Add sheet data tree structure

1 files changed, 20 insertions, 0 deletions

diff --git a/systems/sheet/src/lazy.rs b/systems/sheet/src/lazy.rs
new file mode 100644
index 0000000..2278704
--- /dev/null
+++ b/systems/sheet/src/lazy.rs
@@ -0,0 +1,20 @@
+#[macro_export]
+macro_rules! lazy_node {
+    ($($elem:expr),* $(,)?) => {
+        vec![$($elem.to_string()),*]
+    };
+}
+
+#[macro_export]
+macro_rules! lazy_idx {
+    ($idx:expr, $ver:expr) => {
+        crate::index_source::IndexSource::new(false, $idx, $ver)
+    };
+}
+
+#[macro_export]
+macro_rules! lazy_ridx {
+    ($idx:expr, $ver:expr) => {
+        crate::index_source::IndexSource::new(true, $idx, $ver)
+    };
+}