def p_connection_defn(t):
'''connection_defn : connection connector_ref ID LPAREN from ID DOT ID COMMA to ID DOT ID RPAREN SEMI
| connection connector_ref ID LPAREN from ID COMMA to ID DOT ID RPAREN SEMI
| connection connector_ref ID LPAREN from ID DOT ID COMMA to ID RPAREN SEMI'''
connector = t[2]
name = t[3]
if len(t) == 16:
from_instance = Reference(t[6], Instance, filename=t.lexer.filename, \
lineno=t.lexer.lineno)
from_interface = Reference(t[8], Interface, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
to_instance = Reference(t[11], Instance, filename=t.lexer.filename, \
lineno=t.lexer.lineno)
to_interface = Reference(t[13], Interface, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
else:
assert len(t) == 14
# placeholder refering to 'current instance of this component'
# required for hierarchical components
virtual_instance = Instance(Component(),
'__virtual__',
filename=t.lexer.filename,
lineno=t.lexer.lineno)
if t[7] == ',':
from_instance = virtual_instance
from_interface = Reference(t[6], Interface, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
to_instance = Reference(t[9], Instance, filename=t.lexer.filename, \
lineno=t.lexer.lineno)
to_interface = Reference(t[11], Interface, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
else:
assert t[9] == ','
from_instance = Reference(t[6], Instance, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
from_interface = Reference(t[8], Interface, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
to_instance = virtual_instance
to_interface = Reference(t[11], Interface, \
filename=t.lexer.filename, lineno=t.lexer.lineno)
t[0] = Connection(connector, name, from_instance, from_interface, \
to_instance, to_interface, filename=t.lexer.filename, \
lineno=t.lexer.lineno)
def _lift_instance_defn(location, component_ref, id):
return Instance(component_ref, id, location)
def p_instance_defn(t):
'''instance_defn : component component_ref ID SEMI'''
assert isinstance(t[2], Component) or isinstance(t[2], Reference)
t[0] = Instance(type=t[2], name=t[3], filename=t.lexer.filename, \
lineno=t.lexer.lineno)