// licenses.
macro_rules! encode_tlv {
+ ($stream: expr, $type: expr, $field: expr, (default_value, $default: expr)) => {
+ encode_tlv!($stream, $type, $field, required)
+ };
($stream: expr, $type: expr, $field: expr, required) => {
BigSize($type).write($stream)?;
BigSize($field.serialized_length() as u64).write($stream)?;
}
macro_rules! encode_tlv_stream {
- ($stream: expr, {$(($type: expr, $field: expr, $fieldty: ident)),*}) => { {
+ ($stream: expr, {$(($type: expr, $field: expr, $fieldty: tt)),* $(,)*}) => { {
#[allow(unused_imports)]
use {
ln::msgs::DecodeError,
}
macro_rules! get_varint_length_prefixed_tlv_length {
+ ($len: expr, $type: expr, $field: expr, (default_value, $default: expr)) => {
+ get_varint_length_prefixed_tlv_length!($len, $type, $field, required)
+ };
($len: expr, $type: expr, $field: expr, required) => {
BigSize($type).write(&mut $len).expect("No in-memory data may fail to serialize");
let field_len = $field.serialized_length();
}
macro_rules! encode_varint_length_prefixed_tlv {
- ($stream: expr, {$(($type: expr, $field: expr, $fieldty: ident)),*}) => { {
+ ($stream: expr, {$(($type: expr, $field: expr, $fieldty: tt)),*}) => { {
use util::ser::BigSize;
let len = {
#[allow(unused_mut)]
}
macro_rules! check_tlv_order {
- ($last_seen_type: expr, $typ: expr, $type: expr, required) => {{
+ ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, (default_value, $default: expr)) => {{
+ #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
+ let invalid_order = ($last_seen_type.is_none() || $last_seen_type.unwrap() < $type) && $typ.0 > $type;
+ if invalid_order {
+ $field = $default;
+ }
+ }};
+ ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, required) => {{
#[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
let invalid_order = ($last_seen_type.is_none() || $last_seen_type.unwrap() < $type) && $typ.0 > $type;
if invalid_order {
- Err(DecodeError::InvalidValue)?
+ return Err(DecodeError::InvalidValue);
}
}};
- ($last_seen_type: expr, $typ: expr, $type: expr, option) => {{
+ ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, option) => {{
// no-op
}};
- ($last_seen_type: expr, $typ: expr, $type: expr, vec_type) => {{
+ ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, vec_type) => {{
// no-op
}};
}
macro_rules! check_missing_tlv {
- ($last_seen_type: expr, $type: expr, required) => {{
+ ($last_seen_type: expr, $type: expr, $field: ident, (default_value, $default: expr)) => {{
+ #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
+ let missing_req_type = $last_seen_type.is_none() || $last_seen_type.unwrap() < $type;
+ if missing_req_type {
+ $field = $default;
+ }
+ }};
+ ($last_seen_type: expr, $type: expr, $field: ident, required) => {{
#[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
let missing_req_type = $last_seen_type.is_none() || $last_seen_type.unwrap() < $type;
if missing_req_type {
- Err(DecodeError::InvalidValue)?
+ return Err(DecodeError::InvalidValue);
}
}};
- ($last_seen_type: expr, $type: expr, vec_type) => {{
+ ($last_seen_type: expr, $type: expr, $field: ident, vec_type) => {{
// no-op
}};
- ($last_seen_type: expr, $type: expr, option) => {{
+ ($last_seen_type: expr, $type: expr, $field: ident, option) => {{
// no-op
}};
}
macro_rules! decode_tlv {
+ ($reader: expr, $field: ident, (default_value, $default: expr)) => {{
+ decode_tlv!($reader, $field, required)
+ }};
($reader: expr, $field: ident, required) => {{
$field = ser::Readable::read(&mut $reader)?;
}};
}
macro_rules! decode_tlv_stream {
- ($stream: expr, {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}) => { {
+ ($stream: expr, {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}) => { {
use ln::msgs::DecodeError;
let mut last_seen_type: Option<u64> = None;
'tlv_read: loop {
match ser::Readable::read(&mut tracking_reader) {
Err(DecodeError::ShortRead) => {
if !tracking_reader.have_read {
- break 'tlv_read
+ break 'tlv_read;
} else {
- Err(DecodeError::ShortRead)?
+ return Err(DecodeError::ShortRead);
}
},
- Err(e) => Err(e)?,
+ Err(e) => return Err(e),
Ok(t) => t,
}
};
// Types must be unique and monotonically increasing:
match last_seen_type {
Some(t) if typ.0 <= t => {
- Err(DecodeError::InvalidValue)?
+ return Err(DecodeError::InvalidValue);
},
_ => {},
}
// As we read types, make sure we hit every required type:
$({
- check_tlv_order!(last_seen_type, typ, $type, $fieldty);
+ check_tlv_order!(last_seen_type, typ, $type, $field, $fieldty);
})*
last_seen_type = Some(typ.0);
// Finally, read the length and value itself:
- let length: ser::BigSize = Readable::read($stream)?;
+ let length: ser::BigSize = ser::Readable::read($stream)?;
let mut s = ser::FixedLengthReader::new($stream, length.0);
match typ.0 {
$($type => {
decode_tlv!(s, $field, $fieldty);
if s.bytes_remain() {
s.eat_remaining()?; // Return ShortRead if there's actually not enough bytes
- Err(DecodeError::InvalidValue)?
+ return Err(DecodeError::InvalidValue);
}
},)*
x if x % 2 == 0 => {
- Err(DecodeError::UnknownRequiredFeature)?
+ return Err(DecodeError::UnknownRequiredFeature);
},
_ => {},
}
}
// Make sure we got to each required type after we've read every TLV:
$({
- check_missing_tlv!(last_seen_type, $type, $fieldty);
+ check_missing_tlv!(last_seen_type, $type, $field, $fieldty);
})*
} }
}
macro_rules! impl_writeable {
($st:ident, $len: expr, {$($field:ident),*}) => {
impl ::util::ser::Writeable for $st {
- fn write<W: ::util::ser::Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
+ fn write<W: ::util::ser::Writer>(&self, w: &mut W) -> Result<(), $crate::io::Error> {
if $len != 0 {
w.size_hint($len);
}
}
impl ::util::ser::Readable for $st {
- fn read<R: ::std::io::Read>(r: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
+ fn read<R: $crate::io::Read>(r: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
Ok(Self {
$($field: ::util::ser::Readable::read(r)?),*
})
macro_rules! impl_writeable_len_match {
($struct: ident, $cmp: tt, ($calc_len: expr), {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
impl Writeable for $struct {
- fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
+ fn write<W: Writer>(&self, w: &mut W) -> Result<(), $crate::io::Error> {
let len = match *self {
$($match => $length,)*
};
}
impl ::util::ser::Readable for $struct {
- fn read<R: ::std::io::Read>(r: &mut R) -> Result<Self, DecodeError> {
+ fn read<R: $crate::io::Read>(r: &mut R) -> Result<Self, DecodeError> {
Ok(Self {
$($field: Readable::read(r)?),*
})
/// This is the preferred method of adding new fields that old nodes can ignore and still function
/// correctly.
macro_rules! write_tlv_fields {
- ($stream: expr, {$(($type: expr, $field: expr, $fieldty: ident)),* $(,)*}) => {
+ ($stream: expr, {$(($type: expr, $field: expr, $fieldty: tt)),* $(,)*}) => {
encode_varint_length_prefixed_tlv!($stream, {$(($type, $field, $fieldty)),*});
}
}
/// Reads a suffix added by write_tlv_fields.
macro_rules! read_tlv_fields {
- ($stream: expr, {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}) => { {
- let tlv_len = ::util::ser::BigSize::read($stream)?;
+ ($stream: expr, {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}) => { {
+ let tlv_len: ::util::ser::BigSize = ::util::ser::Readable::read($stream)?;
let mut rd = ::util::ser::FixedLengthReader::new($stream, tlv_len.0);
decode_tlv_stream!(&mut rd, {$(($type, $field, $fieldty)),*});
rd.eat_remaining().map_err(|_| ::ln::msgs::DecodeError::ShortRead)?;
}
macro_rules! init_tlv_based_struct_field {
+ ($field: ident, (default_value, $default: expr)) => {
+ $field
+ };
($field: ident, option) => {
$field
};
}
macro_rules! init_tlv_field_var {
+ ($field: ident, (default_value, $default: expr)) => {
+ let mut $field = $default;
+ };
($field: ident, required) => {
let mut $field = ::util::ser::OptionDeserWrapper(None);
};
/// if $fieldty is `vec_type`, then $field is a Vec, which needs to have its individual elements
/// serialized.
macro_rules! impl_writeable_tlv_based {
- ($st: ident, {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}) => {
+ ($st: ident, {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}) => {
impl ::util::ser::Writeable for $st {
- fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
+ fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), $crate::io::Error> {
write_tlv_fields!(writer, {
$(($type, self.$field, $fieldty)),*
});
}
impl ::util::ser::Readable for $st {
- fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
+ fn read<R: $crate::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
$(
init_tlv_field_var!($field, $fieldty);
)*
/// Attempts to read an unknown type byte result in DecodeError::UnknownRequiredFeature.
macro_rules! impl_writeable_tlv_based_enum {
($st: ident, $(($variant_id: expr, $variant_name: ident) =>
- {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}
+ {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}
),* $(,)*;
$(($tuple_variant_id: expr, $tuple_variant_name: ident)),* $(,)*) => {
impl ::util::ser::Writeable for $st {
- fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
+ fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), $crate::io::Error> {
match self {
$($st::$variant_name { $(ref $field),* } => {
let id: u8 = $variant_id;
}
impl ::util::ser::Readable for $st {
- fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
+ fn read<R: $crate::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
let id: u8 = ::util::ser::Readable::read(reader)?;
match id {
$($variant_id => {
Ok($st::$tuple_variant_name(Readable::read(reader)?))
}),*
_ => {
- Err(DecodeError::UnknownRequiredFeature)?
+ Err(DecodeError::UnknownRequiredFeature)
},
}
}
#[cfg(test)]
mod tests {
+ use io::{self, Cursor};
use prelude::*;
- use std::io::Cursor;
use ln::msgs::DecodeError;
- use util::ser::{Readable, Writeable, HighZeroBytesDroppedVarInt, VecWriter};
+ use util::ser::{Writeable, HighZeroBytesDroppedVarInt, VecWriter};
use bitcoin::secp256k1::PublicKey;
// The BOLT TLV test cases don't include any tests which use our "required-value" logic since
do_test!(concat!("fd00fe", "02", "0226"), None, None, None, Some(550));
}
- fn do_simple_test_tlv_write() -> Result<(), ::std::io::Error> {
+ fn do_simple_test_tlv_write() -> Result<(), io::Error> {
let mut stream = VecWriter(Vec::new());
stream.0.clear();
projects / rust-lightning / blobdiff