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Fix FunC UB (#656)

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* Fix UB in func

* Improve optimizing int consts and unused variables in FunC

* Bump funC version to 0.4.3

* Fix analyzing repeat loop

---------

Co-authored-by: SpyCheese <mikle98@yandex.ru>
This commit is contained in:
EmelyanenkoK 2023-04-03 10:13:39 +03:00 • committed by GitHub
parent f51eb2d747
commit 8eb167b76a
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8 changed files with 31 additions and 8 deletions
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4
crypto/func/gen-abscode.cpp
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@ -205,6 +205,10 @@ int Expr::predefine_vars() {
case _Var:
if (!sym) {
assert(val < 0 && here.defined());
if (prohibited_var_names.count(sym::symbols.get_name(~val))) {
throw src::ParseError{
here, PSTRING() << "symbol `" << sym::symbols.get_name(~val) << "` cannot be redefined as a variable"};
}
sym = sym::define_symbol(~val, false, here);
// std::cerr << "predefining variable " << sym::symbols.get_name(~val) << std::endl;
if (!sym) {