66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
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#pragma once
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// DEPRICATED!
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#include "config/config.hpp"
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#include "query/frontend/cypher/traverser.hpp"
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#include "query/language/cypher/errors.hpp"
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#include "template_engine/engine.hpp"
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#include "utils/string/file.hpp"
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#include "utils/type_discovery.hpp"
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template <typename Stream>
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class CypherBackend
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{
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public:
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CypherBackend() : logger(logging::log->logger("CypherBackend"))
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{
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// load template file
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#ifdef BARRIER
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std::string template_path =
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CONFIG(config::BARRIER_TEMPLATE_CPU_CPP_PATH);
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#else
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std::string template_path = CONFIG(config::TEMPLATE_CPU_CPP_PATH);
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#endif
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template_file = utils::read_file(template_path.c_str());
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}
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template <typename Tree>
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void generate_code(const Tree &tree, const std::string &query,
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const uint64_t stripped_hash, const std::string &path)
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{
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CppTraverser cpp_traverser;
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cpp_traverser.reset();
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try {
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tree.root->accept(cpp_traverser);
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} catch (const CypherSemanticError &e) {
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throw e;
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} catch (const std::exception &e) {
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logger.error("AST traversal error: {}", std::string(e.what()));
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throw e;
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}
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// save the code
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std::string generated = template_engine::render(
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template_file, {{"class_name", "CodeCPU"},
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{"stripped_hash", std::to_string(stripped_hash)},
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{"query", query},
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#ifdef BARRIER
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{"stream", "RecordStream<::io::Socket>"},
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#else
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{"stream", type_name<Stream>().to_string()},
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#endif
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{"code", cpp_traverser.code}});
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logger.trace("generated code: {}", generated);
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utils::write_file(generated, path);
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}
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protected:
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Logger logger;
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private:
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std::string template_file;
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};
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