Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 339 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/API/JSValueRef.cpp b/Source/JavaScriptCore/API/JSValueRef.cpp
new file mode 100644
index 000000000..c89e267a4
--- /dev/null
+++ b/Source/JavaScriptCore/API/JSValueRef.cpp
@@ -0,0 +1,339 @@
+/*
+ * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "JSValueRef.h"
+
+#include "APICast.h"
+#include "APIShims.h"
+#include "JSCallbackObject.h"
+
+#include <runtime/JSGlobalObject.h>
+#include <runtime/JSONObject.h>
+#include <runtime/JSString.h>
+#include <runtime/LiteralParser.h>
+#include <runtime/Operations.h>
+#include <runtime/Protect.h>
+#include <runtime/UString.h>
+#include <runtime/JSValue.h>
+
+#include <wtf/Assertions.h>
+#include <wtf/text/StringHash.h>
+
+#include <algorithm> // for std::min
+
+using namespace JSC;
+
+::JSType JSValueGetType(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+
+    if (jsValue.isUndefined())
+        return kJSTypeUndefined;
+    if (jsValue.isNull())
+        return kJSTypeNull;
+    if (jsValue.isBoolean())
+        return kJSTypeBoolean;
+    if (jsValue.isNumber())
+        return kJSTypeNumber;
+    if (jsValue.isString())
+        return kJSTypeString;
+    ASSERT(jsValue.isObject());
+    return kJSTypeObject;
+}
+
+bool JSValueIsUndefined(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.isUndefined();
+}
+
+bool JSValueIsNull(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.isNull();
+}
+
+bool JSValueIsBoolean(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.isBoolean();
+}
+
+bool JSValueIsNumber(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.isNumber();
+}
+
+bool JSValueIsString(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.isString();
+}
+
+bool JSValueIsObject(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.isObject();
+}
+
+bool JSValueIsObjectOfClass(JSContextRef ctx, JSValueRef value, JSClassRef jsClass)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    
+    if (JSObject* o = jsValue.getObject()) {
+        if (o->inherits(&JSCallbackObject<JSGlobalObject>::s_info))
+            return static_cast<JSCallbackObject<JSGlobalObject>*>(o)->inherits(jsClass);
+        if (o->inherits(&JSCallbackObject<JSNonFinalObject>::s_info))
+            return static_cast<JSCallbackObject<JSNonFinalObject>*>(o)->inherits(jsClass);
+    }
+    return false;
+}
+
+bool JSValueIsEqual(JSContextRef ctx, JSValueRef a, JSValueRef b, JSValueRef* exception)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsA = toJS(exec, a);
+    JSValue jsB = toJS(exec, b);
+
+    bool result = JSValue::equal(exec, jsA, jsB); // false if an exception is thrown
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+    }
+    return result;
+}
+
+bool JSValueIsStrictEqual(JSContextRef ctx, JSValueRef a, JSValueRef b)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsA = toJS(exec, a);
+    JSValue jsB = toJS(exec, b);
+
+    return JSValue::strictEqual(exec, jsA, jsB);
+}
+
+bool JSValueIsInstanceOfConstructor(JSContextRef ctx, JSValueRef value, JSObjectRef constructor, JSValueRef* exception)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+
+    JSObject* jsConstructor = toJS(constructor);
+    if (!jsConstructor->structure()->typeInfo().implementsHasInstance())
+        return false;
+    bool result = jsConstructor->methodTable()->hasInstance(jsConstructor, exec, jsValue, jsConstructor->get(exec, exec->propertyNames().prototype)); // false if an exception is thrown
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+    }
+    return result;
+}
+
+JSValueRef JSValueMakeUndefined(JSContextRef ctx)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    return toRef(exec, jsUndefined());
+}
+
+JSValueRef JSValueMakeNull(JSContextRef ctx)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    return toRef(exec, jsNull());
+}
+
+JSValueRef JSValueMakeBoolean(JSContextRef ctx, bool value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    return toRef(exec, jsBoolean(value));
+}
+
+JSValueRef JSValueMakeNumber(JSContextRef ctx, double value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    // Our JSValue representation relies on a standard bit pattern for NaN. NaNs
+    // generated internally to JavaScriptCore naturally have that representation,
+    // but an external NaN might not.
+    if (isnan(value))
+        value = std::numeric_limits<double>::quiet_NaN();
+
+    return toRef(exec, jsNumber(value));
+}
+
+JSValueRef JSValueMakeString(JSContextRef ctx, JSStringRef string)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    return toRef(exec, jsString(exec, string->ustring()));
+}
+
+JSValueRef JSValueMakeFromJSONString(JSContextRef ctx, JSStringRef string)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+    UString str = string->ustring();
+    if (str.is8Bit()) {
+        LiteralParser<LChar> parser(exec, str.characters8(), str.length(), StrictJSON);
+        return toRef(exec, parser.tryLiteralParse());
+    }
+    LiteralParser<UChar> parser(exec, str.characters16(), str.length(), StrictJSON);
+    return toRef(exec, parser.tryLiteralParse());
+}
+
+JSStringRef JSValueCreateJSONString(JSContextRef ctx, JSValueRef apiValue, unsigned indent, JSValueRef* exception)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+    JSValue value = toJS(exec, apiValue);
+    UString result = JSONStringify(exec, value, indent);
+    if (exception)
+        *exception = 0;
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+        return 0;
+    }
+    return OpaqueJSString::create(result).leakRef();
+}
+
+bool JSValueToBoolean(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    return jsValue.toBoolean(exec);
+}
+
+double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+
+    double number = jsValue.toNumber(exec);
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+        number = std::numeric_limits<double>::quiet_NaN();
+    }
+    return number;
+}
+
+JSStringRef JSValueToStringCopy(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    
+    RefPtr<OpaqueJSString> stringRef(OpaqueJSString::create(jsValue.toString(exec)));
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+        stringRef.clear();
+    }
+    return stringRef.release().leakRef();
+}
+
+JSObjectRef JSValueToObject(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJS(exec, value);
+    
+    JSObjectRef objectRef = toRef(jsValue.toObject(exec));
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+        objectRef = 0;
+    }
+    return objectRef;
+}    
+
+void JSValueProtect(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJSForGC(exec, value);
+    gcProtect(jsValue);
+}
+
+void JSValueUnprotect(JSContextRef ctx, JSValueRef value)
+{
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+
+    JSValue jsValue = toJSForGC(exec, value);
+    gcUnprotect(jsValue);
+}