Struct FuncRecord 

pub struct FuncRecord<'a> { /* private fields */ }

Zero-copy view of a variable-length MSFT_FuncRecord.

The base fixed portion is BASE_SIZE (0x18) bytes. Optional attribute DWORDs and per-parameter data follow.

Constructed by FuncIter; the backing slice length equals the record size encoded in the Info field.

Implementations

impl<'a> FuncRecord<'a>

pub const BASE_SIZE: usize = 0x18

Minimum record size (the fixed fields before optional attributes).

pub fn as_bytes(&self) -> &'a [u8]

Returns the raw backing bytes for this record.

pub fn info(&self) -> u32

Raw Info field at offset 0x00.

Low 16 bits = record size in bytes; high 16 bits = member index.

pub fn record_size(&self) -> usize

Record size in bytes (low 16 bits of info).

pub fn datatype(&self) -> i32

Return type (encoded DataType at offset 0x04).

Negative values encode simple VT_* types inline. Non-negative values are offsets into the type descriptor table.

pub fn flags(&self) -> u32

FUNCFLAG_* flags at offset 0x08.

pub fn vtable_offset(&self) -> i16

VTable slot offset at offset 0x0C.

pub fn funcdesc_size(&self) -> i16

FUNCDESC size at offset 0x0E.

pub fn fkccic(&self) -> u32

FKCCIC field at offset 0x10.

Encodes function kind (bits 0-2), invoke kind (bits 3-6), calling convention (bits 8-11), and flags (bits 7, 12).

pub fn func_kind(&self) -> u8

FUNC_* kind (bits 0-2 of fkccic).

0 = Virtual, 1 = PureVirtual, 2 = NonVirtual, 3 = Static, 4 = Dispatch.

pub fn invoke_kind(&self) -> u8

INVOKE_* kind (bits 3-6 of fkccic).

1 = Func, 2 = PropertyGet, 4 = PropertyPut, 8 = PropertyPutRef.

pub fn callconv(&self) -> u8

Calling convention (bits 8-11 of fkccic).

0 = FastCall, 1 = CDecl, 2 = Pascal, 4 = StdCall.

pub fn nrargs(&self) -> i16

Number of parameters at offset 0x14.

pub fn nroargs(&self) -> i16

Number of optional parameters at offset 0x16.

pub fn has_cust_data(&self) -> bool

Whether this function has custom data (FKCCIC bit 7).

pub fn has_arg_cust_data(&self) -> bool

Whether this function has per-argument custom data (FKCCIC bit 12).

pub fn help_context(&self) -> Option<i32>

Help context (attribute 0, offset 0x18).

Returns None if the record is too short to contain this field.

pub fn help_string_offset(&self) -> Option<i32>

Help string offset in the string table (attribute 1, offset 0x1C).

Returns None if the record is too short to contain this field.

pub fn oentry(&self) -> Option<i32>

oEntry / DISPID (attribute 2, offset 0x20).

For DISPATCH interfaces this is the DISPID. For MODULE types this is a name offset or ordinal.

Returns None if the record is too short to contain this field.

pub fn name_offset(&self) -> Option<i32>

Function name offset in the name table (attribute 3, offset 0x24).

Note: in practice, function names are read from the auxiliary arrays via TypeLib::func_name rather than from this record attribute.

Returns None if the record is too short to contain this field.

pub fn helpstringcontext(&self) -> Option<i32>

Help string context (attribute 4, offset 0x28).

Returns None if the record is too short to contain this field.

pub fn cust_data_offset(&self) -> Option<i32>

Offset into the CDGuids directory for this function’s custom data (attribute 5, offset 0x2C).

Only meaningful when has_cust_data returns true.

Returns None if the record is too short to contain this field.

pub fn arg_cust_data_offset(&self, arg_index: usize) -> Option<i32>

Returns the custom data offset for argument arg_index.

The per-argument custom data array follows all optional attributes (when FKCCIC bit 12 is set). Returns None if the function has no per-argument custom data or the index is out of bounds.

Trait Implementations

impl<'a> Clone for FuncRecord<'a>

fn clone(&self) -> FuncRecord<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for FuncRecord<'a>

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

Formats the value using the given formatter.

impl<'a> Copy for FuncRecord<'a>