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#ifndef VISUALSCRIPTEXPRESSION_H
#define VISUALSCRIPTEXPRESSION_H
#include "visual_script.h"
#include "visual_script_builtin_funcs.h"
class VisualScriptExpression : public VisualScriptNode {
OBJ_TYPE(VisualScriptExpression,VisualScriptNode)
friend class VisualScriptNodeInstanceExpression;
struct Input {
Variant::Type type;
String name;
Input() { type=Variant::NIL; }
};
Vector<Input> inputs;
Variant::Type output_type;
String expression;
bool sequenced;
int str_ofs;
bool expression_dirty;
bool _compile_expression();
enum TokenType {
TK_CURLY_BRACKET_OPEN,
TK_CURLY_BRACKET_CLOSE,
TK_BRACKET_OPEN,
TK_BRACKET_CLOSE,
TK_PARENTHESIS_OPEN,
TK_PARENTHESIS_CLOSE,
TK_IDENTIFIER,
TK_BUILTIN_FUNC,
TK_SELF,
TK_CONSTANT,
TK_BASIC_TYPE,
TK_COLON,
TK_COMMA,
TK_PERIOD,
TK_OP_IN,
TK_OP_EQUAL,
TK_OP_NOT_EQUAL,
TK_OP_LESS,
TK_OP_LESS_EQUAL,
TK_OP_GREATER,
TK_OP_GREATER_EQUAL,
TK_OP_AND,
TK_OP_OR,
TK_OP_NOT,
TK_OP_ADD,
TK_OP_SUB,
TK_OP_MUL,
TK_OP_DIV,
TK_OP_MOD,
TK_OP_SHIFT_LEFT,
TK_OP_SHIFT_RIGHT,
TK_OP_BIT_AND,
TK_OP_BIT_OR,
TK_OP_BIT_XOR,
TK_OP_BIT_INVERT,
TK_EOF,
TK_ERROR,
TK_MAX
};
static const char* token_name[TK_MAX];
struct Token {
TokenType type;
Variant value;
};
void _set_error(const String& p_err) {
if (error_set)
return;
error_str=p_err;
error_set=true;
}
Error _get_token(Token& r_token);
String error_str;
bool error_set;
struct ENode {
enum Type {
TYPE_INPUT,
TYPE_CONSTANT,
TYPE_SELF,
TYPE_OPERATOR,
TYPE_INDEX,
TYPE_NAMED_INDEX,
TYPE_ARRAY,
TYPE_DICTIONARY,
TYPE_CONSTRUCTOR,
TYPE_BUILTIN_FUNC,
TYPE_CALL
};
ENode *next;
Type type;
ENode() { next=NULL; }
virtual ~ENode() { if (next) { memdelete(next); } }
};
struct Expression {
bool is_op;
union {
Variant::Operator op;
ENode *node;
};
};
ENode* _parse_expression();
struct InputNode : public ENode {
int index;
InputNode() {
type=TYPE_INPUT;
}
};
struct ConstantNode : public ENode {
Variant value;
ConstantNode() {
type=TYPE_CONSTANT;
}
};
struct OperatorNode : public ENode {
Variant::Operator op;
ENode* nodes[2];
OperatorNode() {
type=TYPE_OPERATOR;
}
};
struct SelfNode : public ENode {
SelfNode() {
type=TYPE_SELF;
}
};
struct IndexNode : public ENode {
ENode*base;
ENode*index;
IndexNode() {
type=TYPE_INDEX;
}
};
struct NamedIndexNode : public ENode {
ENode*base;
StringName name;
NamedIndexNode() {
type=TYPE_NAMED_INDEX;
}
};
struct ConstructorNode : public ENode {
Variant::Type data_type;
Vector<ENode*> arguments;
ConstructorNode() {
type=TYPE_CONSTRUCTOR;
}
};
struct CallNode : public ENode {
ENode*base;
StringName method;
Vector<ENode*> arguments;
CallNode() {
type=TYPE_CALL;
}
};
struct ArrayNode : public ENode {
Vector<ENode*> array;
ArrayNode() {
type=TYPE_ARRAY;
}
};
struct DictionaryNode : public ENode {
Vector<ENode*> dict;
DictionaryNode() {
type=TYPE_DICTIONARY;
}
};
struct BuiltinFuncNode : public ENode {
VisualScriptBuiltinFunc::BuiltinFunc func;
Vector<ENode*> arguments;
BuiltinFuncNode() {
type=TYPE_BUILTIN_FUNC;
}
};
template<class T>
T* alloc_node() {
T* node = memnew(T);
node->next=nodes;
nodes=node;
return node;
}
ENode *root;
ENode *nodes;
protected:
bool _set(const StringName& p_name, const Variant& p_value);
bool _get(const StringName& p_name,Variant &r_ret) const;
void _get_property_list( List<PropertyInfo> *p_list) const;
public:
virtual int get_output_sequence_port_count() const;
virtual bool has_input_sequence_port() const;
virtual String get_output_sequence_port_text(int p_port) const;
virtual int get_input_value_port_count() const;
virtual int get_output_value_port_count() const;
virtual PropertyInfo get_input_value_port_info(int p_idx) const;
virtual PropertyInfo get_output_value_port_info(int p_idx) const;
virtual String get_caption() const;
virtual String get_text() const;
virtual String get_category() const { return "operators"; }
virtual VisualScriptNodeInstance* instance(VisualScriptInstance* p_instance);
VisualScriptExpression();
~VisualScriptExpression();
};
void register_visual_script_expression_node();
#endif // VISUALSCRIPTEXPRESSION_H
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