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Implement a freeze: parser option

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If set to true all parsed objects will be
immediately frozen, and strings will be
deduplicated if the Ruby implementation
allows it.
This commit is contained in:
Jean Boussier 2020-09-09 15:24:22 +02:00 • committed by Hiroshi SHIBATA
parent f6680c9ad1
commit 520e0916af
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6 changed files with 147 additions and 45 deletions
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21
test/json/json_parser_test.rb
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@ -218,6 +218,17 @@ class JSONParserTest < Test::Unit::TestCase
end
end
def test_freeze
assert_predicate parse('{}', :freeze => true), :frozen?
assert_predicate parse('[]', :freeze => true), :frozen?
assert_predicate parse('"foo"', :freeze => true), :frozen?
if string_deduplication_available?
assert_same -'foo', parse('"foo"', :freeze => true)
assert_same -'foo', parse('{"foo": 1}', :freeze => true).keys.first
end
end
def test_parse_comments
json = <<EOT
{
@ -468,6 +479,16 @@ EOT
private
def string_deduplication_available?
r1 = rand.to_s
r2 = r1.dup
begin
(-r1).equal?(-r2)
rescue NoMethodError
false # No String#-@
end
end
def assert_equal_float(expected, actual, delta = 1e-2)
Array === expected and expected = expected.first
Array === actual and actual = actual.first