Update src/3rdparty/webkit from trunk.

Imported from 839d8709327f925aacb3b6362c06152594def97e
in branch qtwebkit-2.0 of repository
git://gitorious.org/+qtwebkit-developers/webkit/qtwebkit.git

Rubber-stamped-by: Simon Hausmann

1 files changed, 28 insertions, 48 deletions

diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/ExceptionHelpers.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/ExceptionHelpers.cpp
index 5bead90..b9c6319 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/ExceptionHelpers.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/ExceptionHelpers.cpp
@@ -58,7 +58,7 @@ JSValue createInterruptedExecutionException(JSGlobalData* globalData)
 
 static JSValue createError(ExecState* exec, ErrorType e, const char* msg)
 {
-    return Error::create(exec, e, msg, -1, -1, 0);
+    return Error::create(exec, e, msg, -1, -1, UString());
 }
 
 JSValue createStackOverflowError(ExecState* exec)
@@ -77,9 +77,7 @@ JSValue createUndefinedVariableError(ExecState* exec, const Identifier& ident, u
     int endOffset = 0;
     int divotPoint = 0;
     int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
-    UString message = "Can't find variable: ";
-    message.append(ident.ustring());
-    JSObject* exception = Error::create(exec, ReferenceError, message, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL());
+    JSObject* exception = Error::create(exec, ReferenceError, makeString("Can't find variable: ", ident.ustring()), line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL());
     exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete);
     exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete);
     exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete);
@@ -88,59 +86,36 @@ JSValue createUndefinedVariableError(ExecState* exec, const Identifier& ident, u
     
 static UString createErrorMessage(ExecState* exec, CodeBlock* codeBlock, int, int expressionStart, int expressionStop, JSValue value, UString error)
 {
-    if (!expressionStop || expressionStart > codeBlock->source()->length()) {
-        UString errorText = value.toString(exec);
-        errorText.append(" is ");
-        errorText.append(error);
-        return errorText;
-    }
+    if (!expressionStop || expressionStart > codeBlock->source()->length())
+        return makeString(value.toString(exec), " is ", error);
+    if (expressionStart < expressionStop)
+        return makeString("Result of expression '", codeBlock->source()->getRange(expressionStart, expressionStop), "' [", value.toString(exec), "] is ", error, ".");
 
-    UString errorText = "Result of expression ";
-    
-    if (expressionStart < expressionStop) {
-        errorText.append('\'');
-        errorText.append(codeBlock->source()->getRange(expressionStart, expressionStop));
-        errorText.append("' [");
-        errorText.append(value.toString(exec));
-        errorText.append("] is ");
-    } else {
-        // No range information, so give a few characters of context
-        const UChar* data = codeBlock->source()->data();
-        int dataLength = codeBlock->source()->length();
-        int start = expressionStart;
-        int stop = expressionStart;
-        // Get up to 20 characters of context to the left and right of the divot, clamping to the line.
-        // then strip whitespace.
-        while (start > 0 && (expressionStart - start < 20) && data[start - 1] != '\n')
-            start--;
-        while (start < (expressionStart - 1) && isStrWhiteSpace(data[start]))
-            start++;
-        while (stop < dataLength && (stop - expressionStart < 20) && data[stop] != '\n')
-            stop++;
-        while (stop > expressionStart && isStrWhiteSpace(data[stop]))
-            stop--;
-        errorText.append("near '...");
-        errorText.append(codeBlock->source()->getRange(start, stop));
-        errorText.append("...' [");
-        errorText.append(value.toString(exec));
-        errorText.append("] is ");
-    }
-    errorText.append(error);
-    errorText.append(".");
-    return errorText;
+    // No range information, so give a few characters of context
+    const UChar* data = codeBlock->source()->data();
+    int dataLength = codeBlock->source()->length();
+    int start = expressionStart;
+    int stop = expressionStart;
+    // Get up to 20 characters of context to the left and right of the divot, clamping to the line.
+    // then strip whitespace.
+    while (start > 0 && (expressionStart - start < 20) && data[start - 1] != '\n')
+        start--;
+    while (start < (expressionStart - 1) && isStrWhiteSpace(data[start]))
+        start++;
+    while (stop < dataLength && (stop - expressionStart < 20) && data[stop] != '\n')
+        stop++;
+    while (stop > expressionStart && isStrWhiteSpace(data[stop]))
+        stop--;
+    return makeString("Result of expression near '...", codeBlock->source()->getRange(start, stop), "...' [", value.toString(exec), "] is ", error, ".");
 }
 
 JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value, unsigned bytecodeOffset, CodeBlock* codeBlock)
 {
-    UString message = "not a valid argument for '";
-    message.append(op);
-    message.append("'");
-    
     int startOffset = 0;
     int endOffset = 0;
     int divotPoint = 0;
     int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
-    UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint, divotPoint + endOffset, value, message);
+    UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint, divotPoint + endOffset, value, makeString("not a valid argument for '", op, "'"));
     JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL());
     exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete);
     exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete);
@@ -213,4 +188,9 @@ JSObject* createNotAnObjectError(ExecState* exec, JSNotAnObjectErrorStub* error,
     return exception;
 }
 
+JSValue throwOutOfMemoryError(ExecState* exec)
+{
+    return throwError(exec, GeneralError, "Out of memory");
+}
+
 } // namespace JSC