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# frozen_string_literal: true
module GraphQL
module Language
# Exposes {.generate}, which turns AST nodes back into query strings.
module Generation
extend self
# Turn an AST node back into a string.
#
# @example Turning a document into a query
# document = GraphQL.parse(query_string)
# GraphQL::Language::Generation.generate(document)
# # => "{ ... }"
#
# @param node [GraphQL::Language::Nodes::AbstractNode] an AST node to recursively stringify
# @param indent [String] Whitespace to add to each printed node
# @param printer [GraphQL::Language::Printer] An optional custom printer for printing AST nodes. Defaults to GraphQL::Language::Printer
# @return [String] Valid GraphQL for `node`
def generate(node, indent: "", printer: GraphQL::Language::Printer.new)
printer.print(node, indent: indent)
end
end
end
end
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