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revset: extract symbol parsing and resolution helper

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These helpers will be used by name@remote handling.
This commit is contained in:
Yuya Nishihara 2023-08-25 09:33:29 +09:00
parent 81dda498e5
commit 8c2baafe5c
1 changed files with 23 additions and 18 deletions
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41
lib/src/revset.rs
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@ -918,21 +918,25 @@ fn parse_symbol_rule(
Ok(RevsetExpression::symbol(name.to_owned()))
}
}
Rule::literal_string => Ok(RevsetExpression::symbol(
first
.as_str()
.strip_prefix('"')
.unwrap()
.strip_suffix('"')
.unwrap()
.to_owned(),
)),
Rule::literal_string => parse_string_literal(first).map(RevsetExpression::symbol),
_ => {
panic!("unexpected symbol parse rule: {:?}", first.as_str());
}
}
}
// TODO: Add support for \-escape syntax
fn parse_string_literal(pair: Pair<Rule>) -> Result<String, RevsetParseError> {
assert_eq!(pair.as_rule(), Rule::literal_string);
Ok(pair
.as_str()
.strip_prefix('"')
.unwrap()
.strip_suffix('"')
.unwrap()
.to_owned())
}
fn parse_function_expression(
name_pair: Pair<Rule>,
arguments_pair: Pair<Rule>,
@ -1884,6 +1888,15 @@ fn collect_branch_symbols(repo: &dyn Repo, include_synced_remotes: bool) -> Vec<
.collect()
}
fn make_no_such_symbol_error(repo: &dyn Repo, name: impl Into<String>) -> RevsetResolutionError {
let name = name.into();
// TODO: include tags?
let mut branch_names = collect_branch_symbols(repo, name.contains('@'));
branch_names.sort_unstable();
let candidates = collect_similar(&name, &branch_names);
RevsetResolutionError::NoSuchRevision { name, candidates }
}
fn resolve_full_commit_id(
repo: &dyn Repo,
symbol: &str,
@ -2021,15 +2034,7 @@ impl SymbolResolver for DefaultSymbolResolver<'_> {
}
}
Err(RevsetResolutionError::NoSuchRevision {
name: symbol.to_owned(),
candidates: {
// TODO: include tags?
let mut branch_names = collect_branch_symbols(self.repo, symbol.contains('@'));
branch_names.sort_unstable();
collect_similar(symbol, &branch_names)
},
})
Err(make_no_such_symbol_error(self.repo, symbol))
}
}
}