avail/avail.interpreter.levelOne/L1OperandType

L1OperandType

enum L1OperandType : Enum<L1OperandType>

An L1 instruction consists of an L1Operation and its operands, each implicitly described by the operation's L1OperandTypes. These operand types say how to interpret some integer that occurs as the encoding of an actual operand of an instruction.

Author

Mark van Gulik

Entries

IMMEDIATE

The integer in the nybblecode stream is to be treated as itself, a simple integer.

LITERAL

The integer in the nybblecode stream is to be treated as an index into the current compiled code object's literals. This allows instructions to refer to arbitrary AvailObjects.

LOCAL

The integer in the nybblecode stream is to be treated as an index into the arguments and local variables of the continuation. The arguments come first, numbered from 1, then the local variables.

OUTER

The integer in the nybblecode stream is to be treated as an index into the current function's captured outer variables.

Properties

name

val name: String

ordinal

val ordinal: Int

Functions

valueOf

fun valueOf(value: String): L1OperandType

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

values

fun values(): Array<L1OperandType>

Returns an array containing the constants of this enum type, in the order they're declared.