build2/test/script/parser


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// file      : build2/test/script/parser -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license   : MIT; see accompanying LICENSE file

#ifndef BUILD2_TEST_SCRIPT_PARSER
#define BUILD2_TEST_SCRIPT_PARSER

#include <build2/types>
#include <build2/utility>

#include <build2/parser>
#include <build2/diagnostics>

#include <build2/test/script/token>
#include <build2/test/script/script>

namespace build2
{
  namespace test
  {
    namespace script
    {
      class lexer;

      class parser: protected build2::parser
      {
      public:
        using script_type = test::script::script;

        // Issue diagnostics and throw failed in case of an error.
        //
        script_type
        parse (istream&, const path& name, target& test, target& script);

        // Recursive descent parser.
        //
        // Each parse function receives the token/type from which it should
        // start consuming. On return the token/type should contain the first
        // token that has not been consumed.
        //
      protected:
        void
        script (token&, token_type&);

        void
        script_line (token&, token_type&);

        void
        variable_line (token&, token_type&, string);

        void
        test_line (token&, token_type&, names_type, location);

        void
        command_exit (token&, token_type&);

      protected:
        using base_parser = build2::parser;

        lexer* lexer_;
        script_type* script_;
      };
    }
  }
}

#endif // BUILD2_TEST_SCRIPT_PARSER