#line 2 "ast-lex.cc" #line 4 "ast-lex.cc" #define YY_INT_ALIGNED short int /* A lexical scanner generated by flex */ /* %not-for-header */ /* %if-c-only */ /* %if-not-reentrant */ /* %endif */ /* %endif */ /* %ok-for-header */ #define FLEX_SCANNER #define YY_FLEX_MAJOR_VERSION 2 #define YY_FLEX_MINOR_VERSION 5 #define YY_FLEX_SUBMINOR_VERSION 34 #if YY_FLEX_SUBMINOR_VERSION > 0 #define FLEX_BETA #endif /* %if-c++-only */ /* %endif */ /* %if-c-only */ /* %endif */ /* %if-c-only */ /* %endif */ /* First, we deal with platform-specific or compiler-specific issues. */ /* begin standard C headers. */ /* %if-c-only */ #include #include #include #include /* %endif */ /* %if-tables-serialization */ /* %endif */ /* end standard C headers. */ /* %if-c-or-c++ */ /* flex integer type definitions */ #ifndef FLEXINT_H #define FLEXINT_H /* C99 systems have . Non-C99 systems may or may not. */ #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, * if you want the limit (max/min) macros for int types. */ #ifndef __STDC_LIMIT_MACROS #define __STDC_LIMIT_MACROS 1 #endif #include typedef int8_t flex_int8_t; typedef uint8_t flex_uint8_t; typedef int16_t flex_int16_t; typedef uint16_t flex_uint16_t; typedef int32_t flex_int32_t; typedef uint32_t flex_uint32_t; #else typedef signed char flex_int8_t; typedef short int flex_int16_t; typedef int flex_int32_t; typedef unsigned char flex_uint8_t; typedef unsigned short int flex_uint16_t; typedef unsigned int flex_uint32_t; #endif /* ! C99 */ /* Limits of integral types. */ #ifndef INT8_MIN #define INT8_MIN (-128) #endif #ifndef INT16_MIN #define INT16_MIN (-32767-1) #endif #ifndef INT32_MIN #define INT32_MIN (-2147483647-1) #endif #ifndef INT8_MAX #define INT8_MAX (127) #endif #ifndef INT16_MAX #define INT16_MAX (32767) #endif #ifndef INT32_MAX #define INT32_MAX (2147483647) #endif #ifndef UINT8_MAX #define UINT8_MAX (255U) #endif #ifndef UINT16_MAX #define UINT16_MAX (65535U) #endif #ifndef UINT32_MAX #define UINT32_MAX (4294967295U) #endif #endif /* ! FLEXINT_H */ /* %endif */ /* %if-c++-only */ /* %endif */ #ifdef __cplusplus /* The "const" storage-class-modifier is valid. */ #define YY_USE_CONST #else /* ! __cplusplus */ /* C99 requires __STDC__ to be defined as 1. */ #if defined (__STDC__) #define YY_USE_CONST #endif /* defined (__STDC__) */ #endif /* ! __cplusplus */ #ifdef YY_USE_CONST #define yyconst const #else #define yyconst #endif /* %not-for-header */ /* Returned upon end-of-file. */ #define YY_NULL 0 /* %ok-for-header */ /* %not-for-header */ /* Promotes a possibly negative, possibly signed char to an unsigned * integer for use as an array index. If the signed char is negative, * we want to instead treat it as an 8-bit unsigned char, hence the * double cast. */ #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) /* %ok-for-header */ /* %if-reentrant */ /* %endif */ /* %if-not-reentrant */ /* %endif */ /* Enter a start condition. This macro really ought to take a parameter, * but we do it the disgusting crufty way forced on us by the ()-less * definition of BEGIN. */ #define BEGIN (yy_start) = 1 + 2 * /* Translate the current start state into a value that can be later handed * to BEGIN to return to the state. The YYSTATE alias is for lex * compatibility. */ #define YY_START (((yy_start) - 1) / 2) #define YYSTATE YY_START /* Action number for EOF rule of a given start state. */ #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) /* Special action meaning "start processing a new file". */ #define YY_NEW_FILE yyrestart(yyin ) #define YY_END_OF_BUFFER_CHAR 0 /* Size of default input buffer. */ #ifndef YY_BUF_SIZE #define YY_BUF_SIZE 16384 #endif /* The state buf must be large enough to hold one state per character in the main buffer. */ #define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) #ifndef YY_TYPEDEF_YY_BUFFER_STATE #define YY_TYPEDEF_YY_BUFFER_STATE typedef struct yy_buffer_state *YY_BUFFER_STATE; #endif /* %if-not-reentrant */ extern int yyleng; /* %endif */ /* %if-c-only */ /* %if-not-reentrant */ extern FILE *yyin, *yyout; /* %endif */ /* %endif */ #define EOB_ACT_CONTINUE_SCAN 0 #define EOB_ACT_END_OF_FILE 1 #define EOB_ACT_LAST_MATCH 2 #define YY_LESS_LINENO(n) /* Return all but the first "n" matched characters back to the input stream. */ #define yyless(n) \ do \ { \ /* Undo effects of setting up yytext. */ \ int yyless_macro_arg = (n); \ YY_LESS_LINENO(yyless_macro_arg);\ *yy_cp = (yy_hold_char); \ YY_RESTORE_YY_MORE_OFFSET \ (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ YY_DO_BEFORE_ACTION; /* set up yytext again */ \ } \ while ( 0 ) #define unput(c) yyunput( c, (yytext_ptr) ) /* The following is because we cannot portably get our hands on size_t * (without autoconf's help, which isn't available because we want * flex-generated scanners to compile on their own). * Given that the standard has decreed that size_t exists since 1989, * I guess we can afford to depend on it. Manoj. */ #ifndef YY_TYPEDEF_YY_SIZE_T #define YY_TYPEDEF_YY_SIZE_T typedef size_t yy_size_t; #endif #ifndef YY_STRUCT_YY_BUFFER_STATE #define YY_STRUCT_YY_BUFFER_STATE struct yy_buffer_state { /* %if-c-only */ FILE *yy_input_file; /* %endif */ /* %if-c++-only */ /* %endif */ char *yy_ch_buf; /* input buffer */ char *yy_buf_pos; /* current position in input buffer */ /* Size of input buffer in bytes, not including room for EOB * characters. */ yy_size_t yy_buf_size; /* Number of characters read into yy_ch_buf, not including EOB * characters. */ int yy_n_chars; /* Whether we "own" the buffer - i.e., we know we created it, * and can realloc() it to grow it, and should free() it to * delete it. */ int yy_is_our_buffer; /* Whether this is an "interactive" input source; if so, and * if we're using stdio for input, then we want to use getc() * instead of fread(), to make sure we stop fetching input after * each newline. */ int yy_is_interactive; /* Whether we're considered to be at the beginning of a line. * If so, '^' rules will be active on the next match, otherwise * not. */ int yy_at_bol; int yy_bs_lineno; /**< The line count. */ int yy_bs_column; /**< The column count. */ /* Whether to try to fill the input buffer when we reach the * end of it. */ int yy_fill_buffer; int yy_buffer_status; #define YY_BUFFER_NEW 0 #define YY_BUFFER_NORMAL 1 /* When an EOF's been seen but there's still some text to process * then we mark the buffer as YY_EOF_PENDING, to indicate that we * shouldn't try reading from the input source any more. We might * still have a bunch of tokens to match, though, because of * possible backing-up. * * When we actually see the EOF, we change the status to "new" * (via yyrestart()), so that the user can continue scanning by * just pointing yyin at a new input file. */ #define YY_BUFFER_EOF_PENDING 2 }; #endif /* !YY_STRUCT_YY_BUFFER_STATE */ /* %if-c-only Standard (non-C++) definition */ /* %not-for-header */ /* %if-not-reentrant */ /* Stack of input buffers. */ static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */ /* %endif */ /* %ok-for-header */ /* %endif */ /* We provide macros for accessing buffer states in case in the * future we want to put the buffer states in a more general * "scanner state". * * Returns the top of the stack, or NULL. */ #define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ : NULL) /* Same as previous macro, but useful when we know that the buffer stack is not * NULL or when we need an lvalue. For internal use only. */ #define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] /* %if-c-only Standard (non-C++) definition */ /* %if-not-reentrant */ /* %not-for-header */ /* yy_hold_char holds the character lost when yytext is formed. */ static char yy_hold_char; static int yy_n_chars; /* number of characters read into yy_ch_buf */ int yyleng; /* Points to current character in buffer. */ static char *yy_c_buf_p = (char *) 0; static int yy_init = 0; /* whether we need to initialize */ static int yy_start = 0; /* start state number */ /* Flag which is used to allow yywrap()'s to do buffer switches * instead of setting up a fresh yyin. A bit of a hack ... */ static int yy_did_buffer_switch_on_eof; /* %ok-for-header */ /* %endif */ void yyrestart (FILE *input_file ); void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); void yy_delete_buffer (YY_BUFFER_STATE b ); void yy_flush_buffer (YY_BUFFER_STATE b ); void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); void yypop_buffer_state (void ); static void yyensure_buffer_stack (void ); static void yy_load_buffer_state (void ); static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); #define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len ); /* %endif */ void *yyalloc (yy_size_t ); void *yyrealloc (void *,yy_size_t ); void yyfree (void * ); #define yy_new_buffer yy_create_buffer #define yy_set_interactive(is_interactive) \ { \ if ( ! YY_CURRENT_BUFFER ){ \ yyensure_buffer_stack (); \ YY_CURRENT_BUFFER_LVALUE = \ yy_create_buffer(yyin,YY_BUF_SIZE ); \ } \ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ } #define yy_set_bol(at_bol) \ { \ if ( ! YY_CURRENT_BUFFER ){\ yyensure_buffer_stack (); \ YY_CURRENT_BUFFER_LVALUE = \ yy_create_buffer(yyin,YY_BUF_SIZE ); \ } \ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ } #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) /* %% [1.0] yytext/yyin/yyout/yy_state_type/yylineno etc. def's & init go here */ /* Begin user sect3 */ #define FLEX_DEBUG typedef unsigned char YY_CHAR; FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; typedef int yy_state_type; extern int yylineno; int yylineno = 1; extern char *yytext; #define yytext_ptr yytext /* %if-c-only Standard (non-C++) definition */ static yy_state_type yy_get_previous_state (void ); static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); static int yy_get_next_buffer (void ); static void yy_fatal_error (yyconst char msg[] ); /* %endif */ /* Done after the current pattern has been matched and before the * corresponding action - sets up yytext. */ #define YY_DO_BEFORE_ACTION \ (yytext_ptr) = yy_bp; \ /* %% [2.0] code to fiddle yytext and yyleng for yymore() goes here \ */\ yyleng = (size_t) (yy_cp - yy_bp); \ (yy_hold_char) = *yy_cp; \ *yy_cp = '\0'; \ /* %% [3.0] code to copy yytext_ptr to yytext[] goes here, if %array \ */\ (yy_c_buf_p) = yy_cp; /* %% [4.0] data tables for the DFA and the user's section 1 definitions go here */ #define YY_NUM_RULES 47 #define YY_END_OF_BUFFER 48 /* This struct is not used in this scanner, but its presence is necessary. */ struct yy_trans_info { flex_int32_t yy_verify; flex_int32_t yy_nxt; }; static yyconst flex_int16_t yy_accept[163] = { 0, 0, 0, 0, 0, 48, 47, 1, 37, 3, 35, 2, 36, 47, 46, 38, 45, 1, 3, 2, 36, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 45, 43, 41, 42, 39, 40, 0, 0, 0, 0, 0, 0, 0, 0, 24, 0, 0, 0, 0, 0, 23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 27, 0, 25, 17, 0, 0, 20, 22, 30, 0, 0, 0, 0, 0, 0, 19, 0, 0, 7, 0, 29, 0, 0, 26, 13, 0, 0, 0, 0, 14, 0, 0, 0, 0, 18, 0, 0, 0, 0, 0, 16, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 9, 0, 21, 8, 31, 6, 0, 0, 34, 0, 0, 28, 0, 0, 32, 33, 4, 0, 15, 12, 0, 0, 0, 0, 0, 0, 0, 11, 0 } ; static yyconst flex_int32_t yy_ec[256] = { 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 4, 5, 1, 1, 1, 1, 6, 6, 1, 1, 1, 1, 1, 1, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 9, 1, 1, 10, 1, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } ; static yyconst flex_int32_t yy_meta[36] = { 0, 1, 1, 1, 1, 1, 1, 2, 2, 1, 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 } ; static yyconst flex_int16_t yy_base[166] = { 0, 0, 10, 18, 20, 180, 181, 23, 181, 172, 181, 171, 0, 19, 181, 181, 46, 34, 170, 169, 0, 10, 29, 34, 156, 147, 148, 23, 48, 46, 3, 160, 38, 34, 136, 181, 163, 181, 181, 181, 181, 181, 140, 138, 142, 141, 154, 153, 44, 40, 181, 135, 132, 129, 44, 135, 181, 129, 136, 58, 147, 136, 124, 129, 68, 141, 126, 132, 122, 136, 126, 123, 117, 119, 130, 117, 123, 118, 181, 115, 181, 181, 113, 120, 181, 181, 181, 65, 122, 107, 118, 104, 114, 181, 119, 114, 181, 109, 181, 116, 99, 181, 181, 116, 112, 114, 105, 181, 98, 88, 86, 107, 181, 91, 99, 93, 105, 91, 181, 96, 181, 83, 97, 89, 96, 95, 82, 81, 76, 94, 91, 86, 73, 181, 181, 88, 181, 181, 181, 181, 66, 78, 181, 69, 80, 181, 74, 70, 181, 181, 181, 73, 181, 181, 67, 56, 58, 72, 52, 68, 28, 181, 181, 96, 98, 6 } ; static yyconst flex_int16_t yy_def[166] = { 0, 163, 163, 164, 164, 162, 162, 162, 162, 162, 162, 162, 165, 162, 162, 162, 162, 162, 162, 162, 165, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 0, 162, 162, 162 } ; static yyconst flex_int16_t yy_nxt[217] = { 0, 6, 7, 7, 8, 9, 10, 11, 20, 6, 13, 6, 7, 7, 8, 9, 10, 11, 59, 6, 13, 6, 15, 6, 15, 17, 17, 16, 60, 16, 21, 22, 23, 24, 25, 26, 17, 17, 27, 42, 43, 28, 29, 30, 31, 32, 161, 52, 33, 34, 35, 44, 53, 36, 45, 37, 47, 46, 38, 48, 62, 57, 39, 54, 64, 65, 63, 73, 74, 75, 40, 80, 76, 55, 81, 85, 41, 58, 56, 91, 109, 160, 159, 158, 157, 156, 155, 154, 153, 152, 151, 86, 150, 149, 148, 110, 92, 12, 12, 14, 14, 147, 146, 145, 144, 143, 142, 141, 140, 139, 138, 137, 136, 135, 134, 133, 132, 131, 130, 129, 128, 127, 126, 125, 124, 123, 122, 121, 120, 119, 118, 117, 116, 115, 114, 113, 112, 111, 108, 107, 106, 105, 104, 103, 102, 101, 100, 99, 98, 97, 96, 95, 94, 93, 90, 89, 88, 87, 84, 83, 82, 79, 78, 77, 72, 71, 70, 69, 68, 67, 36, 66, 61, 51, 50, 49, 19, 18, 19, 18, 162, 5, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162 } ; static yyconst flex_int16_t yy_chk[217] = { 0, 1, 1, 1, 1, 1, 1, 1, 165, 1, 1, 2, 2, 2, 2, 2, 2, 2, 30, 2, 2, 3, 3, 4, 4, 7, 7, 3, 30, 4, 13, 13, 13, 13, 13, 13, 17, 17, 13, 21, 21, 13, 13, 13, 13, 13, 160, 27, 13, 13, 16, 22, 27, 16, 22, 16, 23, 22, 16, 23, 32, 29, 16, 28, 33, 33, 32, 48, 48, 49, 16, 54, 49, 28, 54, 59, 16, 29, 28, 64, 87, 159, 158, 157, 156, 155, 154, 151, 147, 146, 144, 59, 143, 141, 140, 87, 64, 163, 163, 164, 164, 135, 132, 131, 130, 129, 128, 127, 126, 125, 124, 123, 122, 121, 119, 117, 116, 115, 114, 113, 111, 110, 109, 108, 106, 105, 104, 103, 100, 99, 97, 95, 94, 92, 91, 90, 89, 88, 83, 82, 79, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 63, 62, 61, 60, 58, 57, 55, 53, 52, 51, 47, 46, 45, 44, 43, 42, 36, 34, 31, 26, 25, 24, 19, 18, 11, 9, 5, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162 } ; static yy_state_type yy_last_accepting_state; static char *yy_last_accepting_cpos; extern int yy_flex_debug; int yy_flex_debug = 1; static yyconst flex_int16_t yy_rule_linenum[47] = { 0, 77, 78, 81, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 116, 119, 131, 133, 143, 144, 145, 146, 147, 148, 150, 155 } ; /* The intent behind this definition is that it'll catch * any uses of REJECT which flex missed. */ #define REJECT reject_used_but_not_detected #define yymore() yymore_used_but_not_detected #define YY_MORE_ADJ 0 #define YY_RESTORE_YY_MORE_OFFSET char *yytext; #line 1 "ast.flex" /* * A scanner definition for COOL ASTs. */ #line 5 "ast.flex" #include "ast-parse.h" #include "stringtab.h" #include "utilities.h" /* The compiler assumes these identifiers. */ #define yylval ast_yylval #define yylex ast_yylex /* Max size of string constants */ #define MAX_STR_CONST 1025 #define YY_NO_UNPUT /* keep g++ happy */ #define yywrap() 1 extern FILE *ast_file; /* we read from this file */ #define yy_fread fread // bhackett: // uncomment the following to get line # tracking during parsing // for debugging purposes. the change to YY_READ_BUF_SIZE is a hack // so that the lexer's position will be somewhere close to the parser // rather than having skipped ahead hundreds of lines /* #define YY_READ_BUF_SIZE 20 extern int current_line; int fread_track_line(void *ptr, size_t size, size_t nitems, FILE *stream) { int result = fread(ptr, size, nitems, stream); if (result < 0) return result; assert(size == 1); char *buf = (char*)ptr; for (int pos = 0; pos < result; pos++) { if (buf[pos] == '\n') current_line++; } return result; } #undef yy_fread #define yy_fread fread_track_line */ /* define YY_INPUT so we read from the FILE fin: * This change makes it possible to use this scanner in * the Cool compiler. */ #undef YY_INPUT #define YY_INPUT(buf,result,max_size) \ if ( (result = yy_fread( (char*)buf, sizeof(char), max_size, ast_file)) < 0) \ YY_FATAL_ERROR( "read() in flex scanner failed"); char string_buf[MAX_STR_CONST]; /* to assemble string constants */ char *string_buf_ptr; extern int verbose_flag; extern YYSTYPE ast_yylval; YYSTYPE cool_yylval; /* needed to link ast code with utilities.cc */ #line 717 "ast-lex.cc" #define INITIAL 0 #define STRING 1 #ifndef YY_NO_UNISTD_H /* Special case for "unistd.h", since it is non-ANSI. We include it way * down here because we want the user's section 1 to have been scanned first. * The user has a chance to override it with an option. */ /* %if-c-only */ #include /* %endif */ /* %if-c++-only */ /* %endif */ #endif #ifndef YY_EXTRA_TYPE #define YY_EXTRA_TYPE void * #endif /* %if-c-only Reentrant structure and macros (non-C++). */ /* %if-reentrant */ /* %if-c-only */ static int yy_init_globals (void ); /* %endif */ /* %if-reentrant */ /* %endif */ /* %if-bison-bridge */ /* %endif */ /* %endif End reentrant structures and macros. */ /* Macros after this point can all be overridden by user definitions in * section 1. */ #ifndef YY_SKIP_YYWRAP #ifdef __cplusplus //extern "C" int yywrap (void ); #else //extern int yywrap (void ); #endif #endif /* %not-for-header */ static void yyunput (int c,char *buf_ptr ); /* %ok-for-header */ /* %endif */ #ifndef yytext_ptr static void yy_flex_strncpy (char *,yyconst char *,int ); #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen (yyconst char * ); #endif #ifndef YY_NO_INPUT /* %if-c-only Standard (non-C++) definition */ /* %not-for-header */ #ifdef __cplusplus static int yyinput (void ); #else static int input (void ); #endif /* %ok-for-header */ /* %endif */ #endif /* %if-c-only */ /* %endif */ /* Amount of stuff to slurp up with each read. */ #ifndef YY_READ_BUF_SIZE #define YY_READ_BUF_SIZE 8192 #endif /* Copy whatever the last rule matched to the standard output. */ #ifndef ECHO /* %if-c-only Standard (non-C++) definition */ /* This used to be an fputs(), but since the string might contain NUL's, * we now use fwrite(). */ #define ECHO fwrite( yytext, yyleng, 1, yyout ) /* %endif */ /* %if-c++-only C++ definition */ /* %endif */ #endif /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, * is returned in "result". */ #ifndef YY_INPUT #define YY_INPUT(buf,result,max_size) \ /* %% [5.0] fread()/read() definition of YY_INPUT goes here unless we're doing C++ \ */\ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ { \ int c = '*'; \ int n; \ for ( n = 0; n < max_size && \ (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ buf[n] = (char) c; \ if ( c == '\n' ) \ buf[n++] = (char) c; \ if ( c == EOF && ferror( yyin ) ) \ YY_FATAL_ERROR( "input in flex scanner failed" ); \ result = n; \ } \ else \ { \ errno=0; \ while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ { \ if( errno != EINTR) \ { \ YY_FATAL_ERROR( "input in flex scanner failed" ); \ break; \ } \ errno=0; \ clearerr(yyin); \ } \ }\ \ /* %if-c++-only C++ definition \ */\ /* %endif */ #endif /* No semi-colon after return; correct usage is to write "yyterminate();" - * we don't want an extra ';' after the "return" because that will cause * some compilers to complain about unreachable statements. */ #ifndef yyterminate #define yyterminate() return YY_NULL #endif /* Number of entries by which start-condition stack grows. */ #ifndef YY_START_STACK_INCR #define YY_START_STACK_INCR 25 #endif /* Report a fatal error. */ #ifndef YY_FATAL_ERROR /* %if-c-only */ #define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) /* %endif */ /* %if-c++-only */ /* %endif */ #endif /* %if-tables-serialization structures and prototypes */ /* %not-for-header */ /* %ok-for-header */ /* %not-for-header */ /* %tables-yydmap generated elements */ /* %endif */ /* end tables serialization structures and prototypes */ /* %ok-for-header */ /* Default declaration of generated scanner - a define so the user can * easily add parameters. */ #ifndef YY_DECL #define YY_DECL_IS_OURS 1 /* %if-c-only Standard (non-C++) definition */ extern int yylex (void); #define YY_DECL int yylex (void) /* %endif */ /* %if-c++-only C++ definition */ /* %endif */ #endif /* !YY_DECL */ /* Code executed at the beginning of each rule, after yytext and yyleng * have been set up. */ #ifndef YY_USER_ACTION #define YY_USER_ACTION #endif /* Code executed at the end of each rule. */ #ifndef YY_BREAK #define YY_BREAK break; #endif /* %% [6.0] YY_RULE_SETUP definition goes here */ #define YY_RULE_SETUP \ YY_USER_ACTION /* %not-for-header */ /** The main scanner function which does all the work. */ YY_DECL { register yy_state_type yy_current_state; register char *yy_cp, *yy_bp; register int yy_act; /* %% [7.0] user's declarations go here */ #line 75 "ast.flex" #line 933 "ast-lex.cc" if ( !(yy_init) ) { (yy_init) = 1; #ifdef YY_USER_INIT YY_USER_INIT; #endif if ( ! (yy_start) ) (yy_start) = 1; /* first start state */ if ( ! yyin ) /* %if-c-only */ yyin = stdin; /* %endif */ /* %if-c++-only */ /* %endif */ if ( ! yyout ) /* %if-c-only */ yyout = stdout; /* %endif */ /* %if-c++-only */ /* %endif */ if ( ! YY_CURRENT_BUFFER ) { yyensure_buffer_stack (); YY_CURRENT_BUFFER_LVALUE = yy_create_buffer(yyin,YY_BUF_SIZE ); } yy_load_buffer_state( ); } while ( 1 ) /* loops until end-of-file is reached */ { /* %% [8.0] yymore()-related code goes here */ yy_cp = (yy_c_buf_p); /* Support of yytext. */ *yy_cp = (yy_hold_char); /* yy_bp points to the position in yy_ch_buf of the start of * the current run. */ yy_bp = yy_cp; /* %% [9.0] code to set up and find next match goes here */ yy_current_state = (yy_start); yy_match: do { register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; if ( yy_accept[yy_current_state] ) { (yy_last_accepting_state) = yy_current_state; (yy_last_accepting_cpos) = yy_cp; } while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = (int) yy_def[yy_current_state]; if ( yy_current_state >= 163 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; ++yy_cp; } while ( yy_base[yy_current_state] != 181 ); yy_find_action: /* %% [10.0] code to find the action number goes here */ yy_act = yy_accept[yy_current_state]; if ( yy_act == 0 ) { /* have to back up */ yy_cp = (yy_last_accepting_cpos); yy_current_state = (yy_last_accepting_state); yy_act = yy_accept[yy_current_state]; } YY_DO_BEFORE_ACTION; /* %% [11.0] code for yylineno update goes here */ do_action: /* This label is used only to access EOF actions. */ /* %% [12.0] debug code goes here */ if ( yy_flex_debug ) { if ( yy_act == 0 ) fprintf( stderr, "--scanner backing up\n" ); else if ( yy_act < 47 ) fprintf( stderr, "--accepting rule at line %ld (\"%s\")\n", (long)yy_rule_linenum[yy_act], yytext ); else if ( yy_act == 47 ) fprintf( stderr, "--accepting default rule (\"%s\")\n", yytext ); else if ( yy_act == 48 ) fprintf( stderr, "--(end of buffer or a NUL)\n" ); else fprintf( stderr, "--EOF (start condition %d)\n", YY_START ); } switch ( yy_act ) { /* beginning of action switch */ /* %% [13.0] actions go here */ case 0: /* must back up */ /* undo the effects of YY_DO_BEFORE_ACTION */ *yy_cp = (yy_hold_char); yy_cp = (yy_last_accepting_cpos); yy_current_state = (yy_last_accepting_state); goto yy_find_action; case 1: /* rule 1 can match eol */ YY_RULE_SETUP #line 77 "ast.flex" {} YY_BREAK case 2: YY_RULE_SETUP #line 78 "ast.flex" { yylval.symbol = inttable.add_string(yytext,yyleng); return (INT_CONST); } YY_BREAK case 3: YY_RULE_SETUP #line 81 "ast.flex" { yylval.lineno = atoi(yytext + 1); return (LINENO); } YY_BREAK case 4: YY_RULE_SETUP #line 84 "ast.flex" { return(PROGRAM); } YY_BREAK case 5: YY_RULE_SETUP #line 85 "ast.flex" { return(CLASS); } YY_BREAK case 6: YY_RULE_SETUP #line 86 "ast.flex" { return(METHOD); } YY_BREAK case 7: YY_RULE_SETUP #line 87 "ast.flex" { return(ATTR); } YY_BREAK case 8: YY_RULE_SETUP #line 88 "ast.flex" { return(FORMAL); } YY_BREAK case 9: YY_RULE_SETUP #line 89 "ast.flex" { return(BRANCH); } YY_BREAK case 10: YY_RULE_SETUP #line 90 "ast.flex" { return(ASSIGN); } YY_BREAK case 11: YY_RULE_SETUP #line 91 "ast.flex" { return(STATIC_DISPATCH); } YY_BREAK case 12: YY_RULE_SETUP #line 92 "ast.flex" { return(DISPATCH); } YY_BREAK case 13: YY_RULE_SETUP #line 93 "ast.flex" { return(COND); } YY_BREAK case 14: YY_RULE_SETUP #line 94 "ast.flex" { return(LOOP); } YY_BREAK case 15: YY_RULE_SETUP #line 95 "ast.flex" { return(TYPCASE); } YY_BREAK case 16: YY_RULE_SETUP #line 96 "ast.flex" { return(BLOCK); } YY_BREAK case 17: YY_RULE_SETUP #line 97 "ast.flex" { return(LET); } YY_BREAK case 18: YY_RULE_SETUP #line 98 "ast.flex" { return(PLUS); } YY_BREAK case 19: YY_RULE_SETUP #line 99 "ast.flex" { return(SUB); } YY_BREAK case 20: YY_RULE_SETUP #line 100 "ast.flex" { return(MUL); } YY_BREAK case 21: YY_RULE_SETUP #line 101 "ast.flex" { return(DIVIDE); } YY_BREAK case 22: YY_RULE_SETUP #line 102 "ast.flex" { return(NEG); } YY_BREAK case 23: YY_RULE_SETUP #line 103 "ast.flex" { return(LT); } YY_BREAK case 24: YY_RULE_SETUP #line 104 "ast.flex" { return(EQ); } YY_BREAK case 25: YY_RULE_SETUP #line 105 "ast.flex" { return(LEQ); } YY_BREAK case 26: YY_RULE_SETUP #line 106 "ast.flex" { return(COMP); } YY_BREAK case 27: YY_RULE_SETUP #line 107 "ast.flex" { return(INT); } YY_BREAK case 28: YY_RULE_SETUP #line 108 "ast.flex" { return(STR); } YY_BREAK case 29: YY_RULE_SETUP #line 109 "ast.flex" { return(BOOL); } YY_BREAK case 30: YY_RULE_SETUP #line 110 "ast.flex" { return(NEW); } YY_BREAK case 31: YY_RULE_SETUP #line 111 "ast.flex" { return(ISVOID); } YY_BREAK case 32: YY_RULE_SETUP #line 112 "ast.flex" { return(NO_EXPR); } YY_BREAK case 33: YY_RULE_SETUP #line 113 "ast.flex" { return(NO_TYPE); } YY_BREAK case 34: YY_RULE_SETUP #line 114 "ast.flex" { return(OBJECT); } YY_BREAK case 35: YY_RULE_SETUP #line 116 "ast.flex" { return(*yytext); } YY_BREAK case 36: YY_RULE_SETUP #line 119 "ast.flex" { yylval.symbol = idtable.add_string(yytext, yyleng); return (ID); } YY_BREAK /* * String constants (C syntax, taken from lexdoc(1) ) * Escape sequence \c is accepted for all characters c. Except for * \n \t \b \f, the result is c. * */ case 37: YY_RULE_SETUP #line 131 "ast.flex" string_buf_ptr = string_buf; BEGIN(STRING); YY_BREAK case 38: YY_RULE_SETUP #line 133 "ast.flex" { /* saw closing quote - all done */ BEGIN(INITIAL); *string_buf_ptr = '\0'; yylval.symbol = stringtable.add_string(string_buf,MAX_STR_CONST); return (STR_CONST); } YY_BREAK case 39: YY_RULE_SETUP #line 143 "ast.flex" { *string_buf_ptr++ = '\n'; } YY_BREAK case 40: YY_RULE_SETUP #line 144 "ast.flex" { *string_buf_ptr++ = '\t'; } YY_BREAK case 41: YY_RULE_SETUP #line 145 "ast.flex" { *string_buf_ptr++ = '\b'; } YY_BREAK case 42: YY_RULE_SETUP #line 146 "ast.flex" { *string_buf_ptr++ = '\f'; } YY_BREAK case 43: YY_RULE_SETUP #line 147 "ast.flex" { *string_buf_ptr++ = '\\'; } YY_BREAK case 44: YY_RULE_SETUP #line 148 "ast.flex" { *string_buf_ptr++ = '\"'; } YY_BREAK case 45: YY_RULE_SETUP #line 150 "ast.flex" { /* unprintable characters are represented as octal numbers */ *string_buf_ptr++ = strtol(yytext+1,0,8); } YY_BREAK case 46: YY_RULE_SETUP #line 155 "ast.flex" { *string_buf_ptr++ = yytext[0]; } YY_BREAK case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(STRING): #line 157 "ast.flex" { yyterminate(); } YY_BREAK case 47: YY_RULE_SETUP #line 159 "ast.flex" ECHO; YY_BREAK #line 1308 "ast-lex.cc" case YY_END_OF_BUFFER: { /* Amount of text matched not including the EOB char. */ int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; /* Undo the effects of YY_DO_BEFORE_ACTION. */ *yy_cp = (yy_hold_char); YY_RESTORE_YY_MORE_OFFSET if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) { /* We're scanning a new file or input source. It's * possible that this happened because the user * just pointed yyin at a new source and called * yylex(). If so, then we have to assure * consistency between YY_CURRENT_BUFFER and our * globals. Here is the right place to do so, because * this is the first action (other than possibly a * back-up) that will match for the new input source. */ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; } /* Note that here we test for yy_c_buf_p "<=" to the position * of the first EOB in the buffer, since yy_c_buf_p will * already have been incremented past the NUL character * (since all states make transitions on EOB to the * end-of-buffer state). Contrast this with the test * in input(). */ if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) { /* This was really a NUL. */ yy_state_type yy_next_state; (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state( ); /* Okay, we're now positioned to make the NUL * transition. We couldn't have * yy_get_previous_state() go ahead and do it * for us because it doesn't know how to deal * with the possibility of jamming (and we don't * want to build jamming into it because then it * will run more slowly). */ yy_next_state = yy_try_NUL_trans( yy_current_state ); yy_bp = (yytext_ptr) + YY_MORE_ADJ; if ( yy_next_state ) { /* Consume the NUL. */ yy_cp = ++(yy_c_buf_p); yy_current_state = yy_next_state; goto yy_match; } else { /* %% [14.0] code to do back-up for compressed tables and set up yy_cp goes here */ yy_cp = (yy_c_buf_p); goto yy_find_action; } } else switch ( yy_get_next_buffer( ) ) { case EOB_ACT_END_OF_FILE: { (yy_did_buffer_switch_on_eof) = 0; if ( yywrap( ) ) { /* Note: because we've taken care in * yy_get_next_buffer() to have set up * yytext, we can now set up * yy_c_buf_p so that if some total * hoser (like flex itself) wants to * call the scanner after we return the * YY_NULL, it'll still work - another * YY_NULL will get returned. */ (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; yy_act = YY_STATE_EOF(YY_START); goto do_action; } else { if ( ! (yy_did_buffer_switch_on_eof) ) YY_NEW_FILE; } break; } case EOB_ACT_CONTINUE_SCAN: (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state( ); yy_cp = (yy_c_buf_p); yy_bp = (yytext_ptr) + YY_MORE_ADJ; goto yy_match; case EOB_ACT_LAST_MATCH: (yy_c_buf_p) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; yy_current_state = yy_get_previous_state( ); yy_cp = (yy_c_buf_p); yy_bp = (yytext_ptr) + YY_MORE_ADJ; goto yy_find_action; } break; } default: YY_FATAL_ERROR( "fatal flex scanner internal error--no action found" ); } /* end of action switch */ } /* end of scanning one token */ } /* end of yylex */ /* %ok-for-header */ /* %if-c++-only */ /* %not-for-header */ /* %ok-for-header */ /* %endif */ /* yy_get_next_buffer - try to read in a new buffer * * Returns a code representing an action: * EOB_ACT_LAST_MATCH - * EOB_ACT_CONTINUE_SCAN - continue scanning from current position * EOB_ACT_END_OF_FILE - end of file */ /* %if-c-only */ static int yy_get_next_buffer (void) /* %endif */ /* %if-c++-only */ /* %endif */ { register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; register char *source = (yytext_ptr); register int number_to_move, i; int ret_val; if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) YY_FATAL_ERROR( "fatal flex scanner internal error--end of buffer missed" ); if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) { /* Don't try to fill the buffer, so this is an EOF. */ if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) { /* We matched a single character, the EOB, so * treat this as a final EOF. */ return EOB_ACT_END_OF_FILE; } else { /* We matched some text prior to the EOB, first * process it. */ return EOB_ACT_LAST_MATCH; } } /* Try to read more data. */ /* First move last chars to start of buffer. */ number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1; for ( i = 0; i < number_to_move; ++i ) *(dest++) = *(source++); if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) /* don't do the read, it's not guaranteed to return an EOF, * just force an EOF */ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; else { int num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; while ( num_to_read <= 0 ) { /* Not enough room in the buffer - grow it. */ /* just a shorter name for the current buffer */ YY_BUFFER_STATE b = YY_CURRENT_BUFFER; int yy_c_buf_p_offset = (int) ((yy_c_buf_p) - b->yy_ch_buf); if ( b->yy_is_our_buffer ) { int new_size = b->yy_buf_size * 2; if ( new_size <= 0 ) b->yy_buf_size += b->yy_buf_size / 8; else b->yy_buf_size *= 2; b->yy_ch_buf = (char *) /* Include room in for 2 EOB chars. */ yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ); } else /* Can't grow it, we don't own it. */ b->yy_ch_buf = 0; if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" ); (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; } if ( num_to_read > YY_READ_BUF_SIZE ) num_to_read = YY_READ_BUF_SIZE; /* Read in more data. */ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), (yy_n_chars), (size_t) num_to_read ); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); } if ( (yy_n_chars) == 0 ) { if ( number_to_move == YY_MORE_ADJ ) { ret_val = EOB_ACT_END_OF_FILE; yyrestart(yyin ); } else { ret_val = EOB_ACT_LAST_MATCH; YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_EOF_PENDING; } } else ret_val = EOB_ACT_CONTINUE_SCAN; if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { /* Extend the array by 50%, plus the number we really need. */ yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ); if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); } (yy_n_chars) += number_to_move; YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; return ret_val; } /* yy_get_previous_state - get the state just before the EOB char was reached */ /* %if-c-only */ /* %not-for-header */ static yy_state_type yy_get_previous_state (void) /* %endif */ /* %if-c++-only */ /* %endif */ { register yy_state_type yy_current_state; register char *yy_cp; /* %% [15.0] code to get the start state into yy_current_state goes here */ yy_current_state = (yy_start); for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) { /* %% [16.0] code to find the next state goes here */ register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); if ( yy_accept[yy_current_state] ) { (yy_last_accepting_state) = yy_current_state; (yy_last_accepting_cpos) = yy_cp; } while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = (int) yy_def[yy_current_state]; if ( yy_current_state >= 163 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; } return yy_current_state; } /* yy_try_NUL_trans - try to make a transition on the NUL character * * synopsis * next_state = yy_try_NUL_trans( current_state ); */ /* %if-c-only */ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) /* %endif */ /* %if-c++-only */ /* %endif */ { register int yy_is_jam; /* %% [17.0] code to find the next state, and perhaps do backing up, goes here */ register char *yy_cp = (yy_c_buf_p); register YY_CHAR yy_c = 1; if ( yy_accept[yy_current_state] ) { (yy_last_accepting_state) = yy_current_state; (yy_last_accepting_cpos) = yy_cp; } while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = (int) yy_def[yy_current_state]; if ( yy_current_state >= 163 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; yy_is_jam = (yy_current_state == 162); return yy_is_jam ? 0 : yy_current_state; } /* %if-c-only */ static void yyunput (int c, register char * yy_bp ) /* %endif */ /* %if-c++-only */ /* %endif */ { register char *yy_cp; yy_cp = (yy_c_buf_p); /* undo effects of setting up yytext */ *yy_cp = (yy_hold_char); if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) { /* need to shift things up to make room */ /* +2 for EOB chars. */ register int number_to_move = (yy_n_chars) + 2; register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; register char *source = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) *--dest = *--source; yy_cp += (int) (dest - source); yy_bp += (int) (dest - source); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size; if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) YY_FATAL_ERROR( "flex scanner push-back overflow" ); } *--yy_cp = (char) c; /* %% [18.0] update yylineno here */ (yytext_ptr) = yy_bp; (yy_hold_char) = *yy_cp; (yy_c_buf_p) = yy_cp; } /* %if-c-only */ /* %endif */ /* %if-c-only */ #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput (void) #else static int input (void) #endif /* %endif */ /* %if-c++-only */ /* %endif */ { int c; *(yy_c_buf_p) = (yy_hold_char); if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) { /* yy_c_buf_p now points to the character we want to return. * If this occurs *before* the EOB characters, then it's a * valid NUL; if not, then we've hit the end of the buffer. */ if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) /* This was really a NUL. */ *(yy_c_buf_p) = '\0'; else { /* need more input */ int offset = (yy_c_buf_p) - (yytext_ptr); ++(yy_c_buf_p); switch ( yy_get_next_buffer( ) ) { case EOB_ACT_LAST_MATCH: /* This happens because yy_g_n_b() * sees that we've accumulated a * token and flags that we need to * try matching the token before * proceeding. But for input(), * there's no matching to consider. * So convert the EOB_ACT_LAST_MATCH * to EOB_ACT_END_OF_FILE. */ /* Reset buffer status. */ yyrestart(yyin ); /*FALLTHROUGH*/ case EOB_ACT_END_OF_FILE: { if ( yywrap( ) ) return EOF; if ( ! (yy_did_buffer_switch_on_eof) ) YY_NEW_FILE; #ifdef __cplusplus return yyinput(); #else return input(); #endif } case EOB_ACT_CONTINUE_SCAN: (yy_c_buf_p) = (yytext_ptr) + offset; break; } } } c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ *(yy_c_buf_p) = '\0'; /* preserve yytext */ (yy_hold_char) = *++(yy_c_buf_p); /* %% [19.0] update BOL and yylineno */ return c; } /* %if-c-only */ #endif /* ifndef YY_NO_INPUT */ /* %endif */ /** Immediately switch to a different input stream. * @param input_file A readable stream. * * @note This function does not reset the start condition to @c INITIAL . */ /* %if-c-only */ void yyrestart (FILE * input_file ) /* %endif */ /* %if-c++-only */ /* %endif */ { if ( ! YY_CURRENT_BUFFER ){ yyensure_buffer_stack (); YY_CURRENT_BUFFER_LVALUE = yy_create_buffer(yyin,YY_BUF_SIZE ); } yy_init_buffer(YY_CURRENT_BUFFER,input_file ); yy_load_buffer_state( ); } /** Switch to a different input buffer. * @param new_buffer The new input buffer. * */ /* %if-c-only */ void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) /* %endif */ /* %if-c++-only */ /* %endif */ { /* TODO. We should be able to replace this entire function body * with * yypop_buffer_state(); * yypush_buffer_state(new_buffer); */ yyensure_buffer_stack (); if ( YY_CURRENT_BUFFER == new_buffer ) return; if ( YY_CURRENT_BUFFER ) { /* Flush out information for old buffer. */ *(yy_c_buf_p) = (yy_hold_char); YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); } YY_CURRENT_BUFFER_LVALUE = new_buffer; yy_load_buffer_state( ); /* We don't actually know whether we did this switch during * EOF (yywrap()) processing, but the only time this flag * is looked at is after yywrap() is called, so it's safe * to go ahead and always set it. */ (yy_did_buffer_switch_on_eof) = 1; } /* %if-c-only */ static void yy_load_buffer_state (void) /* %endif */ /* %if-c++-only */ /* %endif */ { (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; (yy_hold_char) = *(yy_c_buf_p); } /** Allocate and initialize an input buffer state. * @param file A readable stream. * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. * * @return the allocated buffer state. */ /* %if-c-only */ YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) /* %endif */ /* %if-c++-only */ /* %endif */ { YY_BUFFER_STATE b; b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); b->yy_buf_size = size; /* yy_ch_buf has to be 2 characters longer than the size given because * we need to put in 2 end-of-buffer characters. */ b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 ); if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); b->yy_is_our_buffer = 1; yy_init_buffer(b,file ); return b; } /** Destroy the buffer. * @param b a buffer created with yy_create_buffer() * */ /* %if-c-only */ void yy_delete_buffer (YY_BUFFER_STATE b ) /* %endif */ /* %if-c++-only */ /* %endif */ { if ( ! b ) return; if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; if ( b->yy_is_our_buffer ) yyfree((void *) b->yy_ch_buf ); yyfree((void *) b ); } /* %if-c-only */ #ifndef __cplusplus extern int isatty (int ); #endif /* __cplusplus */ /* %endif */ /* %if-c++-only */ /* %endif */ /* Initializes or reinitializes a buffer. * This function is sometimes called more than once on the same buffer, * such as during a yyrestart() or at EOF. */ /* %if-c-only */ static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) /* %endif */ /* %if-c++-only */ /* %endif */ { int oerrno = errno; yy_flush_buffer(b ); b->yy_input_file = file; b->yy_fill_buffer = 1; /* If b is the current buffer, then yy_init_buffer was _probably_ * called from yyrestart() or through yy_get_next_buffer. * In that case, we don't want to reset the lineno or column. */ if (b != YY_CURRENT_BUFFER){ b->yy_bs_lineno = 1; b->yy_bs_column = 0; } /* %if-c-only */ b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; /* %endif */ /* %if-c++-only */ /* %endif */ errno = oerrno; } /** Discard all buffered characters. On the next scan, YY_INPUT will be called. * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. * */ /* %if-c-only */ void yy_flush_buffer (YY_BUFFER_STATE b ) /* %endif */ /* %if-c++-only */ /* %endif */ { if ( ! b ) return; b->yy_n_chars = 0; /* We always need two end-of-buffer characters. The first causes * a transition to the end-of-buffer state. The second causes * a jam in that state. */ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; b->yy_buf_pos = &b->yy_ch_buf[0]; b->yy_at_bol = 1; b->yy_buffer_status = YY_BUFFER_NEW; if ( b == YY_CURRENT_BUFFER ) yy_load_buffer_state( ); } /* %if-c-or-c++ */ /** Pushes the new state onto the stack. The new state becomes * the current state. This function will allocate the stack * if necessary. * @param new_buffer The new state. * */ /* %if-c-only */ void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) /* %endif */ /* %if-c++-only */ /* %endif */ { if (new_buffer == NULL) return; yyensure_buffer_stack(); /* This block is copied from yy_switch_to_buffer. */ if ( YY_CURRENT_BUFFER ) { /* Flush out information for old buffer. */ *(yy_c_buf_p) = (yy_hold_char); YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); } /* Only push if top exists. Otherwise, replace top. */ if (YY_CURRENT_BUFFER) (yy_buffer_stack_top)++; YY_CURRENT_BUFFER_LVALUE = new_buffer; /* copied from yy_switch_to_buffer. */ yy_load_buffer_state( ); (yy_did_buffer_switch_on_eof) = 1; } /* %endif */ /* %if-c-or-c++ */ /** Removes and deletes the top of the stack, if present. * The next element becomes the new top. * */ /* %if-c-only */ void yypop_buffer_state (void) /* %endif */ /* %if-c++-only */ /* %endif */ { if (!YY_CURRENT_BUFFER) return; yy_delete_buffer(YY_CURRENT_BUFFER ); YY_CURRENT_BUFFER_LVALUE = NULL; if ((yy_buffer_stack_top) > 0) --(yy_buffer_stack_top); if (YY_CURRENT_BUFFER) { yy_load_buffer_state( ); (yy_did_buffer_switch_on_eof) = 1; } } /* %endif */ /* %if-c-or-c++ */ /* Allocates the stack if it does not exist. * Guarantees space for at least one push. */ /* %if-c-only */ static void yyensure_buffer_stack (void) /* %endif */ /* %if-c++-only */ /* %endif */ { int num_to_alloc; if (!(yy_buffer_stack)) { /* First allocation is just for 2 elements, since we don't know if this * scanner will even need a stack. We use 2 instead of 1 to avoid an * immediate realloc on the next call. */ num_to_alloc = 1; (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc (num_to_alloc * sizeof(struct yy_buffer_state*) ); if ( ! (yy_buffer_stack) ) YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); (yy_buffer_stack_max) = num_to_alloc; (yy_buffer_stack_top) = 0; return; } if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ /* Increase the buffer to prepare for a possible push. */ int grow_size = 8 /* arbitrary grow size */; num_to_alloc = (yy_buffer_stack_max) + grow_size; (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc ((yy_buffer_stack), num_to_alloc * sizeof(struct yy_buffer_state*) ); if ( ! (yy_buffer_stack) ) YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); /* zero only the new slots.*/ memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); (yy_buffer_stack_max) = num_to_alloc; } } /* %endif */ /* %if-c-only */ /** Setup the input buffer state to scan directly from a user-specified character buffer. * @param base the character buffer * @param size the size in bytes of the character buffer * * @return the newly allocated buffer state object. */ YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) { YY_BUFFER_STATE b; if ( size < 2 || base[size-2] != YY_END_OF_BUFFER_CHAR || base[size-1] != YY_END_OF_BUFFER_CHAR ) /* They forgot to leave room for the EOB's. */ return 0; b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ b->yy_buf_pos = b->yy_ch_buf = base; b->yy_is_our_buffer = 0; b->yy_input_file = 0; b->yy_n_chars = b->yy_buf_size; b->yy_is_interactive = 0; b->yy_at_bol = 1; b->yy_fill_buffer = 0; b->yy_buffer_status = YY_BUFFER_NEW; yy_switch_to_buffer(b ); return b; } /* %endif */ /* %if-c-only */ /** Setup the input buffer state to scan a string. The next call to yylex() will * scan from a @e copy of @a str. * @param yystr a NUL-terminated string to scan * * @return the newly allocated buffer state object. * @note If you want to scan bytes that may contain NUL values, then use * yy_scan_bytes() instead. */ YY_BUFFER_STATE yy_scan_string (yyconst char * yystr ) { return yy_scan_bytes(yystr,strlen(yystr) ); } /* %endif */ /* %if-c-only */ /** Setup the input buffer state to scan the given bytes. The next call to yylex() will * scan from a @e copy of @a bytes. * @param bytes the byte buffer to scan * @param len the number of bytes in the buffer pointed to by @a bytes. * * @return the newly allocated buffer state object. */ YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, int _yybytes_len ) { YY_BUFFER_STATE b; char *buf; yy_size_t n; int i; /* Get memory for full buffer, including space for trailing EOB's. */ n = _yybytes_len + 2; buf = (char *) yyalloc(n ); if ( ! buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); for ( i = 0; i < _yybytes_len; ++i ) buf[i] = yybytes[i]; buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; b = yy_scan_buffer(buf,n ); if ( ! b ) YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); /* It's okay to grow etc. this buffer, and we should throw it * away when we're done. */ b->yy_is_our_buffer = 1; return b; } /* %endif */ #ifndef YY_EXIT_FAILURE #define YY_EXIT_FAILURE 2 #endif /* %if-c-only */ static void yy_fatal_error (yyconst char* msg ) { (void) fprintf( stderr, "%s\n", msg ); exit( YY_EXIT_FAILURE ); } /* %endif */ /* %if-c++-only */ /* %endif */ /* Redefine yyless() so it works in section 3 code. */ #undef yyless #define yyless(n) \ do \ { \ /* Undo effects of setting up yytext. */ \ int yyless_macro_arg = (n); \ YY_LESS_LINENO(yyless_macro_arg);\ yytext[yyleng] = (yy_hold_char); \ (yy_c_buf_p) = yytext + yyless_macro_arg; \ (yy_hold_char) = *(yy_c_buf_p); \ *(yy_c_buf_p) = '\0'; \ yyleng = yyless_macro_arg; \ } \ while ( 0 ) /* Accessor methods (get/set functions) to struct members. */ /* %if-c-only */ /* %if-reentrant */ /* %endif */ /** Get the current line number. * */ int yyget_lineno (void) { return yylineno; } /** Get the input stream. * */ FILE *yyget_in (void) { return yyin; } /** Get the output stream. * */ FILE *yyget_out (void) { return yyout; } /** Get the length of the current token. * */ int yyget_leng (void) { return yyleng; } /** Get the current token. * */ char *yyget_text (void) { return yytext; } /* %if-reentrant */ /* %endif */ /** Set the current line number. * @param line_number * */ void yyset_lineno (int line_number ) { yylineno = line_number; } /** Set the input stream. This does not discard the current * input buffer. * @param in_str A readable stream. * * @see yy_switch_to_buffer */ void yyset_in (FILE * in_str ) { yyin = in_str ; } void yyset_out (FILE * out_str ) { yyout = out_str ; } int yyget_debug (void) { return yy_flex_debug; } void yyset_debug (int bdebug ) { yy_flex_debug = bdebug ; } /* %endif */ /* %if-reentrant */ /* %if-bison-bridge */ /* %endif */ /* %endif if-c-only */ /* %if-c-only */ static int yy_init_globals (void) { /* Initialization is the same as for the non-reentrant scanner. * This function is called from yylex_destroy(), so don't allocate here. */ (yy_buffer_stack) = 0; (yy_buffer_stack_top) = 0; (yy_buffer_stack_max) = 0; (yy_c_buf_p) = (char *) 0; (yy_init) = 0; (yy_start) = 0; /* Defined in main.c */ #ifdef YY_STDINIT yyin = stdin; yyout = stdout; #else yyin = (FILE *) 0; yyout = (FILE *) 0; #endif /* For future reference: Set errno on error, since we are called by * yylex_init() */ return 0; } /* %endif */ /* %if-c-only SNIP! this currently causes conflicts with the c++ scanner */ /* yylex_destroy is for both reentrant and non-reentrant scanners. */ int yylex_destroy (void) { /* Pop the buffer stack, destroying each element. */ while(YY_CURRENT_BUFFER){ yy_delete_buffer(YY_CURRENT_BUFFER ); YY_CURRENT_BUFFER_LVALUE = NULL; yypop_buffer_state(); } /* Destroy the stack itself. */ yyfree((yy_buffer_stack) ); (yy_buffer_stack) = NULL; /* Reset the globals. This is important in a non-reentrant scanner so the next time * yylex() is called, initialization will occur. */ yy_init_globals( ); /* %if-reentrant */ /* %endif */ return 0; } /* %endif */ /* * Internal utility routines. */ #ifndef yytext_ptr static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) { register int i; for ( i = 0; i < n; ++i ) s1[i] = s2[i]; } #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen (yyconst char * s ) { register int n; for ( n = 0; s[n]; ++n ) ; return n; } #endif void *yyalloc (yy_size_t size ) { return (void *) malloc( size ); } void *yyrealloc (void * ptr, yy_size_t size ) { /* The cast to (char *) in the following accommodates both * implementations that use char* generic pointers, and those * that use void* generic pointers. It works with the latter * because both ANSI C and C++ allow castless assignment from * any pointer type to void*, and deal with argument conversions * as though doing an assignment. */ return (void *) realloc( (char *) ptr, size ); } void yyfree (void * ptr ) { free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ } /* %if-tables-serialization definitions */ /* %define-yytables The name for this specific scanner's tables. */ #define YYTABLES_NAME "yytables" /* %endif */ /* %ok-for-header */ #line 159 "ast.flex"