(function(root, factory) {
'use strict';
// Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.
/* istanbul ignore next */
if (typeof define === 'function' && define.amd) {
define('error-stack-parser', ['stackframe'], factory);
} else if (typeof exports === 'object') {
module.exports = factory(require('stackframe'));
} else {
root.ErrorStackParser = factory(root.StackFrame);
}
}(this, function ErrorStackParser(StackFrame) {
'use strict';
var FIREFOX_SAFARI_STACK_REGEXP = /(^|@)\S+\:\d+/;
var CHROME_IE_STACK_REGEXP = /^\s*at .*(\S+\:\d+|\(native\))/m;
var SAFARI_NATIVE_CODE_REGEXP = /^(eval@)?(\[native code\])?$/;
function _map(array, fn, thisArg) {
if (typeof Array.prototype.map === 'function') {
return array.map(fn, thisArg);
} else {
var output = new Array(array.length);
for (var i = 0; i < array.length; i++) {
output[i] = fn.call(thisArg, array[i]);
}
return output;
}
}
function _filter(array, fn, thisArg) {
if (typeof Array.prototype.filter === 'function') {
return array.filter(fn, thisArg);
} else {
var output = [];
for (var i = 0; i < array.length; i++) {
if (fn.call(thisArg, array[i])) {
output.push(array[i]);
}
}
return output;
}
}
return {
/**
* Given an Error object, extract the most information from it.
*
* @param {Error} error object
* @return {Array} of StackFrames
*/
parse: function ErrorStackParser$$parse(error) {
if (typeof error.stacktrace !== 'undefined' || typeof error['opera#sourceloc'] !== 'undefined') {
return this.parseOpera(error);
} else if (error.stack && error.stack.match(CHROME_IE_STACK_REGEXP)) {
return this.parseV8OrIE(error);
} else if (error.stack) {
return this.parseFFOrSafari(error);
} else {
throw new Error('Cannot parse given Error object');
}
},
/**
* Separate line and column numbers from a URL-like string.
*
* @param {String} urlLike
* @return {Array} 3-tuple of URL, Line Number, and Column Number
*/
extractLocation: function ErrorStackParser$$extractLocation(urlLike) {
// Fail-fast but return locations like "(native)"
if (urlLike.indexOf(':') === -1) {
return [urlLike];
}
var locationParts = urlLike.replace(/[\(\)\s]/g, '').split(':');
var lastNumber = locationParts.pop();
var possibleNumber = locationParts[locationParts.length - 1];
if (!isNaN(parseFloat(possibleNumber)) && isFinite(possibleNumber)) {
var lineNumber = locationParts.pop();
return [locationParts.join(':'), lineNumber, lastNumber];
} else {
return [locationParts.join(':'), lastNumber, undefined];
}
},
parseV8OrIE: function ErrorStackParser$$parseV8OrIE(error) {
var filtered = _filter(error.stack.split('\n'), function(line) {
return !!line.match(CHROME_IE_STACK_REGEXP);
}, this);
return _map(filtered, function(line) {
if (line.indexOf('(eval ') > -1) {
// Throw away eval information until we implement stacktrace.js/stackframe#8
line = line.replace(/eval code/g, 'eval').replace(/(\(eval at [^\()]*)|(\)\,.*$)/g, '');
}
var tokens = line.replace(/^\s+/, '').replace(/\(eval code/g, '(').split(/\s+/).slice(1);
var locationParts = this.extractLocation(tokens.pop());
var functionName = tokens.join(' ') || undefined;
var fileName = ['eval', '<anonymous>'].indexOf(locationParts[0]) > -1 ? undefined : locationParts[0];
return new StackFrame(functionName, undefined, fileName, locationParts[1], locationParts[2], line);
}, this);
},
parseFFOrSafari: function ErrorStackParser$$parseFFOrSafari(error) {
var filtered = _filter(error.stack.split('\n'), function(line) {
return !line.match(SAFARI_NATIVE_CODE_REGEXP);
}, this);
return _map(filtered, function(line) {
// Throw away eval information until we implement stacktrace.js/stackframe#8
if (line.indexOf(' > eval') > -1) {
line = line.replace(/ line (\d+)(?: > eval line \d+)* > eval\:\d+\:\d+/g, ':$1');
}
if (line.indexOf('@') === -1 && line.indexOf(':') === -1) {
// Safari eval frames only have function names and nothing else
return new StackFrame(line);
} else {
var tokens = line.split('@');
var locationParts = this.extractLocation(tokens.pop());
var functionName = tokens.join('@') || undefined;
return new StackFrame(functionName,
undefined,
locationParts[0],
locationParts[1],
locationParts[2],
line);
}
}, this);
},
parseOpera: function ErrorStackParser$$parseOpera(e) {
if (!e.stacktrace || (e.message.indexOf('\n') > -1 &&
e.message.split('\n').length > e.stacktrace.split('\n').length)) {
return this.parseOpera9(e);
} else if (!e.stack) {
return this.parseOpera10(e);
} else {
return this.parseOpera11(e);
}
},
parseOpera9: function ErrorStackParser$$parseOpera9(e) {
var lineRE = /Line (\d+).*script (?:in )?(\S+)/i;
var lines = e.message.split('\n');
var result = [];
for (var i = 2, len = lines.length; i < len; i += 2) {
var match = lineRE.exec(lines[i]);
if (match) {
result.push(new StackFrame(undefined, undefined, match[2], match[1], undefined, lines[i]));
}
}
return result;
},
parseOpera10: function ErrorStackParser$$parseOpera10(e) {
var lineRE = /Line (\d+).*script (?:in )?(\S+)(?:: In function (\S+))?$/i;
var lines = e.stacktrace.split('\n');
var result = [];
for (var i = 0, len = lines.length; i < len; i += 2) {
var match = lineRE.exec(lines[i]);
if (match) {
result.push(
new StackFrame(
match[3] || undefined,
undefined,
match[2],
match[1],
undefined,
lines[i]
)
);
}
}
return result;
},
// Opera 10.65+ Error.stack very similar to FF/Safari
parseOpera11: function ErrorStackParser$$parseOpera11(error) {
var filtered = _filter(error.stack.split('\n'), function(line) {
return !!line.match(FIREFOX_SAFARI_STACK_REGEXP) && !line.match(/^Error created at/);
}, this);
return _map(filtered, function(line) {
var tokens = line.split('@');
var locationParts = this.extractLocation(tokens.pop());
var functionCall = (tokens.shift() || '');
var functionName = functionCall
.replace(/<anonymous function(: (\w+))?>/, '$2')
.replace(/\([^\)]*\)/g, '') || undefined;
var argsRaw;
if (functionCall.match(/\(([^\)]*)\)/)) {
argsRaw = functionCall.replace(/^[^\(]+\(([^\)]*)\)$/, '$1');
}
var args = (argsRaw === undefined || argsRaw === '[arguments not available]') ?
undefined : argsRaw.split(',');
return new StackFrame(
functionName,
args,
locationParts[0],
locationParts[1],
locationParts[2],
line);
}, this);
}
};
}));