[ruby-dev:50836] [Ruby master Bug#10436] ruby -c and ripper inconsistency: m(&nil) {}

Issue #10436 has been updated by jeremyevans0 (Jeremy Evans).

File ripper-block_dup_check-10436.patch added

This bug still occurs in the master branch.  Attached is a patch that fixes the problem by overriding `Ripper::SexpBuilder#on_method_add_block`.  This isn't a very clean way to fix it, but I was not able to figure out a way to fix it by modifying `parse.y`.

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Bug #10436: ruby -c and ripper inconsistency: m(&nil) {}
https://bugs.ruby-lang.org/issues/10436#change-80884

* Author: akr (Akira Tanaka)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.2.0dev (2014-10-27 trunk 48168) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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m(&nil) {} というまちがったコードは
ruby -c でちゃんとエラーになるのに、
Ripper.sexp ではならないようです。

```
% cat z.rb 
m(&nil) {}
% ruby -c z.rb 
z.rb:1: both block arg and actual block given
% ruby -rripper -e 'p Ripper.sexp(STDIN.read)' < z.rb
[:program, [[:method_add_block, [:method_add_arg, [:fcall, [:@ident, "m", [1, 0]]], [:arg_paren, [:args_add_block, [], [:var_ref, [:@kw, "nil", [1, 3]]]]]], [:brace_block, nil, [[:void_stmt]]]]]]
% ruby -v
ruby 2.2.0dev (2014-10-27 trunk 48168) [x86_64-linux]
```


---Files--------------------------------
ripper-block_dup_check-10436.patch (2.2 KB)


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