rb_hash_tbl      1355 compile.c      				if (!st_lookup(rb_hash_tbl(map), obj, 0)) {
rb_hash_tbl       256 hash.c             rb_hash_tbl(hash);
rb_hash_tbl       385 include/ruby/intern.h struct st_table *rb_hash_tbl(VALUE);
rb_hash_tbl       652 include/ruby/ruby.h #define RHASH_TBL(h) rb_hash_tbl(h)