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-rw-r--r--crates/ra_syntax/src/ast/expr_extensions.rs18
1 files changed, 18 insertions, 0 deletions
diff --git a/crates/ra_syntax/src/ast/expr_extensions.rs b/crates/ra_syntax/src/ast/expr_extensions.rs
index 2fd039837..23b6aa901 100644
--- a/crates/ra_syntax/src/ast/expr_extensions.rs
+++ b/crates/ra_syntax/src/ast/expr_extensions.rs
@@ -126,6 +126,24 @@ pub enum BinOp {
126 BitXorAssign, 126 BitXorAssign,
127} 127}
128 128
129impl BinOp {
130 pub fn is_assignment(&self) -> bool {
131 match *self {
132 BinOp::Assignment
133 | BinOp::AddAssign
134 | BinOp::DivAssign
135 | BinOp::MulAssign
136 | BinOp::RemAssign
137 | BinOp::ShrAssign
138 | BinOp::ShlAssign
139 | BinOp::SubAssign
140 | BinOp::BitOrAssign
141 | BinOp::BitAndAssign
142 | BinOp::BitXorAssign => true,
143 _ => false,
144 }
145 }
146}
129impl ast::BinExpr { 147impl ast::BinExpr {
130 pub fn op_details(&self) -> Option<(SyntaxToken, BinOp)> { 148 pub fn op_details(&self) -> Option<(SyntaxToken, BinOp)> {
131 self.syntax().children_with_tokens().filter_map(|it| it.into_token()).find_map(|c| { 149 self.syntax().children_with_tokens().filter_map(|it| it.into_token()).find_map(|c| {