[parser UpdateExpression] panics when the prefix/postfix increment/decrement target is a number #779
Description
Describe the bug
Expected an Error, not a panic.
To Reproduce
Can be reproduced with this program:
fn main() {
let mut context = boa::Context::new();
let _ = context.eval("--245");
}
Expected behavior
An Error, not a panic
Build environment (please complete the following information):
- OS: Ubuntu 20.04
- Version: 0.10.0
- Target triple: [e.g. x86_64-unknown-linux-gnu]
- Rustc version: 1.48.0-nightly (d006f5734 2020-08-28)
Additional context
Full stacktrace:
thread 'main' panicked at 'TypeError: invalid assignment to 245', /home/capitol/.cargo/registry/src/github.com-1ecc6299db9ec823/Boa-0.10.0/src/context.rs:438:18
stack backtrace:
0: rust_begin_unwind
at /rustc/d006f5734f49625c34d6fc33bf6b9967243abca8/library/std/src/panicking.rs:483
1: std::panicking::begin_panic_fmt
at /rustc/d006f5734f49625c34d6fc33bf6b9967243abca8/library/std/src/panicking.rs:437
2: boa::context::Context::set_value
at /home/capitol/.cargo/registry/src/github.com-1ecc6299db9ec823/Boa-0.10.0/src/context.rs:438
3: boa::exec::operator::<impl boa::exec::Executable for boa::syntax::ast::node::operator::UnaryOp>::run
at /home/capitol/.cargo/registry/src/github.com-1ecc6299db9ec823/Boa-0.10.0/src/exec/operator/mod.rs:206
4: <boa::syntax::ast::node::Node as boa::exec::Executable>::run
at /home/capitol/.cargo/registry/src/github.com-1ecc6299db9ec823/Boa-0.10.0/src/exec/mod.rs:108
5: boa::exec::statement_list::<impl boa::exec::Executable for boa::syntax::ast::node::statement_list::StatementList>::run
at /home/capitol/.cargo/registry/src/github.com-1ecc6299db9ec823/Boa-0.10.0/src/exec/statement_list.rs:17
6: boa::context::Context::eval
at /home/capitol/.cargo/registry/src/github.com-1ecc6299db9ec823/Boa-0.10.0/src/context.rs:494
7: boa_reproduce::main
at ./src/main.rs:3
8: core::ops::function::FnOnce::call_once
at /home/capitol/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:227