76 lines
3.0 KiB
TypeScript
76 lines
3.0 KiB
TypeScript
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import { describe, expect, it } from "bun:test";
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import { realpathSync } from "fs";
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import { bunEnv, bunExe, tempDir } from "harness";
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import { join } from "path";
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describe("issue/03830", () => {
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// First test stays sequential: `toMatchSnapshot()` is not supported in
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// concurrent tests (Bun's test runner rejects it). The second test has no
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// snapshot matcher, so it runs `.concurrent` per test/CLAUDE.md.
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it("macros should not lead to seg faults under any given input", async () => {
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// this test code follows the same structure as and
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// is based on the code for testing issue 4893
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using dir = tempDir("issue-03830", {
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"macro.ts": "export function fn(str) { return str; }",
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"index.ts": "import { fn } from './macro' assert { type: 'macro' };\nfn(`©${Number(0)}`);",
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});
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const testDir = realpathSync(dir);
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await using proc = Bun.spawn({
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cmd: [bunExe(), "build", "--minify", join(testDir, "index.ts")],
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env: bunEnv,
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stderr: "pipe",
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stdout: "pipe",
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});
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const [stderr, exitCode] = await Promise.all([proc.stderr.text(), proc.exited]);
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expect(stderr.trim().replaceAll(testDir, "[dir]").replaceAll("\\", "/")).toMatchSnapshot();
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expect(exitCode).toBe(1);
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});
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it.concurrent.each([
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// [name, where transformSync+import() runs in macro.ts]
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["inside the exported macro fn", "fn-body"],
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// Macro::init runs the module's top-level via wait_for_promise BEFORE the
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// caller's MacroModeGuard exists — Macro::init holds its own guard so
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// depth > 0 here too.
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["at macro-module top level (during Macro::init)", "top-level"],
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])("nested Bun.Transpiler %s then import() does not free the printer", async (_, where) => {
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// Bun.Transpiler#transformSync drops a nested MacroContext via
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// TranspilerStateGuard, which calls __bun_macro_context_deinit. On a
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// bundler-worker thread the macro was the first SOURCE_CODE_PRINTER
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// allocator; freeing it here would panic the subsequent module fetch.
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const macroTs =
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where === "top-level"
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? `new Bun.Transpiler().transformSync("const a = 1;");
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const mod = await import("./helper.ts");
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export function nested() { return mod.value; }`
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: `export async function nested() {
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new Bun.Transpiler().transformSync("const a = 1;");
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const mod = await import("./helper.ts");
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return mod.value;
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}`;
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using dir = tempDir("issue-03830-nested", {
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"helper.ts": "export const value = 42;",
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"macro.ts": macroTs,
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"index.ts": "import { nested } from './macro.ts' with { type: 'macro' };\nconsole.log(nested());",
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});
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const testDir = realpathSync(dir);
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await using proc = Bun.spawn({
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cmd: [bunExe(), "build", "--target=bun", join(testDir, "index.ts")],
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env: bunEnv,
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stderr: "pipe",
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stdout: "pipe",
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});
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const [stdout, stderr, exitCode] = await Promise.all([proc.stdout.text(), proc.stderr.text(), proc.exited]);
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expect(stderr.trim()).toBe("");
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expect(stdout).toContain("console.log(42)");
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expect(exitCode).toBe(0);
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});
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});
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