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cmGeneratorTarget: factor out reuse target computation

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This commit is contained in:
Ben Boeckel
2025-06-15 00:22:26 +02:00
parent 99bdf2ae16
commit 6e7da8aa95
2 changed files with 35 additions and 20 deletions
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53
Source/cmGeneratorTarget.cxx
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@@ -2799,6 +2799,26 @@ std::string cmGeneratorTarget::GetClangTidyExportFixesDirectory(
return cmSystemTools::CollapseFullPath(path);
}
cmGeneratorTarget const* cmGeneratorTarget::GetPchReuseTarget() const
{
cmValue pchReuseFrom = this->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM");
if (!pchReuseFrom) {
return nullptr;
}
// Guaranteed to exist because `SetProperty` does a target lookup.
return this->GetGlobalGenerator()->FindGeneratorTarget(*pchReuseFrom);
}
cmGeneratorTarget* cmGeneratorTarget::GetPchReuseTarget()
{
cmValue pchReuseFrom = this->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM");
if (!pchReuseFrom) {
return nullptr;
}
// Guaranteed to exist because `SetProperty` does a target lookup.
return this->GetGlobalGenerator()->FindGeneratorTarget(*pchReuseFrom);
}
std::vector<std::string> cmGeneratorTarget::GetPchArchs(
std::string const& config, std::string const& lang) const
{
@@ -2826,24 +2846,21 @@ std::string cmGeneratorTarget::GetPchHeader(std::string const& config,
return std::string();
}
cmGeneratorTarget const* generatorTarget = this;
cmValue pchReuseFrom =
generatorTarget->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM");
cmGeneratorTarget const* reuseTarget = this->GetPchReuseTarget();
if (reuseTarget) {
generatorTarget = reuseTarget;
}
auto const inserted =
this->PchHeaders.insert(std::make_pair(language + config + arch, ""));
if (inserted.second) {
std::vector<BT<std::string>> const headers =
this->GetPrecompileHeaders(config, language);
if (headers.empty() && !pchReuseFrom) {
if (headers.empty() && !reuseTarget) {
return std::string();
}
std::string& filename = inserted.first->second;
if (pchReuseFrom) {
generatorTarget =
this->GetGlobalGenerator()->FindGeneratorTarget(*pchReuseFrom);
}
std::map<std::string, std::string> const languageToExtension = {
{ "C", ".h" },
{ "CXX", ".hxx" },
@@ -2862,7 +2879,7 @@ std::string cmGeneratorTarget::GetPchHeader(std::string const& config,
languageToExtension.at(language));
std::string const filename_tmp = cmStrCat(filename, ".tmp");
if (!pchReuseFrom) {
if (!reuseTarget) {
cmValue pchPrologue =
this->Makefile->GetDefinition("CMAKE_PCH_PROLOGUE");
cmValue pchEpilogue =
@@ -2937,11 +2954,9 @@ std::string cmGeneratorTarget::GetPchSource(std::string const& config,
std::string& filename = inserted.first->second;
cmGeneratorTarget const* generatorTarget = this;
cmValue pchReuseFrom =
generatorTarget->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM");
if (pchReuseFrom) {
generatorTarget =
this->GetGlobalGenerator()->FindGeneratorTarget(*pchReuseFrom);
cmGeneratorTarget const* reuseTarget = this->GetPchReuseTarget();
if (reuseTarget) {
generatorTarget = reuseTarget;
}
filename =
@@ -2968,7 +2983,7 @@ std::string cmGeneratorTarget::GetPchSource(std::string const& config,
}
std::string const filename_tmp = cmStrCat(filename, ".tmp");
if (!pchReuseFrom) {
if (!reuseTarget) {
{
cmGeneratedFileStream file(filename_tmp);
file << "/* generated by CMake */\n";
@@ -3034,11 +3049,9 @@ std::string cmGeneratorTarget::GetPchFile(std::string const& config,
};
cmGeneratorTarget* generatorTarget = this;
cmValue pchReuseFrom =
generatorTarget->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM");
if (pchReuseFrom) {
generatorTarget =
this->GetGlobalGenerator()->FindGeneratorTarget(*pchReuseFrom);
cmGeneratorTarget* reuseTarget = this->GetPchReuseTarget();
if (reuseTarget) {
generatorTarget = reuseTarget;
}
std::string const pchFileObject =

2
Source/cmGeneratorTarget.h
View File

@@ -692,6 +692,8 @@ public:
std::vector<BT<std::string>> GetPrecompileHeaders(
std::string const& config, std::string const& language) const;
cmGeneratorTarget const* GetPchReuseTarget() const;
cmGeneratorTarget* GetPchReuseTarget();
std::vector<std::string> GetPchArchs(std::string const& config,
std::string const& lang) const;
std::string GetPchHeader(std::string const& config,