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simulator read/write types must be passive

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This commit is contained in:
Jacob Lifshay 2025-03-27 23:03:44 -07:00
parent fdc73b5f3b
commit ec3a61513b
Signed by: programmerjake
SSH key fingerprint: SHA256:HnFTLGpSm4Q4Fj502oCFisjZSoakwEuTsJJMSke63RQ
1 changed files with 5 additions and 0 deletions
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5
crates/fayalite/src/sim.rs
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@ -6698,6 +6698,11 @@ impl SimulationModuleState {
mut target: Target, mut target: Target,
which_module: WhichModule, which_module: WhichModule,
) -> CompiledValue<CanonicalType> { ) -> CompiledValue<CanonicalType> {
assert!(
target.canonical_ty().is_passive(),
"simulator read/write expression must have a passive type \
(recursively contains no fields with `#[hdl(flip)]`)"
);
if let Some(&retval) = self.io_targets.get(&target) { if let Some(&retval) = self.io_targets.get(&target) {
return retval; return retval;
} }