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c_client: Extract _c_get_field_mapping_for_expr()

This commit is contained in:
Povilas Kanapickas 2021-07-30 22:58:46 +03:00
parent 068af21cb3
commit bdc3f21a52
1 changed files with 19 additions and 7 deletions
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26
src/c_client.py
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@ -966,18 +966,15 @@ def _c_get_additional_type_params(type):
param_fields, wire_fields, params = get_serialize_params('sizeof', type) param_fields, wire_fields, params = get_serialize_params('sizeof', type)
return params[1:] return params[1:]
def _c_serialize_helper_list_field(context, self, field,
code_lines, temp_vars, def _c_get_field_mapping_for_expr(self, expr, prefix):
space, prefix):
""" """
helper function to cope with lists of variable length helper function to get field mapping of a particular expression.
""" """
expr = field.type.expr
prefix_str = _c_helper_fieldaccess_expr(prefix)
param_fields, wire_fields, params = get_serialize_params('sizeof', self) param_fields, wire_fields, params = get_serialize_params('sizeof', self)
param_names = [p[2] for p in params] param_names = [p[2] for p in params]
expr_fields_names = get_expr_field_names(field.type.expr) expr_fields_names = get_expr_field_names(expr)
resolved = [x for x in expr_fields_names if x in param_names] resolved = [x for x in expr_fields_names if x in param_names]
unresolved = [x for x in expr_fields_names if x not in param_names] unresolved = [x for x in expr_fields_names if x not in param_names]
@ -996,6 +993,21 @@ def _c_serialize_helper_list_field(context, self, field,
unresolved = [x for x in unresolved if x not in field_mapping] unresolved = [x for x in unresolved if x not in field_mapping]
if len(unresolved)>0: if len(unresolved)>0:
raise Exception('could not resolve the length fields required for list %s' % field.c_field_name) raise Exception('could not resolve the length fields required for list %s' % field.c_field_name)
return field_mapping
def _c_serialize_helper_list_field(context, self, field,
code_lines, temp_vars,
space, prefix):
"""
helper function to cope with lists of variable length
"""
expr = field.type.expr
prefix_str = _c_helper_fieldaccess_expr(prefix)
field_mapping = _c_get_field_mapping_for_expr(self, field.type.expr, prefix)
if expr.op == 'calculate_len': if expr.op == 'calculate_len':
list_length = field.type.expr.lenfield_name list_length = field.type.expr.lenfield_name
else: else: