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-rw-r--r--NEWS5
-rw-r--r--parse.y1
-rw-r--r--test/lib/test/unit/assertions.rb10
-rw-r--r--test/ripper/test_parser_events.rb7
-rw-r--r--test/ruby/test_parse.rb6
-rw-r--r--test/ruby/test_rubyoptions.rb14
6 files changed, 17 insertions, 26 deletions
diff --git a/NEWS b/NEWS
index 5e53d529f0..dfeca52e56 100644
--- a/NEWS
+++ b/NEWS
@@ -31,6 +31,11 @@ sufficient information, see the ChangeLog file or Redmine
* Non-Symbol key in keyword arguments hash causes an exception.
+* "shadowing outer local variable" warning was removed. [Feature #12490]
+ You can now write the following without warning.
+
+ user = User.all.find {|user| cond(user) }
+
=== Core classes updates (outstanding ones only)
[Array]
diff --git a/parse.y b/parse.y
index ad67045d33..606daab7d8 100644
--- a/parse.y
+++ b/parse.y
@@ -9220,7 +9220,6 @@ shadowing_lvar_0(struct parser_params *p, ID name)
yyerror0("duplicated argument name");
}
else if (dvar_defined(p, name) || local_id(p, name)) {
- rb_warning1("shadowing outer local variable - %"PRIsWARN, rb_id2str(name));
vtable_add(p->lvtbl->vars, name);
if (p->lvtbl->used) {
vtable_add(p->lvtbl->used, (ID)p->ruby_sourceline | LVAR_USED);
diff --git a/test/lib/test/unit/assertions.rb b/test/lib/test/unit/assertions.rb
index 789e2d6c3d..dfa929a136 100644
--- a/test/lib/test/unit/assertions.rb
+++ b/test/lib/test/unit/assertions.rb
@@ -693,6 +693,16 @@ eom
assert_warning(*args) {$VERBOSE = false; yield}
end
+ def assert_no_warning(pat, msg = nil)
+ stderr = EnvUtil.verbose_warning {
+ EnvUtil.with_default_internal(pat.encoding) {
+ yield
+ }
+ }
+ msg = message(msg) {diff pat, stderr}
+ refute(pat === stderr, msg)
+ end
+
def assert_no_memory_leak(args, prepare, code, message=nil, limit: 2.0, rss: false, **opt)
# TODO: consider choosing some appropriate limit for MJIT and stop skipping this once it does not randomly fail
skip 'assert_no_memory_leak may consider MJIT memory usage as leak' if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
diff --git a/test/ripper/test_parser_events.rb b/test/ripper/test_parser_events.rb
index a420bfbf81..95ec661fcf 100644
--- a/test/ripper/test_parser_events.rb
+++ b/test/ripper/test_parser_events.rb
@@ -1487,13 +1487,6 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
assert_equal("`$' without identifiers is not allowed as a global variable name", compile_error('$'))
end
- def test_warning_shadowing
- fmt, *args = warning("x = 1; tap {|;x|}")
- assert_match(/shadowing outer local variable/, fmt)
- assert_equal("x", args[0])
- assert_match(/x/, fmt % args)
- end
-
def test_warning_ignored_magic_comment
fmt, *args = warning("1; #-*- frozen-string-literal: true -*-")
assert_match(/ignored after any tokens/, fmt)
diff --git a/test/ruby/test_parse.rb b/test/ruby/test_parse.rb
index 6160aa1452..c7aeeecb61 100644
--- a/test/ruby/test_parse.rb
+++ b/test/ruby/test_parse.rb
@@ -911,10 +911,8 @@ x = __ENCODING__
assert_equal(expected, actual, bug5614)
end
- def test_shadowing_variable
- assert_warning(/shadowing outer local variable/) {eval("a=1; tap {|a|}")}
- a = "\u{3042}"
- assert_warning(/#{a}/o) {eval("#{a}=1; tap {|#{a}|}")}
+ def test_no_shadowing_variable_warning
+ assert_no_warning(/shadowing outer local variable/) {eval("a=1; tap {|a|}")}
end
def test_unused_variable
diff --git a/test/ruby/test_rubyoptions.rb b/test/ruby/test_rubyoptions.rb
index 4a26d6bfc7..69521b1d23 100644
--- a/test/ruby/test_rubyoptions.rb
+++ b/test/ruby/test_rubyoptions.rb
@@ -782,20 +782,6 @@ class TestRubyOptions < Test::Unit::TestCase
assert_in_out_err(["-w", "-"], "eval('a=1')", [], [], feature7730)
end
- def test_shadowing_variable
- bug4130 = '[ruby-dev:42718]'
- assert_in_out_err(["-we", "def foo\n"" a=1\n"" 1.times do |a| end\n"" a\n""end"],
- "", [], ["-e:3: warning: shadowing outer local variable - a"], bug4130)
- assert_in_out_err(["-we", "def foo\n"" a=1\n"" 1.times do |a| end\n""end"],
- "", [],
- ["-e:3: warning: shadowing outer local variable - a",
- "-e:2: warning: assigned but unused variable - a",
- ], bug4130)
- feature6693 = '[ruby-core:46160]'
- assert_in_out_err(["-we", "def foo\n"" _a=1\n"" 1.times do |_a| end\n""end"],
- "", [], [], feature6693)
- end
-
def test_script_from_stdin
begin
require 'pty'