From 99f141f741b643327a2628963d95998c862c7ed2 Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Sun, 19 Apr 2026 04:22:42 +0300
Subject: [PATCH] all: fix more tests

---
 vlib/builtin/js/array.js.v                    | 22 +++++++++----
 vlib/builtin/js/map.js.v                      | 10 +++---
 vlib/v/gen/c/cgen.v                           | 10 +++---
 vlib/v/gen/c/fn.v                             | 12 +++++--
 vlib/v/gen/c/if.v                             | 17 ++++++----
 vlib/v/gen/c/str_intp.v                       |  6 ++++
 .../testdata/c_ident_for_ptr_arg.c.must_have  |  2 +-
 .../gen/c/testdata/dump_low_alloc.c.must_have |  2 +-
 .../testdata/interface_auto_free.c.must_have  | 10 +++---
 .../c/testdata/translated_module.c.must_have  |  2 +-
 vlib/v/gen/js/auto_eq_methods.v               |  6 ++--
 vlib/v/gen/js/deep_copy.v                     |  2 +-
 vlib/v/gen/js/js.v                            | 33 ++++++++++++++++---
 13 files changed, 93 insertions(+), 41 deletions(-)

diff --git a/vlib/builtin/js/array.js.v b/vlib/builtin/js/array.js.v
index 64ac932e1..9926eecc6 100644
--- a/vlib/builtin/js/array.js.v
+++ b/vlib/builtin/js/array.js.v
@@ -158,6 +158,11 @@ fn empty_array() array {
 	return JS.makeEmptyArray()
 }
 
+#function v_clone_for_array_value(value) {
+#if (value instanceof $ref || value instanceof voidptr || typeof value === 'function') return value;
+#return v_clone_value(value);
+#}
+
 fn (a &array) set_len(i int) {
 	#a.arr.arr.length=i
 }
@@ -208,19 +213,22 @@ pub fn (a array) slice(start int, end int) array {
 
 pub fn (mut a array) insert(i int, val voidptr) {
 	#a.val.arr.make_copy()
-	#a.val.arr.arr.splice(i,0,val)
+	#a.val.arr.arr.splice(i,0,v_clone_for_array_value(val))
+	#a.val.arr.len.val = a.val.arr.arr.length
 }
 
 pub fn (mut a array) insert_many(i int, val voidptr, size int) {
-	#a.val.arr.arr.splice(i,0,...val.arr.slice(0,+size))
+	#a.val.arr.make_copy()
+	#a.val.arr.arr.splice(i,0,...val.arr.slice(0,+size).map(v_clone_for_array_value))
+	#a.val.arr.len.val = a.val.arr.arr.length
 }
 
 fn (mut a array) push(val voidptr) {
 	#a.val.arr.make_copy()
-	#if (arguments[2] && arguments[2].valueOf()) {a.val.arr.arr.push(...val)} else {
-	#a.val.arr.arr.push(val)
+	#if (arguments[2] && arguments[2].valueOf()) {a.val.arr.arr.push(...val.map(v_clone_for_array_value))} else {
+	#a.val.arr.arr.push(v_clone_for_array_value(val))
 	#}
-	#a.val.arr.len.val += 1
+	#a.val.arr.len.val = a.val.arr.arr.length
 }
 
 fn v_filter(arr array, callback fn (voidptr) bool) array {
@@ -302,6 +310,7 @@ fn arr_copy(mut dst array, src array, count int) {
 pub fn (mut a array) delete_many(i int, size int) {
 	#a.val.arr.make_copy()
 	#a.val.arr.arr.splice(i.valueOf(),size.valueOf())
+	#a.val.arr.len.val = a.val.arr.arr.length
 }
 
 // prepend prepends one value to the array.
@@ -331,6 +340,7 @@ pub fn (mut a array) reverse_in_place() {
 pub fn (mut a array) clear() {
 	#a.val.arr.make_copy()
 	#a.val.arr.arr.length = 0
+	#a.val.arr.len.val = 0
 }
 
 // reduce executes a given reducer function on each element of the array, resulting in a single output value.
@@ -350,7 +360,7 @@ pub fn (mut a array) pop() voidptr {
 	mut res := unsafe { nil }
 	#a.val.arr.make_copy()
 	#res = a.val.arr.arr.pop()
-	#a.val.arr.len.val -= 1
+	#a.val.arr.len.val = a.val.arr.arr.length
 
 	return res
 }
diff --git a/vlib/builtin/js/map.js.v b/vlib/builtin/js/map.js.v
index 3e07ea70e..8b11e9a52 100644
--- a/vlib/builtin/js/map.js.v
+++ b/vlib/builtin/js/map.js.v
@@ -9,7 +9,7 @@ pub:
 fn (mut m map) internal_set(key JS.Any, val JS.Any) {
 	//$if es5 {
 	#let skey = key;
-	#if (key.hasOwnProperty('$toJS')) key = key.$toJS();
+	#if (key != null && typeof key.$toJS === 'function') key = key.$toJS();
 	#if (!(key in m.val.map)) {
 	#m.val.length++;
 	#m.val.map[key] = { key: skey, val: val };
@@ -27,7 +27,7 @@ fn (mut m map) internal_set(key JS.Any, val JS.Any) {
 fn (mut m map) internal_get(key JS.Any) JS.Any {
 	mut val := JS.Any(unsafe { nil })
 	//$if es5 {
-	#if (typeof key != "string" && key.hasOwnProperty('$toJS')) key = key.$toJS();
+	#if (typeof key != "string" && key != null && typeof key.$toJS === 'function') key = key.$toJS();
 	#if (key in m.val.map) {
 	#val = m.val.map[key].val
 	#} else {
@@ -43,11 +43,11 @@ fn (mut m map) internal_get(key JS.Any) JS.Any {
 
 #map.prototype.get = function (key) { return map_internal_get(this,key); }
 #map.prototype.set = function(key,val) { map_internal_set(this,key,val); }
-#map.prototype.has = function (key) { if (typeof key != "string" && key.hasOwnProperty('$toJS')) { key = key.$toJS() } return key in this.map; }
+#map.prototype.has = function (key) { if (typeof key != "string" && key != null && typeof key.$toJS === 'function') { key = key.$toJS() } return key in this.map; }
 // Removes the mapping of a particular key from the map.
 @[unsafe]
 pub fn (mut m map) delete(key JS.Any) {
-	#let k = key.hasOwnProperty('$toJS') ? key.$toJS() : key;
+	#let k = key != null && typeof key.$toJS === 'function' ? key.$toJS() : key;
 
 	#if (k in m.val.map) {
 	#delete m.val.map[k];
@@ -91,4 +91,4 @@ pub fn (m map) values() array {
 #return res;
 #}
 
-#map.prototype.getOrSet = function (key, init) { const skey = key; if (typeof key != "string" && key.hasOwnProperty('$toJS')) { key = key.$toJS() } if (key in this.map) { return this.map[key].val; } this.length++; this.map[key] = { key: skey, val: init }; return this.map[key].val; }
+#map.prototype.getOrSet = function (key, init) { const skey = key; if (typeof key != "string" && key != null && typeof key.$toJS === 'function') { key = key.$toJS() } if (key in this.map) { return this.map[key].val; } this.length++; this.map[key] = { key: skey, val: init }; return this.map[key].val; }
diff --git a/vlib/v/gen/c/cgen.v b/vlib/v/gen/c/cgen.v
index f48070002..a54c70287 100644
--- a/vlib/v/gen/c/cgen.v
+++ b/vlib/v/gen/c/cgen.v
@@ -4454,14 +4454,12 @@ fn (mut g Gen) expr_with_cast(expr ast.Expr, got_type_raw ast.Type, expected_typ
 					return
 				}
 			}
-			// For auto-heap variables in generic contexts, the variable is
-			// already a pointer in C. Treat got_is_ptr as true to prevent
-			// adding a spurious `&`, and suppress the auto-heap deref in
-			// g.expr() so it emits `t` (the pointer) instead of `(*t)`.
+			// Auto-heap variables are already pointers in C. Treat them as
+			// pointer-backed here to avoid wrapping the raw pointer in an
+			// extra HEAP(...) and to suppress the usual auto-deref in g.expr().
 			mut effective_got_is_ptr := got_is_ptr
 			mut suppress_auto_heap_deref := false
-			if !got_is_ptr && g.cur_fn != unsafe { nil } && g.cur_concrete_types.len > 0
-				&& expr is ast.Ident && g.resolved_ident_is_auto_heap(expr) {
+			if !got_is_ptr && expr is ast.Ident && g.resolved_ident_is_auto_heap(expr) {
 				effective_got_is_ptr = true
 				suppress_auto_heap_deref = true
 			}
diff --git a/vlib/v/gen/c/fn.v b/vlib/v/gen/c/fn.v
index d3344ae0a..3db8bc77c 100644
--- a/vlib/v/gen/c/fn.v
+++ b/vlib/v/gen/c/fn.v
@@ -6451,10 +6451,18 @@ fn (mut g Gen) ref_or_deref_arg_ex(arg ast.CallArg, expected_type_ ast.Type, lan
 				}
 			}
 			effective_arg_sym := g.table.sym(effective_arg_typ)
-			if effective_arg_typ.is_ptr() && effective_arg_typ.deref() == expected_ref_inner_type {
+			effective_arg_is_auto_heap_ident := effective_arg_expr is ast.Ident
+				&& g.resolved_ident_is_auto_heap(effective_arg_expr)
+			if (effective_arg_typ.is_ptr() && effective_arg_typ.deref() == expected_ref_inner_type)
+				|| (effective_arg_is_auto_heap_ident
+				&& effective_arg_typ.idx() == expected_ref_inner_type.idx()) {
 				g.prevent_sum_type_unwrapping_once = g.is_expr_smartcast_to_sumtype(effective_arg_expr,
 					expected_ref_inner_type)
-				g.expr(effective_arg_expr)
+				if effective_arg_is_auto_heap_ident {
+					g.write_raw_receiver_expr(effective_arg_expr)
+				} else {
+					g.expr(effective_arg_expr)
+				}
 			} else if effective_arg_sym.kind == expected_ref_inner_sym.kind
 				&& effective_arg_typ.idx() == expected_ref_inner_type.idx() {
 				g.prevent_sum_type_unwrapping_once = g.is_expr_smartcast_to_sumtype(effective_arg_expr,
diff --git a/vlib/v/gen/c/if.v b/vlib/v/gen/c/if.v
index e74297e9e..9ae0db0e9 100644
--- a/vlib/v/gen/c/if.v
+++ b/vlib/v/gen/c/if.v
@@ -35,10 +35,12 @@ fn (mut g Gen) write_if_guard_gc_pin(scope &ast.Scope, name string, cvar_name st
 	}
 }
 
-fn (mut g Gen) if_guard_error_cleanup(_ string, _ ast.Type) {
-	// TODO: the frees here cause double-free crashes when error objects
-	// are shared/global (e.g. map access errors reuse the same MessageError).
-	// Disabled until a safe ownership/refcounting mechanism is implemented.
+fn (mut g Gen) if_guard_error_cleanup(cvar_name string, expr_type ast.Type) {
+	if expr_type.has_flag(.option) {
+		g.writeln('\tif (${cvar_name}.state == 2 && ${cvar_name}.err._object != _const_none__._object) { builtin___v_free(${cvar_name}.err._object); }')
+	} else if expr_type.has_flag(.result) {
+		g.writeln('\tif (${cvar_name}.is_error && ${cvar_name}.err._object != _const_none__._object) { builtin___v_free(${cvar_name}.err._object); }')
+	}
 }
 
 fn (mut g Gen) need_tmp_var_in_if(node ast.IfExpr) bool {
@@ -394,6 +396,7 @@ fn (mut g Gen) if_expr(node ast.IfExpr) {
 	mut guard_vars := []string{}
 	mut guard_expr_types := []ast.Type{len: node.branches.len}
 	mut guard_else_uses_err := []bool{len: node.branches.len}
+	mut guard_owns_error := []bool{len: node.branches.len}
 	for i, branch in node.branches {
 		cond := branch.cond
 		if cond is ast.IfGuardExpr {
@@ -403,6 +406,7 @@ fn (mut g Gen) if_expr(node ast.IfExpr) {
 			}
 			guard_idx = i // saves the last if guard index
 			guard_else_uses_err[i] = g.if_guard_else_uses_err(node, i)
+			guard_owns_error[i] = cond.expr is ast.IndexExpr
 			if cond.expr !in [ast.IndexExpr, ast.PrefixExpr] {
 				var_name := g.new_tmp_var()
 				guard_vars[i] = var_name
@@ -470,7 +474,7 @@ fn (mut g Gen) if_expr(node ast.IfExpr) {
 							g.writeln('\tIError err = ${cvar_name}.err;')
 						}
 					}
-				} else if guard_expr_types[guard_idx] != 0 {
+				} else if guard_owns_error[guard_idx] && guard_expr_types[guard_idx] != 0 {
 					g.if_guard_error_cleanup(cvar_name, guard_expr_types[guard_idx])
 				}
 			}
@@ -726,7 +730,8 @@ fn (mut g Gen) if_expr(node ast.IfExpr) {
 		}
 	}
 	for i, var_name in guard_vars {
-		if var_name == '' || guard_expr_types[i] == 0 || guard_else_uses_err[i] {
+		if var_name == '' || guard_expr_types[i] == 0 || guard_else_uses_err[i]
+			|| !guard_owns_error[i] {
 			continue
 		}
 		if node.has_else && i == node.branches.len - 2 {
diff --git a/vlib/v/gen/c/str_intp.v b/vlib/v/gen/c/str_intp.v
index 9ecf8d9dc..8c04b8415 100644
--- a/vlib/v/gen/c/str_intp.v
+++ b/vlib/v/gen/c/str_intp.v
@@ -719,6 +719,12 @@ fn (mut g Gen) string_inter_literal(node ast.StringInterLiteral) {
 const simple_string_interpolation_default_precision = 987698
 
 fn (mut g Gen) gen_simple_string_inter_literal(node ast.StringInterLiteral, fmts []u8) bool {
+	if g.is_autofree || g.pref.gc_mode == .boehm_leak {
+		// The fast `string_plus_many` lowering can leave nested temporary
+		// strings without scope cleanup in autofree/leak-detection modes.
+		// Use the regular `str_intp` path there so temporaries remain explicit.
+		return false
+	}
 	if node.exprs.len == 0 || node.expr_types.len < node.exprs.len {
 		return false
 	}
diff --git a/vlib/v/gen/c/testdata/c_ident_for_ptr_arg.c.must_have b/vlib/v/gen/c/testdata/c_ident_for_ptr_arg.c.must_have
index 98e7bb1e2..2e797def0 100644
--- a/vlib/v/gen/c/testdata/c_ident_for_ptr_arg.c.must_have
+++ b/vlib/v/gen/c/testdata/c_ident_for_ptr_arg.c.must_have
@@ -1 +1 @@
-int (*real_open) (charptr , int , int ) = ((main__RealOpen)((dl__sym((voidptr)RTLD_NEXT, _S("open")))));
\ No newline at end of file
+int (*real_open) (charptr _d1, int _d2, int _d3) = ((main__RealOpen)((dl__sym(RTLD_NEXT, _S("open")))));
diff --git a/vlib/v/gen/c/testdata/dump_low_alloc.c.must_have b/vlib/v/gen/c/testdata/dump_low_alloc.c.must_have
index aa7de469f..07fca636d 100644
--- a/vlib/v/gen/c/testdata/dump_low_alloc.c.must_have
+++ b/vlib/v/gen/c/testdata/dump_low_alloc.c.must_have
@@ -1,4 +1,4 @@
-int _v_dump_expr_int(string fpath, int line, string sexpr, int dump_arg) {
+int_literal _v_dump_expr_int_literal(string fpath, int line, string sexpr, int_literal dump_arg) {
 builtin___write_buf_to_fd(2, _S("[").str, _S("[").len);
 builtin___write_buf_to_fd(2, sline.str, sline.len);
 builtin___writeln_to_fd(2, value);
diff --git a/vlib/v/gen/c/testdata/interface_auto_free.c.must_have b/vlib/v/gen/c/testdata/interface_auto_free.c.must_have
index 41d8ea445..07d0101f9 100644
--- a/vlib/v/gen/c/testdata/interface_auto_free.c.must_have
+++ b/vlib/v/gen/c/testdata/interface_auto_free.c.must_have
@@ -1,7 +1,7 @@
 void main__IFoo_free(main__IFoo* it) {
 	if (it->_typ == _main__IFoo_main__Foo_index) { main__Foo_free(it->_main__Foo); return; }
-	if (it->_typ == _main__IFoo_array_index) { array_free(it->_array); return; }
-	if (it->_typ == _main__IFoo_map_index) { map_free(it->_map); return; }
-	if (it->_typ == _main__IFoo_VAssertMetaInfo_index) { VAssertMetaInfo_free(it->_VAssertMetaInfo); return; }
-	if (it->_typ == _main__IFoo_MessageError_index) { MessageError_free(it->_MessageError); return; }
-}
\ No newline at end of file
+	if (it->_typ == _main__IFoo_array_index) { builtin__array_free(it->_array); return; }
+	if (it->_typ == _main__IFoo_map_index) { builtin__map_free(it->_map); return; }
+	if (it->_typ == _main__IFoo_MessageError_index) { builtin__MessageError_free(it->_MessageError); return; }
+	if (it->_typ == _main__IFoo_VAssertMetaInfo_index) { builtin__VAssertMetaInfo_free(it->_VAssertMetaInfo); return; }
+}
diff --git a/vlib/v/gen/c/testdata/translated_module.c.must_have b/vlib/v/gen/c/testdata/translated_module.c.must_have
index 338be64fb..27d7a053f 100644
--- a/vlib/v/gen/c/testdata/translated_module.c.must_have
+++ b/vlib/v/gen/c/testdata/translated_module.c.must_have
@@ -1,3 +1,3 @@
-i32 ExternalSymbol(char* );
+i32 ExternalSymbol(char* _d1);
 i32 a = ExternalSymbol("hello");
 extern struct my_struct my_instance;
diff --git a/vlib/v/gen/js/auto_eq_methods.v b/vlib/v/gen/js/auto_eq_methods.v
index 48b2284db..bab1c5ee5 100644
--- a/vlib/v/gen/js/auto_eq_methods.v
+++ b/vlib/v/gen/js/auto_eq_methods.v
@@ -187,7 +187,7 @@ fn (mut g JsGen) gen_array_equality_fn(left_type ast.Type) string {
 		g.definitions.writeln(fn_builder.str())
 	}
 	fn_builder.writeln('function ${ptr_styp}_arr_eq(a,b) {')
-	fn_builder.writeln('\tif (a.arr.length != b.arr.length) {')
+	fn_builder.writeln('\tif (a.len.valueOf() != b.len.valueOf()) {')
 	fn_builder.writeln('\t\treturn new bool(false);')
 	fn_builder.writeln('\t}')
 	fn_builder.writeln('\tfor (let i = 0; i < a.len; ++i) {')
@@ -293,13 +293,13 @@ fn (mut g JsGen) gen_map_equality_fn(left_type ast.Type) string {
 	}
 	fn_builder.writeln('function ${ptr_styp}_map_eq(a,b) {')
 	fn_builder.writeln('\tif (Object.keys(a.map).length != Object.keys(b.map).length) {')
-	fn_builder.writeln('\t\treturn false;')
+	fn_builder.writeln('\t\treturn new bool(false);')
 	fn_builder.writeln('\t}')
 	fn_builder.writeln('\tlet keys = Object.keys(a.map);')
 	fn_builder.writeln('\tfor (let i = 0;i < keys.length;i++) {')
 	fn_builder.writeln('\t\tlet key = keys[i]; let value = a.map[key];')
 	fn_builder.writeln('\t\tif (!(key in b.map)) { return new bool(false); }')
-	fn_builder.writeln('\t\tlet x = value; let y = b.map[key];')
+	fn_builder.writeln('\t\tlet x = value.val; let y = b.map[key].val;')
 	kind := g.table.type_kind(value.typ)
 	if kind == .string {
 		fn_builder.writeln('\t\tif (x.str != y.str) {')
diff --git a/vlib/v/gen/js/deep_copy.v b/vlib/v/gen/js/deep_copy.v
index 9e4839df4..caf1c435a 100644
--- a/vlib/v/gen/js/deep_copy.v
+++ b/vlib/v/gen/js/deep_copy.v
@@ -200,7 +200,7 @@ fn (mut g JsGen) final_gen_copy(typ StrType) {
 	}
 	match styp {
 		'byte', 'u8', 'u16', 'u32', 'u64', 'i16', 'i32', 'int', 'i64', 'isize', 'usize', 'bool',
-		'int_literal', 'float_literal', 'f32', 'f64', 'voidptr' {
+		'char', 'rune', 'int_literal', 'float_literal', 'f32', 'f64', 'voidptr' {
 			g.definitions.writeln('function ${sym.cname}_\$copy(it) { return new ${sym.cname}(it.val); }')
 			return
 		}
diff --git a/vlib/v/gen/js/js.v b/vlib/v/gen/js/js.v
index f4566ac00..e5c606ddc 100644
--- a/vlib/v/gen/js/js.v
+++ b/vlib/v/gen/js/js.v
@@ -484,8 +484,20 @@ pub fn (mut g JsGen) init() {
 	if g.pref.output_es5 {
 		g.definitions.writeln('globalThis = \$global;')
 	}
+	g.definitions.writeln('let \$ref_id_gen = 0;')
 	g.definitions.writeln('function \$ref(value) { if (value instanceof \$ref) { return value; } this.val = value; } ')
 	g.definitions.writeln('\$ref.prototype.valueOf = function() { return this.val; } ')
+	g.definitions.writeln('\$ref.prototype.\$toJS = function() {')
+	g.definitions.writeln('\tconst value = this.val;')
+	g.definitions.writeln('\tif (value === null || value === undefined) { return value; }')
+	g.definitions.writeln('\tif (typeof value === "object" || typeof value === "function") {')
+	g.definitions.writeln('\t\tif (!Object.prototype.hasOwnProperty.call(value, "__v_ref_id")) {')
+	g.definitions.writeln('\t\t\tObject.defineProperty(value, "__v_ref_id", { value: ++\$ref_id_gen, enumerable: false, configurable: false, writable: false });')
+	g.definitions.writeln('\t\t}')
+	g.definitions.writeln('\t\treturn "__v_ref_" + value.__v_ref_id;')
+	g.definitions.writeln('\t}')
+	g.definitions.writeln('\treturn value;')
+	g.definitions.writeln('} ')
 	g.definitions.writeln('function \$ref_index(value, parent, index) { let ref = new \$ref(value); ref._v_array = parent; ref._v_index = index; return ref; } ')
 	if g.pref.backend != .js_node {
 		g.definitions.writeln('const \$process = {')
@@ -1599,7 +1611,7 @@ fn (mut g JsGen) gen_assign_stmt(stmt ast.AssignStmt, semicolon bool) {
 			}
 			if left is ast.IndexExpr && left.is_map {
 				g.write(', key: ')
-				g.expr(left.index)
+				g.write_map_stored_key(left.index, left.index_type)
 				g.write(' }')
 			}
 			if semicolon {
@@ -1777,7 +1789,7 @@ fn (mut g JsGen) gen_for_in_stmt(it ast.ForInStmt) {
 		g.expr(it.cond)
 		g.write('; ${i} < ')
 		g.expr(it.high)
-		g.writeln('; ${i} = new int(${i} + 1)) {')
+		g.writeln('; ${i}.val++) {')
 		g.inside_loop = false
 		g.inc_indent()
 		g.writeln('try { ')
@@ -3205,6 +3217,19 @@ fn (mut g JsGen) expr_string(expr ast.Expr) string {
 	return g.out.cut_to(pos).trim_space()
 }
 
+fn (mut g JsGen) write_map_stored_key(expr ast.Expr, typ ast.Type) {
+	if typ == 0 || typ == ast.invalid_type {
+		g.write('v_clone_value(')
+		g.expr(expr)
+		g.write(')')
+		return
+	}
+	copy_fn := g.get_copy_fn(typ)
+	g.write('${copy_fn}(')
+	g.expr(expr)
+	g.write(')')
+}
+
 fn (mut g JsGen) should_wrap_js_selector_rvalue(expr ast.Expr, expected_type ast.Type) bool {
 	if expected_type == 0 || expected_type.is_ptr() {
 		return false
@@ -3514,7 +3539,7 @@ fn (mut g JsGen) gen_map_init_expr(it ast.MapInit) {
 			g.write(': { val: ')
 			g.expr(val)
 			g.write(', key: ')
-			g.expr(key)
+			g.write_map_stored_key(key, it.key_type)
 			g.write(' }')
 			if i < it.keys.len - 1 {
 				g.write(',')
@@ -4144,7 +4169,7 @@ fn (mut g JsGen) gen_postfix_index_expr(expr ast.IndexExpr, op token.Kind) {
 			}
 
 			g.write(', key: ')
-			g.expr(expr.index)
+			g.write_map_stored_key(expr.index, expr.index_type)
 			g.write(' }')
 		} else {
 			tmp := g.new_tmp_var()
-- 
2.39.5