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-
- /* A Bison parser, made from mst.y */
-
- #define BANG 258
- #define COLON 259
- #define UPARROW 260
- #define DOT 261
- #define ASSIGN 262
- #define SHARP 263
- #define SEMICOLON 264
- #define OPEN_PAREN 265
- #define CLOSE_PAREN 266
- #define OPEN_BRACKET 267
- #define CLOSE_BRACKET 268
- #define PRIMITIVE_START 269
- #define INTERNAL_TOKEN 270
- #define IDENTIFIER 271
- #define KEYWORD 272
- #define STRING_LITERAL 273
- #define SYMBOL_KEYWORD 274
- #define BINOP 275
- #define VERTICAL_BAR 276
- #define INTEGER_LITERAL 277
- #define FLOATING_LITERAL 278
- #define CHAR_LITERAL 279
-
- #line 26 "mst.y"
-
- #include "mst.h"
- #include "mstsym.h"
- #include "msttree.h"
- #include "mstdict.h"
- #include <stdio.h>
- #ifdef HAS_ALLOCA_H
- #include <alloca.h>
- #endif
-
- #define YYDEBUG 1
-
- extern Boolean quietExecution;
-
- /*int yynerr; /* hack around Bison bug for pure parser */
- /*int yydebug = 0; /* hack around Bison bug for pure parser */
-
- #line 46 "mst.y"
- typedef union{
- char cval;
- double fval;
- long ival;
- char *sval;
- TreeNode node;
- } YYSTYPE;
-
- #ifndef YYLTYPE
- typedef
- struct yyltype
- {
- int timestamp;
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- char *text;
- }
- yyltype;
-
- #define YYLTYPE yyltype
- #endif
-
- #include <stdio.h>
-
- #ifndef __STDC__
- #define const
- #endif
-
-
-
- #define YYFINAL 146
- #define YYFLAG -32768
- #define YYNTBASE 25
-
- #define YYTRANSLATE(x) ((unsigned)(x) <= 279 ? yytranslate[x] : 71)
-
- static const char yytranslate[] = { 0,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 1, 2, 3, 4, 5,
- 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23, 24
- };
-
- static const short yyrline[] = { 0,
- 81, 83, 86, 89, 91, 94, 96, 97, 103, 110,
- 113, 117, 150, 158, 167, 170, 172, 174, 179, 181,
- 183, 184, 189, 193, 195, 198, 202, 204, 209, 213,
- 221, 223, 227, 229, 233, 235, 238, 242, 243, 246,
- 253, 255, 258, 260, 265, 267, 268, 271, 273, 274,
- 275, 278, 280, 281, 282, 283, 286, 288, 291, 295,
- 297, 298, 299, 303, 307, 311, 315, 317, 321, 323,
- 328, 330, 331, 332, 333, 336, 341, 343, 349, 351,
- 356, 358, 359, 362, 366, 368, 371, 376, 378, 381,
- 386, 389, 394, 399, 401, 406, 408, 410
- };
-
- static const char * const yytname[] = { 0,
- "error","$illegal.","BANG","COLON","UPARROW","DOT","ASSIGN","SHARP","SEMICOLON","OPEN_PAREN",
- "CLOSE_PAREN","OPEN_BRACKET","CLOSE_BRACKET","PRIMITIVE_START","INTERNAL_TOKEN","IDENTIFIER","KEYWORD","STRING_LITERAL","SYMBOL_KEYWORD","BINOP",
- "VERTICAL_BAR","INTEGER_LITERAL","FLOATING_LITERAL","CHAR_LITERAL","program"
- };
-
- static const short yyr1[] = { 0,
- 25, 25, 26, 27, 27, 28, 28, 28, 28, 28,
- 29, 30, 31, 31, 32, 32, 32, 32, 33, 33,
- 33, 33, 34, 35, 35, 36, 37, 37, 38, 39,
- 40, 40, 41, 41, 42, 42, 43, 43, 43, 43,
- 44, 44, 45, 45, 46, 46, 46, 47, 47, 47,
- 47, 48, 48, 48, 48, 48, 49, 49, 50, 51,
- 51, 51, 51, 52, 53, 54, 55, 55, 56, 56,
- 57, 57, 57, 57, 57, 58, 59, 59, 60, 60,
- 61, 61, 61, 62, 63, 63, 64, 65, 65, 66,
- 67, 67, 68, 69, 69, 70, 70, 70
- };
-
- static const short yyr2[] = { 0,
- 1, 2, 1, 1, 2, 3, 2, 2, 3, 2,
- 3, 1, 2, 3, 2, 3, 3, 4, 1, 2,
- 1, 1, 1, 1, 1, 1, 2, 3, 1, 3,
- 2, 3, 1, 2, 0, 1, 2, 1, 3, 3,
- 1, 2, 2, 3, 1, 1, 1, 1, 1, 1,
- 3, 1, 1, 1, 1, 1, 1, 1, 2, 1,
- 1, 1, 1, 1, 1, 2, 2, 3, 1, 2,
- 1, 1, 1, 1, 1, 4, 0, 2, 2, 3,
- 1, 1, 1, 2, 1, 1, 3, 1, 1, 2,
- 2, 3, 2, 2, 3, 1, 2, 1
- };
-
- static const short yydefact[] = { 0,
- 0, 0, 0, 0, 0, 77, 3, 26, 65, 0,
- 57, 58, 64, 0, 0, 4, 0, 48, 0, 0,
- 38, 0, 41, 45, 49, 52, 53, 54, 55, 56,
- 50, 46, 81, 88, 82, 0, 83, 47, 10, 0,
- 0, 48, 12, 37, 0, 60, 63, 62, 24, 25,
- 61, 59, 66, 0, 0, 0, 0, 31, 33, 0,
- 22, 23, 29, 2, 0, 19, 0, 21, 0, 5,
- 7, 0, 0, 43, 0, 0, 8, 0, 48, 42,
- 0, 93, 84, 0, 0, 90, 40, 36, 11, 67,
- 71, 72, 74, 73, 75, 0, 69, 51, 79, 0,
- 0, 78, 32, 34, 0, 0, 0, 15, 20, 0,
- 27, 6, 0, 13, 9, 39, 44, 96, 0, 98,
- 94, 0, 85, 86, 87, 89, 91, 0, 68, 70,
- 76, 80, 0, 17, 0, 16, 28, 14, 97, 95,
- 92, 30, 18, 0, 0, 0
- };
-
- static const short yydefgoto[] = { 144,
- 14, 15, 16, 17, 41, 72, 64, 65, 66, 51,
- 18, 68, 69, 106, 19, 60, 87, 88, 21, 22,
- 23, 24, 25, 26, 27, 92, 28, 29, 30, 95,
- 96, 97, 31, 56, 57, 32, 33, 34, 35, 36,
- 37, 120, 38, 82, 121
- };
-
- static const short yypact[] = { 247,
- 44, 294, 294, 339, 294, 36,-32768,-32768,-32768, 22,
- -32768,-32768,-32768, 98, 148,-32768, 15, 39, 291, 49,
- 64, 294,-32768, 57,-32768,-32768,-32768,-32768,-32768,-32768,
- -32768, 56, 59, 66, 90, 142,-32768,-32768,-32768, 173,
- 82,-32768,-32768,-32768, 309,-32768,-32768,-32768,-32768,-32768,
- -32768,-32768,-32768, 77, 74, 271, 16,-32768,-32768, 28,
- -32768,-32768,-32768,-32768, 123,-32768, 74, 81, 74,-32768,
- -32768, 80, 88,-32768, 96, 91,-32768, 173, 97,-32768,
- 257, 100,-32768, 294, 294, 81,-32768,-32768,-32768,-32768,
- -32768,-32768,-32768,-32768,-32768, 324,-32768,-32768,-32768, 92,
- 74,-32768,-32768,-32768, 94, 223, 198,-32768,-32768, 74,
- -32768,-32768, 114,-32768,-32768,-32768,-32768,-32768, 294, 81,
- -32768, 257,-32768,-32768, 66,-32768, 13, 294,-32768,-32768,
- -32768,-32768, 102,-32768, 223,-32768,-32768,-32768, 66,-32768,
- 13,-32768,-32768, 120, 125,-32768
- };
-
- static const short yypgoto[] = {-32768,
- -32768,-32768, 117,-32768,-32768,-32768, -11,-32768, -33, -14,
- 2,-32768, -27, 27, 71,-32768, -51, 11, 18,-32768,
- 17, -77,-32768, -43,-32768, 134, -32, -30,-32768, 136,
- -32768, 33,-32768,-32768,-32768,-32768, -56, -74, -68, -60,
- -32768, 106,-32768,-32768, 21
- };
-
-
- #define YYLAST 360
-
-
- static const short yytable[] = { 67,
- 83, 91, 67, 42, 100, 73, 123, 123, 85, 125,
- 20, 59, 93, 108, 94, 61, 126, 71, 43, 101,
- 44, 84, 54, 79, 127, 20, 116, 124, 124, 76,
- 62, 63, 49, 50, 49, 50, 102, 8, 80, 55,
- 110, 123, 58, 8, 139, 74, 39, 118, 103, 40,
- 123, 77, 91, 85, 134, 136, 99, 67, 128, 126,
- 113, 104, 124, 93, 81, 94, 119, 141, 109, 78,
- 111, 124, -85, -85, -86, -86, -85, -85, -86, -86,
- 61, 62, 112, 143, 89, 42, 42, 98, 118, 8,
- 114, 83, 128, 115, 85, 62, 63, 63, 61, 49,
- 50, 40, 132, 117, 131, 83, -89, 119, 122, -89,
- -89, 137, 84, 62, 63, 133, 138, 49, 50, 145,
- 42, 142, -35, 75, 146, -35, 84, 3, 130, 42,
- 4, 70, 5, 135, 6, 107, 105, 52, 8, 53,
- 9, 86, 140, 10, 11, 12, 13, -1, 1, 0,
- 2, 0, 3, 0, 0, 4, 0, 5, 63, 6,
- 0, 49, 50, 8, 0, 9, 0, 0, 10, 11,
- 12, 13, -35, 75, 0, -35, 0, 3, 0, 0,
- 4, 0, 5, 0, 6, -35, 0, 0, 8, 0,
- 9, 0, 0, 0, 11, 12, 13, -35, 75, 0,
- -35, 0, 3, 0, 0, 4, 0, 5, 0, 6,
- 0, 105, 0, 8, 0, 9, 0, 0, 0, 11,
- 12, 13, -35, 75, 0, -35, 0, 3, 0, 0,
- 4, 0, 5, 0, 6, 0, 0, 0, 8, 0,
- 9, 0, 0, 0, 11, 12, 13, 1, 0, 2,
- 0, 3, 0, 0, 4, 0, 5, 0, 6, 0,
- 0, 7, 8, 0, 9, 0, 0, 10, 11, 12,
- 13, 75, 62, 63, 0, 3, 49, 50, 4, 0,
- 5, 0, 6, -35, 0, 0, 8, 0, 9, 0,
- 0, 75, 11, 12, 13, 3, 0, 0, 4, 0,
- 5, 4, 6, 5, 0, 6, 8, 0, 9, 8,
- 0, 9, 11, 12, 13, 11, 12, 13, 45, 90,
- 0, 0, 0, 0, 46, 47, 9, 48, 49, 50,
- 11, 12, 13, 45, 129, 0, 0, 0, 0, 46,
- 47, 9, 48, 49, 50, 11, 12, 13, 45, 0,
- 0, 0, 0, 0, 46, 47, 0, 48, 49, 50
- };
-
- static const short yycheck[] = { 14,
- 34, 45, 17, 2, 56, 17, 84, 85, 36, 84,
- 0, 10, 45, 65, 45, 1, 85, 3, 2, 4,
- 3, 36, 5, 22, 85, 15, 78, 84, 85, 19,
- 16, 17, 20, 21, 20, 21, 21, 16, 22, 4,
- 68, 119, 21, 16, 119, 7, 3, 81, 21, 6,
- 128, 3, 96, 81, 106, 107, 55, 72, 86, 128,
- 72, 60, 119, 96, 9, 96, 81, 128, 67, 6,
- 69, 128, 16, 17, 16, 17, 20, 21, 20, 21,
- 1, 16, 3, 135, 3, 84, 85, 11, 122, 16,
- 3, 125, 120, 3, 122, 16, 17, 17, 1, 20,
- 21, 6, 101, 7, 13, 139, 17, 122, 9, 20,
- 21, 110, 127, 16, 17, 22, 3, 20, 21, 0,
- 119, 20, 0, 1, 0, 3, 141, 5, 96, 128,
- 8, 15, 10, 107, 12, 65, 14, 4, 16, 4,
- 18, 36, 122, 21, 22, 23, 24, 0, 1, -1,
- 3, -1, 5, -1, -1, 8, -1, 10, 17, 12,
- -1, 20, 21, 16, -1, 18, -1, -1, 21, 22,
- 23, 24, 0, 1, -1, 3, -1, 5, -1, -1,
- 8, -1, 10, -1, 12, 13, -1, -1, 16, -1,
- 18, -1, -1, -1, 22, 23, 24, 0, 1, -1,
- 3, -1, 5, -1, -1, 8, -1, 10, -1, 12,
- -1, 14, -1, 16, -1, 18, -1, -1, -1, 22,
- 23, 24, 0, 1, -1, 3, -1, 5, -1, -1,
- 8, -1, 10, -1, 12, -1, -1, -1, 16, -1,
- 18, -1, -1, -1, 22, 23, 24, 1, -1, 3,
- -1, 5, -1, -1, 8, -1, 10, -1, 12, -1,
- -1, 15, 16, -1, 18, -1, -1, 21, 22, 23,
- 24, 1, 16, 17, -1, 5, 20, 21, 8, -1,
- 10, -1, 12, 13, -1, -1, 16, -1, 18, -1,
- -1, 1, 22, 23, 24, 5, -1, -1, 8, -1,
- 10, 8, 12, 10, -1, 12, 16, -1, 18, 16,
- -1, 18, 22, 23, 24, 22, 23, 24, 10, 11,
- -1, -1, -1, -1, 16, 17, 18, 19, 20, 21,
- 22, 23, 24, 10, 11, -1, -1, -1, -1, 16,
- 17, 18, 19, 20, 21, 22, 23, 24, 10, -1,
- -1, -1, -1, -1, 16, 17, -1, 19, 20, 21
- };
- #define YYIMPURE 1
-
- /* -*-C-*- Note some compilers choke on comments on `#line' lines. */
- #line 3 "bison.simple"
-
- /* Skeleton output parser for bison,
- Copyright (C) 1984 Bob Corbett and Richard Stallman
-
- 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__)
- #include <alloca.h>
- #endif
-
- /* This is the parser code that is written into each bison parser
- when the %semantic_parser declaration is not specified in the grammar.
- It was written by Richard Stallman by simplifying the hairy parser
- used when %semantic_parser is specified. */
-
- /* Note: there must be only one dollar sign in this file.
- It is replaced by the list of actions, each action
- as one case of the switch. */
-
- #define yyerrok (yyerrstatus = 0)
- #define yyclearin (yychar = YYEMPTY)
- #define YYEMPTY -2
- #define YYEOF 0
- #define YYFAIL goto yyerrlab;
- #define YYACCEPT return(0)
- #define YYABORT return(1)
- #define YYERROR goto yyerrlab
-
- #define YYTERROR 1
- #define YYERRCODE 256
-
- #ifndef YYIMPURE
- #define YYLEX yylex()
- #endif
-
- #ifndef YYPURE
- #define YYLEX yylex(&yylval, &yylloc)
- #endif
-
- /* If nonreentrant, generate the variables here */
-
- #ifndef YYIMPURE
-
- int yychar; /* the lookahead symbol */
- YYSTYPE yylval; /* the semantic value of the */
- /* lookahead symbol */
-
- YYLTYPE yylloc; /* location data for the lookahead */
- /* symbol */
-
- int yynerrs; /* number of parse errors so far */
- #endif /* YYIMPURE */
-
- #if YYDEBUG != 0
- int yydebug; /* nonzero means print parse trace */
- /* Since this is uninitialized, it does not stop multiple parsers
- from coexisting. */
- #endif
-
- /* YYMAXDEPTH indicates the initial size of the parser's stacks */
-
- #ifndef YYMAXDEPTH
- #define YYMAXDEPTH 200
- #endif
-
- /* YYMAXLIMIT is the maximum size the stacks can grow to
- (effective only if the built-in stack extension method is used). */
-
- #ifndef YYMAXLIMIT
- #define YYMAXLIMIT 10000
- #endif
-
-
- #line 90 "bison.simple"
- int
- yyparse()
- {
- register int yystate;
- register int yyn;
- register short *yyssp;
- register YYSTYPE *yyvsp;
- YYLTYPE *yylsp;
- int yyerrstatus; /* number of tokens to shift before error messages enabled */
- int yychar1; /* lookahead token as an internal (translated) token number */
-
- short yyssa[YYMAXDEPTH]; /* the state stack */
- YYSTYPE yyvsa[YYMAXDEPTH]; /* the semantic value stack */
- YYLTYPE yylsa[YYMAXDEPTH]; /* the location stack */
-
- short *yyss = yyssa; /* refer to the stacks thru separate pointers */
- YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
- YYLTYPE *yyls = yylsa;
-
- int yymaxdepth = YYMAXDEPTH;
-
- #ifndef YYPURE
- int yychar;
- YYSTYPE yylval;
- YYLTYPE yylloc;
- int yynerrs;
- #endif
-
- YYSTYPE yyval; /* the variable used to return */
- /* semantic values from the action */
- /* routines */
-
- int yylen;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Starting parse\n");
- #endif
-
- yystate = 0;
- yyerrstatus = 0;
- yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
-
- /* Initialize stack pointers.
- Waste one element of value and location stack
- so that they stay on the same level as the state stack. */
-
- yyssp = yyss - 1;
- yyvsp = yyvs;
- yylsp = yyls;
-
- /* Push a new state, which is found in yystate . */
- /* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks. */
- yynewstate:
-
- *++yyssp = yystate;
-
- if (yyssp >= yyss + yymaxdepth - 1)
- {
- /* Give user a chance to reallocate the stack */
- /* Use copies of these so that the &'s don't force the real ones into memory. */
- YYSTYPE *yyvs1 = yyvs;
- YYLTYPE *yyls1 = yyls;
- short *yyss1 = yyss;
-
- /* Get the current used size of the three stacks, in elements. */
- int size = yyssp - yyss + 1;
-
- #ifdef yyoverflow
- /* Each stack pointer address is followed by the size of
- the data in use in that stack, in bytes. */
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yyls1, size * sizeof (*yylsp),
- &yymaxdepth);
-
- yyss = yyss1; yyvs = yyvs1; yyls = yyls1;
- #else /* no yyoverflow */
- /* Extend the stack our own way. */
- if (yymaxdepth >= YYMAXLIMIT)
- yyerror("parser stack overflow");
- yymaxdepth *= 2;
- if (yymaxdepth > YYMAXLIMIT)
- yymaxdepth = YYMAXLIMIT;
- yyss = (short *) alloca (yymaxdepth * sizeof (*yyssp));
- bcopy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp));
- yyvs = (YYSTYPE *) alloca (yymaxdepth * sizeof (*yyvsp));
- bcopy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp));
- #ifdef YYLSP_NEEDED
- yyls = (YYLTYPE *) alloca (yymaxdepth * sizeof (*yylsp));
- bcopy ((char *)yyls1, (char *)yyls, size * sizeof (*yylsp));
- #endif
- #endif /* no yyoverflow */
-
- yyssp = yyss + size - 1;
- yyvsp = yyvs + size - 1;
- #ifdef YYLSP_NEEDED
- yylsp = yyls + size - 1;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Stack size increased to %d\n", yymaxdepth);
- #endif
-
- if (yyssp >= yyss + yymaxdepth - 1)
- YYABORT;
- }
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Entering state %d\n", yystate);
- #endif
-
- /* Do appropriate processing given the current state. */
- /* Read a lookahead token if we need one and don't already have one. */
- yyresume:
-
- /* First try to decide what to do without reference to lookahead token. */
-
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yydefault;
-
- /* Not known => get a lookahead token if don't already have one. */
-
- /* yychar is either YYEMPTY or YYEOF
- or a valid token in external form. */
-
- if (yychar == YYEMPTY)
- {
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Reading a token: ");
- #endif
- yychar = YYLEX;
- }
-
- /* Convert token to internal form (in yychar1) for indexing tables with */
-
- if (yychar <= 0) /* This means end of input. */
- {
- yychar1 = 0;
- yychar = YYEOF; /* Don't call YYLEX any more */
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Now at end of input.\n");
- #endif
- }
- else
- {
- yychar1 = YYTRANSLATE(yychar);
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Next token is %d (%s)\n", yychar, yytname[yychar1]);
- #endif
- }
-
- yyn += yychar1;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
- goto yydefault;
-
- yyn = yytable[yyn];
-
- /* yyn is what to do for this token type in this state.
- Negative => reduce, -yyn is rule number.
- Positive => shift, yyn is new state.
- New state is final state => don't bother to shift,
- just return success.
- 0, or most negative number => error. */
-
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrlab;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrlab;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
- #endif
-
- /* Discard the token being shifted unless it is eof. */
- if (yychar != YYEOF)
- yychar = YYEMPTY;
-
- *++yyvsp = yylval;
- #ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
- #endif
-
- /* count tokens shifted since error; after three, turn off error status. */
- if (yyerrstatus) yyerrstatus--;
-
- yystate = yyn;
- goto yynewstate;
-
- /* Do the default action for the current state. */
- yydefault:
-
- yyn = yydefact[yystate];
- if (yyn == 0)
- goto yyerrlab;
-
- /* Do a reduction. yyn is the number of a rule to reduce with. */
- yyreduce:
- yylen = yyr2[yyn];
- yyval = yyvsp[1-yylen]; /* implement default value of the action */
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- if (yylen == 1)
- fprintf (stderr, "Reducing 1 value via line %d, ",
- yyrline[yyn]);
- else
- fprintf (stderr, "Reducing %d values via line %d, ",
- yylen, yyrline[yyn]);
- }
- #endif
-
-
- switch (yyn) {
-
- case 2:
- #line 83 "mst.y"
- { compileMethod(yyvsp[0].node); ;
- break;}
- case 3:
- #line 87 "mst.y"
- { clearMethodStartPos(); ;
- break;}
- case 8:
- #line 97 "mst.y"
- { if (!hadError) {
- executeStatements(nil, yyvsp[-1].node,
- quietExecution);
- }
- hadError = false;
- ;
- break;}
- case 9:
- #line 104 "mst.y"
- { if (!hadError) {
- executeStatements(yyvsp[-2].node, yyvsp[-1].node,
- quietExecution);
- }
- hadError = false;
- ;
- break;}
- case 10:
- #line 110 "mst.y"
- { hadError = false; ;
- break;}
- case 11:
- #line 114 "mst.y"
- { clearMethodStartPos(); ;
- break;}
- case 12:
- #line 118 "mst.y"
- { executeStatements(nil,
- makeStatementList(yyvsp[0].node, nil), true); ;
- break;}
- case 13:
- #line 151 "mst.y"
- { if (!hadError) {
- compileMethod(yyvsp[-1].node);
- clearMethodStartPos();
- } else {
- hadError = false;
- }
- ;
- break;}
- case 14:
- #line 158 "mst.y"
- { if (!hadError) {
- compileMethod(yyvsp[-1].node);
- clearMethodStartPos();
- } else {
- hadError = false;
- }
- ;
- break;}
- case 15:
- #line 169 "mst.y"
- { yyval.node = makeMethod(yyvsp[-1].node, nil, 0, yyvsp[0].node); ;
- break;}
- case 16:
- #line 171 "mst.y"
- { yyval.node = makeMethod(yyvsp[-2].node, yyvsp[-1].node, 0, yyvsp[0].node); ;
- break;}
- case 17:
- #line 173 "mst.y"
- { yyval.node = makeMethod(yyvsp[-2].node, nil, yyvsp[-1].ival, yyvsp[0].node); ;
- break;}
- case 18:
- #line 175 "mst.y"
- { yyval.node = makeMethod(yyvsp[-3].node, yyvsp[-2].node, yyvsp[-1].ival, yyvsp[0].node); ;
- break;}
- case 19:
- #line 180 "mst.y"
- { yyval.node = makeUnaryExpr(nil, yyvsp[0].sval); ;
- break;}
- case 20:
- #line 181 "mst.y"
- { yyval.node = makeBinaryExpr(nil, yyvsp[-1].sval,
- yyvsp[0].node); ;
- break;}
- case 21:
- #line 183 "mst.y"
- { yyval.node = makeKeywordExpr(nil, yyvsp[0].node); ;
- break;}
- case 22:
- #line 184 "mst.y"
- { errorf("Invalid message pattern");
- hadError = true;
- yyval.node = nil; ;
- break;}
- case 26:
- #line 199 "mst.y"
- { yyval.node = makeVariable(yyvsp[0].sval); ;
- break;}
- case 27:
- #line 203 "mst.y"
- { yyval.node = makeKeywordList(yyvsp[-1].sval, yyvsp[0].node); ;
- break;}
- case 28:
- #line 205 "mst.y"
- { addNode(yyvsp[-2].node, makeKeywordList(yyvsp[-1].sval, yyvsp[0].node));
- yyval.node = yyvsp[-2].node; ;
- break;}
- case 30:
- #line 215 "mst.y"
- { yyval.ival = yyvsp[-1].ival;
- if (strcmp(yyvsp[0].sval, ">") != 0) {
- YYERROR;
- }
- ;
- break;}
- case 31:
- #line 222 "mst.y"
- { yyval.node = nil; ;
- break;}
- case 32:
- #line 224 "mst.y"
- { yyval.node = yyvsp[-1].node; ;
- break;}
- case 33:
- #line 228 "mst.y"
- { yyval.node = makeVariableList(yyvsp[0].node); ;
- break;}
- case 34:
- #line 229 "mst.y"
- { addNode(yyvsp[-1].node, makeVariableList(yyvsp[0].node));
- yyval.node = yyvsp[-1].node; ;
- break;}
- case 35:
- #line 234 "mst.y"
- { yyval.node = nil; ;
- break;}
- case 37:
- #line 240 "mst.y"
- { yyval.node = makeStatementList(makeReturn(yyvsp[0].node),
- nil); ;
- break;}
- case 38:
- #line 242 "mst.y"
- { yyval.node = makeStatementList(yyvsp[0].node, nil); ;
- break;}
- case 39:
- #line 245 "mst.y"
- { yyval.node = makeStatementList(yyvsp[-2].node, yyvsp[0].node); ;
- break;}
- case 40:
- #line 246 "mst.y"
- { yyval.node = yyvsp[0].node;
- yyerrok;
- errorf("Error in expression");
- hadError = true;
- ;
- break;}
- case 42:
- #line 255 "mst.y"
- { yyval.node = makeAssign(yyvsp[-1].node, yyvsp[0].node); ;
- break;}
- case 43:
- #line 259 "mst.y"
- { yyval.node = makeVariableList(yyvsp[-1].node); ;
- break;}
- case 44:
- #line 261 "mst.y"
- { addNode(yyvsp[-2].node, makeVariableList(yyvsp[-1].node));
- yyval.node = yyvsp[-2].node; ;
- break;}
- case 51:
- #line 275 "mst.y"
- { yyval.node = yyvsp[-1].node; ;
- break;}
- case 57:
- #line 287 "mst.y"
- { yyval.node = makeIntConstant(yyvsp[0].ival); ;
- break;}
- case 58:
- #line 288 "mst.y"
- { yyval.node = makeFloatConstant(yyvsp[0].fval); ;
- break;}
- case 59:
- #line 292 "mst.y"
- { yyval.node = makeSymbolConstant(yyvsp[0].node); ;
- break;}
- case 60:
- #line 296 "mst.y"
- { yyval.node = internIdent(yyvsp[0].sval); ;
- break;}
- case 61:
- #line 297 "mst.y"
- { yyval.node = internBinOP(yyvsp[0].sval); ;
- break;}
- case 62:
- #line 298 "mst.y"
- { yyval.node = internIdent(yyvsp[0].sval); ;
- break;}
- case 63:
- #line 299 "mst.y"
- { yyval.node = internIdent(yyvsp[0].sval); ;
- break;}
- case 64:
- #line 304 "mst.y"
- { yyval.node = makeCharConstant(yyvsp[0].cval); ;
- break;}
- case 65:
- #line 308 "mst.y"
- { yyval.node = makeStringConstant(yyvsp[0].sval); ;
- break;}
- case 66:
- #line 312 "mst.y"
- { yyval.node = makeArrayConstant(yyvsp[0].node); ;
- break;}
- case 67:
- #line 316 "mst.y"
- { yyval.node = nil; ;
- break;}
- case 68:
- #line 318 "mst.y"
- { yyval.node = yyvsp[-1].node; ;
- break;}
- case 69:
- #line 322 "mst.y"
- { yyval.node = makeArrayElt(yyvsp[0].node); ;
- break;}
- case 70:
- #line 324 "mst.y"
- { addNode(yyvsp[-1].node, makeArrayElt(yyvsp[0].node));
- yyval.node = yyvsp[-1].node; ;
- break;}
- case 76:
- #line 338 "mst.y"
- { yyval.node = makeBlock(yyvsp[-2].node, yyvsp[-1].node); ;
- break;}
- case 77:
- #line 342 "mst.y"
- { yyval.node = nil; ;
- break;}
- case 79:
- #line 350 "mst.y"
- { yyval.node = makeVariableList(yyvsp[0].node); ;
- break;}
- case 80:
- #line 352 "mst.y"
- { addNode(yyvsp[-2].node, makeVariableList(yyvsp[0].node));
- yyval.node = yyvsp[-2].node; ;
- break;}
- case 84:
- #line 363 "mst.y"
- { yyval.node = makeUnaryExpr(yyvsp[-1].node, yyvsp[0].sval); ;
- break;}
- case 87:
- #line 373 "mst.y"
- { yyval.node = makeBinaryExpr(yyvsp[-2].node, yyvsp[-1].sval, yyvsp[0].node); ;
- break;}
- case 90:
- #line 383 "mst.y"
- { yyval.node = makeKeywordExpr(yyvsp[-1].node, yyvsp[0].node); ;
- break;}
- case 91:
- #line 388 "mst.y"
- { yyval.node = makeKeywordList(yyvsp[-1].sval, yyvsp[0].node); ;
- break;}
- case 92:
- #line 390 "mst.y"
- { addNode(yyvsp[-2].node, makeKeywordList(yyvsp[-1].sval, yyvsp[0].node));
- yyval.node = yyvsp[-2].node; ;
- break;}
- case 93:
- #line 396 "mst.y"
- { yyval.node = makeCascadedMessage(yyvsp[-1].node, yyvsp[0].node); ;
- break;}
- case 94:
- #line 400 "mst.y"
- { yyval.node = makeMessageList(yyvsp[0].node); ;
- break;}
- case 95:
- #line 402 "mst.y"
- { addNode(yyvsp[-2].node, makeMessageList(yyvsp[0].node));
- yyval.node = yyvsp[-2].node; ;
- break;}
- case 96:
- #line 407 "mst.y"
- { yyval.node = makeUnaryExpr(nil, yyvsp[0].sval); ;
- break;}
- case 97:
- #line 409 "mst.y"
- { yyval.node = makeBinaryExpr(nil, yyvsp[-1].sval, yyvsp[0].node); ;
- break;}
- case 98:
- #line 411 "mst.y"
- { yyval.node = makeKeywordExpr(nil, yyvsp[0].node); ;
- break;}
- }
- /* the action file gets copied in in place of this dollarsign */
- #line 327 "bison.simple"
-
- yyvsp -= yylen;
- yyssp -= yylen;
- #ifdef YYLSP_NEEDED
- yylsp -= yylen;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
- #endif
-
- *++yyvsp = yyval;
-
- #ifdef YYLSP_NEEDED
- yylsp++;
- if (yylen == 0)
- {
- yylsp->first_line = yylloc.first_line;
- yylsp->first_column = yylloc.first_column;
- yylsp->last_line = (yylsp-1)->last_line;
- yylsp->last_column = (yylsp-1)->last_column;
- yylsp->text = 0;
- }
- else
- {
- yylsp->last_line = (yylsp+yylen-1)->last_line;
- yylsp->last_column = (yylsp+yylen-1)->last_column;
- }
- #endif
-
- /* Now "shift" the result of the reduction.
- Determine what state that goes to,
- based on the state we popped back to
- and the rule number reduced by. */
-
- yyn = yyr1[yyn];
-
- yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
- if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTBASE];
-
- goto yynewstate;
-
- yyerrlab: /* here on detecting error */
-
- if (! yyerrstatus)
- /* If not already recovering from an error, report this error. */
- {
- ++yynerrs;
- yyerror("parse error");
- }
-
- if (yyerrstatus == 3)
- {
- /* if just tried and failed to reuse lookahead token after an error, discard it. */
-
- /* return failure if at end of input */
- if (yychar == YYEOF)
- YYABORT;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
- #endif
-
- yychar = YYEMPTY;
- }
-
- /* Else will try to reuse lookahead token
- after shifting the error token. */
-
- yyerrstatus = 3; /* Each real token shifted decrements this */
-
- goto yyerrhandle;
-
- yyerrdefault: /* current state does not do anything special for the error token. */
-
- #if 0
- /* This is wrong; only states that explicitly want error tokens
- should shift them. */
- yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
- if (yyn) goto yydefault;
- #endif
-
- yyerrpop: /* pop the current state because it cannot handle the error token */
-
- if (yyssp == yyss) YYABORT;
- yyvsp--;
- yystate = *--yyssp;
- #ifdef YYLSP_NEEDED
- yylsp--;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "Error: state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
- #endif
-
- yyerrhandle:
-
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yyerrdefault;
-
- yyn += YYTERROR;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
- goto yyerrdefault;
-
- yyn = yytable[yyn];
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrpop;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrpop;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting error token, ");
- #endif
-
- *++yyvsp = yylval;
- #ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
- #endif
-
- yystate = yyn;
- goto yynewstate;
- }
- #line 415 "mst.y"
-
- /*
- ADDITIONAL C CODE
- */
-
-