Files
magic/npm/examples/drc.js
T
Enno Schnackenberg 50320a055a npm: surface readable diagnostics on WASM test failures
The example/suite runners discarded e.stack via console.error(e.message ?? e),
hiding the wasm-function offsets that emsymbolizer needs to map an abort back
to C source. A failing test only printed a terse message like "memory access
out of bounds" with no trace.

- Add reportError() to helpers.js/helpers-tcl.js; print the full stack
  (falling back to the message).
- Wrap command execution in runScript() to name the command that aborted
  before the error propagates.
- Use reportError() in all standalone runners and in all.js/all-tcl.js
  (full stack to stderr, one-line PASS/FAIL summary kept; tests still run
  independently).
- build.sh: run the --test step in a subshell so its cd does not leak into
  the --pack step.
2026-06-09 16:07:53 -04:00

32 lines
1.2 KiB
JavaScript

// drc.js — Run design rule checking and report violations.
//
// Usage: node examples/drc.js [magFile [tech]]
import { createMagic, loadCell, loadScript,
DEFAULT_TECH, DEFAULT_MAG, reportError } from './helpers.js';
import { fileURLToPath } from 'node:url';
export async function run({ magFile = DEFAULT_MAG, tech = DEFAULT_TECH } = {}) {
const output = [];
const { magic } = await createMagic({
onPrint: msg => { output.push(msg); console.log('[magic]', msg); },
onPrintErr: msg => { output.push(msg); console.error('[magic]', msg); },
});
const { FS } = magic;
const { tech: techName, cell } = loadCell(FS, tech, magFile);
magic.runScript(loadScript('drc.tcl', techName, cell));
// Magic prints "Total DRC errors found: N" at the end of drc listall.
const summary = output.find(l => /Total DRC errors/i.test(l));
const match = summary?.match(/(\d+)/);
const violations = match ? parseInt(match[1], 10) : null;
return { violations, output };
}
if (process.argv[1] === fileURLToPath(import.meta.url)) {
const { violations } = await run().catch(e => { reportError(e); process.exit(1); });
console.log(`\nDRC violations: ${violations ?? '(count not found in output)'}`);
console.log('Done.');
}