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-rw-r--r--chromium/third_party/trace-viewer/src/tracing/importer/v8/log_reader.js219
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diff --git a/chromium/third_party/trace-viewer/src/tracing/importer/v8/log_reader.js b/chromium/third_party/trace-viewer/src/tracing/importer/v8/log_reader.js
deleted file mode 100644
index c2ffe173e97..00000000000
--- a/chromium/third_party/trace-viewer/src/tracing/importer/v8/log_reader.js
+++ /dev/null
@@ -1,219 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-'use strict';
-
-/**
- * @fileoverview Log Reader is used to process log file produced by V8.
- */
-base.exportTo('tracing.importer.v8', function() {
- /**
- * Creates a CSV lines parser.
- */
- function CsvParser() {
- };
-
-
- /**
- * A regex for matching a CSV field.
- * @private
- */
- CsvParser.CSV_FIELD_RE_ = /^"((?:[^"]|"")*)"|([^,]*)/;
-
-
- /**
- * A regex for matching a double quote.
- * @private
- */
- CsvParser.DOUBLE_QUOTE_RE_ = /""/g;
-
-
- /**
- * Parses a line of CSV-encoded values. Returns an array of fields.
- *
- * @param {string} line Input line.
- */
- CsvParser.prototype.parseLine = function(line) {
- var fieldRe = CsvParser.CSV_FIELD_RE_;
- var doubleQuoteRe = CsvParser.DOUBLE_QUOTE_RE_;
- var pos = 0;
- var endPos = line.length;
- var fields = [];
- if (endPos > 0) {
- do {
- var fieldMatch = fieldRe.exec(line.substr(pos));
- if (typeof fieldMatch[1] === 'string') {
- var field = fieldMatch[1];
- pos += field.length + 3; // Skip comma and quotes.
- fields.push(field.replace(doubleQuoteRe, '"'));
- } else {
- // The second field pattern will match anything, thus
- // in the worst case the match will be an empty string.
- var field = fieldMatch[2];
- pos += field.length + 1; // Skip comma.
- fields.push(field);
- }
- } while (pos <= endPos);
- }
- return fields;
- };
-
- /**
- * Base class for processing log files.
- *
- * @param {Array.<Object>} dispatchTable A table used for parsing and
- * processing log records.
- *
- * @constructor
- */
- function LogReader(dispatchTable) {
- /**
- * @type {Array.<Object>}
- */
- this.dispatchTable_ = dispatchTable;
-
- /**
- * Current line.
- * @type {number}
- */
- this.lineNum_ = 0;
-
- /**
- * CSV lines parser.
- * @type {CsvParser}
- */
- this.csvParser_ = new CsvParser();
- };
-
-
- /**
- * Used for printing error messages.
- *
- * @param {string} str Error message.
- */
- LogReader.prototype.printError = function(str) {
- // Do nothing.
- };
-
-
- /**
- * Processes a portion of V8 profiler event log.
- *
- * @param {string} chunk A portion of log.
- */
- LogReader.prototype.processLogChunk = function(chunk) {
- this.processLog_(chunk.split('\n'));
- };
-
-
- /**
- * Processes a line of V8 profiler event log.
- *
- * @param {string} line A line of log.
- */
- LogReader.prototype.processLogLine = function(line) {
- this.processLog_([line]);
- };
-
-
- /**
- * Processes stack record.
- *
- * @param {number} pc Program counter.
- * @param {number} func JS Function.
- * @param {Array.<string>} stack String representation of a stack.
- * @return {Array.<number>} Processed stack.
- */
- LogReader.prototype.processStack = function(pc, func, stack) {
- var fullStack = func ? [pc, func] : [pc];
- var prevFrame = pc;
- for (var i = 0, n = stack.length; i < n; ++i) {
- var frame = stack[i];
- var firstChar = frame.charAt(0);
- if (firstChar == '+' || firstChar == '-') {
- // An offset from the previous frame.
- prevFrame += parseInt(frame, 16);
- fullStack.push(prevFrame);
- // Filter out possible 'overflow' string.
- } else if (firstChar != 'o') {
- fullStack.push(parseInt(frame, 16));
- }
- }
- return fullStack;
- };
-
-
- /**
- * Returns whether a particular dispatch must be skipped.
- *
- * @param {!Object} dispatch Dispatch record.
- * @return {boolean} True if dispatch must be skipped.
- */
- LogReader.prototype.skipDispatch = function(dispatch) {
- return false;
- };
-
-
- /**
- * Does a dispatch of a log record.
- *
- * @param {Array.<string>} fields Log record.
- * @private
- */
- LogReader.prototype.dispatchLogRow_ = function(fields) {
- // Obtain the dispatch.
- var command = fields[0];
- if (!(command in this.dispatchTable_)) return;
-
- var dispatch = this.dispatchTable_[command];
-
- if (dispatch === null || this.skipDispatch(dispatch)) {
- return;
- }
-
- // Parse fields.
- var parsedFields = [];
- for (var i = 0; i < dispatch.parsers.length; ++i) {
- var parser = dispatch.parsers[i];
- if (parser === null) {
- parsedFields.push(fields[1 + i]);
- } else if (typeof parser == 'function') {
- parsedFields.push(parser(fields[1 + i]));
- } else {
- // var-args
- parsedFields.push(fields.slice(1 + i));
- break;
- }
- }
-
- // Run the processor.
- dispatch.processor.apply(this, parsedFields);
- };
-
-
- /**
- * Processes log lines.
- *
- * @param {Array.<string>} lines Log lines.
- * @private
- */
- LogReader.prototype.processLog_ = function(lines) {
- for (var i = 0, n = lines.length; i < n; ++i, ++this.lineNum_) {
- var line = lines[i];
- if (!line) {
- continue;
- }
- try {
- var fields = this.csvParser_.parseLine(line);
- this.dispatchLogRow_(fields);
- } catch (e) {
- this.printError('line ' + (this.lineNum_ + 1) + ': ' +
- (e.message || e));
- }
- }
- };
- return {
- LogReader: LogReader
- };
-});