mapnik/mapnik — Issue #1002: Optimize compilation of expressions
Author: springmeyer
Created: 2012-01-04 18:07:27+00:00
State: open
Labels: utree

Currently all expressions are evaluated at runtime. But, as we plan to move to everything as expressions in #828, we need to ensure top performance. For example, if a polygon fill color moves to an expression we can then do: `fill="[color]"`, which must be evaluated at runtime. But `fill="rgb(100,100,255)"` should be evaluated at parse time and we should allow something like `fill="rgb(100,100,[blue])"` to be evaluated at runtime.