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

1402 lines
47 KiB
Rust

//! Solc artifact types
use ethers_core::{abi::Abi, types::Bytes};
use colored::Colorize;
use md5::Digest;
use semver::Version;
use std::{
collections::BTreeMap,
fmt, fs,
path::{Path, PathBuf},
str::FromStr,
};
use crate::{compile::*, error::SolcIoError, remappings::Remapping, utils};
use ethers_core::abi::Address;
use serde::{de::Visitor, Deserialize, Deserializer, Serialize, Serializer};
/// An ordered list of files and their source
pub type Sources = BTreeMap<PathBuf, Source>;
pub type Contracts = BTreeMap<String, BTreeMap<String, Contract>>;
/// 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<Self, SolcIoError> {
Source::read_all_from(path.as_ref()).map(Self::with_sources)
}
/// Creates a new Compiler input with default settings and the given sources
pub fn with_sources(sources: Sources) -> Self {
Self { language: "Solidity".to_string(), sources, settings: Default::default() }
}
/// 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
}
}
impl Default for CompilerInput {
fn default() -> Self {
Self::with_sources(Default::default())
}
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Settings {
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub remappings: Vec<Remapping>,
pub optimizer: Optimizer,
#[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.
/// The first level key is the file name and the second level key is the
/// contract name. An empty contract name is used for outputs that are
/// not tied to a contract but to the whole source file like the AST.
/// A star as contract name refers to all contracts in the file.
/// Similarly, a star as a file name matches all files.
/// To select all outputs the compiler can possibly generate, use
/// "outputSelection: { "*": { "*": [ "*" ], "": [ "*" ] } }"
/// but note that this might slow down the compilation process needlessly.
///
/// The available output types are as follows:
///
/// File level (needs empty string as contract name):
/// ast - AST of all source files
///
/// Contract level (needs the contract name or "*"):
/// abi - ABI
/// devdoc - Developer documentation (natspec)
/// userdoc - User documentation (natspec)
/// metadata - Metadata
/// ir - Yul intermediate representation of the code before optimization
/// irOptimized - Intermediate representation after optimization
/// storageLayout - Slots, offsets and types of the contract's state
/// variables.
/// evm.assembly - New assembly format
/// evm.legacyAssembly - Old-style assembly format in JSON
/// evm.bytecode.functionDebugData - Debugging information at function level
/// evm.bytecode.object - Bytecode object
/// evm.bytecode.opcodes - Opcodes list
/// evm.bytecode.sourceMap - Source mapping (useful for debugging)
/// evm.bytecode.linkReferences - Link references (if unlinked object)
/// evm.bytecode.generatedSources - Sources generated by the compiler
/// evm.deployedBytecode* - Deployed bytecode (has all the options that
/// evm.bytecode has)
/// evm.deployedBytecode.immutableReferences - Map from AST ids to
/// bytecode ranges that reference immutables
/// evm.methodIdentifiers - The list of function hashes
/// evm.gasEstimates - Function gas estimates
/// ewasm.wast - Ewasm in WebAssembly S-expressions format
/// ewasm.wasm - Ewasm in WebAssembly binary format
///
/// Note that using a using `evm`, `evm.bytecode`, `ewasm`, etc. will select
/// every target part of that output. Additionally, `*` can be used as a
/// wildcard to request everything.
///
/// The default output selection is
///
/// ```json
/// {
/// "*": {
/// "*": [
/// "abi",
/// "evm.bytecode",
/// "evm.deployedBytecode",
/// "evm.methodIdentifiers"
/// ],
/// "": [
/// "ast"
/// ]
/// }
/// }
/// ```
#[serde(default)]
pub output_selection: BTreeMap<String, BTreeMap<String, Vec<String>>>,
#[serde(default, with = "display_from_str_opt", skip_serializing_if = "Option::is_none")]
pub evm_version: Option<EvmVersion>,
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub libraries: BTreeMap<String, BTreeMap<String, String>>,
}
impl Settings {
/// Default output selection for compiler output
pub fn default_output_selection() -> BTreeMap<String, BTreeMap<String, Vec<String>>> {
let mut output_selection = BTreeMap::default();
let mut output = BTreeMap::default();
output.insert(
"*".to_string(),
vec![
"abi".to_string(),
"evm.bytecode".to_string(),
"evm.deployedBytecode".to_string(),
"evm.methodIdentifiers".to_string(),
],
);
output_selection.insert("*".to_string(), output);
output_selection
}
/// Adds `ast` to output
#[must_use]
pub fn with_ast(mut self) -> Self {
let output = self.output_selection.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 {
optimizer: Default::default(),
metadata: None,
output_selection: Self::default_output_selection(),
evm_version: Some(EvmVersion::default()),
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>,
}
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) }
}
}
#[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 {
#[serde(default, rename = "useLiteralContent", skip_serializing_if = "Option::is_none")]
pub use_literal_content: Option<bool>,
#[serde(default, rename = "bytecodeHash", skip_serializing_if = "Option::is_none")]
pub bytecode_hash: Option<String>,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Metadata {
pub compiler: Compiler,
pub language: String,
pub output: Output,
pub settings: Settings,
pub sources: MetadataSources,
pub version: i64,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct MetadataSources {
#[serde(flatten)]
pub inner: BTreeMap<String, serde_json::Value>,
}
#[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 {
pub inputs: Vec<Item>,
#[serde(rename = "stateMutability")]
pub state_mutability: Option<String>,
#[serde(rename = "type")]
pub abi_type: String,
pub name: Option<String>,
pub outputs: Option<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 {
/// 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))? })
}
/// 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(utils::source_files(dir))
}
/// 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()
}
/// 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())
}
}
#[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 an compiler error
pub fn has_error(&self) -> bool {
self.errors.iter().any(|err| err.severity.is_error())
}
pub fn diagnostics<'a>(&'a self, ignored_error_codes: &'a [u64]) -> OutputDiagnostics {
OutputDiagnostics { errors: &self.errors, ignored_error_codes }
}
/// 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)
}
}
/// Helper type to implement display for solc errors
#[derive(Clone, Debug)]
pub struct OutputDiagnostics<'a> {
errors: &'a [Error],
ignored_error_codes: &'a [u64],
}
impl<'a> OutputDiagnostics<'a> {
/// Returns true if there is at least one error of high severity
pub fn has_error(&self) -> bool {
self.errors.iter().any(|err| err.severity.is_error())
}
}
impl<'a> fmt::Display for OutputDiagnostics<'a> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
if !self.has_error() {
f.write_str("Compiler run successful")?;
}
for err in self.errors {
// Do not log any ignored error codes
if let Some(error_code) = err.error_code {
if !self.ignored_error_codes.contains(&error_code) {
writeln!(f, "\n{}", err)?;
}
} else {
writeln!(f, "\n{}", err)?;
}
}
Ok(())
}
}
#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
pub struct Contract {
/// The Ethereum Contract Metadata.
/// See https://docs.soliditylang.org/en/develop/metadata.html
pub abi: Option<Abi>,
#[serde(default, skip_serializing_if = "Option::is_none", with = "json_string_opt")]
pub metadata: Option<Metadata>,
#[serde(default)]
pub userdoc: UserDoc,
#[serde(default)]
pub devdoc: DevDoc,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub ir: Option<String>,
#[serde(default, rename = "storageLayout", skip_serializing_if = "StorageLayout::is_empty")]
pub storage_layout: StorageLayout,
/// EVM-related outputs
#[serde(default, skip_serializing_if = "Option::is_none")]
pub evm: Option<Evm>,
/// Ewasm related outputs
#[serde(default, skip_serializing_if = "Option::is_none")]
pub ewasm: Option<Ewasm>,
}
/// Minimal representation of a contract's abi with bytecode
#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Default)]
pub struct CompactContract {
/// The Ethereum Contract ABI. If empty, it is represented as an empty
/// array. See https://docs.soliditylang.org/en/develop/abi-spec.html
pub abi: Option<Abi>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub bin: Option<BytecodeObject>,
#[serde(default, rename = "bin-runtime", skip_serializing_if = "Option::is_none")]
pub bin_runtime: Option<BytecodeObject>,
}
impl CompactContract {
/// Returns the contents of this type as a single tuple of abi, bytecode and deployed bytecode
pub fn into_parts(self) -> (Option<Abi>, Option<Bytes>, Option<Bytes>) {
(
self.abi,
self.bin.and_then(|bin| bin.into_bytes()),
self.bin_runtime.and_then(|bin| bin.into_bytes()),
)
}
/// Returns the individual parts of this contract.
///
/// If the values are `None`, then `Default` is returned.
pub fn into_parts_or_default(self) -> (Abi, Bytes, Bytes) {
(
self.abi.unwrap_or_default(),
self.bin.and_then(|bin| bin.into_bytes()).unwrap_or_default(),
self.bin_runtime.and_then(|bin| bin.into_bytes()).unwrap_or_default(),
)
}
}
impl From<serde_json::Value> for CompactContract {
fn from(mut val: serde_json::Value) -> Self {
if let Some(map) = val.as_object_mut() {
let abi = map.remove("abi").and_then(|val| serde_json::from_value(val).ok());
let bin = map.remove("bin").and_then(|val| serde_json::from_value(val).ok());
let bin_runtime =
map.remove("bin-runtime").and_then(|val| serde_json::from_value(val).ok());
Self { abi, bin, bin_runtime }
} else {
CompactContract::default()
}
}
}
impl From<Contract> for CompactContract {
fn from(c: Contract) -> Self {
let (bin, bin_runtime) = if let Some(evm) = c.evm {
(
Some(evm.bytecode.object),
evm.deployed_bytecode.and_then(|deployed| deployed.bytecode.map(|evm| evm.object)),
)
} else {
(None, None)
};
Self { abi: c.abi, bin, bin_runtime }
}
}
impl<'a> From<CompactContractRef<'a>> for CompactContract {
fn from(c: CompactContractRef<'a>) -> Self {
Self { abi: c.abi.cloned(), bin: c.bin.cloned(), bin_runtime: c.bin_runtime.cloned() }
}
}
/// Helper type to serialize while borrowing from `Contract`
#[derive(Copy, Clone, Debug, Serialize)]
pub struct CompactContractRef<'a> {
pub abi: Option<&'a Abi>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub bin: Option<&'a BytecodeObject>,
#[serde(default, rename = "bin-runtime", skip_serializing_if = "Option::is_none")]
pub bin_runtime: Option<&'a BytecodeObject>,
}
impl<'a> CompactContractRef<'a> {
/// Clones the referenced values and returns as tuples
pub fn into_parts(self) -> (Option<Abi>, Option<Bytes>, Option<Bytes>) {
CompactContract::from(self).into_parts()
}
/// Returns the individual parts of this contract.
///
/// If the values are `None`, then `Default` is returned.
pub fn into_parts_or_default(self) -> (Abi, Bytes, Bytes) {
CompactContract::from(self).into_parts_or_default()
}
pub fn bytecode(&self) -> Option<&Bytes> {
self.bin.as_ref().and_then(|bin| bin.as_bytes())
}
pub fn runtime_bytecode(&self) -> Option<&Bytes> {
self.bin_runtime.as_ref().and_then(|bin| bin.as_bytes())
}
}
impl<'a> From<&'a Contract> for CompactContractRef<'a> {
fn from(c: &'a Contract) -> Self {
let (bin, bin_runtime) = if let Some(ref evm) = c.evm {
(
Some(&evm.bytecode.object),
evm.deployed_bytecode
.as_ref()
.and_then(|deployed| deployed.bytecode.as_ref().map(|evm| &evm.object)),
)
} else {
(None, None)
};
Self { abi: c.abi.as_ref(), bin, bin_runtime }
}
}
#[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, 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, String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub title: 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: 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>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct Bytecode {
/// Debugging information at function level
#[serde(default, skip_serializing_if = "::std::collections::BTreeMap::is_empty")]
pub function_debug_data: BTreeMap<String, FunctionDebugData>,
/// The bytecode as a hex string.
pub object: BytecodeObject,
/// Opcodes list (string)
#[serde(default, skip_serializing_if = "Option::is_none")]
pub opcodes: Option<String>,
/// The source mapping as a string. See the source mapping definition.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub source_map: Option<String>,
/// Array of sources generated by the compiler. Currently only contains a
/// single Yul file.
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub generated_sources: Vec<GeneratedSource>,
/// If given, this is an unlinked object.
#[serde(default)]
pub link_references: BTreeMap<String, BTreeMap<String, Vec<Offsets>>>,
}
impl Bytecode {
/// Same as `Bytecode::link` but with fully qualified name (`file.sol:Math`)
pub fn link_fully_qualified(&mut self, name: impl AsRef<str>, addr: Address) -> bool {
if let Some((file, lib)) = name.as_ref().split_once(':') {
self.link(file, lib, addr)
} else {
false
}
}
/// Tries to link the bytecode object with the `file` and `library` name.
/// Replaces all library placeholders with the given address.
///
/// Returns true if the bytecode object is fully linked, false otherwise
/// This is a noop if the bytecode object is already fully linked.
pub fn link(
&mut self,
file: impl AsRef<str>,
library: impl AsRef<str>,
address: Address,
) -> bool {
if !self.object.is_unlinked() {
return true
}
let file = file.as_ref();
let library = library.as_ref();
if let Some((key, mut contracts)) = self.link_references.remove_entry(file) {
if contracts.remove(library).is_some() {
self.object.link(file, library, address);
}
if !contracts.is_empty() {
self.link_references.insert(key, contracts);
}
if self.link_references.is_empty() {
return self.object.resolve().is_some()
}
}
false
}
/// Links the bytecode object with all provided `(file, lib, addr)`
pub fn link_all<I, S, T>(&mut self, libs: I) -> bool
where
I: IntoIterator<Item = (S, T, Address)>,
S: AsRef<str>,
T: AsRef<str>,
{
for (file, lib, addr) in libs.into_iter() {
if self.link(file, lib, addr) {
return true
}
}
false
}
/// Links the bytecode object with all provided `(fully_qualified, addr)`
pub fn link_all_fully_qualified<I, S>(&mut self, libs: I) -> bool
where
I: IntoIterator<Item = (S, Address)>,
S: AsRef<str>,
{
for (name, addr) in libs.into_iter() {
if self.link_fully_qualified(name, addr) {
return true
}
}
false
}
}
/// Represents the bytecode of a contracts that might be not fully linked yet.
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
#[serde(untagged)]
pub enum BytecodeObject {
/// Fully linked bytecode object
#[serde(deserialize_with = "deserialize_bytes")]
Bytecode(Bytes),
/// Bytecode as hex string that's not fully linked yet and contains library placeholders
Unlinked(String),
}
impl BytecodeObject {
pub fn into_bytes(self) -> Option<Bytes> {
match self {
BytecodeObject::Bytecode(bytes) => Some(bytes),
BytecodeObject::Unlinked(_) => None,
}
}
pub fn as_bytes(&self) -> Option<&Bytes> {
match self {
BytecodeObject::Bytecode(bytes) => Some(bytes),
BytecodeObject::Unlinked(_) => None,
}
}
pub fn into_unlinked(self) -> Option<String> {
match self {
BytecodeObject::Bytecode(_) => None,
BytecodeObject::Unlinked(code) => Some(code),
}
}
/// Tries to resolve the unlinked string object a valid bytecode object in place
///
/// Returns the string if it is a valid
pub fn resolve(&mut self) -> Option<&Bytes> {
if let BytecodeObject::Unlinked(unlinked) = self {
if let Ok(linked) = hex::decode(unlinked) {
*self = BytecodeObject::Bytecode(linked.into());
}
}
self.as_bytes()
}
/// Link using the fully qualified name of a library
/// The fully qualified library name is the path of its source file and the library name
/// separated by `:` like `file.sol:Math`
///
/// This will replace all occurrences of the library placeholder with the given address.
///
/// See also: https://docs.soliditylang.org/en/develop/using-the-compiler.html#library-linking
pub fn link_fully_qualified(&mut self, name: impl AsRef<str>, addr: Address) -> &mut Self {
if let BytecodeObject::Unlinked(ref mut unlinked) = self {
let name = name.as_ref();
let place_holder = utils::library_hash_placeholder(name);
// the address as hex without prefix
let hex_addr = hex::encode(addr);
// the library placeholder used to be the fully qualified name of the library instead of
// the hash. This is also still supported by `solc` so we handle this as well
let fully_qualified_placeholder = utils::library_fully_qualified_placeholder(name);
*unlinked = unlinked
.replace(&format!("__{}__", fully_qualified_placeholder), &hex_addr)
.replace(&format!("__{}__", place_holder), &hex_addr)
}
self
}
/// Link using the `file` and `library` names as fully qualified name `<file>:<library>`
/// See `BytecodeObject::link_fully_qualified`
pub fn link(
&mut self,
file: impl AsRef<str>,
library: impl AsRef<str>,
addr: Address,
) -> &mut Self {
self.link_fully_qualified(format!("{}:{}", file.as_ref(), library.as_ref(),), addr)
}
/// Links the bytecode object with all provided `(file, lib, addr)`
pub fn link_all<I, S, T>(&mut self, libs: I) -> &mut Self
where
I: IntoIterator<Item = (S, T, Address)>,
S: AsRef<str>,
T: AsRef<str>,
{
for (file, lib, addr) in libs.into_iter() {
self.link(file, lib, addr);
}
self
}
/// Whether this object is still unlinked
pub fn is_unlinked(&self) -> bool {
matches!(self, BytecodeObject::Unlinked(_))
}
/// Whether the bytecode contains a matching placeholder using the qualified name
pub fn contains_fully_qualified_placeholder(&self, name: impl AsRef<str>) -> bool {
if let BytecodeObject::Unlinked(unlinked) = self {
let name = name.as_ref();
unlinked.contains(&utils::library_hash_placeholder(name)) ||
unlinked.contains(&utils::library_fully_qualified_placeholder(name))
} else {
false
}
}
/// Whether the bytecode contains a matching placeholder
pub fn contains_placeholder(&self, file: impl AsRef<str>, library: impl AsRef<str>) -> bool {
self.contains_fully_qualified_placeholder(format!("{}:{}", file.as_ref(), library.as_ref()))
}
}
// Returns a not deployable bytecode by default as "0x"
impl Default for BytecodeObject {
fn default() -> Self {
BytecodeObject::Unlinked("0x".to_string())
}
}
impl AsRef<[u8]> for BytecodeObject {
fn as_ref(&self) -> &[u8] {
match self {
BytecodeObject::Bytecode(code) => code.as_ref(),
BytecodeObject::Unlinked(code) => code.as_bytes(),
}
}
}
#[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 DeployedBytecode {
#[serde(flatten)]
pub bytecode: Option<Bytecode>,
#[serde(
default,
rename = "immutableReferences",
skip_serializing_if = "::std::collections::BTreeMap::is_empty"
)]
pub immutable_references: BTreeMap<String, Vec<Offsets>>,
}
#[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)]
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)]
#[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<SourceLocation>,
pub r#type: String,
pub component: String,
pub severity: Severity,
#[serde(default, with = "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)]
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)]
pub struct SourceLocation {
pub file: String,
pub start: i32,
pub end: i32,
pub message: Option<String>,
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct SourceFile {
pub id: u32,
pub ast: serde_json::Value,
}
mod display_from_str_opt {
use serde::{de, Deserialize, Deserializer, Serializer};
use std::{fmt, str::FromStr};
pub fn serialize<T, S>(value: &Option<T>, serializer: S) -> Result<S::Ok, S::Error>
where
T: fmt::Display,
S: Serializer,
{
if let Some(value) = value {
serializer.collect_str(value)
} else {
serializer.serialize_none()
}
}
pub fn deserialize<'de, T, D>(deserializer: D) -> Result<Option<T>, D::Error>
where
D: Deserializer<'de>,
T: FromStr,
T::Err: fmt::Display,
{
if let Some(s) = Option::<String>::deserialize(deserializer)? {
s.parse().map_err(de::Error::custom).map(Some)
} else {
Ok(None)
}
}
}
mod json_string_opt {
use serde::{
de::{self, DeserializeOwned},
ser, Deserialize, Deserializer, Serialize, Serializer,
};
pub fn serialize<T, S>(value: &Option<T>, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
T: Serialize,
{
if let Some(value) = value {
let value = serde_json::to_string(value).map_err(ser::Error::custom)?;
serializer.serialize_str(&value)
} else {
serializer.serialize_none()
}
}
pub fn deserialize<'de, T, D>(deserializer: D) -> Result<Option<T>, D::Error>
where
D: Deserializer<'de>,
T: DeserializeOwned,
{
if let Some(s) = Option::<String>::deserialize(deserializer)? {
serde_json::from_str(&s).map_err(de::Error::custom).map(Some)
} else {
Ok(None)
}
}
}
pub fn deserialize_bytes<'de, D>(d: D) -> std::result::Result<Bytes, D::Error>
where
D: Deserializer<'de>,
{
let value = String::deserialize(d)?;
if let Some(value) = value.strip_prefix("0x") {
hex::decode(value)
} else {
hex::decode(&value)
}
.map(Into::into)
.map_err(|e| serde::de::Error::custom(e.to_string()))
}
pub fn deserialize_opt_bytes<'de, D>(d: D) -> std::result::Result<Option<Bytes>, D::Error>
where
D: Deserializer<'de>,
{
let value = Option::<String>::deserialize(d)?;
if let Some(value) = value {
Ok(Some(
if let Some(value) = value.strip_prefix("0x") {
hex::decode(value)
} else {
hex::decode(&value)
}
.map_err(|e| serde::de::Error::custom(e.to_string()))?
.into(),
))
} else {
Ok(None)
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::{fs, path::PathBuf};
#[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
)
}
}
}