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* eval.c (rb_proc_new): Turn the BLOCK_LAMBDA flag on.

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* object.c (sym_to_proc), test/ruby/test_symbol.rb: Add back
  Symbol#to_proc, now that it passes the tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@16150 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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knu 2008-04-22 12:42:57 +00:00
parent 185e2676af
commit a2b186bee4
5 changed files with 49 additions and 0 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
Tue Apr 22 21:24:32 2008 Akinori MUSHA <knu@iDaemons.org>
* eval.c (rb_proc_new): Turn the BLOCK_LAMBDA flag on.
* object.c (sym_to_proc), test/ruby/test_symbol.rb: Add back
Symbol#to_proc, now that it passes the tests.
Tue Apr 22 19:35:03 2008 Akinori MUSHA <knu@iDaemons.org>
* enumerator.c (enumerator_initialize): Remove an undocumented

4
NEWS
View file

@ -232,6 +232,10 @@ with all sufficient information, see the ChangeLog file.
Return an enumerator if no block is given.
* Symbol#to_proc
New method.
* __method__
New global function that returns the name of the current method as

1
eval.c
View file

@ -9636,6 +9636,7 @@ rb_proc_new(func, val)
Data_Get_Struct(proc, struct BLOCK, data);
data->body->nd_state = YIELD_FUNC_AVALUE;
data->flags |= BLOCK_LAMBDA;
return proc;
}

30
object.c
View file

@ -1212,6 +1212,35 @@ sym_to_sym(sym)
}
static VALUE
sym_call(args, mid)
VALUE args, mid;
{
VALUE obj;
if (RARRAY(args)->len < 1) {
rb_raise(rb_eArgError, "no receiver given");
}
obj = rb_ary_shift(args);
return rb_apply(obj, (ID)mid, args);
}
/*
* call-seq:
* sym.to_proc
*
* Returns a _Proc_ object which respond to the given method by _sym_.
*
* (1..3).collect(&:to_s) #=> ["1", "2", "3"]
*/
static VALUE
sym_to_proc(VALUE sym)
{
return rb_proc_new(sym_call, (VALUE)SYM2ID(sym));
}
/***********************************************************************
*
* Document-class: Module
@ -2755,6 +2784,7 @@ Init_Object()
rb_define_method(rb_cSymbol, "to_s", sym_to_s, 0);
rb_define_method(rb_cSymbol, "id2name", sym_to_s, 0);
rb_define_method(rb_cSymbol, "to_sym", sym_to_sym, 0);
rb_define_method(rb_cSymbol, "to_proc", sym_to_proc, 0);
rb_define_method(rb_cSymbol, "===", rb_obj_equal, 1);
rb_define_method(rb_cModule, "freeze", rb_mod_freeze, 0);

7
test/ruby/test_symbol.rb
View file

@ -74,4 +74,11 @@ class TestSymbol < Test::Unit::TestCase
assert_inspect_evaled(':$0')
assert_inspect_evaled(':$1')
end
def test_to_proc
assert_equal %w(1 2 3), (1..3).map(&:to_s)
assert_nothing_raised(ArgumentError) { :object_id.to_proc.call([]) }
assert_nothing_raised(ArgumentError) { :object_id.to_proc.call([1]) }
assert_nothing_raised(ArgumentError) { :object_id.to_proc.call([1,2]) }
end
end