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Keep GDScript functions in stack while yielding

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This prevents GDScript functions from leaving the stack too soon when
they are resuming from yield, allowing the ones expecting it to finish
to know the caller.

Helps debugging cases when you use:
`yield(function_which_yields(), "completed")`
since now it shows the call that resumed that function.
This commit is contained in:
George Marques 2019-05-10 16:38:48 -03:00
parent bdf79f4c6e
commit bdc6649b79
No known key found for this signature in database
GPG Key ID: 046BD46A3201E43D
1 changed files with 39 additions and 6 deletions
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45
modules/gdscript/gdscript_function.cpp
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@ -1583,15 +1583,26 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
GDScriptLanguage::get_singleton()->script_frame_time += time_taken - function_call_time;
}
if (ScriptDebugger::get_singleton())
GDScriptLanguage::get_singleton()->exit_function();
bool yielded = retvalue.is_ref() && Object::cast_to<GDScriptFunctionState>(retvalue);
// Check if this is the last time the function is resuming from yield
// Will be true if never yielded as well
// When it's the last resume it will postpone the exit from stack,
// so the debugger knows which function triggered the resume of the next function (if any)
if (!p_state || yielded) {
if (ScriptDebugger::get_singleton())
GDScriptLanguage::get_singleton()->exit_function();
#endif
if (_stack_size) {
//free stack
for (int i = 0; i < _stack_size; i++)
stack[i].~Variant();
if (_stack_size) {
//free stack
for (int i = 0; i < _stack_size; i++)
stack[i].~Variant();
}
#ifdef DEBUG_ENABLED
}
#endif
return retvalue;
}
@ -1830,6 +1841,17 @@ Variant GDScriptFunctionState::_signal_callback(const Variant **p_args, int p_ar
}
}
#ifdef DEBUG_ENABLED
if (ScriptDebugger::get_singleton())
GDScriptLanguage::get_singleton()->exit_function();
if (state.stack_size) {
//free stack
Variant *stack = (Variant *)state.stack.ptr();
for (int i = 0; i < state.stack_size; i++)
stack[i].~Variant();
}
#endif
return ret;
}
@ -1884,6 +1906,17 @@ Variant GDScriptFunctionState::resume(const Variant &p_arg) {
} else {
emit_signal("completed", ret);
}
#ifdef DEBUG_ENABLED
if (ScriptDebugger::get_singleton())
GDScriptLanguage::get_singleton()->exit_function();
if (state.stack_size) {
//free stack
Variant *stack = (Variant *)state.stack.ptr();
for (int i = 0; i < state.stack_size; i++)
stack[i].~Variant();
}
#endif
}
return ret;