зеркало из https://github.com/github/ruby.git
Refined the warning message for numbered-parameter like variables
[Bug #16438]
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a8bddb3a18
Коммит
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2
NEWS
2
NEWS
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@ -127,7 +127,7 @@ sufficient information, see the ChangeLog file or Redmine
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You can still define a local variable named _1 and so on, and that is honored when present, but renders warning.
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_1 = 0 #=> warning: `_1' is used as numbered parameter
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_1 = 0 #=> warning: `_1' is reserved for numbered parameter; consider another name
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[1].each { p _1 } # prints 0 instead of 1
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==== proc/lambda without block is deprecated
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2
parse.y
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parse.y
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@ -11836,7 +11836,7 @@ static void
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numparam_name(struct parser_params *p, ID id)
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{
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if (!NUMPARAM_ID_P(id)) return;
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rb_warn1("`_%d' is reserved as numbered parameter",
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rb_warn1("`_%d' is reserved for numbered parameter; consider another name",
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WARN_I(NUMPARAM_ID_TO_IDX(id)));
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}
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@ -1437,7 +1437,7 @@ eom
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assert_syntax_error('-> {_1; -> {_2}}', /numbered parameter is already used/)
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assert_syntax_error('-> {-> {_1}; _2}', /numbered parameter is already used/)
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assert_syntax_error('proc {_1; _1 = nil}', /Can't assign to numbered parameter _1/)
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mesg = proc {|n| /`_#{n}' is reserved as numbered parameter/}
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mesg = proc {|n| /`_#{n}' is reserved for numbered parameter/}
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assert_warn(mesg[1]) {eval('proc {_1 = nil}')}
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assert_warn(mesg[2]) {eval('_2=1')}
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assert_warn(mesg[3]) {eval('proc {|_3|}')}
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