43 lines
1.1 KiB
TypeScript
43 lines
1.1 KiB
TypeScript
import * as ast from "./ast.ts";
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import * as front from "./front/mod.ts";
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import * as middle from "./middle.ts";
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import { MirInterpreter } from "./mir_interpreter.ts";
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const filename = Deno.args[0];
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const text = await Deno.readTextFile(filename);
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const fileAst = front.parse(filename, text);
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const resols = front.resolve(filename, text, fileAst);
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const checker = new front.Checker(filename, text, fileAst, resols);
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let mainFn: ast.NodeWithKind<"FnStmt"> | null = null;
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fileAst.visit({
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visit(node) {
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if (node.kind.tag === "FnStmt" && node.kind.ident === "main") {
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if (mainFn) {
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console.error("error: multiple 'main' functions");
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Deno.exit(1);
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}
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ast.assertNodeWithKind(node, "FnStmt");
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mainFn = node;
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}
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},
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});
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if (!mainFn) {
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console.error("error: no 'main' function");
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Deno.exit(1);
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}
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const m = new middle.MiddleLowerer(resols, checker);
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const mainMiddleFn = m.lowerFn(mainFn);
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if (!Deno.args.includes("--test")) {
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console.log(mainMiddleFn.pretty());
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}
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const interp = new MirInterpreter();
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interp.eval(mainMiddleFn);
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