| /* |
| * 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 java.io.PrintStream; |
| import sun.tools.asm.Assembler; |
| import java.util.Hashtable; |
| |
| /** |
| * 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 DeclarationStatement extends Statement { |
| int mod; |
| Expression type; |
| Statement args[]; |
| |
| /** |
| * Constructor |
| */ |
| public DeclarationStatement(long where, int mod, Expression type, Statement args[]) { |
| super(DECLARATION, where); |
| this.mod = mod; |
| this.type = type; |
| this.args = args; |
| } |
| |
| /** |
| * Check statement |
| * Report an error unless the call is checkBlockStatement. |
| */ |
| Vset check(Environment env, Context ctx, Vset vset, Hashtable exp) { |
| env.error(where, "invalid.decl"); |
| return checkBlockStatement(env, ctx, vset, exp); |
| } |
| Vset checkBlockStatement(Environment env, Context ctx, Vset vset, Hashtable exp) { |
| if (labels != null) { |
| env.error(where, "declaration.with.label", labels[0]); |
| } |
| vset = reach(env, vset); |
| Type t = type.toType(env, ctx); |
| |
| for (int i = 0 ; i < args.length ; i++) { |
| vset = args[i].checkDeclaration(env, ctx, vset, mod, t, exp); |
| } |
| |
| return vset; |
| } |
| |
| /** |
| * Inline |
| */ |
| public Statement inline(Environment env, Context ctx) { |
| int n = 0; |
| for (int i = 0 ; i < args.length ; i++) { |
| if ((args[i] = args[i].inline(env, ctx)) != null) { |
| n++; |
| } |
| } |
| return (n == 0) ? null : this; |
| } |
| |
| /** |
| * Create a copy of the statement for method inlining |
| */ |
| public Statement copyInline(Context ctx, boolean valNeeded) { |
| DeclarationStatement s = (DeclarationStatement)clone(); |
| if (type != null) { |
| s.type = type.copyInline(ctx); |
| } |
| s.args = new Statement[args.length]; |
| for (int i = 0; i < args.length; i++){ |
| if (args[i] != null){ |
| s.args[i] = args[i].copyInline(ctx, valNeeded); |
| } |
| } |
| return s; |
| } |
| |
| /** |
| * The cost of inlining this statement |
| */ |
| public int costInline(int thresh, Environment env, Context ctx) { |
| int cost = 1; |
| for (int i = 0; i < args.length; i++){ |
| if (args[i] != null){ |
| cost += args[i].costInline(thresh, env, ctx); |
| } |
| } |
| return cost; |
| } |
| |
| |
| /** |
| * Code |
| */ |
| public void code(Environment env, Context ctx, Assembler asm) { |
| for (int i = 0 ; i < args.length ; i++) { |
| if (args[i] != null) { |
| args[i].code(env, ctx, asm); |
| } |
| } |
| } |
| |
| /** |
| * Print |
| */ |
| public void print(PrintStream out, int indent) { |
| out.print("declare "); |
| super.print(out, indent); |
| type.print(out); |
| out.print(" "); |
| for (int i = 0 ; i < args.length ; i++) { |
| if (i > 0) { |
| out.print(", "); |
| } |
| if (args[i] != null) { |
| args[i].print(out); |
| } else { |
| out.print("<empty>"); |
| } |
| } |
| out.print(";"); |
| } |
| } |