137 lines
3.3 KiB
JavaScript
137 lines
3.3 KiB
JavaScript
exports.get = function(belowFn) {
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var oldLimit = Error.stackTraceLimit;
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Error.stackTraceLimit = Infinity;
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var dummyObject = {};
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var v8Handler = Error.prepareStackTrace;
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Error.prepareStackTrace = function(dummyObject, v8StackTrace) {
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return v8StackTrace;
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};
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Error.captureStackTrace(dummyObject, belowFn || exports.get);
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var v8StackTrace = dummyObject.stack;
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Error.prepareStackTrace = v8Handler;
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Error.stackTraceLimit = oldLimit;
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return v8StackTrace;
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};
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exports.parse = function(err) {
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if (!err.stack) {
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return [];
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}
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var self = this;
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var lines = err.stack.split('\n').slice(1);
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return lines
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.map(function(line) {
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if (line.match(/^\s*[-]{4,}$/)) {
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return self._createParsedCallSite({
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fileName: line,
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lineNumber: null,
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functionName: null,
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typeName: null,
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methodName: null,
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columnNumber: null,
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'native': null,
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});
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}
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var lineMatch = line.match(/at (?:(.+)\s+\()?(?:(.+?):(\d+)(?::(\d+))?|([^)]+))\)?/);
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if (!lineMatch) {
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return;
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}
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var object = null;
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var method = null;
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var functionName = null;
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var typeName = null;
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var methodName = null;
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var isNative = (lineMatch[5] === 'native');
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if (lineMatch[1]) {
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functionName = lineMatch[1];
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var methodStart = functionName.lastIndexOf('.');
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if (functionName[methodStart-1] == '.')
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methodStart--;
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if (methodStart > 0) {
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object = functionName.substr(0, methodStart);
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method = functionName.substr(methodStart + 1);
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var objectEnd = object.indexOf('.Module');
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if (objectEnd > 0) {
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functionName = functionName.substr(objectEnd + 1);
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object = object.substr(0, objectEnd);
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}
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}
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typeName = null;
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}
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if (method) {
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typeName = object;
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methodName = method;
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}
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if (method === '<anonymous>') {
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methodName = null;
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functionName = null;
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}
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var properties = {
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fileName: lineMatch[2] || null,
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lineNumber: parseInt(lineMatch[3], 10) || null,
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functionName: functionName,
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typeName: typeName,
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methodName: methodName,
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columnNumber: parseInt(lineMatch[4], 10) || null,
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'native': isNative,
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};
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return self._createParsedCallSite(properties);
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})
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.filter(function(callSite) {
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return !!callSite;
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});
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};
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function CallSite(properties) {
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for (var property in properties) {
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this[property] = properties[property];
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}
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}
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var strProperties = [
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'this',
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'typeName',
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'functionName',
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'methodName',
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'fileName',
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'lineNumber',
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'columnNumber',
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'function',
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'evalOrigin'
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];
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var boolProperties = [
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'topLevel',
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'eval',
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'native',
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'constructor'
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];
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strProperties.forEach(function (property) {
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CallSite.prototype[property] = null;
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CallSite.prototype['get' + property[0].toUpperCase() + property.substr(1)] = function () {
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return this[property];
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}
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});
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boolProperties.forEach(function (property) {
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CallSite.prototype[property] = false;
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CallSite.prototype['is' + property[0].toUpperCase() + property.substr(1)] = function () {
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return this[property];
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}
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});
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exports._createParsedCallSite = function(properties) {
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return new CallSite(properties);
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};
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