on of the subset of { <code>DERIVATION_SUBSTITUTION, DERIVATION_EXTENSION, DERIVATION_RESTRICTION</code> } corresponding to substitutions disallowed by this <code><a class="el" href="classXSElementDeclaration.html">XSElementDeclaration</a></code> or <code>DERIVATION_NONE</code>. 
<p>

<p>References <a class="el" href="XSElementDeclaration_8hpp-source.html#l00244">fDisallowedSubstitutions</a>.</p>

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