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godot/modules/gdscript/editor/gdscript_docgen.cpp

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/**************************************************************************/
/* gdscript_docgen.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_docgen.h"
#include "../gdscript.h"
#include "core/config/project_settings.h"
HashMap<String, String> GDScriptDocGen::singletons;
String GDScriptDocGen::_get_script_name(const String &p_path) {
const HashMap<String, String>::ConstIterator E = singletons.find(p_path);
if (E) {
return E->value;
}
return p_path.trim_prefix("res://").quote();
}
String GDScriptDocGen::_get_class_name(const GDP::ClassNode &p_class) {
const GDP::ClassNode *curr_class = &p_class;
if (!curr_class->identifier) { // All inner classes have an identifier, so this is the outer class.
return _get_script_name(curr_class->fqcn);
}
String full_name = curr_class->identifier->name;
while (curr_class->outer) {
curr_class = curr_class->outer;
if (!curr_class->identifier) { // All inner classes have an identifier, so this is the outer class.
return vformat("%s.%s", _get_script_name(curr_class->fqcn), full_name);
}
full_name = vformat("%s.%s", curr_class->identifier->name, full_name);
}
return full_name;
}
void GDScriptDocGen::_doctype_from_gdtype(const GDType &p_gdtype, String &r_type, String &r_enum, bool p_is_return) {
if (!p_gdtype.is_hard_type()) {
r_type = "Variant";
return;
}
switch (p_gdtype.kind) {
case GDType::BUILTIN:
if (p_gdtype.builtin_type == Variant::NIL) {
r_type = p_is_return ? "void" : "null";
return;
}
if (p_gdtype.builtin_type == Variant::ARRAY && p_gdtype.has_container_element_type(0)) {
_doctype_from_gdtype(p_gdtype.get_container_element_type(0), r_type, r_enum);
if (!r_enum.is_empty()) {
r_type = "int[]";
r_enum += "[]";
return;
}
if (!r_type.is_empty() && r_type != "Variant") {
r_type += "[]";
return;
}
}
r_type = Variant::get_type_name(p_gdtype.builtin_type);
return;
case GDType::NATIVE:
if (p_gdtype.is_meta_type) {
//r_type = GDScriptNativeClass::get_class_static();
r_type = "Object"; // "GDScriptNativeClass" refers to a blank page.
return;
}
r_type = p_gdtype.native_type;
return;
case GDType::SCRIPT:
if (p_gdtype.is_meta_type) {
r_type = p_gdtype.script_type.is_valid() ? p_gdtype.script_type->get_class() : Script::get_class_static();
return;
}
if (p_gdtype.script_type.is_valid()) {
if (p_gdtype.script_type->get_global_name() != StringName()) {
r_type = p_gdtype.script_type->get_global_name();
return;
}
if (!p_gdtype.script_type->get_path().is_empty()) {
r_type = _get_script_name(p_gdtype.script_type->get_path());
return;
}
}
if (!p_gdtype.script_path.is_empty()) {
r_type = _get_script_name(p_gdtype.script_path);
return;
}
r_type = "Object";
return;
case GDType::CLASS:
if (p_gdtype.is_meta_type) {
r_type = GDScript::get_class_static();
return;
}
r_type = _get_class_name(*p_gdtype.class_type);
return;
case GDType::ENUM:
if (p_gdtype.is_meta_type) {
r_type = "Dictionary";
return;
}
r_type = "int";
r_enum = String(p_gdtype.native_type).replace("::", ".");
if (r_enum.begins_with("res://")) {
r_enum = r_enum.trim_prefix("res://");
int dot_pos = r_enum.rfind(".");
if (dot_pos >= 0) {
r_enum = r_enum.left(dot_pos).quote() + r_enum.substr(dot_pos);
}
}
return;
case GDType::VARIANT:
case GDType::RESOLVING:
case GDType::UNRESOLVED:
r_type = "Variant";
return;
}
}
String GDScriptDocGen::_docvalue_from_variant(const Variant &p_variant, int p_recursion_level) {
constexpr int MAX_RECURSION_LEVEL = 2;
switch (p_variant.get_type()) {
case Variant::STRING:
return String(p_variant).c_escape().quote();
case Variant::OBJECT:
return "<Object>";
case Variant::DICTIONARY: {
const Dictionary dict = p_variant;
if (dict.is_empty()) {
return "{}";
}
if (p_recursion_level > MAX_RECURSION_LEVEL) {
return "{...}";
}
List<Variant> keys;
dict.get_key_list(&keys);
keys.sort();
String data;
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
if (E->prev()) {
data += ", ";
}
data += _docvalue_from_variant(E->get(), p_recursion_level + 1) + ": " + _docvalue_from_variant(dict[E->get()], p_recursion_level + 1);
}
return "{" + data + "}";
} break;
case Variant::ARRAY: {
const Array array = p_variant;
String result;
if (array.get_typed_builtin() != Variant::NIL) {
result += "Array[";
Ref<Script> script = array.get_typed_script();
if (script.is_valid()) {
if (script->get_global_name() != StringName()) {
result += script->get_global_name();
} else if (!script->get_path().get_file().is_empty()) {
result += script->get_path().get_file();
} else {
result += array.get_typed_class_name();
}
} else if (array.get_typed_class_name() != StringName()) {
result += array.get_typed_class_name();
} else {
result += Variant::get_type_name((Variant::Type)array.get_typed_builtin());
}
result += "](";
}
if (array.is_empty()) {
result += "[]";
} else if (p_recursion_level > MAX_RECURSION_LEVEL) {
result += "[...]";
} else {
result += "[";
for (int i = 0; i < array.size(); i++) {
if (i > 0) {
result += ", ";
}
result += _docvalue_from_variant(array[i], p_recursion_level + 1);
}
result += "]";
}
if (array.get_typed_builtin() != Variant::NIL) {
result += ")";
}
return result;
} break;
default:
return p_variant.get_construct_string();
}
}
void GDScriptDocGen::_generate_docs(GDScript *p_script, const GDP::ClassNode *p_class) {
p_script->_clear_doc();
DocData::ClassDoc &doc = p_script->doc;
doc.is_script_doc = true;
if (p_script->local_name == StringName()) {
// This is an outer unnamed class.
doc.name = _get_script_name(p_script->get_script_path());
} else {
// This is an inner or global outer class.
doc.name = p_script->local_name;
if (p_script->_owner) {
doc.name = p_script->_owner->doc.name + "." + doc.name;
}
}
doc.script_path = p_script->get_script_path();
if (p_script->base.is_valid() && p_script->base->is_valid()) {
if (!p_script->base->doc.name.is_empty()) {
doc.inherits = p_script->base->doc.name;
} else {
doc.inherits = p_script->base->get_instance_base_type();
}
} else if (p_script->native.is_valid()) {
doc.inherits = p_script->native->get_name();
}
doc.brief_description = p_class->doc_data.brief;
doc.description = p_class->doc_data.description;
for (const Pair<String, String> &p : p_class->doc_data.tutorials) {
DocData::TutorialDoc td;
td.title = p.first;
td.link = p.second;
doc.tutorials.append(td);
}
doc.is_deprecated = p_class->doc_data.is_deprecated;
doc.deprecated_message = p_class->doc_data.deprecated_message;
doc.is_experimental = p_class->doc_data.is_experimental;
doc.experimental_message = p_class->doc_data.experimental_message;
for (const GDP::ClassNode::Member &member : p_class->members) {
switch (member.type) {
case GDP::ClassNode::Member::CLASS: {
const GDP::ClassNode *inner_class = member.m_class;
const StringName &class_name = inner_class->identifier->name;
p_script->member_lines[class_name] = inner_class->start_line;
// Recursively generate inner class docs.
// Needs inner GDScripts to exist: previously generated in GDScriptCompiler::make_scripts().
GDScriptDocGen::_generate_docs(*p_script->subclasses[class_name], inner_class);
} break;
case GDP::ClassNode::Member::CONSTANT: {
const GDP::ConstantNode *m_const = member.constant;
const StringName &const_name = member.constant->identifier->name;
p_script->member_lines[const_name] = m_const->start_line;
DocData::ConstantDoc const_doc;
const_doc.name = const_name;
const_doc.value = _docvalue_from_variant(m_const->initializer->reduced_value);
const_doc.is_value_valid = true;
const_doc.description = m_const->doc_data.description;
const_doc.is_deprecated = m_const->doc_data.is_deprecated;
const_doc.deprecated_message = m_const->doc_data.deprecated_message;
const_doc.is_experimental = m_const->doc_data.is_experimental;
const_doc.experimental_message = m_const->doc_data.experimental_message;
doc.constants.push_back(const_doc);
} break;
case GDP::ClassNode::Member::FUNCTION: {
const GDP::FunctionNode *m_func = member.function;
const StringName &func_name = m_func->identifier->name;
p_script->member_lines[func_name] = m_func->start_line;
DocData::MethodDoc method_doc;
method_doc.name = func_name;
method_doc.description = m_func->doc_data.description;
method_doc.is_deprecated = m_func->doc_data.is_deprecated;
method_doc.deprecated_message = m_func->doc_data.deprecated_message;
method_doc.is_experimental = m_func->doc_data.is_experimental;
method_doc.experimental_message = m_func->doc_data.experimental_message;
method_doc.qualifiers = m_func->is_static ? "static" : "";
if (m_func->return_type) {
// `m_func->return_type->get_datatype()` is a metatype.
_doctype_from_gdtype(m_func->get_datatype(), method_doc.return_type, method_doc.return_enum, true);
} else if (!m_func->body->has_return) {
// If no `return` statement, then return type is `void`, not `Variant`.
method_doc.return_type = "void";
} else {
method_doc.return_type = "Variant";
}
for (const GDScriptParser::ParameterNode *p : m_func->parameters) {
DocData::ArgumentDoc arg_doc;
arg_doc.name = p->identifier->name;
_doctype_from_gdtype(p->get_datatype(), arg_doc.type, arg_doc.enumeration);
if (p->initializer != nullptr) {
if (p->initializer->is_constant) {
arg_doc.default_value = _docvalue_from_variant(p->initializer->reduced_value);
} else {
arg_doc.default_value = "<unknown>";
}
}
method_doc.arguments.push_back(arg_doc);
}
doc.methods.push_back(method_doc);
} break;
case GDP::ClassNode::Member::SIGNAL: {
const GDP::SignalNode *m_signal = member.signal;
const StringName &signal_name = m_signal->identifier->name;
p_script->member_lines[signal_name] = m_signal->start_line;
DocData::MethodDoc signal_doc;
signal_doc.name = signal_name;
signal_doc.description = m_signal->doc_data.description;
signal_doc.is_deprecated = m_signal->doc_data.is_deprecated;
signal_doc.deprecated_message = m_signal->doc_data.deprecated_message;
signal_doc.is_experimental = m_signal->doc_data.is_experimental;
signal_doc.experimental_message = m_signal->doc_data.experimental_message;
for (const GDScriptParser::ParameterNode *p : m_signal->parameters) {
DocData::ArgumentDoc arg_doc;
arg_doc.name = p->identifier->name;
_doctype_from_gdtype(p->get_datatype(), arg_doc.type, arg_doc.enumeration);
signal_doc.arguments.push_back(arg_doc);
}
doc.signals.push_back(signal_doc);
} break;
case GDP::ClassNode::Member::VARIABLE: {
const GDP::VariableNode *m_var = member.variable;
const StringName &var_name = m_var->identifier->name;
p_script->member_lines[var_name] = m_var->start_line;
DocData::PropertyDoc prop_doc;
prop_doc.name = var_name;
prop_doc.description = m_var->doc_data.description;
prop_doc.is_deprecated = m_var->doc_data.is_deprecated;
prop_doc.deprecated_message = m_var->doc_data.deprecated_message;
prop_doc.is_experimental = m_var->doc_data.is_experimental;
prop_doc.experimental_message = m_var->doc_data.experimental_message;
_doctype_from_gdtype(m_var->get_datatype(), prop_doc.type, prop_doc.enumeration);
switch (m_var->property) {
case GDP::VariableNode::PROP_NONE:
break;
case GDP::VariableNode::PROP_INLINE:
if (m_var->setter != nullptr) {
prop_doc.setter = m_var->setter->identifier->name;
}
if (m_var->getter != nullptr) {
prop_doc.getter = m_var->getter->identifier->name;
}
break;
case GDP::VariableNode::PROP_SETGET:
if (m_var->setter_pointer != nullptr) {
prop_doc.setter = m_var->setter_pointer->name;
}
if (m_var->getter_pointer != nullptr) {
prop_doc.getter = m_var->getter_pointer->name;
}
break;
}
if (m_var->initializer) {
if (m_var->initializer->is_constant) {
prop_doc.default_value = _docvalue_from_variant(m_var->initializer->reduced_value);
} else {
prop_doc.default_value = "<unknown>";
}
}
prop_doc.overridden = false;
doc.properties.push_back(prop_doc);
} break;
case GDP::ClassNode::Member::ENUM: {
const GDP::EnumNode *m_enum = member.m_enum;
StringName name = m_enum->identifier->name;
p_script->member_lines[name] = m_enum->start_line;
DocData::EnumDoc enum_doc;
enum_doc.description = m_enum->doc_data.description;
enum_doc.is_deprecated = m_enum->doc_data.is_deprecated;
enum_doc.deprecated_message = m_enum->doc_data.deprecated_message;
enum_doc.is_experimental = m_enum->doc_data.is_experimental;
enum_doc.experimental_message = m_enum->doc_data.experimental_message;
doc.enums[name] = enum_doc;
for (const GDP::EnumNode::Value &val : m_enum->values) {
DocData::ConstantDoc const_doc;
const_doc.name = val.identifier->name;
const_doc.value = _docvalue_from_variant(val.value);
const_doc.is_value_valid = true;
const_doc.enumeration = name;
const_doc.description = val.doc_data.description;
const_doc.is_deprecated = val.doc_data.is_deprecated;
const_doc.deprecated_message = val.doc_data.deprecated_message;
const_doc.is_experimental = val.doc_data.is_experimental;
const_doc.experimental_message = val.doc_data.experimental_message;
doc.constants.push_back(const_doc);
}
} break;
case GDP::ClassNode::Member::ENUM_VALUE: {
const GDP::EnumNode::Value &m_enum_val = member.enum_value;
const StringName &name = m_enum_val.identifier->name;
p_script->member_lines[name] = m_enum_val.identifier->start_line;
DocData::ConstantDoc const_doc;
const_doc.name = name;
const_doc.value = _docvalue_from_variant(m_enum_val.value);
const_doc.is_value_valid = true;
const_doc.enumeration = "@unnamed_enums";
const_doc.description = m_enum_val.doc_data.description;
const_doc.is_deprecated = m_enum_val.doc_data.is_deprecated;
const_doc.deprecated_message = m_enum_val.doc_data.deprecated_message;
const_doc.is_experimental = m_enum_val.doc_data.is_experimental;
const_doc.experimental_message = m_enum_val.doc_data.experimental_message;
doc.constants.push_back(const_doc);
} break;
default:
break;
}
}
// Add doc to the outer-most class.
p_script->_add_doc(doc);
}
void GDScriptDocGen::generate_docs(GDScript *p_script, const GDP::ClassNode *p_class) {
for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : ProjectSettings::get_singleton()->get_autoload_list()) {
if (E.value.is_singleton) {
singletons[E.value.path] = E.key;
}
}
_generate_docs(p_script, p_class);
singletons.clear();
}
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