6ba7758b30 Improve array macros (Tobin C. Harding)
Pull request description:
Currently we have two macros used when creating array wrapper types, one is in `internals` and the other in `bitcoin::internal_macros`. It is not immediately obvious what is what and why there are two.
Improve the macros by:
- Move the inherent functions to `impl_array_newtype`
- Use `*_byte_array` for the names instead of `*_bytes`
- Re-name the other macro to match what it now does
ACKs for top commit:
apoelstra:
ACK 6ba7758b30
Tree-SHA512: 36ed0fae0d28f24d29287062eb05bbc1e9e8b565f4ff41fd893503a25404ed8e185a34d75e398a8a660923ffda3b832b6157011598d5a75a5c4aafdffc74af2a
Currently we have a dependency on `hex_lit` and it is used in exactly
one place outside of test code, if we instead use a hardcoded array
instead we can move the `hex_lit` dependency to `dev-dependencies`.
Hard code the genesis block script bytes as an array of hex digits, link
to the blockstream explorer for those interested and comment the bytes
liberally since it took me a while to work out what they were.
Move the `hex_lit` dependency and update the lock files.
802af8e417 Removed //! spare line at end of headers (jamil.lambert)
Pull request description:
Some of the headers had a //! at the end but most didn't. They have all been removed in bitcoin/src/ to make the files consistent
ACKs for top commit:
apoelstra:
ACK 802af8e417
Tree-SHA512: a1eb0dda76af68cb96352f6b31231fa5391d49e11df924065e76871f82231ec0d5751190663f142240e5d757975937387243d1fdac3684d9bdbd7e2362dbd0a7
Currently we use the `Hash` trait in a bunch of places to call
`all_zeros`. We are attempting to improve the `hashes` API and this
usage is both unnecessary and also hindering that effort.
Use the concrete type (e.g. `BlockHash`) instead of calling through the
trait method.
Refactor only, no logic changes.
Currently we have two macros used when creating array wrapper types,
one is in `internals` and the other in `bitcoin::internal_macros`. It
is not immediately obvious what is what and why there are two.
Improve the macros by:
- Move the inherent functions to `impl_array_newtype`
- Use `*_byte_array` for the names instead of `*_bytes` for functions
that return arrays
- Add `as_bytes` to return a slice
- Add `to_bytes` to return a vector
- Re-name the other macro to match what it now does
A release or so ago we added `non_exhaustive` to the `Network` enum,
this turned out to make usage of the enum un-ergonomic for downstream
users. After much debate we decided that a way forward was to just
minimize the usage of the enum in the public API by instead use
`AsRef<Params>` so that downstream could define their own network enum
based on the networks they support.
Minimize usage of `Network` by using `AsRef<Params>` as a parameter type
instead. "minimize" because the `Network` still appears in some places.
Move the following unit types to the new `units` crate:
- `locktime::absolute::{Height, Time}`
- `locktime::relative::{Height, Time}`
- `FeeRate`
- `Weight`
Also move the `parse` module as well as constants as required.
Do minimal changes to get things building:
- Feature gate on "alloc" as needed.
- Remove rustdocs that use `bitcoin` types.
- Re-export units types so this is a non-breaking change.
- Fix import paths.
BIP-68 activated a fair while ago (circa 2019) and since then only
transaction versions 1 and 2 have been considered standard.
Currently in our `Transaction` struct we use an `i32`, this means users
can construct a non-standard transaction if they do not first look up
what the value should be. We can help folk out here by abstracting over
the version number.
Since the version number only governs standardness elect to make the
inner `i32` public (ie., not an invariant). The aim of the type is to
make life easy not restrict what versions are used.
Add transaction::Version data type that simply provides two consts `ONE`
and `TWO`.
Add a `Default` impl on `Version` that returns `Version::TWO`.
In tests that used version 0, instead use `Version::default` because the
test obviously does not care.
The `network` module deals with data types and logic related to
internetworking bitcoind nodes, this is commonly referred to as the p2p
layer.
Rename the `network` module to `p2p` and fix all the paths.
1c3bbd4bf2 internals: Remove attribution from all files (Tobin C. Harding)
99673ab5c4 hashes: Introduce SPDX license identifiers (Tobin C. Harding)
984fe69448 bitcoin: Remove attribution from all files (Tobin C. Harding)
Pull request description:
Please note, whether or not we need a per-file license comment is out of scope for this PR. This PR leaves us with the most simple per-file solution possible and leaves the merit of per-file license comment to be discussed on another day.
Simplify the per-file license stuff by doing:
- Remove the attribution line from each file.
Currently we have a mishmash of attribution lines accompanying the SPDX identifier. These lines are basically meaningless because:
- The date is often wrong
- The original author attributed is not the only contributor to a file
- The term "rust bitcoin developers" is basically just noise
- Introduce SPDX license identifiers into `hashes` and remove attribution line (ie, make `hashes` uniform with `bitcoin`)
Required before merge please:
- [x] ack from apoelstra because as the library original author many of the changes in this PR remove his name
- [x] ack from Kixunil because he had some concerns in the issue descussion
Fix: #1816
ACKs for top commit:
Kixunil:
ACK 1c3bbd4bf2
sanket1729:
ACK 1c3bbd4bf2
apoelstra:
ACK 1c3bbd4bf2
Tree-SHA512: c5ac05c5eb23b3b6a760f707c344b22f5871a4dedee4990b1840f57e4cee1d38560ff4507c354bbf29bc8ff05a179d95d7e100fcf19bd93c5362344a352c7b5a
Currently we have a mishmash of attribution lines accompanying the SPDX
identifier. These lines are basically meaningless because:
- The date is often wrong
- The original author attributed is not the only contributor to a file
- The term "rust bitcoin developers" is basically just noise
Just remove all the attribution lines and be done with it. While we are
at it add an SPDX line to the few files missing it, whether this license
nonsense is even needed is left as an argument for another day.
fabcde036f Use package in manifest and shorten import (Tobin C. Harding)
Pull request description:
We can use `package` to rename `bitcoin_hashes` to `hashes` and `bitcoin_internals` to `internals`. This makes imports more terse with no loss of meaning.
ACKs for top commit:
apoelstra:
ACK fabcde036f
Kixunil:
ACK fabcde036f
Tree-SHA512: bc5bff6f7f6bf3b68ba1e0644a83da014081d8c6c9d578c21cb54fdd56a018f68733dd1135d05b590ba193ed9efd12fa9019182c1fed347e604d8548f6ef9103
We can use `package` to rename `bitcoin_hashes` to `hashes` and
`bitcoin_internals` to `internals`. This makes imports more terse with
no loss of meaning.
This improves readability of converting `BlockHash` into `ChainHash`.
It's useful in e.g. Electrum protocol which sends `BlockHash`
(serialized backward).
Closes#1751
Currently we have a code comment that is supposed to assist devs in
maintaining the `network::constants::Network` type by failing to build
if a new variant is added. This plays havoc with the formatter because
the comment is hanging at the bottom of a match block and the formatting
thinks its for the proceeding line of code.
Instead of using a code comment add a panic so the unit test fails if a
new variant is added to `network::constants::Network`.
7d1645aea0 Add constant for coinbase maturity (benthecarman)
Pull request description:
Not sure if this is the best place to put this but it is nice to have a constant for this instead of having other libraries make their own (ie https://github.com/lightningdevkit/rust-lightning/pull/1924#pullrequestreview-1222807626)
ACKs for top commit:
tcharding:
ACK 7d1645aea0
apoelstra:
ACK 7d1645aea0
Tree-SHA512: 5ac2a3359cadd303158c66ba45db8f4bf8cc80b6c19604262999ff361fd0bd98e2a4851c57da1962cb5c74f5789a85c8b3861f1742706a60ce1fbc57c3c200cc
Currently we have an associated type on hash types `Inner` with
accompanying methods `into_inner`, `from_inner`, `as_inner`. Also, we
provide a way to create new wrapped hash types. The use of 'inner'
becomes ambiguous with the addition of wrapped types because the inner
could be the inner hash type or the `Inner` byte array of the inner
wrapped hash type.
In an effort to make the API more clear and uniform do the following:
- Rename `Inner` -> `Bytes`
- Rename `*_inner` -> `*_byte_array`
- Rename the inner hash to/from methods to `*_raw_hash`
Correct method prefix `into_` -> `to_` because theses methods convert
owned `Copy` types.
Add the trait Bound `Copy` to the `Bytes` type because we rely on this
trait bound for the conversion methods to be correctly named according
to convention.
Because of the dependency hole created by `secp256k1` this patch changes
the secp dependency to a git tag dependency that includes changes to the
hashes calls required so that we can get green lights on CI in this
repo.
So far we deserialized hex into `Vec<u8>` at run time. This was mainly
in tests where it had negligible performance cost. However moving the
computation to compile time has a few benefits: it allows proving the
length of the decoded bytes and identifies potential typos before the
code goes through LLVM and other compilation machinery which makes
feedback faster.
This change uses the `hex_lit` crate to move computation to compile
time. It is implemented as `const` declarative macro which doesn't blow
up compilation time.
The `ToHex` trait was replaced by either simple `Display`/`LowerHex`
where appropriate or `DisplayHex` from `bitcoin_internals` which is
faster.
This change replaces the usages and removes the trait.
This makes the code less noisy and is a preparation for changing it to
`const`-based literal. Because of the preparation, places that used
variables to store the hex string were changed to constants.
There are still some instances of `Vec::from_hex` left - where they
won't be changeable to `const` and where `hex!` is unavailable
(integration tests). These may be dealt with later.
See also #1189
This can be replicated by deleting the `type PackedLockTime = LockTime'
line, and then running
find . -type f | xargs sed -i 's/PackedLockTime/LockTime/g
at the root of the repo.
Amount of coins available stay in the same across Bitcoin network:
signet, testnet, mainet. From my understanding this is a leftover
from some potential multi-chain support.
The Bitcoin block version is a signed integer for historical reasons,
but we bit twiddle it like an unsigned integer and during consensus
encode/decode we cast the signed value to an unsigned value.
In order to hide this confusion, make the inner value private and add a
couple of constants for v1 and v2 block versions.
Currently the types in the block module have longer names than
necessary, "header" and "version" identifiers contain the word "block",
this is unnecessary because we can write `block::Header` instead of
`BlockHeader` when context is required. This allows us to use the naked
type `Header` inside the `block` module with no loss of clarity.
We are stuck with `BlockHash` because the type is defined along with all
the other hash types in `hash_types`, leave it as is for now but
re-export it from the `block` module to assist in putting types that are
used together in scope in the same place, making import statements more
ergonomic.
We have all of the opcodes defined in a submodule called `all`, this
allows wildcard imports without bringing in the other types in the
`opcodes` module.
Use wildcard import `use crate::blockdata::opcodes::all::*` instead of
fully qualifying the path to opcodes.
`impl_array_newtype` is an internal macro, move it to a new, ever so
meaningfully named, `macros` module.
Use `#[macro_export]`, no other changes to the macro.
Currently we use the `Uint256` type to represent two proof of work
integers, namely target and difficulty (work).
It would be nice to not have a public integer type that is not fully
implemented (i.e., does not implement arithmetic etc as do integer types
in stdlib). Instead of implementing all the stdlib functions we can
instead add two new wrapper types, since these are not general purpose
integers they do not need to implement anything we do not need to use.
- Add a `pow` module.
- Put a modified version of `Uint256` to `pow`.
- Add two new wrapper types `Target` and `Difficulty`.
- Only implement methods that we use on each type.
Note this patch does not remove the original `Uint256`, that will be
done as a separate patch.
ChainHash::using_genesis_block can't be `const` if it uses a `match`
expression prior to Rust 1.46. Use an array mapping to work around this
limitation.
`ChainHash::using_genesis_block` can't be made `const` because it uses a
`match` expression, which is only valid in Rust 1.46. Add individual
constants as a workaround so that `ChainHash` can be used in `const`
contexts.
Create a directory `bitcoin` and move into it the following as is with
no code changes:
- src
- Cargo.toml
- contrib
- test_data
- examples
Then do:
- Add a workspace to the repository root directory.
- Add the newly created `bitcoin` crate to the workspace.
- Exclude `fuzz` and `embedded` crates from the workspace.
- Add a contrib/test.sh script that runs contrib/test.sh in each
sub-crate
- Fix the bitcoin/contrib/test.sh script
2022-09-13 08:44:57 +10:00
Renamed from src/blockdata/constants.rs (Browse further)
Andrew Poelstra
Tobin C. Harding
jamil.lambert
Fmt Bot
yancy
yancy
Riccardo Casatta
Martin Habovstiak
benthecarman
Antoine Riard
Jeffrey Czyz