Annotation of parser3/src/include/pa_vmframe.h, revision 1.12
1.1 paf 1: /*
1.12 ! paf 2: $Id: pa_vmframe.h,v 1.11 2001/03/06 15:02:47 paf Exp $
1.1 paf 3: */
4:
5: #ifndef PA_VMFRAME_H
6: #define PA_VMFRAME_H
7:
8: #include "pa_wcontext.h"
9: #include "pa_vunknown.h"
10: #include "pa_vjunction.h"
11:
12: class VMethodFrame : public WContext {
13: public: // Value
14:
15: // all: for error reporting after fail(), etc
1.11 paf 16: const char *type() const { return "method_frame"; }
1.1 paf 17: // frame: my or self_transparent
1.12 ! paf 18: Value *get_element(String& name) {
1.1 paf 19: Value *result=static_cast<Value *>(my.get(name));
20: if(!result)
21: result=self->get_element(name);
22: return result;
23: }
24: // frame: my or self_transparent
25: void put_element(const String& name, Value *value){
1.4 paf 26: if(!my.put_replace(name, value))
1.1 paf 27: self->put_element(name, value);
28: }
29:
1.6 paf 30: // frame: self_transparent
31: VClass* get_class() { return self->get_class(); }
32:
1.8 paf 33: // methodframe: self_transparent
1.9 paf 34: VAliased *get_aliased() { return self->get_aliased(); }
1.7 paf 35:
1.1 paf 36: public: // usage
37:
1.5 paf 38: VMethodFrame(Pool& apool, const Junction& ajunction) :
39: WContext(apool, 0 /* empty */, false /* not constructing */),
40:
1.1 paf 41: junction(ajunction),
42: store_param_index(0),
43: my(apool),
44: self(0) {
45: if(Method* method=junction.method) { // method junction?
46: // remember local var names
47: // those are flags that name is local == to be looked up in 'my'
48: for(int i=0; i<method->locals_names.size(); i++) {
49: my.put(
50: *static_cast<String *>(method->locals_names.get(i)),
51: NEW VUnknown(pool()));
52: }
53: }
54: }
55:
1.7 paf 56: void set_self(Value& aself) { self=&aself; }
1.1 paf 57:
58: void store_param(Value *value) {
59: Method *method=junction.method;
60: if(store_param_index==method->params_names.size())
61: THROW(0,0,
1.12 ! paf 62: &junction.self.name(),
! 63: "%s method '%s' accepts maximum %d parameters",
! 64: junction.self.type(),
! 65: method->name.cstr(),
! 66: method->params_names.size());
1.1 paf 67:
1.10 paf 68: String& name=*static_cast<String *>(method->params_names.get(store_param_index++));
69: my.put(name, value);
70: value->set_name(name);
1.1 paf 71: }
72: void fill_unspecified_params() {
73: Method *method=junction.method;
74: for(; store_param_index<method->params_names.size(); store_param_index++)
75: my.put(
76: *static_cast<String *>(method->params_names.get(store_param_index)),
77: NEW VUnknown(pool()));
78: }
79:
80: public:
81:
82: const Junction& junction;
83:
84: private:
85: int store_param_index;
86: Hash my;
1.7 paf 87: Value *self;
1.1 paf 88:
89: };
90:
91: #endif
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