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https://github.com/Kitware/CMake.git
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132 lines
4.4 KiB
C++
132 lines
4.4 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file LICENSE.rst or https://cmake.org/licensing for details. */
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#include "cmExperimental.h"
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#include <cassert>
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#include <cstddef>
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#include <string>
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#include "cmDiagnostics.h"
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#include "cmGlobalGenerator.h"
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#include "cmMakefile.h"
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#include "cmStringAlgorithms.h"
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#include "cmValue.h"
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namespace {
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/*
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* The `Uuid` fields of these objects should change periodically.
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* Search for other instances to keep the documentation and test suite
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* up-to-date.
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*/
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cmExperimental::FeatureData const LookupTable[] = {
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// ExportPackageDependencies
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{ "ExportPackageDependencies",
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"1942b4fa-b2c5-4546-9385-83f254070067",
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"CMAKE_EXPERIMENTAL_EXPORT_PACKAGE_DEPENDENCIES",
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"CMake's EXPORT_PACKAGE_DEPENDENCIES support is experimental. It is meant "
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"only for experimentation and feedback to CMake developers.",
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{},
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cmExperimental::TryCompileCondition::Always },
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// CxxImportStd
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{ "CxxImportStd",
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"f35a9ac6-8463-4d38-8eec-5d6008153e7d",
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"CMAKE_EXPERIMENTAL_CXX_IMPORT_STD",
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"CMake's support for `import std;` in C++23 and newer is experimental. It "
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"is meant only for experimentation and feedback to CMake developers.",
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{},
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cmExperimental::TryCompileCondition::Always },
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// MappedPackageInfo
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{ "MappedPackageInfo",
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"ababa1b5-7099-495f-a9cd-e22d38f274f2",
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"CMAKE_EXPERIMENTAL_MAPPED_PACKAGE_INFO",
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"CMake's support for generating package information in the Common Package "
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"Specification format from CMake script exports is experimental. It is "
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"meant only for experimentation and feedback to CMake developers.",
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{},
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cmExperimental::TryCompileCondition::Always },
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// ExportBuildDatabase
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{ "ExportBuildDatabase",
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"70ef007e-b743-492d-9407-e35eeac03a40",
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"CMAKE_EXPERIMENTAL_EXPORT_BUILD_DATABASE",
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"CMake's support for exporting build databases is experimental. It is "
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"meant only for experimentation and feedback to CMake developers.",
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{},
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cmExperimental::TryCompileCondition::Never },
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{ "GenerateSbom",
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"2d856d6d-53e8-488b-a17f-d486d2cac317",
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"CMAKE_EXPERIMENTAL_GENERATE_SBOM",
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"CMake's support for generating software bill of materials (Sbom) "
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"information in SPDX format is experimental. It is meant only for "
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"experimentation and feedback to CMake developers.",
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{},
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cmExperimental::TryCompileCondition::Never },
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// Rust support
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{ "Rust",
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"b6fdddce-bf66-41a5-bc5f-077f6fa4d2a1",
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"CMAKE_EXPERIMENTAL_RUST",
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"CMake's support for the Rust programming language is experimental. "
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"It is meant only for experimentation and feedback to CMake developers.",
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{},
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cmExperimental::TryCompileCondition::Never },
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};
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static_assert(sizeof(LookupTable) / sizeof(LookupTable[0]) ==
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static_cast<size_t>(cmExperimental::Feature::Sentinel),
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"Experimental feature lookup table mismatch");
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cmExperimental::FeatureData const& DataForFeature(cmExperimental::Feature f)
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{
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assert(f != cmExperimental::Feature::Sentinel);
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return LookupTable[static_cast<size_t>(f)];
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}
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}
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cmExperimental::FeatureData const& cmExperimental::DataForFeature(Feature f)
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{
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return ::DataForFeature(f);
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}
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cm::optional<cmExperimental::Feature> cmExperimental::FeatureByName(
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std::string const& name)
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{
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size_t idx = 0;
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for (auto const& feature : LookupTable) {
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if (feature.Name == name) {
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return static_cast<Feature>(idx);
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}
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++idx;
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}
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return {};
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}
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bool cmExperimental::HasSupportEnabled(cmMakefile const& mf, Feature f)
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{
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bool enabled = false;
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FeatureData const& data = cmExperimental::DataForFeature(f);
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if (cmValue value = mf.GetDefinition(data.Variable)) {
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enabled = *value == data.Uuid;
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if (mf.GetGlobalGenerator()->ShouldWarnExperimental(data.Name, *value)) {
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if (enabled) {
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mf.IssueDiagnostic(cmDiagnostics::CMD_EXPERIMENTAL, data.Description);
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} else {
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mf.IssueDiagnostic(
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cmDiagnostics::CMD_EXPERIMENTAL,
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cmStrCat(
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data.Variable, " is set to incorrect value\n ", value,
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"\n"
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"See 'Help/dev/experimental.rst' in the source tree of this "
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"version of CMake for documentation of the experimental feature "
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"and the corresponding activation value. This project's code "
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"may require changes to work with this CMake's version of the "
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"feature."));
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}
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}
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}
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return enabled;
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}
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