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[HB] Use inline function for SANITIZE_MEM()

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This commit is contained in:
Behdad Esfahbod 2009-08-14 16:25:33 -04:00
parent 95528131b5
commit 41895506cb
1 changed files with 20 additions and 13 deletions
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33
src/hb-open-type-private.hh
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@ -131,6 +131,13 @@ struct Null <Type> \
#define SANITIZE_DEBUG() HB_STMT_START {} HB_STMT_END
#endif
#define SANITIZE_ARG_DEF \
hb_sanitize_context_t *context SANITIZE_DEBUG_ARG_DEF
#define SANITIZE_ARG \
context SANITIZE_DEBUG_ARG
#define SANITIZE_ARG_INIT \
&context SANITIZE_DEBUG_ARG_INIT
typedef struct _hb_sanitize_context_t hb_sanitize_context_t;
struct _hb_sanitize_context_t
{
@ -168,7 +175,17 @@ _hb_sanitize_fini (hb_sanitize_context_t *context,
}
static HB_GNUC_UNUSED inline bool
_hb_sanitize_edit (hb_sanitize_context_t *context,
_hb_sanitize_check (SANITIZE_ARG_DEF,
const char *base,
unsigned int len)
{
return context->start <= base &&
base <= context->end &&
(unsigned int) (context->end - base) >= len;
}
static HB_GNUC_UNUSED inline bool
_hb_sanitize_edit (SANITIZE_ARG_DEF,
const char *base HB_GNUC_UNUSED,
unsigned int len HB_GNUC_UNUSED)
{
@ -186,13 +203,6 @@ _hb_sanitize_edit (hb_sanitize_context_t *context,
return perm;
}
#define SANITIZE_ARG_DEF \
hb_sanitize_context_t *context SANITIZE_DEBUG_ARG_DEF
#define SANITIZE_ARG \
context SANITIZE_DEBUG_ARG
#define SANITIZE_ARG_INIT \
&context SANITIZE_DEBUG_ARG_INIT
#define SANITIZE(X) HB_LIKELY ((X).sanitize (SANITIZE_ARG))
#define SANITIZE2(X,Y) (SANITIZE (X) && SANITIZE (Y))
@ -208,14 +218,11 @@ _hb_sanitize_edit (hb_sanitize_context_t *context,
#define SANITIZE_GET_SIZE() SANITIZE_SELF() && SANITIZE_MEM (this, this->get_size ())
/* TODO Optimize this if L is fixed (gcc magic) */
#define SANITIZE_MEM(B,L) \
HB_LIKELY (context->start <= CONST_CHARP(B) && \
CONST_CHARP(B) <= context->end && \
(unsigned int) (context->end - CONST_CHARP(B)) >= (unsigned int) (L))
#define SANITIZE_MEM(B,L) HB_LIKELY (_hb_sanitize_check (SANITIZE_ARG, CONST_CHARP(B), (L)))
#define NEUTER(Var, Val) \
(SANITIZE_OBJ (Var) && \
_hb_sanitize_edit (context, CONST_CHARP(&(Var)), sizeof (Var)) && \
_hb_sanitize_edit (SANITIZE_ARG, CONST_CHARP(&(Var)), sizeof (Var)) && \
((Var) = (Val), true))