bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/syntax/src/ast/make.rs')
-rw-r--r--crates/syntax/src/ast/make.rs35
1 files changed, 30 insertions, 5 deletions
diff --git a/crates/syntax/src/ast/make.rs b/crates/syntax/src/ast/make.rs
index d608a35eff..596f73e0b1 100644
--- a/crates/syntax/src/ast/make.rs
+++ b/crates/syntax/src/ast/make.rs
@@ -69,6 +69,9 @@ pub mod ext {
pub fn expr_todo() -> ast::Expr {
expr_from_text("todo!()")
}
+ pub fn expr_underscore() -> ast::Expr {
+ expr_from_text("_")
+ }
pub fn expr_ty_default(ty: &ast::Type) -> ast::Expr {
expr_from_text(&format!("{ty}::default()"))
}
@@ -706,7 +709,7 @@ pub fn wildcard_pat() -> ast::WildcardPat {
}
pub fn rest_pat() -> ast::RestPat {
- ast_from_text("fn f(..)")
+ ast_from_text("fn f() { let ..; }")
}
pub fn literal_pat(lit: &str) -> ast::LiteralPat {
@@ -785,8 +788,8 @@ pub fn record_pat_field(name_ref: ast::NameRef, pat: ast::Pat) -> ast::RecordPat
ast_from_text(&format!("fn f(S {{ {name_ref}: {pat} }}: ()))"))
}
-pub fn record_pat_field_shorthand(name_ref: ast::NameRef) -> ast::RecordPatField {
- ast_from_text(&format!("fn f(S {{ {name_ref} }}: ()))"))
+pub fn record_pat_field_shorthand(pat: ast::Pat) -> ast::RecordPatField {
+ ast_from_text(&format!("fn f(S {{ {pat} }}: ()))"))
}
/// Returns a `IdentPat` if the path has just one segment, a `PathPat` otherwise.
@@ -798,16 +801,38 @@ pub fn path_pat(path: ast::Path) -> ast::Pat {
}
/// Returns a `Pat` if the path has just one segment, an `OrPat` otherwise.
-pub fn or_pat(pats: impl IntoIterator<Item = ast::Pat>, leading_pipe: bool) -> ast::Pat {
+///
+/// Invariant: `pats` must be length > 1.
+pub fn or_pat(pats: impl IntoIterator<Item = ast::Pat>, leading_pipe: bool) -> ast::OrPat {
let leading_pipe = if leading_pipe { "| " } else { "" };
let pats = pats.into_iter().join(" | ");
return from_text(&format!("{leading_pipe}{pats}"));
- fn from_text(text: &str) -> ast::Pat {
+ fn from_text(text: &str) -> ast::OrPat {
ast_from_text(&format!("fn f({text}: ())"))
}
}
+pub fn box_pat(pat: ast::Pat) -> ast::BoxPat {
+ ast_from_text(&format!("fn f(box {pat}: ())"))
+}
+
+pub fn paren_pat(pat: ast::Pat) -> ast::ParenPat {
+ ast_from_text(&format!("fn f(({pat}): ())"))
+}
+
+pub fn range_pat(start: Option<ast::Pat>, end: Option<ast::Pat>) -> ast::RangePat {
+ ast_from_text(&format!(
+ "fn f({}..{}: ())",
+ start.map(|e| e.to_string()).unwrap_or_default(),
+ end.map(|e| e.to_string()).unwrap_or_default()
+ ))
+}
+
+pub fn ref_pat(pat: ast::Pat) -> ast::RefPat {
+ ast_from_text(&format!("fn f(&{pat}: ())"))
+}
+
pub fn match_arm(pat: ast::Pat, guard: Option<ast::MatchGuard>, expr: ast::Expr) -> ast::MatchArm {
return match guard {
Some(guard) => from_text(&format!("{pat} {guard} => {expr}")),