Rename String.prototype.contains to 'includes'.

Per TC39 Nov 2014 decison.

R=arv@chromium.org,yangguo@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/742963002

Cr-Commit-Position: refs/heads/master@{#25430}

src/harmony-string.js

@@ -95,14 +95,14 @@ function StringEndsWith(searchString /* position */) {  // length == 1
 
 
 // ES6 draft 04-05-14, section 21.1.3.6
-function StringContains(searchString /* position */) {  // length == 1
-  CHECK_OBJECT_COERCIBLE(this, "String.prototype.contains");
+function StringIncludes(searchString /* position */) {  // length == 1
+  CHECK_OBJECT_COERCIBLE(this, "String.prototype.includes");
 
   var s = TO_STRING_INLINE(this);
 
   if (IS_REGEXP(searchString)) {
     throw MakeTypeError("first_argument_not_regexp",
-                        ["String.prototype.contains"]);
+                        ["String.prototype.includes"]);
   }
 
   var ss = TO_STRING_INLINE(searchString);
@@ -184,7 +184,7 @@ function ExtendStringPrototype() {
   // Set up the non-enumerable functions on the String prototype object.
   InstallFunctions($String.prototype, DONT_ENUM, $Array(
     "codePointAt", StringCodePointAt,
-    "contains", StringContains,
+    "includes", StringIncludes,
     "endsWith", StringEndsWith,
     "repeat", StringRepeat,
     "startsWith", StringStartsWith

test/js-perf-test/Strings/harmony-string.js

@@ -9,8 +9,8 @@ new BenchmarkSuite('StringFunctions', [1000], [
                 StartsWith, WithSetup, WithTearDown),
   new Benchmark('StringEndsWith', false, false, 0,
                 EndsWith, WithSetup, WithTearDown),
-  new Benchmark('StringContains', false, false, 0,
-                Contains, ContainsSetup, WithTearDown),
+  new Benchmark('StringIncludes', false, false, 0,
+                Includes, IncludesSetup, WithTearDown),
   new Benchmark('StringFromCodePoint', false, false, 0,
                 FromCodePoint, FromCodePointSetup, FromCodePointTearDown),
   new Benchmark('StringCodePointAt', false, false, 0,
@@ -60,13 +60,13 @@ function EndsWith() {
   result = str.endsWith(substr);
 }
 
-function ContainsSetup() {
+function IncludesSetup() {
   str = "def".repeat(100) + "abc".repeat(100) + "qqq".repeat(100);
   substr = "abc".repeat(100);
 }
 
-function Contains() {
-  result = str.contains(substr);
+function Includes() {
+  result = str.includes(substr);
 }
 
 var MAX_CODE_POINT = 0xFFFFF;

test/mjsunit/harmony/string-contains.js → test/mjsunit/harmony/string-includes.js

@@ -27,42 +27,42 @@
 
 // Flags: --harmony-strings
 
-assertEquals(1, String.prototype.contains.length);
+assertEquals(1, String.prototype.includes.length);
 
 var reString = "asdf[a-z]+(asdf)?";
-assertTrue(reString.contains("[a-z]+"));
-assertTrue(reString.contains("(asdf)?"));
+assertTrue(reString.includes("[a-z]+"));
+assertTrue(reString.includes("(asdf)?"));
 
 // Random greek letters
 var twoByteString = "\u039a\u0391\u03a3\u03a3\u0395";
 
 // Test single char pattern
-assertTrue(twoByteString.contains("\u039a"), "Lamda");
-assertTrue(twoByteString.contains("\u0391"), "Alpha");
-assertTrue(twoByteString.contains("\u03a3"), "First Sigma");
-assertTrue(twoByteString.contains("\u03a3",3), "Second Sigma");
-assertTrue(twoByteString.contains("\u0395"), "Epsilon");
-assertFalse(twoByteString.contains("\u0392"), "Not beta");
+assertTrue(twoByteString.includes("\u039a"), "Lamda");
+assertTrue(twoByteString.includes("\u0391"), "Alpha");
+assertTrue(twoByteString.includes("\u03a3"), "First Sigma");
+assertTrue(twoByteString.includes("\u03a3",3), "Second Sigma");
+assertTrue(twoByteString.includes("\u0395"), "Epsilon");
+assertFalse(twoByteString.includes("\u0392"), "Not beta");
 
 // Test multi-char pattern
-assertTrue(twoByteString.contains("\u039a\u0391"), "lambda Alpha");
-assertTrue(twoByteString.contains("\u0391\u03a3"), "Alpha Sigma");
-assertTrue(twoByteString.contains("\u03a3\u03a3"), "Sigma Sigma");
-assertTrue(twoByteString.contains("\u03a3\u0395"), "Sigma Epsilon");
+assertTrue(twoByteString.includes("\u039a\u0391"), "lambda Alpha");
+assertTrue(twoByteString.includes("\u0391\u03a3"), "Alpha Sigma");
+assertTrue(twoByteString.includes("\u03a3\u03a3"), "Sigma Sigma");
+assertTrue(twoByteString.includes("\u03a3\u0395"), "Sigma Epsilon");
 
-assertFalse(twoByteString.contains("\u0391\u03a3\u0395"),
+assertFalse(twoByteString.includes("\u0391\u03a3\u0395"),
     "Not Alpha Sigma Epsilon");
 
 //single char pattern
-assertTrue(twoByteString.contains("\u0395"));
+assertTrue(twoByteString.includes("\u0395"));
 
-assertThrows("String.prototype.contains.call(null, 'test')", TypeError);
-assertThrows("String.prototype.contains.call(null, null)", TypeError);
-assertThrows("String.prototype.contains.call(undefined, undefined)", TypeError);
+assertThrows("String.prototype.includes.call(null, 'test')", TypeError);
+assertThrows("String.prototype.includes.call(null, null)", TypeError);
+assertThrows("String.prototype.includes.call(undefined, undefined)", TypeError);
 
-assertThrows("String.prototype.contains.apply(null, ['test'])", TypeError);
-assertThrows("String.prototype.contains.apply(null, [null])", TypeError);
-assertThrows("String.prototype.contains.apply(undefined, [undefined])", TypeError);
+assertThrows("String.prototype.includes.apply(null, ['test'])", TypeError);
+assertThrows("String.prototype.includes.apply(null, [null])", TypeError);
+assertThrows("String.prototype.includes.apply(undefined, [undefined])", TypeError);
 
 var TEST_INPUT = [{
   msg: "Empty string", val: ""
@@ -91,51 +91,51 @@ for (; i < l; i++) {
   var e = TEST_INPUT[i];
   var v = e.val;
   var s = String(v);
-  assertTrue(s.contains(v), e.msg);
-  assertTrue(String.prototype.contains.call(v, v), e.msg);
-  assertTrue(String.prototype.contains.apply(v, [v]), e.msg);
+  assertTrue(s.includes(v), e.msg);
+  assertTrue(String.prototype.includes.call(v, v), e.msg);
+  assertTrue(String.prototype.includes.apply(v, [v]), e.msg);
 }
 
 // Test cases found in FF
-assertTrue("abc".contains("a"));
-assertTrue("abc".contains("b"));
-assertTrue("abc".contains("abc"));
-assertTrue("abc".contains("bc"));
-assertFalse("abc".contains("d"));
-assertFalse("abc".contains("abcd"));
-assertFalse("abc".contains("ac"));
-assertTrue("abc".contains("abc", 0));
-assertTrue("abc".contains("bc", 0));
-assertFalse("abc".contains("de", 0));
-assertTrue("abc".contains("bc", 1));
-assertTrue("abc".contains("c", 1));
-assertFalse("abc".contains("a", 1));
-assertFalse("abc".contains("abc", 1));
-assertTrue("abc".contains("c", 2));
-assertFalse("abc".contains("d", 2));
-assertFalse("abc".contains("dcd", 2));
-assertFalse("abc".contains("a", 42));
-assertFalse("abc".contains("a", Infinity));
-assertTrue("abc".contains("ab", -43));
-assertFalse("abc".contains("cd", -42));
-assertTrue("abc".contains("ab", -Infinity));
-assertFalse("abc".contains("cd", -Infinity));
-assertTrue("abc".contains("ab", NaN));
-assertFalse("abc".contains("cd", NaN));
-assertFalse("xyzzy".contains("zy\0", 2));
+assertTrue("abc".includes("a"));
+assertTrue("abc".includes("b"));
+assertTrue("abc".includes("abc"));
+assertTrue("abc".includes("bc"));
+assertFalse("abc".includes("d"));
+assertFalse("abc".includes("abcd"));
+assertFalse("abc".includes("ac"));
+assertTrue("abc".includes("abc", 0));
+assertTrue("abc".includes("bc", 0));
+assertFalse("abc".includes("de", 0));
+assertTrue("abc".includes("bc", 1));
+assertTrue("abc".includes("c", 1));
+assertFalse("abc".includes("a", 1));
+assertFalse("abc".includes("abc", 1));
+assertTrue("abc".includes("c", 2));
+assertFalse("abc".includes("d", 2));
+assertFalse("abc".includes("dcd", 2));
+assertFalse("abc".includes("a", 42));
+assertFalse("abc".includes("a", Infinity));
+assertTrue("abc".includes("ab", -43));
+assertFalse("abc".includes("cd", -42));
+assertTrue("abc".includes("ab", -Infinity));
+assertFalse("abc".includes("cd", -Infinity));
+assertTrue("abc".includes("ab", NaN));
+assertFalse("abc".includes("cd", NaN));
+assertFalse("xyzzy".includes("zy\0", 2));
 
 var dots = Array(10000).join(".");
-assertFalse(dots.contains("\x01", 10000));
-assertFalse(dots.contains("\0", 10000));
+assertFalse(dots.includes("\x01", 10000));
+assertFalse(dots.includes("\0", 10000));
 
 var myobj = {
   toString: function () {
     return "abc";
   },
-  contains: String.prototype.contains
+  includes: String.prototype.includes
 };
-assertTrue(myobj.contains("abc"));
-assertFalse(myobj.contains("cd"));
+assertTrue(myobj.includes("abc"));
+assertFalse(myobj.includes("cd"));
 
 var gotStr = false;
 var gotPos = false;
@@ -145,22 +145,22 @@ myobj = {
     gotStr = true;
     return "xyz";
   },
-  contains: String.prototype.contains
+  includes: String.prototype.includes
 };
 
-assertEquals("foo[a-z]+(bar)?".contains("[a-z]+"), true);
-assertThrows("'foo[a-z]+(bar)?'.contains(/[a-z]+/)", TypeError);
-assertThrows("'foo/[a-z]+/(bar)?'.contains(/[a-z]+/)", TypeError);
-assertEquals("foo[a-z]+(bar)?".contains("(bar)?"), true);
-assertThrows("'foo[a-z]+(bar)?'.contains(/(bar)?/)", TypeError);
-assertThrows("'foo[a-z]+/(bar)?/'.contains(/(bar)?/)", TypeError);
+assertEquals("foo[a-z]+(bar)?".includes("[a-z]+"), true);
+assertThrows("'foo[a-z]+(bar)?'.includes(/[a-z]+/)", TypeError);
+assertThrows("'foo/[a-z]+/(bar)?'.includes(/[a-z]+/)", TypeError);
+assertEquals("foo[a-z]+(bar)?".includes("(bar)?"), true);
+assertThrows("'foo[a-z]+(bar)?'.includes(/(bar)?/)", TypeError);
+assertThrows("'foo[a-z]+/(bar)?/'.includes(/(bar)?/)", TypeError);
 
-assertThrows("String.prototype.contains.call({ 'toString': function() { " +
+assertThrows("String.prototype.includes.call({ 'toString': function() { " +
   "throw RangeError(); } }, /./)", RangeError);
-assertThrows("String.prototype.contains.call({ 'toString': function() { " +
+assertThrows("String.prototype.includes.call({ 'toString': function() { " +
   "return 'abc'; } }, /./)", TypeError);
 
-assertThrows("String.prototype.contains.apply({ 'toString': function() { " +
+assertThrows("String.prototype.includes.apply({ 'toString': function() { " +
   "throw RangeError(); } }, [/./])", RangeError);
-assertThrows("String.prototype.contains.apply({ 'toString': function() { " +
+assertThrows("String.prototype.includes.apply({ 'toString': function() { " +
   "return 'abc'; } }, [/./])", TypeError);