close some gaps in the type system

2026-07-19 01:01:11 +02:00
parent c7e3162ecb
commit 95f90cc306
12 changed files with 367 additions and 78 deletions
@@ -1747,6 +1747,19 @@ canonical_type :: proc(
 		mapping[index] = resolved
 		return resolved
 	}
+	if item.kind == .Sum {
+		left := canonical_type(module, item.child, mapping, visiting)
+		right := canonical_type(module, item.extra, mapping, visiting)
+		if resolved, compose_error := types.compose_sum(&module.type_store, left, right); compose_error == .None {
+			mapping[index] = resolved
+			return resolved
+		}
+		item.child = left
+		item.extra = right
+		resolved := types.intern(&module.type_store, item)
+		mapping[index] = resolved
+		return resolved
+	}
 	if item.kind == .Function {
 		params := make([]types.Type, int(item.field_count), context.temp_allocator)
 		for param, param_index in types.params_for(&module.type_store, value) {