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sqlparser.hh
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sqlparser.hh
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// A Bison parser, made by GNU Bison 3.0.4.
// Skeleton interface for Bison LALR(1) parsers in C++
// Copyright (C) 2002-2015 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 sqlparser.hh
** Define the yy::parser class.
*/
// C++ LALR(1) parser skeleton written by Akim Demaille.
#ifndef YY_YY_SQLPARSER_HH_INCLUDED
# define YY_YY_SQLPARSER_HH_INCLUDED
// // "%code requires" blocks.
#line 9 "sqlparser.yy" // lalr1.cc:392
#include <iostream>
#include <string>
#include <vector>
#include <sstream>
#include "sqlstruct.h"
class sqlparser_driver;
void emit(char *s,...);
std::string itostr(int value);
std::string ftostr(float value);
#line 56 "sqlparser.hh" // lalr1.cc:392
# include <cassert>
# include <cstdlib> // std::abort
# include <iostream>
# include <stdexcept>
# include <string>
# include <vector>
# include "stack.hh"
# include "location.hh"
#include <typeinfo>
#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
#if !defined _Noreturn \
&& (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
# if defined _MSC_VER && 1200 <= _MSC_VER
# define _Noreturn __declspec (noreturn)
# else
# define _Noreturn YY_ATTRIBUTE ((__noreturn__))
# endif
#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__ && 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
/* Debug traces. */
#ifndef YYDEBUG
# define YYDEBUG 1
#endif
namespace yy {
#line 133 "sqlparser.hh" // lalr1.cc:392
/// A char[S] 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 state.
template <size_t S>
struct variant
{
/// Type of *this.
typedef variant<S> self_type;
/// Empty construction.
variant ()
: yytypeid_ (YY_NULLPTR)
{}
/// Construct and fill.
template <typename T>
variant (const T& t)
: yytypeid_ (&typeid (T))
{
YYASSERT (sizeof (T) <= S);
new (yyas_<T> ()) T (t);
}
/// Destruction, allowed only if empty.
~variant ()
{
YYASSERT (!yytypeid_);
}
/// Instantiate an empty \a T in here.
template <typename T>
T&
build ()
{
YYASSERT (!yytypeid_);
YYASSERT (sizeof (T) <= S);
yytypeid_ = & typeid (T);
return *new (yyas_<T> ()) T;
}
/// Instantiate a \a T in here from \a t.
template <typename T>
T&
build (const T& t)
{
YYASSERT (!yytypeid_);
YYASSERT (sizeof (T) <= S);
yytypeid_ = & typeid (T);
return *new (yyas_<T> ()) T (t);
}
/// Accessor to a built \a T.
template <typename T>
T&
as ()
{
YYASSERT (*yytypeid_ == typeid (T));
YYASSERT (sizeof (T) <= S);
return *yyas_<T> ();
}
/// Const accessor to a built \a T (for %printer).
template <typename T>
const T&
as () const
{
YYASSERT (*yytypeid_ == typeid (T));
YYASSERT (sizeof (T) <= S);
return *yyas_<T> ();
}
/// Swap the content with \a other, 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 responsability.
/// Swapping between built and (possibly) non-built is done with
/// variant::move ().
template <typename T>
void
swap (self_type& other)
{
YYASSERT (yytypeid_);
YYASSERT (*yytypeid_ == *other.yytypeid_);
std::swap (as<T> (), other.as<T> ());
}
/// Move the content of \a other to this.
///
/// Destroys \a other.
template <typename T>
void
move (self_type& other)
{
build<T> ();
swap<T> (other);
other.destroy<T> ();
}
/// Copy the content of \a other to this.
template <typename T>
void
copy (const self_type& other)
{
build<T> (other.as<T> ());
}
/// Destroy the stored \a T.
template <typename T>
void
destroy ()
{
as<T> ().~T ();
yytypeid_ = YY_NULLPTR;
}
private:
/// Prohibit blind copies.
self_type& operator=(const self_type&);
variant (const self_type&);
/// Accessor to raw memory as \a T.
template <typename T>
T*
yyas_ ()
{
void *yyp = yybuffer_.yyraw;
return static_cast<T*> (yyp);
}
/// Const accessor to raw memory as \a T.
template <typename T>
const T*
yyas_ () const
{
const void *yyp = yybuffer_.yyraw;
return static_cast<const T*> (yyp);
}
union
{
/// Strongest alignment constraints.
long double yyalign_me;
/// A buffer large enough to store any of the semantic values.
char yyraw[S];
} yybuffer_;
/// Whether the content is built: if defined, the name of the stored type.
const std::type_info *yytypeid_;
};
/// A Bison parser.
class sqlparser
{
public:
#ifndef YYSTYPE
/// An auxiliary type to compute the largest semantic type.
union union_type
{
// FLOATNUM
// floatexp
char dummy1[sizeof(float)];
// INTNUM
// DEFAULT
// AUTO_INCREMENT
// NULLX
// UNIQUE
// PRIMARY
// COMPARISON
// intexp
// opt_length
// data_type
char dummy2[sizeof(int)];
// expr
// opt_where
char dummy3[sizeof(sqlstruct::astree*)];
// create_col_list
char dummy4[sizeof(sqlstruct::create_col_list)];
// create_index_stmt
char dummy5[sizeof(sqlstruct::createindex)];
// create_table_stmt
char dummy6[sizeof(sqlstruct::createtable)];
// delete_stmt
char dummy7[sizeof(sqlstruct::deletetable)];
// insert_stmt
char dummy8[sizeof(sqlstruct::insertvalues)];
// create_definition
char dummy9[sizeof(sqlstruct::record_t)];
// select_stmt
char dummy10[sizeof(sqlstruct::selecttable)];
// NAME
// STRING
// drop_table_stmt
// drop_index_stmt
// filename
// execfile_stmt
char dummy11[sizeof(std::string)];
// column_atts
char dummy12[sizeof(std::vector<sqlstruct::col_attr>)];
// insert_vals
char dummy13[sizeof(std::vector<sqlstruct::insertitem>)];
// column_list
// select_expr_list
char dummy14[sizeof(std::vector<std::string>)];
};
/// Symbol semantic values.
typedef variant<sizeof(union_type)> semantic_type;
#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);
location_type location;
};
/// Tokens.
struct token
{
enum yytokentype
{
END = 0,
NAME = 258,
STRING = 259,
INTNUM = 260,
FLOATNUM = 261,
ADD = 262,
ALL = 263,
ALTER = 264,
AND = 265,
AS = 266,
KEY = 267,
DELETE = 268,
DROP = 269,
QUIT = 270,
EXECFILE = 271,
ON = 272,
CREATE = 273,
INDEX = 274,
FROM = 275,
UPDATE = 276,
DEFAULT = 277,
AUTO_INCREMENT = 278,
EXISTS = 279,
TABLE = 280,
CHAR = 281,
SELECT = 282,
SET = 283,
NULLX = 284,
INT = 285,
FLOAT = 286,
VALUES = 287,
DISTINCT = 288,
WHERE = 289,
UNIQUE = 290,
INSERT = 291,
PRIMARY = 292,
INTO = 293,
MINUS = 294,
PLUS = 295,
STAR = 296,
SLASH = 297,
LPAREN = 298,
RPAREN = 299,
COMMA = 300,
SINGLEAND = 301,
SYMBOLNOT = 302,
SEMICOL = 303,
POINT = 304,
ASSIGN = 305,
OR = 306,
XOR = 307,
ANDOP = 308,
IN = 309,
IS = 310,
LIKE = 311,
NOT = 312,
BETWEEN = 313,
COMPARISON = 314,
UMINUS = 316
};
};
/// (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 ();
/// Copy constructor.
basic_symbol (const basic_symbol& other);
/// Constructor for valueless symbols, and symbols from each type.
basic_symbol (typename Base::kind_type t, const location_type& l);
basic_symbol (typename Base::kind_type t, const float v, const location_type& l);
basic_symbol (typename Base::kind_type t, const int v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::astree* v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::create_col_list v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::createindex v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::createtable v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::deletetable v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::insertvalues v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::record_t v, const location_type& l);
basic_symbol (typename Base::kind_type t, const sqlstruct::selecttable v, const location_type& l);
basic_symbol (typename Base::kind_type t, const std::string v, const location_type& l);
basic_symbol (typename Base::kind_type t, const std::vector<sqlstruct::col_attr> v, const location_type& l);
basic_symbol (typename Base::kind_type t, const std::vector<sqlstruct::insertitem> v, const location_type& l);
basic_symbol (typename Base::kind_type t, const std::vector<std::string> v, const location_type& l);
/// Constructor for symbols with semantic value.
basic_symbol (typename Base::kind_type t,
const semantic_type& v,
const location_type& l);
/// Destroy the symbol.
~basic_symbol ();
/// Destroy contents, and record that is empty.
void clear ();
/// Whether empty.
bool empty () const;
/// 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:
/// Assignment operator.
basic_symbol& operator= (const basic_symbol& other);
};
/// Type access provider for token (enum) based symbols.
struct by_type
{
/// Default constructor.
by_type ();
/// Copy constructor.
by_type (const by_type& other);
/// 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;
/// The token.
token_type token () const;
/// 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.
typedef basic_symbol<by_type> symbol_type;
// Symbol constructors declarations.
static inline
symbol_type
make_END (const location_type& l);
static inline
symbol_type
make_NAME (const std::string& v, const location_type& l);
static inline
symbol_type
make_STRING (const std::string& v, const location_type& l);
static inline
symbol_type
make_INTNUM (const int& v, const location_type& l);
static inline
symbol_type
make_FLOATNUM (const float& v, const location_type& l);
static inline
symbol_type
make_ADD (const location_type& l);
static inline
symbol_type
make_ALL (const location_type& l);
static inline
symbol_type
make_ALTER (const location_type& l);
static inline
symbol_type
make_AND (const location_type& l);
static inline
symbol_type
make_AS (const location_type& l);
static inline
symbol_type
make_KEY (const location_type& l);
static inline
symbol_type
make_DELETE (const location_type& l);
static inline
symbol_type
make_DROP (const location_type& l);
static inline
symbol_type
make_QUIT (const location_type& l);
static inline
symbol_type
make_EXECFILE (const location_type& l);
static inline
symbol_type
make_ON (const location_type& l);
static inline
symbol_type
make_CREATE (const location_type& l);
static inline
symbol_type
make_INDEX (const location_type& l);
static inline
symbol_type
make_FROM (const location_type& l);
static inline
symbol_type
make_UPDATE (const location_type& l);
static inline
symbol_type
make_DEFAULT (const int& v, const location_type& l);
static inline
symbol_type
make_AUTO_INCREMENT (const int& v, const location_type& l);
static inline
symbol_type
make_EXISTS (const location_type& l);
static inline
symbol_type
make_TABLE (const location_type& l);
static inline
symbol_type
make_CHAR (const location_type& l);
static inline
symbol_type
make_SELECT (const location_type& l);
static inline
symbol_type
make_SET (const location_type& l);
static inline
symbol_type
make_NULLX (const int& v, const location_type& l);
static inline
symbol_type
make_INT (const location_type& l);
static inline
symbol_type
make_FLOAT (const location_type& l);
static inline
symbol_type
make_VALUES (const location_type& l);
static inline
symbol_type
make_DISTINCT (const location_type& l);
static inline
symbol_type
make_WHERE (const location_type& l);
static inline
symbol_type
make_UNIQUE (const int& v, const location_type& l);
static inline
symbol_type
make_INSERT (const location_type& l);
static inline
symbol_type
make_PRIMARY (const int& v, const location_type& l);
static inline
symbol_type
make_INTO (const location_type& l);
static inline
symbol_type
make_MINUS (const location_type& l);
static inline
symbol_type
make_PLUS (const location_type& l);
static inline
symbol_type
make_STAR (const location_type& l);
static inline
symbol_type
make_SLASH (const location_type& l);
static inline
symbol_type
make_LPAREN (const location_type& l);
static inline
symbol_type
make_RPAREN (const location_type& l);
static inline
symbol_type
make_COMMA (const location_type& l);
static inline
symbol_type
make_SINGLEAND (const location_type& l);
static inline
symbol_type
make_SYMBOLNOT (const location_type& l);
static inline
symbol_type
make_SEMICOL (const location_type& l);
static inline
symbol_type
make_POINT (const location_type& l);
static inline
symbol_type
make_ASSIGN (const location_type& l);
static inline
symbol_type
make_OR (const location_type& l);
static inline
symbol_type
make_XOR (const location_type& l);
static inline
symbol_type
make_ANDOP (const location_type& l);
static inline
symbol_type
make_IN (const location_type& l);
static inline
symbol_type
make_IS (const location_type& l);
static inline
symbol_type
make_LIKE (const location_type& l);
static inline
symbol_type
make_NOT (const location_type& l);
static inline
symbol_type
make_BETWEEN (const location_type& l);
static inline
symbol_type
make_COMPARISON (const int& v, const location_type& l);
static inline
symbol_type
make_UMINUS (const location_type& l);
/// Build a parser object.
sqlparser (sqlparser_driver &driver_yyarg);
virtual ~sqlparser ();
/// 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);
private:
/// This class is not copyable.
sqlparser (const sqlparser&);
sqlparser& operator= (const sqlparser&);
/// State numbers.
typedef int state_type;
/// Generate an error message.
/// \param yystate the state where the error occurred.
/// \param yyla the lookahead token.
virtual std::string yysyntax_error_ (state_type yystate,
const symbol_type& yyla) const;
/// Compute post-reduction state.
/// \param yystate the current state
/// \param yysym the nonterminal to push on the stack
state_type yy_lr_goto_state_ (state_type yystate, int yysym);
/// Whether the given \c yypact_ value indicates a defaulted state.
/// \param yyvalue the value to check
static bool yy_pact_value_is_default_ (int yyvalue);
/// Whether the given \c yytable_ value indicates a syntax error.
/// \param yyvalue the value to check
static bool yy_table_value_is_error_ (int yyvalue);
static const signed char yypact_ninf_;
static const signed char yytable_ninf_;
/// Convert a scanner token number \a t to a symbol number.
static token_number_type yytranslate_ (token_type t);
// Tables.
// YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
// STATE-NUM.
static const short int yypact_[];
// YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
// Performed when YYTABLE does not specify something else to do. Zero
// means the default is an error.
static const unsigned char yydefact_[];
// YYPGOTO[NTERM-NUM].
static const short int yypgoto_[];
// YYDEFGOTO[NTERM-NUM].
static const short int yydefgoto_[];
// YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If
// positive, shift that token. If negative, reduce the rule whose
// number is the opposite. If YYTABLE_NINF, syntax error.
static const unsigned char yytable_[];
static const unsigned char yycheck_[];
// YYSTOS[STATE-NUM] -- The (internal number of the) accessing
// symbol of state STATE-NUM.
static const unsigned char yystos_[];
// YYR1[YYN] -- Symbol number of symbol that rule YYN derives.
static const unsigned char yyr1_[];
// YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.
static const unsigned char yyr2_[];
/// Convert the symbol name \a n to a form suitable for a diagnostic.
static std::string yytnamerr_ (const char *n);
/// For a symbol, its name in clear.
static const char* const yytname_[];
#if YYDEBUG
// YYRLINE[YYN] -- Source line where rule number YYN was defined.
static const unsigned short int yyrline_[];
/// Report on the debug stream that the rule \a r is going to be reduced.
virtual void yy_reduce_print_ (int r);
/// Print the state stack on the debug stream.
virtual void yystack_print_ ();
// Debugging.
int yydebug_;
std::ostream* yycdebug_;
/// \brief Display a symbol type, value and location.
/// \param yyo The output stream.
/// \param yysym The symbol.
template <typename Base>
void yy_print_ (std::ostream& yyo, const basic_symbol<Base>& yysym) const;
#endif
/// \brief Reclaim the memory associated to a symbol.
/// \param yymsg Why this token is reclaimed.
/// If null, print nothing.
/// \param yysym The symbol.
template <typename Base>
void yy_destroy_ (const char* yymsg, basic_symbol<Base>& yysym) const;
private:
/// Type access provider for state based symbols.
struct by_state
{
/// Default constructor.
by_state ();
/// The symbol type as needed by the constructor.
typedef state_type kind_type;
/// Constructor.
by_state (kind_type s);
/// Copy constructor.
by_state (const by_state& other);
/// Record that this symbol is empty.
void clear ();
/// Steal the symbol type from \a that.
void move (by_state& that);
/// The (internal) type number (corresponding to \a state).
/// \a empty_symbol when empty.
symbol_number_type type_get () const;
/// The state number used to denote an empty symbol.
enum { empty_state = -1 };
/// The state.
/// \a empty when empty.
state_type state;
};
/// "Internal" symbol: element of the stack.
struct stack_symbol_type : basic_symbol<by_state>
{
/// Superclass.
typedef basic_symbol<by_state> super_type;
/// Construct an empty symbol.
stack_symbol_type ();
/// Steal the contents from \a sym to build this.
stack_symbol_type (state_type s, symbol_type& sym);
/// Assignment, needed by push_back.
stack_symbol_type& operator= (const stack_symbol_type& that);
};
/// Stack type.
typedef stack<stack_symbol_type> stack_type;
/// The stack.
stack_type yystack_;
/// Push a new state on the stack.
/// \param m a debug message to display
/// if null, no trace is output.
/// \param s the symbol
/// \warning the contents of \a s.value is stolen.
void yypush_ (const char* m, stack_symbol_type& s);
/// Push a new look ahead token on the state on the stack.
/// \param m a debug message to display
/// if null, no trace is output.
/// \param s the state
/// \param sym the symbol (for its value and location).