}
-void FullCodeGenerator::EmitIsNativeOrStrictMode(ZoneList<Expression*>* args) {
- ASSERT(args->length() == 1);
-
- // Load the function into r0.
- VisitForAccumulatorValue(args->at(0));
-
- // Prepare for the test.
- Label materialize_true, materialize_false;
- Label* if_true = NULL;
- Label* if_false = NULL;
- Label* fall_through = NULL;
- context()->PrepareTest(&materialize_true, &materialize_false,
- &if_true, &if_false, &fall_through);
-
- // Test for strict mode function.
- __ ldr(r1, FieldMemOperand(r0, JSFunction::kSharedFunctionInfoOffset));
- __ ldr(r1, FieldMemOperand(r1, SharedFunctionInfo::kCompilerHintsOffset));
- __ tst(r1, Operand(1 << (SharedFunctionInfo::kStrictModeFunction +
- kSmiTagSize)));
- __ b(ne, if_true);
-
- // Test for native function.
- __ tst(r1, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize)));
- __ b(ne, if_true);
-
- // Not native or strict-mode function.
- __ b(if_false);
-
- PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
- context()->Plug(if_true, if_false);
-}
-
-
void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
Handle<String> name = expr->name();
if (name->length() > 0 && name->Get(0) == '_') {
else return x < y ? -1 : 1;
};
}
- var receiver =
- %_IsNativeOrStrictMode(comparefn) ? void 0 : %GetGlobalReceiver();
+ var receiver = %GetDefaultReceiver(comparefn);
function InsertionSort(a, from, to) {
for (var i = from + 1; i < to; i++) {
}
-void HGraphBuilder::GenerateIsNativeOrStrictMode(CallRuntime* call) {
- return Bailout("inlined runtime function: IsNativeOrStrictMode");
-}
-
-
#undef CHECK_BAILOUT
#undef CHECK_ALIVE
}
-void FullCodeGenerator::EmitIsNativeOrStrictMode(ZoneList<Expression*>* args) {
- ASSERT(args->length() == 1);
-
- // Load the function into eax.
- VisitForAccumulatorValue(args->at(0));
-
- // Prepare for the test.
- Label materialize_true, materialize_false;
- Label* if_true = NULL;
- Label* if_false = NULL;
- Label* fall_through = NULL;
- context()->PrepareTest(&materialize_true, &materialize_false,
- &if_true, &if_false, &fall_through);
-
- // Test for strict mode function.
- __ mov(ecx, FieldOperand(eax, JSFunction::kSharedFunctionInfoOffset));
- __ test_b(FieldOperand(ecx, SharedFunctionInfo::kStrictModeByteOffset),
- 1 << SharedFunctionInfo::kStrictModeBitWithinByte);
- __ j(not_equal, if_true);
-
- // Test for native function.
- __ test_b(FieldOperand(ecx, SharedFunctionInfo::kNativeByteOffset),
- 1 << SharedFunctionInfo::kNativeBitWithinByte);
- __ j(not_equal, if_true);
-
- // Not native or strict-mode function.
- __ jmp(if_false);
-
- PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
- context()->Plug(if_true, if_false);
-}
-
-
void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
Handle<String> name = expr->name();
if (name->length() > 0 && name->Get(0) == '_') {
}
-void FullCodeGenerator::EmitIsNativeOrStrictMode(ZoneList<Expression*>* args) {
- ASSERT(args->length() == 1);
-
- // Load the function into v0.
- VisitForAccumulatorValue(args->at(0));
-
- // Prepare for the test.
- Label materialize_true, materialize_false;
- Label* if_true = NULL;
- Label* if_false = NULL;
- Label* fall_through = NULL;
- context()->PrepareTest(&materialize_true, &materialize_false,
- &if_true, &if_false, &fall_through);
-
- // Test for strict mode function.
- __ lw(a1, FieldMemOperand(v0, JSFunction::kSharedFunctionInfoOffset));
- __ lw(a1, FieldMemOperand(a1, SharedFunctionInfo::kCompilerHintsOffset));
- __ And(at, a1, Operand(1 << (SharedFunctionInfo::kStrictModeFunction +
- kSmiTagSize)));
- __ Branch(if_true, ne, at, Operand(zero_reg));
-
- // Test for native function.
- __ And(at, a1, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize)));
- __ Branch(if_true, ne, at, Operand(zero_reg));
-
- // Not native or strict-mode function.
- __ Branch(if_false);
-
- PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
- context()->Plug(if_true, if_false);
-}
-
-
void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
Handle<String> name = expr->name();
if (name->length() > 0 && name->Get(0) == '_') {
}
-RUNTIME_FUNCTION(MaybeObject*, Runtime_GetGlobalReceiver) {
- // Returns a real global receiver, not one of builtins object.
+RUNTIME_FUNCTION(MaybeObject*, Runtime_GetDefaultReceiver) {
+ NoHandleAllocation handle_free;
+ ASSERT(args.length() == 1);
+ CONVERT_CHECKED(JSFunction, function, args[0]);
+ SharedFunctionInfo* shared = function->shared();
+ if (shared->native() || shared->strict_mode()) {
+ return isolate->heap()->undefined_value();
+ }
+ // Returns undefined for strict or native functions, or
+ // the associated global receiver for "normal" functions.
+
Context* global_context =
- isolate->context()->global()->global_context();
+ function->context()->global()->global_context();
return global_context->global()->global_receiver();
}
F(ToSlowProperties, 1, 1) \
F(FinishArrayPrototypeSetup, 1, 1) \
F(SpecialArrayFunctions, 1, 1) \
- F(GetGlobalReceiver, 0, 1) \
+ F(GetDefaultReceiver, 1, 1) \
\
F(GetPrototype, 1, 1) \
F(IsInPrototypeChain, 2, 1) \
F(IsRegExpEquivalent, 2, 1) \
F(HasCachedArrayIndex, 1, 1) \
F(GetCachedArrayIndex, 1, 1) \
- F(FastAsciiArrayJoin, 2, 1) \
- F(IsNativeOrStrictMode, 1, 1)
+ F(FastAsciiArrayJoin, 2, 1)
// ----------------------------------------------------------------------------
// Compute the string to replace with.
if (IS_FUNCTION(replace)) {
- var receiver =
- %_IsNativeOrStrictMode(replace) ? void 0 : %GetGlobalReceiver();
+ var receiver = %GetDefaultReceiver(replace);
builder.add(%_CallFunction(receiver,
search,
start,
if (NUMBER_OF_CAPTURES(lastMatchInfo) == 2) {
var match_start = 0;
var override = new InternalArray(null, 0, subject);
- var receiver =
- %_IsNativeOrStrictMode(replace) ? void 0 : %GetGlobalReceiver();
+ var receiver = %GetDefaultReceiver(replace);
while (i < len) {
var elem = res[i];
if (%_IsSmi(elem)) {
// No captures, only the match, which is always valid.
var s = SubString(subject, index, endOfMatch);
// Don't call directly to avoid exposing the built-in global object.
- var receiver =
- %_IsNativeOrStrictMode(replace) ? void 0 : %GetGlobalReceiver();
+ var receiver = %GetDefaultReceiver(replace);
replacement =
%_CallFunction(receiver, s, index, subject, replace);
} else {
}
-void FullCodeGenerator::EmitIsNativeOrStrictMode(ZoneList<Expression*>* args) {
- ASSERT(args->length() == 1);
-
- // Load the function into rax.
- VisitForAccumulatorValue(args->at(0));
-
- // Prepare for the test.
- Label materialize_true, materialize_false;
- Label* if_true = NULL;
- Label* if_false = NULL;
- Label* fall_through = NULL;
- context()->PrepareTest(&materialize_true, &materialize_false,
- &if_true, &if_false, &fall_through);
-
- // Test for strict mode function.
- __ movq(rdx, FieldOperand(rax, JSFunction::kSharedFunctionInfoOffset));
- __ testb(FieldOperand(rdx, SharedFunctionInfo::kStrictModeByteOffset),
- Immediate(1 << SharedFunctionInfo::kStrictModeBitWithinByte));
- __ j(not_equal, if_true);
-
- // Test for native function.
- __ testb(FieldOperand(rdx, SharedFunctionInfo::kNativeByteOffset),
- Immediate(1 << SharedFunctionInfo::kNativeBitWithinByte));
- __ j(not_equal, if_true);
-
- // Not native or strict-mode function.
- __ jmp(if_false);
-
- PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false);
- context()->Plug(if_true, if_false);
-}
-
-
void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
Handle<String> name = expr->name();
if (name->length() > 0 && name->Get(0) == '_') {
context.Dispose();
}
+
+
+static void TestReceiver(Local<Value> expected_result,
+ Local<Value> expected_receiver,
+ const char* code) {
+ Local<Value> result = CompileRun(code);
+ CHECK(result->IsObject());
+ CHECK(expected_receiver->Equals(result->ToObject()->Get(1)));
+ CHECK(expected_result->Equals(result->ToObject()->Get(0)));
+}
+
+
+THREADED_TEST(ForeignFunctionReceiver) {
+ HandleScope scope;
+
+ // Create two contexts with different "id" properties ('i' and 'o').
+ // Call a function both from its own context and from a the foreign
+ // context, and see what "this" is bound to (returning both "this"
+ // and "this.id" for comparison).
+
+ Persistent<Context> foreign_context = v8::Context::New();
+ foreign_context->Enter();
+ Local<Value> foreign_function =
+ CompileRun("function func() { return { 0: this.id, "
+ " 1: this, "
+ " toString: function() { "
+ " return this[0];"
+ " }"
+ " };"
+ "}"
+ "var id = 'i';"
+ "func;");
+ CHECK(foreign_function->IsFunction());
+ foreign_context->Exit();
+
+ LocalContext context;
+
+ Local<String> password = v8_str("Password");
+ // Don't get hit by security checks when accessing foreign_context's
+ // global receiver (aka. global proxy).
+ context->SetSecurityToken(password);
+ foreign_context->SetSecurityToken(password);
+
+ Local<String> i = v8_str("i");
+ Local<String> o = v8_str("o");
+ Local<String> id = v8_str("id");
+
+ CompileRun("function ownfunc() { return { 0: this.id, "
+ " 1: this, "
+ " toString: function() { "
+ " return this[0];"
+ " }"
+ " };"
+ "}"
+ "var id = 'o';"
+ "ownfunc");
+ context->Global()->Set(v8_str("func"), foreign_function);
+
+ // Sanity check the contexts.
+ CHECK(i->Equals(foreign_context->Global()->Get(id)));
+ CHECK(o->Equals(context->Global()->Get(id)));
+
+ // Checking local function's receiver.
+ // Calling function using its call/apply methods.
+ TestReceiver(o, context->Global(), "ownfunc.call()");
+ TestReceiver(o, context->Global(), "ownfunc.apply()");
+ // Making calls through built-in functions.
+ TestReceiver(o, context->Global(), "[1].map(ownfunc)[0]");
+ CHECK(o->Equals(CompileRun("'abcbd'.replace(/b/,ownfunc)[1]")));
+ CHECK(o->Equals(CompileRun("'abcbd'.replace(/b/g,ownfunc)[1]")));
+ CHECK(o->Equals(CompileRun("'abcbd'.replace(/b/g,ownfunc)[3]")));
+ // Calling with environment record as base.
+ TestReceiver(o, context->Global(), "ownfunc()");
+ // Calling with no base.
+ TestReceiver(o, context->Global(), "(1,ownfunc)()");
+
+ // Checking foreign function return value.
+ // Calling function using its call/apply methods.
+ TestReceiver(i, foreign_context->Global(), "func.call()");
+ TestReceiver(i, foreign_context->Global(), "func.apply()");
+ // Calling function using another context's call/apply methods.
+ TestReceiver(i, foreign_context->Global(),
+ "Function.prototype.call.call(func)");
+ TestReceiver(i, foreign_context->Global(),
+ "Function.prototype.call.apply(func)");
+ TestReceiver(i, foreign_context->Global(),
+ "Function.prototype.apply.call(func)");
+ TestReceiver(i, foreign_context->Global(),
+ "Function.prototype.apply.apply(func)");
+ // Making calls through built-in functions.
+ TestReceiver(i, foreign_context->Global(), "[1].map(func)[0]");
+ // ToString(func()) is func()[0], i.e., the returned this.id.
+ CHECK(i->Equals(CompileRun("'abcbd'.replace(/b/,func)[1]")));
+ CHECK(i->Equals(CompileRun("'abcbd'.replace(/b/g,func)[1]")));
+ CHECK(i->Equals(CompileRun("'abcbd'.replace(/b/g,func)[3]")));
+
+ // TODO(1547): Make the following also return "i".
+ // Calling with environment record as base.
+ TestReceiver(o, context->Global(), "func()");
+ // Calling with no base.
+ TestReceiver(o, context->Global(), "(1,func)()");
+
+ foreign_context.Dispose();
+}
projects / platform / upstream / v8.git / commitdiff