39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
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#include <emit.hh>
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#include <iostream>
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namespace xlang {
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EmitListener::EmitListener(std::string_view outputfile) : output{outputfile} {}
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void EmitListener::enterFile(xlangParser::FileContext *ctx) {
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output << "data $printformat = { b \"%ld\\n\", b 0 }" << std::endl;
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(void)ctx;
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}
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void EmitListener::enterFunction(xlangParser::FunctionContext *ctx) {
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output << std::endl
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<< "export function w $" << ctx->Identifier()->getSymbol()->getText()
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<< "()" << std::endl
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<< "{" << std::endl
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<< "@start" << std::endl;
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}
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void EmitListener::exitFunction(xlangParser::FunctionContext *ctx) {
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output << " ret 0" << std::endl << "}" << std::endl;
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(void)ctx;
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}
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void EmitListener::exitStatement(xlangParser::StatementContext *ctx) {
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if (ctx->Print()) {
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output << " call $printf(l $printformat, ..., w %v)" << std::endl;
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}
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}
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void EmitListener::exitFactor(xlangParser::FactorContext *ctx) {
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if (auto integer = ctx->Integer()) {
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output << " %v = w copy " << integer->getSymbol()->getText() << std::endl;
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}
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}
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} // namespace xlang
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