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bindings_generator.cpp
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/*************************************************************************/
/* bindings_generator.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "bindings_generator.h"
#if defined(DEBUG_METHODS_ENABLED) && defined(TOOLS_ENABLED)
#include "core/config/engine.h"
#include "core/core_constants.h"
#include "core/io/compression.h"
#include "core/io/dir_access.h"
#include "core/io/file_access.h"
#include "core/os/os.h"
#include "core/string/ucaps.h"
#include "main/main.h"
#include "../glue/cs_glue_version.gen.h"
#include "../godotsharp_defs.h"
#include "../mono_gd/gd_mono_marshal.h"
#include "../utils/path_utils.h"
#include "../utils/string_utils.h"
#define CS_INDENT " " // 4 whitespaces
#define INDENT1 CS_INDENT
#define INDENT2 INDENT1 INDENT1
#define INDENT3 INDENT2 INDENT1
#define INDENT4 INDENT3 INDENT1
#define INDENT5 INDENT4 INDENT1
#define MEMBER_BEGIN "\n" INDENT2
#define OPEN_BLOCK "{\n"
#define CLOSE_BLOCK "}\n"
#define OPEN_BLOCK_L2 INDENT2 OPEN_BLOCK INDENT3
#define OPEN_BLOCK_L3 INDENT3 OPEN_BLOCK INDENT4
#define CLOSE_BLOCK_L2 INDENT2 CLOSE_BLOCK
#define CLOSE_BLOCK_L3 INDENT3 CLOSE_BLOCK
#define CS_FIELD_MEMORYOWN "memoryOwn"
#define CS_PARAM_METHODBIND "method"
#define CS_PARAM_INSTANCE "ptr"
#define CS_SMETHOD_GETINSTANCE "GetPtr"
#define CS_METHOD_CALL "Call"
#define GLUE_HEADER_FILE "glue_header.h"
#define ICALL_PREFIX "godot_icall_"
#define SINGLETON_ICALL_SUFFIX "_get_singleton"
#define ICALL_GET_METHODBIND "__ClassDB_get_method"
#define C_LOCAL_RET "ret"
#define C_LOCAL_VARARG_RET "vararg_ret"
#define C_LOCAL_PTRCALL_ARGS "call_args"
#define C_MACRO_OBJECT_CONSTRUCT "GODOTSHARP_INSTANCE_OBJECT"
#define C_NS_MONOUTILS "GDMonoUtils"
#define C_NS_MONOINTERNALS "GDMonoInternals"
#define C_METHOD_TIE_MANAGED_TO_UNMANAGED C_NS_MONOINTERNALS "::tie_managed_to_unmanaged"
#define C_METHOD_UNMANAGED_GET_MANAGED C_NS_MONOUTILS "::unmanaged_get_managed"
#define C_NS_MONOMARSHAL "GDMonoMarshal"
#define C_METHOD_MANAGED_TO_VARIANT C_NS_MONOMARSHAL "::mono_object_to_variant"
#define C_METHOD_MANAGED_FROM_VARIANT C_NS_MONOMARSHAL "::variant_to_mono_object"
#define C_METHOD_MONOSTR_TO_GODOT C_NS_MONOMARSHAL "::mono_string_to_godot"
#define C_METHOD_MONOSTR_FROM_GODOT C_NS_MONOMARSHAL "::mono_string_from_godot"
#define C_METHOD_MONOARRAY_TO(m_type) C_NS_MONOMARSHAL "::mono_array_to_" #m_type
#define C_METHOD_MONOARRAY_FROM(m_type) C_NS_MONOMARSHAL "::" #m_type "_to_mono_array"
#define C_METHOD_MANAGED_TO_CALLABLE C_NS_MONOMARSHAL "::managed_to_callable"
#define C_METHOD_MANAGED_FROM_CALLABLE C_NS_MONOMARSHAL "::callable_to_managed"
#define C_METHOD_MANAGED_TO_SIGNAL C_NS_MONOMARSHAL "::signal_info_to_callable"
#define C_METHOD_MANAGED_FROM_SIGNAL C_NS_MONOMARSHAL "::callable_to_signal_info"
#define BINDINGS_GENERATOR_VERSION UINT32_C(13)
// Types that will be ignored by the generator and won't be available in C#.
const Vector<String> ignored_types = { "PhysicsServer3DExtension" };
const char *BindingsGenerator::TypeInterface::DEFAULT_VARARG_C_IN("\t%0 %1_in = %1;\n");
static String fix_doc_description(const String &p_bbcode) {
// This seems to be the correct way to do this. It's the same EditorHelp does.
return p_bbcode.dedent()
.replace("\t", "")
.replace("\r", "")
.strip_edges();
}
static String snake_to_pascal_case(const String &p_identifier, bool p_input_is_upper = false) {
String ret;
Vector<String> parts = p_identifier.split("_", true);
for (int i = 0; i < parts.size(); i++) {
String part = parts[i];
if (part.length()) {
part[0] = _find_upper(part[0]);
if (p_input_is_upper) {
for (int j = 1; j < part.length(); j++) {
part[j] = _find_lower(part[j]);
}
}
ret += part;
} else {
if (i == 0 || i == (parts.size() - 1)) {
// Preserve underscores at the beginning and end
ret += "_";
} else {
// Preserve contiguous underscores
if (parts[i - 1].length()) {
ret += "__";
} else {
ret += "_";
}
}
}
}
return ret;
}
static String snake_to_camel_case(const String &p_identifier, bool p_input_is_upper = false) {
String ret;
Vector<String> parts = p_identifier.split("_", true);
for (int i = 0; i < parts.size(); i++) {
String part = parts[i];
if (part.length()) {
if (i != 0) {
part[0] = _find_upper(part[0]);
}
if (p_input_is_upper) {
for (int j = i != 0 ? 1 : 0; j < part.length(); j++) {
part[j] = _find_lower(part[j]);
}
}
ret += part;
} else {
if (i == 0 || i == (parts.size() - 1)) {
// Preserve underscores at the beginning and end
ret += "_";
} else {
// Preserve contiguous underscores
if (parts[i - 1].length()) {
ret += "__";
} else {
ret += "_";
}
}
}
}
return ret;
}
String BindingsGenerator::bbcode_to_xml(const String &p_bbcode, const TypeInterface *p_itype) {
// Based on the version in EditorHelp
if (p_bbcode.is_empty()) {
return String();
}
DocTools *doc = EditorHelp::get_doc_data();
String bbcode = p_bbcode;
StringBuilder xml_output;
xml_output.append("<para>");
List<String> tag_stack;
bool code_tag = false;
int pos = 0;
while (pos < bbcode.length()) {
int brk_pos = bbcode.find("[", pos);
if (brk_pos < 0) {
brk_pos = bbcode.length();
}
if (brk_pos > pos) {
String text = bbcode.substr(pos, brk_pos - pos);
if (code_tag || tag_stack.size() > 0) {
xml_output.append(text.xml_escape());
} else {
Vector<String> lines = text.split("\n");
for (int i = 0; i < lines.size(); i++) {
if (i != 0) {
xml_output.append("<para>");
}
xml_output.append(lines[i].xml_escape());
if (i != lines.size() - 1) {
xml_output.append("</para>\n");
}
}
}
}
if (brk_pos == bbcode.length()) {
break; // nothing else to add
}
int brk_end = bbcode.find("]", brk_pos + 1);
if (brk_end == -1) {
String text = bbcode.substr(brk_pos, bbcode.length() - brk_pos);
if (code_tag || tag_stack.size() > 0) {
xml_output.append(text.xml_escape());
} else {
Vector<String> lines = text.split("\n");
for (int i = 0; i < lines.size(); i++) {
if (i != 0) {
xml_output.append("<para>");
}
xml_output.append(lines[i].xml_escape());
if (i != lines.size() - 1) {
xml_output.append("</para>\n");
}
}
}
break;
}
String tag = bbcode.substr(brk_pos + 1, brk_end - brk_pos - 1);
if (tag.begins_with("/")) {
bool tag_ok = tag_stack.size() && tag_stack.front()->get() == tag.substr(1, tag.length());
if (!tag_ok) {
xml_output.append("[");
pos = brk_pos + 1;
continue;
}
tag_stack.pop_front();
pos = brk_end + 1;
code_tag = false;
if (tag == "/url") {
xml_output.append("</a>");
} else if (tag == "/code") {
xml_output.append("</c>");
} else if (tag == "/codeblock") {
xml_output.append("</code>");
}
} else if (code_tag) {
xml_output.append("[");
pos = brk_pos + 1;
} else if (tag.begins_with("method ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ") || tag.begins_with("constant ") || tag.begins_with("theme_item ")) {
const int tag_end = tag.find(" ");
const String link_tag = tag.substr(0, tag_end);
const String link_target = tag.substr(tag_end + 1, tag.length()).lstrip(" ");
const Vector<String> link_target_parts = link_target.split(".");
if (link_target_parts.size() <= 0 || link_target_parts.size() > 2) {
ERR_PRINT("Invalid reference format: '" + tag + "'.");
xml_output.append("<c>");
xml_output.append(tag);
xml_output.append("</c>");
pos = brk_end + 1;
continue;
}
const TypeInterface *target_itype;
StringName target_cname;
if (link_target_parts.size() == 2) {
target_itype = _get_type_or_null(TypeReference(link_target_parts[0]));
if (!target_itype) {
target_itype = _get_type_or_null(TypeReference("_" + link_target_parts[0]));
}
target_cname = link_target_parts[1];
} else {
target_itype = p_itype;
target_cname = link_target_parts[0];
}
if (link_tag == "method") {
_append_xml_method(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "member") {
_append_xml_member(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "signal") {
_append_xml_signal(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "enum") {
_append_xml_enum(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "constant") {
_append_xml_constant(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "theme_item") {
// We do not declare theme_items in any way in C#, so there is nothing to reference
_append_xml_undeclared(xml_output, link_target);
}
pos = brk_end + 1;
} else if (doc->class_list.has(tag)) {
if (tag == "Array" || tag == "Dictionary") {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE_COLLECTIONS ".");
xml_output.append(tag);
xml_output.append("\"/>");
} else if (tag == "bool" || tag == "int") {
xml_output.append("<see cref=\"");
xml_output.append(tag);
xml_output.append("\"/>");
} else if (tag == "float") {
xml_output.append("<see cref=\""
#ifdef REAL_T_IS_DOUBLE
"double"
#else
"float"
#endif
"\"/>");
} else if (tag == "Variant") {
// We use System.Object for Variant, so there is no Variant type in C#
xml_output.append("<c>Variant</c>");
} else if (tag == "String") {
xml_output.append("<see cref=\"string\"/>");
} else if (tag == "Nil") {
xml_output.append("<see langword=\"null\"/>");
} else if (tag.begins_with("@")) {
// @GlobalScope, @GDScript, etc
xml_output.append("<c>");
xml_output.append(tag);
xml_output.append("</c>");
} else if (tag == "PackedByteArray") {
xml_output.append("<see cref=\"T:byte[]\"/>");
} else if (tag == "PackedInt32Array") {
xml_output.append("<see cref=\"T:int[]\"/>");
} else if (tag == "PackedInt64Array") {
xml_output.append("<see cref=\"T:long[]\"/>");
} else if (tag == "PackedFloat32Array") {
xml_output.append("<see cref=\"T:float[]\"/>");
} else if (tag == "PackedFloat64Array") {
xml_output.append("<see cref=\"T:double[]\"/>");
} else if (tag == "PackedStringArray") {
xml_output.append("<see cref=\"T:string[]\"/>");
} else if (tag == "PackedVector2Array") {
xml_output.append("<see cref=\"T:" BINDINGS_NAMESPACE ".Vector2[]\"/>");
} else if (tag == "PackedVector3Array") {
xml_output.append("<see cref=\"T:" BINDINGS_NAMESPACE ".Vector3[]\"/>");
} else if (tag == "PackedColorArray") {
xml_output.append("<see cref=\"T:" BINDINGS_NAMESPACE ".Color[]\"/>");
} else {
const TypeInterface *target_itype = _get_type_or_null(TypeReference(tag));
if (!target_itype) {
target_itype = _get_type_or_null(TypeReference("_" + tag));
}
if (target_itype) {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
xml_output.append(target_itype->proxy_name);
xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve type reference in documentation: '" + tag + "'.");
xml_output.append("<c>");
xml_output.append(tag);
xml_output.append("</c>");
}
}
pos = brk_end + 1;
} else if (tag == "b") {
// bold is not supported in xml comments
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "i") {
// italics is not supported in xml comments
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "code") {
xml_output.append("<c>");
code_tag = true;
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "codeblock") {
xml_output.append("<code>");
code_tag = true;
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "kbd") {
// keyboard combinations are not supported in xml comments
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "center") {
// center alignment is not supported in xml comments
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "br") {
xml_output.append("\n"); // FIXME: Should use <para> instead. Luckily this tag isn't used for now.
pos = brk_end + 1;
} else if (tag == "u") {
// underline is not supported in xml comments
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "s") {
// strikethrough is not supported in xml comments
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "url") {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String url = bbcode.substr(brk_end + 1, end - brk_end - 1);
xml_output.append("<a href=\"");
xml_output.append(url);
xml_output.append("\">");
xml_output.append(url);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("url=")) {
String url = tag.substr(4, tag.length());
xml_output.append("<a href=\"");
xml_output.append(url);
xml_output.append("\">");
pos = brk_end + 1;
tag_stack.push_front("url");
} else if (tag == "img") {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String image = bbcode.substr(brk_end + 1, end - brk_end - 1);
// Not supported. Just append the bbcode.
xml_output.append("[img]");
xml_output.append(image);
xml_output.append("[/img]");
pos = end;
tag_stack.push_front(tag);
} else if (tag.begins_with("color=")) {
// Not supported.
pos = brk_end + 1;
tag_stack.push_front("color");
} else if (tag.begins_with("font=")) {
// Not supported.
pos = brk_end + 1;
tag_stack.push_front("font");
} else {
xml_output.append("["); // ignore
pos = brk_pos + 1;
}
}
xml_output.append("</para>");
return xml_output.as_string();
}
void BindingsGenerator::_append_xml_method(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target_parts[0] == name_cache.type_at_GlobalScope) {
if (OS::get_singleton()->is_stdout_verbose()) {
OS::get_singleton()->print("Cannot resolve @GlobalScope method reference in documentation: %s\n", p_link_target.utf8().get_data());
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve method reference for non-Godot.Object type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from method reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
if (p_target_cname == "_init") {
// The _init method is not declared in C#, reference the constructor instead
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append("()\"/>");
} else {
const MethodInterface *target_imethod = p_target_itype->find_method_by_name(p_target_cname);
if (target_imethod) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_imethod->proxy_name);
p_xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve method reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
}
void BindingsGenerator::_append_xml_member(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target.find("/") >= 0) {
// Properties with '/' (slash) in the name are not declared in C#, so there is nothing to reference.
_append_xml_undeclared(p_xml_output, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve member reference for non-Godot.Object type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from member reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
const TypeInterface *current_itype = p_target_itype;
const PropertyInterface *target_iprop = nullptr;
while (target_iprop == nullptr && current_itype != nullptr) {
target_iprop = current_itype->find_property_by_name(p_target_cname);
if (target_iprop == nullptr) {
current_itype = _get_type_or_null(TypeReference(current_itype->base_name));
}
}
if (target_iprop) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(current_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_iprop->proxy_name);
p_xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve member reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
void BindingsGenerator::_append_xml_signal(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve signal reference for non-Godot.Object type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from signal reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
const SignalInterface *target_isignal = p_target_itype->find_signal_by_name(p_target_cname);
if (target_isignal) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_isignal->proxy_name);
p_xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve signal reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
void BindingsGenerator::_append_xml_enum(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
const StringName search_cname = !p_target_itype ? p_target_cname : StringName(p_target_itype->name + "." + (String)p_target_cname);
HashMap<StringName, TypeInterface>::ConstIterator enum_match = enum_types.find(search_cname);
if (!enum_match && search_cname != p_target_cname) {
enum_match = enum_types.find(p_target_cname);
}
if (enum_match) {
const TypeInterface &target_enum_itype = enum_match->value;
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(target_enum_itype.proxy_name); // Includes nesting class if any
p_xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve enum reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
void BindingsGenerator::_append_xml_constant(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target_parts[0] == name_cache.type_at_GlobalScope) {
_append_xml_constant_in_global_scope(p_xml_output, p_target_cname, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
// Search in @GlobalScope as a last resort if no class was specified
if (p_link_target_parts.size() == 1) {
_append_xml_constant_in_global_scope(p_xml_output, p_target_cname, p_link_target);
return;
}
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve constant reference for non-Godot.Object type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from constant reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
// Try to find the constant in the current class
const ConstantInterface *target_iconst = find_constant_by_name(p_target_cname, p_target_itype->constants);
if (target_iconst) {
// Found constant in current class
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else {
// Try to find as enum constant in the current class
const EnumInterface *target_ienum = nullptr;
for (const EnumInterface &ienum : p_target_itype->enums) {
target_ienum = &ienum;
target_iconst = find_constant_by_name(p_target_cname, target_ienum->constants);
if (target_iconst) {
break;
}
}
if (target_iconst) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_ienum->cname);
p_xml_output.append(".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else if (p_link_target_parts.size() == 1) {
// Also search in @GlobalScope as a last resort if no class was specified
_append_xml_constant_in_global_scope(p_xml_output, p_target_cname, p_link_target);
} else {
ERR_PRINT("Cannot resolve constant reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
}
void BindingsGenerator::_append_xml_constant_in_global_scope(StringBuilder &p_xml_output, const String &p_target_cname, const String &p_link_target) {
// Try to find as a global constant
const ConstantInterface *target_iconst = find_constant_by_name(p_target_cname, global_constants);
if (target_iconst) {
// Found global constant
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE "." BINDINGS_GLOBAL_SCOPE_CLASS ".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else {
// Try to find as global enum constant
const EnumInterface *target_ienum = nullptr;
for (const EnumInterface &ienum : global_enums) {
target_ienum = &ienum;
target_iconst = find_constant_by_name(p_target_cname, target_ienum->constants);
if (target_iconst) {
break;
}
}
if (target_iconst) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(target_ienum->cname);
p_xml_output.append(".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve global constant reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
void BindingsGenerator::_append_xml_undeclared(StringBuilder &p_xml_output, const String &p_link_target) {
p_xml_output.append("<c>");
p_xml_output.append(p_link_target);
p_xml_output.append("</c>");
}
int BindingsGenerator::_determine_enum_prefix(const EnumInterface &p_ienum) {
CRASH_COND(p_ienum.constants.is_empty());
const ConstantInterface &front_iconstant = p_ienum.constants.front()->get();
Vector<String> front_parts = front_iconstant.name.split("_", /* p_allow_empty: */ true);
int candidate_len = front_parts.size() - 1;
if (candidate_len == 0) {
return 0;
}
for (const ConstantInterface &iconstant : p_ienum.constants) {
Vector<String> parts = iconstant.name.split("_", /* p_allow_empty: */ true);
int i;
for (i = 0; i < candidate_len && i < parts.size(); i++) {
if (front_parts[i] != parts[i]) {
// HARDCODED: Some Flag enums have the prefix 'FLAG_' for everything except 'FLAGS_DEFAULT' (same for 'METHOD_FLAG_' and'METHOD_FLAGS_DEFAULT').
bool hardcoded_exc = (i == candidate_len - 1 && ((front_parts[i] == "FLAGS" && parts[i] == "FLAG") || (front_parts[i] == "FLAG" && parts[i] == "FLAGS")));
if (!hardcoded_exc) {
break;
}
}
}
candidate_len = i;
if (candidate_len == 0) {
return 0;
}
}
return candidate_len;
}
void BindingsGenerator::_apply_prefix_to_enum_constants(BindingsGenerator::EnumInterface &p_ienum, int p_prefix_length) {
if (p_prefix_length > 0) {
for (ConstantInterface &iconstant : p_ienum.constants) {
int curr_prefix_length = p_prefix_length;
String constant_name = iconstant.name;
Vector<String> parts = constant_name.split("_", /* p_allow_empty: */ true);
if (parts.size() <= curr_prefix_length) {
continue;
}
if (is_digit(parts[curr_prefix_length][0])) {
// The name of enum constants may begin with a numeric digit when strip from the enum prefix,
// so we make the prefix for this constant one word shorter in those cases.
for (curr_prefix_length = curr_prefix_length - 1; curr_prefix_length > 0; curr_prefix_length--) {
if (!is_digit(parts[curr_prefix_length][0])) {
break;
}
}
}
constant_name = "";
for (int i = curr_prefix_length; i < parts.size(); i++) {
if (i > curr_prefix_length) {
constant_name += "_";
}
constant_name += parts[i];
}
iconstant.proxy_name = snake_to_pascal_case(constant_name, true);
}
}
}
void BindingsGenerator::_generate_method_icalls(const TypeInterface &p_itype) {
for (const MethodInterface &imethod : p_itype.methods) {
if (imethod.is_virtual) {
continue;
}
const TypeInterface *return_type = _get_type_or_placeholder(imethod.return_type);
String im_sig = "IntPtr " CS_PARAM_METHODBIND;
String im_unique_sig = imethod.return_type.cname.operator String() + ",IntPtr";
if (!imethod.is_static) {
im_sig += ", IntPtr " CS_PARAM_INSTANCE;
im_unique_sig += ",IntPtr";
}
// Get arguments information
int i = 0;
for (const ArgumentInterface &iarg : imethod.arguments) {
const TypeInterface *arg_type = _get_type_or_placeholder(iarg.type);
im_sig += ", ";
im_sig += arg_type->im_type_in;
im_sig += " arg";
im_sig += itos(i + 1);
im_unique_sig += ",";
im_unique_sig += get_unique_sig(*arg_type);
i++;
}
String im_type_out = return_type->im_type_out;
if (return_type->ret_as_byref_arg) {
// Doesn't affect the unique signature
im_type_out = "void";
im_sig += ", ";
im_sig += return_type->im_type_out;
im_sig += " argRet";
i++;
}
// godot_icall_{argc}_{icallcount}
String icall_method = ICALL_PREFIX;
icall_method += itos(imethod.arguments.size());
icall_method += "_";
icall_method += itos(method_icalls.size());
InternalCall im_icall = InternalCall(p_itype.api_type, icall_method, im_type_out, im_sig, im_unique_sig);
List<InternalCall>::Element *match = method_icalls.find(im_icall);
if (match) {
if (p_itype.api_type != ClassDB::API_EDITOR) {
match->get().editor_only = false;
}
method_icalls_map.insert(&imethod, &match->get());
} else {
List<InternalCall>::Element *added = method_icalls.push_back(im_icall);
method_icalls_map.insert(&imethod, &added->get());
}
}
}
void BindingsGenerator::_generate_array_extensions(StringBuilder &p_output) {
p_output.append("using System;\n\n");
p_output.append("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
// The class where we put the extensions doesn't matter, so just use "GD".
p_output.append(INDENT1 "public static partial class " BINDINGS_GLOBAL_SCOPE_CLASS "\n" INDENT1 "{");
#define ARRAY_IS_EMPTY(m_type) \
p_output.append("\n" INDENT2 "/// <summary>\n"); \
p_output.append(INDENT2 "/// Returns true if this " #m_type " array is empty or doesn't exist.\n"); \
p_output.append(INDENT2 "/// </summary>\n"); \
p_output.append(INDENT2 "/// <param name=\"instance\">The " #m_type " array check.</param>\n"); \
p_output.append(INDENT2 "/// <returns>Whether or not the array is empty.</returns>\n"); \
p_output.append(INDENT2 "public static bool IsEmpty(this " #m_type "[] instance)\n"); \
p_output.append(INDENT2 OPEN_BLOCK); \
p_output.append(INDENT3 "return instance == null || instance.Length == 0;\n"); \
p_output.append(INDENT2 CLOSE_BLOCK);
#define ARRAY_JOIN(m_type) \
p_output.append("\n" INDENT2 "/// <summary>\n"); \
p_output.append(INDENT2 "/// Converts this " #m_type " array to a string delimited by the given string.\n"); \
p_output.append(INDENT2 "/// </summary>\n"); \
p_output.append(INDENT2 "/// <param name=\"instance\">The " #m_type " array to convert.</param>\n"); \
p_output.append(INDENT2 "/// <param name=\"delimiter\">The delimiter to use between items.</param>\n"); \
p_output.append(INDENT2 "/// <returns>A single string with all items.</returns>\n"); \
p_output.append(INDENT2 "public static string Join(this " #m_type "[] instance, string delimiter = \", \")\n"); \
p_output.append(INDENT2 OPEN_BLOCK); \
p_output.append(INDENT3 "return String.Join(delimiter, instance);\n"); \
p_output.append(INDENT2 CLOSE_BLOCK);
#define ARRAY_STRINGIFY(m_type) \
p_output.append("\n" INDENT2 "/// <summary>\n"); \
p_output.append(INDENT2 "/// Converts this " #m_type " array to a string with brackets.\n"); \
p_output.append(INDENT2 "/// </summary>\n"); \
p_output.append(INDENT2 "/// <param name=\"instance\">The " #m_type " array to convert.</param>\n"); \
p_output.append(INDENT2 "/// <returns>A single string with all items.</returns>\n"); \
p_output.append(INDENT2 "public static string Stringify(this " #m_type "[] instance)\n"); \
p_output.append(INDENT2 OPEN_BLOCK); \
p_output.append(INDENT3 "return \"[\" + instance.Join() + \"]\";\n"); \
p_output.append(INDENT2 CLOSE_BLOCK);
#define ARRAY_ALL(m_type) \
ARRAY_IS_EMPTY(m_type) \
ARRAY_JOIN(m_type) \
ARRAY_STRINGIFY(m_type)
ARRAY_ALL(byte);
ARRAY_ALL(int);
ARRAY_ALL(long);
ARRAY_ALL(float);
ARRAY_ALL(double);
ARRAY_ALL(string);
ARRAY_ALL(Color);
ARRAY_ALL(Vector2);
ARRAY_ALL(Vector2i);
ARRAY_ALL(Vector3);
ARRAY_ALL(Vector3i);
#undef ARRAY_ALL
#undef ARRAY_IS_EMPTY
#undef ARRAY_JOIN
#undef ARRAY_STRINGIFY
p_output.append(INDENT1 CLOSE_BLOCK); // End of GD class.
p_output.append(CLOSE_BLOCK); // End of namespace.
}
void BindingsGenerator::_generate_global_constants(StringBuilder &p_output) {
// Constants (in partial GD class)
p_output.append("\n#pragma warning disable CS1591 // Disable warning: "
"'Missing XML comment for publicly visible type or member'\n");
p_output.append("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
p_output.append(INDENT1 "public static partial class " BINDINGS_GLOBAL_SCOPE_CLASS "\n" INDENT1 "{");
for (const ConstantInterface &iconstant : global_constants) {
if (iconstant.const_doc && iconstant.const_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), nullptr);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
p_output.append(MEMBER_BEGIN "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
p_output.append(INDENT2 "/// ");
p_output.append(summary_lines[i]);
p_output.append("\n");
}
p_output.append(INDENT2 "/// </summary>");
}
}
p_output.append(MEMBER_BEGIN "public const long ");
p_output.append(iconstant.proxy_name);
p_output.append(" = ");
p_output.append(itos(iconstant.value));
p_output.append(";");
}
if (!global_constants.is_empty()) {
p_output.append("\n");
}
p_output.append(INDENT1 CLOSE_BLOCK); // end of GD class
// Enums
for (const EnumInterface &ienum : global_enums) {
CRASH_COND(ienum.constants.is_empty());
String enum_proxy_name = ienum.cname.operator String();
bool enum_in_static_class = false;
if (enum_proxy_name.find(".") > 0) {
enum_in_static_class = true;
String enum_class_name = enum_proxy_name.get_slicec('.', 0);
enum_proxy_name = enum_proxy_name.get_slicec('.', 1);
CRASH_COND(enum_class_name != "Variant"); // Hard-coded...
_log("Declaring global enum '%s' inside static class '%s'\n", enum_proxy_name.utf8().get_data(), enum_class_name.utf8().get_data());
p_output.append("\n" INDENT1 "public static partial class ");
p_output.append(enum_class_name);
p_output.append("\n" INDENT1 OPEN_BLOCK);
}
p_output.append("\n" INDENT1 "public enum ");
p_output.append(enum_proxy_name);
p_output.append(" : long");
p_output.append("\n" INDENT1 OPEN_BLOCK);
const ConstantInterface &last = ienum.constants.back()->get();
for (const ConstantInterface &iconstant : ienum.constants) {
if (iconstant.const_doc && iconstant.const_doc->description.size()) {