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AK: Remove the fallible constructor from FixedMemoryStream

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This commit is contained in:
Tim Schumacher 2023-01-30 11:05:43 +01:00 • committed by Linus Groh
parent 8b2f23d016
commit 220fbcaa7e
31 changed files with 185 additions and 209 deletions
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18
Userland/Libraries/LibDebug/Dwarf/DIE.cpp
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@ -23,11 +23,11 @@ ErrorOr<void> DIE::rehydrate_from(u32 offset, Optional<u32> parent_offset)
{
m_offset = offset;
auto stream = TRY(FixedMemoryStream::construct(m_compilation_unit.dwarf_info().debug_info_data()));
FixedMemoryStream stream { m_compilation_unit.dwarf_info().debug_info_data() };
// Note: We can't just slice away from the input data here, since get_attribute_value will try to recover the original offset using seek().
TRY(stream->seek(m_offset));
m_abbreviation_code = TRY(stream->read_value<LEB128<size_t>>());
m_data_offset = TRY(stream->tell());
TRY(stream.seek(m_offset));
m_abbreviation_code = TRY(stream.read_value<LEB128<size_t>>());
m_data_offset = TRY(stream.tell());
if (m_abbreviation_code == 0) {
// An abbreviation code of 0 ( = null DIE entry) means the end of a chain of siblings
@ -41,25 +41,25 @@ ErrorOr<void> DIE::rehydrate_from(u32 offset, Optional<u32> parent_offset)
// We iterate the attributes data only to calculate this DIE's size
for (auto& attribute_spec : abbreviation_info->attribute_specifications) {
TRY(m_compilation_unit.dwarf_info().get_attribute_value(attribute_spec.form, attribute_spec.value, *stream, &m_compilation_unit));
TRY(m_compilation_unit.dwarf_info().get_attribute_value(attribute_spec.form, attribute_spec.value, stream, &m_compilation_unit));
}
}
m_size = TRY(stream->tell()) - m_offset;
m_size = TRY(stream.tell()) - m_offset;
m_parent_offset = parent_offset;
return {};
}
ErrorOr<Optional<AttributeValue>> DIE::get_attribute(Attribute const& attribute) const
{
auto stream = TRY(FixedMemoryStream::construct(m_compilation_unit.dwarf_info().debug_info_data()));
FixedMemoryStream stream { m_compilation_unit.dwarf_info().debug_info_data() };
// Note: We can't just slice away from the input data here, since get_attribute_value will try to recover the original offset using seek().
TRY(stream->seek(m_data_offset));
TRY(stream.seek(m_data_offset));
auto abbreviation_info = m_compilation_unit.abbreviations_map().get(m_abbreviation_code);
VERIFY(abbreviation_info);
for (auto const& attribute_spec : abbreviation_info->attribute_specifications) {
auto value = TRY(m_compilation_unit.dwarf_info().get_attribute_value(attribute_spec.form, attribute_spec.value, *stream, &m_compilation_unit));
auto value = TRY(m_compilation_unit.dwarf_info().get_attribute_value(attribute_spec.form, attribute_spec.value, stream, &m_compilation_unit));
if (attribute_spec.attribute == attribute) {
return value;
}