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-rw-r--r--include/mruby/proc.h2
-rw-r--r--test/t/kernel.rb7
2 files changed, 8 insertions, 1 deletions
diff --git a/include/mruby/proc.h b/include/mruby/proc.h
index ef5357d5d..12013c3ae 100644
--- a/include/mruby/proc.h
+++ b/include/mruby/proc.h
@@ -34,7 +34,7 @@ struct REnv {
#define MRB_ENV_HEAP_P(e) ((e)->flags & MRB_ENV_HEAPED)
#define MRB_ENV_ONSTACK_P(e) (((e)->flags & MRB_ENV_CLOSED) == 0)
#define MRB_ENV_BIDX(e) (((e)->flags >> 8) & 0xff)
-#define MRB_ENV_SET_BIDX(e,idx) ((e)->flags = (((e)->flags & ~(0xff<<8))|((unsigned int)(idx) & 0xff)<<10))
+#define MRB_ENV_SET_BIDX(e,idx) ((e)->flags = (((e)->flags & ~(0xff<<8))|((unsigned int)(idx) & 0xff)<<8))
void mrb_env_unshare(mrb_state*, struct REnv*);
diff --git a/test/t/kernel.rb b/test/t/kernel.rb
index b7291a000..606150147 100644
--- a/test/t/kernel.rb
+++ b/test/t/kernel.rb
@@ -116,6 +116,13 @@ assert('Kernel#block_given?', '15.3.1.3.6') do
"block"
end
end
+
+ def bg_try_in_block
+ -> { block_given? }[]
+ end
+
+ assert_false bg_try_in_block
+ assert_true bg_try_in_block{}
end
assert('Kernel#class', '15.3.1.3.7') do