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archived-pecl-php-ffi/ffi_parser.c
Wez Furlong 23af56403c update my email address. regenerate parser
2010-08-02 00:05:22 +00:00

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/* Driver template for the LEMON parser generator.
** The author disclaims copyright to this source code.
*/
/* First off, code is included that follows the "include" declaration
** in the input grammar file. */
#include <stdio.h>
#line 7 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2004 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_0.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Wez Furlong <wez@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ffi.h"
#include "php_ffi_internal.h"
static const char *get_ident_string(php_ffi_ident id)
{
static char idbuf[256];
memcpy(idbuf, id.val, id.len);
idbuf[id.len] = '\0';
return idbuf;
}
const char *php_ffi_get_token_string(int major, php_ffi_tokentype t)
{
static char tokbuf[512];
char *c;
switch (major) {
case PHP_FFI_TOK_INTRINSIC:
switch (t.type.intrinsic_type) {
case FFI_TYPE_VOID: c = "void"; break;
case FFI_TYPE_INT: c= "int"; break;
case FFI_TYPE_FLOAT: c = "float"; break;
case FFI_TYPE_DOUBLE: c = "double"; break;
#if SIZEOF_LONG_DOUBLE != SIZEOF_DOUBLE
case FFI_TYPE_LONGDOUBLE: c = "long double"; break;
#endif
case FFI_TYPE_UINT8: c = "uint8"; break;
case FFI_TYPE_SINT8: c = "sint8"; break;
case FFI_TYPE_UINT16: c = "uint16"; break;
case FFI_TYPE_SINT16: c = "sint16"; break;
case FFI_TYPE_UINT32: c = "uint32"; break;
case FFI_TYPE_SINT32: c = "sint32"; break;
case FFI_TYPE_UINT64: c = "uint64"; break;
case FFI_TYPE_SINT64: c = "sint64"; break;
case FFI_TYPE_STRUCT: c = "struct"; break;
case FFI_TYPE_POINTER: c = "pointer"; break;
default:
c = "unknown/invalid";
}
sprintf(tokbuf, "intrinsic type %d %s", t.type.intrinsic_type, c);
break;
case PHP_FFI_TOK_STRING:
sprintf(tokbuf, "string: %s", get_ident_string(t.ident));
break;
case PHP_FFI_TOK_IDENT:
sprintf(tokbuf, "identifier: %s", get_ident_string(t.ident));
break;
default:
#if ZEND_DEBUG
sprintf(tokbuf, "token: %s", php_ffi_parserTokenName(major));
#else
sprintf(tokbuf, "token: ???");
#endif
}
return tokbuf;
}
#line 93 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
/* Next is all token values, in a form suitable for use by makeheaders.
** This section will be null unless lemon is run with the -m switch.
*/
/*
** These constants (all generated automatically by the parser generator)
** specify the various kinds of tokens (terminals) that the parser
** understands.
**
** Each symbol here is a terminal symbol in the grammar.
*/
/* Make sure the INTERFACE macro is defined.
*/
#ifndef INTERFACE
# define INTERFACE 1
#endif
/* The next thing included is series of defines which control
** various aspects of the generated parser.
** YYCODETYPE is the data type used for storing terminal
** and nonterminal numbers. "unsigned char" is
** used if there are fewer than 250 terminals
** and nonterminals. "int" is used otherwise.
** YYNOCODE is a number of type YYCODETYPE which corresponds
** to no legal terminal or nonterminal number. This
** number is used to fill in empty slots of the hash
** table.
** YYFALLBACK If defined, this indicates that one or more tokens
** have fall-back values which should be used if the
** original value of the token will not parse.
** YYACTIONTYPE is the data type used for storing terminal
** and nonterminal numbers. "unsigned char" is
** used if there are fewer than 250 rules and
** states combined. "int" is used otherwise.
** php_ffi_parserTOKENTYPE is the data type used for minor tokens given
** directly to the parser from the tokenizer.
** YYMINORTYPE is the data type used for all minor tokens.
** This is typically a union of many types, one of
** which is php_ffi_parserTOKENTYPE. The entry in the union
** for base tokens is called "yy0".
** YYSTACKDEPTH is the maximum depth of the parser's stack. If
** zero the stack is dynamically sized using realloc()
** php_ffi_parserARG_SDECL A static variable declaration for the %extra_argument
** php_ffi_parserARG_PDECL A parameter declaration for the %extra_argument
** php_ffi_parserARG_STORE Code to store %extra_argument into yypParser
** php_ffi_parserARG_FETCH Code to extract %extra_argument from yypParser
** YYNSTATE the combined number of states.
** YYNRULE the number of rules in the grammar
** YYERRORSYMBOL is the code number of the error symbol. If not
** defined, then do no error processing.
*/
#define YYCODETYPE unsigned char
#define YYNOCODE 35
#define YYACTIONTYPE unsigned char
#define php_ffi_parserTOKENTYPE php_ffi_tokentype
typedef union {
int yyinit;
php_ffi_parserTOKENTYPE yy0;
} YYMINORTYPE;
#ifndef YYSTACKDEPTH
#define YYSTACKDEPTH 100
#endif
#define php_ffi_parserARG_SDECL struct php_ffi_def_context *ctx ;
#define php_ffi_parserARG_PDECL , struct php_ffi_def_context *ctx
#define php_ffi_parserARG_FETCH struct php_ffi_def_context *ctx = yypParser->ctx
#define php_ffi_parserARG_STORE yypParser->ctx = ctx
#define YYNSTATE 60
#define YYNRULE 29
#define YY_NO_ACTION (YYNSTATE+YYNRULE+2)
#define YY_ACCEPT_ACTION (YYNSTATE+YYNRULE+1)
#define YY_ERROR_ACTION (YYNSTATE+YYNRULE)
/* The yyzerominor constant is used to initialize instances of
** YYMINORTYPE objects to zero. */
static const YYMINORTYPE yyzerominor = { 0 };
/* Next are the tables used to determine what action to take based on the
** current state and lookahead token. These tables are used to implement
** functions that take a state number and lookahead value and return an
** action integer.
**
** Suppose the action integer is N. Then the action is determined as
** follows
**
** 0 <= N < YYNSTATE Shift N. That is, push the lookahead
** token onto the stack and goto state N.
**
** YYNSTATE <= N < YYNSTATE+YYNRULE Reduce by rule N-YYNSTATE.
**
** N == YYNSTATE+YYNRULE A syntax error has occurred.
**
** N == YYNSTATE+YYNRULE+1 The parser accepts its input.
**
** N == YYNSTATE+YYNRULE+2 No such action. Denotes unused
** slots in the yy_action[] table.
**
** The action table is constructed as a single large table named yy_action[].
** Given state S and lookahead X, the action is computed as
**
** yy_action[ yy_shift_ofst[S] + X ]
**
** If the index value yy_shift_ofst[S]+X is out of range or if the value
** yy_lookahead[yy_shift_ofst[S]+X] is not equal to X or if yy_shift_ofst[S]
** is equal to YY_SHIFT_USE_DFLT, it means that the action is not in the table
** and that yy_default[S] should be used instead.
**
** The formula above is for computing the action when the lookahead is
** a terminal symbol. If the lookahead is a non-terminal (as occurs after
** a reduce action) then the yy_reduce_ofst[] array is used in place of
** the yy_shift_ofst[] array and YY_REDUCE_USE_DFLT is used in place of
** YY_SHIFT_USE_DFLT.
**
** The following are the tables generated in this section:
**
** yy_action[] A single table containing all actions.
** yy_lookahead[] A table containing the lookahead for each entry in
** yy_action. Used to detect hash collisions.
** yy_shift_ofst[] For each state, the offset into yy_action for
** shifting terminals.
** yy_reduce_ofst[] For each state, the offset into yy_action for
** shifting non-terminals after a reduce.
** yy_default[] Default action for each state.
*/
static const YYACTIONTYPE yy_action[] = {
/* 0 */ 90, 15, 1, 40, 41, 42, 43, 32, 29, 33,
/* 10 */ 39, 1, 40, 41, 42, 43, 55, 29, 33, 47,
/* 20 */ 16, 9, 17, 48, 13, 9, 18, 48, 45, 23,
/* 30 */ 21, 11, 21, 14, 19, 3, 50, 3, 28, 25,
/* 40 */ 28, 53, 28, 35, 27, 45, 27, 57, 27, 46,
/* 50 */ 16, 30, 33, 37, 60, 8, 44, 10, 20, 2,
/* 60 */ 49, 22, 24, 7, 51, 4, 91, 26, 34, 52,
/* 70 */ 54, 5, 12, 91, 91, 31, 6, 58, 36, 56,
/* 80 */ 38, 59,
};
static const YYCODETYPE yy_lookahead[] = {
/* 0 */ 18, 19, 20, 21, 22, 23, 24, 29, 30, 27,
/* 10 */ 19, 20, 21, 22, 23, 24, 29, 30, 27, 25,
/* 20 */ 26, 2, 3, 4, 5, 2, 3, 4, 1, 27,
/* 30 */ 27, 12, 27, 14, 31, 32, 31, 32, 27, 28,
/* 40 */ 27, 28, 27, 28, 33, 1, 33, 22, 33, 25,
/* 50 */ 26, 4, 27, 27, 0, 4, 1, 4, 16, 15,
/* 60 */ 8, 4, 4, 13, 8, 6, 34, 7, 4, 8,
/* 70 */ 4, 9, 9, 34, 34, 10, 6, 8, 7, 11,
/* 80 */ 4, 8,
};
#define YY_SHIFT_USE_DFLT (-1)
#define YY_SHIFT_MAX 38
static const signed char yy_shift_ofst[] = {
/* 0 */ 19, 19, 23, 23, 23, 23, 23, 23, 44, 27,
/* 10 */ 27, 47, 47, 23, 23, 54, 55, 51, 53, 42,
/* 20 */ 52, 57, 56, 58, 59, 60, 61, 62, 66, 63,
/* 30 */ 65, 68, 50, 64, 70, 71, 69, 76, 73,
};
#define YY_REDUCE_USE_DFLT (-23)
#define YY_REDUCE_MAX 14
static const signed char yy_reduce_ofst[] = {
/* 0 */ -18, -9, 3, 5, 11, 13, 15, 25, -6, 24,
/* 10 */ -6, -22, -13, 2, 26,
};
static const YYACTIONTYPE yy_default[] = {
/* 0 */ 89, 62, 89, 83, 87, 87, 87, 89, 67, 67,
/* 10 */ 67, 89, 89, 89, 89, 89, 68, 89, 89, 89,
/* 20 */ 89, 89, 89, 89, 89, 89, 89, 86, 89, 76,
/* 30 */ 89, 89, 89, 89, 89, 89, 89, 89, 89, 61,
/* 40 */ 63, 64, 65, 66, 70, 69, 71, 72, 73, 81,
/* 50 */ 82, 84, 74, 85, 88, 75, 77, 78, 79, 80,
};
#define YY_SZ_ACTTAB (int)(sizeof(yy_action)/sizeof(yy_action[0]))
/* The next table maps tokens into fallback tokens. If a construct
** like the following:
**
** %fallback ID X Y Z.
**
** appears in the grammar, then ID becomes a fallback token for X, Y,
** and Z. Whenever one of the tokens X, Y, or Z is input to the parser
** but it does not parse, the type of the token is changed to ID and
** the parse is retried before an error is thrown.
*/
#ifdef YYFALLBACK
static const YYCODETYPE yyFallback[] = {
};
#endif /* YYFALLBACK */
/* The following structure represents a single element of the
** parser's stack. Information stored includes:
**
** + The state number for the parser at this level of the stack.
**
** + The value of the token stored at this level of the stack.
** (In other words, the "major" token.)
**
** + The semantic value stored at this level of the stack. This is
** the information used by the action routines in the grammar.
** It is sometimes called the "minor" token.
*/
struct yyStackEntry {
YYACTIONTYPE stateno; /* The state-number */
YYCODETYPE major; /* The major token value. This is the code
** number for the token at this stack level */
YYMINORTYPE minor; /* The user-supplied minor token value. This
** is the value of the token */
};
typedef struct yyStackEntry yyStackEntry;
/* The state of the parser is completely contained in an instance of
** the following structure */
struct yyParser {
int yyidx; /* Index of top element in stack */
#ifdef YYTRACKMAXSTACKDEPTH
int yyidxMax; /* Maximum value of yyidx */
#endif
int yyerrcnt; /* Shifts left before out of the error */
php_ffi_parserARG_SDECL /* A place to hold %extra_argument */
#if YYSTACKDEPTH<=0
int yystksz; /* Current side of the stack */
yyStackEntry *yystack; /* The parser's stack */
#else
yyStackEntry yystack[YYSTACKDEPTH]; /* The parser's stack */
#endif
};
typedef struct yyParser yyParser;
#ifndef NDEBUG
#include <stdio.h>
static FILE *yyTraceFILE = 0;
static char *yyTracePrompt = 0;
#endif /* NDEBUG */
#ifndef NDEBUG
/*
** Turn parser tracing on by giving a stream to which to write the trace
** and a prompt to preface each trace message. Tracing is turned off
** by making either argument NULL
**
** Inputs:
** <ul>
** <li> A FILE* to which trace output should be written.
** If NULL, then tracing is turned off.
** <li> A prefix string written at the beginning of every
** line of trace output. If NULL, then tracing is
** turned off.
** </ul>
**
** Outputs:
** None.
*/
void php_ffi_parserTrace(FILE *TraceFILE, char *zTracePrompt){
yyTraceFILE = TraceFILE;
yyTracePrompt = zTracePrompt;
if( yyTraceFILE==0 ) yyTracePrompt = 0;
else if( yyTracePrompt==0 ) yyTraceFILE = 0;
}
#endif /* NDEBUG */
#ifndef NDEBUG
/* For tracing shifts, the names of all terminals and nonterminals
** are required. The following table supplies these names */
static const char *const yyTokenName[] = {
"$", "ASTERISK", "INTRINSIC", "STRUCT",
"IDENT", "CALLBACK", "LPAREN", "RPAREN",
"SEMI", "COMMA", "EQUALS", "STRING",
"LSQUARE", "RSQUARE", "TYPEDEF", "LBRACE",
"RBRACE", "error", "top_level", "top_list",
"top_item", "func_proto_with_attributes", "func_proto", "type_def",
"callback_def", "optional_asterisk_list", "asterisk_list", "arg_type",
"arg_list", "func_attribute_list", "func_attribute", "field_list",
"field_def", "argument",
};
#endif /* NDEBUG */
#ifndef NDEBUG
/* For tracing reduce actions, the names of all rules are required.
*/
static const char *const yyRuleName[] = {
/* 0 */ "top_level ::= top_list",
/* 1 */ "top_list ::= top_item top_list",
/* 2 */ "top_list ::= top_item",
/* 3 */ "top_item ::= func_proto_with_attributes",
/* 4 */ "top_item ::= func_proto",
/* 5 */ "top_item ::= type_def",
/* 6 */ "top_item ::= callback_def",
/* 7 */ "optional_asterisk_list ::=",
/* 8 */ "optional_asterisk_list ::= asterisk_list",
/* 9 */ "asterisk_list ::= ASTERISK",
/* 10 */ "asterisk_list ::= asterisk_list ASTERISK",
/* 11 */ "arg_type ::= INTRINSIC optional_asterisk_list",
/* 12 */ "arg_type ::= STRUCT IDENT optional_asterisk_list",
/* 13 */ "arg_type ::= IDENT",
/* 14 */ "callback_def ::= CALLBACK arg_type IDENT LPAREN arg_list RPAREN SEMI",
/* 15 */ "func_attribute_list ::= func_attribute COMMA func_attribute_list",
/* 16 */ "func_attribute_list ::= func_attribute",
/* 17 */ "func_attribute ::= IDENT EQUALS STRING",
/* 18 */ "func_proto_with_attributes ::= LSQUARE func_attribute_list RSQUARE func_proto",
/* 19 */ "func_proto ::= arg_type IDENT LPAREN arg_list RPAREN SEMI",
/* 20 */ "type_def ::= TYPEDEF arg_type IDENT SEMI",
/* 21 */ "type_def ::= STRUCT IDENT LBRACE field_list RBRACE SEMI",
/* 22 */ "field_list ::= field_def field_list",
/* 23 */ "field_list ::= field_def",
/* 24 */ "field_def ::= arg_type IDENT SEMI",
/* 25 */ "arg_list ::= argument COMMA arg_list",
/* 26 */ "arg_list ::= argument",
/* 27 */ "arg_list ::=",
/* 28 */ "argument ::= arg_type IDENT",
};
#endif /* NDEBUG */
#if YYSTACKDEPTH<=0
/*
** Try to increase the size of the parser stack.
*/
static void yyGrowStack(yyParser *p){
int newSize;
yyStackEntry *pNew;
newSize = p->yystksz*2 + 100;
pNew = realloc(p->yystack, newSize*sizeof(pNew[0]));
if( pNew ){
p->yystack = pNew;
p->yystksz = newSize;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sStack grows to %d entries!\n",
yyTracePrompt, p->yystksz);
}
#endif
}
}
#endif
/*
** This function allocates a new parser.
** The only argument is a pointer to a function which works like
** malloc.
**
** Inputs:
** A pointer to the function used to allocate memory.
**
** Outputs:
** A pointer to a parser. This pointer is used in subsequent calls
** to php_ffi_parser and php_ffi_parserFree.
*/
void *php_ffi_parserAlloc(void *(*mallocProc)(size_t)){
yyParser *pParser;
pParser = (yyParser*)(*mallocProc)( (size_t)sizeof(yyParser) );
if( pParser ){
pParser->yyidx = -1;
#ifdef YYTRACKMAXSTACKDEPTH
pParser->yyidxMax = 0;
#endif
#if YYSTACKDEPTH<=0
pParser->yystack = NULL;
pParser->yystksz = 0;
yyGrowStack(pParser);
#endif
}
return pParser;
}
/* The following function deletes the value associated with a
** symbol. The symbol can be either a terminal or nonterminal.
** "yymajor" is the symbol code, and "yypminor" is a pointer to
** the value.
*/
static void yy_destructor(
yyParser *yypParser, /* The parser */
YYCODETYPE yymajor, /* Type code for object to destroy */
YYMINORTYPE *yypminor /* The object to be destroyed */
){
php_ffi_parserARG_FETCH;
switch( yymajor ){
/* Here is inserted the actions which take place when a
** terminal or non-terminal is destroyed. This can happen
** when the symbol is popped from the stack during a
** reduce or during error processing or when a parser is
** being destroyed before it is finished parsing.
**
** Note: during a reduce, the only symbols destroyed are those
** which appear on the RHS of the rule, but which are not used
** inside the C code.
*/
default: break; /* If no destructor action specified: do nothing */
}
}
/*
** Pop the parser's stack once.
**
** If there is a destructor routine associated with the token which
** is popped from the stack, then call it.
**
** Return the major token number for the symbol popped.
*/
static int yy_pop_parser_stack(yyParser *pParser){
YYCODETYPE yymajor;
yyStackEntry *yytos = &pParser->yystack[pParser->yyidx];
if( pParser->yyidx<0 ) return 0;
#ifndef NDEBUG
if( yyTraceFILE && pParser->yyidx>=0 ){
fprintf(yyTraceFILE,"%sPopping %s\n",
yyTracePrompt,
yyTokenName[yytos->major]);
}
#endif
yymajor = yytos->major;
yy_destructor(pParser, yymajor, &yytos->minor);
pParser->yyidx--;
return yymajor;
}
/*
** Deallocate and destroy a parser. Destructors are all called for
** all stack elements before shutting the parser down.
**
** Inputs:
** <ul>
** <li> A pointer to the parser. This should be a pointer
** obtained from php_ffi_parserAlloc.
** <li> A pointer to a function used to reclaim memory obtained
** from malloc.
** </ul>
*/
void php_ffi_parserFree(
void *p, /* The parser to be deleted */
void (*freeProc)(void*) /* Function used to reclaim memory */
){
yyParser *pParser = (yyParser*)p;
if( pParser==0 ) return;
while( pParser->yyidx>=0 ) yy_pop_parser_stack(pParser);
#if YYSTACKDEPTH<=0
free(pParser->yystack);
#endif
(*freeProc)((void*)pParser);
}
/*
** Return the peak depth of the stack for a parser.
*/
#ifdef YYTRACKMAXSTACKDEPTH
int php_ffi_parserStackPeak(void *p){
yyParser *pParser = (yyParser*)p;
return pParser->yyidxMax;
}
#endif
/*
** Find the appropriate action for a parser given the terminal
** look-ahead token iLookAhead.
**
** If the look-ahead token is YYNOCODE, then check to see if the action is
** independent of the look-ahead. If it is, return the action, otherwise
** return YY_NO_ACTION.
*/
static int yy_find_shift_action(
yyParser *pParser, /* The parser */
YYCODETYPE iLookAhead /* The look-ahead token */
){
int i;
int stateno = pParser->yystack[pParser->yyidx].stateno;
if( stateno>YY_SHIFT_MAX || (i = yy_shift_ofst[stateno])==YY_SHIFT_USE_DFLT ){
return yy_default[stateno];
}
assert( iLookAhead!=YYNOCODE );
i += iLookAhead;
if( i<0 || i>=YY_SZ_ACTTAB || yy_lookahead[i]!=iLookAhead ){
if( iLookAhead>0 ){
#ifdef YYFALLBACK
YYCODETYPE iFallback; /* Fallback token */
if( iLookAhead<sizeof(yyFallback)/sizeof(yyFallback[0])
&& (iFallback = yyFallback[iLookAhead])!=0 ){
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE, "%sFALLBACK %s => %s\n",
yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[iFallback]);
}
#endif
return yy_find_shift_action(pParser, iFallback);
}
#endif
#ifdef YYWILDCARD
{
int j = i - iLookAhead + YYWILDCARD;
if( j>=0 && j<YY_SZ_ACTTAB && yy_lookahead[j]==YYWILDCARD ){
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE, "%sWILDCARD %s => %s\n",
yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[YYWILDCARD]);
}
#endif /* NDEBUG */
return yy_action[j];
}
}
#endif /* YYWILDCARD */
}
return yy_default[stateno];
}else{
return yy_action[i];
}
}
/*
** Find the appropriate action for a parser given the non-terminal
** look-ahead token iLookAhead.
**
** If the look-ahead token is YYNOCODE, then check to see if the action is
** independent of the look-ahead. If it is, return the action, otherwise
** return YY_NO_ACTION.
*/
static int yy_find_reduce_action(
int stateno, /* Current state number */
YYCODETYPE iLookAhead /* The look-ahead token */
){
int i;
#ifdef YYERRORSYMBOL
if( stateno>YY_REDUCE_MAX ){
return yy_default[stateno];
}
#else
assert( stateno<=YY_REDUCE_MAX );
#endif
i = yy_reduce_ofst[stateno];
assert( i!=YY_REDUCE_USE_DFLT );
assert( iLookAhead!=YYNOCODE );
i += iLookAhead;
#ifdef YYERRORSYMBOL
if( i<0 || i>=YY_SZ_ACTTAB || yy_lookahead[i]!=iLookAhead ){
return yy_default[stateno];
}
#else
assert( i>=0 && i<YY_SZ_ACTTAB );
assert( yy_lookahead[i]==iLookAhead );
#endif
return yy_action[i];
}
/*
** The following routine is called if the stack overflows.
*/
static void yyStackOverflow(yyParser *yypParser, YYMINORTYPE *yypMinor){
php_ffi_parserARG_FETCH;
yypParser->yyidx--;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sStack Overflow!\n",yyTracePrompt);
}
#endif
while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
/* Here code is inserted which will execute if the parser
** stack every overflows */
php_ffi_parserARG_STORE; /* Suppress warning about unused %extra_argument var */
}
/*
** Perform a shift action.
*/
static void yy_shift(
yyParser *yypParser, /* The parser to be shifted */
int yyNewState, /* The new state to shift in */
int yyMajor, /* The major token to shift in */
YYMINORTYPE *yypMinor /* Pointer to the minor token to shift in */
){
yyStackEntry *yytos;
yypParser->yyidx++;
#ifdef YYTRACKMAXSTACKDEPTH
if( yypParser->yyidx>yypParser->yyidxMax ){
yypParser->yyidxMax = yypParser->yyidx;
}
#endif
#if YYSTACKDEPTH>0
if( yypParser->yyidx>=YYSTACKDEPTH ){
yyStackOverflow(yypParser, yypMinor);
return;
}
#else
if( yypParser->yyidx>=yypParser->yystksz ){
yyGrowStack(yypParser);
if( yypParser->yyidx>=yypParser->yystksz ){
yyStackOverflow(yypParser, yypMinor);
return;
}
}
#endif
yytos = &yypParser->yystack[yypParser->yyidx];
yytos->stateno = (YYACTIONTYPE)yyNewState;
yytos->major = (YYCODETYPE)yyMajor;
yytos->minor = *yypMinor;
#ifndef NDEBUG
if( yyTraceFILE && yypParser->yyidx>0 ){
int i;
fprintf(yyTraceFILE,"%sShift %d\n",yyTracePrompt,yyNewState);
fprintf(yyTraceFILE,"%sStack:",yyTracePrompt);
for(i=1; i<=yypParser->yyidx; i++)
fprintf(yyTraceFILE," %s",yyTokenName[yypParser->yystack[i].major]);
fprintf(yyTraceFILE,"\n");
}
#endif
}
/* The following table contains information about every rule that
** is used during the reduce.
*/
static const struct {
YYCODETYPE lhs; /* Symbol on the left-hand side of the rule */
unsigned char nrhs; /* Number of right-hand side symbols in the rule */
} yyRuleInfo[] = {
{ 18, 1 },
{ 19, 2 },
{ 19, 1 },
{ 20, 1 },
{ 20, 1 },
{ 20, 1 },
{ 20, 1 },
{ 25, 0 },
{ 25, 1 },
{ 26, 1 },
{ 26, 2 },
{ 27, 2 },
{ 27, 3 },
{ 27, 1 },
{ 24, 7 },
{ 29, 3 },
{ 29, 1 },
{ 30, 3 },
{ 21, 4 },
{ 22, 6 },
{ 23, 4 },
{ 23, 6 },
{ 31, 2 },
{ 31, 1 },
{ 32, 3 },
{ 28, 3 },
{ 28, 1 },
{ 28, 0 },
{ 33, 2 },
};
static void yy_accept(yyParser*); /* Forward Declaration */
/*
** Perform a reduce action and the shift that must immediately
** follow the reduce.
*/
static void yy_reduce(
yyParser *yypParser, /* The parser */
int yyruleno /* Number of the rule by which to reduce */
){
int yygoto; /* The next state */
int yyact; /* The next action */
YYMINORTYPE yygotominor; /* The LHS of the rule reduced */
yyStackEntry *yymsp; /* The top of the parser's stack */
int yysize; /* Amount to pop the stack */
php_ffi_parserARG_FETCH;
yymsp = &yypParser->yystack[yypParser->yyidx];
#ifndef NDEBUG
if( yyTraceFILE && yyruleno>=0
&& yyruleno<(int)(sizeof(yyRuleName)/sizeof(yyRuleName[0])) ){
fprintf(yyTraceFILE, "%sReduce [%s].\n", yyTracePrompt,
yyRuleName[yyruleno]);
}
#endif /* NDEBUG */
/* Silence complaints from purify about yygotominor being uninitialized
** in some cases when it is copied into the stack after the following
** switch. yygotominor is uninitialized when a rule reduces that does
** not set the value of its left-hand side nonterminal. Leaving the
** value of the nonterminal uninitialized is utterly harmless as long
** as the value is never used. So really the only thing this code
** accomplishes is to quieten purify.
**
** 2007-01-16: The wireshark project (www.wireshark.org) reports that
** without this code, their parser segfaults. I'm not sure what there
** parser is doing to make this happen. This is the second bug report
** from wireshark this week. Clearly they are stressing Lemon in ways
** that it has not been previously stressed... (SQLite ticket #2172)
*/
/*memset(&yygotominor, 0, sizeof(yygotominor));*/
yygotominor = yyzerominor;
switch( yyruleno ){
/* Beginning here are the reduction cases. A typical example
** follows:
** case 0:
** #line <lineno> <grammarfile>
** { ... } // User supplied code
** #line <lineno> <thisfile>
** break;
*/
case 0: /* top_level ::= top_list */
case 1: /* top_list ::= top_item top_list */
case 2: /* top_list ::= top_item */
case 3: /* top_item ::= func_proto_with_attributes */
case 4: /* top_item ::= func_proto */
case 5: /* top_item ::= type_def */
case 6: /* top_item ::= callback_def */
case 15: /* func_attribute_list ::= func_attribute COMMA func_attribute_list */
case 16: /* func_attribute_list ::= func_attribute */
case 18: /* func_proto_with_attributes ::= LSQUARE func_attribute_list RSQUARE func_proto */
case 22: /* field_list ::= field_def field_list */
case 23: /* field_list ::= field_def */
case 25: /* arg_list ::= argument COMMA arg_list */
case 26: /* arg_list ::= argument */
case 27: /* arg_list ::= */
#line 93 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
}
#line 802 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 7: /* optional_asterisk_list ::= */
#line 102 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{ yygotominor.yy0.type.ptr_levels = 0; }
#line 807 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 8: /* optional_asterisk_list ::= asterisk_list */
#line 103 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{ yygotominor.yy0 = yymsp[0].minor.yy0; }
#line 812 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 9: /* asterisk_list ::= ASTERISK */
#line 105 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{ yygotominor.yy0.type.ptr_levels = 1; }
#line 817 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 10: /* asterisk_list ::= asterisk_list ASTERISK */
#line 106 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{ yygotominor.yy0 = yymsp[-1].minor.yy0; yygotominor.yy0.type.ptr_levels++; }
#line 822 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 11: /* arg_type ::= INTRINSIC optional_asterisk_list */
#line 108 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{ yygotominor.yy0 = yymsp[-1].minor.yy0; yygotominor.yy0.type.ptr_levels = yymsp[0].minor.yy0.type.ptr_levels; }
#line 827 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 12: /* arg_type ::= STRUCT IDENT optional_asterisk_list */
#line 109 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
yygotominor.yy0.type.intrinsic_type = FFI_TYPE_STRUCT;
yygotominor.yy0.type.struct_name = yymsp[-1].minor.yy0.ident;
yygotominor.yy0.type.ptr_levels = yymsp[0].minor.yy0.type.ptr_levels;
}
#line 836 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 13: /* arg_type ::= IDENT */
#line 115 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
CTX_TSRMLS_FETCH();
/* TODO: lookup ident (including callback types) */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unrecognized type name `%s'", get_ident_string(yymsp[0].minor.yy0.ident));
}
#line 845 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 14: /* callback_def ::= CALLBACK arg_type IDENT LPAREN arg_list RPAREN SEMI */
#line 123 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
CTX_TSRMLS_FETCH();
php_error_docref(NULL TSRMLS_CC, E_WARNING, "callback support not complete");
}
#line 853 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 17: /* func_attribute ::= IDENT EQUALS STRING */
#line 131 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
if (IDENT_EQUALS("lib", yymsp[-2].minor.yy0.ident)) {
ctx->libname = yymsp[0].minor.yy0.ident;
} else {
CTX_TSRMLS_FETCH();
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unsupported attribute %s", get_ident_string(yymsp[-2].minor.yy0.ident));
}
}
#line 865 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 19: /* func_proto ::= arg_type IDENT LPAREN arg_list RPAREN SEMI */
#line 142 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
yygotominor.yy0.func = php_ffi_parser_register_func(ctx, yymsp[-5].minor.yy0.type, yymsp[-4].minor.yy0.ident);
ctx->n_args = 0;
}
#line 873 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 20: /* type_def ::= TYPEDEF arg_type IDENT SEMI */
#line 147 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
CTX_TSRMLS_FETCH();
php_error_docref(NULL TSRMLS_CC, E_WARNING, "aliasing typedefs are not yet implemented");
}
#line 881 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 21: /* type_def ::= STRUCT IDENT LBRACE field_list RBRACE SEMI */
#line 152 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
php_ffi_parser_register_type(ctx, yymsp[-4].minor.yy0.ident);
ctx->n_args = 0;
}
#line 889 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 24: /* field_def ::= arg_type IDENT SEMI */
#line 160 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
php_ffi_parser_add_arg(ctx, yymsp[-2].minor.yy0.type, yymsp[-1].minor.yy0.ident);
}
#line 896 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
case 28: /* argument ::= arg_type IDENT */
#line 168 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
{
php_ffi_parser_add_arg(ctx, yymsp[-1].minor.yy0.type, yymsp[0].minor.yy0.ident);
}
#line 903 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
break;
};
yygoto = yyRuleInfo[yyruleno].lhs;
yysize = yyRuleInfo[yyruleno].nrhs;
yypParser->yyidx -= yysize;
yyact = yy_find_reduce_action(yymsp[-yysize].stateno,(YYCODETYPE)yygoto);
if( yyact < YYNSTATE ){
#ifdef NDEBUG
/* If we are not debugging and the reduce action popped at least
** one element off the stack, then we can push the new element back
** onto the stack here, and skip the stack overflow test in yy_shift().
** That gives a significant speed improvement. */
if( yysize ){
yypParser->yyidx++;
yymsp -= yysize-1;
yymsp->stateno = (YYACTIONTYPE)yyact;
yymsp->major = (YYCODETYPE)yygoto;
yymsp->minor = yygotominor;
}else
#endif
{
yy_shift(yypParser,yyact,yygoto,&yygotominor);
}
}else{
assert( yyact == YYNSTATE + YYNRULE + 1 );
yy_accept(yypParser);
}
}
/*
** The following code executes when the parse fails
*/
static void yy_parse_failed(
yyParser *yypParser /* The parser */
){
php_ffi_parserARG_FETCH;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sFail!\n",yyTracePrompt);
}
#endif
while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
/* Here code is inserted which will be executed whenever the
** parser fails */
#line 5 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
ctx->failed = 1; printf("FAIL: parser failed - %d errors\n", ctx->errors);
#line 950 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
php_ffi_parserARG_STORE; /* Suppress warning about unused %extra_argument variable */
}
/*
** The following code executes when a syntax error first occurs.
*/
static void yy_syntax_error(
yyParser *yypParser, /* The parser */
int yymajor, /* The major type of the error token */
YYMINORTYPE yyminor /* The minor type of the error token */
){
php_ffi_parserARG_FETCH;
#define TOKEN (yyminor.yy0)
#line 6 "/home/wez.net/src/pecl-ffi/ffi_parser.y"
ctx->errors++; printf("SYNTAX: entering error recovery near token %s\n", php_ffi_get_token_string(yymajor, TOKEN));
#line 966 "/home/wez.net/src/pecl-ffi/ffi_parser.c"
php_ffi_parserARG_STORE; /* Suppress warning about unused %extra_argument variable */
}
/*
** The following is executed when the parser accepts
*/
static void yy_accept(
yyParser *yypParser /* The parser */
){
php_ffi_parserARG_FETCH;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sAccept!\n",yyTracePrompt);
}
#endif
while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
/* Here code is inserted which will be executed whenever the
** parser accepts */
php_ffi_parserARG_STORE; /* Suppress warning about unused %extra_argument variable */
}
/* The main parser program.
** The first argument is a pointer to a structure obtained from
** "php_ffi_parserAlloc" which describes the current state of the parser.
** The second argument is the major token number. The third is
** the minor token. The fourth optional argument is whatever the
** user wants (and specified in the grammar) and is available for
** use by the action routines.
**
** Inputs:
** <ul>
** <li> A pointer to the parser (an opaque structure.)
** <li> The major token number.
** <li> The minor token number.
** <li> An option argument of a grammar-specified type.
** </ul>
**
** Outputs:
** None.
*/
void php_ffi_parser(
void *yyp, /* The parser */
int yymajor, /* The major token code number */
php_ffi_parserTOKENTYPE yyminor /* The value for the token */
php_ffi_parserARG_PDECL /* Optional %extra_argument parameter */
){
YYMINORTYPE yyminorunion;
int yyact; /* The parser action. */
int yyendofinput; /* True if we are at the end of input */
#ifdef YYERRORSYMBOL
int yyerrorhit = 0; /* True if yymajor has invoked an error */
#endif
yyParser *yypParser; /* The parser */
/* (re)initialize the parser, if necessary */
yypParser = (yyParser*)yyp;
if( yypParser->yyidx<0 ){
#if YYSTACKDEPTH<=0
if( yypParser->yystksz <=0 ){
/*memset(&yyminorunion, 0, sizeof(yyminorunion));*/
yyminorunion = yyzerominor;
yyStackOverflow(yypParser, &yyminorunion);
return;
}
#endif
yypParser->yyidx = 0;
yypParser->yyerrcnt = -1;
yypParser->yystack[0].stateno = 0;
yypParser->yystack[0].major = 0;
}
yyminorunion.yy0 = yyminor;
yyendofinput = (yymajor==0);
php_ffi_parserARG_STORE;
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sInput %s\n",yyTracePrompt,yyTokenName[yymajor]);
}
#endif
do{
yyact = yy_find_shift_action(yypParser,(YYCODETYPE)yymajor);
if( yyact<YYNSTATE ){
assert( !yyendofinput ); /* Impossible to shift the $ token */
yy_shift(yypParser,yyact,yymajor,&yyminorunion);
yypParser->yyerrcnt--;
yymajor = YYNOCODE;
}else if( yyact < YYNSTATE + YYNRULE ){
yy_reduce(yypParser,yyact-YYNSTATE);
}else{
assert( yyact == YY_ERROR_ACTION );
#ifdef YYERRORSYMBOL
int yymx;
#endif
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt);
}
#endif
#ifdef YYERRORSYMBOL
/* A syntax error has occurred.
** The response to an error depends upon whether or not the
** grammar defines an error token "ERROR".
**
** This is what we do if the grammar does define ERROR:
**
** * Call the %syntax_error function.
**
** * Begin popping the stack until we enter a state where
** it is legal to shift the error symbol, then shift
** the error symbol.
**
** * Set the error count to three.
**
** * Begin accepting and shifting new tokens. No new error
** processing will occur until three tokens have been
** shifted successfully.
**
*/
if( yypParser->yyerrcnt<0 ){
yy_syntax_error(yypParser,yymajor,yyminorunion);
}
yymx = yypParser->yystack[yypParser->yyidx].major;
if( yymx==YYERRORSYMBOL || yyerrorhit ){
#ifndef NDEBUG
if( yyTraceFILE ){
fprintf(yyTraceFILE,"%sDiscard input token %s\n",
yyTracePrompt,yyTokenName[yymajor]);
}
#endif
yy_destructor(yypParser, (YYCODETYPE)yymajor,&yyminorunion);
yymajor = YYNOCODE;
}else{
while(
yypParser->yyidx >= 0 &&
yymx != YYERRORSYMBOL &&
(yyact = yy_find_reduce_action(
yypParser->yystack[yypParser->yyidx].stateno,
YYERRORSYMBOL)) >= YYNSTATE
){
yy_pop_parser_stack(yypParser);
}
if( yypParser->yyidx < 0 || yymajor==0 ){
yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
yy_parse_failed(yypParser);
yymajor = YYNOCODE;
}else if( yymx!=YYERRORSYMBOL ){
YYMINORTYPE u2;
u2.YYERRSYMDT = 0;
yy_shift(yypParser,yyact,YYERRORSYMBOL,&u2);
}
}
yypParser->yyerrcnt = 3;
yyerrorhit = 1;
#else /* YYERRORSYMBOL is not defined */
/* This is what we do if the grammar does not define ERROR:
**
** * Report an error message, and throw away the input token.
**
** * If the input token is $, then fail the parse.
**
** As before, subsequent error messages are suppressed until
** three input tokens have been successfully shifted.
*/
if( yypParser->yyerrcnt<=0 ){
yy_syntax_error(yypParser,yymajor,yyminorunion);
}
yypParser->yyerrcnt = 3;
yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
if( yyendofinput ){
yy_parse_failed(yypParser);
}
yymajor = YYNOCODE;
#endif
}
}while( yymajor!=YYNOCODE && yypParser->yyidx>=0 );
return;
}
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