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Introduce a friendlier ClassBuilder syntax.

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This commit is contained in:
Charles Lowell 2012-05-03 14:34:51 -07:00
parent ba7f5dae8a
commit 9884c89074
3 changed files with 38 additions and 5 deletions
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21
ext/v8/rr.cc
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@ -14,4 +14,25 @@ namespace rr {
VALUE V8_C = rb_define_module_under(V8, "C"); VALUE V8_C = rb_define_module_under(V8, "C");
return rb_define_module_under(V8_C, name); return rb_define_module_under(V8_C, name);
} }
ClassBuilder::ClassBuilder(const char* name, VALUE superclass) {
this->value = defineClass(name, superclass);
}
ClassBuilder& ClassBuilder::defineMethod(const char* name, VALUE (*impl)(VALUE)) {
rb_define_method(this->value, name, (VALUE (*)(...))impl, 0);
return *this;
}
ClassBuilder& ClassBuilder::defineMethod(const char* name, VALUE (*impl)(VALUE, VALUE)) {
rb_define_method(this->value, name, (VALUE (*)(...))impl, 1);
return *this;
}
ClassBuilder& ClassBuilder::defineSingletonMethod(const char* name, VALUE (*impl)(VALUE)) {
rb_define_singleton_method(this->value, name, (VALUE (*)(...))impl, 0);
return *this;
}
ClassBuilder& ClassBuilder::defineSingletonMethod(const char* name, VALUE (*impl)(VALUE, VALUE)) {
rb_define_singleton_method(this->value, name, (VALUE (*)(...))impl, 1);
return *this;
}
} }

12
ext/v8/rr.h
View file

@ -124,6 +124,18 @@ public:
static void Init(); static void Init();
}; };
class ClassBuilder {
public:
ClassBuilder(const char* name, VALUE superclass = rb_cObject);
ClassBuilder& defineMethod(const char* name, VALUE (*impl)(VALUE));
ClassBuilder& defineMethod(const char* name, VALUE (*impl)(VALUE, VALUE));
ClassBuilder& defineSingletonMethod(const char* name, VALUE (*impl)(VALUE));
ClassBuilder& defineSingletonMethod(const char* name, VALUE (*impl)(VALUE, VALUE));
inline operator VALUE() {return this->value;}
private:
VALUE value;
};
VALUE defineClass(const char *name, VALUE superclass = rb_cObject); VALUE defineClass(const char *name, VALUE superclass = rb_cObject);
VALUE defineModule(const char *name); VALUE defineModule(const char *name);
} }

8
ext/v8/string.cc
View file

@ -25,8 +25,8 @@ VALUE String::Class;
void String::Init() { void String::Init() {
rb_gc_register_address(&Class); rb_gc_register_address(&Class);
Class = defineClass("String"); Class = ClassBuilder("String").
RR_DEFINE_SINGLETON_METHOD(Class, "New", &New, 1); defineSingletonMethod("New", &New).
RR_DEFINE_METHOD(Class, "Utf8Value", &Utf8Value, 0); defineMethod("Utf8Value", &Utf8Value);
}
} }
} //namespace rr