57 lines
1.1 KiB
Objective-C
57 lines
1.1 KiB
Objective-C
//
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// MPFunction.h
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// MathPad
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//
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// Created by Kim Wittenburg on 18.04.14.
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// Copyright (c) 2014 Kim Wittenburg. All rights reserved.
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//
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@class MPFunction, MPExpression;
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@interface MPFunction : NSObject <NSCopying, NSCoding>
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#pragma mark Creation Methods
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- (instancetype)init;
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#pragma mark Working With the Expression Tree
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@property (nonatomic, weak) MPExpression *parent; // Documentation: Do not set
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- (void)childChanged:(MPExpression *)child
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atLocalIndexPath:(NSIndexPath *)indexPath;
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- (NSUInteger)numberOfChildren;
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- (MPExpression *)childAtIndex:(NSUInteger)index;
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- (void)setChild:(MPExpression *)child
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atIndex:(NSUInteger)index;
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#pragma mark Evaluating Functions
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- (double)doubleValue;
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#pragma mark Working With Functions
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- (BOOL)isEqualToFunction:(MPFunction *)aFunction;
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@end
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@interface MPFunction (MPFunctionExtensionMethods)
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#pragma mark Children
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// May be overridden for performance improvements
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- (NSArray *)children;
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#pragma mark Evaluating Functions
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- (float)floatValue;
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- (int)intValue;
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- (NSInteger)integerValue;
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- (long long)longLongValue;
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- (NSString *)description;
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- (NSUInteger)hash;
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@end
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