bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-def/src/hir.rs')
-rw-r--r--crates/hir-def/src/hir.rs67
1 files changed, 67 insertions, 0 deletions
diff --git a/crates/hir-def/src/hir.rs b/crates/hir-def/src/hir.rs
index e70cd2cd6c..66eade2245 100644
--- a/crates/hir-def/src/hir.rs
+++ b/crates/hir-def/src/hir.rs
@@ -322,6 +322,72 @@ pub enum Expr {
InlineAsm(InlineAsm),
}
+impl Expr {
+ pub fn precedence(&self) -> ast::prec::ExprPrecedence {
+ use ast::prec::ExprPrecedence;
+
+ match self {
+ Expr::Array(_)
+ | Expr::InlineAsm(_)
+ | Expr::Block { .. }
+ | Expr::Unsafe { .. }
+ | Expr::Const(_)
+ | Expr::Async { .. }
+ | Expr::If { .. }
+ | Expr::Literal(_)
+ | Expr::Loop { .. }
+ | Expr::Match { .. }
+ | Expr::Missing
+ | Expr::Path(_)
+ | Expr::RecordLit { .. }
+ | Expr::Tuple { .. }
+ | Expr::OffsetOf(_)
+ | Expr::Underscore => ExprPrecedence::Unambiguous,
+
+ Expr::Await { .. }
+ | Expr::Call { .. }
+ | Expr::Field { .. }
+ | Expr::Index { .. }
+ | Expr::MethodCall { .. } => ExprPrecedence::Postfix,
+
+ Expr::Box { .. } | Expr::Let { .. } | Expr::UnaryOp { .. } | Expr::Ref { .. } => {
+ ExprPrecedence::Prefix
+ }
+
+ Expr::Cast { .. } => ExprPrecedence::Cast,
+
+ Expr::BinaryOp { op, .. } => match op {
+ None => ExprPrecedence::Unambiguous,
+ Some(BinaryOp::LogicOp(LogicOp::Or)) => ExprPrecedence::LOr,
+ Some(BinaryOp::LogicOp(LogicOp::And)) => ExprPrecedence::LAnd,
+ Some(BinaryOp::CmpOp(_)) => ExprPrecedence::Compare,
+ Some(BinaryOp::Assignment { .. }) => ExprPrecedence::Assign,
+ Some(BinaryOp::ArithOp(arith_op)) => match arith_op {
+ ArithOp::Add | ArithOp::Sub => ExprPrecedence::Sum,
+ ArithOp::Mul | ArithOp::Div | ArithOp::Rem => ExprPrecedence::Product,
+ ArithOp::Shl | ArithOp::Shr => ExprPrecedence::Shift,
+ ArithOp::BitXor => ExprPrecedence::BitXor,
+ ArithOp::BitOr => ExprPrecedence::BitOr,
+ ArithOp::BitAnd => ExprPrecedence::BitAnd,
+ },
+ },
+
+ Expr::Assignment { .. } => ExprPrecedence::Assign,
+
+ Expr::Become { .. }
+ | Expr::Break { .. }
+ | Expr::Closure { .. }
+ | Expr::Return { .. }
+ | Expr::Yeet { .. }
+ | Expr::Yield { .. } => ExprPrecedence::Jump,
+
+ Expr::Continue { .. } => ExprPrecedence::Unambiguous,
+
+ Expr::Range { .. } => ExprPrecedence::Range,
+ }
+ }
+}
+
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct OffsetOf {
pub container: TypeRefId,
@@ -595,6 +661,7 @@ pub enum Pat {
Range {
start: Option<ExprId>,
end: Option<ExprId>,
+ range_type: RangeOp,
},
Slice {
prefix: Box<[PatId]>,