Index: src/messages.js |
diff --git a/src/messages.js b/src/messages.js |
deleted file mode 100644 |
index 5441cfe34a71970912e7b8c1fe01730b8d573b1d..0000000000000000000000000000000000000000 |
--- a/src/messages.js |
+++ /dev/null |
@@ -1,1046 +0,0 @@ |
-// Copyright 2012 the V8 project authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-// ------------------------------------------------------------------- |
- |
-var $errorToString; |
-var MakeError; |
-var MakeEvalError; |
-var MakeRangeError; |
-var MakeReferenceError; |
-var MakeSyntaxError; |
-var MakeTypeError; |
-var MakeURIError; |
- |
-(function(global, utils) { |
- |
-%CheckIsBootstrapping(); |
- |
-// ------------------------------------------------------------------- |
-// Imports |
- |
-var ArrayJoin; |
-var Bool16x8ToString; |
-var Bool32x4ToString; |
-var Bool8x16ToString; |
-var callSiteReceiverSymbol = |
- utils.ImportNow("call_site_receiver_symbol"); |
-var callSiteFunctionSymbol = |
- utils.ImportNow("call_site_function_symbol"); |
-var callSitePositionSymbol = |
- utils.ImportNow("call_site_position_symbol"); |
-var callSiteStrictSymbol = |
- utils.ImportNow("call_site_strict_symbol"); |
-var Float32x4ToString; |
-var formattedStackTraceSymbol = |
- utils.ImportNow("formatted_stack_trace_symbol"); |
-var FunctionSourceString |
-var GlobalObject = global.Object; |
-var Int16x8ToString; |
-var Int32x4ToString; |
-var Int8x16ToString; |
-var InternalArray = utils.InternalArray; |
-var internalErrorSymbol = utils.ImportNow("internal_error_symbol"); |
-var ObjectDefineProperty; |
-var ObjectToString; |
-var stackTraceSymbol = utils.ImportNow("stack_trace_symbol"); |
-var StringCharAt; |
-var StringIndexOf; |
-var StringSubstring; |
-var SymbolToString; |
-var Uint16x8ToString; |
-var Uint32x4ToString; |
-var Uint8x16ToString; |
- |
-utils.Import(function(from) { |
- ArrayJoin = from.ArrayJoin; |
- Bool16x8ToString = from.Bool16x8ToString; |
- Bool32x4ToString = from.Bool32x4ToString; |
- Bool8x16ToString = from.Bool8x16ToString; |
- Float32x4ToString = from.Float32x4ToString; |
- FunctionSourceString = from.FunctionSourceString; |
- Int16x8ToString = from.Int16x8ToString; |
- Int32x4ToString = from.Int32x4ToString; |
- Int8x16ToString = from.Int8x16ToString; |
- ObjectDefineProperty = from.ObjectDefineProperty; |
- ObjectToString = from.ObjectToString; |
- StringCharAt = from.StringCharAt; |
- StringIndexOf = from.StringIndexOf; |
- StringSubstring = from.StringSubstring; |
- SymbolToString = from.SymbolToString; |
- Uint16x8ToString = from.Uint16x8ToString; |
- Uint32x4ToString = from.Uint32x4ToString; |
- Uint8x16ToString = from.Uint8x16ToString; |
-}); |
- |
-// ------------------------------------------------------------------- |
- |
-var GlobalError; |
-var GlobalTypeError; |
-var GlobalRangeError; |
-var GlobalURIError; |
-var GlobalSyntaxError; |
-var GlobalReferenceError; |
-var GlobalEvalError; |
- |
- |
-function NoSideEffectsObjectToString() { |
- if (IS_UNDEFINED(this)) return "[object Undefined]"; |
- if (IS_NULL(this)) return "[object Null]"; |
- return "[object " + %_ClassOf(TO_OBJECT(this)) + "]"; |
-} |
- |
- |
-function NoSideEffectToString(obj) { |
- if (IS_STRING(obj)) return obj; |
- if (IS_NUMBER(obj)) return %_NumberToString(obj); |
- if (IS_BOOLEAN(obj)) return obj ? 'true' : 'false'; |
- if (IS_UNDEFINED(obj)) return 'undefined'; |
- if (IS_NULL(obj)) return 'null'; |
- if (IS_FUNCTION(obj)) { |
- var str = %_CallFunction(obj, obj, FunctionSourceString); |
- if (str.length > 128) { |
- str = %_SubString(str, 0, 111) + "...<omitted>..." + |
- %_SubString(str, str.length - 2, str.length); |
- } |
- return str; |
- } |
- if (IS_SYMBOL(obj)) return %_CallFunction(obj, SymbolToString); |
- if (IS_SIMD_VALUE(obj)) { |
- switch (typeof(obj)) { |
- case 'float32x4': return %_CallFunction(obj, Float32x4ToString); |
- case 'int32x4': return %_CallFunction(obj, Int32x4ToString); |
- case 'int16x8': return %_CallFunction(obj, Int16x8ToString); |
- case 'int8x16': return %_CallFunction(obj, Int8x16ToString); |
- case 'uint32x4': return %_CallFunction(obj, Uint32x4ToString); |
- case 'uint16x8': return %_CallFunction(obj, Uint16x8ToString); |
- case 'uint8x16': return %_CallFunction(obj, Uint8x16ToString); |
- case 'bool32x4': return %_CallFunction(obj, Bool32x4ToString); |
- case 'bool16x8': return %_CallFunction(obj, Bool16x8ToString); |
- case 'bool8x16': return %_CallFunction(obj, Bool8x16ToString); |
- } |
- } |
- if (IS_OBJECT(obj) |
- && %GetDataProperty(obj, "toString") === ObjectToString) { |
- var constructor = %GetDataProperty(obj, "constructor"); |
- if (typeof constructor == "function") { |
- var constructorName = constructor.name; |
- if (IS_STRING(constructorName) && constructorName !== "") { |
- return "#<" + constructorName + ">"; |
- } |
- } |
- } |
- if (CanBeSafelyTreatedAsAnErrorObject(obj)) { |
- return %_CallFunction(obj, ErrorToString); |
- } |
- |
- return %_CallFunction(obj, NoSideEffectsObjectToString); |
-} |
- |
-// To determine whether we can safely stringify an object using ErrorToString |
-// without the risk of side-effects, we need to check whether the object is |
-// either an instance of a native error type (via '%_ClassOf'), or has Error |
-// in its prototype chain and hasn't overwritten 'toString' with something |
-// strange and unusual. |
-function CanBeSafelyTreatedAsAnErrorObject(obj) { |
- switch (%_ClassOf(obj)) { |
- case 'Error': |
- case 'EvalError': |
- case 'RangeError': |
- case 'ReferenceError': |
- case 'SyntaxError': |
- case 'TypeError': |
- case 'URIError': |
- return true; |
- } |
- |
- var objToString = %GetDataProperty(obj, "toString"); |
- return obj instanceof GlobalError && objToString === ErrorToString; |
-} |
- |
- |
-// When formatting internally created error messages, do not |
-// invoke overwritten error toString methods but explicitly use |
-// the error to string method. This is to avoid leaking error |
-// objects between script tags in a browser setting. |
-function ToStringCheckErrorObject(obj) { |
- if (CanBeSafelyTreatedAsAnErrorObject(obj)) { |
- return %_CallFunction(obj, ErrorToString); |
- } else { |
- return TO_STRING(obj); |
- } |
-} |
- |
- |
-function ToDetailString(obj) { |
- if (obj != null && IS_OBJECT(obj) && obj.toString === ObjectToString) { |
- var constructor = obj.constructor; |
- if (typeof constructor == "function") { |
- var constructorName = constructor.name; |
- if (IS_STRING(constructorName) && constructorName !== "") { |
- return "#<" + constructorName + ">"; |
- } |
- } |
- } |
- return ToStringCheckErrorObject(obj); |
-} |
- |
- |
-function MakeGenericError(constructor, type, arg0, arg1, arg2) { |
- var error = new constructor(FormatMessage(type, arg0, arg1, arg2)); |
- error[internalErrorSymbol] = true; |
- return error; |
-} |
- |
- |
-/** |
- * Set up the Script function and constructor. |
- */ |
-%FunctionSetInstanceClassName(Script, 'Script'); |
-%AddNamedProperty(Script.prototype, 'constructor', Script, |
- DONT_ENUM | DONT_DELETE | READ_ONLY); |
-%SetCode(Script, function(x) { |
- // Script objects can only be created by the VM. |
- throw MakeError(kUnsupported); |
-}); |
- |
- |
-// Helper functions; called from the runtime system. |
-function FormatMessage(type, arg0, arg1, arg2) { |
- var arg0 = NoSideEffectToString(arg0); |
- var arg1 = NoSideEffectToString(arg1); |
- var arg2 = NoSideEffectToString(arg2); |
- try { |
- return %FormatMessageString(type, arg0, arg1, arg2); |
- } catch (e) { |
- return "<error>"; |
- } |
-} |
- |
- |
-function GetLineNumber(message) { |
- var start_position = %MessageGetStartPosition(message); |
- if (start_position == -1) return kNoLineNumberInfo; |
- var script = %MessageGetScript(message); |
- var location = script.locationFromPosition(start_position, true); |
- if (location == null) return kNoLineNumberInfo; |
- return location.line + 1; |
-} |
- |
- |
-//Returns the offset of the given position within the containing line. |
-function GetColumnNumber(message) { |
- var script = %MessageGetScript(message); |
- var start_position = %MessageGetStartPosition(message); |
- var location = script.locationFromPosition(start_position, true); |
- if (location == null) return -1; |
- return location.column; |
-} |
- |
- |
-// Returns the source code line containing the given source |
-// position, or the empty string if the position is invalid. |
-function GetSourceLine(message) { |
- var script = %MessageGetScript(message); |
- var start_position = %MessageGetStartPosition(message); |
- var location = script.locationFromPosition(start_position, true); |
- if (location == null) return ""; |
- return location.sourceText(); |
-} |
- |
- |
-/** |
- * Find a line number given a specific source position. |
- * @param {number} position The source position. |
- * @return {number} 0 if input too small, -1 if input too large, |
- else the line number. |
- */ |
-function ScriptLineFromPosition(position) { |
- var lower = 0; |
- var upper = this.lineCount() - 1; |
- var line_ends = this.line_ends; |
- |
- // We'll never find invalid positions so bail right away. |
- if (position > line_ends[upper]) { |
- return -1; |
- } |
- |
- // This means we don't have to safe-guard indexing line_ends[i - 1]. |
- if (position <= line_ends[0]) { |
- return 0; |
- } |
- |
- // Binary search to find line # from position range. |
- while (upper >= 1) { |
- var i = (lower + upper) >> 1; |
- |
- if (position > line_ends[i]) { |
- lower = i + 1; |
- } else if (position <= line_ends[i - 1]) { |
- upper = i - 1; |
- } else { |
- return i; |
- } |
- } |
- |
- return -1; |
-} |
- |
-/** |
- * Get information on a specific source position. |
- * @param {number} position The source position |
- * @param {boolean} include_resource_offset Set to true to have the resource |
- * offset added to the location |
- * @return {SourceLocation} |
- * If line is negative or not in the source null is returned. |
- */ |
-function ScriptLocationFromPosition(position, |
- include_resource_offset) { |
- var line = this.lineFromPosition(position); |
- if (line == -1) return null; |
- |
- // Determine start, end and column. |
- var line_ends = this.line_ends; |
- var start = line == 0 ? 0 : line_ends[line - 1] + 1; |
- var end = line_ends[line]; |
- if (end > 0 && %_CallFunction(this.source, end - 1, StringCharAt) == '\r') { |
- end--; |
- } |
- var column = position - start; |
- |
- // Adjust according to the offset within the resource. |
- if (include_resource_offset) { |
- line += this.line_offset; |
- if (line == this.line_offset) { |
- column += this.column_offset; |
- } |
- } |
- |
- return new SourceLocation(this, position, line, column, start, end); |
-} |
- |
- |
-/** |
- * Get information on a specific source line and column possibly offset by a |
- * fixed source position. This function is used to find a source position from |
- * a line and column position. The fixed source position offset is typically |
- * used to find a source position in a function based on a line and column in |
- * the source for the function alone. The offset passed will then be the |
- * start position of the source for the function within the full script source. |
- * @param {number} opt_line The line within the source. Default value is 0 |
- * @param {number} opt_column The column in within the line. Default value is 0 |
- * @param {number} opt_offset_position The offset from the begining of the |
- * source from where the line and column calculation starts. |
- * Default value is 0 |
- * @return {SourceLocation} |
- * If line is negative or not in the source null is returned. |
- */ |
-function ScriptLocationFromLine(opt_line, opt_column, opt_offset_position) { |
- // Default is the first line in the script. Lines in the script is relative |
- // to the offset within the resource. |
- var line = 0; |
- if (!IS_UNDEFINED(opt_line)) { |
- line = opt_line - this.line_offset; |
- } |
- |
- // Default is first column. If on the first line add the offset within the |
- // resource. |
- var column = opt_column || 0; |
- if (line == 0) { |
- column -= this.column_offset; |
- } |
- |
- var offset_position = opt_offset_position || 0; |
- if (line < 0 || column < 0 || offset_position < 0) return null; |
- if (line == 0) { |
- return this.locationFromPosition(offset_position + column, false); |
- } else { |
- // Find the line where the offset position is located. |
- var offset_line = this.lineFromPosition(offset_position); |
- |
- if (offset_line == -1 || offset_line + line >= this.lineCount()) { |
- return null; |
- } |
- |
- return this.locationFromPosition( |
- this.line_ends[offset_line + line - 1] + 1 + column); // line > 0 here. |
- } |
-} |
- |
- |
-/** |
- * Get a slice of source code from the script. The boundaries for the slice is |
- * specified in lines. |
- * @param {number} opt_from_line The first line (zero bound) in the slice. |
- * Default is 0 |
- * @param {number} opt_to_column The last line (zero bound) in the slice (non |
- * inclusive). Default is the number of lines in the script |
- * @return {SourceSlice} The source slice or null of the parameters where |
- * invalid |
- */ |
-function ScriptSourceSlice(opt_from_line, opt_to_line) { |
- var from_line = IS_UNDEFINED(opt_from_line) ? this.line_offset |
- : opt_from_line; |
- var to_line = IS_UNDEFINED(opt_to_line) ? this.line_offset + this.lineCount() |
- : opt_to_line; |
- |
- // Adjust according to the offset within the resource. |
- from_line -= this.line_offset; |
- to_line -= this.line_offset; |
- if (from_line < 0) from_line = 0; |
- if (to_line > this.lineCount()) to_line = this.lineCount(); |
- |
- // Check parameters. |
- if (from_line >= this.lineCount() || |
- to_line < 0 || |
- from_line > to_line) { |
- return null; |
- } |
- |
- var line_ends = this.line_ends; |
- var from_position = from_line == 0 ? 0 : line_ends[from_line - 1] + 1; |
- var to_position = to_line == 0 ? 0 : line_ends[to_line - 1] + 1; |
- |
- // Return a source slice with line numbers re-adjusted to the resource. |
- return new SourceSlice(this, |
- from_line + this.line_offset, |
- to_line + this.line_offset, |
- from_position, to_position); |
-} |
- |
- |
-function ScriptSourceLine(opt_line) { |
- // Default is the first line in the script. Lines in the script are relative |
- // to the offset within the resource. |
- var line = 0; |
- if (!IS_UNDEFINED(opt_line)) { |
- line = opt_line - this.line_offset; |
- } |
- |
- // Check parameter. |
- if (line < 0 || this.lineCount() <= line) { |
- return null; |
- } |
- |
- // Return the source line. |
- var line_ends = this.line_ends; |
- var start = line == 0 ? 0 : line_ends[line - 1] + 1; |
- var end = line_ends[line]; |
- return %_CallFunction(this.source, start, end, StringSubstring); |
-} |
- |
- |
-/** |
- * Returns the number of source lines. |
- * @return {number} |
- * Number of source lines. |
- */ |
-function ScriptLineCount() { |
- // Return number of source lines. |
- return this.line_ends.length; |
-} |
- |
- |
-/** |
- * Returns the position of the nth line end. |
- * @return {number} |
- * Zero-based position of the nth line end in the script. |
- */ |
-function ScriptLineEnd(n) { |
- return this.line_ends[n]; |
-} |
- |
- |
-/** |
- * If sourceURL comment is available returns sourceURL comment contents. |
- * Otherwise, script name is returned. See |
- * http://fbug.googlecode.com/svn/branches/firebug1.1/docs/ReleaseNotes_1.1.txt |
- * and Source Map Revision 3 proposal for details on using //# sourceURL and |
- * deprecated //@ sourceURL comment to identify scripts that don't have name. |
- * |
- * @return {?string} script name if present, value for //# sourceURL or |
- * deprecated //@ sourceURL comment otherwise. |
- */ |
-function ScriptNameOrSourceURL() { |
- if (this.source_url) return this.source_url; |
- return this.name; |
-} |
- |
- |
-utils.SetUpLockedPrototype(Script, [ |
- "source", |
- "name", |
- "source_url", |
- "source_mapping_url", |
- "line_ends", |
- "line_offset", |
- "column_offset" |
- ], [ |
- "lineFromPosition", ScriptLineFromPosition, |
- "locationFromPosition", ScriptLocationFromPosition, |
- "locationFromLine", ScriptLocationFromLine, |
- "sourceSlice", ScriptSourceSlice, |
- "sourceLine", ScriptSourceLine, |
- "lineCount", ScriptLineCount, |
- "nameOrSourceURL", ScriptNameOrSourceURL, |
- "lineEnd", ScriptLineEnd |
- ] |
-); |
- |
- |
-/** |
- * Class for source location. A source location is a position within some |
- * source with the following properties: |
- * script : script object for the source |
- * line : source line number |
- * column : source column within the line |
- * position : position within the source |
- * start : position of start of source context (inclusive) |
- * end : position of end of source context (not inclusive) |
- * Source text for the source context is the character interval |
- * [start, end[. In most cases end will point to a newline character. |
- * It might point just past the final position of the source if the last |
- * source line does not end with a newline character. |
- * @param {Script} script The Script object for which this is a location |
- * @param {number} position Source position for the location |
- * @param {number} line The line number for the location |
- * @param {number} column The column within the line for the location |
- * @param {number} start Source position for start of source context |
- * @param {number} end Source position for end of source context |
- * @constructor |
- */ |
-function SourceLocation(script, position, line, column, start, end) { |
- this.script = script; |
- this.position = position; |
- this.line = line; |
- this.column = column; |
- this.start = start; |
- this.end = end; |
-} |
- |
- |
-/** |
- * Get the source text for a SourceLocation |
- * @return {String} |
- * Source text for this location. |
- */ |
-function SourceLocationSourceText() { |
- return %_CallFunction(this.script.source, |
- this.start, |
- this.end, |
- StringSubstring); |
-} |
- |
- |
-utils.SetUpLockedPrototype(SourceLocation, |
- ["script", "position", "line", "column", "start", "end"], |
- ["sourceText", SourceLocationSourceText] |
-); |
- |
- |
-/** |
- * Class for a source slice. A source slice is a part of a script source with |
- * the following properties: |
- * script : script object for the source |
- * from_line : line number for the first line in the slice |
- * to_line : source line number for the last line in the slice |
- * from_position : position of the first character in the slice |
- * to_position : position of the last character in the slice |
- * The to_line and to_position are not included in the slice, that is the lines |
- * in the slice are [from_line, to_line[. Likewise the characters in the slice |
- * are [from_position, to_position[. |
- * @param {Script} script The Script object for the source slice |
- * @param {number} from_line |
- * @param {number} to_line |
- * @param {number} from_position |
- * @param {number} to_position |
- * @constructor |
- */ |
-function SourceSlice(script, from_line, to_line, from_position, to_position) { |
- this.script = script; |
- this.from_line = from_line; |
- this.to_line = to_line; |
- this.from_position = from_position; |
- this.to_position = to_position; |
-} |
- |
-/** |
- * Get the source text for a SourceSlice |
- * @return {String} Source text for this slice. The last line will include |
- * the line terminating characters (if any) |
- */ |
-function SourceSliceSourceText() { |
- return %_CallFunction(this.script.source, |
- this.from_position, |
- this.to_position, |
- StringSubstring); |
-} |
- |
-utils.SetUpLockedPrototype(SourceSlice, |
- ["script", "from_line", "to_line", "from_position", "to_position"], |
- ["sourceText", SourceSliceSourceText] |
-); |
- |
- |
-function GetStackTraceLine(recv, fun, pos, isGlobal) { |
- return new CallSite(recv, fun, pos, false).toString(); |
-} |
- |
-// ---------------------------------------------------------------------------- |
-// Error implementation |
- |
-function CallSite(receiver, fun, pos, strict_mode) { |
- SET_PRIVATE(this, callSiteReceiverSymbol, receiver); |
- SET_PRIVATE(this, callSiteFunctionSymbol, fun); |
- SET_PRIVATE(this, callSitePositionSymbol, pos); |
- SET_PRIVATE(this, callSiteStrictSymbol, strict_mode); |
-} |
- |
-function CallSiteGetThis() { |
- return GET_PRIVATE(this, callSiteStrictSymbol) |
- ? UNDEFINED : GET_PRIVATE(this, callSiteReceiverSymbol); |
-} |
- |
-function CallSiteGetFunction() { |
- return GET_PRIVATE(this, callSiteStrictSymbol) |
- ? UNDEFINED : GET_PRIVATE(this, callSiteFunctionSymbol); |
-} |
- |
-function CallSiteGetPosition() { |
- return GET_PRIVATE(this, callSitePositionSymbol); |
-} |
- |
-function CallSiteGetTypeName() { |
- return GetTypeName(GET_PRIVATE(this, callSiteReceiverSymbol), false); |
-} |
- |
-function CallSiteIsToplevel() { |
- return %CallSiteIsToplevelRT(this); |
-} |
- |
-function CallSiteIsEval() { |
- return %CallSiteIsEvalRT(this); |
-} |
- |
-function CallSiteGetEvalOrigin() { |
- var script = %FunctionGetScript(GET_PRIVATE(this, callSiteFunctionSymbol)); |
- return FormatEvalOrigin(script); |
-} |
- |
-function CallSiteGetScriptNameOrSourceURL() { |
- return %CallSiteGetScriptNameOrSourceUrlRT(this); |
-} |
- |
-function CallSiteGetFunctionName() { |
- // See if the function knows its own name |
- return %CallSiteGetFunctionNameRT(this); |
-} |
- |
-function CallSiteGetMethodName() { |
- // See if we can find a unique property on the receiver that holds |
- // this function. |
- return %CallSiteGetMethodNameRT(this); |
-} |
- |
-function CallSiteGetFileName() { |
- return %CallSiteGetFileNameRT(this); |
-} |
- |
-function CallSiteGetLineNumber() { |
- return %CallSiteGetLineNumberRT(this); |
-} |
- |
-function CallSiteGetColumnNumber() { |
- return %CallSiteGetColumnNumberRT(this); |
-} |
- |
-function CallSiteIsNative() { |
- return %CallSiteIsNativeRT(this); |
-} |
- |
-function CallSiteIsConstructor() { |
- return %CallSiteIsConstructorRT(this); |
-} |
- |
-function CallSiteToString() { |
- var fileName; |
- var fileLocation = ""; |
- if (this.isNative()) { |
- fileLocation = "native"; |
- } else { |
- fileName = this.getScriptNameOrSourceURL(); |
- if (!fileName && this.isEval()) { |
- fileLocation = this.getEvalOrigin(); |
- fileLocation += ", "; // Expecting source position to follow. |
- } |
- |
- if (fileName) { |
- fileLocation += fileName; |
- } else { |
- // Source code does not originate from a file and is not native, but we |
- // can still get the source position inside the source string, e.g. in |
- // an eval string. |
- fileLocation += "<anonymous>"; |
- } |
- var lineNumber = this.getLineNumber(); |
- if (lineNumber != null) { |
- fileLocation += ":" + lineNumber; |
- var columnNumber = this.getColumnNumber(); |
- if (columnNumber) { |
- fileLocation += ":" + columnNumber; |
- } |
- } |
- } |
- |
- var line = ""; |
- var functionName = this.getFunctionName(); |
- var addSuffix = true; |
- var isConstructor = this.isConstructor(); |
- var isMethodCall = !(this.isToplevel() || isConstructor); |
- if (isMethodCall) { |
- var typeName = GetTypeName(GET_PRIVATE(this, callSiteReceiverSymbol), true); |
- var methodName = this.getMethodName(); |
- if (functionName) { |
- if (typeName && |
- %_CallFunction(functionName, typeName, StringIndexOf) != 0) { |
- line += typeName + "."; |
- } |
- line += functionName; |
- if (methodName && |
- (%_CallFunction(functionName, "." + methodName, StringIndexOf) != |
- 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 { |
- line += fileLocation; |
- addSuffix = false; |
- } |
- if (addSuffix) { |
- line += " (" + fileLocation + ")"; |
- } |
- return line; |
-} |
- |
-utils.SetUpLockedPrototype(CallSite, ["receiver", "fun", "pos"], [ |
- "getThis", CallSiteGetThis, |
- "getTypeName", CallSiteGetTypeName, |
- "isToplevel", CallSiteIsToplevel, |
- "isEval", CallSiteIsEval, |
- "getEvalOrigin", CallSiteGetEvalOrigin, |
- "getScriptNameOrSourceURL", CallSiteGetScriptNameOrSourceURL, |
- "getFunction", CallSiteGetFunction, |
- "getFunctionName", CallSiteGetFunctionName, |
- "getMethodName", CallSiteGetMethodName, |
- "getFileName", CallSiteGetFileName, |
- "getLineNumber", CallSiteGetLineNumber, |
- "getColumnNumber", CallSiteGetColumnNumber, |
- "isNative", CallSiteIsNative, |
- "getPosition", CallSiteGetPosition, |
- "isConstructor", CallSiteIsConstructor, |
- "toString", CallSiteToString |
-]); |
- |
- |
-function FormatEvalOrigin(script) { |
- var sourceURL = script.nameOrSourceURL(); |
- if (sourceURL) { |
- return sourceURL; |
- } |
- |
- var eval_origin = "eval at "; |
- if (script.eval_from_function_name) { |
- eval_origin += script.eval_from_function_name; |
- } else { |
- eval_origin += "<anonymous>"; |
- } |
- |
- var eval_from_script = script.eval_from_script; |
- if (eval_from_script) { |
- if (eval_from_script.compilation_type == COMPILATION_TYPE_EVAL) { |
- // eval script originated from another eval. |
- eval_origin += " (" + FormatEvalOrigin(eval_from_script) + ")"; |
- } else { |
- // eval script originated from "real" source. |
- if (eval_from_script.name) { |
- eval_origin += " (" + eval_from_script.name; |
- var location = eval_from_script.locationFromPosition( |
- script.eval_from_script_position, true); |
- if (location) { |
- eval_origin += ":" + (location.line + 1); |
- eval_origin += ":" + (location.column + 1); |
- } |
- eval_origin += ")"; |
- } else { |
- eval_origin += " (unknown source)"; |
- } |
- } |
- } |
- |
- return eval_origin; |
-} |
- |
- |
-function FormatErrorString(error) { |
- try { |
- return %_CallFunction(error, ErrorToString); |
- } catch (e) { |
- try { |
- return "<error: " + e + ">"; |
- } catch (ee) { |
- return "<error>"; |
- } |
- } |
-} |
- |
- |
-function GetStackFrames(raw_stack) { |
- var frames = new InternalArray(); |
- var sloppy_frames = raw_stack[0]; |
- for (var i = 1; i < raw_stack.length; i += 4) { |
- var recv = raw_stack[i]; |
- var fun = raw_stack[i + 1]; |
- var code = raw_stack[i + 2]; |
- var pc = raw_stack[i + 3]; |
- var pos = %_IsSmi(code) ? code : %FunctionGetPositionForOffset(code, pc); |
- sloppy_frames--; |
- frames.push(new CallSite(recv, fun, pos, (sloppy_frames < 0))); |
- } |
- return frames; |
-} |
- |
- |
-// Flag to prevent recursive call of Error.prepareStackTrace. |
-var formatting_custom_stack_trace = false; |
- |
- |
-function FormatStackTrace(obj, raw_stack) { |
- var frames = GetStackFrames(raw_stack); |
- if (IS_FUNCTION(GlobalError.prepareStackTrace) && |
- !formatting_custom_stack_trace) { |
- var array = []; |
- %MoveArrayContents(frames, array); |
- formatting_custom_stack_trace = true; |
- var stack_trace = UNDEFINED; |
- try { |
- stack_trace = GlobalError.prepareStackTrace(obj, array); |
- } catch (e) { |
- throw e; // The custom formatting function threw. Rethrow. |
- } finally { |
- formatting_custom_stack_trace = false; |
- } |
- return stack_trace; |
- } |
- |
- var lines = new InternalArray(); |
- lines.push(FormatErrorString(obj)); |
- for (var i = 0; i < frames.length; i++) { |
- var frame = frames[i]; |
- var line; |
- try { |
- line = frame.toString(); |
- } catch (e) { |
- try { |
- line = "<error: " + e + ">"; |
- } catch (ee) { |
- // Any code that reaches this point is seriously nasty! |
- line = "<error>"; |
- } |
- } |
- lines.push(" at " + line); |
- } |
- return %_CallFunction(lines, "\n", ArrayJoin); |
-} |
- |
- |
-function GetTypeName(receiver, requireConstructor) { |
- if (IS_NULL_OR_UNDEFINED(receiver)) return null; |
- var constructor = receiver.constructor; |
- if (!constructor) { |
- return requireConstructor ? null : |
- %_CallFunction(receiver, NoSideEffectsObjectToString); |
- } |
- var constructorName = constructor.name; |
- if (!constructorName) { |
- return requireConstructor ? null : |
- %_CallFunction(receiver, NoSideEffectsObjectToString); |
- } |
- return constructorName; |
-} |
- |
- |
-// Format the stack trace if not yet done, and return it. |
-// Cache the formatted stack trace on the holder. |
-var StackTraceGetter = function() { |
- var formatted_stack_trace = UNDEFINED; |
- var holder = this; |
- while (holder) { |
- var formatted_stack_trace = |
- GET_PRIVATE(holder, formattedStackTraceSymbol); |
- if (IS_UNDEFINED(formatted_stack_trace)) { |
- // No formatted stack trace available. |
- var stack_trace = GET_PRIVATE(holder, stackTraceSymbol); |
- if (IS_UNDEFINED(stack_trace)) { |
- // Neither formatted nor structured stack trace available. |
- // Look further up the prototype chain. |
- holder = %_GetPrototype(holder); |
- continue; |
- } |
- formatted_stack_trace = FormatStackTrace(holder, stack_trace); |
- SET_PRIVATE(holder, stackTraceSymbol, UNDEFINED); |
- SET_PRIVATE(holder, formattedStackTraceSymbol, formatted_stack_trace); |
- } |
- return formatted_stack_trace; |
- } |
- return UNDEFINED; |
-}; |
- |
- |
-// If the receiver equals the holder, set the formatted stack trace that the |
-// getter returns. |
-var StackTraceSetter = function(v) { |
- if (HAS_PRIVATE(this, stackTraceSymbol)) { |
- SET_PRIVATE(this, stackTraceSymbol, UNDEFINED); |
- SET_PRIVATE(this, formattedStackTraceSymbol, v); |
- } |
-}; |
- |
- |
-// Use a dummy function since we do not actually want to capture a stack trace |
-// when constructing the initial Error prototytpes. |
-var captureStackTrace = function() {}; |
- |
- |
-// Define special error type constructors. |
-function DefineError(global, f) { |
- // Store the error function in both the global object |
- // and the runtime object. The function is fetched |
- // from the runtime object when throwing errors from |
- // within the runtime system to avoid strange side |
- // effects when overwriting the error functions from |
- // user code. |
- var name = f.name; |
- %AddNamedProperty(global, name, f, DONT_ENUM); |
- // Configure the error function. |
- if (name == 'Error') { |
- // The prototype of the Error object must itself be an error. |
- // However, it can't be an instance of the Error object because |
- // it hasn't been properly configured yet. Instead we create a |
- // special not-a-true-error-but-close-enough object. |
- var ErrorPrototype = function() {}; |
- %FunctionSetPrototype(ErrorPrototype, GlobalObject.prototype); |
- %FunctionSetInstanceClassName(ErrorPrototype, 'Error'); |
- %FunctionSetPrototype(f, new ErrorPrototype()); |
- } else { |
- %FunctionSetPrototype(f, new GlobalError()); |
- %InternalSetPrototype(f, GlobalError); |
- } |
- %FunctionSetInstanceClassName(f, 'Error'); |
- %AddNamedProperty(f.prototype, 'constructor', f, DONT_ENUM); |
- %AddNamedProperty(f.prototype, 'name', name, DONT_ENUM); |
- %SetCode(f, function(m) { |
- if (%_IsConstructCall()) { |
- try { captureStackTrace(this, f); } catch (e) { } |
- // Define all the expected properties directly on the error |
- // object. This avoids going through getters and setters defined |
- // on prototype objects. |
- if (!IS_UNDEFINED(m)) { |
- %AddNamedProperty(this, 'message', TO_STRING(m), DONT_ENUM); |
- } |
- } else { |
- return new f(m); |
- } |
- }); |
- %SetNativeFlag(f); |
- return f; |
-}; |
- |
-GlobalError = DefineError(global, function Error() { }); |
-GlobalEvalError = DefineError(global, function EvalError() { }); |
-GlobalRangeError = DefineError(global, function RangeError() { }); |
-GlobalReferenceError = DefineError(global, function ReferenceError() { }); |
-GlobalSyntaxError = DefineError(global, function SyntaxError() { }); |
-GlobalTypeError = DefineError(global, function TypeError() { }); |
-GlobalURIError = DefineError(global, function URIError() { }); |
- |
-%AddNamedProperty(GlobalError.prototype, 'message', '', DONT_ENUM); |
- |
-function ErrorToString() { |
- if (!IS_SPEC_OBJECT(this)) { |
- throw MakeTypeError(kCalledOnNonObject, "Error.prototype.toString"); |
- } |
- |
- return %ErrorToStringRT(this); |
-} |
- |
-utils.InstallFunctions(GlobalError.prototype, DONT_ENUM, |
- ['toString', ErrorToString]); |
- |
-$errorToString = ErrorToString; |
- |
-MakeError = function(type, arg0, arg1, arg2) { |
- return MakeGenericError(GlobalError, type, arg0, arg1, arg2); |
-} |
- |
-MakeRangeError = function(type, arg0, arg1, arg2) { |
- return MakeGenericError(GlobalRangeError, type, arg0, arg1, arg2); |
-} |
- |
-MakeSyntaxError = function(type, arg0, arg1, arg2) { |
- return MakeGenericError(GlobalSyntaxError, type, arg0, arg1, arg2); |
-} |
- |
-MakeTypeError = function(type, arg0, arg1, arg2) { |
- return MakeGenericError(GlobalTypeError, type, arg0, arg1, arg2); |
-} |
- |
-MakeURIError = function() { |
- return MakeGenericError(GlobalURIError, kURIMalformed); |
-} |
- |
-// Boilerplate for exceptions for stack overflows. Used from |
-// Isolate::StackOverflow(). |
-var StackOverflowBoilerplate = MakeRangeError(kStackOverflow); |
-%DefineAccessorPropertyUnchecked(StackOverflowBoilerplate, 'stack', |
- StackTraceGetter, StackTraceSetter, |
- DONT_ENUM); |
- |
-// Define actual captureStackTrace function after everything has been set up. |
-captureStackTrace = function captureStackTrace(obj, cons_opt) { |
- // Define accessors first, as this may fail and throw. |
- ObjectDefineProperty(obj, 'stack', { get: StackTraceGetter, |
- set: StackTraceSetter, |
- configurable: true }); |
- %CollectStackTrace(obj, cons_opt ? cons_opt : captureStackTrace); |
-}; |
- |
-GlobalError.captureStackTrace = captureStackTrace; |
- |
-%InstallToContext([ |
- "error_function", GlobalError, |
- "eval_error_function", GlobalEvalError, |
- "get_stack_trace_line_fun", GetStackTraceLine, |
- "make_error_function", MakeGenericError, |
- "make_range_error", MakeRangeError, |
- "make_type_error", MakeTypeError, |
- "message_get_column_number", GetColumnNumber, |
- "message_get_line_number", GetLineNumber, |
- "message_get_source_line", GetSourceLine, |
- "no_side_effect_to_string_fun", NoSideEffectToString, |
- "range_error_function", GlobalRangeError, |
- "reference_error_function", GlobalReferenceError, |
- "stack_overflow_boilerplate", StackOverflowBoilerplate, |
- "syntax_error_function", GlobalSyntaxError, |
- "to_detail_string_fun", ToDetailString, |
- "type_error_function", GlobalTypeError, |
- "uri_error_function", GlobalURIError, |
-]); |
- |
-}); |