/*
* Copyright 2013, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jf.dexlib2.immutable.util;
import org.jf.dexlib2.immutable.ImmutableMethodParameter;
import javax.annotation.Nonnull;
import java.util.Iterator;
public class ParamUtil {
private static int findTypeEnd(@Nonnull String str, int index) {
char c = str.charAt(index);
switch (c) {
case 'Z':
case 'B':
case 'S':
case 'C':
case 'I':
case 'J':
case 'F':
case 'D':
return index+1;
case 'L':
while (str.charAt(index++) != ';') {}
return index;
case '[':
while (str.charAt(index++) != '[') {}
return findTypeEnd(str, index);
default:
throw new IllegalArgumentException(String.format("Param string \"%s\" contains invalid type prefix: %s",
str, Character.toString(c)));
}
}
@Nonnull
public static Iterable<ImmutableMethodParameter> parseParamString(@Nonnull final String params) {
return new Iterable<ImmutableMethodParameter>() {
@Override public Iterator<ImmutableMethodParameter> iterator() {
return new Iterator<ImmutableMethodParameter>() {
private int index = 0;
@Override public boolean hasNext() {
return index < params.length();
}
@Override public ImmutableMethodParameter next() {
int end = findTypeEnd(params, index);
String ret = params.substring(index, end);
index = end;
return new ImmutableMethodParameter(ret, null, null);
}
@Override public void remove() {
throw new UnsupportedOperationException();
}
};
}
};
}
}