Migrated several tests from blink to V8 repository.

test/webkit/toString-number-dot-expr.js

+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  Redistributions in binary form must reproduce the above copyright
+//     notice, this list of conditions and the following disclaimer in the
+//     documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+description(
+"This test checks that toString() round-trip on a function that has a expression of form 4..x does not lose its meaning."
++ " The expression accesses the property 'x' from number '4'."
+);
+
+// construct same test-case for different kinds of number literals. the switch is used to avoid
+// individual returns getting optimized away (if the interpreter would do dead code elimination)
+
+// testcase for number literal with decimal point, i.e '4.'
+function f1(a) {
+    switch(a) {
+    case "member":
+        return 4..x;
+    case "arrayget":
+        return 4.["x"];
+    case "constr":
+        return 4.();
+    case "funccall":
+        return 4..f();
+    case "parenfunccall":
+        return (4..x)();
+    case "assignment":
+        return 4..x = 33;
+    case "assignment2":
+        return 4..x >>>= 1;
+    case "prefix":
+        return ++4..x;
+    case "postfix":
+        return 4..x++;
+   case "delete":
+        delete 4..x;
+        return 4..x;
+    }
+
+    return 0;
+}
+
+// '4. .'
+function f2(a) {
+    switch(a) {
+    case "member":
+        return 4. .x;
+    case "arrayget":
+        return 4. ["x"];
+    case "constr":
+        return 4.();
+    case "funccall":
+        return 4. .f();
+    case "parenfunccall":
+        return (4. .x)();
+    case "assignment":
+        return 4. .x = 33;
+    case "assignment2":
+        return 4. .x >>>= 1;
+    case "prefix":
+        return ++4. .x;
+    case "postfix":
+        return 4. .x++;
+    case "delete":
+        delete 4. .x;
+        return 4. .x;
+    }
+
+    return 0;
+}
+
+// '4e20'
+function f2(a) {
+    switch(a) {
+    case "member":
+        return 4e20.x;
+    case "arrayget":
+        return 4e20["x"];
+    case "constr":
+        return 4e20();
+    case "funccall":
+        return 4e20.f();
+    case "parenfunccall":
+        return (4e20.x)();
+    case "assignment":
+        return 4e20.x = 33;
+    case "assignment2":
+        return 4e20.x >>>= 1;
+    case "prefix":
+        return ++4e20.x;
+    case "postfix":
+        return 4e20.x++;
+    case "delete":
+        delete 4e20.x;
+        return 4e20.x;
+    }
+
+    return 0;
+}
+
+// '4.1e-20'
+function f3(a) {
+    switch(a) {
+    case "member":
+        return 4.1e-20.x;
+    case "arrayget":
+        return 4.1e-20["x"];
+    case "constr":
+        return 4.1e-20();
+    case "funccall":
+        return 4.1e-20.f();
+    case "parenfunccall":
+        return (4.1e-20.x)();
+    case "assignment":
+        return 4.1e-20.x = 33;
+    case "assignment2":
+        return 4.1e-20.x >>>= 1;
+    case "prefix":
+        return ++4.1e-20.x;
+    case "postfix":
+        return 4.1e-20.x++;
+   case "delete":
+        delete 4.1e-20.x;
+        return 4.1e-20.x;
+    }
+
+    return 0;
+}
+
+// '4'
+function f4(a) {
+    switch(a) {
+    case "member":
+        return 4 .x;
+    case "arrayget":
+        return 4["x"];
+    case "constr":
+        return 4();
+    case "funccall":
+        return 4 .f();
+    case "parenfunccall":
+        return (4 .x)();
+    case "assignment":
+        return 4 .x = 33;
+    case "assignment2":
+        return 4 .x >>>= 1;
+    case "prefix":
+        return ++4 .x;
+    case "postfix":
+        return 4 .x++;
+    case "delete":
+        delete 4 .x;
+        return 4 .x;
+
+    }
+
+    return 0;
+}
+
+// '(4)'
+function f5(a) {
+    switch(a) {
+    case "member":
+        return (4).x;
+    case "arrayget":
+        return (4)["x"];
+    case "constr":
+        return (4)();
+    case "funccall":
+        return (4).f();
+    case "parenfunccall":
+        return ((4).x)();
+    case "assignment":
+        return (4).x = 33;
+    case "assignment2":
+        return (4).x >>>= 1;
+    case "prefix":
+        return ++(4).x;
+    case "postfix":
+        return (4).x++;
+    case "delete":
+        delete (4).x;
+        return (4).x;
+    }
+
+    return 0;
+}
+unevalf = function(x) { return '(' + x.toString() + ')'; };
+
+function testToString(fn)
+{
+    shouldBe("unevalf(eval(unevalf(" + fn + ")))", "unevalf(" + fn + ")");
+}
+
+for(var i = 1; i < 6; ++i)
+    testToString("f" + i);