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| Events |
| <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li></ul></div></div> <!----></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Try</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/my-first-function/" class="sidebar-link">My First Function</a></li><li><a href="/docs/functions-in-python/" class="sidebar-link">Write Functions in Python</a></li><li><a href="/docs/builtin-functions/" class="sidebar-link">How to Add Built-in Functions</a></li><li><a href="/docs/azure-confidential-computing/" class="sidebar-link">Deploying Teaclave on Azure Confidential Computing Virtual Machines</a></li><li><a href="/docs/executing-wasm/" class="sidebar-link">Executing WebAssembly in Teaclave</a></li><li><a href="/docs/inference-with-tvm/" class="sidebar-link">Inference Task with TVM in Teaclave</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Design</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/threat-model/" class="sidebar-link">Threat Model</a></li><li><a href="/docs/mutual-attestation/" class="sidebar-link">Mutual Attestation: Why and How</a></li><li><a href="/docs/access-control/" class="sidebar-link">Access Control in Teaclave</a></li><li><a href="/docs/build-system/" class="sidebar-link">Build System</a></li><li><a href="/docs/service-internals/" class="sidebar-link">Teaclave Service Internals</a></li><li><a href="/docs/adding-executors/" class="sidebar-link">Adding Executors</a></li><li><a href="/docs/papers-talks/" class="sidebar-link">Papers, Talks, and Related Articles</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Contribute</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/release-guide/" class="sidebar-link">Release Guide</a></li><li><a href="/docs/development-tips/" class="sidebar-link">Development Tips</a></li><li><a href="/docs/rust-guildeline/" aria-current="page" class="active sidebar-link">Rust Development Guideline</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Codebase</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/docs/codebase/attestation/" class="sidebar-link">Attestation in Teaclave</a></li><li><a href="/docs/codebase/binder/" class="sidebar-link">Binder</a></li><li><a href="/docs/codebase/cli/" class="sidebar-link">Teaclave Command Line Tool</a></li><li><a href="/docs/codebase/common/" class="sidebar-link">Common Libraries</a></li><li><a href="/docs/codebase/config/" class="sidebar-link">Configurations in Teaclave</a></li><li><a href="/docs/codebase/crypto/" class="sidebar-link">Crypto Primitives</a></li><li><a href="/docs/codebase/dcap/" class="sidebar-link">Data Center Attestation Service</a></li><li><a href="/docs/codebase/docker/" class="sidebar-link">Teaclave Docker</a></li><li><a href="/docs/codebase/examples/" class="sidebar-link">Examples</a></li><li><a href="/docs/codebase/executor/" class="sidebar-link">Function Executors</a></li><li><a href="/docs/codebase/file-agent/" class="sidebar-link">File Agent</a></li><li><a href="/docs/codebase/function/" class="sidebar-link">Built-in Functions</a></li><li><a href="/docs/codebase/rpc/" class="sidebar-link">RPC</a></li><li><a href="/docs/codebase/runtime/" class="sidebar-link">Executor Runtime</a></li><li><a href="/docs/codebase/sdk/" class="sidebar-link">Client SDK</a></li><li><a href="/docs/codebase/services/" class="sidebar-link">Teaclave Services</a></li><li><a href="/docs/codebase/tests/" class="sidebar-link">Test Harness and Test Cases</a></li><li><a href="/docs/codebase/third-party/" class="sidebar-link">Third-Party Dependency Vendoring</a></li><li><a href="/docs/codebase/tools/" class="sidebar-link">Tools</a></li><li><a href="/docs/codebase/types/" class="sidebar-link">Types</a></li><li><a href="/docs/codebase/worker/" class="sidebar-link">Teaclave Worker</a></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="rust-development-guideline"><a href="#rust-development-guideline" class="header-anchor">#</a> Rust Development Guideline</h1> <p>This doc defines some guidelines for developing Teaclave in Rust.</p> <h2 id="style"><a href="#style" class="header-anchor">#</a> Style</h2> <p>We use <code>rustfmt</code> and <code>clippy</code> to format and lint all Rust code. Mostly, we use |
| the default configurations, but there are a couple of custom settings and lint |
| exceptions. The exceptions should be defined along with the code. Our CI will |
| check the format/lint issues and deny all warnings by default. Simply run <code>make format</code> to format all code and <code>make CLP=1</code> to lint code before submitting a PR. |
| If you still have some doubts of the <code>clippy</code> error, feel free to point out and |
| add an exception.</p> <h2 id="elegant-apis"><a href="#elegant-apis" class="header-anchor">#</a> Elegant APIs</h2> <p>Elegantly designed functions and APIs will make the project readable and |
| user-friendly. Basically, we follow naming conventions and API design patterns |
| of Rust standard library. There's no official guideline, but here are several |
| articles or docs for reference:</p> <ul><li><a href="https://rust-lang.github.io/api-guidelines/" target="_blank" rel="noopener noreferrer">Rust API guidelines</a></li> <li><a href="https://github.com/rust-unofficial/patterns" target="_blank" rel="noopener noreferrer">Rust Design Patterns</a></li> <li><a href="https://deterministic.space/elegant-apis-in-rust.html#what-makes-an-api-elegant" target="_blank" rel="noopener noreferrer">Elegant Library APIs in Rust</a></li></ul> <h2 id="unsafe-rust"><a href="#unsafe-rust" class="header-anchor">#</a> Unsafe Rust</h2> <p>Using unsafe Rust is extremely dangerous, and may break Rust's strong |
| memory-safety guarantees. Therefore, we want to keep unsafe Rust as minimal as |
| possible. Sometimes (very rare) using unsafe Rust can significantly improve |
| performance, the unsafe code should be <em>well documented</em> and <em>explain the |
| rationales</em>. For contributors and reviewers, pay attention to the unsafe code |
| and carefully check whether the pre-conditions and post-conditions still |
| hold.</p> <h2 id="error-handling"><a href="#error-handling" class="header-anchor">#</a> Error Handling</h2> <p>Using <code>unwrap</code> or <code>expect</code> to get a value from an optional type may introduce |
| runtime panic. Therefore, properly using the error handling mechanism provided |
| by Rust can make the system robust and clean. In some cases, optional value can |
| never be <code>None</code> internally, <code>unwrap</code> can be used with a comment explaining the |
| assumptions and reasons. The same rule also applies to <code>panic</code> and similar |
| functions which may cause runtime panic. One exception is to use <code>unwrap</code> and |
| <code>expect</code> in tests, while <code>expect</code> is better because it will show a message to |
| help debugging.</p> <h2 id="third-party-crates"><a href="#third-party-crates" class="header-anchor">#</a> Third-Party Crates</h2> <p>To ensure the security, stability and compatibility of upstream crates, all |
| third-party crates (especially for ported SGX-compatible crates) used in |
| Teaclave are vendored in the <code>third_party</code> directory. Please refer to the |
| <code>crates-sgx</code> and <code>crates-io</code> repo and choose specific versions of vendored |
| crates.</p></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated:</span> <span class="time">6/19/2020, 10:13:12 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev"> |
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| Apache Teaclave (incubating) is an effort undergoing incubation at The Apache |
| Software Foundation (ASF), sponsored by the Apache Incubator. |
| Incubation is required of all newly accepted projects until a further review |
| indicates that the infrastructure, communications, and decision making process |
| have stabilized in a manner consistent with other successful ASF projects. While |
| incubation status is not necessarily a reflection of the completeness or |
| stability of the code, it does indicate that the project has yet to be fully |
| endorsed by the ASF. |
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