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mal/objc/core.m

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Objective-C
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#import <Foundation/Foundation.h>
#import "mal_readline.h"
#import "types.h"
#import "reader.h"
#import "printer.h"
#import "malfunc.h"
#import "core.h"
NSObject * wrap_tf(BOOL val) {
return val ? [MalTrue alloc] : [MalFalse alloc];
}
@implementation Core
+ (NSDictionary *)ns {
return @{
@"=": ^(NSArray *args){
return wrap_tf(equal_Q(args[0], args[1]));
},
@"throw": ^(NSArray *args){
@throw args[0];
},
@"nil?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[NSNull class]]);
},
@"true?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[MalTrue class]]);
},
@"false?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[MalFalse class]]);
},
@"string?": ^(NSArray *args){
return wrap_tf(string_Q(args[0]));
},
@"symbol": ^(NSArray *args){
return [MalSymbol stringWithString:args[0]];
},
@"symbol?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[MalSymbol class]]);
},
@"keyword": ^(NSArray *args){
return [NSString stringWithFormat:@"\u029e%@", args[0]];
},
@"keyword?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[NSString class]] &&
![args[0] isKindOfClass:[MalSymbol class]] &&
!string_Q(args[0]));
},
@"pr-str": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
for (id e in args) { [res addObject:_pr_str(e,true)]; }
return [res componentsJoinedByString:@" "];
},
@"str": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
for (id e in args) { [res addObject:_pr_str(e,false)]; }
return [res componentsJoinedByString:@""];
},
@"prn": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
for (id e in args) { [res addObject:_pr_str(e,true)]; }
printf("%s\n", [[res componentsJoinedByString:@" "] UTF8String]);
fflush(stdout);
return [NSNull alloc];
},
@"println": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
for (id e in args) { [res addObject:_pr_str(e,false)]; }
printf("%s\n", [[res componentsJoinedByString:@" "] UTF8String]);
fflush(stdout);
return [NSNull alloc];
},
@"read-string": ^(NSArray *args){
return read_str(args[0]);
},
@"readline": ^(NSArray *args){
char * rawline = _readline((char *)[(NSString *)args[0] UTF8String]);
if (rawline) {
return (NSObject *)[NSString stringWithUTF8String:rawline];
} else {
return (NSObject *)[NSNull alloc];
}
},
@"slurp": ^(NSArray *args){
return [NSString stringWithContentsOfFile:args[0]
encoding: NSUTF8StringEncoding
error: NULL];
},
@"<": ^(NSArray *args){
return wrap_tf([args[0] intValue] < [args[1] intValue]);
},
@"<=": ^(NSArray *args){
return wrap_tf([args[0] intValue] <= [args[1] intValue]);
},
@">": ^(NSArray *args){
return wrap_tf([args[0] intValue] > [args[1] intValue]);
},
@">=": ^(NSArray *args){
return wrap_tf([args[0] intValue] >= [args[1] intValue]);
},
@"+": ^(NSArray *args){
return [NSNumber numberWithInt:[args[0] intValue] + [args[1] intValue]];
},
@"-": ^(NSArray *args){
return [NSNumber numberWithInt:[args[0] intValue] - [args[1] intValue]];
},
@"*": ^(NSArray *args){
return [NSNumber numberWithInt:[args[0] intValue] * [args[1] intValue]];
},
@"/": ^(NSArray *args){
return [NSNumber numberWithInt:[args[0] intValue] / [args[1] intValue]];
},
@"time-ms": ^(NSArray *args){
long long ms = [[NSDate date] timeIntervalSince1970] * 1000;
return [NSNumber numberWithUnsignedInteger:ms];
},
@"list": ^(NSArray *args){
return args;
},
@"list?": ^(NSArray *args){
return wrap_tf(list_Q(args[0]));
},
@"vector": ^(NSArray *args){
return [MalVector fromArray:args];
},
@"vector?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[MalVector class]]);
},
@"hash-map": ^(NSArray *args){
return hash_map(args);
},
@"map?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[NSDictionary class]]);
},
@"assoc": ^(NSArray *args){
NSDictionary * dict = args[0];
NSMutableDictionary * new_dict = [[NSMutableDictionary alloc]
initWithDictionary:dict
copyItems:NO];
return assoc_BANG(new_dict, _rest(args));
},
@"dissoc": ^(NSArray *args){
NSDictionary * dict = args[0];
NSMutableDictionary * new_dict = [[NSMutableDictionary alloc]
initWithDictionary:dict
copyItems:NO];
for (NSString * key in _rest(args)) {
[new_dict removeObjectForKey:key];
}
return new_dict;
},
@"get": ^(NSArray *args){
if ([args[0] isKindOfClass:[NSNull class]]) {
return (NSObject *)[NSNull alloc];
}
NSObject * res = ((NSDictionary *)args[0])[args[1]];
return res ? res : [NSNull alloc];
},
@"contains?": ^(NSArray *args){
if ([args[0] isKindOfClass:[NSNull class]]) {
return wrap_tf(false);
}
return wrap_tf(((NSDictionary *)args[0])[args[1]] != nil);
},
@"keys": ^(NSArray *args){
return [(NSDictionary *)args[0] allKeys];
},
@"vals": ^(NSArray *args){
return [(NSDictionary *)args[0] allValues];
},
@"sequential?": ^(NSArray *args){
return wrap_tf([args[0] isKindOfClass:[NSArray class]]);
},
@"cons": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
[res addObject:args[0]];
[res addObjectsFromArray:args[1]];
return res;
},
@"concat": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
for (NSArray * arr in args) {
[res addObjectsFromArray:arr];
}
return res;
},
@"nth": ^(NSArray *args){
NSArray * lst = (NSArray *)args[0];
int idx = [(NSNumber *)args[1] intValue];
if (idx < [lst count]) {
return lst[idx];
} else {
@throw @"nth: index out of range";
}
},
@"first": ^(NSArray *args){
if ([args[0] isKindOfClass:[NSNull class]]) {
return (NSObject *)[NSNull alloc];
}
NSArray * lst = (NSArray *)args[0];
if ([lst count] > 0) {
return (NSObject *)lst[0];
} else {
return (NSObject *)[NSNull alloc];
}
},
@"rest": ^(NSArray *args){
if ([args[0] isKindOfClass:[NSNull class]]) {
return @[];
}
NSArray * lst = (NSArray *)args[0];
if ([lst count] > 1) {
return _rest(lst);
} else {
return @[];
}
},
@"empty?": ^(NSArray *args){
if ([args[0] isKindOfClass:[NSNull class]]) {
return wrap_tf(true);
} else {
return wrap_tf([args[0] count] == 0);
}
},
@"count": ^(NSArray *args){
if ([args[0] isKindOfClass:[NSNull class]]) {
return @0;
} else {
return [NSNumber numberWithInt:[args[0] count]];
}
},
@"apply": ^(NSArray *args){
NSObject * (^ f)(NSArray *) = args[0];
NSMutableArray * fargs = [NSMutableArray array];
if ([args count] > 1) {
NSRange r = NSMakeRange(1, [args count]-2);
[fargs addObjectsFromArray:[args subarrayWithRange:r]];
}
[fargs addObjectsFromArray:(NSArray *)[args lastObject]];
return apply(f, fargs);
},
@"map": ^(NSArray *args){
NSObject * (^ f)(NSArray *) = args[0];
NSMutableArray * res = [NSMutableArray array];
for (NSObject * x in (NSArray *)args[1]) {
[res addObject:apply(f, @[x])];
}
return res;
},
@"conj": ^(NSArray *args){
NSMutableArray * res = [NSMutableArray array];
if ([args[0] isKindOfClass:[MalVector class]]) {
[res addObjectsFromArray:args[0]];
[res addObjectsFromArray:_rest(args)];
return (NSObject *)[MalVector arrayWithArray:res];
} else {
[res addObjectsFromArray:[[_rest(args) reverseObjectEnumerator]
allObjects]];
[res addObjectsFromArray:args[0]];
return (NSObject *)res;
}
},
@"seq": ^(NSArray *args){
if (list_Q(args[0])) {
if ([args[0] count] == 0) { return (NSObject *)[NSNull alloc]; }
return (NSObject *)args[0];
} else if ([args[0] isKindOfClass:[MalVector class]]) {
if ([args[0] count] == 0) { return (NSObject *)[NSNull alloc]; }
return (NSObject *)[NSArray arrayWithArray:args[0]];
} else if (string_Q(args[0])) {
NSString * str = args[0];
if ([str length] == 0) { return (NSObject *)[NSNull alloc]; }
NSMutableArray * res = [NSMutableArray array];
for (int i=0; i < [str length]; i++) {
char c = [str characterAtIndex:i];
[res addObject:[NSString stringWithFormat:@"%c", c]];
}
return (NSObject *)res;
} else if ([args[0] isKindOfClass:[NSNull class]]) {
return (NSObject *)args[0];
} else {
@throw @"seq: called on non-sequence";
}
},
@"meta": ^(NSArray *args){
if ([args[0] isKindOfClass:[MalFunc class]]) {
return [(MalFunc *)args[0] meta];
} else {
return (NSObject *)[NSNull alloc];
}
},
@"with-meta": ^(NSArray *args){
if ([args[0] isKindOfClass:[MalFunc class]]) {
MalFunc * cmf = [(MalFunc *)args[0] copy];
cmf.meta = args[1];
return cmf;
} else {
@throw @"with-meta: object type not supported";
}
},
@"atom": ^(NSArray *args){
return [MalAtom fromObject:args[0]];
},
@"atom?": ^(NSArray *args){
return wrap_tf(atom_Q(args[0]));
},
@"deref": ^(NSArray *args){
return [(MalAtom *)args[0] val];
},
@"reset!": ^(NSArray *args){
MalAtom * atm = (MalAtom *)args[0];
return atm.val = args[1];
},
@"swap!": ^(NSArray *args){
MalAtom * atm = (MalAtom *)args[0];
NSObject * (^ f)(NSArray *) = args[1];
NSMutableArray * fargs = [NSMutableArray array];
[fargs addObject:atm.val];
if ([args count] > 2) {
NSRange r = NSMakeRange(2, [args count]-2);
[fargs addObjectsFromArray:[args subarrayWithRange:r]];
}
return atm.val = apply(f, fargs);
},
};
}
@end
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