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39
40#ifndef QV4GENERATOROBJECT_P_H
41#define QV4GENERATOROBJECT_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include "qv4functionobject_p.h"
55#include "qv4stackframe_p.h"
56
57QT_BEGIN_NAMESPACE
58
59namespace QV4 {
60
61enum class GeneratorState {
62 Undefined,
63 SuspendedStart,
64 SuspendedYield,
65 Executing,
66 Completed
67};
68
69namespace Heap {
70
71struct GeneratorFunctionCtor : FunctionObject {
72 void init(QV4::ExecutionContext *scope);
73};
74
75struct GeneratorFunction : ArrowFunction {
76 void init(QV4::ExecutionContext *scope, Function *function, QV4::String *name = nullptr) {
77 ArrowFunction::init(scope, function, name);
78 }
79};
80
81struct MemberGeneratorFunction : MemberFunction {
82};
83
84struct GeneratorPrototype : FunctionObject {
85 void init();
86};
87
88#define GeneratorObjectMembers(class, Member) \
89 Member(class, Pointer, ExecutionContext *, context) \
90 Member(class, NoMark, GeneratorState, state) \
91 Member(class, NoMark, CppStackFrame, cppFrame) \
92 Member(class, Pointer, ArrayObject *, values) \
93 Member(class, Pointer, ArrayObject *, jsFrame)
94
95DECLARE_HEAP_OBJECT(GeneratorObject, Object) {
96 DECLARE_MARKOBJECTS(GeneratorObject);
97};
98
99}
100
101struct GeneratorFunctionCtor : FunctionCtor
102{
103 V4_OBJECT2(GeneratorFunctionCtor, FunctionCtor)
104
105 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
106 static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
107};
108
109struct GeneratorFunction : ArrowFunction
110{
111 V4_OBJECT2(GeneratorFunction, ArrowFunction)
112 V4_INTERNALCLASS(GeneratorFunction)
113
114 static Heap::FunctionObject *create(ExecutionContext *scope, Function *function);
115 static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
116};
117
118struct MemberGeneratorFunction : MemberFunction
119{
120 V4_OBJECT2(MemberGeneratorFunction, MemberFunction)
121 V4_INTERNALCLASS(MemberGeneratorFunction)
122
123 static Heap::FunctionObject *create(ExecutionContext *scope, Function *function, Object *homeObject, String *name);
124 static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
125};
126
127struct GeneratorPrototype : Object
128{
129 void init(ExecutionEngine *engine, Object *ctor);
130
131 static ReturnedValue method_next(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
132 static ReturnedValue method_return(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
133 static ReturnedValue method_throw(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
134};
135
136
137struct GeneratorObject : Object {
138 V4_OBJECT2(GeneratorObject, Object)
139 Q_MANAGED_TYPE(GeneratorObject)
140 V4_INTERNALCLASS(GeneratorObject)
141 V4_PROTOTYPE(generatorPrototype)
142
143 ReturnedValue resume(ExecutionEngine *engine, const Value &arg) const;
144};
145
146}
147
148QT_END_NAMESPACE
149
150#endif // QV4GENERATORFUNCTION_P_H
151
152

source code of qtdeclarative/src/qml/jsruntime/qv4generatorobject_p.h