hpcc-systems/HPCC-Platform — pull request #2591 by rengolin (2012-06-19 09:58:24+00:00)
Title: Add ExpressionDumper basic logic

This commit implements the base of expression
dumpers logic with two implementations: tree
dumper and IR dumper.

The tree dumper is a simple transformer that
analyses the tree and dump basic information
of the nodes with depth limit. Main use is
while debugging simple expressions.

The IR dumper is a more complete dumper, with
the intent to print enough information to
make it possible to read it back and re-create
the original expression from it.