diff options
Diffstat (limited to 'gcc/vec.h')
| -rw-r--r-- | gcc/vec.h | 77 |
1 files changed, 77 insertions, 0 deletions
@@ -407,6 +407,83 @@ struct GTY((user)) vec { }; +/* Generic vec<> debug helpers. + + These need to be instantiated for each vec<TYPE> used throughout + the compiler like this: + + DEFINE_DEBUG_VEC (TYPE) + + The reason we have a debug_helper() is because GDB can't + disambiguate a plain call to debug(some_vec), and it must be called + like debug<TYPE>(some_vec). */ + +template<typename T> +void +debug_helper (vec<T> &ref) +{ + unsigned i; + for (i = 0; i < ref.length (); ++i) + { + fprintf (stderr, "[%d] = ", i); + debug_slim (ref[i]); + fputc ('\n', stderr); + } +} + +/* We need a separate va_gc variant here because default template + argument for functions cannot be used in c++-98. Once this + restriction is removed, those variant should be folded with the + above debug_helper. */ + +template<typename T> +void +debug_helper (vec<T, va_gc> &ref) +{ + unsigned i; + for (i = 0; i < ref.length (); ++i) + { + fprintf (stderr, "[%d] = ", i); + debug_slim (ref[i]); + fputc ('\n', stderr); + } +} + +/* Macro to define debug(vec<T>) and debug(vec<T, va_gc>) helper + functions for a type T. */ + +#define DEFINE_DEBUG_VEC(T) \ + template static void debug_helper (vec<T> &); \ + template static void debug_helper (vec<T, va_gc> &); \ + /* Define the vec<T> debug functions. */ \ + DEBUG_FUNCTION void \ + debug (vec<T> &ref) \ + { \ + debug_helper <T> (ref); \ + } \ + DEBUG_FUNCTION void \ + debug (vec<T> *ptr) \ + { \ + if (ptr) \ + debug (*ptr); \ + else \ + fprintf (stderr, "<nil>\n"); \ + } \ + /* Define the vec<T, va_gc> debug functions. */ \ + DEBUG_FUNCTION void \ + debug (vec<T, va_gc> &ref) \ + { \ + debug_helper <T> (ref); \ + } \ + DEBUG_FUNCTION void \ + debug (vec<T, va_gc> *ptr) \ + { \ + if (ptr) \ + debug (*ptr); \ + else \ + fprintf (stderr, "<nil>\n"); \ + } + /* Default-construct N elements in DST. */ template <typename T> |