1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/**
STMethodContext.m
Copyright (c) 2002 Free Software Foundation
This file is part of the StepTalk project.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#import "STMethodContext.h"
#import "STBytecodes.h"
#import "STCompiledMethod.h"
#import "STLiterals.h"
#import "STStack.h"
#import <StepTalk/STEnvironment.h>
#import <StepTalk/STExterns.h>
#import <StepTalk/STObjectReference.h>
#import <StepTalk/STCompat.h>
#import <Foundation/NSArray.h>
#import <Foundation/NSDebug.h>
#import <Foundation/NSException.h>
@interface STMethodContext(STPrivateMethods)
- (void)_resolveExternReferences:(NSArray *)array
environment:(STEnvironment *)env;
@end
@implementation STMethodContext
+ methodContextWithMethod:(STCompiledMethod *)newMethod
environment:(STEnvironment *)env
{
return AUTORELEASE([[self alloc] initWithMethod:newMethod environment:env]);
}
- initWithMethod:(STCompiledMethod *)newMethod
environment:(STEnvironment *)env
{
unsigned int tempCount;
unsigned int i;
method = RETAIN(newMethod);
tempCount = [method temporariesCount];
temporaries = [[NSMutableArray alloc] initWithCapacity:tempCount];
for(i=0;i<tempCount;i++)
{
[temporaries insertObject:STNil atIndex:i];
}
return [super initWithStackSize:[method stackSize]];
}
- (void)dealloc
{
RELEASE(temporaries);
RELEASE(method);
[super dealloc];
}
- (BOOL)isBlockContext
{
return NO;
}
- (STMethodContext *)homeContext
{
return self;
}
- (void)setHomeContext:(STMethodContext *)context
{
[NSException raise:STInternalInconsistencyException
format:@"Should not set home context of method context"];
}
- (void)invalidate
{
RELEASE(method);
method = nil;
}
- (BOOL)isValid
{
return (method != nil);
}
- (STCompiledMethod*)method
{
return method;
}
- (void)setReceiver:anObject
{
receiver = anObject;
}
- (id)receiver
{
return receiver;
}
- (id)temporaryAtIndex:(unsigned)index
{
return [temporaries objectAtIndex:index];
}
- (void)setTemporary:anObject atIndex:(unsigned)index
{
if(!anObject)
{
anObject = STNil;
}
[temporaries replaceObjectAtIndex:index withObject:anObject];
}
- (NSString *)referenceNameAtIndex:(unsigned)index
{
return [[method namedReferences] objectAtIndex:index];
}
- (STBytecodes *)bytecodes
{
return [method bytecodes];
}
- (id)literalObjectAtIndex:(unsigned)index
{
return [method literalObjectAtIndex:index];
}
- (void)setArgumentsFromArray:(NSArray *)args
{
int i;
int count;
count = [args count];
for(i=0;i<count;i++)
{
[self setTemporary:[args objectAtIndex:i] atIndex:i];
}
}
@end
|
