From fd07f7df6924d4f2ab41c55be7284359eb1cb4f4 Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Sat, 14 Jan 2023 06:41:31 +0800
Subject: [PATCH] cgen: fix printing struct having fields of arrays of
 anonymous structs (#16953)

---
 .../checker/tests/comptime_dump_fields_var_test.out |  4 ++--
 vlib/v/gen/c/auto_str_methods.v                     |  2 +-
 ...ting_struct_with_arrays_of_anon_struct_field.out |  5 +++++
 ...nting_struct_with_arrays_of_anon_struct_field.vv | 13 +++++++++++++
 4 files changed, 21 insertions(+), 3 deletions(-)
 create mode 100644 vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.out
 create mode 100644 vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.vv

diff --git a/vlib/v/checker/tests/comptime_dump_fields_var_test.out b/vlib/v/checker/tests/comptime_dump_fields_var_test.out
index ce67fd3b2..ce59179bc 100644
--- a/vlib/v/checker/tests/comptime_dump_fields_var_test.out
+++ b/vlib/v/checker/tests/comptime_dump_fields_var_test.out
@@ -2,7 +2,7 @@
 [vlib/v/checker/tests/comptime_dump_fields_var_test.vv:13] val.$field.name: d
 [vlib/v/checker/tests/comptime_dump_fields_var_test.vv:13] val.$field.name: 1
 [vlib/v/checker/tests/comptime_dump_fields_var_test.vv:13] val.$field.name: 0
-[vlib/v/checker/tests/comptime_dump_fields_var_test.vv:13] val.$field.name: _VAnonStruct1{
+[vlib/v/checker/tests/comptime_dump_fields_var_test.vv:13] val.$field.name: struct {
     i: 100
 }
-ok
\ No newline at end of file
+ok
diff --git a/vlib/v/gen/c/auto_str_methods.v b/vlib/v/gen/c/auto_str_methods.v
index d336ee6c9..41031be22 100644
--- a/vlib/v/gen/c/auto_str_methods.v
+++ b/vlib/v/gen/c/auto_str_methods.v
@@ -829,7 +829,7 @@ fn (mut g Gen) gen_str_for_struct(info ast.Struct, styp string, typ_str string,
 		g.auto_fn_definitions << fn_builder.str()
 	}
 	fn_builder.writeln('static string indent_${str_fn_name}(${styp} it, int indent_count) {')
-	clean_struct_v_type_name := util.strip_main_name(typ_str)
+	clean_struct_v_type_name := if info.is_anon { 'struct ' } else { util.strip_main_name(typ_str) }
 	// generate ident / indent length = 4 spaces
 	if info.fields.len == 0 {
 		fn_builder.writeln('\treturn _SLIT("${clean_struct_v_type_name}{}");')
diff --git a/vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.out b/vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.out
new file mode 100644
index 000000000..c9a430d5d
--- /dev/null
+++ b/vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.out
@@ -0,0 +1,5 @@
+Abc{
+    a: [struct {
+        b: 'this is b'
+    }]
+}
diff --git a/vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.vv b/vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.vv
new file mode 100644
index 000000000..fa2b7d494
--- /dev/null
+++ b/vlib/v/slow_tests/inout/printing_struct_with_arrays_of_anon_struct_field.vv
@@ -0,0 +1,13 @@
+struct Abc {
+	a []struct {
+		b string
+	}
+}
+
+fn main() {
+	abc := Abc{
+		a: [struct {'this is b'}]
+	}
+
+	println(abc)
+}
-- 
2.39.5