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revsets: allow spaces in most places (but not after prefix operators)

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This commit is contained in:
Martin von Zweigbergk 2021-04-18 14:48:47 -07:00
parent c04f418e67
commit 2ac5d1f912
3 changed files with 33 additions and 9 deletions
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9
lib/src/revset.pest
View file

@ -14,6 +14,7 @@
symbol = @{ (ASCII_ALPHANUMERIC | "@" | "/" | ".")+ }
literal_string = { "\"" ~ (!"\"" ~ ANY)+ ~ "\"" }
whitespace = _{ " " }
parents = { ":" }
ancestors = { "*:" }
@ -35,8 +36,8 @@ function_argument = {
| expression
}
function_arguments = {
(function_argument ~ ",")* ~ function_argument
| ""
(whitespace* ~ function_argument ~ whitespace* ~ ",")* ~ whitespace* ~ function_argument ~ whitespace*
| whitespace*
}
primary = {
@ -48,9 +49,9 @@ primary = {
prefix_expression = { prefix_operator* ~ primary }
infix_expression = {
prefix_expression ~ (infix_operator ~ prefix_expression)*
whitespace* ~ prefix_expression ~ whitespace* ~ (infix_operator ~ whitespace* ~ prefix_expression ~ whitespace*)*
}
expression = {
infix_expression
whitespace* ~ infix_expression ~ whitespace*
}

2
lib/src/revset.rs
View file

@ -343,6 +343,8 @@ fn parse_function_argument_to_string(
}
pub fn parse(revset_str: &str) -> Result<RevsetExpression, RevsetParseError> {
// TODO: Return a better error message when parsing fails (such as when the user
// puts whitespace between a prefix operator and the operand)
let mut pairs: Pairs<Rule> = RevsetParser::parse(Rule::expression, revset_str).unwrap();
let first = pairs.next().unwrap();
assert!(pairs.next().is_none());

31
lib/tests/test_revset.rs
View file

@ -255,6 +255,27 @@ fn test_parse_revset() {
RevsetExpression::Symbol("@".to_string())
)))
);
assert_eq!(
parse(" *:@ "),
Ok(RevsetExpression::Ancestors(Box::new(
RevsetExpression::Symbol("@".to_string())
)))
);
assert_eq!(
parse(" description( arg1 , arg2 ) - parents( arg1 ) - all_heads( ) "),
Ok(RevsetExpression::Difference(
Box::new(RevsetExpression::Difference(
Box::new(RevsetExpression::Description {
needle: "arg1".to_string(),
base_expression: Box::new(RevsetExpression::Symbol("arg2".to_string()))
}),
Box::new(RevsetExpression::Parents(Box::new(
RevsetExpression::Symbol("arg1".to_string())
)))
)),
Box::new(RevsetExpression::AllHeads)
))
);
}
#[test]
@ -589,21 +610,21 @@ fn test_evaluate_expression_difference(use_git: bool) {
assert_eq!(
resolve_commit_ids(
mut_repo.as_repo_ref(),
&format!("*:{}-*:{}", commit4.id().hex(), commit5.id().hex())
&format!("*:{} - *:{}", commit4.id().hex(), commit5.id().hex())
),
vec![commit4.id().clone(), commit3.id().clone()]
);
assert_eq!(
resolve_commit_ids(
mut_repo.as_repo_ref(),
&format!("*:{}-*:{}", commit5.id().hex(), commit4.id().hex())
&format!("*:{} - *:{}", commit5.id().hex(), commit4.id().hex())
),
vec![commit5.id().clone()]
);
assert_eq!(
resolve_commit_ids(
mut_repo.as_repo_ref(),
&format!("*:{}-*:{}", commit4.id().hex(), commit2.id().hex())
&format!("*:{} - *:{}", commit4.id().hex(), commit2.id().hex())
),
vec![commit4.id().clone(), commit3.id().clone()]
);
@ -613,7 +634,7 @@ fn test_evaluate_expression_difference(use_git: bool) {
resolve_commit_ids(
mut_repo.as_repo_ref(),
&format!(
"*:{}-{}-{}",
"*:{} - {} - {}",
commit4.id().hex(),
commit2.id().hex(),
commit3.id().hex()
@ -631,7 +652,7 @@ fn test_evaluate_expression_difference(use_git: bool) {
resolve_commit_ids(
mut_repo.as_repo_ref(),
&format!(
"(*:{}-*:{})-(*:{}-*:{})",
"(*:{} - *:{}) - (*:{} - *:{})",
commit4.id().hex(),
commit1.id().hex(),
commit3.id().hex(),