1 files changed, 20 insertions, 0 deletions

diff --git a/lib/src/make.rs b/lib/src/make.rs
new file mode 100644
index 0000000..0b21105
--- /dev/null
+++ b/lib/src/make.rs
@@ -0,0 +1,20 @@
+use rnix::{SyntaxNode, types::{TypedNode, self}};
+
+fn ast_from_text<N: TypedNode>(text: &str) -> N {
+    let parse = rnix::parse(text);
+    let node = match parse.node().descendants().find_map(N::cast) {
+        Some(it) => it,
+        None => {
+            panic!("Failed to make ast node `{}` from text {}", std::any::type_name::<N>(), text)
+        }
+    };
+    node
+}
+
+pub fn parenthesize(node: &SyntaxNode) -> types::Paren {
+    ast_from_text(&format!("({})", node))
+}
+
+pub fn unary_not(node: &SyntaxNode) -> types::UnaryOp {
+    ast_from_text(&format!("!{}", node))
+}