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Everywhere: Explicitly specify the size in StringView constructors

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This commit moves the length calculations out to be directly on the
StringView users. This is an important step towards the goal of removing
StringView(char const*), as it moves the responsibility of calculating
the size of the string to the user of the StringView (which will prevent
naive uses causing OOB access).
This commit is contained in:
sin-ack 2022-07-11 19:53:29 +00:00 • committed by Andreas Kling
parent e3da0adfe6
commit c70f45ff44
75 changed files with 264 additions and 203 deletions
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40
Tests/AK/TestUtf8.cpp
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@ -51,33 +51,33 @@ TEST_CASE(decode_utf8)
TEST_CASE(validate_invalid_ut8)
{
size_t valid_bytes;
char invalid_utf8_1[] = { 42, 35, (char)182, 9, 0 };
Utf8View utf8_1 { StringView { invalid_utf8_1 } };
char invalid_utf8_1[] = { 42, 35, (char)182, 9 };
Utf8View utf8_1 { StringView { invalid_utf8_1, 4 } };
EXPECT(!utf8_1.validate(valid_bytes));
EXPECT(valid_bytes == 2);
char invalid_utf8_2[] = { 42, 35, (char)208, (char)208, 0 };
Utf8View utf8_2 { StringView { invalid_utf8_2 } };
char invalid_utf8_2[] = { 42, 35, (char)208, (char)208 };
Utf8View utf8_2 { StringView { invalid_utf8_2, 4 } };
EXPECT(!utf8_2.validate(valid_bytes));
EXPECT(valid_bytes == 2);
char invalid_utf8_3[] = { (char)208, 0 };
Utf8View utf8_3 { StringView { invalid_utf8_3 } };
char invalid_utf8_3[] = { (char)208 };
Utf8View utf8_3 { StringView { invalid_utf8_3, 1 } };
EXPECT(!utf8_3.validate(valid_bytes));
EXPECT(valid_bytes == 0);
char invalid_utf8_4[] = { (char)208, 35, 0 };
Utf8View utf8_4 { StringView { invalid_utf8_4 } };
char invalid_utf8_4[] = { (char)208, 35 };
Utf8View utf8_4 { StringView { invalid_utf8_4, 2 } };
EXPECT(!utf8_4.validate(valid_bytes));
EXPECT(valid_bytes == 0);
char invalid_utf8_5[] = { (char)0xf4, (char)0x8f, (char)0xbf, (char)0xc0, 0 }; // U+110000
Utf8View utf8_5 { StringView { invalid_utf8_5 } };
char invalid_utf8_5[] = { (char)0xf4, (char)0x8f, (char)0xbf, (char)0xc0 }; // U+110000
Utf8View utf8_5 { StringView { invalid_utf8_5, 4 } };
EXPECT(!utf8_5.validate(valid_bytes));
EXPECT(valid_bytes == 0);
char invalid_utf8_6[] = { (char)0xf4, (char)0xa1, (char)0xb0, (char)0xbd, 0 }; // U+121c3d
Utf8View utf8_6 { StringView { invalid_utf8_6 } };
char invalid_utf8_6[] = { (char)0xf4, (char)0xa1, (char)0xb0, (char)0xbd }; // U+121c3d
Utf8View utf8_6 { StringView { invalid_utf8_6, 4 } };
EXPECT(!utf8_6.validate(valid_bytes));
EXPECT(valid_bytes == 0);
}
@ -122,8 +122,8 @@ TEST_CASE(decode_invalid_ut8)
{
// Test case 1 : Getting an extension byte as first byte of the code point
{
char raw_data[] = { 'a', 'b', (char)0xA0, 'd', 0 };
Utf8View view { StringView { raw_data } };
char raw_data[] = { 'a', 'b', (char)0xA0, 'd' };
Utf8View view { StringView { raw_data, 4 } };
u32 expected_characters[] = { 'a', 'b', 0xFFFD, 'd' };
String expected_underlying_bytes[] = { "a", "b", "\xA0", "d" };
size_t expected_size = sizeof(expected_characters) / sizeof(expected_characters[0]);
@ -140,8 +140,8 @@ TEST_CASE(decode_invalid_ut8)
// Test case 2 : Getting a non-extension byte when an extension byte is expected
{
char raw_data[] = { 'a', 'b', (char)0xC0, 'd', 'e', 0 };
Utf8View view { StringView { raw_data } };
char raw_data[] = { 'a', 'b', (char)0xC0, 'd', 'e' };
Utf8View view { StringView { raw_data, 5 } };
u32 expected_characters[] = { 'a', 'b', 0xFFFD, 'd', 'e' };
String expected_underlying_bytes[] = { "a", "b", "\xC0", "d", "e" };
size_t expected_size = sizeof(expected_characters) / sizeof(expected_characters[0]);
@ -158,8 +158,8 @@ TEST_CASE(decode_invalid_ut8)
// Test case 3 : Not enough bytes before the end of the string
{
char raw_data[] = { 'a', 'b', (char)0x90, 'd', 0 };
Utf8View view { StringView { raw_data } };
char raw_data[] = { 'a', 'b', (char)0x90, 'd' };
Utf8View view { StringView { raw_data, 4 } };
u32 expected_characters[] = { 'a', 'b', 0xFFFD, 'd' };
String expected_underlying_bytes[] = { "a", "b", "\x90", "d" };
size_t expected_size = sizeof(expected_characters) / sizeof(expected_characters[0]);
@ -176,8 +176,8 @@ TEST_CASE(decode_invalid_ut8)
// Test case 4 : Not enough bytes at the end of the string
{
char raw_data[] = { 'a', 'b', 'c', (char)0x90, 0 };
Utf8View view { StringView { raw_data } };
char raw_data[] = { 'a', 'b', 'c', (char)0x90 };
Utf8View view { StringView { raw_data, 4 } };
u32 expected_characters[] = { 'a', 'b', 'c', 0xFFFD };
String expected_underlying_bytes[] = { "a", "b", "c", "\x90" };
size_t expected_size = sizeof(expected_characters) / sizeof(expected_characters[0]);