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Switch back to Error.prepareStackTrace: Memory leak caused by Error.c…
…aptureStackTrace invoking prepareStackTrace
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Adam Crabtree
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Apr 1, 2014
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // Copyright 2006-2008 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. | ||
| function FormatStackTrace(error, frames) { | ||
| var lines = []; | ||
| try { | ||
| lines.push(error.toString()); | ||
| } catch (e) { | ||
| try { | ||
| lines.push("<error: " + e + ">"); | ||
| } catch (ee) { | ||
| lines.push("<error>"); | ||
| } | ||
| } | ||
| for (var i = 0; i < frames.length; i++) { | ||
| var frame = frames[i]; | ||
| var line; | ||
| try { | ||
| line = FormatSourcePosition(frame); | ||
| } catch (e) { | ||
| try { | ||
| line = "<error: " + e + ">"; | ||
| } catch (ee) { | ||
| // Any code that reaches this point is seriously nasty! | ||
| line = "<error>"; | ||
| } | ||
| } | ||
| if (line !== undefined) { | ||
| line = " at " + line; | ||
| lines.push(line); | ||
| } | ||
| } | ||
| return lines.join("\n"); | ||
| } | ||
|
|
||
| function FormatSourcePosition(frame) { | ||
| var fileLocation = ""; | ||
| if (frame.isNative()) { | ||
| fileLocation = "native"; | ||
| } else if (frame.isEval()) { | ||
| fileLocation = "eval at " + frame.getEvalOrigin(); | ||
| } else { | ||
| var fileName = frame.getFileName(); | ||
| if (fileName) { | ||
| fileLocation += fileName; | ||
| var lineNumber = frame.getLineNumber(); | ||
| if (lineNumber != null) { | ||
| fileLocation += ":" + lineNumber; | ||
| var columnNumber = frame.getColumnNumber(); | ||
| if (columnNumber) { | ||
| fileLocation += ":" + columnNumber; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| if (!fileLocation) { | ||
| fileLocation = "unknown source"; | ||
| } | ||
| var line = ""; | ||
| var functionName = frame.getFunction().name; | ||
| var addPrefix = true; | ||
| var isConstructor = frame.isConstructor(); | ||
| var isMethodCall = !(frame.isToplevel() || isConstructor); | ||
| if (isMethodCall) { | ||
| var methodName = frame.getMethodName(); | ||
| line += frame.getTypeName() + "."; | ||
| if (functionName) { | ||
| line += functionName; | ||
| if (methodName && (methodName != functionName)) { | ||
| line += " [as " + methodName + "]"; | ||
| } | ||
| } else { | ||
| line += methodName || "<anonymous>"; | ||
| } | ||
| } else if (isConstructor) { | ||
| line += "new " + (functionName || "<anonymous>"); | ||
| } else if (functionName) { | ||
| line += functionName; | ||
| } else { | ||
| line += fileLocation; | ||
| addPrefix = false; | ||
| } | ||
| if (addPrefix) { | ||
| line += " (" + fileLocation + ")"; | ||
| } | ||
| return line; | ||
| } | ||
|
|
||
| module.exports = FormatStackTrace |
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