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1.1 paf 1: /*
2: Parser
3: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.2 paf 4: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.1 paf 5:
1.3 ! paf 6: $Id: pa_vclass.h,v 1.2 2001/03/11 08:16:38 paf Exp $
1.1 paf 7: */
8:
9: #ifndef PA_VCLASS_H
10: #define PA_VCLASS_H
11:
12: #include "pa_valiased.h"
13: #include "pa_vhash.h"
14: #include "pa_vjunction.h"
15:
16: #define CLASS_NAME "CLASS"
17: #define BASE_NAME "BASE"
18:
19: class VClass : public VAliased {
20: public: // Value
21:
22: // all: for error reporting after fail(), etc
23: const char *type() const { return "class"; }
24:
25: // object_class: (field)=STATIC.value;(STATIC)=hash;(method)=method_ref with self=object_class
26: Value *get_element(const String& aname);
27:
28: // object_class, operator_class: (field)=value - static values only
29: void put_element(const String& name, Value *value);
30:
31: // object_class, object_instance: object_class
32: VClass *get_class() { return this; }
33:
34: public: // usage
35:
36: VClass(Pool& apool) : VAliased(apool, *this),
37: fbase(0),
38: ffields(apool),
39: fmethods(apool) {
40: }
41:
42: void add_method(const String& name, Method& method) {
43: fmethods.put(name, &method);
44: }
1.3 ! paf 45: void add_native_method(
! 46: const char *cstr_name,
! 47: Native_code_ptr native_code,
! 48: int min_numbered_params_count, int max_numbered_params_count);
1.1 paf 49: // Hash& methods() { return fmethods; }
50:
51: void set_base(VClass& abase) {
52: // remember the guy
53: fbase=&abase;
54: }
55: VClass *base() { return fbase; }
56:
57: bool is_or_derived_from(VClass& vclass) {
58: return
59: this==&vclass ||
60: fbase && fbase->is_or_derived_from(vclass);
61: }
62:
63: Junction *get_junction(VAliased& self, const String& name) {
64: if(Method *method=static_cast<Method *>(fmethods.get(name)))
65: return NEW Junction(pool(), self, this, method, 0,0,0,0);
66: if(fbase)
67: return fbase->get_junction(self, name);
68: return 0;
69: }
70:
71: void set_field(const String& name, Value *value) {
72: value->set_name(name);
73: if(fbase && fbase->replace_field(name, value))
74: return;
75:
76: ffields.put(name, value);
77: }
78:
79: private:
80:
81: Value *get_field(const String& name) {
82: Value *result=static_cast<Value *>(ffields.get(name));
83: if(!result && fbase)
84: result=fbase->get_field(name);
85: return result;
86: }
87:
88: bool replace_field(const String& name, Value *value) {
89: return
90: (fbase && fbase->replace_field(name, value)) ||
91: ffields.put_replace(name, value);
92: }
93:
94: private:
95:
96: VClass *fbase;
97: Hash ffields;
98: Hash fmethods;
99: };
100:
101: #endif