import { Syms } from "./resolve.ts";
import * as ast from "../ast.ts";
import { Ty } from "../ty.ts";

export function checkFn(fn: ast.FnStmt, syms: Syms) {
}

export class FnTys {
    constructor(
        private nodeTys: Map<ast.Node, Ty>,
    ) {}

    get(node: ast.Node): Ty {
        const ty = this.nodeTys.get(node);
        if (ty === undefined) {
            throw new Error(`no type for '${node.kind.tag}'`);
        }
        return ty;
    }
}

class FnChecker {
    private nodeTys = new Map<ast.Node, Ty>();

    constructor(
        private fn: ast.FnStmt,
        private syms: Syms,
    ) {}

    check() {
    }
}