Enum gimli::read::AttributeValue

#[repr(u64)]pub enum AttributeValue<R, Offset = <R as Reader>::Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset,  {
    Addr(u64),
    Block(R),
    Data1(u8),
    Data2(u16),
    Data4(u32),
    Data8(u64),
    Sdata(i64),
    Udata(u64),
    Exprloc(Expression<R>),
    Flag(bool),
    SecOffset(Offset),
    DebugAddrBase(DebugAddrBase<Offset>),
    DebugAddrIndex(DebugAddrIndex<Offset>),
    UnitRef(UnitOffset<Offset>),
    DebugInfoRef(DebugInfoOffset<Offset>),
    DebugInfoRefSup(DebugInfoOffset<Offset>),
    DebugLineRef(DebugLineOffset<Offset>),
    LocationListsRef(LocationListsOffset<Offset>),
    DebugLocListsBase(DebugLocListsBase<Offset>),
    DebugLocListsIndex(DebugLocListsIndex<Offset>),
    DebugMacinfoRef(DebugMacinfoOffset<Offset>),
    DebugMacroRef(DebugMacroOffset<Offset>),
    RangeListsRef(RangeListsOffset<Offset>),
    DebugRngListsBase(DebugRngListsBase<Offset>),
    DebugRngListsIndex(DebugRngListsIndex<Offset>),
    DebugTypesRef(DebugTypeSignature),
    DebugStrRef(DebugStrOffset<Offset>),
    DebugStrRefSup(DebugStrOffset<Offset>),
    DebugStrOffsetsBase(DebugStrOffsetsBase<Offset>),
    DebugStrOffsetsIndex(DebugStrOffsetsIndex<Offset>),
    DebugLineStrRef(DebugLineStrOffset<Offset>),
    String(R),
    Encoding(DwAte),
    DecimalSign(DwDs),
    Endianity(DwEnd),
    Accessibility(DwAccess),
    Visibility(DwVis),
    Virtuality(DwVirtuality),
    Language(DwLang),
    AddressClass(DwAddr),
    IdentifierCase(DwId),
    CallingConvention(DwCc),
    Inline(DwInl),
    Ordering(DwOrd),
    FileIndex(u64),
}

The value of an attribute in a DebuggingInformationEntry.

Variants

Addr(u64)

"Refers to some location in the address space of the described program."

Block(R)

A slice of an arbitrary number of bytes.

Data1(u8)

A one byte constant data value. How to interpret the byte depends on context.

From section 7 of the standard: "Depending on context, it may be a signed integer, an unsigned integer, a floating-point constant, or anything else."

Data2(u16)

A two byte constant data value. How to interpret the bytes depends on context.

These bytes have been converted from R::Endian. This may need to be reversed if this was not required.

From section 7 of the standard: "Depending on context, it may be a signed integer, an unsigned integer, a floating-point constant, or anything else."

Data4(u32)

A four byte constant data value. How to interpret the bytes depends on context.

These bytes have been converted from R::Endian. This may need to be reversed if this was not required.

From section 7 of the standard: "Depending on context, it may be a signed integer, an unsigned integer, a floating-point constant, or anything else."

Data8(u64)

An eight byte constant data value. How to interpret the bytes depends on context.

These bytes have been converted from R::Endian. This may need to be reversed if this was not required.

From section 7 of the standard: "Depending on context, it may be a signed integer, an unsigned integer, a floating-point constant, or anything else."

Sdata(i64)

A signed integer constant.

Udata(u64)

An unsigned integer constant.

Exprloc(Expression<R>)

"The information bytes contain a DWARF expression (see Section 2.5) or location description (see Section 2.6)."

Flag(bool)

A boolean that indicates presence or absence of the attribute.

SecOffset(Offset)

An offset into another section. Which section this is an offset into depends on context.

DebugAddrBase(DebugAddrBase<Offset>)

An offset to a set of addresses in the .debug_addr section.

DebugAddrIndex(DebugAddrIndex<Offset>)

An index into a set of addresses in the .debug_addr section.

UnitRef(UnitOffset<Offset>)

An offset into the current compilation unit.

DebugInfoRef(DebugInfoOffset<Offset>)

An offset into the current .debug_info section, but possibly a different compilation unit from the current one.

DebugInfoRefSup(DebugInfoOffset<Offset>)

An offset into the .debug_info section of the supplementary object file.

DebugLineRef(DebugLineOffset<Offset>)

An offset into the .debug_line section.

LocationListsRef(LocationListsOffset<Offset>)

An offset into either the .debug_loc section or the .debug_loclists section.

DebugLocListsBase(DebugLocListsBase<Offset>)

An offset to a set of offsets in the .debug_loclists section.

DebugLocListsIndex(DebugLocListsIndex<Offset>)

An index into a set of offsets in the .debug_loclists section.

DebugMacinfoRef(DebugMacinfoOffset<Offset>)

An offset into the .debug_macinfo section.

DebugMacroRef(DebugMacroOffset<Offset>)

An offset into the .debug_macro section.

RangeListsRef(RangeListsOffset<Offset>)

An offset into the .debug_ranges section.

DebugRngListsBase(DebugRngListsBase<Offset>)

An offset to a set of offsets in the .debug_rnglists section.

DebugRngListsIndex(DebugRngListsIndex<Offset>)

An index into a set of offsets in the .debug_rnglists section.

DebugTypesRef(DebugTypeSignature)

A type signature.

DebugStrRef(DebugStrOffset<Offset>)

An offset into the .debug_str section.

DebugStrRefSup(DebugStrOffset<Offset>)

An offset into the .debug_str section of the supplementary object file.

DebugStrOffsetsBase(DebugStrOffsetsBase<Offset>)

An offset to a set of entries in the .debug_str_offsets section.

DebugStrOffsetsIndex(DebugStrOffsetsIndex<Offset>)

An index into a set of entries in the .debug_str_offsets section.

DebugLineStrRef(DebugLineStrOffset<Offset>)

An offset into the .debug_line_str section.

String(R)

A slice of bytes representing a string. Does not include a final null byte. Not guaranteed to be UTF-8 or anything like that.

Encoding(DwAte)

The value of a DW_AT_encoding attribute.

DecimalSign(DwDs)

The value of a DW_AT_decimal_sign attribute.

Endianity(DwEnd)

The value of a DW_AT_endianity attribute.

Accessibility(DwAccess)

The value of a DW_AT_accessibility attribute.

Visibility(DwVis)

The value of a DW_AT_visibility attribute.

Virtuality(DwVirtuality)

The value of a DW_AT_virtuality attribute.

Language(DwLang)

The value of a DW_AT_language attribute.

AddressClass(DwAddr)

The value of a DW_AT_address_class attribute.

IdentifierCase(DwId)

The value of a DW_AT_identifier_case attribute.

CallingConvention(DwCc)

The value of a DW_AT_calling_convention attribute.

Inline(DwInl)

The value of a DW_AT_inline attribute.

Ordering(DwOrd)

The value of a DW_AT_ordering attribute.

FileIndex(u64)

An index into the filename entries from the line number information table for the compilation unit containing this value.

Implementations

impl<R, Offset> AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

pub fn u8_value(&self) -> Option<u8>

Try to convert this attribute's value to a u8.

pub fn u16_value(&self) -> Option<u16>

Try to convert this attribute's value to a u16.

pub fn udata_value(&self) -> Option<u64>

Try to convert this attribute's value to an unsigned integer.

pub fn sdata_value(&self) -> Option<i64>

Try to convert this attribute's value to a signed integer.

pub fn offset_value(&self) -> Option<R::Offset>

Try to convert this attribute's value to an offset.

pub fn exprloc_value(&self) -> Option<Expression<R>>

Try to convert this attribute's value to an expression or location buffer.

Expressions and locations may be DW_FORM_block* or DW_FORM_exprloc. The standard doesn't mention DW_FORM_block* as a possible form, but it is encountered in practice.

pub fn string_value(&self, debug_str: &DebugStr<R>) -> Option<R>

Try to return this attribute's value as a string slice.

If this attribute's value is either an inline DW_FORM_string string, or a DW_FORM_strp reference to an offset into the .debug_str section, return the attribute's string value as Some. Other attribute value forms are returned as None.

Warning: this function does not handle all possible string forms. Use Dwarf::attr_string instead.

pub fn string_value_sup(
    &self,
    debug_str: &DebugStr<R>,
    debug_str_sup: Option<&DebugStr<R>>
) -> Option<R>

Try to return this attribute's value as a string slice.

If this attribute's value is either an inline DW_FORM_string string, or a DW_FORM_strp reference to an offset into the .debug_str section, or a DW_FORM_strp_sup reference to an offset into a supplementary object file, return the attribute's string value as Some. Other attribute value forms are returned as None.

Warning: this function does not handle all possible string forms. Use Dwarf::attr_string instead.

Trait Implementations

impl<R: Clone, Offset: Clone> Clone for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

fn clone(&self) -> AttributeValue<R, Offset>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<R: Copy, Offset: Copy> Copy for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

impl<R: Debug, Offset: Debug> Debug for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<R: Eq, Offset: Eq> Eq for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

impl<R: PartialEq, Offset: PartialEq> PartialEq<AttributeValue<R, Offset>> for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

fn eq(&self, other: &AttributeValue<R, Offset>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &AttributeValue<R, Offset>) -> bool

This method tests for !=.

impl<R, Offset> StructuralEq for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset, 

impl<R, Offset> StructuralPartialEq for AttributeValue<R, Offset> where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset,