LFMFUNCID (0x1602)

Identifies a member function. This includes both static and non-static member functions.

struct MFuncId {
    TypeIndex parent_type;
    TypeIndex func_type;
    strz name;
    uint64_t decorated_name_hash;       // optional; may not be present
};

parent_type is the type of the class or struct that this member function is defined on. This field points into the TPI. The type record that it points to should be one of LF_STRUCTURE, LF_CLASS, LF_UNION, or LF_ENUM. (LF_ENUM is used only by Rust.)

func_type field is the type of the member function. It may identify static methods and instance methods. It is not known whether LF_MFUNC_ID is used for constructors, destructors, or other special methods.

name is the undecorated name of the function, e.g. AddRef. For special functions, such as constructors and conversion operations, each language has its own conventions for how to encode those names. The following is a non-exhaustive list of the special function names that have been observed in LF_MFUNC_ID records:

• {ctor} - constructors
• {dtor} - destructors
• operator unsigned __int64 - conversion method
• operator new
• operator=
• operator==
• operator!=
• operator++

decorated_name_hash has the same meaning as in the LF_FUNC_ID record, including its interaction with padding bytes.

Example

00000000 : 7f 10 00 00 a3 10 00 00 47 65 74 4e 65 78 74 45 : ........GetNextE
00000010 : 76 65 6e 74 53 6f 75 72 63 65 4f 62 6a 65 63 74 : ventSourceObject
00000020 : 49 64 00 46 48 d4 bc ac 43 c4 43 f1             : Id.FH...C.C.

• parent_type is 0x107f
• func_type is 0x10a3
• name is GetNextEventSourceObjectId
• decorated_name_hash is 0x43c443ac_bcd44846

Note the presence of the f1 padding byte at the end of the record. It is not part of decorated_name_hash.

Example

00000400 : 98 10 00 00 e8 00 00 00 1a 12 00 00 01 00 2e 00 : ................
00000410 : 02 16 7f 10 00 00 a3 10 00 00 47 65 74 4e 65 78 : ..........GetNex
00000420 : 74 45 76 65 6e 74 53 6f 75 72 63 65 4f 62 6a 65 : tEventSourceObje
00000430 : 63 74 49 64 00 46 48 d4 bc ac 43 c4 43 f1 1e 00 : ctId.FH...C.C...

In this example, parent_type is 0x107F, func_type is 0x10A3, name is GetNextEventSourceObjectId, and the decorated_name_hash is 0x43c443ac_bcd44846. Note the presence of a single alignment padding byte (F1).