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[WIP] Asset contracts 2.0 #54

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9a941bc
Deprecate std::error::Error::description
stevenroose May 28, 2020
29af481
Revert "Add support for hashing JSON asset contract"
stevenroose May 26, 2020
99a9603
Explicitly use serde-feature for serde impls
stevenroose May 26, 2020
4adaa8f
Add contracts module
stevenroose May 26, 2020
dfc278f
Unit tests for contract module
stevenroose May 27, 2020
ec24e7c
Add TODO
stevenroose May 28, 2020
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14 changes: 7 additions & 7 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,9 @@ repository = "https://github.com/ElementsProject/rust-elements/"
documentation = "https://docs.rs/elements/"

[features]
default = [ "json-contract" ]
default = [ "contracts" ]

json-contract = [ "serde_json" ]
contracts = [ "serde", "serde_cbor", "serde_json" ]
"serde-feature" = [
"bitcoin/use-serde",
"serde"
Expand All @@ -25,13 +25,13 @@ bitcoin = "0.23"
# to avoid requiring two version of bitcoin_hashes.
bitcoin_hashes = "0.7.6"

# Used for ContractHash::from_json_contract.
serde_json = { version = "<=1.0.44", optional = true }
serde = { version = "1.0", optional = true, features = ["derive"] }

[dependencies.serde]
version = "1.0"
optional = true
# Used for contracts module.
serde_cbor = { version = "0.11.1", optional = true }
serde_json = { version = "<=1.0.44", optional = true }

[dev-dependencies]
rand = "0.6.5"
serde_json = "<=1.0.44"
bitcoin = { version = "0.23", features = ["use-serde"] }
24 changes: 7 additions & 17 deletions src/address.rs
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Expand Up @@ -30,7 +30,7 @@ use bitcoin::util::base58;
use bitcoin::PublicKey;
use bitcoin::hashes::Hash;
use bitcoin::secp256k1;
#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
use serde;

use blech32;
Expand Down Expand Up @@ -75,6 +75,7 @@ impl fmt::Display for AddressError {
}
}

#[allow(deprecated)]
impl error::Error for AddressError {
fn cause(&self) -> Option<&error::Error> {
match *self {
Expand All @@ -87,16 +88,7 @@ impl error::Error for AddressError {
}

fn description(&self) -> &str {
match *self {
AddressError::Base58(ref e) => e.description(),
AddressError::Bech32(ref e) => e.description(),
AddressError::Blech32(ref e) => e.description(),
AddressError::InvalidAddress(..) => "was unable to parse the address",
AddressError::UnsupportedWitnessVersion(..) => "unsupported witness version",
AddressError::InvalidBlindingPubKey(..) => "an invalid blinding pubkey was encountered",
AddressError::InvalidWitnessProgramLength => "program length incompatible with version",
AddressError::InvalidWitnessVersion => "invalid witness script version",
}
"description() is deprecated; use Display"
}
}

Expand Down Expand Up @@ -603,7 +595,7 @@ impl FromStr for Address {
}
}

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
impl<'de> serde::Deserialize<'de> for Address {
#[inline]
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
Expand Down Expand Up @@ -646,7 +638,7 @@ impl<'de> serde::Deserialize<'de> for Address {
}
}

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
impl serde::Serialize for Address {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
Expand All @@ -662,8 +654,6 @@ mod test {
use bitcoin::util::key;
use bitcoin::Script;
use bitcoin::secp256k1::{PublicKey, Secp256k1};
#[cfg(feature = "serde")]
use serde_json;

fn roundtrips(addr: &Address) {
assert_eq!(
Expand All @@ -678,9 +668,9 @@ mod test {
"script round-trip failed for {}",
addr,
);
#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
assert_eq!(
serde_json::from_value::<Address>(serde_json::to_value(&addr).unwrap()).ok().as_ref(),
::serde_json::from_value::<Address>(serde_json::to_value(&addr).unwrap()).ok().as_ref(),
Some(addr)
);
}
Expand Down
8 changes: 4 additions & 4 deletions src/block.rs
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Expand Up @@ -21,8 +21,8 @@ use bitcoin;
use bitcoin::blockdata::script::Script;
use bitcoin::{BitcoinHash, BlockHash, VarInt};
use bitcoin::hashes::{Hash, sha256};
#[cfg(feature = "serde")] use serde::{Deserialize, Deserializer, Serialize, Serializer};
#[cfg(feature = "serde")] use std::fmt;
#[cfg(feature = "serde-feature")] use serde::{Deserialize, Deserializer, Serialize, Serializer};
#[cfg(feature = "serde-feature")] use std::fmt;

use dynafed;
use Transaction;
Expand All @@ -49,7 +49,7 @@ pub enum ExtData {
},
}

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
impl<'de> Deserialize<'de> for ExtData {
fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error> {
use serde::de;
Expand Down Expand Up @@ -149,7 +149,7 @@ impl<'de> Deserialize<'de> for ExtData {
}
}

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
impl Serialize for ExtData {
fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
use serde::ser::SerializeStruct;
Expand Down
6 changes: 3 additions & 3 deletions src/confidential.rs
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Expand Up @@ -17,7 +17,7 @@
//! Structures representing Pedersen commitments of various types
//!

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
use serde::{Deserialize, Deserializer, Serialize, Serializer};

use std::{io, fmt};
Expand Down Expand Up @@ -137,7 +137,7 @@ macro_rules! impl_confidential_commitment {
}
}

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
impl Serialize for $name {
fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
use serde::ser::SerializeSeq;
Expand All @@ -161,7 +161,7 @@ macro_rules! impl_confidential_commitment {
}
}

#[cfg(feature = "serde")]
#[cfg(feature = "serde-feature")]
impl<'de> Deserialize<'de> for $name {
fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error> {
use serde::de::{Error, Visitor, SeqAccess};
Expand Down
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