diff options
Diffstat (limited to 'core/math/expression.h')
| -rw-r--r-- | core/math/expression.h | 151 |
1 files changed, 31 insertions, 120 deletions
diff --git a/core/math/expression.h b/core/math/expression.h index 78de225ebf..a6b288ed6e 100644 --- a/core/math/expression.h +++ b/core/math/expression.h @@ -5,8 +5,8 @@ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 */ @@ -31,110 +31,27 @@ #ifndef EXPRESSION_H #define EXPRESSION_H -#include "core/reference.h" +#include "core/object/reference.h" class Expression : public Reference { GDCLASS(Expression, Reference); -public: - enum BuiltinFunc { - MATH_SIN, - MATH_COS, - MATH_TAN, - MATH_SINH, - MATH_COSH, - MATH_TANH, - MATH_ASIN, - MATH_ACOS, - MATH_ATAN, - MATH_ATAN2, - MATH_SQRT, - MATH_FMOD, - MATH_FPOSMOD, - MATH_POSMOD, - MATH_FLOOR, - MATH_CEIL, - MATH_ROUND, - MATH_ABS, - MATH_SIGN, - MATH_POW, - MATH_LOG, - MATH_EXP, - MATH_ISNAN, - MATH_ISINF, - MATH_EASE, - MATH_STEP_DECIMALS, - MATH_STEPIFY, - MATH_LERP, - MATH_LERP_ANGLE, - MATH_INVERSE_LERP, - MATH_RANGE_LERP, - MATH_SMOOTHSTEP, - MATH_MOVE_TOWARD, - MATH_DECTIME, - MATH_RANDOMIZE, - MATH_RAND, - MATH_RANDF, - MATH_RANDOM, - MATH_SEED, - MATH_RANDSEED, - MATH_DEG2RAD, - MATH_RAD2DEG, - MATH_LINEAR2DB, - MATH_DB2LINEAR, - MATH_POLAR2CARTESIAN, - MATH_CARTESIAN2POLAR, - MATH_WRAP, - MATH_WRAPF, - LOGIC_MAX, - LOGIC_MIN, - LOGIC_CLAMP, - LOGIC_NEAREST_PO2, - OBJ_WEAKREF, - FUNC_FUNCREF, - TYPE_CONVERT, - TYPE_OF, - TYPE_EXISTS, - TEXT_CHAR, - TEXT_ORD, - TEXT_STR, - TEXT_PRINT, - TEXT_PRINTERR, - TEXT_PRINTRAW, - VAR_TO_STR, - STR_TO_VAR, - VAR_TO_BYTES, - BYTES_TO_VAR, - COLORN, - FUNC_MAX - }; - - static int get_func_argument_count(BuiltinFunc p_func); - static String get_func_name(BuiltinFunc p_func); - static void exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant *r_return, Callable::CallError &r_error, String &r_error_str); - static BuiltinFunc find_function(const String &p_string); - private: - static const char *func_name[FUNC_MAX]; - struct Input { - - Variant::Type type; + Variant::Type type = Variant::NIL; String name; - Input() : - type(Variant::NIL) { - } + Input() {} }; Vector<Input> inputs; - Variant::Type output_type; + Variant::Type output_type = Variant::NIL; String expression; - bool sequenced; - int str_ofs; - bool expression_dirty; + bool sequenced = false; + int str_ofs = 0; + bool expression_dirty = false; bool _compile_expression(); @@ -182,14 +99,14 @@ private: static const char *token_name[TK_MAX]; struct Token { - TokenType type; Variant value; }; void _set_error(const String &p_err) { - if (error_set) + if (error_set) { return; + } error_str = p_err; error_set = true; } @@ -197,10 +114,9 @@ private: Error _get_token(Token &r_token); String error_str; - bool error_set; + bool error_set = true; struct ENode { - enum Type { TYPE_INPUT, TYPE_CONSTANT, @@ -215,11 +131,11 @@ private: TYPE_CALL }; - ENode *next; + ENode *next = nullptr; - Type type; + Type type = TYPE_INPUT; - ENode() { next = nullptr; } + ENode() {} virtual ~ENode() { if (next) { memdelete(next); @@ -228,8 +144,7 @@ private: }; struct ExpressionNode { - - bool is_op; + bool is_op = false; union { Variant::Operator op; ENode *node; @@ -239,26 +154,23 @@ private: ENode *_parse_expression(); struct InputNode : public ENode { - - int index; + int index = 0; InputNode() { type = TYPE_INPUT; } }; struct ConstantNode : public ENode { - - Variant value; + Variant value = Variant::NIL; ConstantNode() { type = TYPE_CONSTANT; } }; struct OperatorNode : public ENode { + Variant::Operator op = Variant::Operator::OP_ADD; - Variant::Operator op; - - ENode *nodes[2]; + ENode *nodes[2] = { nullptr, nullptr }; OperatorNode() { type = TYPE_OPERATOR; @@ -266,15 +178,14 @@ private: }; struct SelfNode : public ENode { - SelfNode() { type = TYPE_SELF; } }; struct IndexNode : public ENode { - ENode *base; - ENode *index; + ENode *base = nullptr; + ENode *index = nullptr; IndexNode() { type = TYPE_INDEX; @@ -282,7 +193,7 @@ private: }; struct NamedIndexNode : public ENode { - ENode *base; + ENode *base = nullptr; StringName name; NamedIndexNode() { @@ -291,7 +202,7 @@ private: }; struct ConstructorNode : public ENode { - Variant::Type data_type; + Variant::Type data_type = Variant::Type::NIL; Vector<ENode *> arguments; ConstructorNode() { @@ -300,7 +211,7 @@ private: }; struct CallNode : public ENode { - ENode *base; + ENode *base = nullptr; StringName method; Vector<ENode *> arguments; @@ -324,7 +235,7 @@ private: }; struct BuiltinFuncNode : public ENode { - BuiltinFunc func; + StringName func; Vector<ENode *> arguments; BuiltinFuncNode() { type = TYPE_BUILTIN_FUNC; @@ -339,12 +250,12 @@ private: return node; } - ENode *root; - ENode *nodes; + ENode *root = nullptr; + ENode *nodes = nullptr; Vector<String> input_names; - bool execution_error; + bool execution_error = false; bool _execute(const Array &p_inputs, Object *p_instance, Expression::ENode *p_node, Variant &r_ret, String &r_error_str); protected: @@ -352,11 +263,11 @@ protected: public: Error parse(const String &p_expression, const Vector<String> &p_input_names = Vector<String>()); - Variant execute(Array p_inputs, Object *p_base = nullptr, bool p_show_error = true); + Variant execute(Array p_inputs = Array(), Object *p_base = nullptr, bool p_show_error = true); bool has_execute_failed() const; String get_error_text() const; - Expression(); + Expression() {} ~Expression(); }; |