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[FunC] Forbid auto-creating undefined symbols

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This commit is contained in:
Aleksandr Kirsanov 2024-05-02 20:54:07 +03:00
parent 4994ae8edd
commit f217a7d312
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GPG key ID: B758BBAA01FFB3D3
7 changed files with 40 additions and 16 deletions
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16
crypto/func/parse-func.cpp
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@ -396,19 +396,11 @@ SymValCodeFunc* make_new_glob_func(SymDef* func_sym, TypeExpr* func_type, bool i
return res;
}
bool check_global_func(const Lexem& cur, sym_idx_t func_name = 0) {
if (!func_name) {
func_name = cur.val;
}
bool check_global_func(const Lexem& cur, sym_idx_t func_name) {
SymDef* def = sym::lookup_symbol(func_name);
if (!def) {
cur.loc.show_error(std::string{"undefined function `"} + symbols.get_name(func_name) +
"`, defining a global function of unknown type");
def = sym::define_global_symbol(func_name, 0, cur.loc);
func_assert(def && "cannot define global function");
++undef_func_cnt;
make_new_glob_func(def, TypeExpr::new_func()); // was: ... ::new_func()
return true;
cur.error("undefined symbol `" + symbols.get_name(func_name) + "`");
return false;
}
SymVal* val = dynamic_cast<SymVal*>(def->value);
if (!val) {
@ -652,7 +644,7 @@ Expr* parse_expr100(Lexer& lex, CodeBlob& code, bool nv) {
// std::cerr << "defined new variable " << lex.cur().str << " : " << res->e_type << std::endl;
} else {
if (!sym) {
check_global_func(lex.cur());
check_global_func(lex.cur(), lex.cur().val);
sym = sym::lookup_symbol(lex.cur().val);
}
res->sym = sym;