JensAyton

/* Copyright (c) 2011 Jens Ayton
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 

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@implementation Foo

- (id) foo
{
	return [self bar];
}


- (id) bar
{

JensAyton

#undef MIN
#define MIN__(A,B,C)    ({ __typeof__(A) __a##C = (A); __typeof__(B) __b##C = (B); __a##C < __b##C ? __a##C : __b##C; })
#define MIN_(A,B,C)     MIN__(A,B,C)
#define MIN(A,B)        MIN_(A,B,__COUNTER__)

#undef MAX
#define MAX__(A,B,C)    ({ __typeof__(A) __a##C = (A); __typeof__(B) __b##C = (B); __a##C < __b##C ? __b##C : __a##C; })
#define MAX_(A,B,C)     MAX__(A,B,C)
#define MAX(A,B)        MAX_(A,B,__COUNTER__)

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#ifndef format_h
#define format_h


#define reset   "0"
#define bold    "1"
#define red     "31"

#define format(first, ...) \
	"\e[" first join_format_codes(__VA_ARGS__) "m"

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// Expansion of JATExpandLiteral(@"foo: {foo}; bar: {bar}; baz: {baz}", foo, bar, baz)
JAT_DoExpandTemplateUsingMacroKeysAndValues(@"foo: {foo}; bar: {bar}; baz: {baz}", (JATNameArray){ @"foo", @"bar", @"baz", ((void*)0) }, (JATParameterArray){ JATCastParameter(foo), JATCastParameter(bar), JATCastParameter(baz), ((void*)0) }, 3)

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struct ifparams {
#if __has_feature(objc_arc)
	__unsafe_unretained
#endif
	dispatch_block_t then, otherwise;
};

static inline void iff(bool condition, struct ifparams params) {
	((condition?params.then:params.otherwise)?:^{})();
}

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extern "C" {
	// This is global, but you can call it what you like
	inline void MyPrefixedCFShow(const void *object) {
		// Redeclared system function is local scope and counts as extern "C"
		extern void CFShow(const void * object);
		CFShow(object);
	}
}

class DumbThing {

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// Sketch for multiple return values in Objective-C

// Method declaration:
- (id, NSError *) someMethod:param;

// Desugars to:
typedef struct { id a, NSError *b } __someMethodResult; // Obviously gensym/anonymous in real implementation
- (__someMethodResult) someMethod:param;

// Return type encoding would be "{?=@@}", anonymous struct of two objects.

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let opIncr: UInt8 = 43   // +
let opDecr: UInt8 = 45   // -
let opPrev: UInt8 = 60   // <
let opNext: UInt8 = 62   // >
let opFwd: UInt8 = 91    // [
let opBck: UInt8 = 93    // ]
let opOutput: UInt8 = 46 // .
let opInput: UInt8 = 44  // ,
let opStop: UInt8 = 0

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struct Test {}

extension Test: LosslessStringConvertible {
    init?(_ description: String) {
        print("unlabelled init")
    }

    var description: String { "Test" }
}