From e99730340baed0208e513a8584637de4776d2ec0 Mon Sep 17 00:00:00 2001 From: ThreeRhinosInAnElephantCostume Date: Sat, 11 Sep 2021 20:38:15 +0200 Subject: Fix error on parsing statement-less GDScript files, add an empty file warning, add relevant tests. --- modules/gdscript/gdscript_parser.cpp | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'modules/gdscript/gdscript_parser.cpp') diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp index af872e49e2..4e92d13997 100644 --- a/modules/gdscript/gdscript_parser.cpp +++ b/modules/gdscript/gdscript_parser.cpp @@ -337,12 +337,29 @@ Error GDScriptParser::parse(const String &p_source_code, const String &p_script_ tokenizer.set_cursor_position(cursor_line, cursor_column); script_path = p_script_path; current = tokenizer.scan(); - // Avoid error as the first token. - while (current.type == GDScriptTokenizer::Token::ERROR) { - push_error(current.literal); + // Avoid error or newline as the first token. + // The latter can mess with the parser when opening files filled exclusively with comments and newlines. + while (current.type == GDScriptTokenizer::Token::ERROR || current.type == GDScriptTokenizer::Token::NEWLINE) { + if (current.type == GDScriptTokenizer::Token::ERROR) { + push_error(current.literal); + } current = tokenizer.scan(); } +#ifdef DEBUG_ENABLED + // Warn about parsing an empty script file: + if (current.type == GDScriptTokenizer::Token::TK_EOF) { + // Create a dummy Node for the warning, pointing to the very beginning of the file + Node *nd = alloc_node(); + nd->start_line = 1; + nd->start_column = 0; + nd->end_line = 1; + nd->leftmost_column = 0; + nd->rightmost_column = 0; + push_warning(nd, GDScriptWarning::EMPTY_FILE); + } +#endif + push_multiline(false); // Keep one for the whole parsing. parse_program(); pop_multiline(); -- cgit v1.2.3