zhenyi
45 lines
1.6 KiB
Rust
45 lines
1.6 KiB
Rust
//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
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//! Helper macro to extract and validate a revision selector.
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//!
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//! Replaces the repeated pattern of matching on ObjectSelector variants
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//! and validating revision strings before use.
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/// Extract a revision string from an optional ObjectSelector, applying
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/// validation to revision names and OID hex strings.
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///
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/// Returns "HEAD" when selector is None.
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///
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/// Usage:
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/// let revision = resolve_revision!(request.base);
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/// let revision = resolve_revision!(request.base, "main");
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#[macro_export]
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macro_rules! resolve_revision {
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($selector:expr) => {{
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match $selector.and_then(|s| s.selector) {
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Some($crate::pb::object_selector::Selector::Oid(oid)) => {
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$crate::sanitize::validate_oid_hex(&oid.hex)?;
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oid.hex
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}
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Some($crate::pb::object_selector::Selector::Revision(name)) => {
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$crate::sanitize::validate_revision(&name.revision)?;
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name.revision
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}
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None => "HEAD".into(),
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}
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}};
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($selector:expr, $default:expr) => {{
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match $selector.and_then(|s| s.selector) {
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Some($crate::pb::object_selector::Selector::Oid(oid)) => {
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$crate::sanitize::validate_oid_hex(&oid.hex)?;
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oid.hex
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}
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Some($crate::pb::object_selector::Selector::Revision(name)) => {
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$crate::sanitize::validate_revision(&name.revision)?;
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name.revision
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}
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None => ($default).into(),
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}
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}};
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}
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