Split up and expand ast

src/ast/table_constr.rs

@@ -0,0 +1,48 @@
+use crate::span::{HasSpan, Span};
+
+use super::basic::Space;
+use super::expr::Expr;
+use super::lit::TableLitElem;
+
+#[derive(Debug, Clone)]
+pub enum TableConstrElem {
+    /// See [`TableLitElem`].
+    Lit(TableLitElem),
+
+    /// `[a]: b`
+    ///
+    /// Structure: `[ s0 index s1 ] s2 : s3 value`
+    Indexed {
+        s0: Space,
+        index: Box<Expr>,
+        s1: Space,
+        s2: Space,
+        s3: Space,
+        value: Box<Expr>,
+        span: Span,
+    },
+}
+
+impl HasSpan for TableConstrElem {
+    fn span(&self) -> Span {
+        match self {
+            TableConstrElem::Lit(lit) => lit.span(),
+            TableConstrElem::Indexed { span, .. } => *span,
+        }
+    }
+}
+
+/// `{ a, b, foo: c, [d]: e }`
+#[derive(Debug, Clone)]
+pub struct TableConstr {
+    pub elems: Vec<(Space, TableConstrElem, Space)>,
+    /// `Some` if there is a trailing comma, `None` otherwise.
+    pub trailing_comma: Option<Space>,
+    pub span: Span,
+}
+
+impl HasSpan for TableConstr {
+    fn span(&self) -> Span {
+        self.span
+    }
+}