QML: Make Heap::Object and all subclasses trivial

GCC6 might dead-store-eliminate out our secret write to Base::mmdata,
because it expects all memory content to be "undefined" before
constructor calls. Clang might take the same approach if the constructor
of Heap::Object is removed.

By making these structs trivial, it also makes them memcpy-able.

Change-Id: I055b2ad28311b997fbe059849ebda4d5894eaa9b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 19 insertions, 19 deletions

diff --git a/src/qml/jsruntime/qv4errorobject_p.h b/src/qml/jsruntime/qv4errorobject_p.h
index 206c7e6c59..b7a0889e08 100644
--- a/src/qml/jsruntime/qv4errorobject_p.h
+++ b/src/qml/jsruntime/qv4errorobject_p.h
@@ -73,9 +73,9 @@ struct ErrorObject : Object {
         URIError
     };
 
-    ErrorObject();
-    ErrorObject(const Value &message, ErrorType t = Error);
-    ErrorObject(const Value &message, const QString &fileName, int line, int column, ErrorType t = Error);
+    void init();
+    void init(const Value &message, ErrorType t = Error);
+    void init(const Value &message, const QString &fileName, int line, int column, ErrorType t = Error);
     void destroy() { delete stackTrace; }
 
     ErrorType errorType;
@@ -84,58 +84,58 @@ struct ErrorObject : Object {
 };
 
 struct EvalErrorObject : ErrorObject {
-    EvalErrorObject(const Value &message);
+    void init(const Value &message);
 };
 
 struct RangeErrorObject : ErrorObject {
-    RangeErrorObject(const Value &message);
+    void init(const Value &message);
 };
 
 struct ReferenceErrorObject : ErrorObject {
-    ReferenceErrorObject(const Value &message);
-    ReferenceErrorObject(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
+    void init(const Value &message);
+    void init(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
 };
 
 struct SyntaxErrorObject : ErrorObject {
-    SyntaxErrorObject(const Value &message);
-    SyntaxErrorObject(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
+    void init(const Value &message);
+    void init(const Value &msg, const QString &fileName, int lineNumber, int columnNumber);
 };
 
 struct TypeErrorObject : ErrorObject {
-    TypeErrorObject(const Value &message);
+    void init(const Value &message);
 };
 
 struct URIErrorObject : ErrorObject {
-    URIErrorObject(const Value &message);
+    void init(const Value &message);
 };
 
 struct ErrorCtor : Heap::FunctionObject {
-    ErrorCtor(QV4::ExecutionContext *scope);
-    ErrorCtor(QV4::ExecutionContext *scope, const QString &name);
+    void init(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope, const QString &name);
 };
 
 struct EvalErrorCtor : ErrorCtor {
-    EvalErrorCtor(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope);
 };
 
 struct RangeErrorCtor : ErrorCtor {
-    RangeErrorCtor(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope);
 };
 
 struct ReferenceErrorCtor : ErrorCtor {
-    ReferenceErrorCtor(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope);
 };
 
 struct SyntaxErrorCtor : ErrorCtor {
-    SyntaxErrorCtor(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope);
 };
 
 struct TypeErrorCtor : ErrorCtor {
-    TypeErrorCtor(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope);
 };
 
 struct URIErrorCtor : ErrorCtor {
-    URIErrorCtor(QV4::ExecutionContext *scope);
+    void init(QV4::ExecutionContext *scope);
 };
 
 }