More code refinements.

2020-12-29 10:41:20 +08:00
parent e481a8019d
commit eca8212f38
12 changed files with 317 additions and 157 deletions
--- a/tests/assignments.rs
+++ b/tests/assignments.rs
@@ -0,0 +1,82 @@
+use rhai::{Engine, EvalAltResult, ParseErrorType, INT};
+
+#[test]
+fn test_assignments() -> Result<(), Box<EvalAltResult>> {
+    let engine = Engine::new();
+
+    assert_eq!(engine.eval::<INT>("let x = 42; x = 123; x")?, 123);
+    assert_eq!(engine.eval::<INT>("let x = 42; x += 123; x")?, 165);
+
+    #[cfg(not(feature = "no_index"))]
+    assert_eq!(engine.eval::<INT>("let x = [42]; x[0] += 123; x[0]")?, 165);
+
+    #[cfg(not(feature = "no_object"))]
+    assert_eq!(engine.eval::<INT>("let x = #{a:42}; x.a += 123; x.a")?, 165);
+
+    Ok(())
+}
+
+#[test]
+fn test_assignments_bad_lhs() -> Result<(), Box<EvalAltResult>> {
+    let engine = Engine::new();
+
+    assert_eq!(
+        *engine.compile(r"(x+y) = 42;").expect_err("should error").0,
+        ParseErrorType::AssignmentToInvalidLHS("".to_string())
+    );
+    assert_eq!(
+        *engine.compile(r"foo(x) = 42;").expect_err("should error").0,
+        ParseErrorType::AssignmentToInvalidLHS("".to_string())
+    );
+    assert_eq!(
+        *engine.compile(r"true = 42;").expect_err("should error").0,
+        ParseErrorType::AssignmentToConstant("".to_string())
+    );
+    assert_eq!(
+        *engine.compile(r"123 = 42;").expect_err("should error").0,
+        ParseErrorType::AssignmentToConstant("".to_string())
+    );
+
+    #[cfg(not(feature = "no_object"))]
+    {
+        assert_eq!(
+            *engine
+                .compile(r"x.foo() = 42;")
+                .expect_err("should error")
+                .0,
+            ParseErrorType::AssignmentToInvalidLHS("".to_string())
+        );
+        assert_eq!(
+            *engine
+                .compile(r"x.foo().x.y = 42;")
+                .expect_err("should error")
+                .0,
+            ParseErrorType::AssignmentToInvalidLHS("".to_string())
+        );
+        assert_eq!(
+            *engine
+                .compile(r"x.y.z.foo() = 42;")
+                .expect_err("should error")
+                .0,
+            ParseErrorType::AssignmentToInvalidLHS("".to_string())
+        );
+        #[cfg(not(feature = "no_index"))]
+        assert_eq!(
+            *engine
+                .compile(r"x.foo()[0] = 42;")
+                .expect_err("should error")
+                .0,
+            ParseErrorType::AssignmentToInvalidLHS("".to_string())
+        );
+        #[cfg(not(feature = "no_index"))]
+        assert_eq!(
+            *engine
+                .compile(r"x[y].z.foo() = 42;")
+                .expect_err("should error")
+                .0,
+            ParseErrorType::AssignmentToInvalidLHS("".to_string())
+        );
+    }
+
+    Ok(())
+}