Commit 2c9effc101

@@ -21697,6 +21697,9 @@ static IrInstGen *ir_analyze_struct_field_ptr(IrAnalyze *ira, IrInst* source_ins
     if (field->is_comptime) {
         IrInstGen *elem = ir_const(ira, source_instr, field_type);
         memoize_field_init_val(ira->codegen, struct_type, field);
+        if(field->init_val != nullptr && type_is_invalid(field->init_val->type)){
+            return ira->codegen->invalid_inst_gen;
+        }
         copy_const_val(ira->codegen, elem->value, field->init_val);
         return ir_get_ref2(ira, source_instr, elem, field_type, true, false);
     }
@@ -25053,6 +25056,9 @@ static Error ir_make_type_info_value(IrAnalyze *ira, IrInst* source_instr, ZigTy
                     inner_fields[3]->type = get_optional_type2(ira->codegen, struct_field->type_entry);
                     if (inner_fields[3]->type == nullptr) return ErrorSemanticAnalyzeFail;
                     memoize_field_init_val(ira->codegen, type_entry, struct_field);
+                    if(struct_field->init_val != nullptr && type_is_invalid(struct_field->init_val->type)){
+                        return ErrorSemanticAnalyzeFail;
+                    }
                     set_optional_payload(inner_fields[3], struct_field->init_val);
 
                     ZigValue *name = create_const_str_lit(ira->codegen, struct_field->name)->data.x_ptr.data.ref.pointee;

@@ -7353,4 +7353,18 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
         ":3:18: error: expected type '[*:0]const u8', found '*[64]u8'",
         ":3:18: note: destination pointer requires a terminating '0' sentinel",
     });
+
+    cases.add("issue #5221: invalid struct init type referenced by @typeInfo and passed into function",
+        \\fn ignore(comptime param: var) void {}
+        \\
+        \\export fn foo() void {
+        \\    const MyStruct = struct {
+        \\        wrong_type: []u8 = "foo",
+        \\    };
+        \\
+        \\    comptime ignore(@typeInfo(MyStruct).Struct.fields[0]);
+        \\}
+    , &[_][]const u8{
+        ":5:28: error: expected type '[]u8', found '*const [3:0]u8'",
+    });
 }