package catapult

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in-package search v0.2.0

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Decoders.

This module provides a decoder type Decode.t to hold the decoding state, along with functions to decode specific primitives.

type t

val of_input : input -> t

create input makes a decoder for the given input.

val of_string : ?off:int -> ?len:int -> string -> t

Decoder reading from the string.

val of_bytes : ?off:int -> ?len:int -> bytes -> t

type 'a dec = t -> 'a

A decoder for values of type 'a. Decoders will raise Error to indicate failure.

val uint : t -> int64

Decode a varint-encoded unsigned integer

val int : t -> int64

Decode a varint-encoded integer

val u8 : t -> char

val u16 : t -> int

val u32 : t -> int32

val u64 : t -> int64

val i8 : t -> char

val i16 : t -> int

val i32 : t -> int32

val i64 : t -> int64

val bool : t -> bool

val f32 : t -> float

val f64 : t -> float

val string : t -> string

val data : t -> bytes

val data_of : size:int -> t -> bytes

val optional : 'a dec -> 'a option dec