JavaScriptCore-554.1.tar.gz

[apple/javascriptcore.git] / runtime / JSValue.cpp

diff --git a/runtime/JSValue.cpp b/runtime/JSValue.cpp
index f549bff5da6695fb3cb469b9bfcbb6d549e4c45a..39a4093d46b637ecd437774488f694705c5e3bba 100644 (file)
--- a/runtime/JSValue.cpp
+++ b/runtime/JSValue.cpp
@@ -23,29 +23,114 @@
 #include "config.h"
 #include "JSValue.h"
 
+#include "BooleanConstructor.h"
+#include "BooleanPrototype.h"
+#include "ExceptionHelpers.h"
+#include "JSGlobalObject.h"
 #include "JSFunction.h"
+#include "JSNotAnObject.h"
+#include "NumberObject.h"
 #include <wtf/MathExtras.h>
+#include <wtf/StringExtras.h>
 
 namespace JSC {
 
 static const double D32 = 4294967296.0;
 
 // ECMA 9.4
-double JSValuePtr::toInteger(ExecState* exec) const
+double JSValue::toInteger(ExecState* exec) const
 {
-    if (isInt32Fast())
-        return getInt32Fast();
+    if (isInt32())
+        return asInt32();
     double d = toNumber(exec);
     return isnan(d) ? 0.0 : trunc(d);
 }
 
-double JSValuePtr::toIntegerPreserveNaN(ExecState* exec) const
+double JSValue::toIntegerPreserveNaN(ExecState* exec) const
 {
-    if (isInt32Fast())
-        return getInt32Fast();
+    if (isInt32())
+        return asInt32();
     return trunc(toNumber(exec));
 }
 
+JSObject* JSValue::toObjectSlowCase(ExecState* exec) const
+{
+    ASSERT(!isCell());
+
+    if (isInt32() || isDouble())
+        return constructNumber(exec, asValue());
+    if (isTrue() || isFalse())
+        return constructBooleanFromImmediateBoolean(exec, asValue());
+    ASSERT(isUndefinedOrNull());
+    JSNotAnObjectErrorStub* exception = createNotAnObjectErrorStub(exec, isNull());
+    exec->setException(exception);
+    return new (exec) JSNotAnObject(exec, exception);
+}
+
+JSObject* JSValue::toThisObjectSlowCase(ExecState* exec) const
+{
+    ASSERT(!isCell());
+
+    if (isInt32() || isDouble())
+        return constructNumber(exec, asValue());
+    if (isTrue() || isFalse())
+        return constructBooleanFromImmediateBoolean(exec, asValue());
+    ASSERT(isUndefinedOrNull());
+    return exec->globalThisValue();
+}
+
+JSObject* JSValue::synthesizeObject(ExecState* exec) const
+{
+    ASSERT(!isCell());
+    if (isNumber())
+        return constructNumber(exec, asValue());
+    if (isBoolean())
+        return constructBooleanFromImmediateBoolean(exec, asValue());
+    
+    JSNotAnObjectErrorStub* exception = createNotAnObjectErrorStub(exec, isNull());
+    exec->setException(exception);
+    return new (exec) JSNotAnObject(exec, exception);
+}
+
+JSObject* JSValue::synthesizePrototype(ExecState* exec) const
+{
+    ASSERT(!isCell());
+    if (isNumber())
+        return exec->lexicalGlobalObject()->numberPrototype();
+    if (isBoolean())
+        return exec->lexicalGlobalObject()->booleanPrototype();
+
+    JSNotAnObjectErrorStub* exception = createNotAnObjectErrorStub(exec, isNull());
+    exec->setException(exception);
+    return new (exec) JSNotAnObject(exec, exception);
+}
+
+#ifndef NDEBUG
+char* JSValue::description()
+{
+    static const size_t size = 32;
+    static char description[size];
+    if (isInt32())
+        snprintf(description, size, "Int32: %d", asInt32());
+    else if (isDouble())
+        snprintf(description, size, "Double: %lf", asDouble());
+    else if (isCell())
+        snprintf(description, size, "Cell: %p", asCell());
+    else if (isTrue())
+        snprintf(description, size, "True");
+    else if (isFalse())
+        snprintf(description, size, "False");
+    else if (isNull())
+        snprintf(description, size, "Null");
+    else {
+        ASSERT(isUndefined());
+        snprintf(description, size, "Undefined");
+    }
+
+    return description;
+}
+#endif
+
 int32_t toInt32SlowCase(double d, bool& ok)
 {
     ok = true;
@@ -84,4 +169,9 @@ uint32_t toUInt32SlowCase(double d, bool& ok)
     return static_cast<uint32_t>(d32);
 }
 
+NEVER_INLINE double nonInlineNaN()
+{
+    return std::numeric_limits<double>::quiet_NaN();
+}
+
 } // namespace JSC