From 10ee2acdd26a7f1298c6f6d6b7af9b469fe29b87 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 14:41:41 +0200
Subject: Merging upstream version 1.70.0+dfsg2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/gix-revision/src/spec/parse/mod.rs | 64 +++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 vendor/gix-revision/src/spec/parse/mod.rs

(limited to 'vendor/gix-revision/src/spec/parse/mod.rs')

diff --git a/vendor/gix-revision/src/spec/parse/mod.rs b/vendor/gix-revision/src/spec/parse/mod.rs
new file mode 100644
index 000000000..5a64012c6
--- /dev/null
+++ b/vendor/gix-revision/src/spec/parse/mod.rs
@@ -0,0 +1,64 @@
+use bstr::BString;
+
+use crate::spec;
+
+/// The error returned by [`spec::parse()`][crate::spec::parse()].
+#[derive(Debug, thiserror::Error)]
+#[allow(missing_docs)]
+pub enum Error {
+    #[error("'~' needs to follow an anchor, like '@~'.")]
+    MissingTildeAnchor,
+    #[error("':' needs to be followed by either '/' and regex or the path to lookup in the HEAD tree.")]
+    MissingColonSuffix,
+    #[error("':/' must be followed by a regular expression.")]
+    EmptyTopLevelRegex,
+    #[error("Need one character after '/!', typically '-', but got {:?}", .regex)]
+    UnspecifiedRegexModifier { regex: BString },
+    #[error("Cannot peel to {:?} - unknown target.", .input)]
+    InvalidObject { input: BString },
+    #[error("Could not parse time {:?} for revlog lookup.", .input)]
+    Time {
+        input: BString,
+        source: Option<gix_date::parse::Error>,
+    },
+    #[error("Sibling branches like 'upstream' or 'push' require a branch name with remote configuration, got {:?}", .name)]
+    SiblingBranchNeedsBranchName { name: BString },
+    #[error("Reflog entries require a ref name, got {:?}", .name)]
+    ReflogLookupNeedsRefName { name: BString },
+    #[error("A reference name must be followed by positive numbers in '@{{n}}', got {:?}", .nav)]
+    RefnameNeedsPositiveReflogEntries { nav: BString },
+    #[error("Negative or explicitly positive numbers are invalid here: {:?}", .input)]
+    SignedNumber { input: BString },
+    #[error("Could not parse number from {input:?}")]
+    InvalidNumber { input: BString },
+    #[error("Negative zeroes are invalid: {:?} - remove the '-'", .input)]
+    NegativeZero { input: BString },
+    #[error("The opening brace in {:?} was not matched", .input)]
+    UnclosedBracePair { input: BString },
+    #[error("Cannot set spec kind more than once. Previous value was {:?}, now it is {:?}", .prev_kind, .kind)]
+    KindSetTwice { prev_kind: spec::Kind, kind: spec::Kind },
+    #[error("The @ character is either standing alone or followed by `{{<content>}}`, got {:?}", .input)]
+    AtNeedsCurlyBrackets { input: BString },
+    #[error("A portion of the input could not be parsed: {:?}", .input)]
+    UnconsumedInput { input: BString },
+    #[error("The delegate didn't indicate success - check delegate for more information")]
+    Delegate,
+}
+
+///
+pub mod delegate;
+
+/// A delegate to be informed about parse events, with methods split into categories.
+///
+/// - **Anchors** - which revision to use as starting point for…
+/// - **Navigation** - where to go once from the initial revision
+/// - **Range** - to learn if the specification is for a single or multiple references, and how to combine them.
+pub trait Delegate: delegate::Revision + delegate::Navigate + delegate::Kind {
+    /// Called at the end of a successful parsing operation.
+    /// It can be used as a marker to finalize internal data structures.
+    ///
+    /// Note that it will not be called if there is unconsumed input.
+    fn done(&mut self);
+}
+
+pub(crate) mod function;
-- 
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