641 lines
23 KiB
Python
641 lines
23 KiB
Python
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"""Conversion of parse tree nodes to strings."""
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import re
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import os
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from typing import Any, List, Tuple, Optional, Union, Sequence
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from typing_extensions import TYPE_CHECKING
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from mypy.util import short_type, IdMapper
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import mypy.nodes
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from mypy.visitor import NodeVisitor
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if TYPE_CHECKING:
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import mypy.patterns
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class StrConv(NodeVisitor[str]):
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"""Visitor for converting a node to a human-readable string.
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For example, an MypyFile node from program '1' is converted into
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something like this:
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MypyFile:1(
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fnam
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ExpressionStmt:1(
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IntExpr(1)))
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"""
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def __init__(self, show_ids: bool = False) -> None:
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self.show_ids = show_ids
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self.id_mapper: Optional[IdMapper] = None
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if show_ids:
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self.id_mapper = IdMapper()
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def get_id(self, o: object) -> Optional[int]:
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if self.id_mapper:
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return self.id_mapper.id(o)
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return None
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def format_id(self, o: object) -> str:
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if self.id_mapper:
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return f'<{self.get_id(o)}>'
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else:
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return ''
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def dump(self, nodes: Sequence[object], obj: 'mypy.nodes.Context') -> str:
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"""Convert a list of items to a multiline pretty-printed string.
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The tag is produced from the type name of obj and its line
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number. See mypy.util.dump_tagged for a description of the nodes
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argument.
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"""
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tag = short_type(obj) + ':' + str(obj.get_line())
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if self.show_ids:
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assert self.id_mapper is not None
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tag += f'<{self.get_id(obj)}>'
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return dump_tagged(nodes, tag, self)
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def func_helper(self, o: 'mypy.nodes.FuncItem') -> List[object]:
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"""Return a list in a format suitable for dump() that represents the
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arguments and the body of a function. The caller can then decorate the
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array with information specific to methods, global functions or
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anonymous functions.
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"""
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args: List[Union[mypy.nodes.Var, Tuple[str, List[mypy.nodes.Node]]]] = []
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extra: List[Tuple[str, List[mypy.nodes.Var]]] = []
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for arg in o.arguments:
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kind: mypy.nodes.ArgKind = arg.kind
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if kind.is_required():
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args.append(arg.variable)
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elif kind.is_optional():
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assert arg.initializer is not None
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args.append(('default', [arg.variable, arg.initializer]))
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elif kind == mypy.nodes.ARG_STAR:
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extra.append(('VarArg', [arg.variable]))
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elif kind == mypy.nodes.ARG_STAR2:
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extra.append(('DictVarArg', [arg.variable]))
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a: List[Any] = []
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if args:
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a.append(('Args', args))
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if o.type:
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a.append(o.type)
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if o.is_generator:
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a.append('Generator')
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a.extend(extra)
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a.append(o.body)
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return a
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# Top-level structures
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def visit_mypy_file(self, o: 'mypy.nodes.MypyFile') -> str:
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# Skip implicit definitions.
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a: List[Any] = [o.defs]
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if o.is_bom:
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a.insert(0, 'BOM')
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# Omit path to special file with name "main". This is used to simplify
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# test case descriptions; the file "main" is used by default in many
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# test cases.
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if o.path != 'main':
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# Insert path. Normalize directory separators to / to unify test
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# case# output in all platforms.
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a.insert(0, o.path.replace(os.sep, '/'))
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if o.ignored_lines:
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a.append('IgnoredLines(%s)' % ', '.join(str(line)
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for line in sorted(o.ignored_lines)))
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return self.dump(a, o)
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def visit_import(self, o: 'mypy.nodes.Import') -> str:
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a = []
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for id, as_id in o.ids:
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if as_id is not None:
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a.append(f'{id} : {as_id}')
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else:
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a.append(id)
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return f"Import:{o.line}({', '.join(a)})"
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def visit_import_from(self, o: 'mypy.nodes.ImportFrom') -> str:
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a = []
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for name, as_name in o.names:
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if as_name is not None:
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a.append(f'{name} : {as_name}')
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else:
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a.append(name)
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return f"ImportFrom:{o.line}({'.' * o.relative + o.id}, [{', '.join(a)}])"
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def visit_import_all(self, o: 'mypy.nodes.ImportAll') -> str:
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return f"ImportAll:{o.line}({'.' * o.relative + o.id})"
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# Definitions
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def visit_func_def(self, o: 'mypy.nodes.FuncDef') -> str:
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a = self.func_helper(o)
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a.insert(0, o.name)
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arg_kinds = {arg.kind for arg in o.arguments}
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if len(arg_kinds & {mypy.nodes.ARG_NAMED, mypy.nodes.ARG_NAMED_OPT}) > 0:
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a.insert(1, f'MaxPos({o.max_pos})')
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if o.is_abstract:
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a.insert(-1, 'Abstract')
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if o.is_static:
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a.insert(-1, 'Static')
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if o.is_class:
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a.insert(-1, 'Class')
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if o.is_property:
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a.insert(-1, 'Property')
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return self.dump(a, o)
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def visit_overloaded_func_def(self, o: 'mypy.nodes.OverloadedFuncDef') -> str:
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a: Any = o.items[:]
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if o.type:
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a.insert(0, o.type)
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if o.impl:
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a.insert(0, o.impl)
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if o.is_static:
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a.insert(-1, 'Static')
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if o.is_class:
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a.insert(-1, 'Class')
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return self.dump(a, o)
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def visit_class_def(self, o: 'mypy.nodes.ClassDef') -> str:
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a = [o.name, o.defs.body]
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# Display base types unless they are implicitly just builtins.object
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# (in this case base_type_exprs is empty).
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if o.base_type_exprs:
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if o.info and o.info.bases:
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if (len(o.info.bases) != 1
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or o.info.bases[0].type.fullname != 'builtins.object'):
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a.insert(1, ('BaseType', o.info.bases))
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else:
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a.insert(1, ('BaseTypeExpr', o.base_type_exprs))
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if o.type_vars:
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a.insert(1, ('TypeVars', o.type_vars))
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if o.metaclass:
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a.insert(1, f'Metaclass({o.metaclass})')
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if o.decorators:
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a.insert(1, ('Decorators', o.decorators))
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if o.info and o.info._promote:
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a.insert(1, f'Promote({o.info._promote})')
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if o.info and o.info.tuple_type:
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a.insert(1, ('TupleType', [o.info.tuple_type]))
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if o.info and o.info.fallback_to_any:
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a.insert(1, 'FallbackToAny')
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return self.dump(a, o)
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def visit_var(self, o: 'mypy.nodes.Var') -> str:
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lst = ''
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# Add :nil line number tag if no line number is specified to remain
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# compatible with old test case descriptions that assume this.
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if o.line < 0:
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lst = ':nil'
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return 'Var' + lst + '(' + o.name + ')'
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def visit_global_decl(self, o: 'mypy.nodes.GlobalDecl') -> str:
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return self.dump([o.names], o)
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def visit_nonlocal_decl(self, o: 'mypy.nodes.NonlocalDecl') -> str:
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return self.dump([o.names], o)
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def visit_decorator(self, o: 'mypy.nodes.Decorator') -> str:
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return self.dump([o.var, o.decorators, o.func], o)
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# Statements
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def visit_block(self, o: 'mypy.nodes.Block') -> str:
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return self.dump(o.body, o)
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def visit_expression_stmt(self, o: 'mypy.nodes.ExpressionStmt') -> str:
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return self.dump([o.expr], o)
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def visit_assignment_stmt(self, o: 'mypy.nodes.AssignmentStmt') -> str:
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a: List[Any] = []
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if len(o.lvalues) > 1:
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a = [('Lvalues', o.lvalues)]
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else:
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a = [o.lvalues[0]]
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a.append(o.rvalue)
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if o.type:
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a.append(o.type)
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return self.dump(a, o)
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def visit_operator_assignment_stmt(self, o: 'mypy.nodes.OperatorAssignmentStmt') -> str:
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return self.dump([o.op, o.lvalue, o.rvalue], o)
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def visit_while_stmt(self, o: 'mypy.nodes.WhileStmt') -> str:
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a: List[Any] = [o.expr, o.body]
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if o.else_body:
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a.append(('Else', o.else_body.body))
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return self.dump(a, o)
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def visit_for_stmt(self, o: 'mypy.nodes.ForStmt') -> str:
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a: List[Any] = []
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if o.is_async:
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a.append(('Async', ''))
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a.append(o.index)
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if o.index_type:
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a.append(o.index_type)
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a.extend([o.expr, o.body])
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if o.else_body:
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a.append(('Else', o.else_body.body))
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return self.dump(a, o)
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def visit_return_stmt(self, o: 'mypy.nodes.ReturnStmt') -> str:
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return self.dump([o.expr], o)
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def visit_if_stmt(self, o: 'mypy.nodes.IfStmt') -> str:
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a: List[Any] = []
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for i in range(len(o.expr)):
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a.append(('If', [o.expr[i]]))
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a.append(('Then', o.body[i].body))
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if not o.else_body:
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return self.dump(a, o)
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else:
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return self.dump([a, ('Else', o.else_body.body)], o)
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def visit_break_stmt(self, o: 'mypy.nodes.BreakStmt') -> str:
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return self.dump([], o)
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def visit_continue_stmt(self, o: 'mypy.nodes.ContinueStmt') -> str:
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return self.dump([], o)
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def visit_pass_stmt(self, o: 'mypy.nodes.PassStmt') -> str:
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return self.dump([], o)
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def visit_raise_stmt(self, o: 'mypy.nodes.RaiseStmt') -> str:
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return self.dump([o.expr, o.from_expr], o)
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def visit_assert_stmt(self, o: 'mypy.nodes.AssertStmt') -> str:
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if o.msg is not None:
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return self.dump([o.expr, o.msg], o)
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else:
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return self.dump([o.expr], o)
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def visit_await_expr(self, o: 'mypy.nodes.AwaitExpr') -> str:
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return self.dump([o.expr], o)
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def visit_del_stmt(self, o: 'mypy.nodes.DelStmt') -> str:
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return self.dump([o.expr], o)
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def visit_try_stmt(self, o: 'mypy.nodes.TryStmt') -> str:
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a: List[Any] = [o.body]
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for i in range(len(o.vars)):
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a.append(o.types[i])
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if o.vars[i]:
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a.append(o.vars[i])
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a.append(o.handlers[i])
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if o.else_body:
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a.append(('Else', o.else_body.body))
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if o.finally_body:
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a.append(('Finally', o.finally_body.body))
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return self.dump(a, o)
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def visit_with_stmt(self, o: 'mypy.nodes.WithStmt') -> str:
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a: List[Any] = []
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if o.is_async:
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a.append(('Async', ''))
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for i in range(len(o.expr)):
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a.append(('Expr', [o.expr[i]]))
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if o.target[i]:
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a.append(('Target', [o.target[i]]))
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if o.unanalyzed_type:
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a.append(o.unanalyzed_type)
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return self.dump(a + [o.body], o)
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def visit_print_stmt(self, o: 'mypy.nodes.PrintStmt') -> str:
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a: List[Any] = o.args[:]
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if o.target:
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a.append(('Target', [o.target]))
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if o.newline:
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a.append('Newline')
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return self.dump(a, o)
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def visit_exec_stmt(self, o: 'mypy.nodes.ExecStmt') -> str:
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return self.dump([o.expr, o.globals, o.locals], o)
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def visit_match_stmt(self, o: 'mypy.nodes.MatchStmt') -> str:
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a: List[Any] = [o.subject]
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for i in range(len(o.patterns)):
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a.append(('Pattern', [o.patterns[i]]))
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if o.guards[i] is not None:
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a.append(('Guard', [o.guards[i]]))
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a.append(('Body', o.bodies[i].body))
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return self.dump(a, o)
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# Expressions
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# Simple expressions
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def visit_int_expr(self, o: 'mypy.nodes.IntExpr') -> str:
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return f'IntExpr({o.value})'
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def visit_str_expr(self, o: 'mypy.nodes.StrExpr') -> str:
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return f'StrExpr({self.str_repr(o.value)})'
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def visit_bytes_expr(self, o: 'mypy.nodes.BytesExpr') -> str:
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return f'BytesExpr({self.str_repr(o.value)})'
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def visit_unicode_expr(self, o: 'mypy.nodes.UnicodeExpr') -> str:
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return f'UnicodeExpr({self.str_repr(o.value)})'
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def str_repr(self, s: str) -> str:
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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 f'FloatExpr({o.value})'
|
||
|
|
|
||
|
|
def visit_complex_expr(self, o: 'mypy.nodes.ComplexExpr') -> str:
|
||
|
|
return f'ComplexExpr({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 or o.is_special_form,
|
||
|
|
o.node)
|
||
|
|
if isinstance(o.node, mypy.nodes.Var) and o.node.is_final:
|
||
|
|
pretty += f' = {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 += f' [{fullname}{id}]'
|
||
|
|
elif kind == mypy.nodes.LDEF:
|
||
|
|
# Add tag to signify a local reference.
|
||
|
|
n += f' [l{id}]'
|
||
|
|
elif kind == mypy.nodes.MDEF:
|
||
|
|
# Add tag to signify a member reference.
|
||
|
|
n += f' [m{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: List[mypy.nodes.Expression] = []
|
||
|
|
extra: 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(f"unknown kind {kind}")
|
||
|
|
a: List[Any] = [o.callee, ("Args", args)]
|
||
|
|
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_assert_type_expr(self, o: 'mypy.nodes.AssertTypeExpr') -> 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_assignment_expr(self, o: 'mypy.nodes.AssignmentExpr') -> str:
|
||
|
|
return self.dump([o.target, o.value], 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: 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 += [f'UpperBound({o.upper_bound})']
|
||
|
|
return self.dump(a, o)
|
||
|
|
|
||
|
|
def visit_paramspec_expr(self, o: 'mypy.nodes.ParamSpecExpr') -> str:
|
||
|
|
import mypy.types
|
||
|
|
|
||
|
|
a: List[Any] = []
|
||
|
|
if o.variance == mypy.nodes.COVARIANT:
|
||
|
|
a += ['Variance(COVARIANT)']
|
||
|
|
if o.variance == mypy.nodes.CONTRAVARIANT:
|
||
|
|
a += ['Variance(CONTRAVARIANT)']
|
||
|
|
if not mypy.types.is_named_instance(o.upper_bound, 'builtins.object'):
|
||
|
|
a += [f'UpperBound({o.upper_bound})']
|
||
|
|
return self.dump(a, o)
|
||
|
|
|
||
|
|
def visit_type_var_tuple_expr(self, o: 'mypy.nodes.TypeVarTupleExpr') -> str:
|
||
|
|
import mypy.types
|
||
|
|
|
||
|
|
a: List[Any] = []
|
||
|
|
if o.variance == mypy.nodes.COVARIANT:
|
||
|
|
a += ['Variance(COVARIANT)']
|
||
|
|
if o.variance == mypy.nodes.CONTRAVARIANT:
|
||
|
|
a += ['Variance(CONTRAVARIANT)']
|
||
|
|
if not mypy.types.is_named_instance(o.upper_bound, 'builtins.object'):
|
||
|
|
a += [f'UpperBound({o.upper_bound})']
|
||
|
|
return self.dump(a, o)
|
||
|
|
|
||
|
|
def visit_type_alias_expr(self, o: 'mypy.nodes.TypeAliasExpr') -> str:
|
||
|
|
return f'TypeAliasExpr({o.type})'
|
||
|
|
|
||
|
|
def visit_namedtuple_expr(self, o: 'mypy.nodes.NamedTupleExpr') -> str:
|
||
|
|
return f'NamedTupleExpr:{o.line}({o.info.name}, {o.info.tuple_type})'
|
||
|
|
|
||
|
|
def visit_enum_call_expr(self, o: 'mypy.nodes.EnumCallExpr') -> str:
|
||
|
|
return f'EnumCallExpr:{o.line}({o.info.name}, {o.items})'
|
||
|
|
|
||
|
|
def visit_typeddict_expr(self, o: 'mypy.nodes.TypedDictExpr') -> str:
|
||
|
|
return f'TypedDictExpr:{o.line}({o.info.name})'
|
||
|
|
|
||
|
|
def visit__promote_expr(self, o: 'mypy.nodes.PromoteExpr') -> str:
|
||
|
|
return f'PromoteExpr:{o.line}({o.type})'
|
||
|
|
|
||
|
|
def visit_newtype_expr(self, o: 'mypy.nodes.NewTypeExpr') -> str:
|
||
|
|
return f'NewTypeExpr:{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: List[Any] = [o.begin_index, o.end_index, o.stride]
|
||
|
|
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)
|
||
|
|
|
||
|
|
def visit_as_pattern(self, o: 'mypy.patterns.AsPattern') -> str:
|
||
|
|
return self.dump([o.pattern, o.name], o)
|
||
|
|
|
||
|
|
def visit_or_pattern(self, o: 'mypy.patterns.OrPattern') -> str:
|
||
|
|
return self.dump(o.patterns, o)
|
||
|
|
|
||
|
|
def visit_value_pattern(self, o: 'mypy.patterns.ValuePattern') -> str:
|
||
|
|
return self.dump([o.expr], o)
|
||
|
|
|
||
|
|
def visit_singleton_pattern(self, o: 'mypy.patterns.SingletonPattern') -> str:
|
||
|
|
return self.dump([o.value], o)
|
||
|
|
|
||
|
|
def visit_sequence_pattern(self, o: 'mypy.patterns.SequencePattern') -> str:
|
||
|
|
return self.dump(o.patterns, o)
|
||
|
|
|
||
|
|
def visit_starred_pattern(self, o: 'mypy.patterns.StarredPattern') -> str:
|
||
|
|
return self.dump([o.capture], o)
|
||
|
|
|
||
|
|
def visit_mapping_pattern(self, o: 'mypy.patterns.MappingPattern') -> str:
|
||
|
|
a: List[Any] = []
|
||
|
|
for i in range(len(o.keys)):
|
||
|
|
a.append(('Key', [o.keys[i]]))
|
||
|
|
a.append(('Value', [o.values[i]]))
|
||
|
|
if o.rest is not None:
|
||
|
|
a.append(('Rest', [o.rest]))
|
||
|
|
return self.dump(a, o)
|
||
|
|
|
||
|
|
def visit_class_pattern(self, o: 'mypy.patterns.ClassPattern') -> str:
|
||
|
|
a: List[Any] = [o.class_ref]
|
||
|
|
if len(o.positionals) > 0:
|
||
|
|
a.append(('Positionals', o.positionals))
|
||
|
|
for i in range(len(o.keyword_keys)):
|
||
|
|
a.append(('Keyword', [o.keyword_keys[i], o.keyword_values[i]]))
|
||
|
|
|
||
|
|
return self.dump(a, o)
|
||
|
|
|
||
|
|
|
||
|
|
def dump_tagged(nodes: Sequence[object], tag: Optional[str], str_conv: 'StrConv') -> str:
|
||
|
|
"""Convert an array into a pretty-printed multiline string representation.
|
||
|
|
|
||
|
|
The format is
|
||
|
|
tag(
|
||
|
|
item1..
|
||
|
|
itemN)
|
||
|
|
Individual items are formatted like this:
|
||
|
|
- arrays are flattened
|
||
|
|
- pairs (str, array) are converted recursively, so that str is the tag
|
||
|
|
- other items are converted to strings and indented
|
||
|
|
"""
|
||
|
|
from mypy.types import Type, TypeStrVisitor
|
||
|
|
|
||
|
|
a: List[str] = []
|
||
|
|
if tag:
|
||
|
|
a.append(tag + '(')
|
||
|
|
for n in nodes:
|
||
|
|
if isinstance(n, list):
|
||
|
|
if n:
|
||
|
|
a.append(dump_tagged(n, None, str_conv))
|
||
|
|
elif isinstance(n, tuple):
|
||
|
|
s = dump_tagged(n[1], n[0], str_conv)
|
||
|
|
a.append(indent(s, 2))
|
||
|
|
elif isinstance(n, mypy.nodes.Node):
|
||
|
|
a.append(indent(n.accept(str_conv), 2))
|
||
|
|
elif isinstance(n, Type):
|
||
|
|
a.append(indent(n.accept(TypeStrVisitor(str_conv.id_mapper)), 2))
|
||
|
|
elif n is not None:
|
||
|
|
a.append(indent(str(n), 2))
|
||
|
|
if tag:
|
||
|
|
a[-1] += ')'
|
||
|
|
return '\n'.join(a)
|
||
|
|
|
||
|
|
|
||
|
|
def indent(s: str, n: int) -> str:
|
||
|
|
"""Indent all the lines in s (separated by newlines) by n spaces."""
|
||
|
|
s = ' ' * n + s
|
||
|
|
s = s.replace('\n', '\n' + ' ' * n)
|
||
|
|
return s
|