Fix bug in chain parsing.

CHANGELOG.md

@@ -7,6 +7,7 @@ Version 1.13.0
 Bug fixes
 ---------
 
+* Complex indexing/dotting chains now parse correctly, for example: `a[b][c[d]].e`
 * `map` and `filter` for arrays are marked `pure`. Warnings are added to the documentation of pure array methods that take `this` closures.
 
 

src/parser.rs

@@ -2102,8 +2102,10 @@ impl Engine {
         op_pos: Position,
     ) -> ParseResult<Expr> {
         match (lhs, rhs) {
-            // lhs[idx_expr].rhs
+            // lhs[...][...].rhs
-            (Expr::Index(mut x, options, pos), rhs) => {
+            (Expr::Index(mut x, options, pos), rhs)
+                if !parent_options.contains(ASTFlags::BREAK) =>
+            {
                 let options = options | parent_options;
                 x.rhs = Self::make_dot_expr(state, x.rhs, rhs, options, op_flags, op_pos)?;
                 Ok(Expr::Index(x, ASTFlags::NONE, pos))

tests/arrays.rs

@@ -133,6 +133,20 @@ fn test_arrays() -> Result<(), Box<EvalAltResult>> {
         );
     }
 
+    #[cfg(not(feature = "no_object"))]
+    assert_eq!(
+        engine.eval::<INT>(
+            "
+                let x = #{ foo: 42 };
+                let n = 0;
+                let a = [[x]];
+                let i = [n];
+                a[n][i[n]].foo
+            "
+        )?,
+        42
+    );
+
     assert_eq!(
         engine
             .eval::<Dynamic>(