1 files changed, 169 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/alias-function-closed.js b/js/src/jit-test/tests/arguments/alias-function-closed.js
new file mode 100644
index 000000000..6c14ee78e
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/alias-function-closed.js
@@ -0,0 +1,169 @@
+function f1(a, aIs,        // without default parameter
+            b=()=>62, bIs, // with default parameter
+            // before function body
+            c=(assertEq(a(), aIs), assertEq(b(), bIs),
+               ()=>63),
+            cIs) {
+  // before function declarations
+  assertEq(a(), 52);
+  assertEq(b(), 53);
+  assertEq(c(), 55);
+
+  function a() {
+    return 52;
+  }
+  function c() {
+    return 54;
+  }
+  function g() {
+    // close here
+    assertEq(a(), 52); // after function declaration
+    assertEq(b(), 53); // before function declaration
+    assertEq(c(), 55); // before last function declaration
+  }
+  // function declaration after closed
+  function b() {
+    return 53;
+  }
+
+  assertEq(a(), 52); // after function declaration
+  assertEq(b(), 53); // after function declaration
+  assertEq(c(), 55); // before last function declaration
+
+  g();
+  c = ()=>72;
+  assertEq(c(), 72); // after assignment in body
+  h();
+  assertEq(c(), 82); // after assignment in closed function
+
+  function h() {
+    assertEq(c(), 72); // after assignment in body
+    c = ()=>82;
+    assertEq(c(), 82); // after assignment in closed function
+  }
+  // function re-declaration after closed and assignment
+  function c() {
+    return 55;
+  }
+}
+f1(()=>42, 42, undefined, 62, undefined, 63);
+f1(()=>42, 42, undefined, 62, ()=>44, 44);
+f1(()=>42, 42, ()=>43, 43, undefined, 63);
+f1(()=>42, 42, ()=>43, 43, ()=>44, 44);
+
+function f2(a, aIs,
+            // call before body
+            b=(function() { assertEq(a(), aIs); })(),
+            // a inside body not accessible from defaults
+            c=function() { assertEq(a(), 42); }) {
+  function a() {
+    return 52;
+  }
+  function g() {
+    // close here
+    assertEq(a(), 52);
+  }
+
+  assertEq(a(), 52);
+  g();
+  c();
+}
+f2(()=>42, 42);
+
+function f3(a, aIs,
+            // call before body
+            // close here
+            b=(function() { assertEq(a(), aIs); })(),
+            // a inside body not accessible from defaults
+            c=function() { assertEq(a(), 42); }) {
+  function a() {
+    return 52;
+  }
+
+  assertEq(a(), 52);
+  c();
+}
+f3(()=>42, 42);
+
+function f4(a,
+            // assignment before body
+            b=a=()=>62,
+            c=(assertEq(a(), 62)),
+            // eval in defaults exprs get own var envs
+            d=eval("function a() { return 72; }"),
+            e=(assertEq(a(), 62))) {
+  function a() {
+    return 52;
+  }
+  function g() {
+    // close here
+    assertEq(a(), 52);
+  }
+
+  assertEq(a(), 52);
+  g();
+}
+f4(()=>42);
+
+function f5(a, b, c, d) {
+  // before var/function declarations
+  assertEq(a(), 52);
+  assertEq(b(), 53);
+  assertEq(c(), 54);
+  assertEq(d(), 55);
+
+  function g() {
+    // before var/function declarations, called after var declarations
+    // close here
+    assertEq(a(), 52);
+    assertEq(b(), 63);
+    assertEq(c(), 54);
+    assertEq(d(), 65);
+  }
+
+  var a, b = ()=>63;
+  var c, d = ()=>65;
+
+  // after var declarations, before function declarations
+  assertEq(a(), 52);
+  assertEq(b(), 63);
+  assertEq(c(), 54);
+  assertEq(d(), 65);
+
+  function h() {
+    // after var declarations, before function declarations
+    assertEq(a(), 52);
+    assertEq(b(), 63);
+    assertEq(c(), 54);
+    assertEq(d(), 65);
+  }
+  function a() {
+    return 52;
+  }
+  function b() {
+    return 53;
+  }
+  function c() {
+    return 54;
+  }
+  function d() {
+    return 55;
+  }
+  function i() {
+    // after var/function declarations
+    assertEq(a(), 52);
+    assertEq(b(), 63);
+    assertEq(c(), 54);
+    assertEq(d(), 65);
+  }
+
+  // after var/function declarations
+  assertEq(a(), 52);
+  assertEq(b(), 63);
+  assertEq(c(), 54);
+  assertEq(d(), 65);
+  g();
+  h();
+  i();
+}
+f5(()=>42, ()=>43, ()=>44, ()=>45);