Issue #9455 has been updated by Yui NARUSE.

Backport changed from 1.9.3: DONTNEED, 2.0.0: REQUIRED, 2.1: REQUIRED to 1.9.3: DONTNEED, 2.0.0: REQUIRED, 2.1: DONE

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Bug #9455: Blocks do not round-trip properly through ISeq dump/load
https://bugs.ruby-lang.org/issues/9455#change-45321

* Author: Charlie Somerville
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: trunk
* Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED, 2.1: DONE
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Blocks passed to methods do not round-trip properly when dumped with RubyVM::InstructionSequence#to_a and then loaded again with rb_iseq_load.

This is because iseq_data_to_ary in iseq.c stores serialized blocks under the :blockptr key (https://github.com/ruby/ruby/blob/trunk/iseq.c#L1813), but expects them to be stored in the :block key when loading them back up (https://github.com/ruby/ruby/blob/trunk/compile.c#L5811).

This affects trunk, 2.1.0 and 2.0.0.



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