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Unified Diff: test/mjsunit/compiler/function-bind.js

Issue 2916063002: [turbofan] Optimize Function.prototype.bind for the common case. (Closed)
Patch Set: Address feedback. Created 3 years, 7 months ago
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Index: test/mjsunit/compiler/function-bind.js
diff --git a/test/mjsunit/compiler/function-bind.js b/test/mjsunit/compiler/function-bind.js
new file mode 100644
index 0000000000000000000000000000000000000000..11337b4bf9bdb30b21430ccd3becb23b6614479d
--- /dev/null
+++ b/test/mjsunit/compiler/function-bind.js
@@ -0,0 +1,77 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+(function() {
+ "use strict";
+ function bar() { return this; }
+
+ function foo(x) {
+ return bar.bind(x);
+ }
+
+ assertEquals(0, foo(0)());
+ assertEquals(1, foo(1)());
+ %OptimizeFunctionOnNextCall(foo);
+ assertEquals("", foo("")());
+})();
+
+(function() {
+ "use strict";
+ function bar(x) { return x; }
+
+ function foo(x) {
+ return bar.bind(undefined, x);
+ }
+
+ assertEquals(0, foo(0)());
+ assertEquals(1, foo(1)());
+ %OptimizeFunctionOnNextCall(foo);
+ assertEquals("", foo("")());
+})();
+
+(function() {
+ function bar(x) { return x; }
+
+ function foo(x) {
+ return bar.bind(undefined, x);
+ }
+
+ assertEquals(0, foo(0)());
+ assertEquals(1, foo(1)());
+ %OptimizeFunctionOnNextCall(foo);
+ assertEquals("", foo("")());
+})();
+
+(function() {
+ "use strict";
+ function bar(x, y) { return x + y; }
+
+ function foo(x, y) {
+ return bar.bind(undefined, x, y);
+ }
+
+ assertEquals(0, foo(0, 0)());
+ assertEquals(2, foo(1, 1)());
+ %OptimizeFunctionOnNextCall(foo);
+ assertEquals("ab", foo("a", "b")());
+ assertEquals(0, foo(0, 1).length);
+ assertEquals("bound bar", foo(1, 2).name)
+})();
+
+(function() {
+ function bar(x, y) { return x + y; }
+
+ function foo(x, y) {
+ return bar.bind(undefined, x, y);
+ }
+
+ assertEquals(0, foo(0, 0)());
+ assertEquals(2, foo(1, 1)());
+ %OptimizeFunctionOnNextCall(foo);
+ assertEquals("ab", foo("a", "b")());
+ assertEquals(0, foo(0, 1).length);
+ assertEquals("bound bar", foo(1, 2).name)
+})();
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