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/**
STExecutionContext.m
Copyright (c) 2002 Free Software Foundation
This file is part of the StepTalk project.
*/
#import "STExecutionContext.h"
#import "STMethodContext.h"
#import "STStack.h"
#import <StepTalk/STCompat.h>
#import <Foundation/NSDebug.h>
#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
static unsigned nextId = 1;
@interface STExecutionContext(STPrivateMethods)
- (unsigned)contextId;
@end
@implementation STExecutionContext
- initWithStackSize:(unsigned)stackSize
{
[super init];
stack = [(STStack*)[STStack alloc] initWithSize:stackSize];
contextId = nextId ++;
return self;
}
- (void)dealloc
{
RELEASE(stack);
[super dealloc];
}
- (unsigned)contextId
{
return contextId;
}
- (NSString *)description
{
NSMutableString *str;
str = [NSMutableString stringWithFormat:
@"%@ %i (home %i)",
[self className],
contextId,
[[self homeContext] contextId]];
return str;
}
- (void)invalidate
{
[self subclassResponsibility:_cmd];
}
- (BOOL)isValid
{
[self subclassResponsibility:_cmd];
return NO;
}
- (unsigned)instructionPointer
{
return instructionPointer;
}
- (void)setInstructionPointer:(unsigned)value
{
instructionPointer = value;
}
- (STMethodContext *)homeContext
{
[self subclassResponsibility:_cmd];
return nil;
}
- (void)setHomeContext:(STMethodContext *)newContext
{
[self subclassResponsibility:_cmd];
}
- (STStack *)stack
{
return stack;
}
- (BOOL)isBlockContext;
{
[self subclassResponsibility:_cmd];
return NO;
}
- (id)temporaryAtIndex:(unsigned)index
{
[self subclassResponsibility:_cmd];
return nil;
}
- (void)setTemporary:anObject atIndex:(unsigned)index
{
[self subclassResponsibility:_cmd];
}
- (NSString *)referenceNameAtIndex:(unsigned)index
{
[self subclassResponsibility:_cmd];
return nil;
}
- (STBytecodes *)bytecodes
{
[self subclassResponsibility:_cmd];
return nil;
}
- (id)literalObjectAtIndex:(unsigned)index
{
[self subclassResponsibility:_cmd];
return nil;
}
- (id)receiver
{
[self subclassResponsibility:_cmd];
return nil;
}
@end
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