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-rw-r--r--js/src/frontend/Parser.cpp17
-rw-r--r--js/src/frontend/Parser.h21
-rw-r--r--js/src/frontend/SharedContext.h1
-rw-r--r--js/src/jit-test/tests/class/bug1357506.js8
4 files changed, 14 insertions, 33 deletions
diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index ec4a975e6..01ab3f64c 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -547,7 +547,7 @@ FunctionBox::initWithEnclosingParseContext(ParseContext* enclosing, FunctionSynt
if (kind == ClassConstructor || kind == DerivedClassConstructor) {
auto stmt = enclosing->findInnermostStatement<ParseContext::ClassStatement>();
MOZ_ASSERT(stmt);
- stmt->setConstructorBox(this);
+ stmt->constructorBox = this;
if (kind == DerivedClassConstructor) {
setDerivedClassConstructor();
@@ -574,16 +574,6 @@ FunctionBox::initWithEnclosingParseContext(ParseContext* enclosing, FunctionSynt
}
void
-FunctionBox::resetForAbortedSyntaxParse(ParseContext* enclosing, FunctionSyntaxKind kind)
-{
- if (kind == ClassConstructor || kind == DerivedClassConstructor) {
- auto stmt = enclosing->findInnermostStatement<ParseContext::ClassStatement>();
- MOZ_ASSERT(stmt);
- stmt->clearConstructorBoxForAbortedSyntaxParse(this);
- }
-}
-
-void
FunctionBox::initWithEnclosingScope(Scope* enclosingScope)
{
if (!function()->isArrow()) {
@@ -3407,7 +3397,6 @@ Parser<FullParseHandler>::trySyntaxParseInnerFunction(ParseNode* pn, HandleFunct
// correctness.
parser->clearAbortedSyntaxParse();
usedNames.rewind(token);
- funbox->resetForAbortedSyntaxParse(pc, kind);
MOZ_ASSERT_IF(parser->context->isJSContext(),
!parser->context->asJSContext()->isExceptionPending());
break;
@@ -7078,7 +7067,7 @@ Parser<ParseHandler>::classDefinition(YieldHandling yieldHandling,
errorAt(nameOffset, JSMSG_BAD_METHOD_DEF);
return null();
}
- if (classStmt.constructorBox()) {
+ if (classStmt.constructorBox) {
errorAt(nameOffset, JSMSG_DUPLICATE_PROPERTY, "constructor");
return null();
}
@@ -7125,7 +7114,7 @@ Parser<ParseHandler>::classDefinition(YieldHandling yieldHandling,
// Amend the toStringEnd offset for the constructor now that we've
// finished parsing the class.
uint32_t classEndOffset = pos().end;
- if (FunctionBox* ctorbox = classStmt.constructorBox()) {
+ if (FunctionBox* ctorbox = classStmt.constructorBox) {
if (ctorbox->function()->isInterpretedLazy())
ctorbox->function()->lazyScript()->setToStringEnd(classEndOffset);
ctorbox->toStringEnd = classEndOffset;
diff --git a/js/src/frontend/Parser.h b/js/src/frontend/Parser.h
index 65e46a65e..7866bc4fd 100644
--- a/js/src/frontend/Parser.h
+++ b/js/src/frontend/Parser.h
@@ -85,29 +85,14 @@ class ParseContext : public Nestable<ParseContext>
}
};
- class ClassStatement : public Statement
+ struct ClassStatement : public Statement
{
- FunctionBox* constructorBox_;
+ FunctionBox* constructorBox;
- public:
explicit ClassStatement(ParseContext* pc)
: Statement(pc, StatementKind::Class),
- constructorBox_(nullptr)
+ constructorBox(nullptr)
{ }
-
- void clearConstructorBoxForAbortedSyntaxParse(FunctionBox* funbox) {
- MOZ_ASSERT(constructorBox_ == funbox);
- constructorBox_ = nullptr;
- }
-
- void setConstructorBox(FunctionBox* funbox) {
- MOZ_ASSERT(!constructorBox_);
- constructorBox_ = funbox;
- }
-
- FunctionBox* constructorBox() const {
- return constructorBox_;
- }
};
// The intra-function scope stack.
diff --git a/js/src/frontend/SharedContext.h b/js/src/frontend/SharedContext.h
index 3499a53fb..013444690 100644
--- a/js/src/frontend/SharedContext.h
+++ b/js/src/frontend/SharedContext.h
@@ -503,7 +503,6 @@ class FunctionBox : public ObjectBox, public SharedContext
void initFromLazyFunction();
void initStandaloneFunction(Scope* enclosingScope);
void initWithEnclosingParseContext(ParseContext* enclosing, FunctionSyntaxKind kind);
- void resetForAbortedSyntaxParse(ParseContext* enclosing, FunctionSyntaxKind kind);
ObjectBox* toObjectBox() override { return this; }
JSFunction* function() const { return &object->as<JSFunction>(); }
diff --git a/js/src/jit-test/tests/class/bug1357506.js b/js/src/jit-test/tests/class/bug1357506.js
new file mode 100644
index 000000000..52a5643e6
--- /dev/null
+++ b/js/src/jit-test/tests/class/bug1357506.js
@@ -0,0 +1,8 @@
+// Test that constructors that abort due to asm.js do not assert due to the
+// parser keeping track of the FunctionBox corresponding to the constructor.
+
+class a {
+ constructor() {
+ "use asm";
+ }
+}