how to get the edge between two tables

[yuan-128]

I want to know how to get the edge between two tables.I can get tables from the following code

from p4_hlir.main import HLIR
h = HLIR("simple_router.p4")
h.build()
h.p4_tables

[antoninbas]

You can look at the self.next_ field

p4-hlir/p4_hlir/hlir/p4_tables.py

Lines 35 to 63 in a30208c

	class p4_node(p4_object):
	"""
	TODO: docstring
	"""
	def __init__(self, hlir, name, **kwargs):
	p4_object.__init__(self, hlir, name, **kwargs)
	if not self.valid_obj:
	return
	self.control_flow_parent = None
	self.next_ = OrderedDict()
	# self.prev = OrderedSet()
	self.conditional_barrier = None
	self.dependencies_to = {} # tables to which this table have a dependency
	self.dependencies_for = {} # tables for which this table is a dependency
	# the "default default" next node, according to the original P4 control
	# flow; if a table has not runtime-configured (or compile-time
	# configured) default action and there is a table miss, this node will
	# be executed, as per the P4 spec
	# note that this is also defined for conditions in case an optimization
	# removes a useless condition and base_default_next needs to be updated
	# for upstream nodes
	self.base_default_next = None
	hlir.p4_nodes[name] = self

p4_table inherits from p4_node

Note that this repo is not maintained any more. I recommend transitioning to the p4lang/p4c compiler, which is in active development.