use standard node dispatch mechanism instead of explicit type tests in transform
use standard node dispatch mechanism instead of explicit type tests in transform

scoder/cython,c-blake/cython,da-woods/cython,cython/cython,scoder/cython,c-blake/cython,fabianrost84/cython,fabianrost84/cython,ChristopherHogan/cython,da-woods/cython,fabianrost84/cython,c-blake/cython,ChristopherHogan/cython,c-blake/cython,c-blake/cython,scoder/cython,fabianrost84/cython,cython/cython,da-woods/cython,cython/cython,cython/cython,da-woods/cython,scoder/cython,fabianrost84/cython,ChristopherHogan/cython