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fix message errors

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This commit is contained in:
ZhuangYumin
2024-08-14 16:09:24 +00:00
parent 70a0d2ab0a
commit 1e028570e9
2 changed files with 5 additions and 4 deletions
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4
src/ast/semanticvisitor.cpp
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@ -130,11 +130,11 @@ void ASTSemanticCheckVisitor::ActuralVisit(JmpStatement_ASTNode *node) {
has_return = true; has_return = true;
node->return_value->accept(this); node->return_value->accept(this);
if (cur_func_schema.return_type != node->return_value->expr_type_info) { if (cur_func_schema.return_type != node->return_value->expr_type_info) {
throw SemanticError("Return type mismatch", 1); throw SemanticError("Type Mismatch", 1);
} }
} else { } else {
if (cur_func_schema.return_type != "void") { if (cur_func_schema.return_type != "void") {
throw SemanticError("Return type mismatch", 1); throw SemanticError("Type Mismatch", 1);
} }
} }
} }

5
src/semantic/semantic.cpp
View File

@ -14,8 +14,8 @@ class MXErrorListener : public antlr4::BaseErrorListener {
MXErrorListener() : no_problem(true) {} MXErrorListener() : no_problem(true) {}
void syntaxError(antlr4::Recognizer *recognizer, antlr4::Token *offendingSymbol, size_t line, void syntaxError(antlr4::Recognizer *recognizer, antlr4::Token *offendingSymbol, size_t line,
size_t charPositionInLine, const std::string &msg, std::exception_ptr e) override { size_t charPositionInLine, const std::string &msg, std::exception_ptr e) override {
std::cout << "line " << line << ":" << charPositionInLine << " AT " << offendingSymbol->getText() << ": " << msg // std::cerr << "line " << line << ":" << charPositionInLine << " AT " << offendingSymbol->getText() << ": " << msg
<< std::endl; // << std::endl;
no_problem = false; no_problem = false;
} }
bool IsOk() { return no_problem; } bool IsOk() { return no_problem; }
@ -79,6 +79,7 @@ void SemanticCheck(std::istream &fin, std::shared_ptr<Program_ASTNode> &ast_out)
lexer.addErrorListener(&error_listener); lexer.addErrorListener(&error_listener);
antlr4::CommonTokenStream tokens(&lexer); antlr4::CommonTokenStream tokens(&lexer);
tokens.fill(); tokens.fill();
if (!error_listener.IsOk()) throw SemanticError("Invalid Identifier", 1);
MXParser parser(&tokens); MXParser parser(&tokens);
parser.removeErrorListeners(); parser.removeErrorListeners();
parser.addErrorListener(&error_listener); parser.addErrorListener(&error_listener);