mirror of
https://github.com/cappuccino/cappuccino.git
synced 2026-08-25 13:07:02 +00:00
374 lines
9.7 KiB
Plaintext
374 lines
9.7 KiB
Plaintext
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@import "CPExpression.j"
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@import <Foundation/CPString.j>
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@import <Foundation/CPArray.j>
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@import <Foundation/CPDictionary.j>
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@implementation CPExpression_function : CPExpression
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{
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CPExpression _operand;
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SEL _selector;
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CPArray _arguments;
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int _argc;
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}
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- (id)initWithSelector:(SEL)aselector arguments:(CPArray)parameters
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{
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[super initWithExpressionType:CPFunctionExpressionType];
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if (![self respondsToSelector:aselector])
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[CPException raise: CPInvalidArgumentException reason:@"Unknown function implementation: " + aselector];
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_selector = aselector;
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_operand = nil;
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_arguments = parameters;
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_argc = [parameters count];
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return self;
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}
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- (id)initWithTarget:(CPExpression)targetExpression selector:(SEL)aselector arguments:(CPArray)parameters
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{
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[super initWithExpressionType:CPFunctionExpressionType];
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var target = [targetExpression expressionValueWithObject:object context:context];
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if (![target respondsToSelector:aselector])
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[CPException raise: CPInvalidArgumentException reason:@"Unknown function implementation: " + aselector];
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_selector = aselector;
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_operand = targetExpression;
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_arguments = parameters;
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_argc = [parameters count];
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return self;
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}
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- (id)initWithCoder:(CPCoder)coder
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{
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var selector = CPSelectorFromString([coder decodeObjectForKey:@"CPExpressionFunctionName"]);
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var arguments = [coder decodeObjectForKey:@"CPExpressionFunctionArguments"];
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return [self initWithSelector:selector arguments:arguments];
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}
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- (void)encodeWithCoder:(CPCoder)coder
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{
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[coder encodeObject:[self _function] forKey:@"CPExpressionFunctionName"];
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[coder encodeObject:_arguments forKey:@"CPExpressionArguments"];
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}
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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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if (object.isa != self.isa || [object expressionType] != [self expressionType] || ![[object _function] isEqualToString:[self _function]] || ![[object operand] isEqual:[self operand]] || ![[object arguments] isEqualToArray:[self arguments]])
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return NO;
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return YES;
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}
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- (CPString)_function // OBJJ preprocessor does not like function as a method
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{
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return CPStringFromSelector(_selector);
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}
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- (CPString)function
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{
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return [self _function];
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}
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- (CPArray)arguments
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{
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return _arguments;
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}
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- (CPExpression)operand
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{
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return _operand;
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}
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- (id)expressionValueWithObject:(id)object context:(CPDictionary)context
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{
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var eval_args = [CPArray array],
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i;
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for (i = 0; i < _argc; i++)
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{
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var arg = [[_arguments objectAtIndex:i] expressionValueWithObject:object context:context];
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if (arg != nil)
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[eval_args addObject:arg];
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}
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var target = (_operand == nil) ? self : [_operand expressionValueWithObject:object context:context];
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return [target performSelector:_selector withObject:eval_args];
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}
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- (CPString)description
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{
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var result = [CPString stringWithFormat:@"%@ %s(", [_operand description], [self _function]],
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i;
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for (i = 0; i < _argc; i++)
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result = result + [_arguments objectAtIndex:i] + (i+1<_argc) ? ", " : "";
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result = result + ")";
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return result ;
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}
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- (CPExpression)_expressionWithSubstitutionVariables:(CPDictionary)variables
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{
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var array = [CPArray array],
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i;
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for (i = 0; i < _argc; i++)
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[array addObject:[[_arguments objectAtIndex:i] _expressionWithSubstitutionVariables:variables]];
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return [CPExpression expressionForFunction:[self operand] selectorName:[self _function] arguments:array];
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}
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- (CPNumber)sum:(CPArray)parameters
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{
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if (_argc < 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var i,
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sum = 0.0;
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for (i = 0; i < _argc; i++)
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sum += [[parameters objectAtIndex:i] doubleValue];
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return [CPNumber numberWithDouble: sum];
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}
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- (CPNumber)count:(CPArray)parameters
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{
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if (_argc < 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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return [CPNumber numberWithUnsignedInt: [[parameters objectAtIndex:0] count]];
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}
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- (CPNumber)min:(CPArray)parameters
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{
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if (_argc < 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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return MIN([parameters objectAtIndex:0],[parameters objectAtIndex:1]);
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}
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- (CPNumber)max:(CPArray)parameters
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{
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if (_argc < 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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return MAX([parameters objectAtIndex:0],[parameters objectAtIndex:1]);
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}
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- (CPNumber)average:(CPArray)parameters
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{
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if (_argc < 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var i,
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sum = 0.0;
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for (i = 0; i < _argc; i++)
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sum += [[parameters objectAtIndex:i] doubleValue];
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return [CPNumber numberWithDouble: sum / _argc];
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}
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- (CPNumber)add:to:(CPArray)parameters
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{
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if (_argc != 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var left = [parameters objectAtIndex:0],
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right = [parameters objectAtIndex:1];
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return [CPNumber numberWithDouble: [left doubleValue] + [right doubleValue]];
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}
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- (CPNumber)from:subtract:(CPArray)parameters
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{
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if (_argc != 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var left = [parameters objectAtIndex:0],
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right = [parameters objectAtIndex:1];
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return [CPNumber numberWithDouble: [left doubleValue] - [right doubleValue]];
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}
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- (CPNumber)multiply:by:(CPArray)parameters
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{
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if (_argc != 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var left = [parameters objectAtIndex:0],
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right = [parameters objectAtIndex:1];
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return [CPNumber numberWithDouble: [left doubleValue] * [right doubleValue]];
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}
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- (CPNumber)divide:by:(CPArray)parameters
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{
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if (_argc != 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var left = [parameters objectAtIndex:0],
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right = [parameters objectAtIndex:1];
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return [CPNumber numberWithDouble: [left doubleValue] / [right doubleValue]];
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}
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- (CPNumber)sqrt:(CPArray)parameters
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{
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if (_argc != 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var num = [[parameters objectAtIndex:0] doubleValue];
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return [CPNumber numberWithDouble: SQRT(num)];
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}
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- (CPNumber)raise:to:(CPArray)parameters
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{
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if (_argc < 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var num = [[parameters objectAtIndex:0] doubleValue],
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power = [[parameters objectAtIndex:1] doubleValue];
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return [CPNumber numberWithDouble: POW(num,power)];
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}
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- (CPNumber)abs:(CPArray)parameters
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{
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if (_argc != 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var num = [[parameters objectAtIndex:0] doubleValue];
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return [CPNumber numberWithDouble:ABS(num)];
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}
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- (CPDate)now
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{
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return [CPDate date];
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}
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- (CPNumber)ln:(CPArray)parameters
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{
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if (_argc != 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var num = [[parameters objectAtIndex:0] doubleValue];
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return [CPNumber numberWithDouble:Math.log(num)];
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}
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- (CPNumber)exp:(CPArray)parameters
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{
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if (_argc != 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var num = [[parameters objectAtIndex:0] doubleValue];
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return [CPNumber numberWithDouble:EXP(num)];
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}
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- (CPNumber)ceiling:(CPArray)parameters
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{
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if (_argc != 1)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var num = [[parameters objectAtIndex:0] doubleValue];
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return [CPNumber numberWithDouble:CEIL(num)];
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}
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- (CPNumber)random
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{
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return [CPNumber numberWithDouble:RAND()];
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}
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- (CPNumber)modulus:by:(CPArray)parameters
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{
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if (_argc != 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var left = [parameters objectAtIndex:0],
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right = [parameters objectAtIndex:1];
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return [CPNumber numberWithInt:([left intValue] % [right intValue])];
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}
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- (id)first:(CPArray)parameters
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{
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if (_argc == 0)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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return [[parameters objectAtIndex:0] objectAtIndex:0];
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}
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- (id)last:(CPArray)parameters
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{
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if (_argc == 0)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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return [[parameters objectAtIndex:0] lastObject];
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}
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- (CPNumber)chs:(CPArray)parameters
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{
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if (_argc == 0)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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return [CPNumber numberWithInt: - [[parameters objectAtIndex:0] intValue]];
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}
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- (id)index:(CPArray)parameters
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{
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if (_argc < 2)
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[CPException raise:CPInvalidArgumentException reason:"Invalid number of parameters"];
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var left = [parameters objectAtIndex:0],
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right = [parameters objectAtIndex:1];
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if ([left isKindOfClass: [CPDictionary class]])
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return [left objectForKey:right];
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else
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return [left objectAtIndex: [right intValue]];
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}
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/*
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- (CPNumber)median:(CPArray)parameters
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{
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}
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- (CPNumber)mode:(CPArray)parameters
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{
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}
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- (CPNumber)stddev:(CPArray)parameters
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{
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}
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- (CPNumber)log:(CPArray)parameters
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{
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}
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- (CPNumber)raise:to:(CPArray)parameters
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{
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}
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- (CPNumber)trunc:(CPArray)parameters
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{
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}
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// These functions are used when parsing
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*/
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@end
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