def visit_HdlOp(self, op):
"""
:type o: HdlOp
"""
w = self.out.write
o = op.fn
if o == HdlOpType.RISING:
self._visit_operand(op.ops[0], 0, op, False, False)
w(".pos()")
elif o == HdlOpType.FALLING:
self._visit_operand(op.ops[0], 0, op, False, False)
w(".neg()")
elif o == HdlOpType.PARAMETRIZATION:
self._visit_operand(op.ops[0], 0, op, False, False)
w("<")
for last, _o in iter_with_last(op.ops[1:]):
self.visit_iHdlExpr(_o)
if not last:
w(", ")
w(">")
else:
ToHdlCommon.visit_HdlOp(self, op)
return True
def visit_HdlOp(self, o):
"""
:type o: HdlOp
"""
fn = o.ops[0]
if fn == HdlValueId("assert"):
self.visit_assert(o.ops[1:])
return
elif fn == HdlValueId("report"):
self.visit_report(o.ops[1:])
return
w = self.out.write
op = o.fn
if op == HdlOpType.RISING:
w("RISING_EDGE(")
self.visit_iHdlExpr(o.ops[0])
w(")")
elif op == HdlOpType.FALLING:
w("FALLING_EDGE(")
self.visit_iHdlExpr(o.ops[0])
w(")")
elif op == HdlOpType.INDEX or op == HdlOpType.CALL:
self._visit_operand(o.ops[0], 0, o, False, False)
w("(")
for isLast, (o_i, _o) in iter_with_last(enumerate(o.ops[1:])):
self._visit_operand(_o, o_i + 1, o, False, True)
if not isLast:
w(", ")
w(")")
elif op == HdlOpType.TERNARY:
has_3_ops = len(o.ops) == 3
if has_3_ops:
cond, o0, o1 = o.ops
else:
cond, o0 = o.ops
self._visit_operand(o0, 1, o, True, False)
w(" WHEN ")
self._visit_operand(cond, 0, o, True, False)
if has_3_ops:
if isinstance(o1, HdlOp) and o1.fn == HdlOpType.TERNARY:
w(" ELSE\n")
self.visit_iHdlExpr(o1) # must not have parenthesis
else:
w(" ELSE ")
self._visit_operand(o1, 2, o, False, False)
elif op == HdlOpType.APOSTROPHE:
self._visit_operand(o.ops[0], 0, o, True, False)
w("'")
args = o.ops[1]
if isinstance(args, list):
self.visit_iHdlExpr(args)
elif isinstance(args, HdlValueId):
# normal attribute
self.visit_iHdlExpr(args)
else:
w("(")
self._visit_operand(args, 0, o, False, True)
w(")")
elif op == HdlOpType.ABS:
w("ABS(")
self.visit_iHdlExpr(o.ops[0])
w(")")
elif op == HdlOpType.DEFINE_RESOLVER:
assert self.in_typedef
self.visit_iHdlExpr(o.ops[0])
w(" ")
self.visit_iHdlExpr(o.ops[1])
else:
return ToHdlCommon.visit_HdlOp(self, o)