improve includes

1 files changed, 134 insertions, 0 deletions

diff --git a/xmake/includes/check/check_csnippets.lua b/xmake/includes/check/check_csnippets.lua
new file mode 100644
index 000000000..2e22c3220
--- /dev/null
+++ b/xmake/includes/check/check_csnippets.lua
@@ -0,0 +1,134 @@
+--!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, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        check_csnippets.lua
+--
+
+-- check c snippets and add macro definition
+--
+-- e.g.
+--
+-- check_csnippets("HAS_STATIC_ASSERT", "_Static_assert(1, \"\");", {includes = "stdio.h"})
+-- check_csnippets("HAS_LONG_8", "return (sizeof(long) == 8)? 0 : -1;", {tryrun = true})
+-- check_csnippets("PTR_SIZE", 'printf("%d", sizeof(void*)); return 0;', {output = true, number = true})
+--
+function check_csnippets(definition, snippets, opt)
+    opt = opt or {}
+    local optname = opt.name or ("__" .. definition)
+    interp_save_scope()
+    option(optname)
+        set_showmenu(false)
+        add_csnippets(definition, snippets, {tryrun = opt.tryrun, output = opt.output})
+        if not opt.output then
+            add_defines(definition)
+        end
+        if opt.links then
+            add_links(opt.links)
+        end
+        if opt.includes then
+            add_cincludes(opt.includes)
+        end
+        if opt.languages then
+            set_languages(opt.languages)
+        end
+        if opt.cflags then
+            add_cflags(opt.cflags)
+        end
+        if opt.cxflags then
+            add_cxflags(opt.cxflags)
+        end
+        if opt.defines then
+            add_defines(opt.defines)
+        end
+        if opt.warnings then
+            set_warnings(opt.warnings)
+        end
+        if opt.output then
+            after_check(function (option)
+                if option:value() then
+                    if opt.number then
+                        option:add("defines", definition .. "=" .. tonumber(option:value()))
+                    elseif opt.quote == false then
+                        option:add("defines", definition .. "=" .. option:value())
+                    else
+                        option:add("defines", definition .. "=\"" .. option:value() .. "\"")
+                    end
+                end
+            end)
+        end
+    option_end()
+    interp_restore_scope()
+    add_options(optname)
+end
+
+-- check c snippets and add macro definition to the configuration snippets
+--
+-- e.g.
+--
+-- configvar_check_csnippets("HAS_STATIC_ASSERT", "_Static_assert(1, \"\");", {includes = "stdio.h"})
+-- configvar_check_csnippets("HAS_LONG_8", "return (sizeof(long) == 8)? 0 : -1;", {tryrun = true})
+-- configvar_check_csnippets("HAS_LONG_8", "return (sizeof(long) == 8)? 0 : -1;", {tryrun = true, default = 0})
+-- configvar_check_csnippets("LONG_SIZE=8", "return (sizeof(long) == 8)? 0 : -1;", {tryrun = true, quote = false})
+-- configvar_check_csnippets("PTR_SIZE", 'printf("%d", sizeof(void*)); return 0;', {output = true, number = true})
+--
+function configvar_check_csnippets(definition, snippets, opt)
+    opt = opt or {}
+    local optname = opt.name or ("__" .. definition)
+    local defname, defval = table.unpack(definition:split('='))
+    interp_save_scope()
+    option(optname)
+        set_showmenu(false)
+        add_csnippets(definition, snippets, {tryrun = opt.tryrun, output = opt.output})
+        if opt.default == nil then
+            set_configvar(defname, defval or 1, {quote = opt.quote})
+        end
+        if opt.links then
+            add_links(opt.links)
+        end
+        if opt.includes then
+            add_cincludes(opt.includes)
+        end
+        if opt.languages then
+            set_languages(opt.languages)
+        end
+        if opt.cflags then
+            add_cflags(opt.cflags)
+        end
+        if opt.cxflags then
+            add_cxflags(opt.cxflags)
+        end
+        if opt.defines then
+            add_defines(opt.defines)
+        end
+        if opt.warnings then
+            set_warnings(opt.warnings)
+        end
+        if opt.output then
+            after_check(function (option)
+                if option:value() then
+                    option:set("configvar", defname, opt.number and tonumber(option:value()) or option:value(), {quote = opt.quote})
+                end
+            end)
+        end
+    option_end()
+    interp_restore_scope()
+    if opt.default == nil then
+        add_options(optname)
+    else
+        set_configvar(defname, has_config(optname) and (defval or 1) or opt.default, {quote = opt.quote})
+    end
+end