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parse.y: refine message for gvar w/o identitirs

* parse.y (parse_gvar): separate message for gvar without
  non-space characters from message for invalid identitirs.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50480 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-05-13 02:13:43 +00:00
parent 5b80ca1db8
commit 60730d91ce
4 changed files with 34 additions and 2 deletions

View file

@ -1,3 +1,8 @@
Wed May 13 11:13:40 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* parse.y (parse_gvar): separate message for gvar without
non-space characters from message for invalid identitirs.
Tue May 12 22:18:27 2015 Masaki Matsushita <glass.saga@gmail.com>
* enum.c (enum_to_a): fix incompatibility introduced in r50457.

View file

@ -7675,8 +7675,13 @@ parse_gvar(struct parser_params *parser, const enum lex_state_e last_state)
default:
if (!parser_is_identchar()) {
pushback(c);
compile_error(PARSER_ARG "`$%c' is not allowed as a global variable name", c);
if (c == -1 || ISSPACE(c)) {
compile_error(PARSER_ARG "`$' without identifiers is not allowed as a global variable name");
}
else {
pushback(c);
compile_error(PARSER_ARG "`$%c' is not allowed as a global variable name", c);
}
return 0;
}
case '0':

View file

@ -1219,14 +1219,17 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
def test_invalid_instance_variable_name
assert_equal("`@1' is not allowed as an instance variable name", compile_error('@1'))
assert_equal("`@%' is not allowed as an instance variable name", compile_error('@%'))
assert_equal("`@' without identifiers is not allowed as an instance variable name", compile_error('@'))
end
def test_invalid_class_variable_name
assert_equal("`@@1' is not allowed as a class variable name", compile_error('@@1'))
assert_equal("`@@%' is not allowed as a class variable name", compile_error('@@%'))
assert_equal("`@@' without identifiers is not allowed as a class variable name", compile_error('@@'))
end
def test_invalid_global_variable_name
assert_equal("`$%' is not allowed as a global variable name", compile_error('$%'))
assert_equal("`$' without identifiers is not allowed as a global variable name", compile_error('$'))
end
end if ripper_test

View file

@ -375,6 +375,25 @@ class TestParse < Test::Unit::TestCase
assert_nothing_raised { eval(':""') }
end
def assert_disallowed_variable(type, noname, *invalid)
assert_syntax_error(noname, "`#{noname}' without identifiers is not allowed as #{type} variable name")
invalid.each do |name|
assert_syntax_error(name, "`#{name}' is not allowed as #{type} variable name")
end
end
def test_disallowed_instance_variable
assert_disallowed_variable("an instance", *%w[@ @1 @.])
end
def test_disallowed_class_variable
assert_disallowed_variable("a class", *%w[@@ @@1 @@.])
end
def test_disallowed_gloal_variable
assert_disallowed_variable("a global", *%w[$ $%])
end
def test_arg2
o = Object.new