GetDatasetsColumnUsage

vegafusion_core::expression::column_usage

Trait GetDatasetsColumnUsage 

Source 
pub trait GetDatasetsColumnUsage {
    // Required method
    fn datasets_column_usage(
        &self,
        datum_var: &Option<ScopedVariable>,
        usage_scope: &[u32],
        task_scope: &TaskScope,
        vl_selection_fields: &VlSelectionFields,
    ) -> DatasetsColumnUsage;
}

Required Methods§

Source

fn datasets_column_usage( &self, datum_var: &Option<ScopedVariable>, usage_scope: &[u32], task_scope: &TaskScope, vl_selection_fields: &VlSelectionFields, ) -> DatasetsColumnUsage

Implementors§