Class: Dentaku::AST::StringFunctions::Base

Inherits:

Function

• Object
• Node
• Function
• Dentaku::AST::StringFunctions::Base

Defined in:

lib/dentaku/ast/functions/string_functions.rb

Direct Known Subclasses

Concat, Contains, Find, Left, Len, Mid, Right, Substitute

Constant Summary

Constants inherited from Function

Function::DIG

Instance Method Summary

• #negative_argument_failure(fun, arg = 'length') ⇒ Object
• #type ⇒ Object

Methods inherited from Function

#deferred_args, #dependencies, get, #initialize, numeric, register, register_class, registry

Methods inherited from Node

arity, #dependencies, peek, precedence

Constructor Details

This class inherits a constructor from Dentaku::AST::Function

Instance Method Details

#negative_argument_failure(fun, arg = 'length') ⇒ Object

Raises:

• (Dentaku::ArgumentError.for( :invalid_value, function_name: "#{fun}()" ))

# File 'lib/dentaku/ast/functions/string_functions.rb', line 11

def negative_argument_failure(fun, arg = 'length')
  raise Dentaku::ArgumentError.for(
    :invalid_value,
    function_name: "#{fun}()"
  ), "#{fun}() requires #{arg} to be positive"
end

#type ⇒ Object

# File 'lib/dentaku/ast/functions/string_functions.rb', line 7

def type
  :string
end