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The second parameter of `Error.prepareStackTrace` is an array of reversed call site frames. PR-URL: https://github.com/nodejs/node/pull/50827 Fixes: https://github.com/nodejs/node/issues/50733 Reviewed-By: Ethan Arrowood <ethan@arrowood.dev> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
89 lines
2.2 KiB
JavaScript
89 lines
2.2 KiB
JavaScript
'use strict';
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require('../common');
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const ArrayStream = require('../common/arraystream');
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const fixtures = require('../common/fixtures');
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const assert = require('assert');
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const repl = require('repl');
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const stackRegExp = /(REPL\d+):[0-9]+:[0-9]+/g;
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function run({ command, expected }) {
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let accum = '';
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const inputStream = new ArrayStream();
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const outputStream = new ArrayStream();
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outputStream.write = (data) => accum += data.replace('\r', '');
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const r = repl.start({
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prompt: '',
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input: inputStream,
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output: outputStream,
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terminal: false,
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useColors: false
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});
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r.write(`${command}\n`);
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if (typeof expected === 'string') {
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assert.strictEqual(
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accum.replace(stackRegExp, '$1:*:*'),
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expected.replace(stackRegExp, '$1:*:*')
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);
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} else {
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assert.match(
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accum.replace(stackRegExp, '$1:*:*'),
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expected
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);
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}
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r.close();
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}
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const origPrepareStackTrace = Error.prepareStackTrace;
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Error.prepareStackTrace = (err, stack) => {
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if (err instanceof SyntaxError)
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return err.toString();
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// Insert the error at the beginning of the stack
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stack.unshift(err);
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return stack.join('--->\n');
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};
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process.on('uncaughtException', (e) => {
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Error.prepareStackTrace = origPrepareStackTrace;
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throw e;
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});
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const tests = [
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{
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// test .load for a file that throws
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command: `.load ${fixtures.path('repl-pretty-stack.js')}`,
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expected: 'Uncaught Error: Whoops!--->\nREPL1:*:*--->\nd (REPL1:*:*)' +
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'--->\nc (REPL1:*:*)--->\nb (REPL1:*:*)--->\na (REPL1:*:*)\n'
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},
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{
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command: 'let x y;',
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expected: /let x y;\n {6}\^\n\nUncaught SyntaxError: Unexpected identifier.*\n/
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},
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{
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command: 'throw new Error(\'Whoops!\')',
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expected: 'Uncaught Error: Whoops!\n'
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},
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{
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command: 'foo = bar;',
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expected: 'Uncaught ReferenceError: bar is not defined\n'
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},
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// test anonymous IIFE
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{
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command: '(function() { throw new Error(\'Whoops!\'); })()',
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expected: 'Uncaught Error: Whoops!--->\nREPL5:*:*\n'
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},
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];
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tests.forEach(run);
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// Verify that the stack can be generated when Error.prepareStackTrace is deleted.
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delete Error.prepareStackTrace;
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run({
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command: 'throw new TypeError(\'Whoops!\')',
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expected: 'Uncaught TypeError: Whoops!\n'
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});
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