40 lines
711 B
Objective-C
40 lines
711 B
Objective-C
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//
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// MPParenthesisFunction.m
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// MathPad
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//
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// Created by Kim Wittenburg on 17.09.14.
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// Copyright (c) 2014 Kim Wittenburg. All rights reserved.
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//
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#import "MPParenthesisFunction.h"
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#import "MPExpression.h"
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#import "MPExpressionTree.h"
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@implementation MPParenthesisFunction
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MPFunctionAccessorImplementation(Expression, _expression)
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- (NSArray *)childrenAccessors
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{
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return @[@"expression"];
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}
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- (BOOL)validate:(NSError *__autoreleasing *)error
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{
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return [[self.expression parse] validate:error];
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}
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- (NSDecimalNumber *)evaluate
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{
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return [[self.expression parse] evaluate];
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}
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- (NSString *)description
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{
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return [NSString stringWithFormat:@"(%@)", self.expression.description];
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}
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@end
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