Sara/behaviour-tree-test
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Add a const call mode to Object, Variant and Script.

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For this to work safely (user not call queue_free or something in the expression), a const call mode was added to Object and Variant (and optionally Script).

This mode ensures only const functions can be called, making it safe to use from the editor.

Co-Authored-By: reduz <reduzio@gmail.com>
This commit is contained in:
K. S. Ernest (iFire) Lee 2022-06-27 13:10:04 -07:00
parent c41e4b10c3
commit 9ddebc0c22
23 changed files with 179 additions and 53 deletions
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3
modules/gdscript/gdscript_analyzer.cpp
View file

@ -2278,6 +2278,7 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a
push_error(vformat(R"(Too few arguments for %s constructor. Received %d but expected %d.)", Variant::get_type_name(builtin_type), p_call->arguments.size(), err.expected), p_call);
break;
case Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL:
case Callable::CallError::CALL_ERROR_METHOD_NOT_CONST:
break; // Can't happen in a builtin constructor.
case Callable::CallError::CALL_OK:
p_call->is_constant = true;
@ -2380,6 +2381,7 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a
case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
push_error(vformat(R"*(Too few arguments for "%s()" call. Expected at least %d but received %d.)*", function_name, err.expected, p_call->arguments.size()), p_call);
break;
case Callable::CallError::CALL_ERROR_METHOD_NOT_CONST:
case Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL:
break; // Can't happen in a builtin constructor.
case Callable::CallError::CALL_OK:
@ -2422,6 +2424,7 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a
case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
push_error(vformat(R"*(Too few arguments for "%s()" call. Expected at least %d but received %d.)*", function_name, err.expected, p_call->arguments.size()), p_call);
break;
case Callable::CallError::CALL_ERROR_METHOD_NOT_CONST:
case Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL:
break; // Can't happen in a builtin constructor.
case Callable::CallError::CALL_OK:

2
modules/gdscript/gdscript_vm.cpp
View file

@ -177,6 +177,8 @@ String GDScriptFunction::_get_call_error(const Callable::CallError &p_err, const
err_text = "Invalid call. Nonexistent " + p_where + ".";
} else if (p_err.error == Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL) {
err_text = "Attempt to call " + p_where + " on a null instance.";
} else if (p_err.error == Callable::CallError::CALL_ERROR_METHOD_NOT_CONST) {
err_text = "Attempt to call " + p_where + " on a const instance.";
} else {
err_text = "Bug, call error: #" + itos(p_err.error);
}