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Handle Misc casts slightly more sanely.

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Still insanely, though.
This commit is contained in:
Scott Olson 2016-06-12 21:00:23 -06:00
parent 23b504c2d1
commit 25a3be9c7e
1 changed files with 8 additions and 2 deletions
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10
src/interpreter/mod.rs
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@ -1045,8 +1045,14 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
Misc => {
// FIXME(solson): Wrong for almost everything.
let size = dest_layout.size(&self.tcx.data_layout).bytes() as usize;
self.memory.copy(src, dest, size)?;
let dest_size = self.type_size(dest_ty, self.substs());
let src_size = self.type_size(src_ty, self.substs());
if dest_size == src_size {
warn!("performing fishy cast from {:?} to {:?}", src_ty, dest_ty);
self.memory.copy(src, dest, dest_size)?;
} else {
return Err(EvalError::Unimplemented(format!("can't handle cast: {:?}", rvalue)));
}
}
_ => return Err(EvalError::Unimplemented(format!("can't handle cast: {:?}", rvalue))),