From 7d4fc79eb359263ea4239dd7cd02ab07f90971a5 Mon Sep 17 00:00:00 2001 From: George Marques Date: Thu, 9 Jan 2020 08:30:14 -0300 Subject: [PATCH] Add GDScript warning for standalone expression This makes the error message clearer as it might be used to call functions with side effects. --- modules/gdscript/gdscript.cpp | 4 ++++ modules/gdscript/gdscript.h | 1 + modules/gdscript/gdscript_parser.cpp | 6 +++++- 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/modules/gdscript/gdscript.cpp b/modules/gdscript/gdscript.cpp index 5b0210b16dc..8abf2ee7caf 100644 --- a/modules/gdscript/gdscript.cpp +++ b/modules/gdscript/gdscript.cpp @@ -2051,6 +2051,9 @@ String GDScriptWarning::get_message() const { CHECK_SYMBOLS(2); return "The '" + symbols[0] + "' keyword is deprecated and will be removed in a future release, please replace its uses by '" + symbols[1] + "'."; } break; + case STANDALONE_TERNARY: { + return "Standalone ternary conditional operator: the return value is being discarded."; + } case WARNING_MAX: break; // Can't happen, but silences warning } ERR_FAIL_V_MSG(String(), "Invalid GDScript warning code: " + get_name_from_code(code) + "."); @@ -2092,6 +2095,7 @@ String GDScriptWarning::get_name_from_code(Code p_code) { "UNSAFE_CAST", "UNSAFE_CALL_ARGUMENT", "DEPRECATED_KEYWORD", + "STANDALONE_TERNARY", NULL }; diff --git a/modules/gdscript/gdscript.h b/modules/gdscript/gdscript.h index cc25c1c313d..72389cdddcb 100644 --- a/modules/gdscript/gdscript.h +++ b/modules/gdscript/gdscript.h @@ -297,6 +297,7 @@ struct GDScriptWarning { UNSAFE_CAST, // Cast used in an unknown type UNSAFE_CALL_ARGUMENT, // Function call argument is of a supertype of the require argument DEPRECATED_KEYWORD, // The keyword is deprecated and should be replaced + STANDALONE_TERNARY, // Return value of ternary expression is discarded WARNING_MAX, } code; Vector symbols; diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp index fc35678e657..54e6f43917d 100644 --- a/modules/gdscript/gdscript_parser.cpp +++ b/modules/gdscript/gdscript_parser.cpp @@ -8274,7 +8274,11 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { _mark_line_as_safe(op->line); _reduce_node_type(op); // Test for safety anyway #ifdef DEBUG_ENABLED - _add_warning(GDScriptWarning::STANDALONE_EXPRESSION, statement->line); + if (op->op == OperatorNode::OP_TERNARY_IF) { + _add_warning(GDScriptWarning::STANDALONE_TERNARY, statement->line); + } else { + _add_warning(GDScriptWarning::STANDALONE_EXPRESSION, statement->line); + } #endif // DEBUG_ENABLED } }