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AK: Make the JsonParser use the new double parser for numbers

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Because we still support u64 and i64 (on top of i32 and u32) we do still
have to parse the number ourself first. Then if we determine that the
number is a floating point or is outside of the range of i64 and u64 we
fallback and parse it as a double.

Before JsonParser had ifdefs guarding the double computation, but it
just build when we error on ifdef KERNEL so JsonParser is no longer
usable in the Kernel. This can be remedied fairly easily but since
it is not needed we #error on that for now.
This commit is contained in:
davidot 2022-10-12 02:22:45 +02:00 • committed by Linus Groh
parent 35e52f7bfd
commit c9aa664eb0
2 changed files with 200 additions and 112 deletions
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124
Tests/AK/TestJSON.cpp
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@ -143,3 +143,127 @@ TEST_CASE(json_parse_number_with_exponent)
auto value_with_fraction = JsonValue::from_string("10.5e5"sv);
EXPECT_EQ(value_with_fraction.value().as_double(), 1050000.0);
}
TEST_CASE(json_parse_special_numbers)
{
#define EXPECT_TO_MATCH_NUMBER_BIT_WISE(string_input, double_input) \
do { \
auto value_or_error = JsonValue::from_string(string_input##sv); \
VERIFY(!value_or_error.is_error()); \
if (value_or_error.is_error()) \
dbgln("got {}", value_or_error.error()); \
EXPECT(value_or_error.value().is_number()); \
EXPECT_EQ(bit_cast<u64>(value_or_error.value().to_double(4321.0)), bit_cast<u64>(static_cast<double>(double_input))); \
} while (false)
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0", -0.);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0.0", -0.0);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0.00", -0.00);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0e0", -0e0);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0e1", -0e1);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0e2", -0e2);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0e1000", -0e1000);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-0e-1000", -0e-1000);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0", 0.);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0.0", 0.0);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0.00", 0.00);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0e0", 0e0);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0e1", 0e1);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0e2", 0e2);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0e1000", 0e1000);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("0e-1000", 0e-1000);
// These technically can be non zero, but not in doubles
EXPECT_TO_MATCH_NUMBER_BIT_WISE("-1e-2000", -0.);
EXPECT_TO_MATCH_NUMBER_BIT_WISE("1e-2000", 0.);
#undef EXPECT_TO_MATCH_NUMBER_BIT_WISE
}
TEST_CASE(json_parse_fails_on_invalid_number)
{
#define EXPECT_JSON_PARSE_TO_FAIL(value) \
EXPECT(JsonValue::from_string(value##sv).is_error());
EXPECT_JSON_PARSE_TO_FAIL("-");
EXPECT_JSON_PARSE_TO_FAIL("00");
EXPECT_JSON_PARSE_TO_FAIL("01");
EXPECT_JSON_PARSE_TO_FAIL("-01");
EXPECT_JSON_PARSE_TO_FAIL(".1");
EXPECT_JSON_PARSE_TO_FAIL("-.1");
EXPECT_JSON_PARSE_TO_FAIL("-,1");
EXPECT_JSON_PARSE_TO_FAIL(".1e1");
EXPECT_JSON_PARSE_TO_FAIL(".1e-1");
EXPECT_JSON_PARSE_TO_FAIL("-.1e1");
EXPECT_JSON_PARSE_TO_FAIL("-.1e-1");
EXPECT_JSON_PARSE_TO_FAIL("1.e1");
EXPECT_JSON_PARSE_TO_FAIL("1.e-1");
EXPECT_JSON_PARSE_TO_FAIL("-1.e1");
EXPECT_JSON_PARSE_TO_FAIL("-1.e-1");
EXPECT_JSON_PARSE_TO_FAIL("1e");
EXPECT_JSON_PARSE_TO_FAIL("1e+");
EXPECT_JSON_PARSE_TO_FAIL("1e-");
EXPECT_JSON_PARSE_TO_FAIL("1e-f");
EXPECT_JSON_PARSE_TO_FAIL("1.e");
EXPECT_JSON_PARSE_TO_FAIL("1.e+");
EXPECT_JSON_PARSE_TO_FAIL("1.e-");
EXPECT_JSON_PARSE_TO_FAIL("1.e-f");
EXPECT_JSON_PARSE_TO_FAIL("1p2");
EXPECT_JSON_PARSE_TO_FAIL("1.p2");
EXPECT_JSON_PARSE_TO_FAIL("0x1.0p2");
EXPECT_JSON_PARSE_TO_FAIL("0x1");
EXPECT_JSON_PARSE_TO_FAIL("0x7");
EXPECT_JSON_PARSE_TO_FAIL("0xA");
EXPECT_JSON_PARSE_TO_FAIL("0x");
EXPECT_JSON_PARSE_TO_FAIL("-0x");
EXPECT_JSON_PARSE_TO_FAIL("0x");
EXPECT_JSON_PARSE_TO_FAIL("1x");
EXPECT_JSON_PARSE_TO_FAIL("100x");
EXPECT_JSON_PARSE_TO_FAIL("1000000000000000000000x");
EXPECT_JSON_PARSE_TO_FAIL("0e2x");
EXPECT_JSON_PARSE_TO_FAIL("0.1e2x");
EXPECT_JSON_PARSE_TO_FAIL("0.1x");
EXPECT_JSON_PARSE_TO_FAIL("1e2x");
EXPECT_JSON_PARSE_TO_FAIL("1.2x");
EXPECT_JSON_PARSE_TO_FAIL("1.2e2x");
EXPECT_JSON_PARSE_TO_FAIL(".0");
EXPECT_JSON_PARSE_TO_FAIL(".e1");
EXPECT_JSON_PARSE_TO_FAIL("-.0");
EXPECT_JSON_PARSE_TO_FAIL("-.e1");
EXPECT_JSON_PARSE_TO_FAIL("+0");
EXPECT_JSON_PARSE_TO_FAIL("+0.0");
EXPECT_JSON_PARSE_TO_FAIL("+0.00");
EXPECT_JSON_PARSE_TO_FAIL("+0e0");
EXPECT_JSON_PARSE_TO_FAIL("+0e1");
EXPECT_JSON_PARSE_TO_FAIL("+0e2");
EXPECT_JSON_PARSE_TO_FAIL("+0e1000");
EXPECT_JSON_PARSE_TO_FAIL("+0e-1000");
EXPECT_JSON_PARSE_TO_FAIL("+10");
EXPECT_JSON_PARSE_TO_FAIL("+10e1");
EXPECT_JSON_PARSE_TO_FAIL("+10.3");
EXPECT_JSON_PARSE_TO_FAIL("+10.3e1");
EXPECT_JSON_PARSE_TO_FAIL("0x1");
EXPECT_JSON_PARSE_TO_FAIL("0x2");
EXPECT_JSON_PARSE_TO_FAIL("0xA");
EXPECT_JSON_PARSE_TO_FAIL("0xB");
EXPECT_JSON_PARSE_TO_FAIL("0xF");
EXPECT_JSON_PARSE_TO_FAIL("0Xf");
EXPECT_JSON_PARSE_TO_FAIL("0X3");
EXPECT_JSON_PARSE_TO_FAIL("10ee1");
EXPECT_JSON_PARSE_TO_FAIL("1e1e1");
// These could be valid within an array but not as the top level value
EXPECT_JSON_PARSE_TO_FAIL("0,0");
EXPECT_JSON_PARSE_TO_FAIL(",1");
EXPECT_JSON_PARSE_TO_FAIL("10e1,");
EXPECT_JSON_PARSE_TO_FAIL("10e,1");
EXPECT_JSON_PARSE_TO_FAIL("10,e1");
EXPECT_JSON_PARSE_TO_FAIL("1,0e1");
EXPECT_JSON_PARSE_TO_FAIL(",10e1");
#undef EXPECT_JSON_PARSE_TO_FAIL
}