Add basic support for EcmaScript classes

Most of the class creation is done inside the runtime
in the CreateClass method. Added a corresponding
instruction to the interpreter and jit.

The compiled data now contains an array of classes
containing the compile time generated layout of the class.

Currently, classes without an explicit constructor and
classes with inheritance are not supported.

Done-with: Yulong Bai <yulong.bai@qt.io>
Change-Id: I0185dcc1e3b0b8f44deff74e44a8262fc646aa9e
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/qml/compiler/qv4compiler_p.h b/src/qml/compiler/qv4compiler_p.h
index c40d49213a..944c44b1ff 100644
--- a/src/qml/compiler/qv4compiler_p.h
+++ b/src/qml/compiler/qv4compiler_p.h
@@ -72,6 +72,8 @@ struct JSClassMember;
 
 namespace Compiler {
 
+struct Class;
+
 struct Q_QML_PRIVATE_EXPORT StringTableGenerator {
     StringTableGenerator();
 
@@ -125,6 +127,7 @@ struct Q_QML_PRIVATE_EXPORT JSUnitGenerator {
 
     QV4::CompiledData::Unit *generateUnit(GeneratorOption option = GenerateWithStringTable);
     void writeFunction(char *f, Context *irFunction) const;
+    void writeClass(char *f, const Class &c);
     void writeBlock(char *f, Context *irBlock) const;
 
     StringTableGenerator stringTable;