2012-02-28 09:05:55 +00:00
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// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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2012-05-04 09:16:38 +00:00
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// Flags: --allow-natives-syntax --inline-construct
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2012-02-28 09:05:55 +00:00
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// Test inlining of constructor calls.
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function TestInlinedConstructor(closure) {
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var result;
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var counter = { value:0 };
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result = closure(11, 12, counter);
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assertEquals(23, result);
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assertEquals(1, counter.value);
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result = closure(23, 19, counter);
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assertEquals(42, result);
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assertEquals(2, counter.value);
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%OptimizeFunctionOnNextCall(closure);
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result = closure(1, 42, counter)
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assertEquals(43, result);
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assertEquals(3, counter.value);
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result = closure("foo", "bar", counter)
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assertEquals("foobar", result)
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assertEquals(4, counter.value);
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}
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2012-03-05 12:46:50 +00:00
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function TestInAllContexts(constructor) {
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function value_context(a, b, counter) {
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var obj = new constructor(a, b, counter);
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return obj.x;
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}
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function test_context(a, b, counter) {
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if (!new constructor(a, b, counter)) {
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assertUnreachable("should not happen");
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}
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return a + b;
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}
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function effect_context(a, b, counter) {
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new constructor(a, b, counter);
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return a + b;
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}
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TestInlinedConstructor(value_context);
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TestInlinedConstructor(test_context);
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TestInlinedConstructor(effect_context);
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%DeoptimizeFunction(value_context);
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%DeoptimizeFunction(test_context);
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%DeoptimizeFunction(effect_context);
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2012-05-04 09:16:38 +00:00
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%ClearFunctionTypeFeedback(value_context);
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%ClearFunctionTypeFeedback(test_context);
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%ClearFunctionTypeFeedback(effect_context);
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2012-03-05 12:46:50 +00:00
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}
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2012-02-28 09:05:55 +00:00
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// Test constructor returning nothing in all contexts.
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function c1(a, b, counter) {
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this.x = a + b;
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counter.value++;
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}
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2012-03-05 12:46:50 +00:00
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TestInAllContexts(c1);
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2012-02-28 09:05:55 +00:00
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// Test constructor returning an object in all contexts.
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function c2(a, b, counter) {
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var obj = new Object();
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obj.x = a + b;
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counter.value++;
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return obj;
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}
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2012-03-05 12:46:50 +00:00
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TestInAllContexts(c2);
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2012-02-28 09:05:55 +00:00
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// Test constructor returning a primitive value in all contexts.
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function c3(a, b, counter) {
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this.x = a + b;
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counter.value++;
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return "not an object";
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}
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2012-03-05 12:46:50 +00:00
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TestInAllContexts(c3);
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2012-02-28 09:05:55 +00:00
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// Test constructor called with too many arguments.
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function c_too_many(a, b) {
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this.x = a + b;
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}
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function f_too_many(a, b, c) {
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var obj = new c_too_many(a, b, c);
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return obj.x;
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}
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assertEquals(23, f_too_many(11, 12, 1));
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assertEquals(42, f_too_many(23, 19, 1));
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%OptimizeFunctionOnNextCall(f_too_many);
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assertEquals(43, f_too_many(1, 42, 1));
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assertEquals("foobar", f_too_many("foo", "bar", "baz"))
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// Test constructor called with too few arguments.
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function c_too_few(a, b) {
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assertSame(undefined, b);
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this.x = a + 1;
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}
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function f_too_few(a) {
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var obj = new c_too_few(a);
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return obj.x;
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}
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assertEquals(12, f_too_few(11));
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assertEquals(24, f_too_few(23));
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%OptimizeFunctionOnNextCall(f_too_few);
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assertEquals(2, f_too_few(1));
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assertEquals("foo1", f_too_few("foo"))
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// Test constructor that cannot be inlined.
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function c_unsupported_syntax(a, b, counter) {
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try {
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this.x = a + b;
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counter.value++;
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} catch(e) {
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throw new Error();
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}
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}
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2012-03-05 12:46:50 +00:00
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TestInAllContexts(c_unsupported_syntax);
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// Regression test: Inlined constructors called as functions do not get their
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// implicit receiver object set to undefined, even in strict mode.
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function c_strict(a, b, counter) {
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"use strict";
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this.x = a + b;
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counter.value++;
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2012-02-28 09:05:55 +00:00
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}
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2012-03-05 12:46:50 +00:00
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TestInAllContexts(c_strict);
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