vtables, protocol

src/types.zig

@@ -200,6 +200,36 @@ pub const Type = union(enum) {
         };
     }
 
+    /// Returns the canonical type name for this type, or null for complex types.
+    /// Used for looking up impl methods on non-struct types (e.g., s32.eq).
+    pub fn toName(self: Type) ?[]const u8 {
+        return switch (self) {
+            .signed => |w| switch (w) {
+                8 => "s8",
+                16 => "s16",
+                32 => "s32",
+                64 => "s64",
+                else => null,
+            },
+            .unsigned => |w| switch (w) {
+                8 => "u8",
+                16 => "u16",
+                32 => "u32",
+                64 => "u64",
+                else => null,
+            },
+            .f32 => "f32",
+            .f64 => "f64",
+            .boolean => "bool",
+            .string_type => "string",
+            .void_type => "void",
+            .struct_type => |n| n,
+            .enum_type => |n| n,
+            .union_type => |n| n,
+            else => null,
+        };
+    }
+
     pub fn fromTypeExpr(node: *Node) ?Type {
         if (node.data != .type_expr) return null;
         return fromName(node.data.type_expr.name);