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write symbol check

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This commit is contained in:
ZhuangYumin
2024-08-13 08:28:21 +00:00
parent 4beb9585c5
commit a39625e4f2
7 changed files with 311 additions and 52 deletions
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6
src/semantic/semantic.cpp
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@ -27,14 +27,16 @@ std::shared_ptr<Program_ASTNode> CheckAndDecorate(std::shared_ptr<Program_ASTNod
void SemanticCheck(std::istream &fin, std::shared_ptr<Program_ASTNode> &ast_out) {
antlr4::ANTLRInputStream input(fin);
MXLexer lexer(&input);
MXErrorListener error_listener;
lexer.removeErrorListeners();
lexer.addErrorListener(&error_listener);
antlr4::CommonTokenStream tokens(&lexer);
tokens.fill();
MXParser parser(&tokens);
parser.removeErrorListeners();
MXErrorListener error_listener;
parser.addErrorListener(&error_listener);
antlr4::tree::ParseTree *tree = parser.mxprog();
if (!error_listener.IsOk()) throw SemanticError("Fatal error: syntax error", 1);
if (!error_listener.IsOk()) throw SemanticError("Invalid Identifier", 1);
Visitor visitor;
std::shared_ptr<Program_ASTNode> ast = BuildAST(&visitor, tree);
ast_out = CheckAndDecorate(ast);