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api: Allow to have an endpoint both defined and deprecated in Matrix 1.0

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Kévin Commaille 2023-05-24 18:31:37 +02:00 committed by Kévin Commaille
parent d78c3e11f1
commit 2296f16ea0
1 changed files with 15 additions and 4 deletions
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19
crates/ruma-common/src/api/metadata.rs
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@ -168,8 +168,8 @@ impl VersionHistory {
/// - In stable_paths:
/// - matrix versions are in ascending order
/// - no matrix version is referenced twice
/// - deprecated's version comes after the latest version mentioned in stable_paths, and only if
/// any stable path is defined
/// - deprecated's version comes after the latest version mentioned in stable_paths, except for
/// version 1.0, and only if any stable path is defined
/// - removed comes after deprecated, or after the latest referenced stable_paths, like
/// deprecated
pub const fn new(
@ -268,8 +268,10 @@ impl VersionHistory {
if let Some(deprecated) = deprecated {
if let Some(prev_seen_version) = prev_seen_version {
let ord_result = prev_seen_version.const_ord(&deprecated);
if ord_result.is_eq() {
// prev_seen_version == deprecated
if !deprecated.is_legacy() && ord_result.is_eq() {
// prev_seen_version == deprecated, except for 1.0.
// It is possible that an endpoint was both made stable and deprecated in the
// legacy versions.
panic!("deprecated version is equal to latest stable path version")
} else if ord_result.is_gt() {
// prev_seen_version > deprecated
@ -648,6 +650,15 @@ impl MatrixVersion {
}
}
// Internal function to check if this version is the legacy (v1.0) version in const-fn contexts
const fn is_legacy(&self) -> bool {
let self_parts = self.into_parts();
use konst::primitive::cmp::cmp_u8;
cmp_u8(self_parts.0, 1).is_eq() && cmp_u8(self_parts.1, 0).is_eq()
}
/// Get the default [`RoomVersionId`] for this `MatrixVersion`.
pub fn default_room_version(&self) -> RoomVersionId {
match self {