joyent/node

/*
** C declaration parser.
** Copyright (C) 2005-2013 Mike Pall. See Copyright Notice in luajit.h
*/

#ifndef _LJ_CPARSE_H
#define _LJ_CPARSE_H

#include "lj_obj.h"
#include "lj_ctype.h"

#if LJ_HASFFI

/* C parser limits. */
#define CPARSE_MAX_BUF        32768    /* Max. token buffer size. */
#define CPARSE_MAX_DECLSTACK    100    /* Max. declaration stack depth. */
#define CPARSE_MAX_DECLDEPTH    20    /* Max. recursive declaration depth. */
#define CPARSE_MAX_PACKSTACK    7    /* Max. pack pragma stack depth. */

/* Flags for C parser mode. */
#define CPARSE_MODE_MULTI    1    /* Process multiple declarations. */
#define CPARSE_MODE_ABSTRACT    2    /* Accept abstract declarators. */
#define CPARSE_MODE_DIRECT    4    /* Accept direct declarators. */
#define CPARSE_MODE_FIELD    8    /* Accept field width in bits, too. */
#define CPARSE_MODE_NOIMPLICIT    16    /* Reject implicit declarations. */
#define CPARSE_MODE_SKIP    32    /* Skip definitions, ignore errors. */

typedef int CPChar;    /* C parser character. Unsigned ext. from char. */
typedef int CPToken;    /* C parser token. */

/* C parser internal value representation. */
typedef struct CPValue {
  union {
    int32_t i32;    /* Value for CTID_INT32. */
    uint32_t u32;    /* Value for CTID_UINT32. */
  };
  CTypeID id;        /* C Type ID of the value. */
} CPValue;

/* C parser state. */
typedef struct CPState {
  CPChar c;        /* Current character. */
  CPToken tok;        /* Current token. */
  CPValue val;        /* Token value. */
  GCstr *str;        /* Interned string of identifier/keyword. */
  CType *ct;        /* C type table entry. */
  const char *p;    /* Current position in input buffer. */
  SBuf sb;        /* String buffer for tokens. */
  lua_State *L;        /* Lua state. */
  CTState *cts;        /* C type state. */
  TValue *param;    /* C type parameters. */
  const char *srcname;    /* Current source name. */
  BCLine linenumber;    /* Input line counter. */
  int depth;        /* Recursive declaration depth. */
  uint32_t tmask;    /* Type mask for next identifier. */
  uint32_t mode;    /* C parser mode. */
  uint8_t packstack[CPARSE_MAX_PACKSTACK];  /* Stack for pack pragmas. */
  uint8_t curpack;    /* Current position in pack pragma stack. */
} CPState;

LJ_FUNC int lj_cparse(CPState *cp);

#endif

#endif