Improve error message when trying to soa_derive Copy

Luthaf · Luthaf · commit dc817010f935 · 2021-11-09T12:30:44.000+01:00
diff --git a/soa-derive-internal/src/input.rs b/soa-derive-internal/src/input.rs
@@ -163,7 +163,11 @@ impl Input {
                             ..
                         }) => {
                             for value in string.value().split(',') {
-                                extra_attrs.add_derive(value.trim());
+                                let value = value.trim();
+                                if value == "Copy" {
+                                    panic!("can not derive Copy for SoA vectors");
+                                }
+                                extra_attrs.add_derive(value);
                             }
                         }
                         _ => panic!(

Original file line number	Diff line number	Diff line change
`@@ -163,7 +163,11 @@ impl Input {`
`163`	`163`	`..`
`164`	`164`	`}) => {`
`165`	`165`	`for value in string.value().split(',') {`
`166`		`- extra_attrs.add_derive(value.trim());`
	`166`	`+ let value = value.trim();`
	`167`	`+ if value == "Copy" {`
	`168`	`+ panic!("can not derive Copy for SoA vectors");`
	`169`	`+ }`
	`170`	`+ extra_attrs.add_derive(value);`
`167`	`171`	`}`
`168`	`172`	`}`
`169`	`173`	`_ => panic!(`