/* * 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 java.io.ByteArrayOutputStream;/** * 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. */publicclass Node implements Constants, Cloneable { int op; long where; /** * Constructor */ Node(int op, long where) { this.op = op; this.where = where; } /** * Get the operator */ public int getOp() { return op; } /** * Get where */ public long getWhere() { return where; } /** * Implicit conversions */ public Expression convert(Environment env, Context ctx, Type t, Expression e) { if (e.type.isType(TC_ERROR) || t.isType(TC_ERROR)) { // An error was already reported return e; } if (e.type.equals(t)) { // The types are already the same return e; } try { if (e.fitsType(env, ctx, t)) { return new ConvertExpression(where, t, e); } if (env.explicitCast(e.type, t)) { env.error(where, "explicit.cast.needed", opNames[op], e.type, t); return new ConvertExpression(where, t, e); } } catch (ClassNotFound ee) { env.error(where, "class.not.found", ee.name, opNames[op]); } // The cast is not allowed env.error(where, "incompatible.type", opNames[op], e.type, t); return new ConvertExpression(where, Type.tError, e); } /** * Print */ public void print(PrintStream out) { throw new CompilerError("print"); } /** * Clone this object. */ public Object clone() { try { return super.clone(); } catch (CloneNotSupportedException e) { // this shouldn't happen, since we are Cloneable throw new InternalError(); } } /* * Useful for simple debugging */ public String toString() { ByteArrayOutputStream bos = new ByteArrayOutputStream(); print(new PrintStream(bos)); return bos.toString(); }}
/*
* 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 java.io.ByteArrayOutputStream;
/**
* 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 Node implements Constants, Cloneable {
int op;
long where;
/**
* Constructor
*/
Node(int op, long where) {
this.op = op;
this.where = where;
}
/**
* Get the operator
*/
public int getOp() {
return op;
}
/**
* Get where
*/
public long getWhere() {
return where;
}
/**
* Implicit conversions
*/
public Expression convert(Environment env, Context ctx, Type t, Expression e) {
if (e.type.isType(TC_ERROR) || t.isType(TC_ERROR)) {
// An error was already reported
return e;
}
if (e.type.equals(t)) {
// The types are already the same
return e;
}
try {
if (e.fitsType(env, ctx, t)) {
return new ConvertExpression(where, t, e);
}
if (env.explicitCast(e.type, t)) {
env.error(where, "explicit.cast.needed", opNames[op], e.type, t);
return new ConvertExpression(where, t, e);
}
} catch (ClassNotFound ee) {
env.error(where, "class.not.found", ee.name, opNames[op]);
}
// The cast is not allowed
env.error(where, "incompatible.type", opNames[op], e.type, t);
return new ConvertExpression(where, Type.tError, e);
}
/**
* Print
*/
public void print(PrintStream out) {
throw new CompilerError("print");
}
/**
* Clone this object.
*/
public Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
// this shouldn't happen, since we are Cloneable
throw new InternalError();
}
}
/*
* Useful for simple debugging
*/
public String toString() {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
print(new PrintStream(bos));
return bos.toString();
}
}