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unparser: rename _Class() methods to visit_Class() to mirror upstream

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These are refactors that have happened in upstream `ast.unparse()`
This commit is contained in:
Todd Gamblin
2022-01-03 14:57:45 -08:00
committed by Greg Becker
parent ec16c2d7c2
commit 0370324f1f
1 changed files with 75 additions and 75 deletions
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150
lib/spack/spack/util/unparse/unparser.py
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@@ -198,7 +198,7 @@ def dispatch(self, tree):
for t in tree:
self.dispatch(t)
return
meth = getattr(self, "_" + tree.__class__.__name__)
meth = getattr(self, "visit_" + tree.__class__.__name__)
meth(tree)
#
@@ -208,35 +208,35 @@ def dispatch(self, tree):
# should be # grouped by sum type. Ideally, this would follow the order
# in the grammar, but currently doesn't.
def _Module(self, tree):
def visit_Module(self, tree):
for stmt in tree.body:
self.dispatch(stmt)
def _Interactive(self, tree):
def visit_Interactive(self, tree):
for stmt in tree.body:
self.dispatch(stmt)
def _Expression(self, tree):
def visit_Expression(self, tree):
self.dispatch(tree.body)
# stmt
def _Expr(self, tree):
def visit_Expr(self, tree):
self.fill()
self.set_precedence(_Precedence.YIELD, tree.value)
self.dispatch(tree.value)
def _NamedExpr(self, tree):
def visit_NamedExpr(self, tree):
with self.require_parens(_Precedence.TUPLE, tree):
self.set_precedence(_Precedence.ATOM, tree.target, tree.value)
self.dispatch(tree.target)
self.write(" := ")
self.dispatch(tree.value)
def _Import(self, t):
def visit_Import(self, t):
self.fill("import ")
interleave(lambda: self.write(", "), self.dispatch, t.names)
def _ImportFrom(self, t):
def visit_ImportFrom(self, t):
# A from __future__ import may affect unparsing, so record it.
if t.module and t.module == '__future__':
self.future_imports.extend(n.name for n in t.names)
@@ -248,20 +248,20 @@ def _ImportFrom(self, t):
self.write(" import ")
interleave(lambda: self.write(", "), self.dispatch, t.names)
def _Assign(self, t):
def visit_Assign(self, t):
self.fill()
for target in t.targets:
self.dispatch(target)
self.write(" = ")
self.dispatch(t.value)
def _AugAssign(self, t):
def visit_AugAssign(self, t):
self.fill()
self.dispatch(t.target)
self.write(" " + self.binop[t.op.__class__.__name__] + "= ")
self.dispatch(t.value)
def _AnnAssign(self, t):
def visit_AnnAssign(self, t):
self.fill()
with self.delimit_if(
"(", ")", not t.simple and isinstance(t.target, ast.Name)):
@@ -272,33 +272,33 @@ def _AnnAssign(self, t):
self.write(" = ")
self.dispatch(t.value)
def _Return(self, t):
def visit_Return(self, t):
self.fill("return")
if t.value:
self.write(" ")
self.dispatch(t.value)
def _Pass(self, t):
def visit_Pass(self, t):
self.fill("pass")
def _Break(self, t):
def visit_Break(self, t):
self.fill("break")
def _Continue(self, t):
def visit_Continue(self, t):
self.fill("continue")
def _Delete(self, t):
def visit_Delete(self, t):
self.fill("del ")
interleave(lambda: self.write(", "), self.dispatch, t.targets)
def _Assert(self, t):
def visit_Assert(self, t):
self.fill("assert ")
self.dispatch(t.test)
if t.msg:
self.write(", ")
self.dispatch(t.msg)
def _Exec(self, t):
def visit_Exec(self, t):
self.fill("exec ")
self.dispatch(t.body)
if t.globals:
@@ -308,7 +308,7 @@ def _Exec(self, t):
self.write(", ")
self.dispatch(t.locals)
def _Print(self, t):
def visit_Print(self, t):
# Use print function so that python 2 unparsing is consistent with 3
if self._py_ver_consistent:
self.fill("print")
@@ -363,15 +363,15 @@ def _Print(self, t):
if not t.nl:
self.write(",")
def _Global(self, t):
def visit_Global(self, t):
self.fill("global ")
interleave(lambda: self.write(", "), self.write, t.names)
def _Nonlocal(self, t):
def visit_Nonlocal(self, t):
self.fill("nonlocal ")
interleave(lambda: self.write(", "), self.write, t.names)
def _Await(self, t):
def visit_Await(self, t):
with self.require_parens(_Precedence.AWAIT, t):
self.write("await")
if t.value:
@@ -379,7 +379,7 @@ def _Await(self, t):
self.set_precedence(_Precedence.ATOM, t.value)
self.dispatch(t.value)
def _Yield(self, t):
def visit_Yield(self, t):
with self.require_parens(_Precedence.YIELD, t):
self.write("yield")
if t.value:
@@ -387,7 +387,7 @@ def _Yield(self, t):
self.set_precedence(_Precedence.ATOM, t.value)
self.dispatch(t.value)
def _YieldFrom(self, t):
def visit_YieldFrom(self, t):
with self.require_parens(_Precedence.YIELD, t):
self.write("yield from")
if t.value:
@@ -395,7 +395,7 @@ def _YieldFrom(self, t):
self.set_precedence(_Precedence.ATOM, t.value)
self.dispatch(t.value)
def _Raise(self, t):
def visit_Raise(self, t):
self.fill("raise")
if six.PY3:
if not t.exc:
@@ -417,7 +417,7 @@ def _Raise(self, t):
self.write(", ")
self.dispatch(t.tback)
def _Try(self, t):
def visit_Try(self, t):
self.fill("try")
with self.block():
self.dispatch(t.body)
@@ -432,7 +432,7 @@ def _Try(self, t):
with self.block():
self.dispatch(t.finalbody)
def _TryExcept(self, t):
def visit_TryExcept(self, t):
self.fill("try")
with self.block():
self.dispatch(t.body)
@@ -444,7 +444,7 @@ def _TryExcept(self, t):
with self.block():
self.dispatch(t.orelse)
def _TryFinally(self, t):
def visit_TryFinally(self, t):
if len(t.body) == 1 and isinstance(t.body[0], ast.TryExcept):
# try-except-finally
self.dispatch(t.body)
@@ -457,7 +457,7 @@ def _TryFinally(self, t):
with self.block():
self.dispatch(t.finalbody)
def _ExceptHandler(self, t):
def visit_ExceptHandler(self, t):
self.fill("except")
if t.type:
self.write(" ")
@@ -471,7 +471,7 @@ def _ExceptHandler(self, t):
with self.block():
self.dispatch(t.body)
def _ClassDef(self, t):
def visit_ClassDef(self, t):
self.write("\n")
for deco in t.decorator_list:
self.fill("@")
@@ -516,10 +516,10 @@ def _ClassDef(self, t):
with self.block():
self.dispatch(t.body)
def _FunctionDef(self, t):
def visit_FunctionDef(self, t):
self.__FunctionDef_helper(t, "def")
def _AsyncFunctionDef(self, t):
def visit_AsyncFunctionDef(self, t):
self.__FunctionDef_helper(t, "async def")
def __FunctionDef_helper(self, t, fill_suffix):
@@ -537,10 +537,10 @@ def __FunctionDef_helper(self, t, fill_suffix):
with self.block():
self.dispatch(t.body)
def _For(self, t):
def visit_For(self, t):
self.__For_helper("for ", t)
def _AsyncFor(self, t):
def visit_AsyncFor(self, t):
self.__For_helper("async for ", t)
def __For_helper(self, fill, t):
@@ -555,7 +555,7 @@ def __For_helper(self, fill, t):
with self.block():
self.dispatch(t.orelse)
def _If(self, t):
def visit_If(self, t):
self.fill("if ")
self.dispatch(t.test)
with self.block():
@@ -574,7 +574,7 @@ def _If(self, t):
with self.block():
self.dispatch(t.orelse)
def _While(self, t):
def visit_While(self, t):
self.fill("while ")
self.dispatch(t.test)
with self.block():
@@ -596,10 +596,10 @@ def _generic_With(self, t, async_=False):
with self.block():
self.dispatch(t.body)
def _With(self, t):
def visit_With(self, t):
self._generic_With(t)
def _AsyncWith(self, t):
def visit_AsyncWith(self, t):
self._generic_With(t, async_=True)
def _str_literal_helper(
@@ -650,10 +650,10 @@ def _write_str_avoiding_backslashes(self, string, quote_types=_ALL_QUOTES):
))
# expr
def _Bytes(self, t):
def visit_Bytes(self, t):
self.write(repr(t.s))
def _Str(self, tree):
def visit_Str(self, tree):
if six.PY3:
# Python 3.5, 3.6, and 3.7 can't tell if something was written as a
# unicode constant. Try to make that consistent with 'u' for '\u- literals
@@ -675,7 +675,7 @@ def _Str(self, tree):
else:
assert False, "shouldn't get here"
def _JoinedStr(self, t):
def visit_JoinedStr(self, t):
# JoinedStr(expr* values)
self.write("f")
@@ -713,7 +713,7 @@ def _JoinedStr(self, t):
value=value,
))
def _FormattedValue(self, t):
def visit_FormattedValue(self, t):
# FormattedValue(expr value, int? conversion, expr? format_spec)
self.write("f")
string = StringIO()
@@ -763,13 +763,13 @@ def _fstring_FormattedValue(self, t, write):
meth(t.format_spec, write)
write("}")
def _Name(self, t):
def visit_Name(self, t):
self.write(t.id)
def _NameConstant(self, t):
def visit_NameConstant(self, t):
self.write(repr(t.value))
def _Repr(self, t):
def visit_Repr(self, t):
self.write("`")
self.dispatch(t.value)
self.write("`")
@@ -790,7 +790,7 @@ def _write_constant(self, value):
else:
self.write(repr(value))
def _Constant(self, t):
def visit_Constant(self, t):
value = t.value
if isinstance(value, tuple):
with self.delimit("(", ")"):
@@ -802,7 +802,7 @@ def _Constant(self, t):
self.write("u")
self._write_constant(t.value)
def _Num(self, t):
def visit_Num(self, t):
repr_n = repr(t.n)
if six.PY3:
self.write(repr_n.replace("inf", INFSTR))
@@ -814,29 +814,29 @@ def _Num(self, t):
# Substitute overflowing decimal literal for AST infinities.
self.write(repr_n.replace("inf", INFSTR))
def _List(self, t):
def visit_List(self, t):
with self.delimit("[", "]"):
interleave(lambda: self.write(", "), self.dispatch, t.elts)
def _ListComp(self, t):
def visit_ListComp(self, t):
with self.delimit("[", "]"):
self.dispatch(t.elt)
for gen in t.generators:
self.dispatch(gen)
def _GeneratorExp(self, t):
def visit_GeneratorExp(self, t):
with self.delimit("(", ")"):
self.dispatch(t.elt)
for gen in t.generators:
self.dispatch(gen)
def _SetComp(self, t):
def visit_SetComp(self, t):
with self.delimit("{", "}"):
self.dispatch(t.elt)
for gen in t.generators:
self.dispatch(gen)
def _DictComp(self, t):
def visit_DictComp(self, t):
with self.delimit("{", "}"):
self.dispatch(t.key)
self.write(": ")
@@ -844,7 +844,7 @@ def _DictComp(self, t):
for gen in t.generators:
self.dispatch(gen)
def _comprehension(self, t):
def visit_comprehension(self, t):
if getattr(t, 'is_async', False):
self.write(" async for ")
else:
@@ -858,7 +858,7 @@ def _comprehension(self, t):
self.write(" if ")
self.dispatch(if_clause)
def _IfExp(self, t):
def visit_IfExp(self, t):
with self.require_parens(_Precedence.TEST, t):
self.set_precedence(pnext(_Precedence.TEST), t.body, t.test)
self.dispatch(t.body)
@@ -868,12 +868,12 @@ def _IfExp(self, t):
self.set_precedence(_Precedence.TEST, t.orelse)
self.dispatch(t.orelse)
def _Set(self, t):
def visit_Set(self, t):
assert(t.elts) # should be at least one element
with self.delimit("{", "}"):
interleave(lambda: self.write(", "), self.dispatch, t.elts)
def _Dict(self, t):
def visit_Dict(self, t):
def write_key_value_pair(k, v):
self.dispatch(k)
self.write(": ")
@@ -893,7 +893,7 @@ def write_item(item):
with self.delimit("{", "}"):
interleave(lambda: self.write(", "), write_item, zip(t.keys, t.values))
def _Tuple(self, t):
def visit_Tuple(self, t):
with self.delimit("(", ")"):
self.items_view(self.dispatch, t.elts)
@@ -911,7 +911,7 @@ def _Tuple(self, t):
"-": _Precedence.FACTOR,
}
def _UnaryOp(self, t):
def visit_UnaryOp(self, t):
operator = self.unop[t.op.__class__.__name__]
operator_precedence = self.unop_precedence[operator]
with self.require_parens(operator_precedence, t):
@@ -968,7 +968,7 @@ def _UnaryOp(self, t):
binop_rassoc = frozenset(("**",))
def _BinOp(self, t):
def visit_BinOp(self, t):
operator = self.binop[t.op.__class__.__name__]
operator_precedence = self.binop_precedence[operator]
with self.require_parens(operator_precedence, t):
@@ -998,7 +998,7 @@ def _BinOp(self, t):
"NotIn": "not in",
}
def _Compare(self, t):
def visit_Compare(self, t):
with self.require_parens(_Precedence.CMP, t):
self.set_precedence(pnext(_Precedence.CMP), t.left, *t.comparators)
self.dispatch(t.left)
@@ -1016,7 +1016,7 @@ def _Compare(self, t):
"or": _Precedence.OR,
}
def _BoolOp(self, t):
def visit_BoolOp(self, t):
operator = self.boolops[t.op.__class__.__name__]
# use a dict instead of nonlocal for Python 2 compatibility
@@ -1031,7 +1031,7 @@ def increasing_level_dispatch(t):
s = " %s " % operator
interleave(lambda: self.write(s), increasing_level_dispatch, t.values)
def _Attribute(self, t):
def visit_Attribute(self, t):
self.set_precedence(_Precedence.ATOM, t.value)
self.dispatch(t.value)
# Special case: 3.__abs__() is a syntax error, so if t.value
@@ -1043,7 +1043,7 @@ def _Attribute(self, t):
self.write(".")
self.write(t.attr)
def _Call(self, t):
def visit_Call(self, t):
self.set_precedence(_Precedence.ATOM, t.func)
args = t.args
@@ -1107,7 +1107,7 @@ def _Call(self, t):
self.write("**")
self.dispatch(t.kwargs)
def _Subscript(self, t):
def visit_Subscript(self, t):
self.set_precedence(_Precedence.ATOM, t.value)
self.dispatch(t.value)
with self.delimit("[", "]"):
@@ -1116,17 +1116,17 @@ def _Subscript(self, t):
else:
self.dispatch(t.slice)
def _Starred(self, t):
def visit_Starred(self, t):
self.write("*")
self.set_precedence(_Precedence.EXPR, t.value)
self.dispatch(t.value)
# slice
def _Ellipsis(self, t):
def visit_Ellipsis(self, t):
self.write("...")
# used in Python <= 3.8 -- see _Subscript for 3.9+
def _Index(self, t):
def visit_Index(self, t):
if is_simple_tuple(t.value):
self.set_precedence(_Precedence.ATOM, t.value)
self.items_view(self.dispatch, t.value.elts)
@@ -1134,7 +1134,7 @@ def _Index(self, t):
self.set_precedence(_Precedence.TUPLE, t.value)
self.dispatch(t.value)
def _Slice(self, t):
def visit_Slice(self, t):
if t.lower:
self.dispatch(t.lower)
self.write(":")
@@ -1144,18 +1144,18 @@ def _Slice(self, t):
self.write(":")
self.dispatch(t.step)
def _ExtSlice(self, t):
def visit_ExtSlice(self, t):
interleave(lambda: self.write(', '), self.dispatch, t.dims)
# argument
def _arg(self, t):
def visit_arg(self, t):
self.write(t.arg)
if t.annotation:
self.write(": ")
self.dispatch(t.annotation)
# others
def _arguments(self, t):
def visit_arguments(self, t):
first = True
# normal arguments
all_args = getattr(t, 'posonlyargs', []) + t.args
@@ -1221,7 +1221,7 @@ def _arguments(self, t):
self.write(": ")
self.dispatch(t.kwargannotation)
def _keyword(self, t):
def visit_keyword(self, t):
if t.arg is None:
# starting from Python 3.5 this denotes a kwargs part of the invocation
self.write("**")
@@ -1230,7 +1230,7 @@ def _keyword(self, t):
self.write("=")
self.dispatch(t.value)
def _Lambda(self, t):
def visit_Lambda(self, t):
with self.require_parens(_Precedence.TEST, t):
self.write("lambda ")
self.dispatch(t.args)
@@ -1238,12 +1238,12 @@ def _Lambda(self, t):
self.set_precedence(_Precedence.TEST, t.body)
self.dispatch(t.body)
def _alias(self, t):
def visit_alias(self, t):
self.write(t.name)
if t.asname:
self.write(" as " + t.asname)
def _withitem(self, t):
def visit_withitem(self, t):
self.dispatch(t.context_expr)
if t.optional_vars:
self.write(" as ")