diff options
| -rw-r--r-- | src/kernel.c | 19 | ||||
| -rw-r--r-- | test/t/kernel.rb | 9 |
2 files changed, 20 insertions, 8 deletions
diff --git a/src/kernel.c b/src/kernel.c index 04e427327..f233fdf6d 100644 --- a/src/kernel.c +++ b/src/kernel.c @@ -269,12 +269,6 @@ mrb_f_send(mrb_state *mrb, mrb_value self) return mrb_funcall_with_block(mrb,self, mrb_string_value_ptr(mrb, name), argc, argv, block); } -static mrb_value -mrb_f_block_given_p(void) -{ - return mrb_false_value(); /* dummy */ -} - /* 15.3.1.2.2 */ /* 15.3.1.2.5 */ /* 15.3.1.3.6 */ @@ -302,7 +296,18 @@ mrb_f_block_given_p(void) static mrb_value mrb_f_block_given_p_m(mrb_state *mrb, mrb_value self) { - return mrb_f_block_given_p(); + mrb_callinfo *ci = mrb->ci; + mrb_value *bp, *p; + + p = mrb->stbase + ci->stackidx; + bp = mrb->stbase + ci->stackidx + 1; + ci--; + if (ci <= mrb->cibase) return mrb_false_value(); + if (ci->argc > 0) { + bp += ci->argc; + } + if (mrb_nil_p(*bp)) return mrb_false_value(); + return mrb_true_value(); } /* 15.3.1.3.7 */ diff --git a/test/t/kernel.rb b/test/t/kernel.rb index 847f1baeb..5e25d6516 100644 --- a/test/t/kernel.rb +++ b/test/t/kernel.rb @@ -6,7 +6,14 @@ assert('Kernel', '15.3.1') do end assert('Kernel.block_given?', '15.3.1.2.2') do - Kernel.block_given? == false + def bg_try(&b) + if block_given? + yield + else + "no block" + end + end + (Kernel.block_given? == false) && (bg_try == "no block") && ((bg_try { "block" }) == "block") && ((bg_try do "block" end) == "block") end assert('Kernel.global_variables', '15.3.1.2.4') do |