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	/*
	* 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(";");
	}
	}

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