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/**
STBlockContext.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 "STBlockContext.h"
#import "STStack.h"
#import "STBytecodeInterpreter.h"
#import "STBytecodes.h"
#import "STMethodContext.h"
#import <StepTalk/STExterns.h>
#import <StepTalk/STCompat.h>
#import <Foundation/NSDebug.h>
#import <Foundation/NSException.h>
#import <Foundation/NSString.h>
@implementation STBlockContext
- initWithInterpreter:(STBytecodeInterpreter *)anInterpreter
initialIP:(unsigned)pointer
stackSize:(unsigned)size
{
[super initWithStackSize:size];
interpreter = RETAIN(anInterpreter);
initialIP = pointer;
instructionPointer = initialIP;
return self;
}
- (void)dealloc
{
RELEASE(interpreter);
[super dealloc];
}
- (BOOL)isBlockContext
{
return YES;
}
- (void)setHomeContext:(STMethodContext *)context
{
ASSIGN(homeContext,context);
}
- (STMethodContext *)homeContext
{
return homeContext;
}
- (void)invalidate
{
[self setHomeContext:nil];
}
- (BOOL)isValid
{
return [homeContext isValid];
}
- (unsigned)initialIP
{
return initialIP;
}
- temporaryAtIndex:(unsigned)index;
{
return [homeContext temporaryAtIndex:index];
}
- (void)setTemporary:anObject atIndex:(unsigned)index;
{
[homeContext setTemporary:anObject atIndex:index];
}
- (NSString *)referenceNameAtIndex:(unsigned)index
{
return [homeContext referenceNameAtIndex:index];
}
- (STBytecodes *)bytecodes
{
return [homeContext bytecodes];
}
- (id)literalObjectAtIndex:(unsigned)index
{
return [homeContext literalObjectAtIndex:index];
}
- (id)receiver
{
return [homeContext receiver];
}
- (void)resetInstructionPointer
{
instructionPointer = initialIP;
}
@end
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