Revert "cgen: fix struct_eq (#7639)"

This reverts commit 164dd3000b.

vlib/v/gen/auto_eq_methods.v

@@ -18,22 +18,29 @@ fn (mut g Gen) gen_struct_equality_fn(left table.Type) string {
 	fn_builder.writeln('static bool ${ptr_typ}_struct_eq($ptr_typ a, $ptr_typ b) {')
 	for field in info.fields {
 		sym := g.table.get_type_symbol(field.typ)
-		if sym.kind == .string {
+		match sym.kind {
+			.string {
 				fn_builder.writeln('\tif (string_ne(a.$field.name, b.$field.name)) {')
-		} else if sym.kind == .struct_ && field.typ.nr_muls() == 0 {
+			}
+			.struct_ {
 				eq_fn := g.gen_struct_equality_fn(field.typ)
 				fn_builder.writeln('\tif (!${eq_fn}_struct_eq(a.$field.name, b.$field.name)) {')
-		} else if sym.kind == .array && field.typ.nr_muls() == 0 {
+			}
+			.array {
 				eq_fn := g.gen_array_equality_fn(field.typ)
 				fn_builder.writeln('\tif (!${eq_fn}_arr_eq(a.$field.name, b.$field.name)) {')
-		} else if sym.kind == .map && field.typ.nr_muls() == 0 {
+			}
+			.map {
 				eq_fn := g.gen_map_equality_fn(field.typ)
 				fn_builder.writeln('\tif (!${eq_fn}_map_eq(a.$field.name, b.$field.name)) {')
-		} else if sym.kind == .function {
+			}
+			.function {
 				fn_builder.writeln('\tif (*((voidptr*)(a.$field.name)) != *((voidptr*)(b.$field.name))) {')
-		} else {
+			}
+			else {
 				fn_builder.writeln('\tif (a.$field.name != b.$field.name) {')
 			}
+		}
 		fn_builder.writeln('\t\treturn false;')
 		fn_builder.writeln('\t}')
 	}

vlib/v/gen/cgen.v

@@ -3036,23 +3036,6 @@ fn (mut g Gen) infix_expr(node ast.InfixExpr) {
 		}
 		g.expr(node.right)
 		g.write(')')
-	} else if node.op in [.eq, .ne] && left_sym.kind == .struct_ && right_sym.kind == .struct_ {
-		ptr_typ := g.gen_struct_equality_fn(left_type)
-		if node.op == .eq {
-			g.write('${ptr_typ}_struct_eq(')
-		} else if node.op == .ne {
-			g.write('!${ptr_typ}_struct_eq(')
-		}
-		if node.left_type.is_ptr() {
-			g.write('*')
-		}
-		g.expr(node.left)
-		g.write(', ')
-		if node.right_type.is_ptr() {
-			g.write('*')
-		}
-		g.expr(node.right)
-		g.write(')')
 	} else if node.op in [.key_in, .not_in] {
 		if node.op == .not_in {
 			g.write('!')

vlib/v/tests/struct_equality_test.v

@@ -1,15 +0,0 @@
-struct User {
-	name string
-	age  int
-}
-
-fn test_struct_equality() {
-	mut usr1 := User{'sanath', 28}
-	mut usr2 := User{'sanath', 28}
-	if usr1 == usr2 {
-		println('Same User')
-	} else {
-		println('Not same User')
-	}
-	assert usr1 == usr2
-}