roc/crates/compiler/test_derive/src/eq.rs
2022-10-12 16:38:36 -05:00

58 lines
2.4 KiB
Rust

#![cfg(test)]
// Even with #[allow(non_snake_case)] on individual idents, rust-analyzer issues diagnostics.
// See https://github.com/rust-lang/rust-analyzer/issues/6541.
// For the `v!` macro we use uppercase variables when constructing tag unions.
#![allow(non_snake_case)]
use crate::{util::check_single_lset_immediate, v};
use roc_module::symbol::Symbol;
use roc_types::subs::Variable;
use roc_derive_key::DeriveBuiltin::IsEq;
#[test]
fn immediates() {
// Everything is an immediate for `Eq`.
check_single_lset_immediate(IsEq, v!(U8), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(U16), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(U32), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(U64), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(U128), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(I8), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(I16), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(I32), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(I64), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(I128), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(STR), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(
IsEq,
v!(Symbol::LIST_LIST v!(U8)),
Symbol::BOOL_STRUCTURAL_EQ,
);
check_single_lset_immediate(
IsEq,
v!(Symbol::LIST_LIST v!(STR)),
Symbol::BOOL_STRUCTURAL_EQ,
);
check_single_lset_immediate(IsEq, v!({ a: v!(U8), }), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(IsEq, v!(EMPTY_RECORD), Symbol::BOOL_STRUCTURAL_EQ);
check_single_lset_immediate(
IsEq,
v!([ A v!(U8) v!(STR), B v!(STR) ]),
Symbol::BOOL_STRUCTURAL_EQ,
);
check_single_lset_immediate(
IsEq,
v!([ A v!(U8) v!(STR), B v!(STR) ]),
Symbol::BOOL_STRUCTURAL_EQ,
);
check_single_lset_immediate(
IsEq,
v!([ Nil, Cons v!(^lst)] as lst),
Symbol::BOOL_STRUCTURAL_EQ,
);
// NOTE: despite this reaching an immediate, `F64`s will never actually be allowed to be
// compared, because obligation checking will rule them out from `isEq`!
check_single_lset_immediate(IsEq, v!(F64), Symbol::BOOL_STRUCTURAL_EQ);
}