Formatter introduced

orchid-api/src/format.rs

@@ -0,0 +1,20 @@
+use orchid_api_derive::Coding;
+
+#[derive(Clone, Debug, Hash, PartialEq, Eq, Coding)]
+pub struct FormattingUnit {
+	pub subs: Vec<FormattingUnit>,
+	pub variants: Vec<FormattingVariant>,
+}
+
+#[derive(Clone, Debug, Hash, PartialEq, Eq, Coding)]
+pub struct FormattingVariant {
+	pub bounded: bool,
+	pub elements: Vec<FormattingElement>,
+}
+
+#[derive(Clone, Debug, Hash, PartialEq, Eq, Coding)]
+pub enum FormattingElement {
+	Sub { slot: u32, bounded: Option<bool> },
+	String(String),
+	Indent(Vec<FormattingElement>),
+}