Check if a call defines an Enum. Example: A = enum.Enum('A', 'foo bar') is equivalent to: class A(enum.Enum): foo = 1 bar = 2
(
self, node: Expression, var_name: str, is_func_scope: bool
)
| 81 | return True |
| 82 | |
| 83 | def check_enum_call( |
| 84 | self, node: Expression, var_name: str, is_func_scope: bool |
| 85 | ) -> TypeInfo | None: |
| 86 | """Check if a call defines an Enum. |
| 87 | |
| 88 | Example: |
| 89 | |
| 90 | A = enum.Enum('A', 'foo bar') |
| 91 | |
| 92 | is equivalent to: |
| 93 | |
| 94 | class A(enum.Enum): |
| 95 | foo = 1 |
| 96 | bar = 2 |
| 97 | """ |
| 98 | if not isinstance(node, CallExpr): |
| 99 | return None |
| 100 | call = node |
| 101 | callee = call.callee |
| 102 | if not isinstance(callee, RefExpr): |
| 103 | return None |
| 104 | fullname = callee.fullname |
| 105 | if fullname not in ENUM_BASES: |
| 106 | return None |
| 107 | |
| 108 | new_class_name, items, values, ok = self.parse_enum_call_args( |
| 109 | call, fullname.split(".")[-1] |
| 110 | ) |
| 111 | if not ok: |
| 112 | # Error. Construct dummy return value. |
| 113 | name = var_name |
| 114 | if is_func_scope: |
| 115 | name += "@" + str(call.line) |
| 116 | info = self.build_enum_call_typeinfo(name, [], fullname, node.line) |
| 117 | else: |
| 118 | if new_class_name != var_name: |
| 119 | msg = f'String argument 1 "{new_class_name}" to {fullname}(...) does not match variable name "{var_name}"' |
| 120 | self.fail(msg, call) |
| 121 | |
| 122 | name = cast(StrExpr, call.args[0]).value |
| 123 | if name != var_name or is_func_scope: |
| 124 | # Give it a unique name derived from the line number. |
| 125 | name += "@" + str(call.line) |
| 126 | info = self.build_enum_call_typeinfo(name, items, fullname, call.line) |
| 127 | # Store generated TypeInfo under both names, see semanal_namedtuple for more details. |
| 128 | if name != var_name or is_func_scope: |
| 129 | self.api.add_symbol_skip_local(name, info) |
| 130 | call.analyzed = EnumCallExpr(info, items, values) |
| 131 | call.analyzed.set_line(call) |
| 132 | info.line = node.line |
| 133 | return info |
| 134 | |
| 135 | def build_enum_call_typeinfo( |
| 136 | self, name: str, items: list[str], fullname: str, line: int |
no test coverage detected