godot/modules/gdscript/language_server/gdscript_extend_parser.h
2024-09-20 08:09:48 -05:00

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/**************************************************************************/
/* gdscript_extend_parser.h */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#ifndef GDSCRIPT_EXTEND_PARSER_H
#define GDSCRIPT_EXTEND_PARSER_H
#include "../gdscript_parser.h"
#include "godot_lsp.h"
#include "core/variant/variant.h"
#ifndef LINE_NUMBER_TO_INDEX
#define LINE_NUMBER_TO_INDEX(p_line) ((p_line) - 1)
#endif
#ifndef COLUMN_NUMBER_TO_INDEX
#define COLUMN_NUMBER_TO_INDEX(p_column) ((p_column) - 1)
#endif
#ifndef SYMBOL_SEPERATOR
#define SYMBOL_SEPERATOR "::"
#endif
#ifndef JOIN_SYMBOLS
#define JOIN_SYMBOLS(p_path, name) ((p_path) + SYMBOL_SEPERATOR + (name))
#endif
typedef HashMap<String, const lsp::DocumentSymbol *> ClassMembers;
/**
* Represents a Position as used by GDScript Parser. Used for conversion to and from `lsp::Position`.
*
* Difference to `lsp::Position`:
* * Line & Char/column: 1-based
* * LSP: both 0-based
* * Tabs are expanded to columns using tab size (`text_editor/behavior/indent/size`).
* * LSP: tab is single char
*
* Example:
* ```gdscript
* →→var my_value = 42
* ```
* `_` is at:
* * Godot: `column=12`
* * using `indent/size=4`
* * Note: counting starts at `1`
* * LSP: `character=8`
* * Note: counting starts at `0`
*/
struct GodotPosition {
int line;
int column;
GodotPosition(int p_line, int p_column) :
line(p_line), column(p_column) {}
lsp::Position to_lsp(const Vector<String> &p_lines) const;
static GodotPosition from_lsp(const lsp::Position p_pos, const Vector<String> &p_lines);
bool operator==(const GodotPosition &p_other) const {
return line == p_other.line && column == p_other.column;
}
String to_string() const {
return vformat("(%d,%d)", line, column);
}
};
struct GodotRange {
GodotPosition start;
GodotPosition end;
GodotRange(GodotPosition p_start, GodotPosition p_end) :
start(p_start), end(p_end) {}
lsp::Range to_lsp(const Vector<String> &p_lines) const;
static GodotRange from_lsp(const lsp::Range &p_range, const Vector<String> &p_lines);
bool operator==(const GodotRange &p_other) const {
return start == p_other.start && end == p_other.end;
}
String to_string() const {
return vformat("[%s:%s]", start.to_string(), end.to_string());
}
};
class ExtendGDScriptParser : public GDScriptParser {
String path;
Vector<String> lines;
lsp::DocumentSymbol class_symbol;
Vector<lsp::Diagnostic> diagnostics;
List<lsp::DocumentLink> document_links;
ClassMembers members;
HashMap<String, ClassMembers> inner_classes;
lsp::Range range_of_node(const GDScriptParser::Node *p_node) const;
void update_diagnostics();
void update_symbols();
void update_document_links(const String &p_code);
void parse_class_symbol(const GDScriptParser::ClassNode *p_class, lsp::DocumentSymbol &r_symbol);
void parse_function_symbol(const GDScriptParser::FunctionNode *p_func, lsp::DocumentSymbol &r_symbol);
Dictionary dump_function_api(const GDScriptParser::FunctionNode *p_func) const;
Dictionary dump_class_api(const GDScriptParser::ClassNode *p_class) const;
const lsp::DocumentSymbol *search_symbol_defined_at_line(int p_line, const lsp::DocumentSymbol &p_parent, const String &p_symbol_name = "") const;
Array member_completions;
public:
_FORCE_INLINE_ const String &get_path() const { return path; }
_FORCE_INLINE_ const Vector<String> &get_lines() const { return lines; }
_FORCE_INLINE_ const lsp::DocumentSymbol &get_symbols() const { return class_symbol; }
_FORCE_INLINE_ const Vector<lsp::Diagnostic> &get_diagnostics() const { return diagnostics; }
_FORCE_INLINE_ const ClassMembers &get_members() const { return members; }
_FORCE_INLINE_ const HashMap<String, ClassMembers> &get_inner_classes() const { return inner_classes; }
Error get_left_function_call(const lsp::Position &p_position, lsp::Position &r_func_pos, int &r_arg_index) const;
String get_text_for_completion(const lsp::Position &p_cursor) const;
String get_text_for_lookup_symbol(const lsp::Position &p_cursor, const String &p_symbol = "", bool p_func_required = false) const;
String get_identifier_under_position(const lsp::Position &p_position, lsp::Range &r_range) const;
String get_uri() const;
/**
* `p_symbol_name` gets ignored if empty. Otherwise symbol must match passed in named.
*
* Necessary when multiple symbols at same line for example with `func`:
* `func handle_arg(arg: int):`
* -> Without `p_symbol_name`: returns `handle_arg`. Even if parameter (`arg`) is wanted.
* With `p_symbol_name`: symbol name MUST match `p_symbol_name`: returns `arg`.
*/
const lsp::DocumentSymbol *get_symbol_defined_at_line(int p_line, const String &p_symbol_name = "") const;
const lsp::DocumentSymbol *get_member_symbol(const String &p_name, const String &p_subclass = "") const;
const List<lsp::DocumentLink> &get_document_links() const;
const Array &get_member_completions();
Dictionary generate_api() const;
Error parse(const String &p_code, const String &p_path);
};
#endif // GDSCRIPT_EXTEND_PARSER_H