testComputedKeysNameValues

tcmts.core.test.hash.testComputedKeysNameValues · #3f7rvobr · term

A computed key names a value, inside a type too: readonly [evaluate]: … uses the unique symbol evaluate, not the type of that name beside it (Effect's evaluate, TypeId).

import { analyzeProject } from "#codebase/tcmts/core/analyze";
import { dir } from "#codebase/tcmts/core/test/hash";
import assert from "node:assert/strict";
import fs from "node:fs";
import path from "node:path";

export const testComputedKeysNameValues = () => {
  const sub = fs.mkdtempSync(path.join(dir, "keys-"));
  const file = path.join(sub, "keys.ts");
  fs.writeFileSync(
    file,
    `export const evaluate: unique symbol = Symbol.for("evaluate");
export type evaluate = typeof evaluate;
export interface Primitive {
  readonly [evaluate]: () => number;
}
`,
  );
  const a = analyzeProject([file], {
    cacheDir: path.join(sub, ".tcm", "cache"),
    resolveName: () => "",
  });
  assert.deepEqual([...a.diagnostics.map((d) => d.message), ...a.errors], []);
  const value = a.defs.find((d) => d.nameHint === "evaluate" && d.kind !== "type")!;
  const deps = a.defs.find((d) => d.nameHint === "Primitive")!.deps.map((d) => d.ref);
  assert.ok(deps.includes(`#${value.hash}`), `the key is the constant: ${deps.join(", ")}`);
}