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Diffstat (limited to 'src/3rdparty/v8/tools/logreader.js')
-rw-r--r-- | src/3rdparty/v8/tools/logreader.js | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/src/3rdparty/v8/tools/logreader.js b/src/3rdparty/v8/tools/logreader.js deleted file mode 100644 index a8141da..0000000 --- a/src/3rdparty/v8/tools/logreader.js +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2011 the V8 project authors. All rights reserved. -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following -// disclaimer in the documentation and/or other materials provided -// with the distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -/** - * @fileoverview Log Reader is used to process log file produced by V8. - */ - - -/** - * 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)); - } - } -}; |