1 files changed, 31 insertions, 0 deletions

diff --git a/src/tree.rs b/src/tree.rs
new file mode 100644
index 000000000..0924f38d0
--- /dev/null
+++ b/src/tree.rs
@@ -0,0 +1,31 @@
+use text::{TextUnit};
+use syntax_kinds::syntax_info;
+
+use std::fmt;
+
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct SyntaxKind(pub(crate) u32);
+
+impl SyntaxKind {
+    fn info(self) -> &'static SyntaxInfo {
+        syntax_info(self)
+    }
+}
+
+impl fmt::Debug for SyntaxKind {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        let name = self.info().name;
+        f.write_str(name)
+    }
+}
+
+
+pub(crate) struct SyntaxInfo {
+    pub name: &'static str,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct Token {
+    pub kind: SyntaxKind,
+    pub len: TextUnit,
+}
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