7 #define NULL (null_entity)
13 /** Location entity was spawned from in source */
14 .string sourceLocFile;
17 entity __spawn(string _classname, string _sourceFile, int _sourceLine) {
18 entity this = _spawn();
19 this.classname = _classname;
20 this.sourceLocFile = _sourceFile;
21 this.sourceLocLine = _sourceLine;
27 #define entityclass(...) OVERLOAD(entityclass, __VA_ARGS__)
28 #define entityclass_1(name) entityclass_2(name, Object)
29 #ifndef QCC_SUPPORT_ENTITYCLASS
30 #define entityclass_2(name, base) typedef entity name
32 #define new(class) __spawn(#class, __FILE__, __LINE__)
34 #define entityclass_2(name, base) entityclass name : base {}
35 #define class(name) [[class(name)]]
36 #define new(class) ((class) __spawn(#class, __FILE__, __LINE__))
39 // Classes have a `spawn##cname(entity)` constructor
40 // The parameter is used across [[accumulate]] functions
42 // Macro to hide this implementation detail
43 #define NEW(cname, ...) \
44 OVERLOAD(spawn##cname, new(cname), ##__VA_ARGS__)
46 #define CONSTRUCTOR(cname, ...) \
47 cname OVERLOAD(spawn##cname, cname this, __VA_ARGS__)
52 void RegisterClasses() { }
53 ACCUMULATE_FUNCTION(__static_init, RegisterClasses)
55 #define VTBL(cname, base) \
57 entity cname##_vtbl; \
58 void cname##_vtbl_init() { \
59 cname e = new(vtbl); \
60 spawn##cname##_static(e); \
61 e.vtblname = #cname; \
62 /* Top level objects refer to themselves */ \
63 e.vtblbase = base##_vtbl ? base##_vtbl : e; \
66 ACCUMULATE_FUNCTION(RegisterClasses, cname##_vtbl_init)
68 #define INIT_STATIC(cname) [[accumulate]] void spawn##cname##_static(cname this)
69 #define INIT(cname) [[accumulate]] cname spawn##cname##_1(cname this)
71 #define CLASS(cname, base) \
72 entityclass(cname, base); \
73 class(cname) .bool instanceOf##cname; \
75 INIT_STATIC(cname) { \
77 copyentity(cname##_vtbl, this); \
80 spawn##base##_static(this); \
81 this.instanceOf##cname = true; \
84 /* Only statically initialize the current class, it contains everything it inherits */ \
85 if (cname##_vtbl.vtblname == this.classname) { \
86 spawn##cname##_static(this); \
87 this.classname = #cname; \
88 this.vtblname = string_null; \
89 this.vtblbase = cname##_vtbl; \
91 spawn##base##_1(this); \
94 #define METHOD(cname, name, prototype) \
95 class(cname) .prototype name; \
96 prototype cname##_##name; \
97 INIT_STATIC(cname) { this.name = cname##_##name; }
99 #define ATTRIB(cname, name, type, val) \
100 class(cname) .type name; \
101 INIT(cname) { this.name = val; }
103 #define ATTRIBARRAY(cname, name, type, cnt) \
104 class(cname) .type name[cnt];
106 #define ENDCLASS(cname) \
107 [[last]] INIT(cname) { return this; }
109 #define SUPER(cname) (cname##_vtbl.vtblbase)
111 #define spawn_static(this)
112 #define spawn_1(this)
114 CLASS(Object, ); ENDCLASS(Object)