ethers-rs/ethers-solc/src/artifacts/mod.rs

1459 lines
51 KiB
Rust

//! Solc artifact types
use ethers_core::abi::Abi;
use colored::Colorize;
use md5::Digest;
use semver::{Version, VersionReq};
use std::{
collections::{BTreeMap, HashSet},
fmt, fs,
path::{Path, PathBuf},
str::FromStr,
};
use crate::{compile::*, error::SolcIoError, remappings::Remapping, utils};
use serde::{de::Visitor, Deserialize, Deserializer, Serialize, Serializer};
pub mod bytecode;
pub mod contract;
pub mod output_selection;
pub mod serde_helpers;
use crate::{
artifacts::output_selection::{ContractOutputSelection, OutputSelection},
filter::FilteredSources,
};
pub use bytecode::*;
pub use contract::*;
pub use serde_helpers::{deserialize_bytes, deserialize_opt_bytes};
/// Solidity files are made up of multiple `source units`, a solidity contract is such a `source
/// unit`, therefore a solidity file can contain multiple contracts: (1-N*) relationship.
///
/// This types represents this mapping as `file name -> (contract name -> T)`, where the generic is
/// intended to represent contract specific information, like [`Contract`] itself, See [`Contracts`]
pub type FileToContractsMap<T> = BTreeMap<String, BTreeMap<String, T>>;
/// file -> (contract name -> Contract)
pub type Contracts = FileToContractsMap<Contract>;
/// An ordered list of files and their source
pub type Sources = BTreeMap<PathBuf, Source>;
/// A set of different Solc installations with their version and the sources to be compiled
pub type VersionedSources = BTreeMap<Solc, (Version, Sources)>;
/// A set of different Solc installations with their version and the sources to be compiled
pub type VersionedFilteredSources = BTreeMap<Solc, (Version, FilteredSources)>;
/// Input type `solc` expects
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct CompilerInput {
pub language: String,
pub sources: Sources,
pub settings: Settings,
}
impl CompilerInput {
/// Reads all contracts found under the path
pub fn new(path: impl AsRef<Path>) -> Result<Vec<Self>, SolcIoError> {
Source::read_all_from(path.as_ref()).map(Self::with_sources)
}
/// Creates a new [CompilerInput]s with default settings and the given sources
///
/// A [CompilerInput] expects a language setting, supported by solc are solidity or yul.
/// In case the `sources` is a mix of solidity and yul files, 2 CompilerInputs are returned
pub fn with_sources(sources: Sources) -> Vec<Self> {
let mut solidity_sources = BTreeMap::new();
let mut yul_sources = BTreeMap::new();
for (path, source) in sources {
if path.extension() == Some(std::ffi::OsStr::new("yul")) {
yul_sources.insert(path, source);
} else {
solidity_sources.insert(path, source);
}
}
let mut res = Vec::new();
if !solidity_sources.is_empty() {
res.push(Self {
language: "Solidity".to_string(),
sources: solidity_sources,
settings: Default::default(),
});
}
if !yul_sources.is_empty() {
res.push(Self {
language: "Yul".to_string(),
sources: yul_sources,
settings: Default::default(),
});
}
res
}
/// This will remove/adjust values in the `CompilerInput` that are not compatible with this
/// version
pub fn sanitized(mut self, version: &Version) -> Self {
static PRE_V0_6_0: once_cell::sync::Lazy<VersionReq> =
once_cell::sync::Lazy::new(|| VersionReq::parse("<0.6.0").unwrap());
if PRE_V0_6_0.matches(version) {
if let Some(ref mut meta) = self.settings.metadata {
// introduced in <https://docs.soliditylang.org/en/v0.6.0/using-the-compiler.html#compiler-api>
// missing in <https://docs.soliditylang.org/en/v0.5.17/using-the-compiler.html#compiler-api>
meta.bytecode_hash.take();
}
}
self
}
/// Sets the settings for compilation
#[must_use]
pub fn settings(mut self, settings: Settings) -> Self {
self.settings = settings;
self
}
/// Sets the EVM version for compilation
#[must_use]
pub fn evm_version(mut self, version: EvmVersion) -> Self {
self.settings.evm_version = Some(version);
self
}
/// Sets the optimizer runs (default = 200)
#[must_use]
pub fn optimizer(mut self, runs: usize) -> Self {
self.settings.optimizer.runs(runs);
self
}
/// Normalizes the EVM version used in the settings to be up to the latest one
/// supported by the provided compiler version.
#[must_use]
pub fn normalize_evm_version(mut self, version: &Version) -> Self {
if let Some(ref mut evm_version) = self.settings.evm_version {
self.settings.evm_version = evm_version.normalize_version(version);
}
self
}
#[must_use]
pub fn with_remappings(mut self, remappings: Vec<Remapping>) -> Self {
self.settings.remappings = remappings;
self
}
/// Sets the path of the source files to `root` adjoined to the existing path
#[must_use]
pub fn join_path(mut self, root: impl AsRef<Path>) -> Self {
let root = root.as_ref();
self.sources = self.sources.into_iter().map(|(path, s)| (root.join(path), s)).collect();
self
}
/// Removes the `base` path from all source files
pub fn strip_prefix(mut self, base: impl AsRef<Path>) -> Self {
let base = base.as_ref();
self.sources = self
.sources
.into_iter()
.map(|(path, s)| (path.strip_prefix(base).map(|p| p.to_path_buf()).unwrap_or(path), s))
.collect();
self
}
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Settings {
/// Stop compilation after the given stage.
/// since 0.8.11: only "parsing" is valid here
#[serde(default, skip_serializing_if = "Option::is_none")]
pub stop_after: Option<String>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub remappings: Vec<Remapping>,
pub optimizer: Optimizer,
/// Metadata settings
#[serde(default, skip_serializing_if = "Option::is_none")]
pub metadata: Option<SettingsMetadata>,
/// This field can be used to select desired outputs based
/// on file and contract names.
/// If this field is omitted, then the compiler loads and does type
/// checking, but will not generate any outputs apart from errors.
#[serde(default)]
pub output_selection: OutputSelection,
#[serde(
default,
with = "serde_helpers::display_from_str_opt",
skip_serializing_if = "Option::is_none"
)]
pub evm_version: Option<EvmVersion>,
/// Change compilation pipeline to go through the Yul intermediate representation. This is
/// false by default.
#[serde(rename = "viaIR", default, skip_serializing_if = "Option::is_none")]
pub via_ir: Option<bool>,
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub libraries: BTreeMap<String, BTreeMap<String, String>>,
}
impl Settings {
/// Creates a new `Settings` instance with the given `output_selection`
pub fn new(output_selection: impl Into<OutputSelection>) -> Self {
Self { output_selection: output_selection.into(), ..Default::default() }
}
/// Inserts a set of `ContractOutputSelection`
pub fn push_all(&mut self, settings: impl IntoIterator<Item = ContractOutputSelection>) {
for value in settings {
self.push_output_selection(value)
}
}
/// Inserts a set of `ContractOutputSelection`
#[must_use]
pub fn with_extra_output(
mut self,
settings: impl IntoIterator<Item = ContractOutputSelection>,
) -> Self {
for value in settings {
self.push_output_selection(value)
}
self
}
/// Inserts the value for all files and contracts
///
/// ```
/// use ethers_solc::artifacts::output_selection::ContractOutputSelection;
/// use ethers_solc::artifacts::Settings;
/// let mut selection = Settings::default();
/// selection.push_output_selection(ContractOutputSelection::Metadata);
/// ```
pub fn push_output_selection(&mut self, value: impl ToString) {
self.push_contract_output_selection("*", value)
}
/// Inserts the `key` `value` pair to the `output_selection` for all files
///
/// If the `key` already exists, then the value is added to the existing list
pub fn push_contract_output_selection(
&mut self,
contracts: impl Into<String>,
value: impl ToString,
) {
let value = value.to_string();
let values = self
.output_selection
.as_mut()
.entry("*".to_string())
.or_default()
.entry(contracts.into())
.or_default();
if !values.contains(&value) {
values.push(value)
}
}
/// Sets the value for all files and contracts
pub fn set_output_selection(&mut self, values: impl IntoIterator<Item = impl ToString>) {
self.set_contract_output_selection("*", values)
}
/// Sets the `key` to the `values` pair to the `output_selection` for all files
///
/// This will replace the existing values for `key` if they're present
pub fn set_contract_output_selection(
&mut self,
key: impl Into<String>,
values: impl IntoIterator<Item = impl ToString>,
) {
self.output_selection
.as_mut()
.entry("*".to_string())
.or_default()
.insert(key.into(), values.into_iter().map(|s| s.to_string()).collect());
}
/// Sets the ``viaIR` valu
#[must_use]
pub fn set_via_ir(mut self, via_ir: bool) -> Self {
self.via_ir = Some(via_ir);
self
}
/// Enables `viaIR`
#[must_use]
pub fn with_via_ir(self) -> Self {
self.set_via_ir(true)
}
/// Adds `ast` to output
#[must_use]
pub fn with_ast(mut self) -> Self {
let output =
self.output_selection.as_mut().entry("*".to_string()).or_insert_with(BTreeMap::default);
output.insert("".to_string(), vec!["ast".to_string()]);
self
}
}
impl Default for Settings {
fn default() -> Self {
Self {
stop_after: None,
optimizer: Default::default(),
metadata: None,
output_selection: OutputSelection::default_output_selection(),
evm_version: Some(EvmVersion::default()),
via_ir: None,
libraries: Default::default(),
remappings: Default::default(),
}
.with_ast()
}
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Optimizer {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub enabled: Option<bool>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub runs: Option<usize>,
/// Switch optimizer components on or off in detail.
/// The "enabled" switch above provides two defaults which can be
/// tweaked here. If "details" is given, "enabled" can be omitted.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub details: Option<OptimizerDetails>,
}
impl Optimizer {
pub fn runs(&mut self, runs: usize) {
self.runs = Some(runs);
}
pub fn disable(&mut self) {
self.enabled.take();
}
pub fn enable(&mut self) {
self.enabled = Some(true)
}
}
impl Default for Optimizer {
fn default() -> Self {
Self { enabled: Some(false), runs: Some(200), details: None }
}
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
#[serde(rename_all = "camelCase")]
pub struct OptimizerDetails {
/// The peephole optimizer is always on if no details are given,
/// use details to switch it off.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub peephole: Option<bool>,
/// The inliner is always on if no details are given,
/// use details to switch it off.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub inliner: Option<bool>,
/// The unused jumpdest remover is always on if no details are given,
/// use details to switch it off.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub jumpdest_remover: Option<bool>,
/// Sometimes re-orders literals in commutative operations.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub order_literals: Option<bool>,
/// Removes duplicate code blocks
#[serde(default, skip_serializing_if = "Option::is_none")]
pub deduplicate: Option<bool>,
/// Common subexpression elimination, this is the most complicated step but
/// can also provide the largest gain.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub cse: Option<bool>,
/// Optimize representation of literal numbers and strings in code.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub constant_optimizer: Option<bool>,
/// The new Yul optimizer. Mostly operates on the code of ABI coder v2
/// and inline assembly.
/// It is activated together with the global optimizer setting
/// and can be deactivated here.
/// Before Solidity 0.6.0 it had to be activated through this switch.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub yul: Option<bool>,
/// Tuning options for the Yul optimizer.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub yul_details: Option<YulDetails>,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
#[serde(rename_all = "camelCase")]
pub struct YulDetails {
/// Improve allocation of stack slots for variables, can free up stack slots early.
/// Activated by default if the Yul optimizer is activated.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub stack_allocation: Option<bool>,
/// Select optimization steps to be applied.
/// Optional, the optimizer will use the default sequence if omitted.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub optimizer_steps: Option<String>,
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum EvmVersion {
Homestead,
TangerineWhistle,
SpuriousDragon,
Byzantium,
Constantinople,
Petersburg,
Istanbul,
Berlin,
London,
}
impl Default for EvmVersion {
fn default() -> Self {
Self::London
}
}
impl EvmVersion {
/// Checks against the given solidity `semver::Version`
pub fn normalize_version(self, version: &Version) -> Option<EvmVersion> {
// the EVM version flag was only added at 0.4.21
// we work our way backwards
if version >= &CONSTANTINOPLE_SOLC {
// If the Solc is at least at london, it supports all EVM versions
Some(if version >= &LONDON_SOLC {
self
// For all other cases, cap at the at-the-time highest possible
// fork
} else if version >= &BERLIN_SOLC && self >= EvmVersion::Berlin {
EvmVersion::Berlin
} else if version >= &ISTANBUL_SOLC && self >= EvmVersion::Istanbul {
EvmVersion::Istanbul
} else if version >= &PETERSBURG_SOLC && self >= EvmVersion::Petersburg {
EvmVersion::Petersburg
} else if self >= EvmVersion::Constantinople {
EvmVersion::Constantinople
} else {
self
})
} else {
None
}
}
}
impl fmt::Display for EvmVersion {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let string = match self {
EvmVersion::Homestead => "homestead",
EvmVersion::TangerineWhistle => "tangerineWhistle",
EvmVersion::SpuriousDragon => "spuriousDragon",
EvmVersion::Constantinople => "constantinople",
EvmVersion::Petersburg => "petersburg",
EvmVersion::Istanbul => "istanbul",
EvmVersion::Berlin => "berlin",
EvmVersion::London => "london",
EvmVersion::Byzantium => "byzantium",
};
write!(f, "{}", string)
}
}
impl FromStr for EvmVersion {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"homestead" => Ok(EvmVersion::Homestead),
"tangerineWhistle" => Ok(EvmVersion::TangerineWhistle),
"spuriousDragon" => Ok(EvmVersion::SpuriousDragon),
"constantinople" => Ok(EvmVersion::Constantinople),
"petersburg" => Ok(EvmVersion::Petersburg),
"istanbul" => Ok(EvmVersion::Istanbul),
"berlin" => Ok(EvmVersion::Berlin),
"london" => Ok(EvmVersion::London),
"byzantium" => Ok(EvmVersion::Byzantium),
s => Err(format!("Unknown evm version: {}", s)),
}
}
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct SettingsMetadata {
/// Use only literal content and not URLs (false by default)
#[serde(default, rename = "useLiteralContent", skip_serializing_if = "Option::is_none")]
pub use_literal_content: Option<bool>,
/// Use the given hash method for the metadata hash that is appended to the bytecode.
/// The metadata hash can be removed from the bytecode via option "none".
/// The other options are "ipfs" and "bzzr1".
/// If the option is omitted, "ipfs" is used by default.
#[serde(
default,
rename = "bytecodeHash",
skip_serializing_if = "Option::is_none",
with = "serde_helpers::display_from_str_opt"
)]
pub bytecode_hash: Option<BytecodeHash>,
}
impl From<BytecodeHash> for SettingsMetadata {
fn from(hash: BytecodeHash) -> Self {
Self { use_literal_content: None, bytecode_hash: Some(hash) }
}
}
/// Determines the hash method for the metadata hash that is appended to the bytecode.
///
/// Solc's default is `Ipfs`, see <https://docs.soliditylang.org/en/latest/using-the-compiler.html#compiler-api>.
#[derive(Clone, Debug, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum BytecodeHash {
Ipfs,
None,
Bzzr1,
}
impl Default for BytecodeHash {
fn default() -> Self {
BytecodeHash::Ipfs
}
}
impl FromStr for BytecodeHash {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"none" => Ok(BytecodeHash::None),
"ipfs" => Ok(BytecodeHash::Ipfs),
"bzzr1" => Ok(BytecodeHash::Bzzr1),
s => Err(format!("Unknown bytecode hash: {}", s)),
}
}
}
impl fmt::Display for BytecodeHash {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let s = match self {
BytecodeHash::Ipfs => "ipfs",
BytecodeHash::None => "none",
BytecodeHash::Bzzr1 => "bzzr1",
};
f.write_str(s)
}
}
/// Bindings for [`solc` contract metadata](https://docs.soliditylang.org/en/latest/metadata.html)
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Metadata {
pub compiler: Compiler,
pub language: String,
pub output: Output,
pub settings: MetadataSettings,
pub sources: MetadataSources,
pub version: i64,
}
/// Compiler settings
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct MetadataSettings {
/// Required for Solidity: File and name of the contract or library this metadata is created
/// for.
#[serde(default, rename = "compilationTarget")]
pub compilation_target: BTreeMap<String, String>,
#[serde(flatten)]
pub inner: Settings,
}
/// Compilation source files/source units, keys are file names
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct MetadataSources {
#[serde(flatten)]
pub inner: BTreeMap<String, MetadataSource>,
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct MetadataSource {
/// Required: keccak256 hash of the source file
pub keccak256: String,
/// Required (unless "content" is used, see below): Sorted URL(s)
/// to the source file, protocol is more or less arbitrary, but a
/// Swarm URL is recommended
#[serde(default)]
pub urls: Vec<String>,
/// Required (unless "url" is used): literal contents of the source file
#[serde(default, skip_serializing_if = "Option::is_none")]
pub content: Option<String>,
/// Optional: SPDX license identifier as given in the source file
pub license: Option<String>,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Compiler {
pub version: String,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Output {
pub abi: Vec<SolcAbi>,
pub devdoc: Option<Doc>,
pub userdoc: Option<Doc>,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct SolcAbi {
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub inputs: Vec<Item>,
#[serde(rename = "stateMutability")]
pub state_mutability: Option<String>,
#[serde(rename = "type")]
pub abi_type: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub name: Option<String>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub outputs: Vec<Item>,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Item {
#[serde(rename = "internalType")]
pub internal_type: String,
pub name: String,
#[serde(rename = "type")]
pub put_type: String,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Doc {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub kind: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub methods: Option<Libraries>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub version: Option<u32>,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
pub struct Libraries {
#[serde(flatten)]
pub libs: BTreeMap<String, serde_json::Value>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct Source {
pub content: String,
}
impl Source {
/// this is a heuristically measured threshold at which we can generally expect a speedup by
/// using rayon's `par_iter`, See `Self::read_all_files`
pub const NUM_READ_PAR: usize = 8;
/// Reads the file content
pub fn read(file: impl AsRef<Path>) -> Result<Self, SolcIoError> {
let file = file.as_ref();
Ok(Self { content: fs::read_to_string(file).map_err(|err| SolcIoError::new(err, file))? })
}
/// Recursively finds all source files under the given dir path and reads them all
pub fn read_all_from(dir: impl AsRef<Path>) -> Result<Sources, SolcIoError> {
Self::read_all_files(utils::source_files(dir))
}
/// Reads all source files of the given vec
///
/// Depending on the len of the vec it will try to read the files in parallel
pub fn read_all_files(files: Vec<PathBuf>) -> Result<Sources, SolcIoError> {
use rayon::prelude::*;
if files.len() < Self::NUM_READ_PAR {
Self::read_all(files)
} else {
files
.par_iter()
.map(Into::into)
.map(|file| Self::read(&file).map(|source| (file, source)))
.collect()
}
}
/// Reads all files
pub fn read_all<T, I>(files: I) -> Result<Sources, SolcIoError>
where
I: IntoIterator<Item = T>,
T: Into<PathBuf>,
{
files
.into_iter()
.map(Into::into)
.map(|file| Self::read(&file).map(|source| (file, source)))
.collect()
}
/// Parallelized version of `Self::read_all` that reads all files using a parallel iterator
///
/// NOTE: this is only expected to be faster than `Self::read_all` if the given iterator
/// contains at least several paths. see also `Self::read_all_files`.
pub fn par_read_all<T, I>(files: I) -> Result<Sources, SolcIoError>
where
I: IntoIterator<Item = T>,
<I as IntoIterator>::IntoIter: Send,
T: Into<PathBuf> + Send,
{
use rayon::{iter::ParallelBridge, prelude::ParallelIterator};
files
.into_iter()
.par_bridge()
.map(Into::into)
.map(|file| Self::read(&file).map(|source| (file, source)))
.collect()
}
/// Generate a non-cryptographically secure checksum of the file's content
pub fn content_hash(&self) -> String {
let mut hasher = md5::Md5::new();
hasher.update(&self.content);
let result = hasher.finalize();
hex::encode(result)
}
/// Returns all import statements of the file
pub fn parse_imports(&self) -> Vec<&str> {
utils::find_import_paths(self.as_ref()).map(|m| m.as_str()).collect()
}
}
#[cfg(feature = "async")]
impl Source {
/// async version of `Self::read`
pub async fn async_read(file: impl AsRef<Path>) -> Result<Self, SolcIoError> {
let file = file.as_ref();
Ok(Self {
content: tokio::fs::read_to_string(file)
.await
.map_err(|err| SolcIoError::new(err, file))?,
})
}
/// Finds all source files under the given dir path and reads them all
pub async fn async_read_all_from(dir: impl AsRef<Path>) -> Result<Sources, SolcIoError> {
Self::async_read_all(utils::source_files(dir.as_ref())).await
}
/// async version of `Self::read_all`
pub async fn async_read_all<T, I>(files: I) -> Result<Sources, SolcIoError>
where
I: IntoIterator<Item = T>,
T: Into<PathBuf>,
{
futures_util::future::join_all(
files
.into_iter()
.map(Into::into)
.map(|file| async { Self::async_read(&file).await.map(|source| (file, source)) }),
)
.await
.into_iter()
.collect()
}
}
impl AsRef<str> for Source {
fn as_ref(&self) -> &str {
&self.content
}
}
/// Output type `solc` produces
#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Default)]
pub struct CompilerOutput {
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub errors: Vec<Error>,
#[serde(default)]
pub sources: BTreeMap<String, SourceFile>,
#[serde(default)]
pub contracts: Contracts,
}
impl CompilerOutput {
/// Whether the output contains a compiler error
pub fn has_error(&self) -> bool {
self.errors.iter().any(|err| err.severity.is_error())
}
/// Whether the output contains a compiler warning
pub fn has_warning(&self, ignored_error_codes: &[u64]) -> bool {
self.errors.iter().any(|err| {
if err.severity.is_warning() {
err.error_code.as_ref().map_or(false, |code| !ignored_error_codes.contains(code))
} else {
false
}
})
}
/// Finds the _first_ contract with the given name
pub fn find(&self, contract: impl AsRef<str>) -> Option<CompactContractRef> {
let contract_name = contract.as_ref();
self.contracts_iter().find_map(|(name, contract)| {
(name == contract_name).then(|| CompactContractRef::from(contract))
})
}
/// Finds the first contract with the given name and removes it from the set
pub fn remove(&mut self, contract: impl AsRef<str>) -> Option<Contract> {
let contract_name = contract.as_ref();
self.contracts.values_mut().find_map(|c| c.remove(contract_name))
}
/// Iterate over all contracts and their names
pub fn contracts_iter(&self) -> impl Iterator<Item = (&String, &Contract)> {
self.contracts.values().flatten()
}
/// Iterate over all contracts and their names
pub fn contracts_into_iter(self) -> impl Iterator<Item = (String, Contract)> {
self.contracts.into_values().flatten()
}
/// Given the contract file's path and the contract's name, tries to return the contract's
/// bytecode, runtime bytecode, and abi
pub fn get(&self, path: &str, contract: &str) -> Option<CompactContractRef> {
self.contracts
.get(path)
.and_then(|contracts| contracts.get(contract))
.map(CompactContractRef::from)
}
/// Returns the output's source files and contracts separately, wrapped in helper types that
/// provide several helper methods
pub fn split(self) -> (SourceFiles, OutputContracts) {
(SourceFiles(self.sources), OutputContracts(self.contracts))
}
/// Retains only those files the given iterator yields
///
/// In other words, removes all contracts for files not included in the iterator
pub fn retain_files<'a, I>(&mut self, files: I)
where
I: IntoIterator<Item = &'a str>,
{
// Note: use `to_lowercase` here because solc not necessarily emits the exact file name,
// e.g. `src/utils/upgradeProxy.sol` is emitted as `src/utils/UpgradeProxy.sol`
let files: HashSet<_> = files.into_iter().map(|s| s.to_lowercase()).collect();
self.contracts.retain(|f, _| files.contains(f.to_lowercase().as_str()));
self.sources.retain(|f, _| files.contains(f.to_lowercase().as_str()));
self.errors.retain(|err| {
err.source_location
.as_ref()
.map(|s| files.contains(s.file.to_lowercase().as_str()))
.unwrap_or(true)
});
}
pub fn merge(&mut self, other: CompilerOutput) {
self.errors.extend(other.errors);
self.contracts.extend(other.contracts);
self.sources.extend(other.sources);
}
}
/// A wrapper helper type for the `Contracts` type alias
#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
pub struct OutputContracts(pub Contracts);
impl OutputContracts {
/// Returns an iterator over all contracts and their source names.
pub fn into_contracts(self) -> impl Iterator<Item = (String, Contract)> {
self.0.into_values().flatten()
}
/// Iterate over all contracts and their names
pub fn contracts_iter(&self) -> impl Iterator<Item = (&String, &Contract)> {
self.0.values().flatten()
}
/// Finds the _first_ contract with the given name
pub fn find(&self, contract: impl AsRef<str>) -> Option<CompactContractRef> {
let contract_name = contract.as_ref();
self.contracts_iter().find_map(|(name, contract)| {
(name == contract_name).then(|| CompactContractRef::from(contract))
})
}
/// Finds the first contract with the given name and removes it from the set
pub fn remove(&mut self, contract: impl AsRef<str>) -> Option<Contract> {
let contract_name = contract.as_ref();
self.0.values_mut().find_map(|c| c.remove(contract_name))
}
}
/// A helper type that ensures lossless (de)serialisation unlike [`ethers_core::abi::Abi`] which
/// omits some information of (nested) components in a serde roundtrip. This is a problem for
/// abienconderv2 structs because [`ethers_core::abi::Contract`]'s representation of those are
/// [`ethers_core::abi::Param`] and the `kind` field of type [`ethers_core::abi::ParamType`] does
/// not support deeply nested components as it's the case for structs. This is not easily fixable in
/// ethabi as it would require a redesign of the overall `Param` and `ParamType` types. Instead,
/// this type keeps a copy of the [`serde_json::Value`] when deserialized from the `solc` json
/// compiler output and uses it to serialize the `abi` without loss.
#[derive(Clone, Debug, PartialEq, Default)]
pub struct LosslessAbi {
/// The complete abi as json value
pub abi_value: serde_json::Value,
/// The deserialised version of `abi_value`
pub abi: Abi,
}
impl From<LosslessAbi> for Abi {
fn from(abi: LosslessAbi) -> Self {
abi.abi
}
}
impl Serialize for LosslessAbi {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.abi_value.serialize(serializer)
}
}
impl<'de> Deserialize<'de> for LosslessAbi {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
let abi_value = serde_json::Value::deserialize(deserializer)?;
let abi = serde_json::from_value(abi_value.clone()).map_err(serde::de::Error::custom)?;
Ok(Self { abi_value, abi })
}
}
#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
pub struct UserDoc {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub version: Option<u32>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub kind: Option<String>,
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub methods: BTreeMap<String, BTreeMap<String, String>>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub notice: Option<String>,
}
#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
pub struct DevDoc {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub version: Option<u32>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub kind: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub author: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub details: Option<String>,
#[serde(default, rename = "custom:experimental", skip_serializing_if = "Option::is_none")]
pub custom_experimental: Option<String>,
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub methods: BTreeMap<String, MethodDoc>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub title: Option<String>,
}
#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
pub struct MethodDoc {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub details: Option<String>,
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub params: BTreeMap<String, String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub r#return: Option<String>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct Evm {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub assembly: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub legacy_assembly: Option<serde_json::Value>,
pub bytecode: Option<Bytecode>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub deployed_bytecode: Option<DeployedBytecode>,
/// The list of function hashes
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub method_identifiers: BTreeMap<String, String>,
/// Function gas estimates
#[serde(default, skip_serializing_if = "Option::is_none")]
pub gas_estimates: Option<GasEstimates>,
}
impl Evm {
/// Crate internal helper do transform the underlying bytecode artifacts into a more convenient
/// structure
pub(crate) fn into_compact(self) -> CompactEvm {
let Evm {
assembly,
legacy_assembly,
bytecode,
deployed_bytecode,
method_identifiers,
gas_estimates,
} = self;
let (bytecode, deployed_bytecode) = match (bytecode, deployed_bytecode) {
(Some(bcode), Some(dbcode)) => (Some(bcode.into()), Some(dbcode.into())),
(None, Some(dbcode)) => (None, Some(dbcode.into())),
(Some(bcode), None) => (Some(bcode.into()), None),
(None, None) => (None, None),
};
CompactEvm {
assembly,
legacy_assembly,
bytecode,
deployed_bytecode,
method_identifiers,
gas_estimates,
}
}
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
#[serde(rename_all = "camelCase")]
pub(crate) struct CompactEvm {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub assembly: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub legacy_assembly: Option<serde_json::Value>,
pub bytecode: Option<CompactBytecode>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub deployed_bytecode: Option<CompactDeployedBytecode>,
/// The list of function hashes
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub method_identifiers: BTreeMap<String, String>,
/// Function gas estimates
#[serde(default, skip_serializing_if = "Option::is_none")]
pub gas_estimates: Option<GasEstimates>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct FunctionDebugData {
pub entry_point: Option<u32>,
pub id: Option<u32>,
pub parameter_slots: Option<u32>,
pub return_slots: Option<u32>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct GeneratedSource {
pub ast: serde_json::Value,
pub contents: String,
pub id: u32,
pub language: String,
pub name: String,
}
/// Byte offsets into the bytecode.
/// Linking replaces the 20 bytes located there.
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct Offsets {
pub start: u32,
pub length: u32,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct GasEstimates {
pub creation: Creation,
#[serde(default)]
pub external: BTreeMap<String, String>,
#[serde(default)]
pub internal: BTreeMap<String, String>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct Creation {
pub code_deposit_cost: String,
pub execution_cost: String,
pub total_cost: String,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct Ewasm {
pub wast: String,
pub wasm: String,
}
#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
pub struct StorageLayout {
pub storage: Vec<Storage>,
#[serde(default, deserialize_with = "serde_helpers::default_for_null")]
pub types: BTreeMap<String, StorageType>,
}
impl StorageLayout {
fn is_empty(&self) -> bool {
self.storage.is_empty() && self.types.is_empty()
}
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct Storage {
#[serde(rename = "astId")]
pub ast_id: u64,
pub contract: String,
pub label: String,
pub offset: i64,
pub slot: String,
#[serde(rename = "type")]
pub storage_type: String,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct StorageType {
pub encoding: String,
pub label: String,
#[serde(rename = "numberOfBytes")]
pub number_of_bytes: String,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Hash)]
#[serde(rename_all = "camelCase")]
pub struct Error {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub source_location: Option<SourceLocation>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub secondary_source_locations: Vec<SecondarySourceLocation>,
pub r#type: String,
pub component: String,
pub severity: Severity,
#[serde(default, with = "serde_helpers::display_from_str_opt")]
pub error_code: Option<u64>,
pub message: String,
pub formatted_message: Option<String>,
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
if let Some(msg) = &self.formatted_message {
match self.severity {
Severity::Error => msg.as_str().red().fmt(f),
Severity::Warning | Severity::Info => msg.as_str().yellow().fmt(f),
}
} else {
self.severity.fmt(f)?;
writeln!(f, ": {}", self.message)
}
}
}
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
pub enum Severity {
Error,
Warning,
Info,
}
impl fmt::Display for Severity {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Severity::Error => f.write_str(&"Error".red()),
Severity::Warning => f.write_str(&"Warning".yellow()),
Severity::Info => f.write_str("Info"),
}
}
}
impl Severity {
pub fn is_error(&self) -> bool {
matches!(self, Severity::Error)
}
pub fn is_warning(&self) -> bool {
matches!(self, Severity::Warning)
}
pub fn is_info(&self) -> bool {
matches!(self, Severity::Info)
}
}
impl FromStr for Severity {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"error" => Ok(Severity::Error),
"warning" => Ok(Severity::Warning),
"info" => Ok(Severity::Info),
s => Err(format!("Invalid severity: {}", s)),
}
}
}
impl Serialize for Severity {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self {
Severity::Error => serializer.serialize_str("error"),
Severity::Warning => serializer.serialize_str("warning"),
Severity::Info => serializer.serialize_str("info"),
}
}
}
impl<'de> Deserialize<'de> for Severity {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
struct SeverityVisitor;
impl<'de> Visitor<'de> for SeverityVisitor {
type Value = Severity;
fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(formatter, "severity string")
}
fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
value.parse().map_err(serde::de::Error::custom)
}
}
deserializer.deserialize_str(SeverityVisitor)
}
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Hash)]
pub struct SourceLocation {
pub file: String,
pub start: i32,
pub end: i32,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Hash)]
pub struct SecondarySourceLocation {
pub file: Option<String>,
pub start: Option<i32>,
pub end: Option<i32>,
pub message: Option<String>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct SourceFile {
pub id: u32,
#[serde(default)]
pub ast: serde_json::Value,
}
/// A wrapper type for a list of source files
/// `path -> SourceFile`
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct SourceFiles(pub BTreeMap<String, SourceFile>);
impl SourceFiles {
/// Returns an iterator over the source files' ids and path
///
/// ```
/// use std::collections::BTreeMap;
/// use ethers_solc::artifacts::SourceFiles;
/// # fn demo(files: SourceFiles) {
/// let sources: BTreeMap<u32,String> = files.into_ids().collect();
/// # }
/// ```
pub fn into_ids(self) -> impl Iterator<Item = (u32, String)> {
self.0.into_iter().map(|(k, v)| (v.id, k))
}
/// Returns an iterator over the source files' paths and ids
///
/// ```
/// use std::collections::BTreeMap;
/// use ethers_solc::artifacts::SourceFiles;
/// # fn demo(files: SourceFiles) {
/// let sources :BTreeMap<String, u32> = files.into_paths().collect();
/// # }
/// ```
pub fn into_paths(self) -> impl Iterator<Item = (String, u32)> {
self.0.into_iter().map(|(k, v)| (k, v.id))
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::AggregatedCompilerOutput;
use ethers_core::types::Address;
use std::{fs, path::PathBuf};
#[test]
fn can_parse_declaration_error() {
let s = r#"{
"errors": [
{
"component": "general",
"errorCode": "7576",
"formattedMessage": "DeclarationError: Undeclared identifier. Did you mean \"revert\"?\n --> /Users/src/utils/UpgradeProxy.sol:35:17:\n |\n35 | refert(\"Transparent ERC1967 proxies do not have upgradeable implementations\");\n | ^^^^^^\n\n",
"message": "Undeclared identifier. Did you mean \"revert\"?",
"severity": "error",
"sourceLocation": {
"end": 1623,
"file": "/Users/src/utils/UpgradeProxy.sol",
"start": 1617
},
"type": "DeclarationError"
}
],
"sources": { }
}"#;
let out: CompilerOutput = serde_json::from_str(s).unwrap();
assert_eq!(out.errors.len(), 1);
let mut aggregated = AggregatedCompilerOutput::default();
aggregated.extend("0.8.12".parse().unwrap(), out);
assert!(!aggregated.is_unchanged());
}
#[test]
fn can_link_bytecode() {
// test cases taken from <https://github.com/ethereum/solc-js/blob/master/test/linker.js>
#[derive(Serialize, Deserialize)]
struct Mockject {
object: BytecodeObject,
}
fn parse_bytecode(bytecode: &str) -> BytecodeObject {
let object: Mockject =
serde_json::from_value(serde_json::json!({ "object": bytecode })).unwrap();
object.object
}
let bytecode = "6060604052341561000f57600080fd5b60f48061001d6000396000f300606060405260043610603e5763ffffffff7c010000000000000000000000000000000000000000000000000000000060003504166326121ff081146043575b600080fd5b3415604d57600080fd5b60536055565b005b73__lib2.sol:L____________________________6326121ff06040518163ffffffff167c010000000000000000000000000000000000000000000000000000000002815260040160006040518083038186803b151560b357600080fd5b6102c65a03f4151560c357600080fd5b5050505600a165627a7a723058207979b30bd4a07c77b02774a511f2a1dd04d7e5d65b5c2735b5fc96ad61d43ae40029";
let mut object = parse_bytecode(bytecode);
assert!(object.is_unlinked());
assert!(object.contains_placeholder("lib2.sol", "L"));
assert!(object.contains_fully_qualified_placeholder("lib2.sol:L"));
assert!(object.link("lib2.sol", "L", Address::random()).resolve().is_some());
assert!(!object.is_unlinked());
let mut code = Bytecode {
function_debug_data: Default::default(),
object: parse_bytecode(bytecode),
opcodes: None,
source_map: None,
generated_sources: vec![],
link_references: BTreeMap::from([(
"lib2.sol".to_string(),
BTreeMap::from([("L".to_string(), vec![])]),
)]),
};
assert!(!code.link("lib2.sol", "Y", Address::random()));
assert!(code.link("lib2.sol", "L", Address::random()));
assert!(code.link("lib2.sol", "L", Address::random()));
let hashed_placeholder = "6060604052341561000f57600080fd5b60f48061001d6000396000f300606060405260043610603e5763ffffffff7c010000000000000000000000000000000000000000000000000000000060003504166326121ff081146043575b600080fd5b3415604d57600080fd5b60536055565b005b73__$cb901161e812ceb78cfe30ca65050c4337$__6326121ff06040518163ffffffff167c010000000000000000000000000000000000000000000000000000000002815260040160006040518083038186803b151560b357600080fd5b6102c65a03f4151560c357600080fd5b5050505600a165627a7a723058207979b30bd4a07c77b02774a511f2a1dd04d7e5d65b5c2735b5fc96ad61d43ae40029";
let mut object = parse_bytecode(hashed_placeholder);
assert!(object.is_unlinked());
assert!(object.contains_placeholder("lib2.sol", "L"));
assert!(object.contains_fully_qualified_placeholder("lib2.sol:L"));
assert!(object.link("lib2.sol", "L", Address::default()).resolve().is_some());
assert!(!object.is_unlinked());
}
#[test]
fn can_parse_compiler_output() {
let mut dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
dir.push("test-data/out");
for path in fs::read_dir(dir).unwrap() {
let path = path.unwrap().path();
let compiler_output = fs::read_to_string(&path).unwrap();
serde_json::from_str::<CompilerOutput>(&compiler_output).unwrap_or_else(|err| {
panic!("Failed to read compiler output of {} {}", path.display(), err)
});
}
}
#[test]
fn can_parse_compiler_input() {
let mut dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
dir.push("test-data/in");
for path in fs::read_dir(dir).unwrap() {
let path = path.unwrap().path();
let compiler_output = fs::read_to_string(&path).unwrap();
serde_json::from_str::<CompilerInput>(&compiler_output).unwrap_or_else(|err| {
panic!("Failed to read compiler output of {} {}", path.display(), err)
});
}
}
#[test]
fn test_evm_version_normalization() {
for (solc_version, evm_version, expected) in &[
// Ensure 0.4.21 it always returns None
("0.4.20", EvmVersion::Homestead, None),
// Constantinople clipping
("0.4.21", EvmVersion::Homestead, Some(EvmVersion::Homestead)),
("0.4.21", EvmVersion::Constantinople, Some(EvmVersion::Constantinople)),
("0.4.21", EvmVersion::London, Some(EvmVersion::Constantinople)),
// Petersburg
("0.5.5", EvmVersion::Homestead, Some(EvmVersion::Homestead)),
("0.5.5", EvmVersion::Petersburg, Some(EvmVersion::Petersburg)),
("0.5.5", EvmVersion::London, Some(EvmVersion::Petersburg)),
// Istanbul
("0.5.14", EvmVersion::Homestead, Some(EvmVersion::Homestead)),
("0.5.14", EvmVersion::Istanbul, Some(EvmVersion::Istanbul)),
("0.5.14", EvmVersion::London, Some(EvmVersion::Istanbul)),
// Berlin
("0.8.5", EvmVersion::Homestead, Some(EvmVersion::Homestead)),
("0.8.5", EvmVersion::Berlin, Some(EvmVersion::Berlin)),
("0.8.5", EvmVersion::London, Some(EvmVersion::Berlin)),
// London
("0.8.7", EvmVersion::Homestead, Some(EvmVersion::Homestead)),
("0.8.7", EvmVersion::London, Some(EvmVersion::London)),
("0.8.7", EvmVersion::London, Some(EvmVersion::London)),
] {
assert_eq!(
&evm_version.normalize_version(&Version::from_str(solc_version).unwrap()),
expected
)
}
}
#[test]
fn can_sanitize_byte_code_hash() {
let version: Version = "0.6.0".parse().unwrap();
let settings = Settings { metadata: Some(BytecodeHash::Ipfs.into()), ..Default::default() };
let input = CompilerInput {
language: "Solidity".to_string(),
sources: Default::default(),
settings,
};
let i = input.clone().sanitized(&version);
assert_eq!(i.settings.metadata.unwrap().bytecode_hash, Some(BytecodeHash::Ipfs));
let version: Version = "0.5.17".parse().unwrap();
let i = input.sanitized(&version);
assert!(i.settings.metadata.unwrap().bytecode_hash.is_none());
}
}