Class: Dentaku::AST::Subtraction
- Inherits:
-
Arithmetic
- Object
- Node
- Operation
- Arithmetic
- Dentaku::AST::Subtraction
- Defined in:
- lib/dentaku/ast/arithmetic.rb
Instance Attribute Summary
Attributes inherited from Operation
Class Method Summary collapse
Instance Method Summary collapse
Methods inherited from Arithmetic
Methods inherited from Operation
#accept, #dependencies, #display_operator, #initialize, max_param_count, min_param_count, right_associative?
Methods inherited from Node
arity, #dependencies, #name, peek, #type
Constructor Details
This class inherits a constructor from Dentaku::AST::Arithmetic
Class Method Details
.precedence ⇒ Object
118 119 120 |
# File 'lib/dentaku/ast/arithmetic.rb', line 118 def self.precedence 10 end |
Instance Method Details
#operator ⇒ Object
114 115 116 |
# File 'lib/dentaku/ast/arithmetic.rb', line 114 def operator :- end |
#value(context = {}) ⇒ Object
122 123 124 125 126 127 128 |
# File 'lib/dentaku/ast/arithmetic.rb', line 122 def value(context = {}) if left.type == :datetime Dentaku::DateArithmetic.new(left.value(context)).sub(right.value(context)) else super end end |