use divided module

This commit is contained in:
ulic-youthlic 2025-04-28 13:58:27 +08:00
parent 0017c36e2f
commit dfd2c73cd2
Signed by: youthlic
GPG key ID: 63E86C3C14A0D721
4 changed files with 80 additions and 63 deletions

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@ -1,5 +1,6 @@
CompileFlags:
Add:
- -std=c++26
- -Xclang
- -fno-validate-pch
- -fretain-comments-from-system-headers

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@ -1,24 +1,38 @@
.RECIPEPREFIX = >
.DEFAULT_GOAL = build/main.out
CXX = clang++
CXXFLAGS += -std=c++26 -Wno-experimental-header-units
CXXFLAGS += -std=c++26 -Wno-experimental-header-units -Wno-unused-command-line-argument
LDFLAGS += -std=c++26
SYSTEMHEADER_FLAGS = -Wno-deprecated-builtins -Wno-pragma-system-header-outside-header -Wno-keyword-compat
build_module_path = $(let first rest,$1,$(if $(rest),-fmodule-file=$(first) $(call build_module_path,$(rest)),-fmodule-file=$(first)))
module_pair = $(if $(findstring user,$1),$(patsubst build/user/%.pcm,%=,$1))$1
build_module_path = $(if $1,$(let first rest,$1,$(if $(rest),-fmodule-file=$(call module_pair,$(first)) $(call build_module_path,$(rest)),-fmodule-file=$(call module_pair,$(first)))))
object_build = $(filter-out %.pcm,$^) $(call build_module_path,$(filter %.pcm,$^))
autodir = @mkdir -p $(@D)
build/main.out: build/main.o
build/main.out: build/main.o build/builder.o
> $(call autodir)
> $(CXX) $(LDFLAGS) $^ -o $@
build/main.o: main.cxx build/print.pcm build/type_traits.pcm
> $(CXX) $(CXXFLAGS) -c $(filter-out %.pcm,$^) $(call build_module_path,$(filter %.pcm,$^))
build/main.o:: main.cxx build/system/print.pcm build/user/builder.pcm
build/builder.o:: builder.cxxm build/system/type_traits.pcm
build/user/builder.pcm:: build/system/type_traits.pcm
build/%.o::
> $(call autodir)
> $(CXX) $(CXXFLAGS) -c $(call object_build)
> @mv $(patsubst build/%,%,$@) $@
build/%.pcm:
> $(CXX) $(CXXFLAGS) -xc++-system-header --precompile $(patsubst build/%.pcm,%,$@) -o $@ $(SYSTEMHEADER_FLAGS)
build/user/%.pcm:: %.cxxm
> $(call autodir)
> $(CXX) $(CXXFLAGS) --precompile -o $@ $(call object_build)
build/system/%.pcm:
> $(call autodir)
> $(CXX) $(CXXFLAGS) -xc++-system-header --precompile $(patsubst build/system/%.pcm,%,$@) -o $@ $(SYSTEMHEADER_FLAGS)
.PHONY: clean run
clean:
> @-rm -rf ./build/*
> @-rm -rf ./build
bear: clean
> bear -- $(MAKE)

56
builder.cxxm Normal file
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@ -0,0 +1,56 @@
export module builder;
import <type_traits>;
export template <bool param1 = false, bool param2 = false>
struct Builder;
template <bool enabled>
struct BuildMixin {};
template <>
struct BuildMixin<true> {
auto build(this auto&& self)
requires requires { self.p1 + self.p2; }
{
return self.p1 + self.p2;
}
};
template <bool enabled>
struct Param1Mixin {};
template <>
struct Param1Mixin<false> {
auto fill_param1(this auto&& self)
requires requires { self.p1; }
{
self.p1 = 1;
return Builder<true, std::remove_reference_t<decltype(self)>::param2_v>(
self);
}
};
template <bool enabled>
struct Param2Mixin {};
template <>
struct Param2Mixin<false> {
auto fill_param2(this auto&& self)
requires requires { self.p2; }
{
self.p2 = 1;
return Builder<std::remove_reference_t<decltype(self)>::param1_v, true>(
self);
}
};
template <bool param1, bool param2>
struct Builder : BuildMixin<param1 && param2>,
Param1Mixin<param1>,
Param2Mixin<param2> {
const constinit static auto param1_v = param1;
const constinit static auto param2_v = param2;
int p1;
int p2;
Builder() : p1(0), p2(0) {}
Builder(auto&& other) : p1(other.p1), p2(other.p2) {}
};

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@ -1,59 +1,5 @@
import <print>;
import <type_traits>;
template <bool param1 = false, bool param2 = false>
struct Builder;
template <bool enabled>
struct BuildMixin {};
template <>
struct BuildMixin<true> {
auto build(this auto&& self)
requires requires { self.p1 + self.p2; }
{
return self.p1 + self.p2;
}
};
template <bool enabled>
struct Param1Mixin {};
template <>
struct Param1Mixin<false> {
auto fill_param1(this auto&& self)
requires requires { self.p1; }
{
self.p1 = 1;
return Builder<true, std::remove_reference_t<decltype(self)>::param2_v>(
self);
}
};
template <bool enabled>
struct Param2Mixin {};
template <>
struct Param2Mixin<false> {
auto fill_param2(this auto&& self)
requires requires { self.p2; }
{
self.p2 = 1;
return Builder<std::remove_reference_t<decltype(self)>::param1_v, true>(
self);
}
};
template <bool param1, bool param2>
struct Builder : BuildMixin<param1 && param2>,
Param1Mixin<param1>,
Param2Mixin<param2> {
const constinit static auto param1_v = param1;
const constinit static auto param2_v = param2;
int p1;
int p2;
Builder() : p1(0), p2(0) {}
Builder(auto&& other) : p1(other.p1), p2(other.p2) {}
};
import builder;
auto main() -> int {
Builder builder;