def __init__(self, show_ids: bool = False) -> None:
self.show_ids = show_ids
self.id_mapper = None # type: Optional[IdMapper]
if show_ids:
self.id_mapper = IdMapper()
def __init__(self, show_ids: bool = False) -> None:
self.show_ids = show_ids
self.id_mapper = None # type: Optional[IdMapper]
if show_ids:
self.id_mapper = IdMapper()
class StrConv(NodeVisitor[str]):
"""Visitor for converting a node to a human-readable string.
For example, an MypyFile node from program '1' is converted into
something like this:
MypyFile:1(
fnam
ExpressionStmt:1(
IntExpr(1)))
"""
def __init__(self, show_ids: bool = False) -> None:
self.show_ids = show_ids
self.id_mapper = None # type: Optional[IdMapper]
if show_ids:
self.id_mapper = IdMapper()
def get_id(self, o: object) -> Optional[int]:
if self.id_mapper:
return self.id_mapper.id(o)
return None
def format_id(self, o: object) -> str:
if self.id_mapper:
return '<{}>'.format(self.get_id(o))
else:
return ''
def dump(self, nodes: Sequence[object], obj: 'mypy.nodes.Context') -> str:
"""Convert a list of items to a multiline pretty-printed string.
The tag is produced from the type name of obj and its line
number. See mypy.util.dump_tagged for a description of the nodes
argument.
"""
tag = short_type(obj) + ':' + str(obj.get_line())
if self.show_ids:
assert self.id_mapper is not None
tag += '<{}>'.format(self.get_id(obj))
return dump_tagged(nodes, tag, self)
def func_helper(self, o: 'mypy.nodes.FuncItem') -> List[object]:
"""Return a list in a format suitable for dump() that represents the
arguments and the body of a function. The caller can then decorate the
array with information specific to methods, global functions or
anonymous functions.
"""
args = [] # type: List[mypy.nodes.Var]
init = [] # type: List[Optional[mypy.nodes.AssignmentStmt]]
extra = [] # type: List[Tuple[str, List[mypy.nodes.Var]]]
for i, arg in enumerate(o.arguments):
kind = arg.kind # type: int
if kind in (mypy.nodes.ARG_POS, mypy.nodes.ARG_NAMED):
args.append(o.arguments[i].variable)
elif kind in (mypy.nodes.ARG_OPT, mypy.nodes.ARG_NAMED_OPT):
args.append(o.arguments[i].variable)
init.append(o.arguments[i].initialization_statement)
elif kind == mypy.nodes.ARG_STAR:
extra.append(('VarArg', [o.arguments[i].variable]))
elif kind == mypy.nodes.ARG_STAR2:
extra.append(('DictVarArg', [o.arguments[i].variable]))
a = [] # type: List[Any]
if args:
a.append(('Args', args))
if o.type:
a.append(o.type)
if init:
a.append(('Init', init))
if o.is_generator:
a.append('Generator')
a.extend(extra)
a.append(o.body)
return a
# Top-level structures
def visit_mypy_file(self, o: 'mypy.nodes.MypyFile') -> str:
# Skip implicit definitions.
a = [o.defs] # type: List[Any]
if o.is_bom:
a.insert(0, 'BOM')
# Omit path to special file with name "main". This is used to simplify
# test case descriptions; the file "main" is used by default in many
# test cases.
if o.path is not None and o.path != 'main':
# Insert path. Normalize directory separators to / to unify test
# case# output in all platforms.
a.insert(0, o.path.replace(os.sep, '/'))
if o.ignored_lines:
a.append('IgnoredLines(%s)' % ', '.join(str(line)
for line in sorted(o.ignored_lines)))
return self.dump(a, o)
def visit_import(self, o: 'mypy.nodes.Import') -> str:
a = []
for id, as_id in o.ids:
if as_id is not None:
a.append('{} : {}'.format(id, as_id))
else:
a.append(id)
return 'Import:{}({})'.format(o.line, ', '.join(a))
def visit_import_from(self, o: 'mypy.nodes.ImportFrom') -> str:
a = []
for name, as_name in o.names:
if as_name is not None:
a.append('{} : {}'.format(name, as_name))
else:
a.append(name)
return 'ImportFrom:{}({}, [{}])'.format(o.line, "." * o.relative + o.id, ', '.join(a))
def visit_import_all(self, o: 'mypy.nodes.ImportAll') -> str:
return 'ImportAll:{}({})'.format(o.line, "." * o.relative + o.id)
# Definitions
def visit_func_def(self, o: 'mypy.nodes.FuncDef') -> str:
a = self.func_helper(o)
a.insert(0, o.name())
arg_kinds = {arg.kind for arg in o.arguments}
if len(arg_kinds & {mypy.nodes.ARG_NAMED, mypy.nodes.ARG_NAMED_OPT}) > 0:
a.insert(1, 'MaxPos({})'.format(o.max_pos))
if o.is_abstract:
a.insert(-1, 'Abstract')
if o.is_static:
a.insert(-1, 'Static')
if o.is_class:
a.insert(-1, 'Class')
if o.is_property:
a.insert(-1, 'Property')
return self.dump(a, o)
def visit_overloaded_func_def(self, o: 'mypy.nodes.OverloadedFuncDef') -> str:
a = o.items[:] # type: Any
if o.type:
a.insert(0, o.type)
if o.impl:
a.insert(0, o.impl)
return self.dump(a, o)
def visit_class_def(self, o: 'mypy.nodes.ClassDef') -> str:
a = [o.name, o.defs.body]
# Display base types unless they are implicitly just builtins.object
# (in this case base_type_exprs is empty).
if o.base_type_exprs:
if o.info and o.info.bases:
a.insert(1, ('BaseType', o.info.bases))
else:
a.insert(1, ('BaseTypeExpr', o.base_type_exprs))
if o.type_vars:
a.insert(1, ('TypeVars', o.type_vars))
if o.metaclass:
a.insert(1, 'Metaclass({})'.format(o.metaclass))
if o.decorators:
a.insert(1, ('Decorators', o.decorators))
if o.info and o.info._promote:
a.insert(1, 'Promote({})'.format(o.info._promote))
if o.info and o.info.tuple_type:
a.insert(1, ('TupleType', [o.info.tuple_type]))
if o.info and o.info.fallback_to_any:
a.insert(1, 'FallbackToAny')
return self.dump(a, o)
def visit_var(self, o: 'mypy.nodes.Var') -> str:
l = ''
# Add :nil line number tag if no line number is specified to remain
# compatible with old test case descriptions that assume this.
if o.line < 0:
l = ':nil'
return 'Var' + l + '(' + o.name() + ')'
def visit_global_decl(self, o: 'mypy.nodes.GlobalDecl') -> str:
return self.dump([o.names], o)
def visit_nonlocal_decl(self, o: 'mypy.nodes.NonlocalDecl') -> str:
return self.dump([o.names], o)
def visit_decorator(self, o: 'mypy.nodes.Decorator') -> str:
return self.dump([o.var, o.decorators, o.func], o)
# Statements
def visit_block(self, o: 'mypy.nodes.Block') -> str:
return self.dump(o.body, o)
def visit_expression_stmt(self, o: 'mypy.nodes.ExpressionStmt') -> str:
return self.dump([o.expr], o)
def visit_assignment_stmt(self, o: 'mypy.nodes.AssignmentStmt') -> str:
a = [] # type: List[Any]
if len(o.lvalues) > 1:
a = [('Lvalues', o.lvalues)]
else:
a = [o.lvalues[0]]
a.append(o.rvalue)
if o.type:
a.append(o.type)
return self.dump(a, o)
def visit_operator_assignment_stmt(self, o: 'mypy.nodes.OperatorAssignmentStmt') -> str:
return self.dump([o.op, o.lvalue, o.rvalue], o)
def visit_while_stmt(self, o: 'mypy.nodes.WhileStmt') -> str:
a = [o.expr, o.body] # type: List[Any]
if o.else_body:
a.append(('Else', o.else_body.body))
return self.dump(a, o)
def visit_for_stmt(self, o: 'mypy.nodes.ForStmt') -> str:
a = [] # type: List[Any]
if o.is_async:
a.append(('Async', ''))
a.append(o.index)
if o.index_type:
a.append(o.index_type)
a.extend([o.expr, o.body])
if o.else_body:
a.append(('Else', o.else_body.body))
return self.dump(a, o)
def visit_return_stmt(self, o: 'mypy.nodes.ReturnStmt') -> str:
return self.dump([o.expr], o)
def visit_if_stmt(self, o: 'mypy.nodes.IfStmt') -> str:
a = [] # type: List[Any]
for i in range(len(o.expr)):
a.append(('If', [o.expr[i]]))
a.append(('Then', o.body[i].body))
if not o.else_body:
return self.dump(a, o)
else:
return self.dump([a, ('Else', o.else_body.body)], o)
def visit_break_stmt(self, o: 'mypy.nodes.BreakStmt') -> str:
return self.dump([], o)
def visit_continue_stmt(self, o: 'mypy.nodes.ContinueStmt') -> str:
return self.dump([], o)
def visit_pass_stmt(self, o: 'mypy.nodes.PassStmt') -> str:
return self.dump([], o)
def visit_raise_stmt(self, o: 'mypy.nodes.RaiseStmt') -> str:
return self.dump([o.expr, o.from_expr], o)
def visit_assert_stmt(self, o: 'mypy.nodes.AssertStmt') -> str:
if o.msg is not None:
return self.dump([o.expr, o.msg], o)
else:
return self.dump([o.expr], o)
def visit_await_expr(self, o: 'mypy.nodes.AwaitExpr') -> str:
return self.dump([o.expr], o)
def visit_del_stmt(self, o: 'mypy.nodes.DelStmt') -> str:
return self.dump([o.expr], o)
def visit_try_stmt(self, o: 'mypy.nodes.TryStmt') -> str:
a = [o.body] # type: List[Any]
for i in range(len(o.vars)):
a.append(o.types[i])
if o.vars[i]:
a.append(o.vars[i])
a.append(o.handlers[i])
if o.else_body:
a.append(('Else', o.else_body.body))
if o.finally_body:
a.append(('Finally', o.finally_body.body))
return self.dump(a, o)
def visit_with_stmt(self, o: 'mypy.nodes.WithStmt') -> str:
a = [] # type: List[Any]
if o.is_async:
a.append(('Async', ''))
for i in range(len(o.expr)):
a.append(('Expr', [o.expr[i]]))
if o.target[i]:
a.append(('Target', [o.target[i]]))
if o.target_type:
a.append(o.target_type)
return self.dump(a + [o.body], o)
def visit_print_stmt(self, o: 'mypy.nodes.PrintStmt') -> str:
a = o.args[:] # type: List[Any]
if o.target:
a.append(('Target', [o.target]))
if o.newline:
a.append('Newline')
return self.dump(a, o)
def visit_exec_stmt(self, o: 'mypy.nodes.ExecStmt') -> str:
return self.dump([o.expr, o.variables1, o.variables2], o)
# Expressions
# Simple expressions
def visit_int_expr(self, o: 'mypy.nodes.IntExpr') -> str:
return 'IntExpr({})'.format(o.value)
def visit_str_expr(self, o: 'mypy.nodes.StrExpr') -> str:
return 'StrExpr({})'.format(self.str_repr(o.value))
def visit_bytes_expr(self, o: 'mypy.nodes.BytesExpr') -> str:
return 'BytesExpr({})'.format(self.str_repr(o.value))
def visit_unicode_expr(self, o: 'mypy.nodes.UnicodeExpr') -> str:
return 'UnicodeExpr({})'.format(self.str_repr(o.value))
def str_repr(self, s: str) -> str:
s = re.sub(r'\\u[0-9a-fA-F]{4}', lambda m: '\\' + m.group(0), s)
return re.sub('[^\\x20-\\x7e]',
lambda m: r'\u%.4x' % ord(m.group(0)), s)
def visit_float_expr(self, o: 'mypy.nodes.FloatExpr') -> str:
return 'FloatExpr({})'.format(o.value)
def visit_complex_expr(self, o: 'mypy.nodes.ComplexExpr') -> str:
return 'ComplexExpr({})'.format(o.value)
def visit_ellipsis(self, o: 'mypy.nodes.EllipsisExpr') -> str:
return 'Ellipsis'
def visit_star_expr(self, o: 'mypy.nodes.StarExpr') -> str:
return self.dump([o.expr], o)
def visit_name_expr(self, o: 'mypy.nodes.NameExpr') -> str:
pretty = self.pretty_name(o.name, o.kind, o.fullname, o.is_def, o.node)
return short_type(o) + '(' + pretty + ')'
def pretty_name(self, name: str, kind: int, fullname: str, is_def: bool,
target_node: 'Optional[mypy.nodes.Node]' = None) -> str:
n = name
if is_def:
n += '*'
if target_node:
id = self.format_id(target_node)
else:
id = ''
if kind == mypy.nodes.GDEF or (fullname != name and
fullname is not None):
# Append fully qualified name for global references.
n += ' [{}{}]'.format(fullname, id)
elif kind == mypy.nodes.LDEF:
# Add tag to signify a local reference.
n += ' [l{}]'.format(id)
elif kind == mypy.nodes.MDEF:
# Add tag to signify a member reference.
n += ' [m{}]'.format(id)
else:
n += id
return n
def visit_member_expr(self, o: 'mypy.nodes.MemberExpr') -> str:
pretty = self.pretty_name(o.name, o.kind, o.fullname, o.is_def, o.node)
return self.dump([o.expr, pretty], o)
def visit_yield_expr(self, o: 'mypy.nodes.YieldExpr') -> str:
return self.dump([o.expr], o)
def visit_yield_from_expr(self, o: 'mypy.nodes.YieldFromExpr') -> str:
if o.expr:
return self.dump([o.expr.accept(self)], o)
else:
return self.dump([], o)
def visit_call_expr(self, o: 'mypy.nodes.CallExpr') -> str:
if o.analyzed:
return o.analyzed.accept(self)
args = [] # type: List[mypy.nodes.Expression]
extra = [] # type: List[Union[str, Tuple[str, List[Any]]]]
for i, kind in enumerate(o.arg_kinds):
if kind in [mypy.nodes.ARG_POS, mypy.nodes.ARG_STAR]:
args.append(o.args[i])
if kind == mypy.nodes.ARG_STAR:
extra.append('VarArg')
elif kind == mypy.nodes.ARG_NAMED:
extra.append(('KwArgs', [o.arg_names[i], o.args[i]]))
elif kind == mypy.nodes.ARG_STAR2:
extra.append(('DictVarArg', [o.args[i]]))
else:
raise RuntimeError('unknown kind %d' % kind)
a = [o.callee, ('Args', args)] # type: List[Any]
return self.dump(a + extra, o)
def visit_op_expr(self, o: 'mypy.nodes.OpExpr') -> str:
return self.dump([o.op, o.left, o.right], o)
def visit_comparison_expr(self, o: 'mypy.nodes.ComparisonExpr') -> str:
return self.dump([o.operators, o.operands], o)
def visit_cast_expr(self, o: 'mypy.nodes.CastExpr') -> str:
return self.dump([o.expr, o.type], o)
def visit_reveal_type_expr(self, o: 'mypy.nodes.RevealTypeExpr') -> str:
return self.dump([o.expr], o)
def visit_unary_expr(self, o: 'mypy.nodes.UnaryExpr') -> str:
return self.dump([o.op, o.expr], o)
def visit_list_expr(self, o: 'mypy.nodes.ListExpr') -> str:
return self.dump(o.items, o)
def visit_dict_expr(self, o: 'mypy.nodes.DictExpr') -> str:
return self.dump([[k, v] for k, v in o.items], o)
def visit_set_expr(self, o: 'mypy.nodes.SetExpr') -> str:
return self.dump(o.items, o)
def visit_tuple_expr(self, o: 'mypy.nodes.TupleExpr') -> str:
return self.dump(o.items, o)
def visit_index_expr(self, o: 'mypy.nodes.IndexExpr') -> str:
if o.analyzed:
return o.analyzed.accept(self)
return self.dump([o.base, o.index], o)
def visit_super_expr(self, o: 'mypy.nodes.SuperExpr') -> str:
return self.dump([o.name], o)
def visit_type_application(self, o: 'mypy.nodes.TypeApplication') -> str:
return self.dump([o.expr, ('Types', o.types)], o)
def visit_type_var_expr(self, o: 'mypy.nodes.TypeVarExpr') -> str:
import mypy.types
a = [] # type: List[Any]
if o.variance == mypy.nodes.COVARIANT:
a += ['Variance(COVARIANT)']
if o.variance == mypy.nodes.CONTRAVARIANT:
a += ['Variance(CONTRAVARIANT)']
if o.values:
a += [('Values', o.values)]
if not mypy.types.is_named_instance(o.upper_bound, 'builtins.object'):
a += ['UpperBound({})'.format(o.upper_bound)]
return self.dump(a, o)
def visit_type_alias_expr(self, o: 'mypy.nodes.TypeAliasExpr') -> str:
return 'TypeAliasExpr({})'.format(o.type)
def visit_namedtuple_expr(self, o: 'mypy.nodes.NamedTupleExpr') -> str:
return 'NamedTupleExpr:{}({}, {})'.format(o.line,
o.info.name(),
o.info.tuple_type)
def visit_enum_call_expr(self, o: 'mypy.nodes.EnumCallExpr') -> str:
return 'EnumCallExpr:{}({}, {})'.format(o.line, o.info.name(), o.items)
def visit_typeddict_expr(self, o: 'mypy.nodes.TypedDictExpr') -> str:
return 'TypedDictExpr:{}({})'.format(o.line,
o.info.name())
def visit__promote_expr(self, o: 'mypy.nodes.PromoteExpr') -> str:
return 'PromoteExpr:{}({})'.format(o.line, o.type)
def visit_newtype_expr(self, o: 'mypy.nodes.NewTypeExpr') -> str:
return 'NewTypeExpr:{}({}, {})'.format(o.line, o.name,
self.dump([o.old_type], o))
def visit_lambda_expr(self, o: 'mypy.nodes.LambdaExpr') -> str:
a = self.func_helper(o)
return self.dump(a, o)
def visit_generator_expr(self, o: 'mypy.nodes.GeneratorExpr') -> str:
condlists = o.condlists if any(o.condlists) else None
return self.dump([o.left_expr, o.indices, o.sequences, condlists], o)
def visit_list_comprehension(self, o: 'mypy.nodes.ListComprehension') -> str:
return self.dump([o.generator], o)
def visit_set_comprehension(self, o: 'mypy.nodes.SetComprehension') -> str:
return self.dump([o.generator], o)
def visit_dictionary_comprehension(self, o: 'mypy.nodes.DictionaryComprehension') -> str:
condlists = o.condlists if any(o.condlists) else None
return self.dump([o.key, o.value, o.indices, o.sequences, condlists], o)
def visit_conditional_expr(self, o: 'mypy.nodes.ConditionalExpr') -> str:
return self.dump([('Condition', [o.cond]), o.if_expr, o.else_expr], o)
def visit_slice_expr(self, o: 'mypy.nodes.SliceExpr') -> str:
a = [o.begin_index, o.end_index, o.stride] # type: List[Any]
if not a[0]:
a[0] = '<empty>'
if not a[1]:
a[1] = '<empty>'
return self.dump(a, o)
def visit_backquote_expr(self, o: 'mypy.nodes.BackquoteExpr') -> str:
return self.dump([o.expr], o)
def visit_temp_node(self, o: 'mypy.nodes.TempNode') -> str:
return self.dump([o.type], o)
class StrConv(NodeVisitor[str]):
"""Visitor for converting a node to a human-readable string.
For example, an MypyFile node from program '1' is converted into
something like this:
MypyFile:1(
fnam
ExpressionStmt:1(
IntExpr(1)))
"""
def __init__(self, show_ids: bool = False) -> None:
self.show_ids = show_ids
self.id_mapper = None # type: Optional[IdMapper]
if show_ids:
self.id_mapper = IdMapper()
def get_id(self, o: object) -> Optional[int]:
if self.id_mapper:
return self.id_mapper.id(o)
return None
def format_id(self, o: object) -> str:
if self.id_mapper:
return '<{}>'.format(self.get_id(o))
else:
return ''
def dump(self, nodes: Sequence[object], obj: 'mypy.nodes.Context') -> str:
"""Convert a list of items to a multiline pretty-printed string.
The tag is produced from the type name of obj and its line
number. See mypy.util.dump_tagged for a description of the nodes
argument.
"""
tag = short_type(obj) + ':' + str(obj.get_line())
if self.show_ids:
assert self.id_mapper is not None
tag += '<{}>'.format(self.get_id(obj))
return dump_tagged(nodes, tag, self)
def func_helper(self, o: 'mypy.nodes.FuncItem') -> List[object]:
"""Return a list in a format suitable for dump() that represents the
arguments and the body of a function. The caller can then decorate the
array with information specific to methods, global functions or
anonymous functions.
"""
args = [] # type: List[Union[mypy.nodes.Var, Tuple[str, List[mypy.nodes.Node]]]]
extra = [] # type: List[Tuple[str, List[mypy.nodes.Var]]]
for arg in o.arguments:
kind = arg.kind # type: int
if kind in (mypy.nodes.ARG_POS, mypy.nodes.ARG_NAMED):
args.append(arg.variable)
elif kind in (mypy.nodes.ARG_OPT, mypy.nodes.ARG_NAMED_OPT):
assert arg.initializer is not None
args.append(('default', [arg.variable, arg.initializer]))
elif kind == mypy.nodes.ARG_STAR:
extra.append(('VarArg', [arg.variable]))
elif kind == mypy.nodes.ARG_STAR2:
extra.append(('DictVarArg', [arg.variable]))
a = [] # type: List[Any]
if args:
a.append(('Args', args))
if o.type:
a.append(o.type)
if o.is_generator:
a.append('Generator')
a.extend(extra)
a.append(o.body)
return a
# Top-level structures
def visit_mypy_file(self, o: 'mypy.nodes.MypyFile') -> str:
# Skip implicit definitions.
a = [o.defs] # type: List[Any]
if o.is_bom:
a.insert(0, 'BOM')
# Omit path to special file with name "main". This is used to simplify
# test case descriptions; the file "main" is used by default in many
# test cases.
if o.path is not None and o.path != 'main':
# Insert path. Normalize directory separators to / to unify test
# case# output in all platforms.
a.insert(0, o.path.replace(os.sep, '/'))
if o.ignored_lines:
a.append('IgnoredLines(%s)' % ', '.join(str(line)
for line in sorted(o.ignored_lines)))
return self.dump(a, o)
def visit_import(self, o: 'mypy.nodes.Import') -> str:
a = []
for id, as_id in o.ids:
if as_id is not None:
a.append('{} : {}'.format(id, as_id))
else:
a.append(id)
return 'Import:{}({})'.format(o.line, ', '.join(a))
def visit_import_from(self, o: 'mypy.nodes.ImportFrom') -> str:
a = []
for name, as_name in o.names:
if as_name is not None:
a.append('{} : {}'.format(name, as_name))
else:
a.append(name)
return 'ImportFrom:{}({}, [{}])'.format(o.line, "." * o.relative + o.id, ', '.join(a))
def visit_import_all(self, o: 'mypy.nodes.ImportAll') -> str:
return 'ImportAll:{}({})'.format(o.line, "." * o.relative + o.id)
# Definitions
def visit_func_def(self, o: 'mypy.nodes.FuncDef') -> str:
a = self.func_helper(o)
a.insert(0, o.name())
arg_kinds = {arg.kind for arg in o.arguments}
if len(arg_kinds & {mypy.nodes.ARG_NAMED, mypy.nodes.ARG_NAMED_OPT}) > 0:
a.insert(1, 'MaxPos({})'.format(o.max_pos))
if o.is_abstract:
a.insert(-1, 'Abstract')
if o.is_static:
a.insert(-1, 'Static')
if o.is_class:
a.insert(-1, 'Class')
if o.is_property:
a.insert(-1, 'Property')
return self.dump(a, o)
def visit_overloaded_func_def(self, o: 'mypy.nodes.OverloadedFuncDef') -> str:
a = o.items[:] # type: Any
if o.type:
a.insert(0, o.type)
if o.impl:
a.insert(0, o.impl)
if o.is_static:
a.insert(-1, 'Static')
if o.is_class:
a.insert(-1, 'Class')
return self.dump(a, o)
def visit_class_def(self, o: 'mypy.nodes.ClassDef') -> str:
a = [o.name, o.defs.body]
# Display base types unless they are implicitly just builtins.object
# (in this case base_type_exprs is empty).
if o.base_type_exprs:
if o.info and o.info.bases:
if (len(o.info.bases) != 1
or o.info.bases[0].type.fullname() != 'builtins.object'):
a.insert(1, ('BaseType', o.info.bases))
else:
a.insert(1, ('BaseTypeExpr', o.base_type_exprs))
if o.type_vars:
a.insert(1, ('TypeVars', o.type_vars))
if o.metaclass:
a.insert(1, 'Metaclass({})'.format(o.metaclass))
if o.decorators:
a.insert(1, ('Decorators', o.decorators))
if o.info and o.info._promote:
a.insert(1, 'Promote({})'.format(o.info._promote))
if o.info and o.info.tuple_type:
a.insert(1, ('TupleType', [o.info.tuple_type]))
if o.info and o.info.fallback_to_any:
a.insert(1, 'FallbackToAny')
return self.dump(a, o)
def visit_var(self, o: 'mypy.nodes.Var') -> str:
lst = ''
# Add :nil line number tag if no line number is specified to remain
# compatible with old test case descriptions that assume this.
if o.line < 0:
lst = ':nil'
return 'Var' + lst + '(' + o.name() + ')'
def visit_global_decl(self, o: 'mypy.nodes.GlobalDecl') -> str:
return self.dump([o.names], o)
def visit_nonlocal_decl(self, o: 'mypy.nodes.NonlocalDecl') -> str:
return self.dump([o.names], o)
def visit_decorator(self, o: 'mypy.nodes.Decorator') -> str:
return self.dump([o.var, o.decorators, o.func], o)
# Statements
def visit_block(self, o: 'mypy.nodes.Block') -> str:
return self.dump(o.body, o)
def visit_expression_stmt(self, o: 'mypy.nodes.ExpressionStmt') -> str:
return self.dump([o.expr], o)
def visit_assignment_stmt(self, o: 'mypy.nodes.AssignmentStmt') -> str:
a = [] # type: List[Any]
if len(o.lvalues) > 1:
a = [('Lvalues', o.lvalues)]
else:
a = [o.lvalues[0]]
a.append(o.rvalue)
if o.type:
a.append(o.type)
return self.dump(a, o)
def visit_operator_assignment_stmt(self, o: 'mypy.nodes.OperatorAssignmentStmt') -> str:
return self.dump([o.op, o.lvalue, o.rvalue], o)
def visit_while_stmt(self, o: 'mypy.nodes.WhileStmt') -> str:
a = [o.expr, o.body] # type: List[Any]
if o.else_body:
a.append(('Else', o.else_body.body))
return self.dump(a, o)
def visit_for_stmt(self, o: 'mypy.nodes.ForStmt') -> str:
a = [] # type: List[Any]
if o.is_async:
a.append(('Async', ''))
a.append(o.index)
if o.index_type:
a.append(o.index_type)
a.extend([o.expr, o.body])
if o.else_body:
a.append(('Else', o.else_body.body))
return self.dump(a, o)
def visit_return_stmt(self, o: 'mypy.nodes.ReturnStmt') -> str:
return self.dump([o.expr], o)
def visit_if_stmt(self, o: 'mypy.nodes.IfStmt') -> str:
a = [] # type: List[Any]
for i in range(len(o.expr)):
a.append(('If', [o.expr[i]]))
a.append(('Then', o.body[i].body))
if not o.else_body:
return self.dump(a, o)
else:
return self.dump([a, ('Else', o.else_body.body)], o)
def visit_break_stmt(self, o: 'mypy.nodes.BreakStmt') -> str:
return self.dump([], o)
def visit_continue_stmt(self, o: 'mypy.nodes.ContinueStmt') -> str:
return self.dump([], o)
def visit_pass_stmt(self, o: 'mypy.nodes.PassStmt') -> str:
return self.dump([], o)
def visit_raise_stmt(self, o: 'mypy.nodes.RaiseStmt') -> str:
return self.dump([o.expr, o.from_expr], o)
def visit_assert_stmt(self, o: 'mypy.nodes.AssertStmt') -> str:
if o.msg is not None:
return self.dump([o.expr, o.msg], o)
else:
return self.dump([o.expr], o)
def visit_await_expr(self, o: 'mypy.nodes.AwaitExpr') -> str:
return self.dump([o.expr], o)
def visit_del_stmt(self, o: 'mypy.nodes.DelStmt') -> str:
return self.dump([o.expr], o)
def visit_try_stmt(self, o: 'mypy.nodes.TryStmt') -> str:
a = [o.body] # type: List[Any]
for i in range(len(o.vars)):
a.append(o.types[i])
if o.vars[i]:
a.append(o.vars[i])
a.append(o.handlers[i])
if o.else_body:
a.append(('Else', o.else_body.body))
if o.finally_body:
a.append(('Finally', o.finally_body.body))
return self.dump(a, o)
def visit_with_stmt(self, o: 'mypy.nodes.WithStmt') -> str:
a = [] # type: List[Any]
if o.is_async:
a.append(('Async', ''))
for i in range(len(o.expr)):
a.append(('Expr', [o.expr[i]]))
if o.target[i]:
a.append(('Target', [o.target[i]]))
if o.target_type:
a.append(o.target_type)
return self.dump(a + [o.body], o)
def visit_print_stmt(self, o: 'mypy.nodes.PrintStmt') -> str:
a = o.args[:] # type: List[Any]
if o.target:
a.append(('Target', [o.target]))
if o.newline:
a.append('Newline')
return self.dump(a, o)
def visit_exec_stmt(self, o: 'mypy.nodes.ExecStmt') -> str:
return self.dump([o.expr, o.globals, o.locals], o)
# Expressions
# Simple expressions
def visit_int_expr(self, o: 'mypy.nodes.IntExpr') -> str:
return 'IntExpr({})'.format(o.value)
def visit_str_expr(self, o: 'mypy.nodes.StrExpr') -> str:
return 'StrExpr({})'.format(self.str_repr(o.value))
def visit_bytes_expr(self, o: 'mypy.nodes.BytesExpr') -> str:
return 'BytesExpr({})'.format(self.str_repr(o.value))
def visit_unicode_expr(self, o: 'mypy.nodes.UnicodeExpr') -> str:
return 'UnicodeExpr({})'.format(self.str_repr(o.value))
def str_repr(self, s: str) -> str:
s = re.sub(r'\\u[0-9a-fA-F]{4}', lambda m: '\\' + m.group(0), s)
return re.sub('[^\\x20-\\x7e]',
lambda m: r'\u%.4x' % ord(m.group(0)), s)
def visit_float_expr(self, o: 'mypy.nodes.FloatExpr') -> str:
return 'FloatExpr({})'.format(o.value)
def visit_complex_expr(self, o: 'mypy.nodes.ComplexExpr') -> str:
return 'ComplexExpr({})'.format(o.value)
def visit_ellipsis(self, o: 'mypy.nodes.EllipsisExpr') -> str:
return 'Ellipsis'
def visit_star_expr(self, o: 'mypy.nodes.StarExpr') -> str:
return self.dump([o.expr], o)
def visit_name_expr(self, o: 'mypy.nodes.NameExpr') -> str:
pretty = self.pretty_name(o.name, o.kind, o.fullname, o.is_inferred_def, o.node)
if isinstance(o.node, mypy.nodes.Var) and o.node.is_final:
pretty += ' = {}'.format(o.node.final_value)
return short_type(o) + '(' + pretty + ')'
def pretty_name(self, name: str, kind: Optional[int], fullname: Optional[str],
is_inferred_def: bool, target_node: 'Optional[mypy.nodes.Node]' = None) -> str:
n = name
if is_inferred_def:
n += '*'
if target_node:
id = self.format_id(target_node)
else:
id = ''
if isinstance(target_node, mypy.nodes.MypyFile) and name == fullname:
n += id
elif kind == mypy.nodes.GDEF or (fullname != name and
fullname is not None):
# Append fully qualified name for global references.
n += ' [{}{}]'.format(fullname, id)
elif kind == mypy.nodes.LDEF:
# Add tag to signify a local reference.
n += ' [l{}]'.format(id)
elif kind == mypy.nodes.MDEF:
# Add tag to signify a member reference.
n += ' [m{}]'.format(id)
else:
n += id
return n
def visit_member_expr(self, o: 'mypy.nodes.MemberExpr') -> str:
pretty = self.pretty_name(o.name, o.kind, o.fullname, o.is_inferred_def, o.node)
return self.dump([o.expr, pretty], o)
def visit_yield_expr(self, o: 'mypy.nodes.YieldExpr') -> str:
return self.dump([o.expr], o)
def visit_yield_from_expr(self, o: 'mypy.nodes.YieldFromExpr') -> str:
if o.expr:
return self.dump([o.expr.accept(self)], o)
else:
return self.dump([], o)
def visit_call_expr(self, o: 'mypy.nodes.CallExpr') -> str:
if o.analyzed:
return o.analyzed.accept(self)
args = [] # type: List[mypy.nodes.Expression]
extra = [] # type: List[Union[str, Tuple[str, List[Any]]]]
for i, kind in enumerate(o.arg_kinds):
if kind in [mypy.nodes.ARG_POS, mypy.nodes.ARG_STAR]:
args.append(o.args[i])
if kind == mypy.nodes.ARG_STAR:
extra.append('VarArg')
elif kind == mypy.nodes.ARG_NAMED:
extra.append(('KwArgs', [o.arg_names[i], o.args[i]]))
elif kind == mypy.nodes.ARG_STAR2:
extra.append(('DictVarArg', [o.args[i]]))
else:
raise RuntimeError('unknown kind %d' % kind)
a = [o.callee, ('Args', args)] # type: List[Any]
return self.dump(a + extra, o)
def visit_op_expr(self, o: 'mypy.nodes.OpExpr') -> str:
return self.dump([o.op, o.left, o.right], o)
def visit_comparison_expr(self, o: 'mypy.nodes.ComparisonExpr') -> str:
return self.dump([o.operators, o.operands], o)
def visit_cast_expr(self, o: 'mypy.nodes.CastExpr') -> str:
return self.dump([o.expr, o.type], o)
def visit_reveal_expr(self, o: 'mypy.nodes.RevealExpr') -> str:
if o.kind == mypy.nodes.REVEAL_TYPE:
return self.dump([o.expr], o)
else:
# REVEAL_LOCALS
return self.dump([o.local_nodes], o)
def visit_unary_expr(self, o: 'mypy.nodes.UnaryExpr') -> str:
return self.dump([o.op, o.expr], o)
def visit_list_expr(self, o: 'mypy.nodes.ListExpr') -> str:
return self.dump(o.items, o)
def visit_dict_expr(self, o: 'mypy.nodes.DictExpr') -> str:
return self.dump([[k, v] for k, v in o.items], o)
def visit_set_expr(self, o: 'mypy.nodes.SetExpr') -> str:
return self.dump(o.items, o)
def visit_tuple_expr(self, o: 'mypy.nodes.TupleExpr') -> str:
return self.dump(o.items, o)
def visit_index_expr(self, o: 'mypy.nodes.IndexExpr') -> str:
if o.analyzed:
return o.analyzed.accept(self)
return self.dump([o.base, o.index], o)
def visit_super_expr(self, o: 'mypy.nodes.SuperExpr') -> str:
return self.dump([o.name, o.call], o)
def visit_type_application(self, o: 'mypy.nodes.TypeApplication') -> str:
return self.dump([o.expr, ('Types', o.types)], o)
def visit_type_var_expr(self, o: 'mypy.nodes.TypeVarExpr') -> str:
import mypy.types
a = [] # type: List[Any]
if o.variance == mypy.nodes.COVARIANT:
a += ['Variance(COVARIANT)']
if o.variance == mypy.nodes.CONTRAVARIANT:
a += ['Variance(CONTRAVARIANT)']
if o.values:
a += [('Values', o.values)]
if not mypy.types.is_named_instance(o.upper_bound, 'builtins.object'):
a += ['UpperBound({})'.format(o.upper_bound)]
return self.dump(a, o)
def visit_type_alias_expr(self, o: 'mypy.nodes.TypeAliasExpr') -> str:
return 'TypeAliasExpr({})'.format(o.type)
def visit_namedtuple_expr(self, o: 'mypy.nodes.NamedTupleExpr') -> str:
return 'NamedTupleExpr:{}({}, {})'.format(o.line,
o.info.name(),
o.info.tuple_type)
def visit_enum_call_expr(self, o: 'mypy.nodes.EnumCallExpr') -> str:
return 'EnumCallExpr:{}({}, {})'.format(o.line, o.info.name(), o.items)
def visit_typeddict_expr(self, o: 'mypy.nodes.TypedDictExpr') -> str:
return 'TypedDictExpr:{}({})'.format(o.line,
o.info.name())
def visit__promote_expr(self, o: 'mypy.nodes.PromoteExpr') -> str:
return 'PromoteExpr:{}({})'.format(o.line, o.type)
def visit_newtype_expr(self, o: 'mypy.nodes.NewTypeExpr') -> str:
return 'NewTypeExpr:{}({}, {})'.format(o.line, o.name,
self.dump([o.old_type], o))
def visit_lambda_expr(self, o: 'mypy.nodes.LambdaExpr') -> str:
a = self.func_helper(o)
return self.dump(a, o)
def visit_generator_expr(self, o: 'mypy.nodes.GeneratorExpr') -> str:
condlists = o.condlists if any(o.condlists) else None
return self.dump([o.left_expr, o.indices, o.sequences, condlists], o)
def visit_list_comprehension(self, o: 'mypy.nodes.ListComprehension') -> str:
return self.dump([o.generator], o)
def visit_set_comprehension(self, o: 'mypy.nodes.SetComprehension') -> str:
return self.dump([o.generator], o)
def visit_dictionary_comprehension(self, o: 'mypy.nodes.DictionaryComprehension') -> str:
condlists = o.condlists if any(o.condlists) else None
return self.dump([o.key, o.value, o.indices, o.sequences, condlists], o)
def visit_conditional_expr(self, o: 'mypy.nodes.ConditionalExpr') -> str:
return self.dump([('Condition', [o.cond]), o.if_expr, o.else_expr], o)
def visit_slice_expr(self, o: 'mypy.nodes.SliceExpr') -> str:
a = [o.begin_index, o.end_index, o.stride] # type: List[Any]
if not a[0]:
a[0] = '<empty>'
if not a[1]:
a[1] = '<empty>'
return self.dump(a, o)
def visit_backquote_expr(self, o: 'mypy.nodes.BackquoteExpr') -> str:
return self.dump([o.expr], o)
def visit_temp_node(self, o: 'mypy.nodes.TempNode') -> str:
return self.dump([o.type], o)
