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// ast.h
// this file is part of Context Free
// ---------------------
// Copyright (C) 2009-2013 John Horigan - john@glyphic.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// John Horigan can be contacted at john@glyphic.com or at
// John Horigan, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
//
#ifndef INCLUDE_AST_H
#define INCLUDE_AST_H
#include <memory>
#include <vector>
#include <map>
#include <string>
#include "agg2/agg_math_stroke.h"
#include "agg2/agg_trans_affine.h"
#include "agg2/agg_pixfmt_rgba.h"
#include "location.hh"
#include <cstdint>
class RendererAST;
class Builder;
namespace AST {
using SymmList = std::vector<agg::trans_affine>;
using UIDdatatype = std::uint_fast32_t;
class ASTpath;
class ASTreplacement;
class ASTparameter;
class ASTrule;
class ASTcompiledPath;
class ASTpathOp;
class ASTexpression;
class ASTmodification;
class ASTruleSpecifier;
class ASTloop;
class ASTif;
class ASTswitch;
class ASTmodTerm;
class ASTrepContainer;
class ASTdefine;
class ASTcompiledPath;
using str_ptr = std::unique_ptr<std::string>;
using exp_ptr = std::unique_ptr<ASTexpression>;
using rep_ptr = std::unique_ptr<ASTreplacement>;
using ruleSpec_ptr = std::unique_ptr<ASTruleSpecifier>;
using rule_ptr = std::unique_ptr<ASTrule>;
using loop_ptr = std::unique_ptr<ASTloop>;
using if_ptr = std::unique_ptr<ASTif>;
using switch_ptr = std::unique_ptr<ASTswitch>;
using term_ptr = std::unique_ptr<ASTmodTerm>;
using mod_ptr = std::unique_ptr<ASTmodification>;
using cont_ptr = std::unique_ptr<ASTrepContainer>;
using def_ptr = std::unique_ptr<ASTdefine>;
using cpath_ptr = std::unique_ptr<ASTcompiledPath>;
using ASTbody = std::vector<rep_ptr>;
using ASTexpArray = std::vector<exp_ptr>;
using ASTtermArray = std::vector<term_ptr>;
using ASTparameters = std::vector<ASTparameter>;
using exp_list = std::initializer_list<ASTexpression*>;
enum expType {
NoType = 0, NumericType = 1, ModType = 2, RuleType = 4, FlagType = 8,
ReuseType = 16
};
enum Locality_t {
UnknownLocal = 0, // not known if dependent on parameters
ImpureNonlocal = 1, // dependent on parameters that have been modified
PureNonlocal = 3, // dependent on parameters that have not been modified
PureLocal = 7 // not dependent on parameters
};
enum class CompilePhase {
TypeCheck, Simplify
};
enum consts_e { MaxVectorSize = 99 };
expType decodeType(const std::string& typeName, int& mTuplesize,
bool& isNatural, const yy::location& mLocation);
class ASTdefine;
class ASTparameter {
public:
expType mType = NoType;
bool isParameter = false;
bool isLoopIndex = false;
bool isNatural = false;
Locality_t mLocality = UnknownLocal;
int mName = -1;
yy::location mLocation;
ASTdefine* mDefinition = nullptr; // weak pointer
int mStackIndex = -1;
int mTuplesize = 1;
static const std::map<expType, std::string> typeNames;
static const std::map<Locality_t, std::string> localityNames;
ASTparameter() = default;
ASTparameter(const std::string& typeName, int nameIndex,
const yy::location& where);
ASTparameter(int nameIndex, ASTdefine* def, const yy::location& where);
ASTparameter(int nameIndex, const yy::location& where);
// ctor for loop variables
ASTparameter(const ASTparameter&);
// ctor for copying parameter lists, never used after definitions are added
ASTparameter(ASTparameter&&) noexcept = default;
ASTparameter& operator=(const ASTparameter&);
// method for copying parameter lists, never used after definitions are added
ASTparameter& operator=(ASTparameter&&) noexcept = default;
void init(const std::string& typeName, int nameIndex);
void init(int nameIndex, ASTdefine* def);
void checkParam(const yy::location& typeLoc, const yy::location& nameLoc);
bool operator!=(const ASTparameter& p) const;
bool operator!=(const ASTexpression& e) const;
ASTexpression*
constCopy(const yy::location& where, const std::string& entropy) const;
static int CheckType(const ASTparameters* types, const ASTexpression* args,
const yy::location& where, bool checkNumber, Builder* b);
};
enum FlagTypes : unsigned {
CF_NONE = 0,
CF_MITER_JOIN = agg::miter_join,
CF_ROUND_JOIN = agg::round_join,
CF_BEVEL_JOIN = agg::bevel_join,
CF_JOIN_MASK = 0x7,
CF_JOIN_PRESENT = 8,
CF_BUTT_CAP = agg::butt_cap << 4,
CF_ROUND_CAP = agg::round_cap << 4,
CF_SQUARE_CAP = agg::square_cap << 4,
CF_CAP_MASK = 0x7 << 4,
CF_CAP_PRESENT = 8 << 4,
CF_ARC_CW = 1 << 8,
CF_ARC_LARGE = 1 << 9,
CF_CONTINUOUS = 1 << 10,
CF_ALIGN = 1 << 11,
CF_EVEN_ODD = 1 << 12,
CF_ISO_WIDTH = 1 << 13,
CF_FILL = 1 << 14,
CF_CYCLIC = 31 << 15,
CF_DIHEDRAL = 1 << 15,
CF_P11G = 2 << 15,
CF_P11M = 3 << 15,
CF_P1M1 = 4 << 15,
CF_P2 = 30 << 15,
CF_P2MG = 6 << 15,
CF_P2MM = 7 << 15,
CF_PM = 8 << 15,
CF_PG = 9 << 15,
CF_CM = 10 << 15,
CF_PMM = 11 << 15,
CF_PMG = 12 << 15,
CF_PGG = 13 << 15,
CF_CMM = 14 << 15,
CF_P4 = 15 << 15,
CF_P4M = 16 << 15,
CF_P4G = 17 << 15,
CF_P3 = 18 << 15,
CF_P3M1 = 19 << 15,
CF_P31M = 20 << 15,
CF_P6 = 21 << 15,
CF_P6M = 22 << 15,
CF_CLEAR = (1 << 20) | (agg::comp_op_e::comp_op_clear << 21),
CF_SRC_OVER = (1 << 20) | (agg::comp_op_e::comp_op_src_over << 21),
CF_XOR = (1 << 20) | (agg::comp_op_e::comp_op_xor << 21),
CF_PLUS = (1 << 20) | (agg::comp_op_e::comp_op_plus << 21),
CF_MULTIPLY = (1 << 20) | (agg::comp_op_e::comp_op_multiply << 21),
CF_SCREEN = (1 << 20) | (agg::comp_op_e::comp_op_screen << 21),
CF_OVERLAY = (1 << 20) | (agg::comp_op_e::comp_op_overlay << 21),
CF_DARKEN = (1 << 20) | (agg::comp_op_e::comp_op_darken << 21),
CF_LIGHTEN = (1 << 20) | (agg::comp_op_e::comp_op_lighten << 21),
CF_COLOR_DODGE = (1 << 20) | (agg::comp_op_e::comp_op_color_dodge << 21),
CF_COLOR_BURN = (1 << 20) | (agg::comp_op_e::comp_op_color_burn << 21),
CF_HARD_LIGHT = (1 << 20) | (agg::comp_op_e::comp_op_hard_light << 21),
CF_SOFT_LIGHT = (1 << 20) | (agg::comp_op_e::comp_op_soft_light << 21),
CF_DIFFERENCE = (1 << 20) | (agg::comp_op_e::comp_op_difference << 21),
CF_EXCLUSION = (1 << 20) | (agg::comp_op_e::comp_op_exclusion << 21),
};
double CFatof(const char* s);
static constexpr double MaxNatural = 9007199254740992.;
static constexpr double DefaultMiterLimit = 4.0;
static constexpr double DefaultStrokeWidth = 0.1;
Locality_t CombineLocality(Locality_t first, Locality_t second);
enum pathOpEnum {
unknownPathop = -1, MOVETO = 0, MOVEREL, LINETO, LINEREL,
ARCTO, ARCREL, CURVETO, CURVEREL, CLOSEPOLY
};
void addUnique(SymmList& syms, agg::trans_affine& tr);
void processDihedral(SymmList& syms, double order, double x, double y,
bool dihedral, double angle, const yy::location& where);
void processSymmSpec(SymmList& syms, agg::trans_affine& tile, bool tiled,
std::vector<double>& data, const yy::location& where);
std::vector<const ASTmodification*>
getTransforms(const ASTexpression* e, SymmList& syms,
RendererAST* r, bool tiled, agg::trans_affine& tile);
}
#endif // INCLUDE_AST_H
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