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-rw-r--r--src/builtins/builtins-promise.cc12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/builtins/builtins-promise.cc b/src/builtins/builtins-promise.cc
index 0d0238d2..1fb12902 100644
--- a/src/builtins/builtins-promise.cc
+++ b/src/builtins/builtins-promise.cc
@@ -98,6 +98,10 @@ Node* PromiseBuiltinsAssembler::NewPromiseCapability(Node* context,
debug_event = TrueConstant();
}
+ Label if_not_constructor(this, Label::kDeferred);
+ GotoIf(TaggedIsSmi(constructor), &if_not_constructor);
+ GotoIfNot(IsConstructorMap(LoadMap(constructor)), &if_not_constructor);
+
Node* native_context = LoadNativeContext(context);
Node* map = LoadRoot(Heap::kJSPromiseCapabilityMapRootIndex);
@@ -182,6 +186,13 @@ Node* PromiseBuiltinsAssembler::NewPromiseCapability(Node* context,
Unreachable();
}
+ Bind(&if_not_constructor);
+ {
+ Node* const message_id = SmiConstant(MessageTemplate::kNotConstructor);
+ CallRuntime(Runtime::kThrowTypeError, context, message_id, constructor);
+ Unreachable();
+ }
+
Bind(&out);
return var_result.value();
}
@@ -310,6 +321,7 @@ Node* PromiseBuiltinsAssembler::SpeciesConstructor(Node* context, Node* object,
// 7. If IsConstructor(S) is true, return S.
Label throw_error(this);
+ GotoIf(TaggedIsSmi(species), &throw_error);
Node* species_bitfield = LoadMapBitField(LoadMap(species));
GotoIfNot(Word32Equal(Word32And(species_bitfield,
Int32Constant((1 << Map::kIsConstructor))),