1 // A Bison parser, made by GNU Bison 3.0.5.
2 
3 // Skeleton interface for Bison LALR(1) parsers in C++
4 
5 // Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
6 
7 // This program is free software: you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License as published by
9 // the Free Software Foundation, either version 3 of the License, or
10 // (at your option) any later version.
11 
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 // GNU General Public License for more details.
16 
17 // You should have received a copy of the GNU General Public License
18 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
19 
20 // As a special exception, you may create a larger work that contains
21 // part or all of the Bison parser skeleton and distribute that work
22 // under terms of your choice, so long as that work isn't itself a
23 // parser generator using the skeleton or a modified version thereof
24 // as a parser skeleton.  Alternatively, if you modify or redistribute
25 // the parser skeleton itself, you may (at your option) remove this
26 // special exception, which will cause the skeleton and the resulting
27 // Bison output files to be licensed under the GNU General Public
28 // License without this special exception.
29 
30 // This special exception was added by the Free Software Foundation in
31 // version 2.2 of Bison.
32 
33 /**
34  ** \file parser.tab.hpp
35  ** Define the yy::parser class.
36  */
37 
38 // C++ LALR(1) parser skeleton written by Akim Demaille.
39 
40 #ifndef YY_YY_PARSER_TAB_HPP_INCLUDED
41 # define YY_YY_PARSER_TAB_HPP_INCLUDED
42 // //                    "%code requires" blocks.
43 #line 20 "parser.ypp" // lalr1.cc:394
44 
45 #include <cstdlib>
46 #include <cstring>
47 #include <iostream>
48 #include <sstream>
49 #include <string>
50 
51 #include "Ast.h"
52 
53 using facebook::graphql::ast::Node;
54 using facebook::graphql::ast::Name;
55 using facebook::graphql::ast::Definition;
56 using facebook::graphql::ast::Document;
57 using facebook::graphql::ast::OperationDefinition;
58 using facebook::graphql::ast::VariableDefinition;
59 using facebook::graphql::ast::Variable;
60 using facebook::graphql::ast::SelectionSet;
61 using facebook::graphql::ast::Selection;
62 using facebook::graphql::ast::Field;
63 using facebook::graphql::ast::Argument;
64 using facebook::graphql::ast::FragmentSpread;
65 using facebook::graphql::ast::InlineFragment;
66 using facebook::graphql::ast::FragmentDefinition;
67 using facebook::graphql::ast::Value;
68 using facebook::graphql::ast::IntValue;
69 using facebook::graphql::ast::FloatValue;
70 using facebook::graphql::ast::StringValue;
71 using facebook::graphql::ast::BooleanValue;
72 using facebook::graphql::ast::NullValue;
73 using facebook::graphql::ast::EnumValue;
74 using facebook::graphql::ast::ListValue;
75 using facebook::graphql::ast::ObjectValue;
76 using facebook::graphql::ast::ObjectField;
77 using facebook::graphql::ast::Directive;
78 using facebook::graphql::ast::Type;
79 using facebook::graphql::ast::NamedType;
80 using facebook::graphql::ast::ListType;
81 using facebook::graphql::ast::NonNullType;
82 
83 // Experimental schema support.
84 using facebook::graphql::ast::SchemaDefinition;
85 using facebook::graphql::ast::ScalarTypeDefinition;
86 using facebook::graphql::ast::ObjectTypeDefinition;
87 using facebook::graphql::ast::InterfaceTypeDefinition;
88 using facebook::graphql::ast::UnionTypeDefinition;
89 using facebook::graphql::ast::EnumTypeDefinition;
90 using facebook::graphql::ast::InputObjectTypeDefinition;
91 using facebook::graphql::ast::TypeExtensionDefinition;
92 using facebook::graphql::ast::DirectiveDefinition;
93 using facebook::graphql::ast::SchemaDefinition;
94 using facebook::graphql::ast::OperationTypeDefinition;
95 using facebook::graphql::ast::ScalarTypeDefinition;
96 using facebook::graphql::ast::ObjectTypeDefinition;
97 using facebook::graphql::ast::FieldDefinition;
98 using facebook::graphql::ast::InputValueDefinition;
99 using facebook::graphql::ast::InterfaceTypeDefinition;
100 using facebook::graphql::ast::UnionTypeDefinition;
101 using facebook::graphql::ast::EnumTypeDefinition;
102 using facebook::graphql::ast::EnumValueDefinition;
103 using facebook::graphql::ast::InputObjectTypeDefinition;
104 using facebook::graphql::ast::TypeExtensionDefinition;
105 using facebook::graphql::ast::DirectiveDefinition;
106 
107 union yystype {                                         \
108     const char *str;                                    \
109     const char *heapStr;                                \
110     Name *name;                                         \
111     Definition *definition;                             \
112     Document *document;                                 \
113     OperationDefinition *operationDefinition;           \
114     VariableDefinition *variableDefinition;             \
115     Variable *variable;                                 \
116     SelectionSet *selectionSet;                     \
117     Selection *selection;                           \
118     Field *field;                                   \
119     Argument *argument;                             \
120     FragmentSpread *fragmentSpread;                 \
121     InlineFragment *inlineFragment;                 \
122     FragmentDefinition *fragmentDefinition;         \
123     Value *value;                                   \
124     IntValue *intValue;                             \
125     FloatValue *floatValue;                         \
126     StringValue *stringValue;                       \
127     BooleanValue *booleanValue;                     \
128     NullValue *nullValue;                           \
129     EnumValue *enumValue;                           \
130     ListValue *arrayValue;                          \
131     ObjectValue *objectValue;                       \
132     ObjectField *objectField;                       \
133     Directive *directive;                           \
134     Type *type;                                     \
135     NamedType *namedType;                           \
136     ListType *listType;                             \
137     NonNullType *nonNullType;                       \
138     \
139     std::vector<std::unique_ptr<Definition>> *definitionList;       \
140     std::vector<std::unique_ptr<VariableDefinition>> *variableDefinitionList; \
141     std::vector<std::unique_ptr<Selection>> *selectionList;         \
142     std::vector<std::unique_ptr<Field>> *fieldList;                 \
143     std::vector<std::unique_ptr<Argument>> *argumentList;           \
144     std::vector<std::unique_ptr<Value>> *valueList;                 \
145     std::vector<std::unique_ptr<ObjectField>> *objectFieldList;     \
146     std::vector<std::unique_ptr<Directive>> *directiveList;         \
147                                                                     \
148     SchemaDefinition *schemaDefinition;                             \
149     ScalarTypeDefinition *scalarTypeDefinition;                     \
150     ObjectTypeDefinition *objectTypeDefinition;                     \
151     InterfaceTypeDefinition *interfaceTypeDefinition;               \
152     UnionTypeDefinition *unionTypeDefinition;                       \
153     EnumTypeDefinition *enumTypeDefinition;                         \
154     InputObjectTypeDefinition *inputObjectTypeDefinition;           \
155     TypeExtensionDefinition *typeExtensionDefinition;               \
156     DirectiveDefinition *directiveDefinition;                       \
157     OperationTypeDefinition *operationTypeDefinition;               \
158     InputValueDefinition *inputValueDefinition;                     \
159     FieldDefinition *fieldDefinition;                               \
160     EnumValueDefinition *enumValueDefinition;                       \
161     \
162     std::vector<std::unique_ptr<OperationTypeDefinition>> *operationTypeDefinitionList; \
163     std::vector<std::unique_ptr<NamedType>> *typeNameList;          \
164     std::vector<std::unique_ptr<InputValueDefinition>> *inputValueDefinitionList; \
165     std::vector<std::unique_ptr<FieldDefinition>> *fieldDefinitionList; \
166     std::vector<std::unique_ptr<Name>> *nameList;          \
167     std::vector<std::unique_ptr<EnumValueDefinition>> *enumValueDefinitionList; \
168 };
169 
170 #define YYSTYPE union yystype
171 #define YYLTYPE yy::location
172 
173 
174 #line 175 "parser.tab.hpp" // lalr1.cc:394
175 
176 
177 # include <cstdlib> // std::abort
178 # include <iostream>
179 # include <stdexcept>
180 # include <string>
181 # include <vector>
182 # include "stack.hh"
183 # include "location.hh"
184 
185 
186 #ifndef YY_ATTRIBUTE
187 # if (defined __GNUC__                                               \
188       && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__)))  \
189      || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
190 #  define YY_ATTRIBUTE(Spec) __attribute__(Spec)
191 # else
192 #  define YY_ATTRIBUTE(Spec) /* empty */
193 # endif
194 #endif
195 
196 #ifndef YY_ATTRIBUTE_PURE
197 # define YY_ATTRIBUTE_PURE   YY_ATTRIBUTE ((__pure__))
198 #endif
199 
200 #ifndef YY_ATTRIBUTE_UNUSED
201 # define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
202 #endif
203 
204 #if !defined _Noreturn \
205      && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
206 # if defined _MSC_VER && 1200 <= _MSC_VER
207 #  define _Noreturn __declspec (noreturn)
208 # else
209 #  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
210 # endif
211 #endif
212 
213 /* Suppress unused-variable warnings by "using" E.  */
214 #if ! defined lint || defined __GNUC__
215 # define YYUSE(E) ((void) (E))
216 #else
217 # define YYUSE(E) /* empty */
218 #endif
219 
220 #if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
221 /* Suppress an incorrect diagnostic about yylval being uninitialized.  */
222 # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
223     _Pragma ("GCC diagnostic push") \
224     _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
225     _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
226 # define YY_IGNORE_MAYBE_UNINITIALIZED_END \
227     _Pragma ("GCC diagnostic pop")
228 #else
229 # define YY_INITIAL_VALUE(Value) Value
230 #endif
231 #ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
232 # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
233 # define YY_IGNORE_MAYBE_UNINITIALIZED_END
234 #endif
235 #ifndef YY_INITIAL_VALUE
236 # define YY_INITIAL_VALUE(Value) /* Nothing. */
237 #endif
238 
239 /* Debug traces.  */
240 #ifndef YYDEBUG
241 # define YYDEBUG 0
242 #endif
243 
244 
245 namespace yy {
246 #line 247 "parser.tab.hpp" // lalr1.cc:394
247 
248 
249 
250 
251 
252   /// A Bison parser.
253   class GraphQLParserImpl
254   {
255   public:
256 #ifndef YYSTYPE
257     /// Symbol semantic values.
258 
259 #else
260     typedef YYSTYPE semantic_type;
261 #endif
262     /// Symbol locations.
263     typedef location location_type;
264 
265     /// Syntax errors thrown from user actions.
266     struct syntax_error : std::runtime_error
267     {
268       syntax_error (const location_type& l, const std::string& m);
269       location_type location;
270     };
271 
272     /// Tokens.
273     struct token
274     {
275       enum yytokentype
276       {
277         TOK_EOF = 0,
278         TOK_DIRECTIVE = 258,
279         TOK_ENUM = 259,
280         TOK_EXTEND = 260,
281         TOK_FALSE = 261,
282         TOK_FRAGMENT = 262,
283         TOK_IMPLEMENTS = 263,
284         TOK_INPUT = 264,
285         TOK_INTERFACE = 265,
286         TOK_MUTATION = 266,
287         TOK_NULL = 267,
288         TOK_QUERY = 268,
289         TOK_ON = 269,
290         TOK_SCALAR = 270,
291         TOK_SCHEMA = 271,
292         TOK_SUBSCRIPTION = 272,
293         TOK_TRUE = 273,
294         TOK_TYPE = 274,
295         TOK_UNION = 275,
296         TOK_BANG = 276,
297         TOK_LPAREN = 277,
298         TOK_RPAREN = 278,
299         TOK_ELLIPSIS = 279,
300         TOK_COLON = 280,
301         TOK_EQUAL = 281,
302         TOK_AT = 282,
303         TOK_LBRACKET = 283,
304         TOK_RBRACKET = 284,
305         TOK_LBRACE = 285,
306         TOK_PIPE = 286,
307         TOK_RBRACE = 287,
308         TOK_VARIABLE = 288,
309         TOK_INTEGER = 289,
310         TOK_FLOAT = 290,
311         TOK_STRING = 291,
312         TOK_IDENTIFIER = 292
313       };
314     };
315 
316     /// (External) token type, as returned by yylex.
317     typedef token::yytokentype token_type;
318 
319     /// Symbol type: an internal symbol number.
320     typedef int symbol_number_type;
321 
322     /// The symbol type number to denote an empty symbol.
323     enum { empty_symbol = -2 };
324 
325     /// Internal symbol number for tokens (subsumed by symbol_number_type).
326     typedef unsigned char token_number_type;
327 
328     /// A complete symbol.
329     ///
330     /// Expects its Base type to provide access to the symbol type
331     /// via type_get().
332     ///
333     /// Provide access to semantic value and location.
334     template <typename Base>
335     struct basic_symbol : Base
336     {
337       /// Alias to Base.
338       typedef Base super_type;
339 
340       /// Default constructor.
341       basic_symbol ();
342 
343       /// Copy constructor.
344       basic_symbol (const basic_symbol& other);
345 
346       /// Constructor for valueless symbols.
347       basic_symbol (typename Base::kind_type t,
348                     const location_type& l);
349 
350       /// Constructor for symbols with semantic value.
351       basic_symbol (typename Base::kind_type t,
352                     const semantic_type& v,
353                     const location_type& l);
354 
355       /// Destroy the symbol.
356       ~basic_symbol ();
357 
358       /// Destroy contents, and record that is empty.
359       void clear ();
360 
361       /// Whether empty.
362       bool empty () const;
363 
364       /// Destructive move, \a s is emptied into this.
365       void move (basic_symbol& s);
366 
367       /// The semantic value.
368       semantic_type value;
369 
370       /// The location.
371       location_type location;
372 
373     private:
374       /// Assignment operator.
375       basic_symbol& operator= (const basic_symbol& other);
376     };
377 
378     /// Type access provider for token (enum) based symbols.
379     struct by_type
380     {
381       /// Default constructor.
382       by_type ();
383 
384       /// Copy constructor.
385       by_type (const by_type& other);
386 
387       /// The symbol type as needed by the constructor.
388       typedef token_type kind_type;
389 
390       /// Constructor from (external) token numbers.
391       by_type (kind_type t);
392 
393       /// Record that this symbol is empty.
394       void clear ();
395 
396       /// Steal the symbol type from \a that.
397       void move (by_type& that);
398 
399       /// The (internal) type number (corresponding to \a type).
400       /// \a empty when empty.
401       symbol_number_type type_get () const;
402 
403       /// The token.
404       token_type token () const;
405 
406       /// The symbol type.
407       /// \a empty_symbol when empty.
408       /// An int, not token_number_type, to be able to store empty_symbol.
409       int type;
410     };
411 
412     /// "External" symbols: returned by the scanner.
413     typedef basic_symbol<by_type> symbol_type;
414 
415 
416     /// Build a parser object.
417     GraphQLParserImpl (bool enableSchema_yyarg, Node **outAST_yyarg, const char **outError_yyarg, void *scanner_yyarg);
418     virtual ~GraphQLParserImpl ();
419 
420     /// Parse.
421     /// \returns  0 iff parsing succeeded.
422     virtual int parse ();
423 
424 #if YYDEBUG
425     /// The current debugging stream.
426     std::ostream& debug_stream () const YY_ATTRIBUTE_PURE;
427     /// Set the current debugging stream.
428     void set_debug_stream (std::ostream &);
429 
430     /// Type for debugging levels.
431     typedef int debug_level_type;
432     /// The current debugging level.
433     debug_level_type debug_level () const YY_ATTRIBUTE_PURE;
434     /// Set the current debugging level.
435     void set_debug_level (debug_level_type l);
436 #endif
437 
438     /// Report a syntax error.
439     /// \param loc    where the syntax error is found.
440     /// \param msg    a description of the syntax error.
441     virtual void error (const location_type& loc, const std::string& msg);
442 
443     /// Report a syntax error.
444     void error (const syntax_error& err);
445 
446   private:
447     /// This class is not copyable.
448     GraphQLParserImpl (const GraphQLParserImpl&);
449     GraphQLParserImpl& operator= (const GraphQLParserImpl&);
450 
451     /// State numbers.
452     typedef int state_type;
453 
454     /// Generate an error message.
455     /// \param yystate   the state where the error occurred.
456     /// \param yyla      the lookahead token.
457     virtual std::string yysyntax_error_ (state_type yystate,
458                                          const symbol_type& yyla) const;
459 
460     /// Compute post-reduction state.
461     /// \param yystate   the current state
462     /// \param yysym     the nonterminal to push on the stack
463     state_type yy_lr_goto_state_ (state_type yystate, int yysym);
464 
465     /// Whether the given \c yypact_ value indicates a defaulted state.
466     /// \param yyvalue   the value to check
467     static bool yy_pact_value_is_default_ (int yyvalue);
468 
469     /// Whether the given \c yytable_ value indicates a syntax error.
470     /// \param yyvalue   the value to check
471     static bool yy_table_value_is_error_ (int yyvalue);
472 
473     static const short int yypact_ninf_;
474     static const signed char yytable_ninf_;
475 
476     /// Convert a scanner token number \a t to a symbol number.
477     static token_number_type yytranslate_ (int t);
478 
479     // Tables.
480   // YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
481   // STATE-NUM.
482   static const short int yypact_[];
483 
484   // YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
485   // Performed when YYTABLE does not specify something else to do.  Zero
486   // means the default is an error.
487   static const unsigned char yydefact_[];
488 
489   // YYPGOTO[NTERM-NUM].
490   static const short int yypgoto_[];
491 
492   // YYDEFGOTO[NTERM-NUM].
493   static const short int yydefgoto_[];
494 
495   // YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
496   // positive, shift that token.  If negative, reduce the rule whose
497   // number is the opposite.  If YYTABLE_NINF, syntax error.
498   static const unsigned short int yytable_[];
499 
500   static const short int yycheck_[];
501 
502   // YYSTOS[STATE-NUM] -- The (internal number of the) accessing
503   // symbol of state STATE-NUM.
504   static const unsigned char yystos_[];
505 
506   // YYR1[YYN] -- Symbol number of symbol that rule YYN derives.
507   static const unsigned char yyr1_[];
508 
509   // YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.
510   static const unsigned char yyr2_[];
511 
512 
513     /// Convert the symbol name \a n to a form suitable for a diagnostic.
514     static std::string yytnamerr_ (const char *n);
515 
516 
517     /// For a symbol, its name in clear.
518     static const char* const yytname_[];
519 #if YYDEBUG
520   // YYRLINE[YYN] -- Source line where rule number YYN was defined.
521   static const unsigned short int yyrline_[];
522     /// Report on the debug stream that the rule \a r is going to be reduced.
523     virtual void yy_reduce_print_ (int r);
524     /// Print the state stack on the debug stream.
525     virtual void yystack_print_ ();
526 
527     // Debugging.
528     int yydebug_;
529     std::ostream* yycdebug_;
530 
531     /// \brief Display a symbol type, value and location.
532     /// \param yyo    The output stream.
533     /// \param yysym  The symbol.
534     template <typename Base>
535     void yy_print_ (std::ostream& yyo, const basic_symbol<Base>& yysym) const;
536 #endif
537 
538     /// \brief Reclaim the memory associated to a symbol.
539     /// \param yymsg     Why this token is reclaimed.
540     ///                  If null, print nothing.
541     /// \param yysym     The symbol.
542     template <typename Base>
543     void yy_destroy_ (const char* yymsg, basic_symbol<Base>& yysym) const;
544 
545   private:
546     /// Type access provider for state based symbols.
547     struct by_state
548     {
549       /// Default constructor.
550       by_state ();
551 
552       /// The symbol type as needed by the constructor.
553       typedef state_type kind_type;
554 
555       /// Constructor.
556       by_state (kind_type s);
557 
558       /// Copy constructor.
559       by_state (const by_state& other);
560 
561       /// Record that this symbol is empty.
562       void clear ();
563 
564       /// Steal the symbol type from \a that.
565       void move (by_state& that);
566 
567       /// The (internal) type number (corresponding to \a state).
568       /// \a empty_symbol when empty.
569       symbol_number_type type_get () const;
570 
571       /// The state number used to denote an empty symbol.
572       enum { empty_state = -1 };
573 
574       /// The state.
575       /// \a empty when empty.
576       state_type state;
577     };
578 
579     /// "Internal" symbol: element of the stack.
580     struct stack_symbol_type : basic_symbol<by_state>
581     {
582       /// Superclass.
583       typedef basic_symbol<by_state> super_type;
584       /// Construct an empty symbol.
585       stack_symbol_type ();
586       /// Copy construct.
587       stack_symbol_type (const stack_symbol_type& that);
588       /// Steal the contents from \a sym to build this.
589       stack_symbol_type (state_type s, symbol_type& sym);
590       /// Assignment, needed by push_back.
591       stack_symbol_type& operator= (const stack_symbol_type& that);
592     };
593 
594     /// Stack type.
595     typedef stack<stack_symbol_type> stack_type;
596 
597     /// The stack.
598     stack_type yystack_;
599 
600     /// Push a new state on the stack.
601     /// \param m    a debug message to display
602     ///             if null, no trace is output.
603     /// \param s    the symbol
604     /// \warning the contents of \a s.value is stolen.
605     void yypush_ (const char* m, stack_symbol_type& s);
606 
607     /// Push a new look ahead token on the state on the stack.
608     /// \param m    a debug message to display
609     ///             if null, no trace is output.
610     /// \param s    the state
611     /// \param sym  the symbol (for its value and location).
612     /// \warning the contents of \a s.value is stolen.
613     void yypush_ (const char* m, state_type s, symbol_type& sym);
614 
615     /// Pop \a n symbols the three stacks.
616     void yypop_ (unsigned n = 1);
617 
618     /// Constants.
619     enum
620     {
621       yyeof_ = 0,
622       yylast_ = 955,     ///< Last index in yytable_.
623       yynnts_ = 79,  ///< Number of nonterminal symbols.
624       yyfinal_ = 74, ///< Termination state number.
625       yyterror_ = 1,
626       yyerrcode_ = 256,
627       yyntokens_ = 38  ///< Number of tokens.
628     };
629 
630 
631     // User arguments.
632     bool enableSchema;
633     Node **outAST;
634     const char **outError;
635     void *scanner;
636   };
637 
638 
639 
640 } // yy
641 #line 642 "parser.tab.hpp" // lalr1.cc:394
642 
643 
644 
645 
646 #endif // !YY_YY_PARSER_TAB_HPP_INCLUDED
647