56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#include <elna/source/driver.h>
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#include "elna/source/semantic.h"
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#include "parser.hh"
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#include <sstream>
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constexpr std::size_t pointer_size = 4;
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int main()
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{
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elna::source::driver driver{ "-" };
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std::istringstream inp(R"(
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var x: Int;
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proc f();
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begin
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end;
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begin
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end.
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)");
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elna::source::lexer lexer(inp);
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yy::parser parser(lexer, driver);
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if (auto result = parser())
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{
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for (const auto& error : driver.errors())
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{
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std::cerr << error->path().string() << ':'
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<< error->line() << ':' << error->column()
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<< ": error: " << error->what()
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<< '.' << std::endl;
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}
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return result;
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}
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auto symbol_table = elna::source::add_builtin_symbols();
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elna::source::name_analysis_visitor name_analysis_visitor{ symbol_table, "-", pointer_size };
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elna::source::type_analysis_visitor type_analysis_visitor{ symbol_table, "-", pointer_size };
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name_analysis_visitor.visit(driver.tree.get());
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for (auto& definition : driver.tree->definitions())
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{
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if (auto const_definition = dynamic_cast<elna::source::constant_definition *>(definition.get()))
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{
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std::cout << "const " << const_definition->identifier() << " = "
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<< const_definition->body().number() << std::endl;
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}
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else if (auto proc_definition = dynamic_cast<elna::source::procedure_definition *>(definition.get()))
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{
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std::cout << "const " << proc_definition->identifier() << "()" << std::endl;
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}
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}
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return 0;
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}
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