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while.tab.hh
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// A Bison parser, made by GNU Bison 3.3.2.
// Skeleton interface for Bison LALR(1) parsers in C++
// Copyright (C) 2002-2015, 2018-2019 Free Software Foundation, Inc.
// 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 3 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, see <http://www.gnu.org/licenses/>.
// As a special exception, you may create a larger work that contains
// part or all of the Bison parser skeleton and distribute that work
// under terms of your choice, so long as that work isn't itself a
// parser generator using the skeleton or a modified version thereof
// as a parser skeleton. Alternatively, if you modify or redistribute
// the parser skeleton itself, you may (at your option) remove this
// special exception, which will cause the skeleton and the resulting
// Bison output files to be licensed under the GNU General Public
// License without this special exception.
// This special exception was added by the Free Software Foundation in
// version 2.2 of Bison.
/**
** \file while.tab.hh
** Define the yy::parser class.
*/
// C++ LALR(1) parser skeleton written by Akim Demaille.
// Undocumented macros, especially those whose name start with YY_,
// are private implementation details. Do not rely on them.
#ifndef YY_YY_WHILE_TAB_HH_INCLUDED
# define YY_YY_WHILE_TAB_HH_INCLUDED
# include <cstdlib> // std::abort
# include <iostream>
# include <stdexcept>
# include <string>
# include <vector>
#if defined __cplusplus
# define YY_CPLUSPLUS __cplusplus
#else
# define YY_CPLUSPLUS 199711L
#endif
// Support move semantics when possible.
#if 201103L <= YY_CPLUSPLUS
# define YY_MOVE std::move
# define YY_MOVE_OR_COPY move
# define YY_MOVE_REF(Type) Type&&
# define YY_RVREF(Type) Type&&
# define YY_COPY(Type) Type
#else
# define YY_MOVE
# define YY_MOVE_OR_COPY copy
# define YY_MOVE_REF(Type) Type&
# define YY_RVREF(Type) const Type&
# define YY_COPY(Type) const Type&
#endif
// Support noexcept when possible.
#if 201103L <= YY_CPLUSPLUS
# define YY_NOEXCEPT noexcept
# define YY_NOTHROW
#else
# define YY_NOEXCEPT
# define YY_NOTHROW throw ()
#endif
// Support constexpr when possible.
#if 201703 <= YY_CPLUSPLUS
# define YY_CONSTEXPR constexpr
#else
# define YY_CONSTEXPR
#endif
# include "location.hh"
#ifndef YYASSERT
# include <cassert>
# define YYASSERT assert
#endif
#ifndef YY_ATTRIBUTE
# if (defined __GNUC__ \
&& (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__))) \
|| defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
# define YY_ATTRIBUTE(Spec) __attribute__(Spec)
# else
# define YY_ATTRIBUTE(Spec) /* empty */
# endif
#endif
#ifndef YY_ATTRIBUTE_PURE
# define YY_ATTRIBUTE_PURE YY_ATTRIBUTE ((__pure__))
#endif
#ifndef YY_ATTRIBUTE_UNUSED
# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
#endif
/* Suppress unused-variable warnings by "using" E. */
#if ! defined lint || defined __GNUC__
# define YYUSE(E) ((void) (E))
#else
# define YYUSE(E) /* empty */
#endif
#if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
/* Suppress an incorrect diagnostic about yylval being uninitialized. */
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
_Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
_Pragma ("GCC diagnostic pop")
#else
# define YY_INITIAL_VALUE(Value) Value
#endif
#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_END
#endif
#ifndef YY_INITIAL_VALUE
# define YY_INITIAL_VALUE(Value) /* Nothing. */
#endif
# ifndef YY_NULLPTR
# if defined __cplusplus
# if 201103L <= __cplusplus
# define YY_NULLPTR nullptr
# else
# define YY_NULLPTR 0
# endif
# else
# define YY_NULLPTR ((void*)0)
# endif
# endif
/* Debug traces. */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif
namespace yy {
#line 162 "while.tab.hh" // lalr1.cc:401
/// A Bison parser.
class parser
{
public:
#ifndef YYSTYPE
/// A buffer to store and retrieve objects.
///
/// Sort of a variant, but does not keep track of the nature
/// of the stored data, since that knowledge is available
/// via the current parser state.
class semantic_type
{
public:
/// Type of *this.
typedef semantic_type self_type;
/// Empty construction.
semantic_type () YY_NOEXCEPT
: yybuffer_ ()
{}
/// Construct and fill.
template <typename T>
semantic_type (YY_RVREF (T) t)
{
YYASSERT (sizeof (T) <= size);
new (yyas_<T> ()) T (YY_MOVE (t));
}
/// Destruction, allowed only if empty.
~semantic_type () YY_NOEXCEPT
{}
# if 201103L <= YY_CPLUSPLUS
/// Instantiate a \a T in here from \a t.
template <typename T, typename... U>
T&
emplace (U&&... u)
{
return *new (yyas_<T> ()) T (std::forward <U>(u)...);
}
# else
/// Instantiate an empty \a T in here.
template <typename T>
T&
emplace ()
{
return *new (yyas_<T> ()) T ();
}
/// Instantiate a \a T in here from \a t.
template <typename T>
T&
emplace (const T& t)
{
return *new (yyas_<T> ()) T (t);
}
# endif
/// Instantiate an empty \a T in here.
/// Obsolete, use emplace.
template <typename T>
T&
build ()
{
return emplace<T> ();
}
/// Instantiate a \a T in here from \a t.
/// Obsolete, use emplace.
template <typename T>
T&
build (const T& t)
{
return emplace<T> (t);
}
/// Accessor to a built \a T.
template <typename T>
T&
as () YY_NOEXCEPT
{
return *yyas_<T> ();
}
/// Const accessor to a built \a T (for %printer).
template <typename T>
const T&
as () const YY_NOEXCEPT
{
return *yyas_<T> ();
}
/// Swap the content with \a that, of same type.
///
/// Both variants must be built beforehand, because swapping the actual
/// data requires reading it (with as()), and this is not possible on
/// unconstructed variants: it would require some dynamic testing, which
/// should not be the variant's responsibility.
/// Swapping between built and (possibly) non-built is done with
/// self_type::move ().
template <typename T>
void
swap (self_type& that) YY_NOEXCEPT
{
std::swap (as<T> (), that.as<T> ());
}
/// Move the content of \a that to this.
///
/// Destroys \a that.
template <typename T>
void
move (self_type& that)
{
# if 201103L <= YY_CPLUSPLUS
emplace<T> (std::move (that.as<T> ()));
# else
emplace<T> ();
swap<T> (that);
# endif
that.destroy<T> ();
}
# if 201103L <= YY_CPLUSPLUS
/// Move the content of \a that to this.
template <typename T>
void
move (self_type&& that)
{
emplace<T> (std::move (that.as<T> ()));
that.destroy<T> ();
}
#endif
/// Copy the content of \a that to this.
template <typename T>
void
copy (const self_type& that)
{
emplace<T> (that.as<T> ());
}
/// Destroy the stored \a T.
template <typename T>
void
destroy ()
{
as<T> ().~T ();
}
private:
/// Prohibit blind copies.
self_type& operator= (const self_type&);
semantic_type (const self_type&);
/// Accessor to raw memory as \a T.
template <typename T>
T*
yyas_ () YY_NOEXCEPT
{
void *yyp = yybuffer_.yyraw;
return static_cast<T*> (yyp);
}
/// Const accessor to raw memory as \a T.
template <typename T>
const T*
yyas_ () const YY_NOEXCEPT
{
const void *yyp = yybuffer_.yyraw;
return static_cast<const T*> (yyp);
}
/// An auxiliary type to compute the largest semantic type.
union union_type
{
// expression
char dummy1[sizeof (expression*)];
// command
char dummy2[sizeof (instruction*)];
// expressions
char dummy3[sizeof (std::list<expression*>* )];
// commands
char dummy4[sizeof (std::list<instruction*>* )];
// ids
char dummy5[sizeof (std::list<std::string>* )];
// ID
// NUM
char dummy6[sizeof (std::string)];
};
/// The size of the largest semantic type.
enum { size = sizeof (union_type) };
/// A buffer to store semantic values.
union
{
/// Strongest alignment constraints.
long double yyalign_me;
/// A buffer large enough to store any of the semantic values.
char yyraw[size];
} yybuffer_;
};
#else
typedef YYSTYPE semantic_type;
#endif
/// Symbol locations.
typedef location location_type;
/// Syntax errors thrown from user actions.
struct syntax_error : std::runtime_error
{
syntax_error (const location_type& l, const std::string& m)
: std::runtime_error (m)
, location (l)
{}
syntax_error (const syntax_error& s)
: std::runtime_error (s.what ())
, location (s.location)
{}
~syntax_error () YY_NOEXCEPT YY_NOTHROW;
location_type location;
};
/// Tokens.
struct token
{
enum yytokentype
{
PRG = 258,
BEG = 259,
END = 260,
BOO = 261,
NAT = 262,
REA = 263,
WRI = 264,
IF = 265,
THE = 266,
ELS = 267,
EIF = 268,
WHI = 269,
DO = 270,
DON = 271,
TRU = 272,
FAL = 273,
ASN = 274,
OP = 275,
CL = 276,
COL = 277,
QUE = 278,
FOR = 279,
TO = 280,
COM = 281,
ID = 282,
NUM = 283,
OR = 284,
AND = 285,
EQ = 286,
LS = 287,
GR = 288,
LSE = 289,
GRE = 290,
ADD = 291,
SUB = 292,
MUL = 293,
DIV = 294,
MOD = 295,
NOT = 296
};
};
/// (External) token type, as returned by yylex.
typedef token::yytokentype token_type;
/// Symbol type: an internal symbol number.
typedef int symbol_number_type;
/// The symbol type number to denote an empty symbol.
enum { empty_symbol = -2 };
/// Internal symbol number for tokens (subsumed by symbol_number_type).
typedef unsigned char token_number_type;
/// A complete symbol.
///
/// Expects its Base type to provide access to the symbol type
/// via type_get ().
///
/// Provide access to semantic value and location.
template <typename Base>
struct basic_symbol : Base
{
/// Alias to Base.
typedef Base super_type;
/// Default constructor.
basic_symbol ()
: value ()
, location ()
{}
#if 201103L <= YY_CPLUSPLUS
/// Move constructor.
basic_symbol (basic_symbol&& that);
#endif
/// Copy constructor.
basic_symbol (const basic_symbol& that);
/// Constructor for valueless symbols, and symbols from each type.
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, location_type&& l)
: Base (t)
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const location_type& l)
: Base (t)
, location (l)
{}
#endif
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, expression*&& v, location_type&& l)
: Base (t)
, value (std::move (v))
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const expression*& v, const location_type& l)
: Base (t)
, value (v)
, location (l)
{}
#endif
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, instruction*&& v, location_type&& l)
: Base (t)
, value (std::move (v))
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const instruction*& v, const location_type& l)
: Base (t)
, value (v)
, location (l)
{}
#endif
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, std::list<expression*>* && v, location_type&& l)
: Base (t)
, value (std::move (v))
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const std::list<expression*>* & v, const location_type& l)
: Base (t)
, value (v)
, location (l)
{}
#endif
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, std::list<instruction*>* && v, location_type&& l)
: Base (t)
, value (std::move (v))
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const std::list<instruction*>* & v, const location_type& l)
: Base (t)
, value (v)
, location (l)
{}
#endif
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, std::list<std::string>* && v, location_type&& l)
: Base (t)
, value (std::move (v))
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const std::list<std::string>* & v, const location_type& l)
: Base (t)
, value (v)
, location (l)
{}
#endif
#if 201103L <= YY_CPLUSPLUS
basic_symbol (typename Base::kind_type t, std::string&& v, location_type&& l)
: Base (t)
, value (std::move (v))
, location (std::move (l))
{}
#else
basic_symbol (typename Base::kind_type t, const std::string& v, const location_type& l)
: Base (t)
, value (v)
, location (l)
{}
#endif
/// Destroy the symbol.
~basic_symbol ()
{
clear ();
}
/// Destroy contents, and record that is empty.
void clear ()
{
// User destructor.
symbol_number_type yytype = this->type_get ();
basic_symbol<Base>& yysym = *this;
(void) yysym;
switch (yytype)
{
default:
break;
}
// Type destructor.
switch (yytype)
{
case 50: // expression
value.template destroy< expression* > ();
break;
case 49: // command
value.template destroy< instruction* > ();
break;
case 48: // expressions
value.template destroy< std::list<expression*>* > ();
break;
case 46: // commands
value.template destroy< std::list<instruction*>* > ();
break;
case 47: // ids
value.template destroy< std::list<std::string>* > ();
break;
case 27: // ID
case 28: // NUM
value.template destroy< std::string > ();
break;
default:
break;
}
Base::clear ();
}
/// Whether empty.
bool empty () const YY_NOEXCEPT;
/// Destructive move, \a s is emptied into this.
void move (basic_symbol& s);
/// The semantic value.
semantic_type value;
/// The location.
location_type location;
private:
#if YY_CPLUSPLUS < 201103L
/// Assignment operator.
basic_symbol& operator= (const basic_symbol& that);
#endif
};
/// Type access provider for token (enum) based symbols.
struct by_type
{
/// Default constructor.
by_type ();
#if 201103L <= YY_CPLUSPLUS
/// Move constructor.
by_type (by_type&& that);
#endif
/// Copy constructor.
by_type (const by_type& that);
/// The symbol type as needed by the constructor.
typedef token_type kind_type;
/// Constructor from (external) token numbers.
by_type (kind_type t);
/// Record that this symbol is empty.
void clear ();
/// Steal the symbol type from \a that.
void move (by_type& that);
/// The (internal) type number (corresponding to \a type).
/// \a empty when empty.
symbol_number_type type_get () const YY_NOEXCEPT;
/// The token.
token_type token () const YY_NOEXCEPT;
/// The symbol type.
/// \a empty_symbol when empty.
/// An int, not token_number_type, to be able to store empty_symbol.
int type;
};
/// "External" symbols: returned by the scanner.
struct symbol_type : basic_symbol<by_type>
{
/// Superclass.
typedef basic_symbol<by_type> super_type;
/// Empty symbol.
symbol_type () {}
/// Constructor for valueless symbols, and symbols from each type.
#if 201103L <= YY_CPLUSPLUS
symbol_type (int tok, location_type l)
: super_type(token_type (tok), std::move (l))
{
YYASSERT (tok == 0 || tok == token::PRG || tok == token::BEG || tok == token::END || tok == token::BOO || tok == token::NAT || tok == token::REA || tok == token::WRI || tok == token::IF || tok == token::THE || tok == token::ELS || tok == token::EIF || tok == token::WHI || tok == token::DO || tok == token::DON || tok == token::TRU || tok == token::FAL || tok == token::ASN || tok == token::OP || tok == token::CL || tok == token::COL || tok == token::QUE || tok == token::FOR || tok == token::TO || tok == token::COM || tok == token::OR || tok == token::AND || tok == token::EQ || tok == token::LS || tok == token::GR || tok == token::LSE || tok == token::GRE || tok == token::ADD || tok == token::SUB || tok == token::MUL || tok == token::DIV || tok == token::MOD || tok == token::NOT);
}
#else
symbol_type (int tok, const location_type& l)
: super_type(token_type (tok), l)
{
YYASSERT (tok == 0 || tok == token::PRG || tok == token::BEG || tok == token::END || tok == token::BOO || tok == token::NAT || tok == token::REA || tok == token::WRI || tok == token::IF || tok == token::THE || tok == token::ELS || tok == token::EIF || tok == token::WHI || tok == token::DO || tok == token::DON || tok == token::TRU || tok == token::FAL || tok == token::ASN || tok == token::OP || tok == token::CL || tok == token::COL || tok == token::QUE || tok == token::FOR || tok == token::TO || tok == token::COM || tok == token::OR || tok == token::AND || tok == token::EQ || tok == token::LS || tok == token::GR || tok == token::LSE || tok == token::GRE || tok == token::ADD || tok == token::SUB || tok == token::MUL || tok == token::DIV || tok == token::MOD || tok == token::NOT);
}
#endif
#if 201103L <= YY_CPLUSPLUS
symbol_type (int tok, std::string v, location_type l)
: super_type(token_type (tok), std::move (v), std::move (l))
{
YYASSERT (tok == token::ID || tok == token::NUM);
}
#else
symbol_type (int tok, const std::string& v, const location_type& l)
: super_type(token_type (tok), v, l)
{
YYASSERT (tok == token::ID || tok == token::NUM);
}
#endif
};
/// Build a parser object.
parser ();
virtual ~parser ();
/// Parse. An alias for parse ().
/// \returns 0 iff parsing succeeded.
int operator() ();
/// Parse.
/// \returns 0 iff parsing succeeded.
virtual int parse ();
#if YYDEBUG
/// The current debugging stream.
std::ostream& debug_stream () const YY_ATTRIBUTE_PURE;
/// Set the current debugging stream.
void set_debug_stream (std::ostream &);
/// Type for debugging levels.
typedef int debug_level_type;
/// The current debugging level.
debug_level_type debug_level () const YY_ATTRIBUTE_PURE;
/// Set the current debugging level.
void set_debug_level (debug_level_type l);
#endif
/// Report a syntax error.
/// \param loc where the syntax error is found.
/// \param msg a description of the syntax error.
virtual void error (const location_type& loc, const std::string& msg);
/// Report a syntax error.
void error (const syntax_error& err);
// Implementation of make_symbol for each symbol type.
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_PRG (location_type l)
{
return symbol_type (token::PRG, std::move (l));
}
#else
static
symbol_type
make_PRG (const location_type& l)
{
return symbol_type (token::PRG, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_BEG (location_type l)
{
return symbol_type (token::BEG, std::move (l));
}
#else
static
symbol_type
make_BEG (const location_type& l)
{
return symbol_type (token::BEG, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_END (location_type l)
{
return symbol_type (token::END, std::move (l));
}
#else
static
symbol_type
make_END (const location_type& l)
{
return symbol_type (token::END, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_BOO (location_type l)
{
return symbol_type (token::BOO, std::move (l));
}
#else
static
symbol_type
make_BOO (const location_type& l)
{
return symbol_type (token::BOO, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_NAT (location_type l)
{
return symbol_type (token::NAT, std::move (l));
}
#else
static
symbol_type
make_NAT (const location_type& l)
{
return symbol_type (token::NAT, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_REA (location_type l)
{
return symbol_type (token::REA, std::move (l));
}
#else
static
symbol_type
make_REA (const location_type& l)
{
return symbol_type (token::REA, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_WRI (location_type l)
{
return symbol_type (token::WRI, std::move (l));
}
#else
static
symbol_type
make_WRI (const location_type& l)
{
return symbol_type (token::WRI, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_IF (location_type l)
{
return symbol_type (token::IF, std::move (l));
}
#else
static
symbol_type
make_IF (const location_type& l)
{
return symbol_type (token::IF, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_THE (location_type l)
{
return symbol_type (token::THE, std::move (l));
}
#else
static
symbol_type
make_THE (const location_type& l)
{
return symbol_type (token::THE, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_ELS (location_type l)
{
return symbol_type (token::ELS, std::move (l));
}
#else
static
symbol_type
make_ELS (const location_type& l)
{
return symbol_type (token::ELS, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_EIF (location_type l)
{
return symbol_type (token::EIF, std::move (l));
}
#else
static
symbol_type
make_EIF (const location_type& l)
{
return symbol_type (token::EIF, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_WHI (location_type l)
{
return symbol_type (token::WHI, std::move (l));
}
#else
static
symbol_type
make_WHI (const location_type& l)
{
return symbol_type (token::WHI, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_DO (location_type l)
{
return symbol_type (token::DO, std::move (l));
}
#else
static
symbol_type
make_DO (const location_type& l)
{
return symbol_type (token::DO, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_DON (location_type l)
{
return symbol_type (token::DON, std::move (l));
}
#else
static
symbol_type
make_DON (const location_type& l)
{
return symbol_type (token::DON, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_TRU (location_type l)
{
return symbol_type (token::TRU, std::move (l));
}
#else
static
symbol_type
make_TRU (const location_type& l)
{
return symbol_type (token::TRU, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_FAL (location_type l)
{
return symbol_type (token::FAL, std::move (l));
}
#else
static
symbol_type
make_FAL (const location_type& l)
{
return symbol_type (token::FAL, l);
}
#endif
#if 201103L <= YY_CPLUSPLUS