Mercurial > hg > truffle
view truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/expression/SLFunctionLiteralNode.java @ 22157:dc83cc1f94f2
Using fully qualified imports
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
---|---|
date | Wed, 16 Sep 2015 11:33:22 +0200 |
parents | a7ca9e9a1d51 |
children |
line wrap: on
line source
/* * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * The Universal Permissive License (UPL), Version 1.0 * * Subject to the condition set forth below, permission is hereby granted to any * person obtaining a copy of this software, associated documentation and/or * data (collectively the "Software"), free of charge and under any and all * copyright rights in the Software, and any and all patent rights owned or * freely licensable by each licensor hereunder covering either (i) the * unmodified Software as contributed to or provided by such licensor, or (ii) * the Larger Works (as defined below), to deal in both * * (a) the Software, and * * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if * one is included with the Software each a "Larger Work" to which the Software * is contributed by such licensors), * * without restriction, including without limitation the rights to copy, create * derivative works of, display, perform, and distribute the Software and make, * use, sell, offer for sale, import, export, have made, and have sold the * Software and the Larger Work(s), and to sublicense the foregoing rights on * either these or other terms. * * This license is subject to the following condition: * * The above copyright notice and either this complete permission notice or at a * minimum a reference to the UPL must be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.oracle.truffle.sl.nodes.expression; import com.oracle.truffle.api.CallTarget; import com.oracle.truffle.api.CompilerDirectives; import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; import com.oracle.truffle.api.frame.VirtualFrame; import com.oracle.truffle.api.nodes.Node; import com.oracle.truffle.api.nodes.NodeInfo; import com.oracle.truffle.api.source.SourceSection; import com.oracle.truffle.sl.SLLanguage; import com.oracle.truffle.sl.nodes.SLExpressionNode; import com.oracle.truffle.sl.runtime.SLContext; import com.oracle.truffle.sl.runtime.SLFunction; import com.oracle.truffle.sl.runtime.SLFunctionRegistry; /** * Constant literal for a {@link SLFunction function} value, created when a function name occurs as * a literal in SL source code. Note that function redefinition can change the {@link CallTarget * call target} that is executed when calling the function, but the {@link SLFunction} for a name * never changes. This is guaranteed by the {@link SLFunctionRegistry}. */ @NodeInfo(shortName = "func") public final class SLFunctionLiteralNode extends SLExpressionNode { private final String value; private final Node contextNode; @CompilationFinal private SLFunction cachedFunction; @CompilationFinal private SLContext cachedContext; public SLFunctionLiteralNode(SourceSection src, String value) { super(src); this.value = value; contextNode = SLLanguage.INSTANCE.createFindContextNode0(); } @Override public SLFunction executeGeneric(VirtualFrame frame) { SLContext context = SLLanguage.INSTANCE.findContext0(contextNode); if (context != cachedContext) { CompilerDirectives.transferToInterpreterAndInvalidate(); this.cachedContext = context; this.cachedFunction = context.getFunctionRegistry().lookup(value); } return cachedFunction; } }