Method index

src/tools/ecode/plugins/lsp/lspclientplugin.cpp:72–81

	size_t columnCount( const ModelIndex& ) const override { return 1; }

	ModelIndex index( int row, int column, const ModelIndex& parent ) const override {
		if ( !parent.isValid() )
			return createIndex( row, column, &mInfo[row], -1 );
		if ( parent.internalData() ) {
			LSPSymbolInformation* parentNode =
				static_cast<LSPSymbolInformation*>( parent.internalData() );
			return createIndex( row, column, &parentNode->children[row], parent.row() );
		}
		return {};
	}

	ModelIndex parentIndex( const ModelIndex& index ) const override {
		if ( !index.isValid() || index.internalId() == -1 )