mirror of
https://github.com/reactos/CMake.git
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187 lines
5.7 KiB
C++
187 lines
5.7 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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#include "cmScriptGenerator.h"
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#include "cmSystemTools.h"
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cmScriptGenerator::cmScriptGenerator(
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const std::string& config_var,
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std::vector<std::string> const& configurations)
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: RuntimeConfigVariable(config_var)
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, Configurations(configurations)
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, ConfigurationName("")
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, ConfigurationTypes(CM_NULLPTR)
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, ActionsPerConfig(false)
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{
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}
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cmScriptGenerator::~cmScriptGenerator()
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{
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}
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void cmScriptGenerator::Generate(
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std::ostream& os, const std::string& config,
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std::vector<std::string> const& configurationTypes)
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{
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this->ConfigurationName = config;
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this->ConfigurationTypes = &configurationTypes;
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this->GenerateScript(os);
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this->ConfigurationName = "";
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this->ConfigurationTypes = CM_NULLPTR;
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}
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static void cmScriptGeneratorEncodeConfig(const std::string& config,
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std::string& result)
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{
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for (const char* c = config.c_str(); *c; ++c) {
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if (*c >= 'a' && *c <= 'z') {
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result += "[";
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result += static_cast<char>(*c + 'A' - 'a');
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result += *c;
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result += "]";
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} else if (*c >= 'A' && *c <= 'Z') {
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result += "[";
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result += *c;
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result += static_cast<char>(*c + 'a' - 'A');
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result += "]";
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} else {
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result += *c;
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}
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}
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}
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std::string cmScriptGenerator::CreateConfigTest(const std::string& config)
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{
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std::string result = "\"${";
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result += this->RuntimeConfigVariable;
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result += "}\" MATCHES \"^(";
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if (!config.empty()) {
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cmScriptGeneratorEncodeConfig(config, result);
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}
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result += ")$\"";
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return result;
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}
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std::string cmScriptGenerator::CreateConfigTest(
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std::vector<std::string> const& configs)
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{
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std::string result = "\"${";
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result += this->RuntimeConfigVariable;
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result += "}\" MATCHES \"^(";
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const char* sep = "";
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for (std::vector<std::string>::const_iterator ci = configs.begin();
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ci != configs.end(); ++ci) {
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result += sep;
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sep = "|";
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cmScriptGeneratorEncodeConfig(*ci, result);
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}
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result += ")$\"";
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return result;
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}
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void cmScriptGenerator::GenerateScript(std::ostream& os)
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{
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// Track indentation.
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Indent indent;
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// Generate the script possibly with per-configuration code.
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this->GenerateScriptConfigs(os, indent);
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}
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void cmScriptGenerator::GenerateScriptConfigs(std::ostream& os, Indent indent)
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{
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if (this->ActionsPerConfig) {
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this->GenerateScriptActionsPerConfig(os, indent);
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} else {
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this->GenerateScriptActionsOnce(os, indent);
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}
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}
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void cmScriptGenerator::GenerateScriptActions(std::ostream& os, Indent indent)
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{
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if (this->ActionsPerConfig) {
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// This is reached for single-configuration build generators in a
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// per-config script generator.
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this->GenerateScriptForConfig(os, this->ConfigurationName, indent);
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}
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}
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void cmScriptGenerator::GenerateScriptForConfig(std::ostream& /*unused*/,
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const std::string& /*unused*/,
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Indent /*unused*/)
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{
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// No actions for this generator.
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}
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bool cmScriptGenerator::GeneratesForConfig(const std::string& config)
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{
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// If this is not a configuration-specific rule then we install.
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if (this->Configurations.empty()) {
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return true;
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}
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// This is a configuration-specific rule. Check if the config
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// matches this rule.
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std::string config_upper = cmSystemTools::UpperCase(config);
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for (std::vector<std::string>::const_iterator i =
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this->Configurations.begin();
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i != this->Configurations.end(); ++i) {
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if (cmSystemTools::UpperCase(*i) == config_upper) {
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return true;
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}
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}
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return false;
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}
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void cmScriptGenerator::GenerateScriptActionsOnce(std::ostream& os,
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Indent indent)
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{
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if (this->Configurations.empty()) {
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// This rule is for all configurations.
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this->GenerateScriptActions(os, indent);
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} else {
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// Generate a per-configuration block.
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std::string config_test = this->CreateConfigTest(this->Configurations);
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os << indent << "if(" << config_test << ")\n";
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this->GenerateScriptActions(os, indent.Next());
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os << indent << "endif(" << config_test << ")\n";
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}
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}
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void cmScriptGenerator::GenerateScriptActionsPerConfig(std::ostream& os,
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Indent indent)
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{
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if (this->ConfigurationTypes->empty()) {
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// In a single-configuration generator there is only one action
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// and it applies if the runtime-requested configuration is among
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// the rule's allowed configurations. The configuration built in
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// the tree does not matter for this decision but will be used to
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// generate proper target file names into the code.
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this->GenerateScriptActionsOnce(os, indent);
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} else {
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// In a multi-configuration generator we produce a separate rule
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// in a block for each configuration that is built. We restrict
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// the list of configurations to those to which this rule applies.
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bool first = true;
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for (std::vector<std::string>::const_iterator i =
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this->ConfigurationTypes->begin();
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i != this->ConfigurationTypes->end(); ++i) {
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const char* config = i->c_str();
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if (this->GeneratesForConfig(config)) {
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// Generate a per-configuration block.
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std::string config_test = this->CreateConfigTest(config);
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os << indent << (first ? "if(" : "elseif(") << config_test << ")\n";
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this->GenerateScriptForConfig(os, config, indent.Next());
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first = false;
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}
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}
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if (!first) {
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if (this->NeedsScriptNoConfig()) {
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os << indent << "else()\n";
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this->GenerateScriptNoConfig(os, indent.Next());
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}
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os << indent << "endif()\n";
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}
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}
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}
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