implement accessors for IndexExpr

2019-08-17 17:17:01 +03:00
parent fd4c083e42
commit 8919aa8065
1 changed files with 9 additions and 0 deletions
--- a/crates/ra_syntax/src/ast/expr_extensions.rs
+++ b/crates/ra_syntax/src/ast/expr_extensions.rs
@@ -195,6 +195,15 @@ impl ast::BinExpr {
    }
 }

+impl ast::IndexExpr {
+    pub fn base(&self) -> Option<ast::Expr> {
+        children(self).nth(0)
+    }
+    pub fn index(&self) -> Option<ast::Expr> {
+        children(self).nth(1)
+    }
+}
+
 pub enum ArrayExprKind {
    Repeat { initializer: Option<ast::Expr>, repeat: Option<ast::Expr> },
    ElementList(AstChildren<ast::Expr>),