CorElementType Enumeration

Article
03/30/2009

Specifies a common language runtime Type, a type modifier, or information about a type in a metadata type signature.

typedef enum CorElementType {
    ELEMENT_TYPE_END            = 0x0,
    ELEMENT_TYPE_VOID           = 0x1,
    ELEMENT_TYPE_BOOLEAN        = 0x2,
    ELEMENT_TYPE_CHAR           = 0x3,
    ELEMENT_TYPE_I1             = 0x4,
    ELEMENT_TYPE_U1             = 0x5,
    ELEMENT_TYPE_I2             = 0x6,
    ELEMENT_TYPE_U2             = 0x7,
    ELEMENT_TYPE_I4             = 0x8,
    ELEMENT_TYPE_U4             = 0x9,
    ELEMENT_TYPE_I8             = 0xa,
    ELEMENT_TYPE_U8             = 0xb,
    ELEMENT_TYPE_R4             = 0xc,
    ELEMENT_TYPE_R8             = 0xd,
    ELEMENT_TYPE_STRING         = 0xe,
        
    ELEMENT_TYPE_PTR            = 0xf,
    ELEMENT_TYPE_BYREF          = 0x10,
        
    ELEMENT_TYPE_VALUETYPE      = 0x11,
    ELEMENT_TYPE_CLASS          = 0x12,
    ELEMENT_TYPE_VAR            = 0x13,
    ELEMENT_TYPE_ARRAY          = 0x14,
    ELEMENT_TYPE_GENERICINST    = 0x15,
    ELEMENT_TYPE_TYPEDBYREF     = 0x16,

    ELEMENT_TYPE_I              = 0x18,
    ELEMENT_TYPE_U              = 0x19,
    ELEMENT_TYPE_FNPTR          = 0x1B,
    ELEMENT_TYPE_OBJECT         = 0x1C,
    ELEMENT_TYPE_SZARRAY        = 0x1D,
    ELEMENT_TYPE_MVAR           = 0x1e,

    ELEMENT_TYPE_CMOD_REQD      = 0x1F,
    ELEMENT_TYPE_CMOD_OPT       = 0x20,

    ELEMENT_TYPE_INTERNAL       = 0x21,
    ELEMENT_TYPE_MAX            = 0x22,

    ELEMENT_TYPE_MODIFIER       = 0x40,
    ELEMENT_TYPE_SENTINEL       = 0x01 | ELEMENT_TYPE_MODIFIER,
    ELEMENT_TYPE_PINNED         = 0x05 | ELEMENT_TYPE_MODIFIER,
    ELEMENT_TYPE_R4_HFA         = 0x06 | ELEMENT_TYPE_MODIFIER,
    ELEMENT_TYPE_R8_HFA         = 0x07 | ELEMENT_TYPE_MODIFIER

} CorElementType;

Members

Member	Description
ELEMENT_TYPE_END	Used internally.
ELEMENT_TYPE_VOID	A void type.
ELEMENT_TYPE_BOOLEAN	A Boolean type
ELEMENT_TYPE_CHAR	A character type.
ELEMENT_TYPE_I1	A signed 1-byte integer.
ELEMENT_TYPE_U1	An unsigned 1-byte integer.
ELEMENT_TYPE_I2	A signed 2-byte integer.
ELEMENT_TYPE_U2	An unsigned 2-byte integer.
ELEMENT_TYPE_I4	A signed 4-byte integer.
ELEMENT_TYPE_U4	An unsigned 4-byte integer.
ELEMENT_TYPE_I8	A signed 8-byte integer.
ELEMENT_TYPE_U8	An unsigned 8-byte integer.
ELEMENT_TYPE_R4	A 4-byte floating point.
ELEMENT_TYPE_R8	An 8-byte floating point.
ELEMENT_TYPE_STRING	A System.String type.
ELEMENT_TYPE_PTR	A pointer type modifier.
ELEMENT_TYPE_BYREF	A reference type modifier.
ELEMENT_TYPE_VALUETYPE	A value type modifier.
ELEMENT_TYPE_CLASS	A class type modifier.
ELEMENT_TYPE_VAR	A class variable type modifier.
ELEMENT_TYPE_ARRAY	A multi-dimensional array type modifier.
ELEMENT_TYPE_GENERICINST	A type modifier for generic types.
ELEMENT_TYPE_TYPEDBYREF	A typed reference.
ELEMENT_TYPE_I	Size of a native integer.
ELEMENT_TYPE_U	Size of an unsigned native integer.
ELEMENT_TYPE_FNPTR	A pointer to a function.
ELEMENT_TYPE_OBJECT	A System.Object type.
ELEMENT_TYPE_SZARRAY	A single-dimensional, zero lower-bound array type modifier.
ELEMENT_TYPE_MVAR	A method variable type modifier.
ELEMENT_TYPE_CMOD_REQD	A C language required modifier.
ELEMENT_TYPE_CMOD_OPT	A C language optional modifier.
ELEMENT_TYPE_INTERNAL	Used internally.
ELEMENT_TYPE_MAX	An invalid type.
ELEMENT_TYPE_MODIFIER	Used internally.
ELEMENT_TYPE_SENTINEL	A type modifier that is a sentinel for a list of a variable number of parameters.
ELEMENT_TYPE_PINNED	Used internally.
ELEMENT_TYPE_R4_HFA	Used internally.
ELEMENT_TYPE_R8_HFA	Used internally.

Remarks

The type modifiers form the basis for representing more complex types. A CorElementType type modifier value is applied to the value that immediately follows it in the type signature. The value that follows the CorElementType type modifier value can be a CorElementType simple type value, a metadata token, or other value as specified in the table below.

Type Modifier	Format
ELEMENT_TYPE_PTR	ELEMENT_TYPE_PTR <a CorElementType value>
ELEMENT_TYPE_BYREF	ELEMENT_TYPE_BYREF <a CorElementType value>
ELEMENT_TYPE_VALUETYPE	ELEMENT_TYPE_VALUETYPE <an mdTypeDef metadata token>
ELEMENT_TYPE_CLASS	ELEMENT_TYPE_CLASS <an mdTypeDef metadata token>
ELEMENT_TYPE_VAR	ELEMENT_TYPE_VAR <ELEMENT_TYPE_U1>
ELEMENT_TYPE_ARRAY	ELEMENT_TYPE_ARRAY <a CorElementType value> <rank> <count1> <bound1> ... <countN> <boundN>
ELEMENT_TYPE_GENERICINST	ELEMENT_TYPE_GENERICINST <an mdTypeDef metadata token> <argument Count> <arg1> ... <argN>
ELEMENT_TYPE_FNPTR	ELEMENT_TYPE_FNPTR <complete signature for the function including calling convention>
ELEMENT_TYPE_SZARRAY	ELEMENT_TYPE_SZARRAY <a CorElementType value>
ELEMENT_TYPE_MVAR	ELEMENT_TYPE_MVAR <ELEMENT_TYPE_U1>
ELEMENT_TYPE_CMOD_REQD	ELEMENT_TYPE_<a mdTypeRef or mdTypeDef metadata token>
ELEMENT_TYPE_CMOD_OPT	E_T_CMOD_OPT <a mdTypeRef or mdTypeDef metadata token>

Requirements

Platforms: Windows 2000, Windows XP, Windows Server 2003 family

Header: CorHdr.h

.NET Framework Version: 2.0, 1.1, 1.0

CorElementType Enumeration

Members

Remarks

Requirements

See Also

Concepts

Additional resources