JS: optimize loop over array.withIndex()

See KT-20932
2017-10-25 20:12:15 +03:00
parent 1be86e05ae
commit 132285ea03
5 changed files with 287 additions and 3 deletions
@@ -0,0 +1,55 @@
+// EXPECTED_REACHABLE_NODES: 1128
+// CHECK_CONTAINS_NO_CALLS: test1 except=toString
+// CHECK_CONTAINS_NO_CALLS: test2 except=toString
+// CHECK_CONTAINS_NO_CALLS: test3 except=toString
+// CHECK_CONTAINS_NO_CALLS: test4 except=toString
+
+fun test1(a: Array<String>): String {
+    var s = ""
+    for ((i, x) in a.withIndex()) {
+        s += "$i:$x;"
+    }
+    return s
+}
+
+fun test2(a: Array<String>): String {
+    var s = ""
+    for ((_, x) in a.withIndex()) {
+        s += "$x;"
+    }
+    return s
+}
+
+fun test3(a: Array<String>): String {
+    var s = ""
+    for ((i, _) in a.withIndex()) {
+        s += "$i;"
+    }
+    return s
+}
+
+fun test4(a: Array<String>): String {
+    var s = ""
+    for (i in a.indices) {
+        s += "$i;"
+    }
+    return s
+}
+
+fun box(): String {
+    val array = arrayOf("foo", "bar", "baz")
+
+    var r = test1(array)
+    if (r != "0:foo;1:bar;2:baz;") return "fail1: $r"
+
+    r = test2(array)
+    if (r != "foo;bar;baz;") return "fail2: $r"
+
+    r = test3(array)
+    if (r != "0;1;2;") return "fail3: $r"
+
+    r = test4(array)
+    if (r != "0;1;2;") return "fail4: $r"
+
+    return "OK"
+}
@@ -0,0 +1,55 @@
+// EXPECTED_REACHABLE_NODES: 1461
+// CHECK_NOT_CALLED_IN_SCOPE: function=component1 scope=test1
+// CHECK_NOT_CALLED_IN_SCOPE: function=component1 scope=test2
+// CHECK_NOT_CALLED_IN_SCOPE: function=component1 scope=test3
+// CHECK_CONTAINS_NO_CALLS: test4 except=toString
+
+fun test1(a: Sequence<String>): String {
+    var s = ""
+    for ((i, x) in a.withIndex()) {
+        s += "$i:$x;"
+    }
+    return s
+}
+
+fun test2(a: Collection<String>): String {
+    var s = ""
+    for ((_, x) in a.withIndex()) {
+        s += "$x;"
+    }
+    return s
+}
+
+fun test3(a: List<String>): String {
+    var s = ""
+    for ((i, _) in a.withIndex()) {
+        s += "$i;"
+    }
+    return s
+}
+
+fun test4(a: Set<String>): String {
+    var s = ""
+    for (i in a.indices) {
+        s += "$i;"
+    }
+    return s
+}
+
+fun box(): String {
+    val list = listOf("foo", "bar", "baz")
+
+    var r = test1(list.asSequence())
+    if (r != "0:foo;1:bar;2:baz;") return "fail1: $r"
+
+    r = test2(list)
+    if (r != "foo;bar;baz;") return "fail2: $r"
+
+    r = test3(list)
+    if (r != "0;1;2;") return "fail3: $r"
+
+    r = test4(list.toSet())
+    if (r != "0;1;2;") return "fail4: $r"
+
+    return "OK"
+}