38 lines
916 B
C++
38 lines
916 B
C++
#pragma once
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#include <string>
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#include "database/db.hpp"
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#include "query_engine/exceptions/exceptions.hpp"
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#include "query_engine/util.hpp"
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#include "query_program.hpp"
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// preparations before execution
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// execution
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// postprocess the results
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// BARRIER!
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namespace barrier
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{
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Db& trans(::Db& ref);
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}
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template <typename Stream>
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class ProgramExecutor
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{
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public:
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// QueryProgram has to know about the Stream
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// Stream has to be passed in this function for every execution
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auto execute(QueryProgram<Stream> &program, Db &db,
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Stream &stream)
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{
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try {
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// TODO: return result of query/code exection
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return program.code->run(barrier::trans(db), program.stripped.arguments, stream);
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} catch (...) {
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// TODO: return more information about the error
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throw QueryEngineException("code execution error");
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}
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}
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};
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