Module JParseCode

module JParseCode: sig .. end

Low level (un)parsing of bytecode instructions.

val parse_code : JLib.IO.input -> int -> JClassLow.opcode array

Parse a sequence of instructions of given size (in bytes) and returns an array of instructions.

val unparse_code : 'a JLib.IO.output -> JClassLow.opcode array -> unit

Unparse a sequence of instructions.

Raises OpcodeLengthError if an opcode cannot be encoded in the allocated place.

exception OpcodeLengthError of int * JClassLow.opcode

OpcodeLengthError takes as argument the opcode and the excepted length that cannot be matched by unparsing the opcode.

val parse_full_opcode : JLib.IO.input -> (unit -> int) -> JClassLow.opcode

val unparse_instruction : 'a JLib.IO.output -> (unit -> int) -> int -> JClassLow.opcode -> unit

unparse_instruction ch count length opcode output on ch the opcode opcode in the length byte(s) format. E.g OpLoad (`Int,1) can be encoded on 4 bytes (wide iload 0x0001), 2 bytes (iload 0x01) or 1 byte (iload_1).

Raises OpcodeLengthError if the length provided cannot be matched.