jjg@309: /*
jjg@309:  * Copyright 2003-2008 Sun Microsystems, Inc.  All Rights Reserved.
jjg@309:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@309:  *
jjg@309:  * This code is free software; you can redistribute it and/or modify it
jjg@309:  * under the terms of the GNU General Public License version 2 only, as
jjg@309:  * published by the Free Software Foundation.  Sun designates this
jjg@309:  * particular file as subject to the "Classpath" exception as provided
jjg@309:  * by Sun in the LICENSE file that accompanied this code.
jjg@309:  *
jjg@309:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@309:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@309:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@309:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@309:  * accompanied this code).
jjg@309:  *
jjg@309:  * You should have received a copy of the GNU General Public License version
jjg@309:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@309:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@309:  *
jjg@309:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@309:  * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@309:  * have any questions.
jjg@309:  */
jjg@309: 
jjg@309: package com.sun.tools.javac.code;
jjg@309: 
jjg@309: import com.sun.tools.javac.util.*;
jjg@309: 
jjg@309: /** A type annotation position.
jjg@309: *
jjg@309: *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
jjg@309: *  you write code that depends on this, you do so at your own risk.
jjg@309: *  This code and its internal interfaces are subject to change or
jjg@309: *  deletion without notice.</b>
jjg@309: */
jjg@309: public class TypeAnnotationPosition {
jjg@309: 
jjg@309:     public TargetType type = TargetType.UNKNOWN;
jjg@309: 
jjg@309:     // For generic/array types.
jjg@309:     public List<Integer> location = List.nil();
jjg@309: 
jjg@309:     // Tree position.
jjg@309:     public int pos = -1;
jjg@309: 
jjg@309:     // For typecasts, type tests, new (and locals, as start_pc).
jjg@309:     public int offset = -1;
jjg@309: 
jjg@309:     // For locals. arrays same length
jjg@309:     public int[] lvarOffset = new int[] { -1 };
jjg@309:     public int[] lvarLength = new int[] { -1 };
jjg@309:     public int[] lvarIndex = new int[] { -1 };
jjg@309: 
jjg@309:     // For type parameter bound
jjg@309:     public int bound_index = -1;
jjg@309: 
jjg@309:     // For type parameter and method parameter
jjg@309:     public int parameter_index = -1;
jjg@309: 
jjg@309:     // For class extends, implements, and throws classes
jjg@309:     public int type_index = -2;
jjg@309: 
jjg@309:     // For wildcards
jjg@309:     public TypeAnnotationPosition wildcard_position = null;
jjg@309: 
jjg@309:     @Override
jjg@309:     public String toString() {
jjg@309:         StringBuilder sb = new StringBuilder();
jjg@309:         sb.append('[');
jjg@309:         sb.append(type);
jjg@309: 
jjg@309:         switch (type) {
jjg@309:         // type case
jjg@309:         case TYPECAST:
jjg@309:         case TYPECAST_GENERIC_OR_ARRAY:
jjg@309:             // object creation
jjg@309:         case INSTANCEOF:
jjg@309:         case INSTANCEOF_GENERIC_OR_ARRAY:
jjg@309:             // new expression
jjg@309:         case NEW:
jjg@309:         case NEW_GENERIC_OR_ARRAY:
jjg@309:         case NEW_TYPE_ARGUMENT:
jjg@309:         case NEW_TYPE_ARGUMENT_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", offset = ");
jjg@309:             sb.append(offset);
jjg@309:             break;
jjg@309:             // local variable
jjg@309:         case LOCAL_VARIABLE:
jjg@309:         case LOCAL_VARIABLE_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", {");
jjg@309:             for (int i = 0; i < lvarOffset.length; ++i) {
jjg@309:                 if (i != 0) sb.append("; ");
jjg@309:                 sb.append(", start_pc = ");
jjg@309:                 sb.append(lvarOffset[i]);
jjg@309:                 sb.append(", length = ");
jjg@309:                 sb.append(lvarLength[i]);
jjg@309:                 sb.append(", index = ");
jjg@309:                 sb.append(lvarIndex[i]);
jjg@309:             }
jjg@309:             sb.append("}");
jjg@309:             break;
jjg@309:             // method receiver
jjg@309:         case METHOD_RECEIVER:
jjg@309:             // Do nothing
jjg@309:             break;
jjg@309:             // type parameters
jjg@309:         case CLASS_TYPE_PARAMETER:
jjg@309:         case METHOD_TYPE_PARAMETER:
jjg@309:             sb.append(", param_index = ");
jjg@309:             sb.append(parameter_index);
jjg@309:             break;
jjg@309:             // type parameters bound
jjg@309:         case CLASS_TYPE_PARAMETER_BOUND:
jjg@309:         case CLASS_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY:
jjg@309:         case METHOD_TYPE_PARAMETER_BOUND:
jjg@309:         case METHOD_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", param_index = ");
jjg@309:             sb.append(parameter_index);
jjg@309:             sb.append(", bound_index = ");
jjg@309:             sb.append(bound_index);
jjg@309:             break;
jjg@309:             // wildcard
jjg@309:         case WILDCARD_BOUND:
jjg@309:         case WILDCARD_BOUND_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", wild_card = ");
jjg@309:             sb.append(wildcard_position);
jjg@309:             break;
jjg@309:             // Class extends and implements clauses
jjg@309:         case CLASS_EXTENDS:
jjg@309:         case CLASS_EXTENDS_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", type_index = ");
jjg@309:             sb.append(type_index);
jjg@309:             break;
jjg@309:             // throws
jjg@309:         case THROWS:
jjg@309:             sb.append(", type_index = ");
jjg@309:             sb.append(type_index);
jjg@309:             break;
jjg@309:         case CLASS_LITERAL:
jjg@309:             sb.append(", offset = ");
jjg@309:             sb.append(offset);
jjg@309:             break;
jjg@309:             // method parameter: not specified
jjg@309:         case METHOD_PARAMETER_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", param_index = ");
jjg@309:             sb.append(parameter_index);
jjg@309:             break;
jjg@309:             // method type argument: wasn't specified
jjg@309:         case METHOD_TYPE_ARGUMENT:
jjg@309:         case METHOD_TYPE_ARGUMENT_GENERIC_OR_ARRAY:
jjg@309:             sb.append(", offset = ");
jjg@309:             sb.append(offset);
jjg@309:             sb.append(", type_index = ");
jjg@309:             sb.append(type_index);
jjg@309:             break;
jjg@309:             // We don't need to worry abut these
jjg@309:         case METHOD_RETURN_GENERIC_OR_ARRAY:
jjg@309:         case FIELD_GENERIC_OR_ARRAY:
jjg@309:             break;
jjg@309:         case UNKNOWN:
jjg@309:             break;
jjg@309:         default:
jjg@309:             //                throw new AssertionError("unknown type: " + type);
jjg@309:         }
jjg@309: 
jjg@309:         // Append location data for generics/arrays.
jjg@309:         if (type.hasLocation()) {
jjg@309:             sb.append(", location = (");
jjg@309:             sb.append(location);
jjg@309:             sb.append(")");
jjg@309:         }
jjg@309: 
jjg@309:         sb.append(", pos = ");
jjg@309:         sb.append(pos);
jjg@309: 
jjg@309:         sb.append(']');
jjg@309:         return sb.toString();
jjg@309:     }
jjg@309: }