56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
#pragma once
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#include <iostream>
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#include <typeinfo>
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#include <map>
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#include "cypher/visitor/traverser.hpp"
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#include "query_engine/util.hpp"
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using std::cout;
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using std::endl;
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class CreateTraverser : public Traverser
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{
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private:
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std::string key;
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uint32_t index{0};
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public:
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std::string code;
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void visit(ast::Create& create) override
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{
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code += line("auto& t = db.tx_engine.begin();");
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code += line("auto vertex_accessor = db.graph.vertices.insert(t);");
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Traverser::visit(create);
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};
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void visit(ast::Property& property) override
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{
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key = property.idn->name;
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Traverser::visit(property);
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code += line("vertex_accessor.property(");
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code += line("\t\"" + key + "\", args[" + std::to_string(index) + "]");
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code += line(");");
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++index;
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}
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void visit(ast::Return& ret) override
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{
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code += line("t.commit();");
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code += line("auto &properties = vertex_accessor.properties();");
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code += line("ResultList::data_t data = {&properties};");
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code += line("auto result_data = "
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"std::make_shared<ResultList>(std::move(data));");
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code += line("QueryResult::data_t query_data = {{\"" +
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ret.return_list->value->name + "\", result_data}};");
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code += line("return std::make_shared<QueryResult>"
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"(std::move(query_data));");
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}
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};
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