def _visit_param_list_node(self, node):
"""Go through the method parameters and create a variable
symbol for each one - these are returned as a list.
"""
params = []
for param in node.children:
id_node = param.children[1]
p_type = get_full_type(param.children[0].value,
self._t_env)
# Check if it's an array or a simple identifier
p_name = ''
try:
# Treat it like an array
p_name = id_node.children[0].value
dimensions = id_node.children[1].value
p_type = ArrayType(p_type, dimensions)
params.append(ArraySymbol(p_name, p_type, dimensions))
except AttributeError:
# It's a regular variable
p_name = id_node.value
params.append(VarSymbol(p_name, p_type))
# Check the name does not clash with a type
# or field name
self._check_param_name(p_name)
return params
def _get_method_node_type(self, node):
"""Gets the return type of a particular method."""
type_node = node.children[1]
type_ = 'void'
if type_node.value != 'void':
type_ = get_full_type(type_node.value, self._t_env)
return type_
def _visit_field_dcl_assign_node(self, node):
field_s = None
try:
# For arrays
array_node = node.children[1].children[0]
name = array_node.children[0].value
type_ = get_full_type(node.children[0].value, self._t_env)
dimensions = array_node.children[1].value
type_ = ArrayType(type_, dimensions)
field_s = ArrayFieldSymbol(name, type_, dimensions)
except AttributeError:
# Regular variables
name = node.children[1].children[0].value
type_ = get_full_type(node.children[0].value, self._t_env)
field_s = FieldSymbol(name, type_)
self._field_names.append(name)
field_s.modifiers = node.modifiers
return field_s
def _visit_field_dcl_node(self, node):
"""Helper method for scan_classes_methods which scans properties of the
method, create a symbol for it, and returns it.
"""
field_s = None
try:
# For arrays
name = node.children[1].children[0].value
type_ = get_full_type(node.children[0].value, self._t_env)
dimensions = node.children[1].children[1].value
type_ = ArrayType(type_, dimensions)
field_s = ArrayFieldSymbol(name, type_, dimensions)
except AttributeError:
# Regular variables
name = node.children[1].value
type_ = get_full_type(node.children[0].value, self._t_env)
field_s = FieldSymbol(name, type_)
# Build up list of the names
self._field_names.append(name)
field_s.modifiers = node.modifiers
return field_s
