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[HB] Fix Extension sanitize()

This commit is contained in:
Behdad Esfahbod 2009-08-04 14:27:56 -04:00
parent f2be750981
commit 18939487d0
3 changed files with 5 additions and 3 deletions
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3
src/hb-ot-layout-gpos-private.hh
View File

@ -1525,7 +1525,8 @@ inline bool ExtensionPos::apply (APPLY_ARG_DEF) const
inline bool ExtensionPos::sanitize (SANITIZE_ARG_DEF)
{
return Extension::sanitize (SANITIZE_ARG) &&
DECONST_CAST (PosLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG);
(&(Extension::get_subtable ()) == &Null(LookupSubTable) ||
DECONST_CAST (PosLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG));
}
static inline bool position_lookup (APPLY_ARG_DEF, unsigned int lookup_index)

3
src/hb-ot-layout-gsub-private.hh
View File

@ -862,7 +862,8 @@ inline bool ExtensionSubst::apply (APPLY_ARG_DEF) const
inline bool ExtensionSubst::sanitize (SANITIZE_ARG_DEF)
{
return Extension::sanitize (SANITIZE_ARG) &&
DECONST_CAST (SubstLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG);
(&(Extension::get_subtable ()) == &Null(LookupSubTable) ||
DECONST_CAST (SubstLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG));
}
static inline bool substitute_lookup (APPLY_ARG_DEF, unsigned int lookup_index)

2
src/hb-ot-layout-gsubgpos-private.hh
View File

@ -769,7 +769,7 @@ struct ExtensionFormat1
{
friend struct Extension;
private:
protected:
inline unsigned int get_type (void) const { return extensionLookupType; }
inline unsigned int get_offset (void) const { return (extensionOffset[0] << 16) + extensionOffset[1]; }
inline const LookupSubTable& get_subtable (void) const