diff options
| author | Griffin Smith <grfn@gws.fyi> | 2021-03-28T17·28-0400 |
|---|---|---|
| committer | glittershark <grfn@gws.fyi> | 2021-03-28T17·33+0000 |
| commit | 8e13b1303a0d152c2f3b68f2421163e94fdf226c (patch) | |
| tree | 0cac0fee2cd52f912bb118cff78fdca9d28ac895 /users/glittershark/achilles/src/parser/type_.rs | |
| parent | db62866d820cf524b67cebe34033d3928804cf3c (diff) | |
feat(achilles): Implement a Unit type r/2356
Add support for a zero-sized Unit type. This requires some special at the codegen level because LLVM (unsurprisingly) only allows Void types in function return position - to make that a little easier to handle there's a new pass that strips any unit-only expressions and pulls unit-only function arguments up to new `let` bindings, so we never have to actually pass around unit values. Change-Id: I0fc18a516821f2d69172c42a6a5d246b23471e38 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2695 Reviewed-by: glittershark <grfn@gws.fyi> Tested-by: BuildkiteCI
Diffstat (limited to 'users/glittershark/achilles/src/parser/type_.rs')
| -rw-r--r-- | users/glittershark/achilles/src/parser/type_.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/users/glittershark/achilles/src/parser/type_.rs b/users/glittershark/achilles/src/parser/type_.rs index 1e6e380bb8..8a1081e252 100644 --- a/users/glittershark/achilles/src/parser/type_.rs +++ b/users/glittershark/achilles/src/parser/type_.rs @@ -29,6 +29,7 @@ named!(pub type_(&str) -> Type, alt!( tag!("float") => { |_| Type::Float } | tag!("bool") => { |_| Type::Bool } | tag!("cstring") => { |_| Type::CString } | + tag!("()") => { |_| Type::Unit } | function_type => { |ft| Type::Function(ft) }| ident => { |id| Type::Var(id) } | delimited!( @@ -51,6 +52,7 @@ mod tests { assert_eq!(test_parse!(type_, "float"), Type::Float); assert_eq!(test_parse!(type_, "bool"), Type::Bool); assert_eq!(test_parse!(type_, "cstring"), Type::CString); + assert_eq!(test_parse!(type_, "()"), Type::Unit); } #[test] |