Add support for raw json fields in structs

compiler/jsgen.v

@@ -85,14 +85,23 @@ string res = tos2("");
 		if field.attr == 'skip' {
 			continue
 		}
+		
 		field_type := p.table.find_type(field.typ)
+		name := field.name
+		_typ := field.typ.replace('*', '')
+
+		enc_name := js_enc_name(_typ)
+
+		if field.attr == 'raw' {
+			dec += ' /*prim*/ res->$name = tos2(cJSON_PrintUnformatted(js_get(root, "$field.name")));\n'
+			
+		} else {
 			// Now generate decoders for all field types in this struct
 			// need to do it here so that these functions are generated first
 			p.gen_json_for_type(field_type)
-		name := field.name
-		_typ := field.typ.replace('*', '')
-		enc_name := js_enc_name(_typ)
+	
 			dec_name := js_dec_name(_typ)
+
 			if is_js_prim(_typ) {
 				dec += ' /*prim*/ res->$name = $dec_name(js_get(root, "$field.name"))'
 				// dec += '.data'
@@ -101,6 +110,8 @@ string res = tos2("");
 				dec += ' /*!!*/ $dec_name(js_get(root, "$field.name"), & (res->$name))'
 			}
 			dec += ';\n'
+		}
+
 		enc += '  cJSON_AddItemToObject(o,  "$name", $enc_name(val.$name)); \n'
 	}
 	// cJSON_delete

compiler/parser.v

@@ -645,6 +645,9 @@ fn (p mut Parser) struct_decl() {
 			attr = p.check_name()
 			p.check(.rsbr)
 		}
+		if attr == 'raw' && field_type != 'string' {
+			p.error('struct field with attribute "raw" should be of type "string" but got "$field_type"')
+		}
 		did_gen_something = true
 
 		typ.add_field(field_name, field_type, is_mut, attr, access_mod)