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| 1 | +/* |
| 2 | + * Copyright (c) 2018, Oracle and/or its affiliates. |
| 3 | + * |
| 4 | + * The Universal Permissive License (UPL), Version 1.0 |
| 5 | + * |
| 6 | + * Subject to the condition set forth below, permission is hereby granted to any |
| 7 | + * person obtaining a copy of this software, associated documentation and/or data |
| 8 | + * (collectively the "Software"), free of charge and under any and all copyright |
| 9 | + * rights in the Software, and any and all patent rights owned or freely |
| 10 | + * licensable by each licensor hereunder covering either (i) the unmodified |
| 11 | + * Software as contributed to or provided by such licensor, or (ii) the Larger |
| 12 | + * Works (as defined below), to deal in both |
| 13 | + * |
| 14 | + * (a) the Software, and |
| 15 | + * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if |
| 16 | + * one is included with the Software (each a "Larger Work" to which the |
| 17 | + * Software is contributed by such licensors), |
| 18 | + * |
| 19 | + * without restriction, including without limitation the rights to copy, create |
| 20 | + * derivative works of, display, perform, and distribute the Software and make, |
| 21 | + * use, sell, offer for sale, import, export, have made, and have sold the |
| 22 | + * Software and the Larger Work(s), and to sublicense the foregoing rights on |
| 23 | + * either these or other terms. |
| 24 | + * |
| 25 | + * This license is subject to the following condition: |
| 26 | + * |
| 27 | + * The above copyright notice and either this complete permission notice or at a |
| 28 | + * minimum a reference to the UPL must be included in all copies or substantial |
| 29 | + * portions of the Software. |
| 30 | + * |
| 31 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 32 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 33 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 34 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 35 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 36 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 37 | + * SOFTWARE. |
| 38 | + */ |
| 39 | +package com.oracle.graal.python.builtins.objects.cpyobject; |
| 40 | + |
| 41 | +import java.nio.charset.Charset; |
| 42 | +import java.nio.charset.CharsetEncoder; |
| 43 | + |
| 44 | +import com.oracle.graal.python.builtins.modules.TruffleCextBuiltins.ToSulongNode; |
| 45 | +import com.oracle.truffle.api.CompilerDirectives; |
| 46 | +import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; |
| 47 | +import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary; |
| 48 | +import com.oracle.truffle.api.interop.MessageResolution; |
| 49 | +import com.oracle.truffle.api.interop.Resolve; |
| 50 | +import com.oracle.truffle.api.interop.UnknownIdentifierException; |
| 51 | +import com.oracle.truffle.api.nodes.Node; |
| 52 | + |
| 53 | +@MessageResolution(receiverType = PyUnicodeState.class) |
| 54 | +public class PyUnicodeStateMR { |
| 55 | + |
| 56 | + @Resolve(message = "READ") |
| 57 | + abstract static class ReadNode extends Node { |
| 58 | + @Child private ToSulongNode toSulongNode; |
| 59 | + |
| 60 | + public Object access(PyUnicodeState object, String key) { |
| 61 | + switch (key) { |
| 62 | + case NativeMemberNames.UNICODE_STATE_INTERNED: |
| 63 | + return getToSulongNode().execute(false); |
| 64 | + case NativeMemberNames.UNICODE_STATE_KIND: |
| 65 | + return getToSulongNode().execute(0); |
| 66 | + case NativeMemberNames.UNICODE_STATE_COMPACT: |
| 67 | + return getToSulongNode().execute(false); |
| 68 | + case NativeMemberNames.UNICODE_STATE_ASCII: |
| 69 | + return getToSulongNode().execute(onlyAscii(object.getDelegate().getValue())); |
| 70 | + case NativeMemberNames.UNICODE_STATE_READY: |
| 71 | + return getToSulongNode().execute(true); |
| 72 | + } |
| 73 | + throw UnknownIdentifierException.raise(key); |
| 74 | + } |
| 75 | + |
| 76 | + @CompilationFinal private CharsetEncoder asciiEncoder; |
| 77 | + |
| 78 | + public boolean isPureAscii(String v) { |
| 79 | + return asciiEncoder.canEncode(v); |
| 80 | + } |
| 81 | + |
| 82 | + private boolean onlyAscii(String value) { |
| 83 | + if (asciiEncoder == null) { |
| 84 | + CompilerDirectives.transferToInterpreterAndInvalidate(); |
| 85 | + asciiEncoder = Charset.forName("US-ASCII").newEncoder(); |
| 86 | + } |
| 87 | + return doCheck(value, asciiEncoder); |
| 88 | + } |
| 89 | + |
| 90 | + @TruffleBoundary |
| 91 | + private static boolean doCheck(String value, CharsetEncoder asciiEncoder) { |
| 92 | + return asciiEncoder.canEncode(value); |
| 93 | + } |
| 94 | + |
| 95 | + private ToSulongNode getToSulongNode() { |
| 96 | + if (toSulongNode == null) { |
| 97 | + CompilerDirectives.transferToInterpreterAndInvalidate(); |
| 98 | + toSulongNode = insert(ToSulongNode.create()); |
| 99 | + } |
| 100 | + return toSulongNode; |
| 101 | + } |
| 102 | + } |
| 103 | +} |
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