51 lines
2.0 KiB
Mathematica
51 lines
2.0 KiB
Mathematica
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// MTLReflection.m
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// Mantle
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//
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// Created by Justin Spahr-Summers on 2013-03-12.
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// Copyright (c) 2013 GitHub. All rights reserved.
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//
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#import "MTLReflection.h"
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#import <objc/runtime.h>
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SEL MTLSelectorWithKeyPattern(NSString *key, const char *suffix) {
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NSUInteger keyLength = [key maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding];
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NSUInteger suffixLength = strlen(suffix);
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char selector[keyLength + suffixLength + 1];
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BOOL success = [key getBytes:selector maxLength:keyLength usedLength:&keyLength encoding:NSUTF8StringEncoding options:0 range:NSMakeRange(0, key.length) remainingRange:NULL];
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if (!success) return NULL;
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memcpy(selector + keyLength, suffix, suffixLength);
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selector[keyLength + suffixLength] = '\0';
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return sel_registerName(selector);
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}
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SEL MTLSelectorWithCapitalizedKeyPattern(const char *prefix, NSString *key, const char *suffix) {
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NSUInteger prefixLength = strlen(prefix);
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NSUInteger suffixLength = strlen(suffix);
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NSString *initial = [key substringToIndex:1].uppercaseString;
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NSUInteger initialLength = [initial maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding];
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NSString *rest = [key substringFromIndex:1];
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NSUInteger restLength = [rest maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding];
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char selector[prefixLength + initialLength + restLength + suffixLength + 1];
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memcpy(selector, prefix, prefixLength);
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BOOL success = [initial getBytes:selector + prefixLength maxLength:initialLength usedLength:&initialLength encoding:NSUTF8StringEncoding options:0 range:NSMakeRange(0, initial.length) remainingRange:NULL];
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if (!success) return NULL;
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success = [rest getBytes:selector + prefixLength + initialLength maxLength:restLength usedLength:&restLength encoding:NSUTF8StringEncoding options:0 range:NSMakeRange(0, rest.length) remainingRange:NULL];
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if (!success) return NULL;
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memcpy(selector + prefixLength + initialLength + restLength, suffix, suffixLength);
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selector[prefixLength + initialLength + restLength + suffixLength] = '\0';
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return sel_registerName(selector);
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}
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