integrating basic websocket

bkp/node_modules/depd/lib/compat/callsite-tostring.js

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