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75 lines
2.1 KiB
75 lines
2.1 KiB
/* 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 "cmImportedCxxModuleInfo.h"
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#include <cstddef>
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#include <string>
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#include <utility>
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#include <vector>
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#include "cmCryptoHash.h"
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#include "cmList.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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bool ImportedCxxModuleLookup::Initialized() const
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{
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return this->DoneInit;
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}
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void ImportedCxxModuleLookup::Initialize(std::string const& importedModules)
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{
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for (auto const& entry : cmList{ importedModules }) {
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auto nameSep = entry.find('=');
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if (nameSep == std::string::npos) {
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// Invalid entry; ignore.
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continue;
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}
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auto name = entry.substr(0, nameSep);
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auto sourceSep = entry.find(',', nameSep);
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std::string source;
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if (sourceSep == std::string::npos) {
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source = entry.substr(nameSep + 1);
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} else {
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source = entry.substr(nameSep + 1, sourceSep - nameSep - 1);
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}
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std::vector<std::string> bmis;
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if (sourceSep != std::string::npos) {
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auto bmiPaths = entry.substr(sourceSep + 1);
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bmis = cmSystemTools::SplitString(bmiPaths, ',');
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}
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this->ImportedInfo.emplace(source,
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ImportedCxxModuleInfo{ name, std::move(bmis) });
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}
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this->DoneInit = true;
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}
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std::string ImportedCxxModuleLookup::BmiNameForSource(std::string const& path)
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{
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auto genit = this->GeneratorInfo.find(path);
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if (genit != this->GeneratorInfo.end()) {
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return genit->second.BmiName;
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}
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auto importit = this->ImportedInfo.find(path);
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std::string bmiName;
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cmCryptoHash hasher(cmCryptoHash::AlgoSHA3_512);
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constexpr size_t HASH_TRUNCATION = 12;
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if (importit != this->ImportedInfo.end()) {
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auto safename = hasher.HashString(importit->second.Name);
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bmiName = cmStrCat(safename.substr(0, HASH_TRUNCATION), ".bmi");
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} else {
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auto dirhash = hasher.HashString(path);
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bmiName = cmStrCat(dirhash.substr(0, HASH_TRUNCATION), ".bmi");
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}
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this->GeneratorInfo.emplace(path, ImportedCxxModuleGeneratorInfo{ bmiName });
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return bmiName;
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}
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