mirror of
https://github.com/godotengine/godot
synced 2024-11-02 10:25:48 +00:00
547 lines
13 KiB
C++
547 lines
13 KiB
C++
/*************************************************************************/
|
|
/* gdscript_parser.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2017 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. */
|
|
/*************************************************************************/
|
|
#ifndef GDSCRIPT_PARSER_H
|
|
#define GDSCRIPT_PARSER_H
|
|
|
|
#include "gdscript_functions.h"
|
|
#include "gdscript_tokenizer.h"
|
|
#include "map.h"
|
|
#include "object.h"
|
|
#include "script_language.h"
|
|
|
|
class GDScriptParser {
|
|
public:
|
|
struct Node {
|
|
|
|
enum Type {
|
|
TYPE_CLASS,
|
|
TYPE_FUNCTION,
|
|
TYPE_BUILT_IN_FUNCTION,
|
|
TYPE_BLOCK,
|
|
TYPE_IDENTIFIER,
|
|
TYPE_TYPE,
|
|
TYPE_CONSTANT,
|
|
TYPE_ARRAY,
|
|
TYPE_DICTIONARY,
|
|
TYPE_SELF,
|
|
TYPE_OPERATOR,
|
|
TYPE_CONTROL_FLOW,
|
|
TYPE_LOCAL_VAR,
|
|
TYPE_ASSERT,
|
|
TYPE_BREAKPOINT,
|
|
TYPE_NEWLINE,
|
|
};
|
|
|
|
Node *next;
|
|
int line;
|
|
int column;
|
|
Type type;
|
|
|
|
virtual ~Node() {}
|
|
};
|
|
|
|
struct FunctionNode;
|
|
struct BlockNode;
|
|
|
|
struct ClassNode : public Node {
|
|
|
|
bool tool;
|
|
StringName name;
|
|
bool extends_used;
|
|
StringName extends_file;
|
|
Vector<StringName> extends_class;
|
|
|
|
struct Member {
|
|
PropertyInfo _export;
|
|
#ifdef TOOLS_ENABLED
|
|
Variant default_value;
|
|
#endif
|
|
StringName identifier;
|
|
StringName setter;
|
|
StringName getter;
|
|
int line;
|
|
Node *expression;
|
|
ScriptInstance::RPCMode rpc_mode;
|
|
};
|
|
struct Constant {
|
|
StringName identifier;
|
|
Node *expression;
|
|
};
|
|
|
|
struct Signal {
|
|
StringName name;
|
|
Vector<StringName> arguments;
|
|
};
|
|
|
|
Vector<ClassNode *> subclasses;
|
|
Vector<Member> variables;
|
|
Vector<Constant> constant_expressions;
|
|
Vector<FunctionNode *> functions;
|
|
Vector<FunctionNode *> static_functions;
|
|
Vector<Signal> _signals;
|
|
BlockNode *initializer;
|
|
BlockNode *ready;
|
|
ClassNode *owner;
|
|
//Vector<Node*> initializers;
|
|
int end_line;
|
|
|
|
ClassNode() {
|
|
tool = false;
|
|
type = TYPE_CLASS;
|
|
extends_used = false;
|
|
end_line = -1;
|
|
owner = NULL;
|
|
}
|
|
};
|
|
|
|
struct FunctionNode : public Node {
|
|
|
|
bool _static;
|
|
ScriptInstance::RPCMode rpc_mode;
|
|
StringName name;
|
|
Vector<StringName> arguments;
|
|
Vector<Node *> default_values;
|
|
BlockNode *body;
|
|
|
|
FunctionNode() {
|
|
type = TYPE_FUNCTION;
|
|
_static = false;
|
|
rpc_mode = ScriptInstance::RPC_MODE_DISABLED;
|
|
}
|
|
};
|
|
|
|
struct BlockNode : public Node {
|
|
|
|
ClassNode *parent_class;
|
|
BlockNode *parent_block;
|
|
Map<StringName, int> locals;
|
|
List<Node *> statements;
|
|
Vector<StringName> variables;
|
|
Vector<int> variable_lines;
|
|
|
|
Node *if_condition; //tiny hack to improve code completion on if () blocks
|
|
|
|
//the following is useful for code completion
|
|
List<BlockNode *> sub_blocks;
|
|
int end_line;
|
|
BlockNode() {
|
|
if_condition = NULL;
|
|
type = TYPE_BLOCK;
|
|
end_line = -1;
|
|
parent_block = NULL;
|
|
parent_class = NULL;
|
|
}
|
|
};
|
|
|
|
struct TypeNode : public Node {
|
|
|
|
Variant::Type vtype;
|
|
TypeNode() { type = TYPE_TYPE; }
|
|
};
|
|
struct BuiltInFunctionNode : public Node {
|
|
GDScriptFunctions::Function function;
|
|
BuiltInFunctionNode() { type = TYPE_BUILT_IN_FUNCTION; }
|
|
};
|
|
|
|
struct IdentifierNode : public Node {
|
|
|
|
StringName name;
|
|
IdentifierNode() { type = TYPE_IDENTIFIER; }
|
|
};
|
|
|
|
struct LocalVarNode : public Node {
|
|
|
|
StringName name;
|
|
Node *assign;
|
|
LocalVarNode() {
|
|
type = TYPE_LOCAL_VAR;
|
|
assign = NULL;
|
|
}
|
|
};
|
|
|
|
struct ConstantNode : public Node {
|
|
Variant value;
|
|
ConstantNode() { type = TYPE_CONSTANT; }
|
|
};
|
|
|
|
struct ArrayNode : public Node {
|
|
|
|
Vector<Node *> elements;
|
|
ArrayNode() { type = TYPE_ARRAY; }
|
|
};
|
|
|
|
struct DictionaryNode : public Node {
|
|
|
|
struct Pair {
|
|
|
|
Node *key;
|
|
Node *value;
|
|
};
|
|
|
|
Vector<Pair> elements;
|
|
DictionaryNode() { type = TYPE_DICTIONARY; }
|
|
};
|
|
|
|
struct SelfNode : public Node {
|
|
SelfNode() { type = TYPE_SELF; }
|
|
};
|
|
|
|
struct OperatorNode : public Node {
|
|
enum Operator {
|
|
//call/constructor operator
|
|
OP_CALL,
|
|
OP_PARENT_CALL,
|
|
OP_YIELD,
|
|
OP_IS,
|
|
//indexing operator
|
|
OP_INDEX,
|
|
OP_INDEX_NAMED,
|
|
//unary operators
|
|
OP_NEG,
|
|
OP_POS,
|
|
OP_NOT,
|
|
OP_BIT_INVERT,
|
|
OP_PREINC,
|
|
OP_PREDEC,
|
|
OP_INC,
|
|
OP_DEC,
|
|
//binary operators (in precedence order)
|
|
OP_IN,
|
|
OP_EQUAL,
|
|
OP_NOT_EQUAL,
|
|
OP_LESS,
|
|
OP_LESS_EQUAL,
|
|
OP_GREATER,
|
|
OP_GREATER_EQUAL,
|
|
OP_AND,
|
|
OP_OR,
|
|
OP_ADD,
|
|
OP_SUB,
|
|
OP_MUL,
|
|
OP_DIV,
|
|
OP_MOD,
|
|
OP_SHIFT_LEFT,
|
|
OP_SHIFT_RIGHT,
|
|
OP_INIT_ASSIGN,
|
|
OP_ASSIGN,
|
|
OP_ASSIGN_ADD,
|
|
OP_ASSIGN_SUB,
|
|
OP_ASSIGN_MUL,
|
|
OP_ASSIGN_DIV,
|
|
OP_ASSIGN_MOD,
|
|
OP_ASSIGN_SHIFT_LEFT,
|
|
OP_ASSIGN_SHIFT_RIGHT,
|
|
OP_ASSIGN_BIT_AND,
|
|
OP_ASSIGN_BIT_OR,
|
|
OP_ASSIGN_BIT_XOR,
|
|
OP_BIT_AND,
|
|
OP_BIT_OR,
|
|
OP_BIT_XOR,
|
|
//ternary operators
|
|
OP_TERNARY_IF,
|
|
OP_TERNARY_ELSE,
|
|
};
|
|
|
|
Operator op;
|
|
|
|
Vector<Node *> arguments;
|
|
OperatorNode() { type = TYPE_OPERATOR; }
|
|
};
|
|
|
|
struct PatternNode : public Node {
|
|
|
|
enum PatternType {
|
|
PT_CONSTANT,
|
|
PT_BIND,
|
|
PT_DICTIONARY,
|
|
PT_ARRAY,
|
|
PT_IGNORE_REST,
|
|
PT_WILDCARD
|
|
};
|
|
|
|
PatternType pt_type;
|
|
|
|
Node *constant;
|
|
StringName bind;
|
|
Map<ConstantNode *, PatternNode *> dictionary;
|
|
Vector<PatternNode *> array;
|
|
};
|
|
|
|
struct PatternBranchNode : public Node {
|
|
Vector<PatternNode *> patterns;
|
|
BlockNode *body;
|
|
};
|
|
|
|
struct MatchNode : public Node {
|
|
Node *val_to_match;
|
|
Vector<PatternBranchNode *> branches;
|
|
|
|
struct CompiledPatternBranch {
|
|
Node *compiled_pattern;
|
|
BlockNode *body;
|
|
};
|
|
|
|
Vector<CompiledPatternBranch> compiled_pattern_branches;
|
|
};
|
|
|
|
struct ControlFlowNode : public Node {
|
|
enum CFType {
|
|
CF_IF,
|
|
CF_FOR,
|
|
CF_WHILE,
|
|
CF_SWITCH,
|
|
CF_BREAK,
|
|
CF_CONTINUE,
|
|
CF_RETURN,
|
|
CF_MATCH
|
|
};
|
|
|
|
CFType cf_type;
|
|
Vector<Node *> arguments;
|
|
BlockNode *body;
|
|
BlockNode *body_else;
|
|
|
|
MatchNode *match;
|
|
|
|
ControlFlowNode *_else; //used for if
|
|
ControlFlowNode() {
|
|
type = TYPE_CONTROL_FLOW;
|
|
cf_type = CF_IF;
|
|
body = NULL;
|
|
body_else = NULL;
|
|
}
|
|
};
|
|
|
|
struct AssertNode : public Node {
|
|
Node *condition;
|
|
AssertNode() { type = TYPE_ASSERT; }
|
|
};
|
|
|
|
struct BreakpointNode : public Node {
|
|
BreakpointNode() { type = TYPE_BREAKPOINT; }
|
|
};
|
|
|
|
struct NewLineNode : public Node {
|
|
NewLineNode() { type = TYPE_NEWLINE; }
|
|
};
|
|
|
|
struct Expression {
|
|
|
|
bool is_op;
|
|
union {
|
|
OperatorNode::Operator op;
|
|
Node *node;
|
|
};
|
|
};
|
|
|
|
/*
|
|
struct OperatorNode : public Node {
|
|
|
|
DataType return_cache;
|
|
Operator op;
|
|
Vector<Node*> arguments;
|
|
virtual DataType get_datatype() const { return return_cache; }
|
|
|
|
OperatorNode() { type=TYPE_OPERATOR; return_cache=TYPE_VOID; }
|
|
};
|
|
|
|
struct VariableNode : public Node {
|
|
|
|
DataType datatype_cache;
|
|
StringName name;
|
|
virtual DataType get_datatype() const { return datatype_cache; }
|
|
|
|
VariableNode() { type=TYPE_VARIABLE; datatype_cache=TYPE_VOID; }
|
|
};
|
|
|
|
struct ConstantNode : public Node {
|
|
|
|
DataType datatype;
|
|
Variant value;
|
|
virtual DataType get_datatype() const { return datatype; }
|
|
|
|
ConstantNode() { type=TYPE_CONSTANT; }
|
|
};
|
|
|
|
struct BlockNode : public Node {
|
|
|
|
Map<StringName,DataType> variables;
|
|
List<Node*> statements;
|
|
BlockNode() { type=TYPE_BLOCK; }
|
|
};
|
|
|
|
struct ControlFlowNode : public Node {
|
|
|
|
FlowOperation flow_op;
|
|
Vector<Node*> statements;
|
|
ControlFlowNode() { type=TYPE_CONTROL_FLOW; flow_op=FLOW_OP_IF;}
|
|
};
|
|
|
|
struct MemberNode : public Node {
|
|
|
|
DataType datatype;
|
|
StringName name;
|
|
Node* owner;
|
|
virtual DataType get_datatype() const { return datatype; }
|
|
MemberNode() { type=TYPE_MEMBER; }
|
|
};
|
|
|
|
|
|
struct ProgramNode : public Node {
|
|
|
|
struct Function {
|
|
StringName name;
|
|
FunctionNode*function;
|
|
};
|
|
|
|
Map<StringName,DataType> builtin_variables;
|
|
Map<StringName,DataType> preexisting_variables;
|
|
|
|
Vector<Function> functions;
|
|
BlockNode *body;
|
|
|
|
ProgramNode() { type=TYPE_PROGRAM; }
|
|
};
|
|
*/
|
|
|
|
enum CompletionType {
|
|
COMPLETION_NONE,
|
|
COMPLETION_BUILT_IN_TYPE_CONSTANT,
|
|
COMPLETION_GET_NODE,
|
|
COMPLETION_FUNCTION,
|
|
COMPLETION_IDENTIFIER,
|
|
COMPLETION_PARENT_FUNCTION,
|
|
COMPLETION_METHOD,
|
|
COMPLETION_CALL_ARGUMENTS,
|
|
COMPLETION_RESOURCE_PATH,
|
|
COMPLETION_INDEX,
|
|
COMPLETION_VIRTUAL_FUNC,
|
|
COMPLETION_YIELD,
|
|
COMPLETION_ASSIGN,
|
|
};
|
|
|
|
private:
|
|
GDScriptTokenizer *tokenizer;
|
|
|
|
Node *head;
|
|
Node *list;
|
|
template <class T>
|
|
T *alloc_node();
|
|
|
|
bool validating;
|
|
bool for_completion;
|
|
int parenthesis;
|
|
bool error_set;
|
|
String error;
|
|
int error_line;
|
|
int error_column;
|
|
|
|
int pending_newline;
|
|
|
|
List<int> tab_level;
|
|
|
|
String base_path;
|
|
String self_path;
|
|
|
|
ClassNode *current_class;
|
|
FunctionNode *current_function;
|
|
BlockNode *current_block;
|
|
|
|
bool _get_completable_identifier(CompletionType p_type, StringName &identifier);
|
|
void _make_completable_call(int p_arg);
|
|
|
|
CompletionType completion_type;
|
|
StringName completion_cursor;
|
|
bool completion_static;
|
|
Variant::Type completion_built_in_constant;
|
|
Node *completion_node;
|
|
ClassNode *completion_class;
|
|
FunctionNode *completion_function;
|
|
BlockNode *completion_block;
|
|
int completion_line;
|
|
int completion_argument;
|
|
bool completion_found;
|
|
bool completion_ident_is_call;
|
|
|
|
PropertyInfo current_export;
|
|
|
|
ScriptInstance::RPCMode rpc_mode;
|
|
|
|
void _set_error(const String &p_error, int p_line = -1, int p_column = -1);
|
|
bool _recover_from_completion();
|
|
|
|
bool _parse_arguments(Node *p_parent, Vector<Node *> &p_args, bool p_static, bool p_can_codecomplete = false);
|
|
bool _enter_indent_block(BlockNode *p_block = NULL);
|
|
bool _parse_newline();
|
|
Node *_parse_expression(Node *p_parent, bool p_static, bool p_allow_assign = false, bool p_parsing_constant = false);
|
|
Node *_reduce_expression(Node *p_node, bool p_to_const = false);
|
|
Node *_parse_and_reduce_expression(Node *p_parent, bool p_static, bool p_reduce_const = false, bool p_allow_assign = false);
|
|
|
|
PatternNode *_parse_pattern(bool p_static);
|
|
void _parse_pattern_block(BlockNode *p_block, Vector<PatternBranchNode *> &p_branches, bool p_static);
|
|
void _transform_match_statment(BlockNode *p_block, MatchNode *p_match_statement);
|
|
void _generate_pattern(PatternNode *p_pattern, Node *p_node_to_match, Node *&p_resulting_node, Map<StringName, Node *> &p_bindings);
|
|
|
|
void _parse_block(BlockNode *p_block, bool p_static);
|
|
void _parse_extends(ClassNode *p_class);
|
|
void _parse_class(ClassNode *p_class);
|
|
bool _end_statement();
|
|
|
|
Error _parse(const String &p_base_path);
|
|
|
|
public:
|
|
String get_error() const;
|
|
int get_error_line() const;
|
|
int get_error_column() const;
|
|
Error parse(const String &p_code, const String &p_base_path = "", bool p_just_validate = false, const String &p_self_path = "", bool p_for_completion = false);
|
|
Error parse_bytecode(const Vector<uint8_t> &p_bytecode, const String &p_base_path = "", const String &p_self_path = "");
|
|
|
|
bool is_tool_script() const;
|
|
const Node *get_parse_tree() const;
|
|
|
|
//completion info
|
|
|
|
CompletionType get_completion_type();
|
|
StringName get_completion_cursor();
|
|
int get_completion_line();
|
|
Variant::Type get_completion_built_in_constant();
|
|
Node *get_completion_node();
|
|
ClassNode *get_completion_class();
|
|
BlockNode *get_completion_block();
|
|
FunctionNode *get_completion_function();
|
|
int get_completion_argument_index();
|
|
int get_completion_identifier_is_function();
|
|
|
|
void clear();
|
|
GDScriptParser();
|
|
~GDScriptParser();
|
|
};
|
|
|
|
#endif // GDSCRIPT_PARSER_H
|