Class: JMESPath::Nodes::StartsWithFunction Private

Inherits:
Function show all
Includes:
TypeChecker
Defined in:
lib/jmespath/nodes/function.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Constant Summary

Constants included from TypeChecker

TypeChecker::ARRAY_TYPE, TypeChecker::BOOLEAN_TYPE, TypeChecker::EXPRESSION_TYPE, TypeChecker::NULL_TYPE, TypeChecker::NUMBER_TYPE, TypeChecker::OBJECT_TYPE, TypeChecker::STRING_TYPE, TypeChecker::TYPE_NAMES

Constants inherited from Function

Function::FUNCTIONS

Instance Method Summary collapse

Methods included from TypeChecker

#get_type

Methods inherited from Function

create, #initialize, #optimize, #visit

Methods inherited from Node

#chains_with?, #optimize, #visit

Constructor Details

This class inherits a constructor from JMESPath::Nodes::Function

Instance Method Details

#call(args) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/jmespath/nodes/function.rb', line 589

def call(args)
  if args.count == 2
    search, prefix = args
    search_type = get_type(search)
    prefix_type = get_type(prefix)
    if search_type != STRING_TYPE
      msg = 'function starts_with() expects first argument to be a string'
      return maybe_raise Errors::InvalidTypeError, msg
    end
    if prefix_type != STRING_TYPE
      msg = 'function starts_with() expects second argument to be a string'
      return maybe_raise Errors::InvalidTypeError, msg
    end
    search.start_with?(prefix)
  else
    msg = 'function starts_with() expects two arguments'
    return maybe_raise Errors::InvalidArityError, msg
  end
end