001 /* Copyright (c) 2014, Erik Hogeman <Erik.Hogemn@gmail.com> 002 * All rights reserved. 003 * 004 * Redistribution and use in source and binary forms, with or without 005 * modification, are permitted provided that the following conditions are met: 006 * 007 * * Redistributions of source code must retain the above copyright notice, 008 * this list of conditions and the following disclaimer. 009 * * Redistributions in binary form must reproduce the above copyright 010 * notice, this list of conditions and the following disclaimer in the 011 * documentation and/or other materials provided with the distribution. 012 * * Neither the name of the Lund University nor the names of its 013 * contributors may be used to endorse or promote products derived from 014 * this software without specific prior written permission. 015 * 016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 017 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 018 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 019 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 020 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 021 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 022 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 023 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 024 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 025 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 026 * POSSIBILITY OF SUCH DAMAGE. 027 */ 028 aspect LambdaBody { 029 syn lazy boolean LambdaBody.isBlockBody(); 030 syn lazy boolean LambdaBody.isExprBody(); 031 032 eq BlockLambdaBody.isBlockBody() = true; 033 eq BlockLambdaBody.isExprBody() = false; 034 035 eq ExprLambdaBody.isBlockBody() = false; 036 eq ExprLambdaBody.isExprBody() = true; 037 } 038 039 aspect ReturnCompatible { 040 syn lazy boolean BlockLambdaBody.voidCompatible(); 041 syn lazy boolean BlockLambdaBody.valueCompatible(); 042 043 //15.27.2 044 eq BlockLambdaBody.voidCompatible() = noReturnsHasResult(); 045 eq BlockLambdaBody.valueCompatible() = allReturnsHasResult() && !getBlock().canCompleteNormally(); 046 047 coll ArrayList<ReturnStmt> BlockLambdaBody.lambdaReturns() 048 [new ArrayList<ReturnStmt>()] 049 with add 050 root Program; 051 052 ReturnStmt contributes this 053 when (enclosingLambda() != null) && (enclosingLambda().hostType() == hostType()) 054 to BlockLambdaBody.lambdaReturns() 055 for (BlockLambdaBody)enclosingLambda().getLambdaBody(); 056 057 public boolean BlockLambdaBody.noReturnsHasResult() { 058 ArrayList<ReturnStmt> returnList = lambdaReturns(); 059 for (int i = 0; i < returnList.size(); i++) { 060 if (returnList.get(i).hasResult()) { 061 return false; 062 } 063 } 064 return true; 065 } 066 067 public boolean BlockLambdaBody.allReturnsHasResult() { 068 ArrayList<ReturnStmt> returnList = lambdaReturns(); 069 for (int i = 0; i < returnList.size(); i++) { 070 if (!returnList.get(i).hasResult()) { 071 return false; 072 } 073 } 074 return true; 075 } 076 }