mirror of
https://github.com/microsoft/playwright.git
synced 2024-12-15 22:22:53 +03:00
85 lines
3.0 KiB
JavaScript
85 lines
3.0 KiB
JavaScript
/**
|
|
* Copyright (c) Microsoft Corporation.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
const fs = require('fs');
|
|
const path = require('path');
|
|
const {TextSourceMap} = require('./SourceMap');
|
|
const util = require('util');
|
|
|
|
const readFileAsync = util.promisify(fs.readFile.bind(fs));
|
|
|
|
class SourceMapSupport {
|
|
constructor() {
|
|
this._sourceMapPromises = new Map();
|
|
}
|
|
|
|
async rewriteStackTraceWithSourceMaps(error) {
|
|
if (!error.stack || typeof error.stack !== 'string')
|
|
return;
|
|
const stackFrames = error.stack.split('\n');
|
|
for (let i = 0; i < stackFrames.length; ++i) {
|
|
const stackFrame = stackFrames[i];
|
|
|
|
let match = stackFrame.match(/\((.*):(\d+):(\d+)\)$/);
|
|
if (!match)
|
|
match = stackFrame.match(/^\s*at (.*):(\d+):(\d+)$/);
|
|
if (!match)
|
|
continue;
|
|
const filePath = match[1];
|
|
const sourceMap = await this._maybeLoadSourceMapForPath(filePath);
|
|
if (!sourceMap)
|
|
continue;
|
|
const compiledLineNumber = parseInt(match[2], 10);
|
|
const compiledColumnNumber = parseInt(match[3], 10);
|
|
if (isNaN(compiledLineNumber) || isNaN(compiledColumnNumber))
|
|
continue;
|
|
const entry = sourceMap.findEntry(compiledLineNumber, compiledColumnNumber);
|
|
if (!entry)
|
|
continue;
|
|
stackFrames[i] = stackFrame.replace(filePath + ':' + compiledLineNumber + ':' + compiledColumnNumber, entry.sourceURL + ':' + entry.sourceLineNumber + ':' + entry.sourceColumnNumber);
|
|
}
|
|
error.stack = stackFrames.join('\n');
|
|
}
|
|
|
|
async _maybeLoadSourceMapForPath(filePath) {
|
|
let sourceMapPromise = this._sourceMapPromises.get(filePath);
|
|
if (sourceMapPromise === undefined) {
|
|
sourceMapPromise = this._loadSourceMapForPath(filePath);
|
|
this._sourceMapPromises.set(filePath, sourceMapPromise);
|
|
}
|
|
return sourceMapPromise;
|
|
}
|
|
|
|
async _loadSourceMapForPath(filePath) {
|
|
try {
|
|
const fileContent = await readFileAsync(filePath, 'utf8');
|
|
const magicCommentLine = fileContent.trim().split('\n').pop().trim();
|
|
const magicCommentMatch = magicCommentLine.match('^//#\\s*sourceMappingURL\\s*=(.*)$');
|
|
if (!magicCommentMatch)
|
|
return null;
|
|
const sourceMappingURL = magicCommentMatch[1].trim();
|
|
|
|
const sourceMapPath = path.resolve(path.dirname(filePath), sourceMappingURL);
|
|
const json = JSON.parse(await readFileAsync(sourceMapPath, 'utf8'));
|
|
return new TextSourceMap(filePath, sourceMapPath, json);
|
|
} catch(e) {
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
|
|
module.exports = {SourceMapSupport};
|