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bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6 enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <ostream>
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#include <string>
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#include <vector>
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class cmScriptGeneratorIndent
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{
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public:
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cmScriptGeneratorIndent() = default;
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cmScriptGeneratorIndent(int level)
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: Level(level)
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{
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}
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void Write(std::ostream& os) const
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{
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for (int i = 0; i < this->Level; ++i) {
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os << " ";
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}
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}
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cmScriptGeneratorIndent Next(int step = 2) const
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{
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return { this->Level + step };
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}
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private:
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int Level = 0;
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};
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inline std::ostream& operator<<(std::ostream& os,
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cmScriptGeneratorIndent indent)
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{
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indent.Write(os);
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return os;
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}
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/** \class cmScriptGenerator
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* \brief Support class for generating install and test scripts.
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*
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*/
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class cmScriptGenerator
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{
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public:
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cmScriptGenerator(std::string config_var,
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std::vector<std::string> configurations);
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virtual ~cmScriptGenerator();
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cmScriptGenerator(cmScriptGenerator const&) = delete;
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cmScriptGenerator& operator=(cmScriptGenerator const&) = delete;
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void Generate(std::ostream& os, const std::string& config,
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std::vector<std::string> const& configurationTypes);
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protected:
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using Indent = cmScriptGeneratorIndent;
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virtual void GenerateScript(std::ostream& os);
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virtual void GenerateScriptConfigs(std::ostream& os, Indent indent);
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virtual void GenerateScriptActions(std::ostream& os, Indent indent);
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virtual void GenerateScriptForConfig(std::ostream& os,
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const std::string& config,
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Indent indent);
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virtual void GenerateScriptNoConfig(std::ostream&, Indent) {}
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virtual bool NeedsScriptNoConfig() const { return false; }
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// Test if this generator does something for a given configuration.
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bool GeneratesForConfig(const std::string&);
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std::string CreateConfigTest(const std::string& config);
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std::string CreateConfigTest(std::vector<std::string> const& configs);
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std::string CreateComponentTest(const std::string& component);
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// Information shared by most generator types.
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std::string RuntimeConfigVariable;
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std::vector<std::string> const Configurations;
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// Information used during generation.
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std::string ConfigurationName;
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std::vector<std::string> const* ConfigurationTypes;
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// True if the subclass needs to generate an explicit rule for each
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// configuration. False if the subclass only generates one rule for
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// all enabled configurations.
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bool ActionsPerConfig;
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private:
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void GenerateScriptActionsOnce(std::ostream& os, Indent indent);
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void GenerateScriptActionsPerConfig(std::ostream& os, Indent indent);
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};
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