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/* Implementation of TLLInvocation: TLL Objective-C messaging.
This file is part of TL, Tiggr's Library.
Written by Tiggr <tiggr@es.ele.tue.nl>
Copyright (C) 1995, 1996 Pieter J. Schoenmakers
TL is distributed WITHOUT ANY WARRANTY.
See the file LICENSE in the TL distribution for details.
$Id: TLLInvocation.m,v 1.2 1998/02/23 14:17:30 tiggr Exp $ */
#import "tl/support.h"
#import "tl/TLLInvocation.h"
#import "tl/TLCons.h"
#import "tl/TLLSubroutine.h"
@implementation TLLInvocation
+(TLLInvocation *) invocationWithCompressedList: (TLCons *) list
length: (int) len
{
return ([[self gcAlloc] initWithCompressedList: list length: len]);
} /* +invocationWithCompressedList:length: */
+(TLLInvocation *) invocationWithList: (TLCons *) list length: (int) len
{
return ([[self gcAlloc] initWithList: list length: len]);
} /* +invocationWithList: */
-(void) dealloc
{
xfree (args);
} /* -dealloc */
-eval
{
id *a;
if (!num_args)
a = 0;
else
{
a = alloca (num_args * sizeof (*a));
memcpy (a, args, num_args * sizeof (*a));
}
return (tll_invoke_method (receiver, selector, a, num_args, YES));
} /* -eval */
-(void) gcReference
{
MARK (selector);
MARK (receiver);
if (num_args)
{
int i;
for (i = 0; i < num_args; i++)
MARK (args[i]);
}
} /* -gcReference */
-(id) initWithCompressedList: (TLCons *) list length: (int) len
{
DECONS (list, receiver, list);
ASGN_IVAR (receiver, receiver);
DECONS (list, selector, list);
ASGN_IVAR (selector, selector);
if (len < 2)
{
/* This is an error, but we won't report it. */
}
else if (len > 2)
{
int i;
num_args = len - 2;
args = xmalloc (num_args * sizeof (*args));
for (i = 0; i < num_args; i++)
{
DECONS (list, args[i], list);
ASGN_IVAR (args[i], args[i]);
}
}
return (self);
} /* -initWithCompressedList:length: */
-(id) initWithList: (TLCons *) list length: (int) len
{
int i, args_left, method_name_len, method_element_name_len;
TLString *method_element_name;
TLSymbol *method_element;
/* XXX Static buffer to build the method name. */
static int method_name_cap;
static char *method_name;
DECONS (list, receiver, list);
ASGN_IVAR (receiver, receiver);
DECONS (list, method_element, list);
args_left = num_args = (len - 1) / 2;
args = xmalloc (num_args * sizeof (*args));
method_name_len = i = 0;
do
{
method_element_name = [method_element symbolName];
method_element_name_len = [method_element_name length];
if (method_name_len + method_element_name_len >= method_name_cap)
{
method_name_cap = method_name_len + method_element_name_len + 1;
method_name = xrealloc (method_name, method_name_cap);
}
memcpy (method_name + method_name_len,
[method_element_name cString], method_element_name_len);
method_name_len += method_element_name_len;
if (!args_left)
break;
args_left--;
DECONS (list, args[i], list);
ASGN_IVAR (args[i], args[i]);
i++;
DECONS (list, method_element, list);
} while (args_left);
ASGN_IVAR (selector, [CO_TLSymbol symbolWithName:
[CO_TLString stringWithCString:
method_name length: method_name_len]]);
return (self);
} /* -initWithList: */
-(void) print: (id <TLOutputStream>) stream quoted: (BOOL) qp
{
int i;
[stream writeBytes: 2 fromBuffer: "(@"];
print (receiver, stream, qp);
[stream writeByte: ' '];
print (selector, stream, qp);
for (i = 0; i < num_args; i++)
{
[stream writeByte: ' '];
print (args[i], stream, qp);
}
[stream writeByte: ')'];
} /* -print:quoted: */
@end
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