//
//  MPFractionFunction.m
//  MathPad
//
//  Created by Kim Wittenburg on 07.10.14.
//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
//

#import "MPFractionFunction.h"

@implementation MPFractionFunction

MPFunctionAccessorImplementation(NominatorExpression, _nominatorExpression)
MPFunctionAccessorImplementation(DenominatorExpression, _denominatorExpression)

- (NSArray *)childrenAccessors
{
    return @[@"nominatorExpression", @"denominatorExpression"];
}

- (BOOL)validate:(MPParseError *__autoreleasing *)error
{
    return [[self.nominatorExpression parse] validate:error] && [[self.denominatorExpression parse] validate:error];
}

- (NSDecimalNumber *)evaluate
{
    return [[[self.nominatorExpression parse] evaluate] decimalNumberByDividingBy:[[self.denominatorExpression parse] evaluate]];
}

- (NSString *)description
{
    return [NSString stringWithFormat:@"%@ / %@", self.nominatorExpression, self.denominatorExpression];
}

@end