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block_given? always returns false when it calls in block #2703

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block_given? always returns false when it calls in block #2703

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11 changes: 3 additions & 8 deletions src/kernel.c
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Original file line number Diff line number Diff line change
Expand Up @@ -185,15 +185,10 @@ mrb_f_block_given_p_m(mrb_state *mrb, mrb_value self)
given_p = FALSE;
}
else {
/* block_given? called within block; check upper scope */
if (ci->proc->env && ci->proc->env->stack) {
mrb_value *sp = ci->proc->env->stack;

/* top-level does not have block slot (alway false) */
if (sp == mrb->c->stbase)
return mrb_false_value();
ci = mrb->c->cibase + ci->proc->env->cioff;
bp = ci[1].stackent + 1;
/* If block_given? is called within block, it always returns false. */
if (ci->proc->env && ci->proc->env->stack) {
return mrb_false_value();
}
if (ci->argc > 0) {
bp += ci->argc;
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