language-servers/roc
1
0
Fork 0
mirror of https://github.com/roc-lang/roc.git synced 2025-09-27 05:49:08 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

Don't glue ManuallyDrop for types that are Copy

Browse source
This commit is contained in:
Richard Feldman 2022-08-18 11:50:33 -04:00
parent 577128d410
commit 64cea0e7ff
No known key found for this signature in database
GPG key ID: F1F21AA5B1D9E43B
2 changed files with 20 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

17
crates/glue/src/rust_glue.rs
View file

@ -2206,9 +2206,7 @@ fn tag_union_struct_help<'a, I: Iterator<Item = &'a (L, TypeId)>, L: Display + P
.collect::<Vec<String>>()
.join(", ");
let args_to_payload = if is_tag_union_payload {
format!(
"core::mem::ManuallyDrop::new({payload_type_name} {{\n{}\n{INDENT}{INDENT}{INDENT}{INDENT}}})",
sorted_fields
let prefixed_fields = sorted_fields
.iter()
.enumerate()
.map(|(index, (label, _))| {
@ -2223,8 +2221,17 @@ fn tag_union_struct_help<'a, I: Iterator<Item = &'a (L, TypeId)>, L: Display + P
format!("{indents}f{label}: arg{index},")
})
.collect::<Vec<String>>()
.join("\n")
)
.join("\n");
if cannot_derive_copy(types.get_type(payload_id), types) {
format!(
"core::mem::ManuallyDrop::new({payload_type_name} {{\n{}\n{INDENT}{INDENT}{INDENT}{INDENT}}})",prefixed_fields)
} else {
format!(
"{payload_type_name} {{\n{}\n{INDENT}{INDENT}{INDENT}{INDENT}}}",
prefixed_fields
)
}
} else {
"core::mem::ManuallyDrop::new(arg0)".to_string()
};