Class: GraphQL::Language::Transform

Inherits:
Parslet::Transform
  • Object
show all
Defined in:
lib/graphql/language/transform.rb

Overview

Transform is a [parslet](kschiess.github.io/parslet/) transform for for turning the AST into objects in Nodes objects.

Constant Summary collapse

CREATE_NODE =

Returns a node of type ‘name` with attributes `attributes`.

Returns:

  • (GraphQL::Language::Node) —

    a node of type ‘name` with attributes `attributes`

Proc.new do |name, attributes|
  node_class = GraphQL::Language::Nodes.const_get(name)
  node_class.new(attributes)
end
ESCAPES = 
/\\["\\\/bfnrt]/
ESCAPES_REPLACE = 
{ '\\"' => '"', "\\\\" => "\\", "\\/" => '/', "\\b" => "\b", "\\f" => "\f", "\\n" => "\n", "\\r" => "\r", "\\t" => "\t" }
UTF_8 = 
/\\u[\da-f]{4}/i
UTF_8_REPLACE = 
-> (m) { [m[-4..-1].to_i(16)].pack('U') }

Class Method Summary collapse

Class Method Details

.optional_sequence(name) ⇒ Object 



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# File 'lib/graphql/language/transform.rb', line 14

def self.optional_sequence(name)
  rule(name => simple(:val)) { [] }
  rule(name => sequence(:val)) { val }
end