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| 1 | +/* |
| 2 | + * Copyright (c) 2024, 2024, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | + * |
| 5 | + * The Universal Permissive License (UPL), Version 1.0 |
| 6 | + * |
| 7 | + * Subject to the condition set forth below, permission is hereby granted to any |
| 8 | + * person obtaining a copy of this software, associated documentation and/or |
| 9 | + * data (collectively the "Software"), free of charge and under any and all |
| 10 | + * copyright rights in the Software, and any and all patent rights owned or |
| 11 | + * freely licensable by each licensor hereunder covering either (i) the |
| 12 | + * unmodified Software as contributed to or provided by such licensor, or (ii) |
| 13 | + * the Larger Works (as defined below), to deal in both |
| 14 | + * |
| 15 | + * (a) the Software, and |
| 16 | + * |
| 17 | + * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if |
| 18 | + * one is included with the Software each a "Larger Work" to which the Software |
| 19 | + * is contributed by such licensors), |
| 20 | + * |
| 21 | + * without restriction, including without limitation the rights to copy, create |
| 22 | + * derivative works of, display, perform, and distribute the Software and make, |
| 23 | + * use, sell, offer for sale, import, export, have made, and have sold the |
| 24 | + * Software and the Larger Work(s), and to sublicense the foregoing rights on |
| 25 | + * either these or other terms. |
| 26 | + * |
| 27 | + * This license is subject to the following condition: |
| 28 | + * |
| 29 | + * The above copyright notice and either this complete permission notice or at a |
| 30 | + * minimum a reference to the UPL must be included in all copies or substantial |
| 31 | + * portions of the Software. |
| 32 | + * |
| 33 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 34 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 35 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 36 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 37 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 38 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 39 | + * SOFTWARE. |
| 40 | + */ |
| 41 | +package com.oracle.truffle.js.builtins.math; |
| 42 | + |
| 43 | +import com.oracle.truffle.api.dsl.Cached; |
| 44 | +import com.oracle.truffle.api.dsl.Specialization; |
| 45 | +import com.oracle.truffle.api.exception.AbstractTruffleException; |
| 46 | +import com.oracle.truffle.api.profiles.InlinedBranchProfile; |
| 47 | +import com.oracle.truffle.js.nodes.access.GetIteratorNode; |
| 48 | +import com.oracle.truffle.js.nodes.access.IteratorCloseNode; |
| 49 | +import com.oracle.truffle.js.nodes.access.IteratorStepNode; |
| 50 | +import com.oracle.truffle.js.nodes.access.IteratorValueNode; |
| 51 | +import com.oracle.truffle.js.nodes.access.RequireObjectCoercibleNode; |
| 52 | +import com.oracle.truffle.js.nodes.cast.IsNumberNode; |
| 53 | +import com.oracle.truffle.js.nodes.cast.JSNumberToDoubleNode; |
| 54 | +import com.oracle.truffle.js.nodes.function.JSBuiltin; |
| 55 | +import com.oracle.truffle.js.runtime.Errors; |
| 56 | +import com.oracle.truffle.js.runtime.JSContext; |
| 57 | +import com.oracle.truffle.js.runtime.JSRuntime; |
| 58 | +import com.oracle.truffle.js.runtime.external.XSum.SmallAccumulator; |
| 59 | +import com.oracle.truffle.js.runtime.objects.IteratorRecord; |
| 60 | + |
| 61 | +public abstract class SumPreciseNode extends MathOperation { |
| 62 | + |
| 63 | + public SumPreciseNode(JSContext context, JSBuiltin builtin) { |
| 64 | + super(context, builtin); |
| 65 | + } |
| 66 | + |
| 67 | + @Specialization |
| 68 | + protected double sumPrecise(Object items, |
| 69 | + @Cached RequireObjectCoercibleNode requireObjectCoercible, |
| 70 | + @Cached(inline = true) GetIteratorNode getIteratorNode, |
| 71 | + @Cached IteratorStepNode iteratorStepNode, |
| 72 | + @Cached IteratorValueNode iteratorValueNode, |
| 73 | + @Cached("create(getContext())") IteratorCloseNode iteratorCloseNode, |
| 74 | + @Cached IsNumberNode isNumberNode, |
| 75 | + @Cached JSNumberToDoubleNode toDoubleNode, |
| 76 | + @Cached InlinedBranchProfile errorBranch) { |
| 77 | + requireObjectCoercible.executeVoid(items); |
| 78 | + IteratorRecord iter = getIteratorNode.execute(this, items); |
| 79 | + |
| 80 | + boolean negativeZero = true; |
| 81 | + SmallAccumulator acc = new SmallAccumulator(); |
| 82 | + try { |
| 83 | + while (true) { |
| 84 | + Object next = iteratorStepNode.execute(iter); |
| 85 | + if (next == Boolean.FALSE) { |
| 86 | + break; |
| 87 | + } |
| 88 | + Object nextValue = iteratorValueNode.execute(next); |
| 89 | + if (isNumberNode.execute(this, nextValue)) { |
| 90 | + double doubleValue = toDoubleNode.execute(this, nextValue); |
| 91 | + if (!JSRuntime.isNegativeZero(doubleValue)) { |
| 92 | + negativeZero = false; |
| 93 | + acc.add(doubleValue); |
| 94 | + } |
| 95 | + } else { |
| 96 | + errorBranch.enter(this); |
| 97 | + throw Errors.createTypeErrorNotANumber(nextValue); |
| 98 | + } |
| 99 | + } |
| 100 | + return negativeZero ? -0d : acc.round(); |
| 101 | + } catch (AbstractTruffleException ex) { |
| 102 | + errorBranch.enter(this); |
| 103 | + iteratorCloseNode.executeAbrupt(iter.getIterator()); |
| 104 | + throw ex; |
| 105 | + } |
| 106 | + } |
| 107 | + |
| 108 | +} |
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