31 lines
1.5 KiB
TypeScript
31 lines
1.5 KiB
TypeScript
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import { expect, test } from "bun:test";
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import { readFileSync } from "node:fs";
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import path from "node:path";
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// bun_windows_sys is depended on unconditionally (not behind
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// [target.'cfg(windows)']) by several workspace crates that need its Win32 POD
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// typedefs on every target. A bare #[link(name = "...")] on any extern block
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// therefore bakes -lntdll / -lkernel32 / ... into the rlib on non-Windows
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// hosts, and cargo test / cargo bench for any transitive dependent fails to
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// link with "ld.lld: error: unable to find library -lntdll".
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//
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// The bare spelling is correct elsewhere in the tree (e.g. backend_wic.rs,
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// threading/Mutex.rs) where the enclosing module is already #[cfg(windows)],
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// so this lint is scoped to externs.rs only.
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test("bun_windows_sys: every #[link(name = ...)] is gated behind cfg(windows)", () => {
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const file = path.resolve(import.meta.dir, "..", "..", "..", "src", "windows_sys", "externs.rs");
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const source = readFileSync(file, "utf8");
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const violations: string[] = [];
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for (const [lineIndex, line] of source.split("\n").entries()) {
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const code = line.replace(/\/\/.*/, "");
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// Bare `#[link(name = ...)]` not wrapped in cfg_attr. `#[link_name = ...]`
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// (symbol rename) is a different attribute and is fine.
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if (/#\[\s*link\s*\(\s*name\s*=/.test(code) && !/cfg_attr\s*\(\s*windows/.test(code)) {
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violations.push(`src/windows_sys/externs.rs:${lineIndex + 1}: ${line.trim()}`);
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}
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}
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expect(violations).toEqual([]);
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});
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