mirror of
https://github.com/godotengine/godot
synced 2024-11-05 16:53:09 +00:00
280 lines
10 KiB
C++
280 lines
10 KiB
C++
/**************************************************************************/
|
|
/* gdscript_lambda_callable.cpp */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
#include "gdscript_lambda_callable.h"
|
|
|
|
#include "gdscript.h"
|
|
|
|
#include "core/templates/hashfuncs.h"
|
|
|
|
bool GDScriptLambdaCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
|
|
// Lambda callables are only compared by reference.
|
|
return p_a == p_b;
|
|
}
|
|
|
|
bool GDScriptLambdaCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) {
|
|
// Lambda callables are only compared by reference.
|
|
return p_a < p_b;
|
|
}
|
|
|
|
bool GDScriptLambdaCallable::is_valid() const {
|
|
return CallableCustom::is_valid() && function != nullptr;
|
|
}
|
|
|
|
uint32_t GDScriptLambdaCallable::hash() const {
|
|
return h;
|
|
}
|
|
|
|
String GDScriptLambdaCallable::get_as_text() const {
|
|
if (function == nullptr) {
|
|
return "<invalid lambda>";
|
|
}
|
|
if (function->get_name() != StringName()) {
|
|
return function->get_name().operator String() + "(lambda)";
|
|
}
|
|
return "(anonymous lambda)";
|
|
}
|
|
|
|
CallableCustom::CompareEqualFunc GDScriptLambdaCallable::get_compare_equal_func() const {
|
|
return compare_equal;
|
|
}
|
|
|
|
CallableCustom::CompareLessFunc GDScriptLambdaCallable::get_compare_less_func() const {
|
|
return compare_less;
|
|
}
|
|
|
|
ObjectID GDScriptLambdaCallable::get_object() const {
|
|
return script->get_instance_id();
|
|
}
|
|
|
|
StringName GDScriptLambdaCallable::get_method() const {
|
|
return function->get_name();
|
|
}
|
|
|
|
void GDScriptLambdaCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
|
|
int captures_amount = captures.size();
|
|
|
|
if (function == nullptr) {
|
|
r_return_value = Variant();
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL;
|
|
return;
|
|
}
|
|
|
|
if (captures_amount > 0) {
|
|
Vector<const Variant *> args;
|
|
args.resize(p_argcount + captures_amount);
|
|
for (int i = 0; i < captures_amount; i++) {
|
|
args.write[i] = &captures[i];
|
|
if (captures[i].get_type() == Variant::OBJECT) {
|
|
bool was_freed = false;
|
|
captures[i].get_validated_object_with_check(was_freed);
|
|
if (was_freed) {
|
|
ERR_PRINT(vformat(R"(Lambda capture at index %d was freed. Passed "null" instead.)", i));
|
|
static Variant nil;
|
|
args.write[i] = &nil;
|
|
}
|
|
}
|
|
}
|
|
for (int i = 0; i < p_argcount; i++) {
|
|
args.write[i + captures_amount] = p_arguments[i];
|
|
}
|
|
|
|
r_return_value = function->call(nullptr, args.ptrw(), args.size(), r_call_error);
|
|
switch (r_call_error.error) {
|
|
case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT:
|
|
r_call_error.argument -= captures_amount;
|
|
#ifdef DEBUG_ENABLED
|
|
if (r_call_error.argument < 0) {
|
|
ERR_PRINT(vformat("GDScript bug (please report): Invalid value of lambda capture at index %d.", captures_amount + r_call_error.argument));
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // TODO: Add a more suitable error code.
|
|
r_call_error.argument = 0;
|
|
r_call_error.expected = 0;
|
|
}
|
|
#endif
|
|
break;
|
|
case Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS:
|
|
case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
|
|
r_call_error.expected -= captures_amount;
|
|
#ifdef DEBUG_ENABLED
|
|
if (r_call_error.expected < 0) {
|
|
ERR_PRINT("GDScript bug (please report): Invalid lambda captures count.");
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // TODO: Add a more suitable error code.
|
|
r_call_error.argument = 0;
|
|
r_call_error.expected = 0;
|
|
}
|
|
#endif
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
r_return_value = function->call(nullptr, p_arguments, p_argcount, r_call_error);
|
|
}
|
|
}
|
|
|
|
GDScriptLambdaCallable::GDScriptLambdaCallable(Ref<GDScript> p_script, GDScriptFunction *p_function, const Vector<Variant> &p_captures) :
|
|
function(p_function) {
|
|
ERR_FAIL_NULL(p_script.ptr());
|
|
ERR_FAIL_NULL(p_function);
|
|
script = p_script;
|
|
captures = p_captures;
|
|
|
|
h = (uint32_t)hash_murmur3_one_64((uint64_t)this);
|
|
}
|
|
|
|
bool GDScriptLambdaSelfCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
|
|
// Lambda callables are only compared by reference.
|
|
return p_a == p_b;
|
|
}
|
|
|
|
bool GDScriptLambdaSelfCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) {
|
|
// Lambda callables are only compared by reference.
|
|
return p_a < p_b;
|
|
}
|
|
|
|
bool GDScriptLambdaSelfCallable::is_valid() const {
|
|
return CallableCustom::is_valid() && function != nullptr;
|
|
}
|
|
|
|
uint32_t GDScriptLambdaSelfCallable::hash() const {
|
|
return h;
|
|
}
|
|
|
|
String GDScriptLambdaSelfCallable::get_as_text() const {
|
|
if (function == nullptr) {
|
|
return "<invalid lambda>";
|
|
}
|
|
if (function->get_name() != StringName()) {
|
|
return function->get_name().operator String() + "(lambda)";
|
|
}
|
|
return "(anonymous lambda)";
|
|
}
|
|
|
|
CallableCustom::CompareEqualFunc GDScriptLambdaSelfCallable::get_compare_equal_func() const {
|
|
return compare_equal;
|
|
}
|
|
|
|
CallableCustom::CompareLessFunc GDScriptLambdaSelfCallable::get_compare_less_func() const {
|
|
return compare_less;
|
|
}
|
|
|
|
ObjectID GDScriptLambdaSelfCallable::get_object() const {
|
|
return object->get_instance_id();
|
|
}
|
|
|
|
void GDScriptLambdaSelfCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
|
|
#ifdef DEBUG_ENABLED
|
|
if (object->get_script_instance() == nullptr || object->get_script_instance()->get_language() != GDScriptLanguage::get_singleton()) {
|
|
ERR_PRINT("Trying to call a lambda with an invalid instance.");
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL;
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
int captures_amount = captures.size();
|
|
|
|
if (function == nullptr) {
|
|
r_return_value = Variant();
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL;
|
|
return;
|
|
}
|
|
|
|
if (captures_amount > 0) {
|
|
Vector<const Variant *> args;
|
|
args.resize(p_argcount + captures_amount);
|
|
for (int i = 0; i < captures_amount; i++) {
|
|
args.write[i] = &captures[i];
|
|
if (captures[i].get_type() == Variant::OBJECT) {
|
|
bool was_freed = false;
|
|
captures[i].get_validated_object_with_check(was_freed);
|
|
if (was_freed) {
|
|
ERR_PRINT(vformat(R"(Lambda capture at index %d was freed. Passed "null" instead.)", i));
|
|
static Variant nil;
|
|
args.write[i] = &nil;
|
|
}
|
|
}
|
|
}
|
|
for (int i = 0; i < p_argcount; i++) {
|
|
args.write[i + captures_amount] = p_arguments[i];
|
|
}
|
|
|
|
r_return_value = function->call(static_cast<GDScriptInstance *>(object->get_script_instance()), args.ptrw(), args.size(), r_call_error);
|
|
switch (r_call_error.error) {
|
|
case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT:
|
|
r_call_error.argument -= captures_amount;
|
|
#ifdef DEBUG_ENABLED
|
|
if (r_call_error.argument < 0) {
|
|
ERR_PRINT(vformat("GDScript bug (please report): Invalid value of lambda capture at index %d.", captures_amount + r_call_error.argument));
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // TODO: Add a more suitable error code.
|
|
r_call_error.argument = 0;
|
|
r_call_error.expected = 0;
|
|
}
|
|
#endif
|
|
break;
|
|
case Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS:
|
|
case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
|
|
r_call_error.expected -= captures_amount;
|
|
#ifdef DEBUG_ENABLED
|
|
if (r_call_error.expected < 0) {
|
|
ERR_PRINT("GDScript bug (please report): Invalid lambda captures count.");
|
|
r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // TODO: Add a more suitable error code.
|
|
r_call_error.argument = 0;
|
|
r_call_error.expected = 0;
|
|
}
|
|
#endif
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
r_return_value = function->call(static_cast<GDScriptInstance *>(object->get_script_instance()), p_arguments, p_argcount, r_call_error);
|
|
}
|
|
}
|
|
|
|
GDScriptLambdaSelfCallable::GDScriptLambdaSelfCallable(Ref<RefCounted> p_self, GDScriptFunction *p_function, const Vector<Variant> &p_captures) :
|
|
function(p_function) {
|
|
ERR_FAIL_NULL(p_self.ptr());
|
|
ERR_FAIL_NULL(p_function);
|
|
reference = p_self;
|
|
object = p_self.ptr();
|
|
captures = p_captures;
|
|
|
|
h = (uint32_t)hash_murmur3_one_64((uint64_t)this);
|
|
}
|
|
|
|
GDScriptLambdaSelfCallable::GDScriptLambdaSelfCallable(Object *p_self, GDScriptFunction *p_function, const Vector<Variant> &p_captures) :
|
|
function(p_function) {
|
|
ERR_FAIL_NULL(p_self);
|
|
ERR_FAIL_NULL(p_function);
|
|
object = p_self;
|
|
captures = p_captures;
|
|
|
|
h = (uint32_t)hash_murmur3_one_64((uint64_t)this);
|
|
}
|