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--!A cross-platform build utility based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015-present, Xmake Open Source Community.
--
-- @author ruki
-- @file xmake.lua
--
-- define rule: yacc
rule("yacc")
add_deps("c++")
set_extensions(".y", ".yy")
on_load(function (target)
-- add yacc includedirs if there are yacc files
-- @see https://github.com/xmake-io/xmake/issues/4820
if target:sourcebatches()["yacc"] then
local sourcefile_dir = path.join(target:autogendir(), "rules", "yacc_yacc")
target:add("includedirs", sourcefile_dir)
end
end)
before_buildcmd_file(function (target, batchcmds, sourcefile_yacc, opt)
-- get yacc
import("lib.detect.find_tool")
local yacc = assert(find_tool("bison") or find_tool("yacc"), "yacc/bison not found!")
-- get c/c++ source file for yacc
local extension = path.extension(sourcefile_yacc)
local sourcefile_cx = path.join(target:autogendir(), "rules", "yacc_yacc", path.basename(sourcefile_yacc) .. ".tab" .. (extension == ".yy" and ".cpp" or ".c"))
-- add objectfile
local objectfile = target:objectfile(sourcefile_cx)
table.insert(target:objectfiles(), objectfile)
-- add includedirs
local sourcefile_dir = path.directory(sourcefile_cx)
-- add commands
batchcmds:show_progress(opt.progress, "${color.build.object}compiling.yacc %s", sourcefile_yacc)
batchcmds:mkdir(sourcefile_dir)
batchcmds:vrunv(yacc.program, {"-d", "-o", path(sourcefile_cx), path(sourcefile_yacc)})
batchcmds:compile(sourcefile_cx, objectfile)
-- add deps
batchcmds:add_depfiles(sourcefile_yacc)
batchcmds:set_depmtime(os.mtime(objectfile))
batchcmds:set_depcache(target:dependfile(objectfile))
end)
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