/*
* 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(";");
}
}