From 6c8cd11dad10587e5dde9ab7706384927b961bb6 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 16 Apr 2015 22:07:29 +0200 Subject: Completely refactor code generation --- src/output_header.cpp | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 src/output_header.cpp (limited to 'src/output_header.cpp') diff --git a/src/output_header.cpp b/src/output_header.cpp new file mode 100644 index 0000000..a99369c --- /dev/null +++ b/src/output_header.cpp @@ -0,0 +1,85 @@ +/* + Copyright (c) 2015, Matthias Schiffer + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#include "output_header.hpp" + + +namespace solar { + +void output_header_t::emit_tokens() { + if (get_tokens().empty()) + return; + + block_t token(this, "typedef enum ", prefixed("token")); + + for (const auto &token : get_tokens()) + write_line(token.first.c_str(), " = ", token.second + 256, ","); + + token.close_(" ", prefixed("token_t")); +} + +void output_header_t::emit_token_value() { + block_t token_value(this, "typedef struct ", prefixed("token_value")); + + std::map token_values; + + for (const symbol_t &term : get_generator()->get_terminals()) { + const auto &type = get_generator()->get_grammar().get_term_type(term); + if (!type.first.empty()) + token_values.insert(std::make_pair(type.second, type.first)); + } + + for (const auto &value : token_values) + write_line_(variable_t({value.second.c_str(), value.first.c_str()})); + + token_value.close_(" ", prefixed("token_value_t")); +} + +void output_header_t::write() { + write_line("#pragma once"); + write_line(); + + if (!get_generator()->get_grammar().header_block.empty()) { + write_line(get_generator()->get_grammar().header_block); + write_line(); + } + + emit_tokens(); + write_line(); + + emit_token_value(); + write_line(); + + write_line_("typedef struct ", prefixed("context"), " ", prefixed("context_t")); + write_line(); + + write_line_(sig_alloc()); + write_line_(sig_free()); + write_line(); + write_line_(sig_push()); +} + +}; -- cgit v1.2.3