104 lines
2.2 KiB
JavaScript
104 lines
2.2 KiB
JavaScript
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/*!
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* depd
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* Copyright(c) 2014 Douglas Christopher Wilson
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* MIT Licensed
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*/
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'use strict'
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/**
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* Module exports.
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*/
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module.exports = callSiteToString
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/**
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* Format a CallSite file location to a string.
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*/
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function callSiteFileLocation (callSite) {
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var fileName
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var fileLocation = ''
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if (callSite.isNative()) {
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fileLocation = 'native'
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} else if (callSite.isEval()) {
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fileName = callSite.getScriptNameOrSourceURL()
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if (!fileName) {
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fileLocation = callSite.getEvalOrigin()
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}
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} else {
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fileName = callSite.getFileName()
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}
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if (fileName) {
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fileLocation += fileName
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var lineNumber = callSite.getLineNumber()
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if (lineNumber != null) {
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fileLocation += ':' + lineNumber
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var columnNumber = callSite.getColumnNumber()
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if (columnNumber) {
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fileLocation += ':' + columnNumber
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}
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}
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}
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return fileLocation || 'unknown source'
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}
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/**
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* Format a CallSite to a string.
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*/
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function callSiteToString (callSite) {
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var addSuffix = true
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var fileLocation = callSiteFileLocation(callSite)
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var functionName = callSite.getFunctionName()
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var isConstructor = callSite.isConstructor()
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var isMethodCall = !(callSite.isToplevel() || isConstructor)
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var line = ''
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if (isMethodCall) {
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var methodName = callSite.getMethodName()
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var typeName = getConstructorName(callSite)
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if (functionName) {
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if (typeName && functionName.indexOf(typeName) !== 0) {
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line += typeName + '.'
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}
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line += functionName
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if (methodName && functionName.lastIndexOf('.' + methodName) !== functionName.length - methodName.length - 1) {
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line += ' [as ' + methodName + ']'
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}
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} else {
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line += typeName + '.' + (methodName || '<anonymous>')
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}
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} else if (isConstructor) {
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line += 'new ' + (functionName || '<anonymous>')
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} else if (functionName) {
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line += functionName
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} else {
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addSuffix = false
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line += fileLocation
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}
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if (addSuffix) {
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line += ' (' + fileLocation + ')'
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}
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return line
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}
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/**
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* Get constructor name of reviver.
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*/
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function getConstructorName (obj) {
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var receiver = obj.receiver
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return (receiver.constructor && receiver.constructor.name) || null
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}
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