ISourceType sourceType = sourceTypes[0];
while (sourceType.getEnclosingType() != null)
sourceType = sourceType.getEnclosingType();
if (sourceType instanceof SourceTypeElementInfo) {
// get source
SourceTypeElementInfo elementInfo = (SourceTypeElementInfo) sourceType;
IType type = elementInfo.getHandle();
ICompilationUnit sourceUnit = (ICompilationUnit) type.getCompilationUnit();
accept(sourceUnit, accessRestriction);
} else {
CompilationResult result = new CompilationResult(sourceType.getFileName(), 1, 1, 0);
CompilationUnitDeclaration unit =