scriptc/tests/fixtures/self-hosting/serialize.ts

import { readFileSync } from "node:fs";
import { deserializeModule, serializeModule } from "../../../packages/compiler/src/ir/serialize.js";
import { validateModule } from "../../../packages/compiler/src/ir/validate.js";

try {
  const mod = deserializeModule(readFileSync(process.argv[2]!, "utf8"));
  const errors = validateModule(mod);
  if (errors.length > 0) {
    console.log(JSON.stringify(errors));
    process.exitCode = 1;
  } else {
    // Introduce a native NaN before serialization, independently of the
    // input document's sentinel decoding.
    if (process.argv[3] === "nan") {
      const statement = mod.functions[0]!.body[0];
      if (statement?.kind === "exprStmt" && statement.expr.kind === "numLit") statement.expr.value = NaN;
    }
    console.log(serializeModule(mod, process.argv[3] === "compact"));
  }
} catch (error) {
  if (error instanceof Error) console.log(error.name + ": " + error.message);
  else console.log("unexpected thrown value");
  process.exitCode = 1;
}