143 lines
2.4 KiB
Objective-C
143 lines
2.4 KiB
Objective-C
//
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// MPFunction.m
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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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#import "MPFunction.h"
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#import "MPExpression.h"
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@implementation MPFunction
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#pragma mark Creation Methods
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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}
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return self;
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}
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#pragma mark Working With the Expression Tree
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- (void)childChanged:(MPExpression *)child atLocalIndexPath:(NSIndexPath *)indexPath
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{
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[self.parent functionSymbolChanged:self
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atLocalIndexPath:[indexPath indexPathByAddingIndex:0]];
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}
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- (NSUInteger)numberOfChildren
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{
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return 0;
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}
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- (MPExpression *)childAtIndex:(NSUInteger)index
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{
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return nil;
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}
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- (void)setChild:(MPExpression *)child
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atIndex:(NSUInteger)index
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{}
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#pragma mark Evaluating Functions
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- (double)doubleValue
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{
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return 0;
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}
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#pragma mark Working With Functions
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- (BOOL)isEqual:(id)object
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{
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if (self == object) {
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return YES;
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}
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if (object == nil) {
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return NO;
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}
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if (![object isKindOfClass:[MPFunction class]]) {
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return NO;
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}
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return [self isEqualToFunction:(MPFunction *)object];
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}
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- (BOOL)isEqualToFunction:(MPFunction *)aFunction
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{
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return [aFunction isMemberOfClass:[MPFunction class]] && [self isMemberOfClass:[MPFunction class]];
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}
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#pragma mark - NSCopying
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- (id)copyWithZone:(NSZone *)zone
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{
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return [[MPFunction allocWithZone:zone] init];
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}
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#pragma mark - NSCoding
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- (id)initWithCoder:(NSCoder *)aDecoder
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{
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self = [super init];
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if (self) {
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}
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return self;
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}
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- (void)encodeWithCoder:(NSCoder *)aCoder
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{}
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@end
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@implementation MPFunction (MPFunctionExtensionMethods)
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#pragma mark Children
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- (NSArray *)children
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{
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NSUInteger childCount = [self numberOfChildren];
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NSMutableArray *children = [[NSMutableArray alloc] initWithCapacity:childCount];
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for (NSInteger i = 0; i < childCount; i++) {
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[children addObject:[self childAtIndex:i]];
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}
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return [children copy];
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}
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#pragma mark Evaluating Functions
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- (float)floatValue
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{
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return (float)[self doubleValue];
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}
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- (int)intValue
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{
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return (int)[self doubleValue];
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}
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- (NSInteger)integerValue
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{
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return (NSInteger)[self doubleValue];
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}
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- (long long)longLongValue
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{
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return (long long)[self doubleValue];
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}
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- (NSString *)description
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{
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return @"[]";
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}
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- (NSUInteger)hash
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{
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return 0;
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}
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@end |