(({ type: "string", value: ";\nruntime.popCall();\nreturn { type: \"null\" };\n}" })));
+(runtime.setLine(163), _leave_scope46());
+} else {
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "let" })))) {
+const r_95 = _s82;
+const r_96 = r_95.values[0] ?? { type: "null"};
+const r_97 = r_95.values[1] ?? { type: "null"};
+let _pat93 = r_97;
+const r_98 = r_95.values[2] ?? { type: "null"};
+let _expr94 = r_98;
+const r_99 = (runtime.setLine(166), _let_node_reg_count50());
+let _reg95 = r_99;
+(runtime.setLine(167), _let_node_reg_increment51());
+(runtime.setLine(168), _emit39((runtime.setLine(168), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "const r_% = " }), _reg95))));
+(runtime.setLine(169), _emit_expr33(_expr94));
+(runtime.setLine(170), _emit_let_node36(_pat93, _reg95));
+} else {
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "do" })))) {
+(runtime.setLine(172), _enter_scope45());
+(runtime.setLine(173), _discover_syms32((runtime.setLine(173), _slice26(_s82, ({ type: "int", value: 1 })))));
+(runtime.setLine(174), _emit_exprs31((runtime.setLine(174), _slice26(_s82, ({ type: "int", value: 1 })))));
+(runtime.setLine(175), _leave_scope46());
+} else {
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "for" })))) {
+const r_100 = _s82;
+const r_101 = r_100.values[0] ?? { type: "null"};
+const r_102 = r_100.values[1] ?? { type: "null"};
+let _pat96 = r_102;
+const r_103 = r_100.values[2] ?? { type: "null"};
+let _expr97 = r_103;
+const r_104 = r_100.values[3] ?? { type: "null"};
+let _body98 = r_104;
+const r_105 = (runtime.setLine(179), _let_node_reg_count50());
+let _reg99 = r_105;
+(runtime.setLine(180), _let_node_reg_increment51());
+(runtime.setLine(181), _emit39((runtime.setLine(181), ((...args) => runtime.builtinFormat(...args))(({ type: "string", value: "for (const r_% of " }), _reg99))));
+(runtime.setLine(182), _emit_expr33(_expr97));
+(runtime.setLine(183), _emit39(({ type: "string", value: ".values) {" })));
+(runtime.setLine(185), _enter_scope45());
+(runtime.setLine(186), _emit_let_node36(_pat96, _reg99));
+(runtime.setLine(187), _enter_scope45());
+(runtime.setLine(189), _emit39(({ type: "string", value: ";\n" })));
+(runtime.setLine(190), _emit_expr33(_body98));
+(runtime.setLine(191), _emit39(({ type: "string", value: "}" })));
+(runtime.setLine(193), _leave_scope46());
+(runtime.setLine(194), _leave_scope46());
+} else {
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "loop" })))) {
+const r_106 = _s82;
+const r_107 = r_106.values[0] ?? { type: "null"};
+const r_108 = r_106.values[1] ?? { type: "null"};
+let _body100 = r_108;
+(runtime.setLine(197), _emit39(({ type: "string", value: "while (true) {\n" })));
+(runtime.setLine(198), _emit_expr33(_body100));
+(runtime.setLine(199), _emit39(({ type: "string", value: "}" })));
+} else {
+if (runtime.truthy(runtime.opEq(_id84, ({ type: "string", value: "if" })))) {
+const r_109 = _s82;
+const r_110 = r_109.values[0] ?? { type: "null"};
+const r_111 = r_109.values[1] ?? { type: "null"};
+let _cond101 = r_111;
+const r_112 = r_109.values[2] ?? { type: "null"};
+let _truthy102 = r_112;
+const r_113 = r_109.values[3] ?? { type: "null"};
+let _falsy103 = r_113;
+(runtime.setLine(202), _emit39(({ type: "string", value: "if (runtime.truthy(" })));
+(runtime.setLine(203), _emit_expr33(_cond101));
+(runtime.setLine(204), _emit39(({ type: "string", value: ")) {\n" })));
+(runtime.setLine(205), _emit_expr33(_truthy102));
+(runtime.setLine(206), _emit39(({ type: "string", value: "}" })));
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+} else {
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+} else {
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+} else {
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+} else {
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+runtime.popCall();
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+;
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+};
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+;
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+};
+function _Syms18() {
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+const r_180 = ({ type: "list", values: [({ type: "null" }), ({ type: "list", values: [] })] });
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+function _enter_scope158() {
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+};
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+(_i176 = runtime.opAdd(_i176, ({ type: "int", value: 1 })));
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+function _get162(_ident179) {
+runtime.pushCall("get");
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+return (runtime.setLine(490), _find_sym161(_syms165, _ident179));
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _print_syms_node163(_syms180, _depth181) {
+runtime.pushCall("print_syms_node");
+const r_198 = _syms180;
+const r_199 = r_198.values[0] ?? { type: "null"};
+let _parent182 = r_199;
+const r_200 = r_198.values[1] ?? { type: "null"};
+let _map183 = r_200;
+for (const r_201 of _map183.values) {;
+const r_202 = r_201.values[0] ?? { type: "null"};
+let _ident184 = r_202;
+const r_203 = r_201.values[1] ?? { type: "null"};
+let _sym185 = r_203;
+(runtime.setLine(496), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%- %: %" }), (runtime.setLine(496), _indent25(_depth181)), _ident184, _sym185));
+};
+if (runtime.truthy(runtime.opNe(_parent182, ({ type: "null" })))) {
+(runtime.setLine(499), _print_syms_node163(_parent182, runtime.opAdd(_depth181, ({ type: "int", value: 1 }))));
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _print_syms164() {
+runtime.pushCall("print_syms");
+(runtime.setLine(504), _print_syms_node163(_syms165, ({ type: "int", value: 0 })));
+;
+runtime.popCall();
+return { type: "null" };
+};
+runtime.popCall();
+return ({ type: "list", values: [_enter_scope158, _leave_scope159, _define160, _get162, _print_syms164] });
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _string_escape19(_str186) {
+runtime.pushCall("string_escape");
+const r_204 = (runtime.setLine(518), ((...args) => runtime.builtinLen(...args))(_str186));
+let _str_len187 = r_204;
+const r_205 = ({ type: "int", value: 0 });
+let _i188 = r_205;
+const r_206 = ({ type: "string", value: "" });
+let _result189 = r_206;
+while (true) {
+if (runtime.truthy(runtime.opGte(_i188, _str_len187))) {
+break};
+const r_207 = (runtime.setLine(523), ((...args) => runtime.builtinAt(...args))(_str186, _i188));
+let _ch190 = r_207;
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\\" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\\\" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\"" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\\"" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\t" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\t" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\r" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\r" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\n" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\n" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch190, ({ type: "string", value: "\n" })))) {
+(_result189 = runtime.opAdd(_result189, ({ type: "string", value: "\\0" })));
+} else {
+(_result189 = runtime.opAdd(_result189, _ch190));
+}}}}}};
+(_i188 = runtime.opAdd(_i188, ({ type: "int", value: 1 })));
+};
+runtime.popCall();
+return _result189;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _Parser20(_tokens191) {
+runtime.pushCall("Parser");
+const r_208 = ({ type: "int", value: 0 });
+let _i198 = r_208;
+const r_209 = (runtime.setLine(546), ((...args) => runtime.builtinAt(...args))(_tokens191, _i198));
+let _tok199 = r_209;
+function _parse192() {
+runtime.pushCall("parse");
+const r_210 = ({ type: "list", values: [] });
+let _exprs200 = r_210;
+while (true) {
+if (runtime.truthy((runtime.setLine(551), _done197()))) {
+break};
+(runtime.setLine(552), ((...args) => runtime.builtinPush(...args))(_exprs200, (runtime.setLine(552), _parse_expr193())));
+};
+runtime.popCall();
+return _exprs200;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _parse_expr193() {
+runtime.pushCall("parse_expr");
+const r_211 = _tok199;
+const r_212 = r_211.values[0] ?? { type: "null"};
+let _ty201 = r_212;
+const r_213 = r_211.values[1] ?? { type: "null"};
+let _line202 = r_213;
+const r_214 = r_211.values[2] ?? { type: "null"};
+let _value203 = r_214;
+if (runtime.truthy((runtime.setLine(559), _eat194(({ type: "string", value: "(" }))))) {
+const r_215 = ({ type: "list", values: [] });
+let _values204 = r_215;
+while (true) {
+if (runtime.truthy((runtime.setLine(562), _test196(({ type: "string", value: ")" }))))) {
+break};
+(runtime.setLine(563), ((...args) => runtime.builtinPush(...args))(_values204, (runtime.setLine(563), _parse_expr193())));
+};
+if (runtime.truthy(runtime.opNot((runtime.setLine(565), _eat194(({ type: "string", value: ")" })))))) {
+(runtime.setLine(566), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected ')' on line %" }), (runtime.setLine(566), ((...args) => runtime.builtinAt(...args))(_tok199, ({ type: "int", value: 1 })))));
+};
+runtime.popCall();
+return ({ type: "list", values: [({ type: "string", value: "list" }), _line202, _values204] });
+} else {
+if (runtime.truthy((runtime.setLine(569), _eat194(({ type: "string", value: "string" }))))) {
+runtime.popCall();
+return ({ type: "list", values: [({ type: "string", value: "string" }), _line202, _value203] });
+} else {
+if (runtime.truthy((runtime.setLine(571), _eat194(({ type: "string", value: "int" }))))) {
+runtime.popCall();
+return ({ type: "list", values: [({ type: "string", value: "int" }), _line202, (runtime.setLine(572), ((...args) => runtime.builtinStringToInt(...args))(_value203))] });
+} else {
+if (runtime.truthy((runtime.setLine(573), _eat194(({ type: "string", value: "ident" }))))) {
+runtime.popCall();
+return ({ type: "list", values: [({ type: "string", value: "ident" }), _line202, _value203] });
+} else {
+(runtime.setLine(576), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected expression, got '%' on line %" }), _ty201, _line202));
+}}}};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _eat194(_pat205) {
+runtime.pushCall("eat");
+if (runtime.truthy(runtime.opNot((runtime.setLine(581), _test196(_pat205))))) {
+runtime.popCall();
+return ({ type: "bool", value: false })};
+(runtime.setLine(582), _step195());
+runtime.popCall();
+return ({ type: "bool", value: true });
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _step195() {
+runtime.pushCall("step");
+(_i198 = runtime.opAdd(_i198, ({ type: "int", value: 1 })));
+if (runtime.truthy(runtime.opNot((runtime.setLine(588), _done197())))) {
+const r_216 = (runtime.setLine(589), ((...args) => runtime.builtinAt(...args))(_tokens191, _i198));
+let _new_tok206 = r_216;
+(_tok199 = _new_tok206);
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _test196(_pat207) {
+runtime.pushCall("test");
+if (runtime.truthy((runtime.setLine(595), _done197()))) {
+runtime.popCall();
+return ({ type: "bool", value: false })};
+const r_217 = _tok199;
+const r_218 = r_217.values[0] ?? { type: "null"};
+let _ty208 = r_218;
+runtime.popCall();
+return runtime.opEq(_pat207, _ty208);
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _done197() {
+runtime.pushCall("done");
+runtime.popCall();
+return runtime.opGte(_i198, (runtime.setLine(601), ((...args) => runtime.builtinLen(...args))(_tokens191)));
+;
+runtime.popCall();
+return { type: "null" };
+};
+runtime.popCall();
+return ({ type: "list", values: [_parse192] });
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _tokenize21(_text209) {
+runtime.pushCall("tokenize");
+const r_219 = (runtime.setLine(608), ((...args) => runtime.builtinLen(...args))(_text209));
+let _text_len210 = r_219;
+const r_220 = ({ type: "list", values: [] });
+let _tokens211 = r_220;
+const r_221 = ({ type: "int", value: 0 });
+let _i212 = r_221;
+const r_222 = ({ type: "int", value: 1 });
+let _line213 = r_222;
+const r_223 = runtime.opAdd(({ type: "string", value: "abcdefghijklmnopqrstuvwxyz" }), ({ type: "string", value: "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890+-*/%&|=?!<>'_" }));
+let _ident_chars214 = r_223;
+while (true) {
+if (runtime.truthy(runtime.opGte(_i212, _text_len210))) {
+break};
+const r_224 = (runtime.setLine(620), ((...args) => runtime.builtinAt(...args))(_text209, _i212));
+let _ch215 = r_224;
+if (runtime.truthy((runtime.setLine(622), _contains22(({ type: "string", value: " \t\r\n" }), _ch215)))) {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\n" })))) {
+(_line213 = runtime.opAdd(_line213, ({ type: "int", value: 1 })));
+};
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+} else {
+if (runtime.truthy((runtime.setLine(627), _slice_eq23(_text209, _i212, ({ type: "string", value: "//" }))))) {
+while (true) {
+if (runtime.truthy((runtime.setLine(629), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opEq((runtime.setLine(629), ((...args) => runtime.builtinAt(...args))(_text209, _i212)), ({ type: "string", value: "\n" }))) }))) {
+break;
+};
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+};
+} else {
+if (runtime.truthy((runtime.setLine(634), _contains22(({ type: "string", value: "()" }), _ch215)))) {
+(runtime.setLine(635), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [_ch215, _line213] })));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\"" })))) {
+const r_225 = ({ type: "string", value: "" });
+let _value216 = r_225;
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+(_ch215 = (runtime.setLine(640), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+while (true) {
+if (runtime.truthy((runtime.setLine(642), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\"" }))) }))) {
+break;
+};
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "\\" })))) {
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+if (runtime.truthy(runtime.opGte(_i212, _text_len210))) {
+break;
+};
+(_ch215 = (runtime.setLine(650), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "t" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\t" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "r" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\r" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "n" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\n" })));
+} else {
+if (runtime.truthy(runtime.opEq(_ch215, ({ type: "string", value: "0" })))) {
+(_value216 = runtime.opAdd(_value216, ({ type: "string", value: "\n" })));
+} else {
+(_value216 = runtime.opAdd(_value216, _ch215));
+}}}};
+} else {
+(_value216 = runtime.opAdd(_value216, _ch215));
+};
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+(_ch215 = (runtime.setLine(666), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+};
+if (runtime.truthy((runtime.setLine(668), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opNe(_ch215, ({ type: "string", value: "\"" }))) }))) {
+(runtime.setLine(669), ((...args) => runtime.builtinPanic(...args))(({ type: "string", value: "expected '\"' on line %" }), _line213));
+};
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+(runtime.setLine(672), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [({ type: "string", value: "string" }), _line213, _value216] })));
+} else {
+if (runtime.truthy((runtime.setLine(673), _contains22(({ type: "string", value: "0123456789" }), _ch215)))) {
+const r_226 = ({ type: "string", value: "" });
+let _value217 = r_226;
+while (true) {
+(_ch215 = (runtime.setLine(676), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+if (runtime.truthy((runtime.setLine(677), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opNot((runtime.setLine(677), _contains22(({ type: "string", value: "0123456789" }), _ch215)))) }))) {
+break;
+};
+(_value217 = runtime.opAdd(_value217, _ch215));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+};
+(runtime.setLine(683), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [({ type: "string", value: "int" }), _line213, _value217] })));
+} else {
+if (runtime.truthy((runtime.setLine(684), _contains22(_ident_chars214, _ch215)))) {
+const r_227 = ({ type: "string", value: "" });
+let _value218 = r_227;
+while (true) {
+(_ch215 = (runtime.setLine(687), ((...args) => runtime.builtinAt(...args))(_text209, _i212)));
+if (runtime.truthy((runtime.setLine(688), { type: "bool", value: runtime.truthy(runtime.opGte(_i212, _text_len210)) || runtime.truthy(runtime.opNot((runtime.setLine(688), _contains22(_ident_chars214, _ch215)))) }))) {
+break;
+};
+(_value218 = runtime.opAdd(_value218, _ch215));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+};
+(runtime.setLine(694), ((...args) => runtime.builtinPush(...args))(_tokens211, ({ type: "list", values: [({ type: "string", value: "ident" }), _line213, _value218] })));
+} else {
+(runtime.setLine(696), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "illegal char '%'" }), _ch215));
+(_i212 = runtime.opAdd(_i212, ({ type: "int", value: 1 })));
+}}}}}};
+};
+runtime.popCall();
+return _tokens211;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _contains22(_text219, _ch220) {
+runtime.pushCall("contains");
+const r_228 = (runtime.setLine(704), ((...args) => runtime.builtinLen(...args))(_text219));
+let _text_len221 = r_228;
+const r_229 = ({ type: "int", value: 0 });
+let _i222 = r_229;
+while (true) {
+if (runtime.truthy(runtime.opGte(_i222, _text_len221))) {
+break};
+if (runtime.truthy(runtime.opEq((runtime.setLine(708), ((...args) => runtime.builtinAt(...args))(_text219, _i222)), _ch220))) {
+runtime.popCall();
+return ({ type: "bool", value: true });
+};
+(_i222 = runtime.opAdd(_i222, ({ type: "int", value: 1 })));
+};
+runtime.popCall();
+return ({ type: "bool", value: false });
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _slice_eq23(_str223, _slice_idx224, _substr225) {
+runtime.pushCall("slice_eq");
+const r_230 = (runtime.setLine(717), ((...args) => runtime.builtinLen(...args))(_str223));
+let _str_len226 = r_230;
+const r_231 = (runtime.setLine(718), ((...args) => runtime.builtinLen(...args))(_substr225));
+let _substr_len227 = r_231;
+const r_232 = ({ type: "int", value: 0 });
+let _i228 = r_232;
+while (true) {
+if (runtime.truthy(runtime.opGte(_i228, _substr_len227))) {
+runtime.popCall();
+return ({ type: "bool", value: true })};
+if (runtime.truthy(runtime.opGte(runtime.opAdd(_slice_idx224, _i228), _str_len226))) {
+runtime.popCall();
+return ({ type: "bool", value: false })};
+if (runtime.truthy(runtime.opNe((runtime.setLine(725), ((...args) => runtime.builtinAt(...args))(_str223, runtime.opAdd(_slice_idx224, _i228))), (runtime.setLine(725), ((...args) => runtime.builtinAt(...args))(_substr225, _i228))))) {
+runtime.popCall();
+return ({ type: "bool", value: false })};
+(_i228 = runtime.opAdd(_i228, ({ type: "int", value: 1 })));
+};
+runtime.popCall();
+return ({ type: "bool", value: true });
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _print_expr24(_expr229, _depth230) {
+runtime.pushCall("print_expr");
+const r_233 = _expr229;
+const r_234 = r_233.values[0] ?? { type: "null"};
+let _ty231 = r_234;
+const r_235 = r_233.values[1] ?? { type: "null"};
+let _line232 = r_235;
+const r_236 = r_233.values[2] ?? { type: "null"};
+let _value233 = r_236;
+if (runtime.truthy(runtime.opEq(_ty231, ({ type: "string", value: "list" })))) {
+(runtime.setLine(735), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%(% %" }), (runtime.setLine(735), _indent25(_depth230)), _ty231, _line232));
+for (const r_237 of _value233.values) {;
+let _e234 = r_237;
+(runtime.setLine(737), _print_expr24(_e234, runtime.opAdd(_depth230, ({ type: "int", value: 1 }))));
+};
+(runtime.setLine(739), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%)" }), (runtime.setLine(739), _indent25(_depth230))));
+} else {
+(runtime.setLine(741), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "%%" }), (runtime.setLine(741), _indent25(_depth230)), _expr229));
+};
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _indent25(_depth235) {
+runtime.pushCall("indent");
+const r_238 = ({ type: "string", value: "" });
+let _space236 = r_238;
+const r_239 = ({ type: "int", value: 0 });
+let _i237 = r_239;
+while (true) {
+if (runtime.truthy(runtime.opGte(_i237, _depth235))) {
+break};
+(_space236 = runtime.opAdd(_space236, ({ type: "string", value: "  " })));
+(_i237 = runtime.opAdd(_i237, ({ type: "int", value: 1 })));
+};
+runtime.popCall();
+return _space236;
+;
+runtime.popCall();
+return { type: "null" };
+};
+function _slice26(_list238, _idx239) {
+runtime.pushCall("slice");
+const r_240 = (runtime.setLine(757), ((...args) => runtime.builtinLen(...args))(_list238));
+let _list_len240 = r_240;
+const r_241 = ({ type: "list", values: [] });
+let _elems241 = r_241;
+const r_242 = _idx239;
+let _i242 = r_242;
+while (true) {
+if (runtime.truthy(runtime.opGte(_i242, _list_len240))) {
+break};
+(runtime.setLine(762), ((...args) => runtime.builtinPush(...args))(_elems241, (runtime.setLine(762), ((...args) => runtime.builtinAt(...args))(_list238, _i242))));
+(_i242 = runtime.opAdd(_i242, ({ type: "int", value: 1 })));
+};
+runtime.popCall();
+return _elems241;
+;
+runtime.popCall();
+return { type: "null" };
+};
+const r_243 = ({ type: "bool", value: false });
+let _silent243 = r_243;
+const r_244 = (runtime.setLine(770), ((...args) => runtime.builtinGetArgs(...args))());
+const r_245 = r_244.values[0] ?? { type: "null"};
+let _input_filename244 = r_245;
+const r_246 = r_244.values[1] ?? { type: "null"};
+let _output_filename245 = r_246;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(772), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "reading file '%'..." }), _input_filename244))};
+const r_247 = (runtime.setLine(773), ((...args) => runtime.builtinReadTextFile(...args))(_input_filename244));
+let _text246 = r_247;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(779), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "tokenizing..." })))};
+const r_248 = (runtime.setLine(780), _tokenize21(_text246));
+let _tokens247 = r_248;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(793), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "parsing..." })))};
+const r_249 = (runtime.setLine(794), _Parser20(_tokens247));
+let _parser248 = r_249;
+const r_250 = _parser248;
+const r_251 = r_250.values[0] ?? { type: "null"};
+let _parse249 = r_251;
+const r_252 = (runtime.setLine(796), _parse249());
+let _ast250 = r_252;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(803), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "emitting..." })))};
+const r_253 = (runtime.setLine(804), _Emitter16(_ast250, _input_filename244));
+let _emitter251 = r_253;
+const r_254 = _emitter251;
+const r_255 = r_254.values[0] ?? { type: "null"};
+let _emit252 = r_255;
+const r_256 = (runtime.setLine(806), _emit252());
+let _js_code253 = r_256;
+if (runtime.truthy(runtime.opNot(_silent243))) {
+(runtime.setLine(811), ((...args) => runtime.builtinPrintln(...args))(({ type: "string", value: "writing file '%'..." }), _output_filename245))};
+(runtime.setLine(812), ((...args) => runtime.builtinWriteTextFile(...args))(_output_filename245, _js_code253));