Example usage for org.eclipse.jdt.internal.compiler.classfmt ClassFileReader hasStructuralChanges

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.compiler.classfmt ClassFileReader hasStructuralChanges.

Prototype

public boolean hasStructuralChanges(byte[] newBytes) 

Source Link

Document

Check if the receiver has structural changes compare to the byte array in argument.

Usage

From source file:com.google.gwt.dev.javac.Dependencies.java

License:Apache License

private boolean hasStructuralChanges(CompiledClass mine, CompiledClass theirs) {
    try {/*from ww  w.  j a v a 2  s .  c  om*/
        ClassFileReader cfr = new ClassFileReader(theirs.getBytes(), null);
        return cfr.hasStructuralChanges(mine.getBytes());
    } catch (ClassFormatException e) {
        throw new RuntimeException("Unexpected error reading compiled class", e);
    }
}

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From source file:net.sf.j2s.core.builder.IncrementalImageBuilder.java

License:Open Source License

protected boolean writeClassFileCheck(IFile file, String fileName, byte[] newBytes) throws CoreException {
    try {/*from   w w w . j a v  a2s . co m*/
        byte[] oldBytes = Util.getResourceContentsAsByteArray(file);
        notEqual: if (newBytes.length == oldBytes.length) {
            for (int i = newBytes.length; --i >= 0;)
                if (newBytes[i] != oldBytes[i])
                    break notEqual;
            return false; // bytes are identical so skip them
        }
        URI location = file.getLocationURI();
        if (location == null)
            return false; // unable to determine location of this class file
        String filePath = location.getSchemeSpecificPart();
        ClassFileReader reader = new ClassFileReader(oldBytes, filePath.toCharArray());
        // ignore local types since they're only visible inside a single method
        if (!(reader.isLocal() || reader.isAnonymous()) && reader.hasStructuralChanges(newBytes)) {
            if (JavaBuilder.DEBUG)
                System.out.println("Type has structural changes " + fileName); //$NON-NLS-1$
            addDependentsOf(new Path(fileName), true);
            this.newState.wasStructurallyChanged(fileName);
        }
    } catch (ClassFormatException e) {
        addDependentsOf(new Path(fileName), true);
        this.newState.wasStructurallyChanged(fileName);
    }
    return true;
}

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