/* -*- mode: objc; coding: utf-8 -*- */
/* Toilet Lisp, a Common Lisp subset for the Étoilé runtime.
* Copyright (C) 2008 Matthias Andreas Benkard.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#import "MLKBinaryStreamCharacterStream.h"
#import "MLKBinding.h"
#import "MLKCharacter.h"
#import "MLKCompiledClosure.h"
#import "MLKCons.h"
#import "MLKDynamicContext.h"
#import "MLKInterpretedClosure.h"
#import "MLKInterpreter.h"
#import "MLKLLVMCompiler.h"
#import "MLKNumber.h"
#import "MLKPackage.h"
#import "MLKRoot.h"
#import "MLKStreamStream.h"
#import "MLKSymbol.h"
#import "MLKInteger.h"
#import "MLKSingleFloat.h"
#import "MLKDoubleFloat.h"
#import "NSObject-MLKPrinting.h"
#import "globals.h"
#import "runtime-compatibility.h"
#import "util.h"
#import
#import
#import
#import
#import
#import
#import
#import
#import
#include
static NSMethodSignature *signature;
static MLKPackage *sys;
static MLKPackage *cl;
static id truify (BOOL value)
{
return (value ? (id) [cl intern:@"T"] : nil);
}
static id
car (id _data, id cons, id _marker)
{
return [cons car];
}
static id
cdr (id _data, id cons, id _marker)
{
return [cons cdr];
}
static id
rplaca (id _data, id cons, id value, id _marker)
{
[cons setCar:value];
return cons;
}
static id
rplacd (id _data, id cons, id value, id _marker)
{
[cons setCdr:value];
return cons;
}
static id
cons (id _data, id car, id cdr, id _marker)
{
return [MLKCons cons:car with:cdr];
}
static id
load (id _data, NSString *fileName, id _marker)
{
BOOL success;
int l, i;
NSInputStream *input = [NSInputStream inputStreamWithFileAtPath:fileName];
MLKBinaryStream *filestream = LAUTORELEASE ([[MLKStreamStream alloc]
initWithInputStream:input]);
MLKCharacterStream *stream = LAUTORELEASE ([[MLKBinaryStreamCharacterStream alloc]
initWithBinaryStream:filestream]);
MLKDynamicContext *oldContext = [MLKDynamicContext currentContext];
int level = MLKIntWithInteger ([oldContext
valueForSymbol:[sys intern:@"*LOAD-LEVEL*"]]);
MLKDynamicContext *ctx;
l = [fileName length];
MLKCharacterStream *ostream = [[MLKDynamicContext currentContext]
valueForSymbol:[cl intern:@"*STANDARD-OUTPUT*"]];
[ostream writeString:@";\n; "];
for (i = 0; i < 68 - 2*level; i++)
[ostream writeChar:'_'];
[ostream writeString:@"\n; /"];
for (i = 0; i < 30 - l/2 - level; i++)
[ostream writeChar:'-'];
[ostream writeString:[NSString stringWithFormat:@" LOAD: %s ", [fileName UTF8String]]];
for (i = 0; i < 30 - (l+1)/2 - level; i++)
[ostream writeChar:'-'];
[ostream writeString:@"\n; |\n"];
//NSLog (@"%d", [input hasBytesAvailable]);
[input open];
//NSLog (@"%d", [input hasBytesAvailable]);
ctx = [[MLKDynamicContext alloc]
initWithParent:oldContext
variables:nil
handlers:nil
restarts:nil
catchTags:nil
activeHandlerEnvironment:nil];
[ctx addValue:MLKIntegerWithInt(level + 1)
forSymbol:[sys intern:@"*LOAD-LEVEL*"]];
[ctx pushContext];
NS_DURING
{
success = [MLKInterpreter load:stream verbose:YES print:YES];
}
NS_HANDLER
{
[MLKDynamicContext popContext];
LRELEASE (ctx);
[input close];
[localException raise];
}
NS_ENDHANDLER;
[MLKDynamicContext popContext];
LRELEASE (ctx);
[input close];
[ostream writeString:@"; \\"];
for (i = 0; i < 68 - 2*level; i++)
[ostream writeChar:'_'];
[ostream writeString:@"\n; \n"];
return truify (success);
}
static id
require (id _data, id moduleName, id _marker)
{
NSBundle *toiletKit = [NSBundle bundleForClass:[MLKRoot class]];
NSString *path = [[toiletKit resourcePath]
stringByAppendingPathComponent:stringify(moduleName)];
return load (nil, path, MLKEndOfArgumentsMarker);
}
static id
eq (id _data, id x, id y, id _marker)
{
return truify (x == y);
}
static id
fixnum_eq (id _data, id x, id y, id _marker)
{
#ifdef NO_FIXNUMS
return truify ([x isEqual:y]);
#else
return truify (x == y);
#endif
}
static id
symbolp (id _data, id arg0, id _marker)
{
return truify (MLKInstanceP(arg0)
&& (!arg0 || [arg0 isKindOfClass:[MLKSymbol class]]));
}
static id
listp (id _data, id arg0, id _marker)
{
return truify (MLKInstanceP(arg0)
&& (!arg0 || [arg0 isKindOfClass:[MLKCons class]]));
}
static id
consp (id _data, id arg0, id _marker)
{
return truify (MLKInstanceP(arg0)
&& [arg0 isKindOfClass:[MLKCons class]]);
}
static id
atom (id _data, id arg0, id _marker)
{
return truify (!MLKInstanceP(arg0)
|| ![arg0 isKindOfClass:[MLKCons class]]);
}
static id
null (id _data, id arg0, id _marker)
{
return truify (!arg0);
}
static id
fixnump (id _data, id arg0, id _marker)
{
return truify (MLKFixnumP(arg0));
}
static id
add (id _data, MLKNumber *x, MLKNumber *y, id _marker)
{
return [nullify(x) add:nullify(y)];
}
static id
subtract (id _data, MLKNumber *x, MLKNumber *y, id _marker)
{
return [nullify(x) subtract:nullify(y)];
}
static id
multiply (id _data, MLKNumber *x, MLKNumber *y, id _marker)
{
return [nullify(x) multiplyWith:nullify(y)];
}
static id
divide (id _data, MLKNumber *x, MLKNumber *y, id _marker)
{
return [nullify(x) divideBy:nullify(y)];
}
static id
add_fixnums (id _data, id x, id y, id _marker)
{
return MLKAddFixnums (x, y);
}
static id
subtract_fixnums (id _data, id x, id y, id _marker)
{
return MLKSubtractFixnums (x, y);
}
static id
idivide_fixnums (id _data, id x, id y, id _marker)
{
return MLKIDivideFixnums (x, y);
}
static id
multiply_fixnums (id _data, id x, id y, id _marker)
{
return MLKMultiplyFixnums (x, y);
}
static id
list (id _data, ...)
{
id arg;
va_list ap;
id cons, tail;
cons = nil;
tail = nil;
va_start (ap, _data);
while ((arg = va_arg(ap, id)) != MLKEndOfArgumentsMarker)
{
if (!tail)
{
cons = tail = [MLKCons cons:arg with:nil];
}
else
{
[tail setCdr:[MLKCons cons:arg with:nil]];
tail = [tail cdr];
}
}
va_end (ap);
return cons;
}
#define VA_NEXT(AP, ARG, DEFAULT) \
((ARG == MLKEndOfArgumentsMarker) \
? (id)DEFAULT \
: (id)({ id __tmp = ARG; ARG = va_arg(AP, id); __tmp; }))
static id
macroexpand_1 (id _data, id form, id arg, ...)
{
va_list ap;
va_start (ap, arg);
MLKLexicalContext *context = VA_NEXT (ap, arg, nil);
id macrofun = nil;
va_end (ap);
if ([form isKindOfClass:[MLKCons class]]
&& (![form car] || [[form car] isKindOfClass:[MLKSymbol class]])
&& [context symbolNamesMacro:[form car]])
{
macrofun = [context macroForSymbol:[form car]];
}
else if ([form isKindOfClass:[MLKSymbol class]]
&& [context symbolNamesSymbolMacro:form])
{
macrofun = [context symbolMacroForSymbol:[form car]];
}
if (macrofun)
{
form = denullify ([[macrofun applyToArray:
[NSArray arrayWithObjects:
form, context, nil]]
objectAtIndex:0]);
}
return form;
}
static id
shadow (id _data, id symbols, id arg, ...)
{
va_list ap;
va_start (ap, arg);
id package = VA_NEXT (ap, arg, [[MLKDynamicContext currentContext]
valueForSymbol:
[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]]);
va_end (ap);
if (![symbols isKindOfClass:[MLKCons class]])
symbols = [MLKCons cons:symbols with:nil];
do
{
[package shadow:stringify([symbols car])];
}
while ((symbols = [symbols cdr]));
return [cl intern:@"T"];
}
static id
export (id _data, id symbols, id arg, ...)
{
va_list ap;
va_start (ap, arg);
id package = VA_NEXT (ap, arg, [[MLKDynamicContext currentContext]
valueForSymbol:
[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]]);
va_end (ap);
if (![symbols isKindOfClass:[MLKCons class]])
symbols = [MLKCons cons:symbols with:nil];
do
{
[package export:[symbols car]];
}
while ((symbols = [symbols cdr]));
return [cl intern:@"T"];
}
static id
unexport (id _data, id symbols, id arg, ...)
{
va_list ap;
va_start (ap, arg);
id package = VA_NEXT (ap, arg, [[MLKDynamicContext currentContext]
valueForSymbol:
[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]]);
va_end (ap);
if (![symbols isKindOfClass:[MLKCons class]])
symbols = [MLKCons cons:symbols with:nil];
do
{
[package unexport:[symbols car]];
}
while ((symbols = [symbols cdr]));
return [cl intern:@"T"];
}
static id
find_package (id _data, id name, id _marker)
{
MLKPackage *package = [MLKPackage findPackage:stringify(name)];
if (package)
{
return package;
}
else
{
[NSException raise:@"MLKNoSuchPackageError"
format:@"The package %@ does not exist",
MLKPrintToString(name)];
return nil;
}
}
static id
string (id _data, id x, id _marker)
{
return stringify (x);
}
static id
gensym (id _data, id arg, ...)
{
va_list ap;
va_start (ap, arg);
id x = VA_NEXT (ap, arg, @"G");
va_end (ap);
NSString *prefix;
NSString *suffix;
MLKBinding *gensymCounter = [[MLKDynamicContext currentContext]
bindingForSymbol:
[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*GENSYM-COUNTER*"]];
if ([x isKindOfClass:[NSString class]])
{
prefix = x;
suffix = MLKPrintToString([gensymCounter value]);
[gensymCounter
setValue:[(MLKInteger*)[gensymCounter value]
add:[MLKInteger integerWithInt:1]]];
}
else if ([x isKindOfClass:[MLKInteger class]])
{
// x must be an integer.
prefix = @"G";
suffix = MLKPrintToString(x);
}
else
{
[NSException raise:@"MLKTypeError"
format:@"%@ is not of type (OR INTEGER STRING).", x];
return nil;
}
return [MLKSymbol symbolWithName:
[NSString stringWithFormat:@"%@%@", prefix, suffix]
package:nil];
}
static id
make_symbol (id _data, id name, id _marker)
{
return [MLKSymbol symbolWithName:name package:nil];
}
static id
intern (id _data, id name, id arg, ...)
{
va_list ap;
va_start (ap, arg);
id package = VA_NEXT (ap, arg, [[MLKDynamicContext currentContext]
valueForSymbol:
[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]]);
va_end (ap);
return [package intern:name];
}
static id
import (id _data, id symbol, id arg, ...)
{
va_list ap;
va_start (ap, arg);
id package = VA_NEXT (ap, arg, [[MLKDynamicContext currentContext]
valueForSymbol:
[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]]);
va_end (ap);
[package import:symbol];
return [cl intern:@"T"];
}
static id
objc_class_of (id _data, id x, id _marker)
{
return [x class];
}
static id
objc_subclassp (id _data, id x, id y, id _marker)
{
return truify ([x isSubclassOfClass:y]);
}
static id
find_objc_class (id _data, id x, id _marker)
{
return NSClassFromString (x);
}
static id
ns_log (id _data, id x, id _marker)
{
NSString *description = MLKPrintToString(x);
NSLog (@"%@", description);
return x;
}
static id
symbol_name (id _data, id symbol, id _marker)
{
return (symbol ? (id)[symbol name] : (id)@"NIL");
}
static id
primitive_type_of (id _data, id object, id _marker)
{
if (!object)
{ return [cl intern:@"NULL"]; }
else if (MLKFixnumP (object))
{ return [cl intern:@"FIXNUM"]; }
else if ([object isKindOfClass:[MLKSymbol class]])
{ return [cl intern:@"SYMBOL"]; }
else if ([object isKindOfClass:[MLKCons class]])
{ return [cl intern:@"CONS"]; }
else if ([object isKindOfClass:[MLKDoubleFloat class]])
{ return [cl intern:@"DOUBLE-FLOAT"]; }
else if ([object isKindOfClass:[MLKSingleFloat class]])
{ return [cl intern:@"SINGLE-FLOAT"]; }
else if ([object isKindOfClass:[MLKInteger class]])
{ return [cl intern:@"INTEGER"]; }
else if ([object isKindOfClass:[MLKCharacter class]])
//FIXME: STANDARD-CHAR
{ return [cl intern:@"BASE-CHAR"]; }
else if ([object isKindOfClass:[MLKInterpretedClosure class]])
{ return [cl intern:@"FUNCTION"]; }
else if ([object isKindOfClass:[MLKLexicalContext class]])
{ return [sys intern:@"LEXICAL-CONTEXT"]; }
else if ([object isKindOfClass:[MLKBinding class]])
{ return [sys intern:@"BINDING"]; }
else if ([object isKindOfClass:[MLKPackage class]])
{ return [cl intern:@"PACKAGE"]; }
else if ([object isKindOfClass:[MLKBinaryStream class]])
{ return [cl intern:@"BINARY-STREAM"]; }
else if ([object isKindOfClass:[MLKCharacterStream class]])
{ return [cl intern:@"CHARACTER-STREAM"]; }
else if ([object isKindOfClass:[NSException class]])
{ return [sys intern:@"EXCEPTION"]; }
else if ([object isKindOfClass:[NSArray class]])
{ return [cl intern:@"ARRAY"]; }
else
{ return [cl intern:@"T"]; }
}
static id
send_by_name (id _data, id object, NSString *methodName, id arg, ...)
{
NSInvocation *invocation;
SEL selector;
NSMethodSignature *signature;
int i;
MLKForeignType returnType;
va_list ap;
if (MLKFixnumP (object))
object = [MLKInteger integerWithFixnum:object];
selector = NSSelectorFromString (methodName);
if (!selector)
{
[NSException raise:@"MLKNoSuchSelectorError"
format:@"Could not find a selector named %@", methodName];
}
signature = [object methodSignatureForSelector:selector];
if (!signature)
{
[NSException raise:@"MLKDoesNotUnderstandError"
format:@"%@ does not respond to selector %@", object, methodName];
}
invocation = [NSInvocation invocationWithMethodSignature:signature];
[invocation setSelector:selector];
[invocation setTarget:object];
i = 2;
va_start (ap, arg);
while (arg != MLKEndOfArgumentsMarker)
{
const char *objctype = [signature getArgumentTypeAtIndex:i];
MLKForeignType type = MLKForeignTypeWithObjectiveCType (objctype);
ffi_type *ffi_argtype = MLKFFITypeWithForeignType (type);
void *argbuf = alloca (ffi_argtype->size);
if (type == MLKT_INVALID)
[NSException raise:@"MLKInvalidArgumentError"
format:@"Don't know how to coerce %@ into type \"%s\".",
arg, objctype];
MLKSetForeignValueWithLispValue (argbuf, arg, type);
[invocation setArgument:argbuf atIndex:i];
arg = va_arg (ap, id);
i++;
}
va_end (ap);
[invocation invoke];
returnType = MLKForeignTypeWithObjectiveCType ([signature methodReturnType]);
if (returnType == MLKT_INVALID)
{
[NSException raise:@"MLKInvalidReturnTypeError"
format:@"Cannot handle an Objective-C return type of \"%s\" \
as provided by method %@ of object %@",
methodName, object, [signature methodReturnType]];
return nil;
}
else if (returnType == MLKT_VOID)
{
return nil;
}
else
{
ffi_type *ffi_rettype = MLKFFITypeWithForeignType (returnType);
void *returnValue = alloca (ffi_rettype->size);
[invocation getReturnValue:returnValue];
return MLKLispValueWithForeignValue (returnValue, returnType);
}
}
static id
declarations_and_doc_and_forms (id _data, id bodyAndDecls, id _marker)
{
id decls, doc, forms;
MLKSplitDeclarationsDocAndForms (&decls, &doc, &forms, bodyAndDecls, YES);
return [MLKCons cons:decls
with:[MLKCons cons:doc
with:[MLKCons cons:forms with:nil]]];
}
static id
declarations_and_forms (id _data, id bodyAndDecls, id _marker)
{
id decls, doc, forms;
MLKSplitDeclarationsDocAndForms (&decls, &doc, &forms, bodyAndDecls, NO);
return [MLKCons cons:decls
with:[MLKCons cons:forms with:nil]];
}
static id
compile (id _data, id object, id _marker)
{
if (!MLKDefaultCompiler)
[NSException raise:@"MLKNotImplementedException"
format:@"It seems as though there is no compiler here."];
//NSLog (@"Compiling lambda form.");
id thing = [MLKDefaultCompiler compile:object
inContext:[MLKLexicalContext globalContext]];
//NSLog (@"Compilation done.");
//NSLog (@"Compiled: %@", thing);
return thing;
}
static id
fset (id _data, id symbol, id value, id _marker)
{
[[MLKLexicalContext globalContext] addFunction:symbol];
[[MLKLexicalEnvironment globalEnvironment] addFunction:value
forSymbol:symbol];
return value;
}
static id
set (id _data, id symbol, id value, id _marker)
{
MLKDynamicContext *dynamicContext = [MLKDynamicContext currentContext];
if ([dynamicContext bindingForSymbol:symbol])
[dynamicContext setValue:value forSymbol:symbol];
else
[[MLKDynamicContext globalContext] addValue:value
forSymbol:symbol];
return value;
}
static id
macroset (id _data, id symbol, id value, id _marker)
{
[[MLKLexicalContext globalContext] addMacro:value
forSymbol:symbol];
return value;
}
static id
apply (id _data, id function, id arglist, id _marker)
{
// FIXME: Multiple values.
if (!function || [function isKindOfClass:[MLKSymbol class]])
{
function = [[MLKLexicalEnvironment globalEnvironment]
functionForSymbol:function];
}
NSArray *values = [function applyToArray:(arglist
? (id)[arglist array]
: (id)[NSArray array])];
return ([values count] > 0 ? [values objectAtIndex:0] : nil);
}
static id
eval (id _data, id evaluand, id _marker)
{
// FIXME: Multiple values.
NSArray *values = [MLKInterpreter eval:evaluand
inLexicalContext:
[MLKLexicalContext globalContext]
withEnvironment:
[MLKLexicalEnvironment globalEnvironment]];
return ([values count] > 0 ? [values objectAtIndex:0] : nil);
}
static void
register_cl (NSString *name, id (*function)())
{
MLKCompiledClosure *closure = [MLKCompiledClosure closureWithCode:function
data:NULL
length:0];
[[MLKLexicalContext globalContext]
addFunction:[cl intern:name]];
[[MLKLexicalEnvironment globalEnvironment]
addFunction:closure
forSymbol:[cl intern:name]];
}
static void
register_sys (NSString *name, id (*function)())
{
MLKCompiledClosure *closure = [MLKCompiledClosure closureWithCode:function
data:NULL
length:0];
[[MLKLexicalContext globalContext]
addFunction:[sys intern:name]];
[[MLKLexicalEnvironment globalEnvironment]
addFunction:closure
forSymbol:[sys intern:name]];
}
@implementation MLKRoot
+(void) initialize
{
signature = LRETAIN ([self methodSignatureForSelector:@selector(car:)]);
sys = [MLKPackage findPackage:@"TOILET-SYSTEM"];
cl = [MLKPackage findPackage:@"COMMON-LISP"];
register_sys (@"CAR", car);
register_sys (@"CDR", cdr);
register_sys (@"RPLACA", rplaca);
register_sys (@"RPLACD", rplacd);
register_sys (@"CONS", cons);
register_sys (@"LOAD", load);
register_sys (@"REQUIRE", require);
register_sys (@"EQ", eq);
register_sys (@"FIXNUM-EQ", fixnum_eq);
register_sys (@"SYMBOLP", symbolp);
register_sys (@"LISTP", listp);
register_sys (@"CONSP", consp);
register_sys (@"ATOM", atom);
register_sys (@"NULL", null);
register_sys (@"FIXNUMP", fixnump);
register_sys (@"ADD", add);
register_sys (@"SUBTRACT", subtract);
register_sys (@"MULTIPLY", multiply);
register_sys (@"DIVIDE", divide);
register_sys (@"ADD-FIXNUMS", add_fixnums);
register_sys (@"SUBTRACT-FIXNUMS", subtract_fixnums);
register_sys (@"MULTIPLY-FIXNUMS", multiply_fixnums);
register_sys (@"IDIVIDE-FIXNUMS", idivide_fixnums);
register_sys (@"LIST", (id (*)())list);
register_sys (@"MACROEXPAND-1", (id (*)())macroexpand_1);
register_sys (@"SHADOW", (id (*)())shadow);
register_sys (@"EXPORT", (id (*)())export);
register_sys (@"UNEXPORT", (id (*)())unexport);
register_sys (@"FIND-PACKAGE", find_package);
register_sys (@"STRING", string);
register_sys (@"GENSYM", (id (*)())gensym);
register_sys (@"MAKE-SYMBOL", make_symbol);
register_sys (@"INTERN", (id (*)())intern);
register_sys (@"IMPORT", (id (*)())import);
register_sys (@"OBJC-CLASS-OF", objc_class_of);
register_sys (@"OBJC-SUBCLASSP", objc_subclassp);
register_sys (@"FIND-OBJC-CLASS", find_objc_class);
register_sys (@"NS-LOG", ns_log);
register_sys (@"SYMBOL-NAME", symbol_name);
register_sys (@"PRIMITIVE-TYPE-OF", primitive_type_of);
register_sys (@"SEND-BY-NAME", (id (*)())send_by_name);
register_sys (@"DECLARATIONS-AND-DOC-AND-FORMS", declarations_and_doc_and_forms);
register_sys (@"DECLARATIONS-AND-FORMS", declarations_and_forms);
register_sys (@"COMPILE", compile);
register_sys (@"%FSET", fset);
register_sys (@"SET", set);
register_sys (@"%MACROSET", macroset);
register_sys (@"APPLY", apply);
register_sys (@"EVAL", eval);
}
+(void) registerBuiltins
{
// Do the real work in +initialize.
}
@end