comptime-state propagation through generated struct field resolution

compiler_tests.odin

@@ -13819,17 +13819,29 @@ Generated func($T type) type {
 GeneratedInt :: alias Generated(i32)
 ordered Names = {}
 
-Map func($E, $V type) type { return struct { count usize } }
-
-init func($E, $V type, values meta.EnumFieldStruct(E, ?V, some!(none))) Map(E, V) {
-	count usize = 0
+Map func($E, $V type) type {
 	match typeinfo!(E) {
-		.enum |info|: expand for info.fields |field| {
-			if field!(values, field.name) |_| { count += 1 }
+		.enum |info|: return struct {
+			present [info.fields.len]mut bool
+			values [info.fields.len]mut V
 		}
 		else: compile_error!("EnumMap key must be an enum")
 	}
-	return Map(E, V) {count = count}
+}
+
+init func($E, $V type, values meta.EnumFieldStruct(E, ?V, some!(none))) Map(E, V) {
+	map Map(E, V) = undefined
+	match typeinfo!(E) {
+		.enum |info|: expand for info.fields |field, index| {
+			map.present[index] = false
+			if field!(values, field.name) |value| {
+				map.present[index] = true
+				map.values[index] = value
+			}
+		}
+		else: compile_error!("EnumMap key must be an enum")
+	}
+	return map
 }
 
 main func() i32 {
@@ -13875,7 +13887,8 @@ main func() i32 {
 		ident = "identifier",
 		int = "integer",
 	})
-	if map.count != 2 { return 9 }
+	if !map.present[0] or !map.present[1] or map.present[2] { return 9 }
+	if map.values[0].len != 10 or map.values[1].len != 7 { return 18 }
 	return 0
 }
 `