godot/modules/gdscript/gdscript_cache.cpp

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

448 lines
13 KiB
C++
Raw Normal View History

2020-06-10 21:15:09 +00:00
/**************************************************************************/
/* gdscript_cache.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_cache.h"
#include "gdscript.h"
#include "gdscript_analyzer.h"
2022-11-08 11:51:20 +00:00
#include "gdscript_compiler.h"
2020-06-10 21:15:09 +00:00
#include "gdscript_parser.h"
#include "core/io/file_access.h"
#include "core/templates/vector.h"
2020-06-10 21:15:09 +00:00
GDScriptParserRef::Status GDScriptParserRef::get_status() const {
return status;
}
uint32_t GDScriptParserRef::get_source_hash() const {
return source_hash;
}
GDScriptParser *GDScriptParserRef::get_parser() {
if (parser == nullptr) {
parser = memnew(GDScriptParser);
}
2020-06-10 21:15:09 +00:00
return parser;
}
GDScriptAnalyzer *GDScriptParserRef::get_analyzer() {
if (analyzer == nullptr) {
analyzer = memnew(GDScriptAnalyzer(get_parser()));
}
return analyzer;
}
2020-06-10 21:15:09 +00:00
Error GDScriptParserRef::raise_status(Status p_new_status) {
ERR_FAIL_COND_V(clearing, ERR_BUG);
ERR_FAIL_COND_V(parser == nullptr && status != EMPTY, ERR_BUG);
2020-06-10 21:15:09 +00:00
while (result == OK && p_new_status > status) {
2020-06-10 21:15:09 +00:00
switch (status) {
case EMPTY: {
// Calling parse will clear the parser, which can destruct another GDScriptParserRef which can clear the last reference to the script with this path, calling remove_script, which clears this GDScriptParserRef.
// It's ok if its the first thing done here.
get_parser()->clear();
2020-06-10 21:15:09 +00:00
status = PARSED;
String remapped_path = ResourceLoader::path_remap(path);
if (remapped_path.get_extension().to_lower() == "gdc") {
Vector<uint8_t> tokens = GDScriptCache::get_binary_tokens(remapped_path);
source_hash = hash_djb2_buffer(tokens.ptr(), tokens.size());
result = get_parser()->parse_binary(tokens, path);
} else {
String source = GDScriptCache::get_source_code(remapped_path);
source_hash = source.hash();
result = get_parser()->parse(source, path, false);
}
} break;
2020-06-10 21:15:09 +00:00
case PARSED: {
status = INHERITANCE_SOLVED;
result = get_analyzer()->resolve_inheritance();
2020-06-10 21:15:09 +00:00
} break;
case INHERITANCE_SOLVED: {
status = INTERFACE_SOLVED;
result = get_analyzer()->resolve_interface();
2020-06-10 21:15:09 +00:00
} break;
case INTERFACE_SOLVED: {
status = BODY_SOLVED;
result = get_analyzer()->resolve_body();
} break;
case BODY_SOLVED: {
2020-06-10 21:15:09 +00:00
status = FULLY_SOLVED;
result = get_analyzer()->resolve_dependencies();
2020-06-10 21:15:09 +00:00
} break;
case FULLY_SOLVED: {
return result;
}
}
}
return result;
}
2022-10-09 16:41:28 +00:00
void GDScriptParserRef::clear() {
if (clearing) {
2022-10-09 16:41:28 +00:00
return;
}
clearing = true;
GDScriptParser *lparser = parser;
GDScriptAnalyzer *lanalyzer = analyzer;
2022-10-09 16:41:28 +00:00
parser = nullptr;
analyzer = nullptr;
status = EMPTY;
result = OK;
source_hash = 0;
clearing = false;
if (lanalyzer != nullptr) {
memdelete(lanalyzer);
2020-06-10 21:15:09 +00:00
}
2022-10-09 16:41:28 +00:00
if (lparser != nullptr) {
memdelete(lparser);
2020-06-10 21:15:09 +00:00
}
2022-10-09 16:41:28 +00:00
}
GDScriptParserRef::~GDScriptParserRef() {
clear();
MutexLock lock(GDScriptCache::singleton->mutex);
2020-06-10 21:15:09 +00:00
GDScriptCache::singleton->parser_map.erase(path);
}
GDScriptCache *GDScriptCache::singleton = nullptr;
2022-10-09 16:41:28 +00:00
void GDScriptCache::move_script(const String &p_from, const String &p_to) {
if (singleton == nullptr || p_from == p_to) {
2022-10-09 16:41:28 +00:00
return;
}
MutexLock lock(singleton->mutex);
if (singleton->cleared) {
return;
}
2022-10-09 16:41:28 +00:00
if (singleton->parser_map.has(p_from) && !p_from.is_empty()) {
singleton->parser_map[p_to] = singleton->parser_map[p_from];
}
singleton->parser_map.erase(p_from);
if (singleton->shallow_gdscript_cache.has(p_from) && !p_from.is_empty()) {
singleton->shallow_gdscript_cache[p_to] = singleton->shallow_gdscript_cache[p_from];
}
singleton->shallow_gdscript_cache.erase(p_from);
if (singleton->full_gdscript_cache.has(p_from) && !p_from.is_empty()) {
singleton->full_gdscript_cache[p_to] = singleton->full_gdscript_cache[p_from];
}
singleton->full_gdscript_cache.erase(p_from);
}
2020-06-10 21:15:09 +00:00
void GDScriptCache::remove_script(const String &p_path) {
2022-10-09 16:41:28 +00:00
if (singleton == nullptr) {
return;
}
MutexLock lock(singleton->mutex);
if (singleton->cleared) {
return;
}
2022-10-09 16:41:28 +00:00
if (singleton->parser_map.has(p_path)) {
// Keep a local reference until it goes out of scope.
// Clearing it can trigger a reference to itself to go out of scope, destructing it before clear finishes.
Ref<GDScriptParserRef> parser_ref = singleton->parser_map[p_path];
2022-10-09 16:41:28 +00:00
singleton->parser_map.erase(p_path);
parser_ref->clear();
2022-10-09 16:41:28 +00:00
}
singleton->dependencies.erase(p_path);
2020-06-10 21:15:09 +00:00
singleton->shallow_gdscript_cache.erase(p_path);
singleton->full_gdscript_cache.erase(p_path);
}
Ref<GDScriptParserRef> GDScriptCache::get_parser(const String &p_path, GDScriptParserRef::Status p_status, Error &r_error, const String &p_owner) {
2022-10-09 16:41:28 +00:00
MutexLock lock(singleton->mutex);
2020-06-10 21:15:09 +00:00
Ref<GDScriptParserRef> ref;
if (!p_owner.is_empty()) {
singleton->dependencies[p_owner].insert(p_path);
}
2020-06-10 21:15:09 +00:00
if (singleton->parser_map.has(p_path)) {
ref = Ref<GDScriptParserRef>(singleton->parser_map[p_path]);
2021-11-01 07:35:05 +00:00
if (ref.is_null()) {
r_error = ERR_INVALID_DATA;
return ref;
}
2020-06-10 21:15:09 +00:00
} else {
String remapped_path = ResourceLoader::path_remap(p_path);
if (!FileAccess::exists(remapped_path)) {
r_error = ERR_FILE_NOT_FOUND;
return ref;
}
ref.instantiate();
2020-06-10 21:15:09 +00:00
ref->path = p_path;
singleton->parser_map[p_path] = ref.ptr();
2020-06-10 21:15:09 +00:00
}
r_error = ref->raise_status(p_status);
return ref;
}
bool GDScriptCache::has_parser(const String &p_path) {
MutexLock lock(singleton->mutex);
return singleton->parser_map.has(p_path);
}
void GDScriptCache::remove_parser(const String &p_path) {
MutexLock lock(singleton->mutex);
// Can't clear the parser because some other parser might be currently using it in the chain of calls.
singleton->parser_map.erase(p_path);
}
2020-06-10 21:15:09 +00:00
String GDScriptCache::get_source_code(const String &p_path) {
Vector<uint8_t> source_file;
Error err;
Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ, &err);
ERR_FAIL_COND_V(err, "");
2020-06-10 21:15:09 +00:00
2021-05-25 06:58:49 +00:00
uint64_t len = f->get_length();
2020-06-10 21:15:09 +00:00
source_file.resize(len + 1);
uint64_t r = f->get_buffer(source_file.ptrw(), len);
2020-06-10 21:15:09 +00:00
ERR_FAIL_COND_V(r != len, "");
source_file.write[len] = 0;
String source;
if (source.parse_utf8((const char *)source_file.ptr()) != OK) {
2020-06-10 21:15:09 +00:00
ERR_FAIL_V_MSG("", "Script '" + p_path + "' contains invalid unicode (UTF-8), so it was not loaded. Please ensure that scripts are saved in valid UTF-8 unicode.");
}
return source;
}
Vector<uint8_t> GDScriptCache::get_binary_tokens(const String &p_path) {
Vector<uint8_t> buffer;
Error err = OK;
Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ, &err);
ERR_FAIL_COND_V_MSG(err != OK, buffer, "Failed to open binary GDScript file '" + p_path + "'.");
uint64_t len = f->get_length();
buffer.resize(len);
uint64_t read = f->get_buffer(buffer.ptrw(), buffer.size());
ERR_FAIL_COND_V_MSG(read != len, Vector<uint8_t>(), "Failed to read binary GDScript file '" + p_path + "'.");
return buffer;
}
2022-11-08 11:51:20 +00:00
Ref<GDScript> GDScriptCache::get_shallow_script(const String &p_path, Error &r_error, const String &p_owner) {
2022-10-09 16:41:28 +00:00
MutexLock lock(singleton->mutex);
if (!p_owner.is_empty()) {
2020-06-10 21:15:09 +00:00
singleton->dependencies[p_owner].insert(p_path);
}
if (singleton->full_gdscript_cache.has(p_path)) {
return singleton->full_gdscript_cache[p_path];
}
if (singleton->shallow_gdscript_cache.has(p_path)) {
return singleton->shallow_gdscript_cache[p_path];
}
String remapped_path = ResourceLoader::path_remap(p_path);
2020-06-10 21:15:09 +00:00
Ref<GDScript> script;
script.instantiate();
script->set_path(p_path, true);
if (remapped_path.get_extension().to_lower() == "gdc") {
Vector<uint8_t> buffer = get_binary_tokens(remapped_path);
if (buffer.is_empty()) {
r_error = ERR_FILE_CANT_READ;
}
script->set_binary_tokens_source(buffer);
} else {
r_error = script->load_source_code(remapped_path);
}
if (r_error) {
return Ref<GDScript>(); // Returns null and does not cache when the script fails to load.
}
2022-11-20 08:17:16 +00:00
Ref<GDScriptParserRef> parser_ref = get_parser(p_path, GDScriptParserRef::PARSED, r_error);
if (r_error == OK) {
GDScriptCompiler::make_scripts(script.ptr(), parser_ref->get_parser()->get_tree(), true);
2022-11-20 08:17:16 +00:00
}
2022-10-09 16:41:28 +00:00
singleton->shallow_gdscript_cache[p_path] = script;
2020-06-10 21:15:09 +00:00
return script;
}
Ref<GDScript> GDScriptCache::get_full_script(const String &p_path, Error &r_error, const String &p_owner, bool p_update_from_disk) {
2022-10-09 16:41:28 +00:00
MutexLock lock(singleton->mutex);
2020-06-10 21:15:09 +00:00
if (!p_owner.is_empty()) {
2020-06-10 21:15:09 +00:00
singleton->dependencies[p_owner].insert(p_path);
}
Ref<GDScript> script;
2020-06-10 21:15:09 +00:00
r_error = OK;
if (singleton->full_gdscript_cache.has(p_path)) {
script = singleton->full_gdscript_cache[p_path];
if (!p_update_from_disk) {
return script;
}
2020-06-10 21:15:09 +00:00
}
if (script.is_null()) {
2022-11-08 11:51:20 +00:00
script = get_shallow_script(p_path, r_error);
// Only exit early if script failed to load, otherwise let reload report errors.
if (script.is_null()) {
2022-11-08 11:51:20 +00:00
return script;
}
}
2020-06-10 21:15:09 +00:00
2022-11-08 11:51:20 +00:00
if (p_update_from_disk) {
if (p_path.get_extension().to_lower() == "gdc") {
Vector<uint8_t> buffer = get_binary_tokens(p_path);
if (buffer.is_empty()) {
r_error = ERR_FILE_CANT_READ;
return script;
}
script->set_binary_tokens_source(buffer);
} else {
r_error = script->load_source_code(p_path);
if (r_error) {
return script;
}
}
2022-11-08 11:51:20 +00:00
}
r_error = script->reload(true);
if (r_error) {
return script;
}
2022-10-09 16:41:28 +00:00
singleton->full_gdscript_cache[p_path] = script;
singleton->shallow_gdscript_cache.erase(p_path);
2020-06-10 21:15:09 +00:00
return script;
}
2022-11-08 11:51:20 +00:00
Ref<GDScript> GDScriptCache::get_cached_script(const String &p_path) {
2022-10-09 16:41:28 +00:00
MutexLock lock(singleton->mutex);
2022-11-08 11:51:20 +00:00
if (singleton->full_gdscript_cache.has(p_path)) {
return singleton->full_gdscript_cache[p_path];
}
if (singleton->shallow_gdscript_cache.has(p_path)) {
return singleton->shallow_gdscript_cache[p_path];
}
return Ref<GDScript>();
}
2020-06-10 21:15:09 +00:00
Error GDScriptCache::finish_compiling(const String &p_owner) {
2022-10-09 16:41:28 +00:00
MutexLock lock(singleton->mutex);
2022-11-08 11:51:20 +00:00
// Mark this as compiled.
2022-11-08 11:51:20 +00:00
Ref<GDScript> script = get_cached_script(p_owner);
2022-10-09 16:41:28 +00:00
singleton->full_gdscript_cache[p_owner] = script;
singleton->shallow_gdscript_cache.erase(p_owner);
HashSet<String> depends = singleton->dependencies[p_owner];
2020-06-10 21:15:09 +00:00
Error err = OK;
for (const String &E : depends) {
2020-06-10 21:15:09 +00:00
Error this_err = OK;
// No need to save the script. We assume it's already referenced in the owner.
get_full_script(E, this_err);
2020-06-10 21:15:09 +00:00
if (this_err != OK) {
err = this_err;
}
}
singleton->dependencies.erase(p_owner);
2020-06-10 21:15:09 +00:00
return err;
}
void GDScriptCache::add_static_script(Ref<GDScript> p_script) {
ERR_FAIL_COND_MSG(p_script.is_null(), "Trying to cache empty script as static.");
ERR_FAIL_COND_MSG(!p_script->is_valid(), "Trying to cache non-compiled script as static.");
singleton->static_gdscript_cache[p_script->get_fully_qualified_name()] = p_script;
}
void GDScriptCache::remove_static_script(const String &p_fqcn) {
singleton->static_gdscript_cache.erase(p_fqcn);
}
void GDScriptCache::clear() {
if (singleton == nullptr) {
return;
}
2020-06-10 21:15:09 +00:00
MutexLock lock(singleton->mutex);
2022-10-09 16:41:28 +00:00
if (singleton->cleared) {
return;
}
singleton->cleared = true;
2022-10-09 16:41:28 +00:00
RBSet<Ref<GDScriptParserRef>> parser_map_refs;
for (KeyValue<String, GDScriptParserRef *> &E : singleton->parser_map) {
2022-10-09 16:41:28 +00:00
parser_map_refs.insert(E.value);
}
singleton->parser_map.clear();
2022-10-09 16:41:28 +00:00
for (Ref<GDScriptParserRef> &E : parser_map_refs) {
if (E.is_valid()) {
2022-10-09 16:41:28 +00:00
E->clear();
}
2022-10-09 16:41:28 +00:00
}
parser_map_refs.clear();
singleton->shallow_gdscript_cache.clear();
singleton->full_gdscript_cache.clear();
}
GDScriptCache::GDScriptCache() {
singleton = this;
}
2022-10-09 16:41:28 +00:00
GDScriptCache::~GDScriptCache() {
if (!cleared) {
clear();
}
2020-06-10 21:15:09 +00:00
singleton = nullptr;
}