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# frozen_string_literal: true
require_relative '../../puppet/pops'
module Puppet
module Parser
# Adapts an egrammar/eparser to respond to the public API of the classic parser
# and makes use of the new evaluator.
#
class E4ParserAdapter
def initialize
@file = ''
@string = ''
@use = :unspecified
end
def file=(file)
@file = file
@use = :file
end
def parse(string = nil)
self.string = string if string
parser = Pops::Parser::EvaluatingParser.singleton
model =
if @use == :string
# Parse with a source_file to set in created AST objects (it was either given, or it may be unknown
# if caller did not set a file and the present a string.
#
parser.parse_string(@string, @file || "unknown-source-location")
else
parser.parse_file(@file)
end
# the parse_result may be
# * empty / nil (no input)
# * a Model::Program
# * a Model::Expression
#
args = {}
Pops::Model::AstTransformer.new(@file).merge_location(args, model)
ast_code =
if model.is_a? Pops::Model::Program
AST::PopsBridge::Program.new(model, args)
else
args[:value] = model
AST::PopsBridge::Expression.new(args)
end
# Create the "main" class for the content - this content will get merged with all other "main" content
AST::Hostclass.new('', :code => ast_code)
end
def string=(string)
@string = string
@use = :string
end
end
end
end
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