| accept(filter_visitor< FeatureT > &v)=0 | mapnik::expression< FeatureT > | [pure virtual] |
| clone() const =0 | mapnik::expression< FeatureT > | [pure virtual] |
| get_value(FeatureT const &feature) const =0 | mapnik::expression< FeatureT > | [pure virtual] |
| to_string() const =0 | mapnik::expression< FeatureT > | [pure virtual] |
| ~expression() | mapnik::expression< FeatureT > | [inline, virtual] |
1.4.7