| /* |
| * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.tools.tree; |
| |
| import sun.tools.java.*; |
| import sun.tools.asm.Assembler; |
| import sun.tools.asm.Label; |
| import java.io.PrintStream; |
| |
| /** |
| * WARNING: The contents of this source file are not part of any |
| * supported API. Code that depends on them does so at its own risk: |
| * they are subject to change or removal without notice. |
| */ |
| public |
| class InlineReturnStatement extends Statement { |
| Expression expr; |
| |
| /** |
| * Constructor |
| */ |
| public InlineReturnStatement(long where, Expression expr) { |
| super(INLINERETURN, where); |
| this.expr = expr; |
| } |
| |
| /** |
| * Get the destination context of a break |
| */ |
| Context getDestination(Context ctx) { |
| for (; ctx != null ; ctx = ctx.prev) { |
| if ((ctx.node != null) && ((ctx.node.op == INLINEMETHOD) || (ctx.node.op == INLINENEWINSTANCE))) { |
| return ctx; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Inline |
| */ |
| public Statement inline(Environment env, Context ctx) { |
| if (expr != null) { |
| expr = expr.inlineValue(env, ctx); |
| } |
| return this; |
| } |
| |
| /** |
| * Create a copy of the statement for method inlining |
| */ |
| public Statement copyInline(Context ctx, boolean valNeeded) { |
| InlineReturnStatement s = (InlineReturnStatement)clone(); |
| if (expr != null) { |
| s.expr = expr.copyInline(ctx); |
| } |
| return s; |
| } |
| |
| /** |
| * The cost of inlining this statement |
| */ |
| public int costInline(int thresh, Environment env, Context ctx) { |
| return 1 + ((expr != null) ? expr.costInline(thresh, env, ctx) : 0); |
| } |
| |
| /** |
| * Code |
| */ |
| public void code(Environment env, Context ctx, Assembler asm) { |
| if (expr != null) { |
| expr.codeValue(env, ctx, asm); |
| } |
| CodeContext destctx = (CodeContext)getDestination(ctx); |
| asm.add(where, opc_goto, destctx.breakLabel); |
| } |
| |
| /** |
| * Print |
| */ |
| public void print(PrintStream out, int indent) { |
| super.print(out, indent); |
| out.print("inline-return"); |
| if (expr != null) { |
| out.print(" "); |
| expr.print(out); |
| } |
| out.print(";"); |
| } |
| } |