Remove support for cons cells
This commit is contained in:
Kodi Arfer
parent
097647bf6f
commit
c93a60ede0
|
|
@ -5,7 +5,7 @@ except ImportError:
|
|||
__version__ = 'unknown'
|
||||
|
||||
|
||||
from hy.models import HyExpression, HyInteger, HyKeyword, HyComplex, HyString, HyBytes, HySymbol, HyFloat, HyDict, HyList, HySet, HyCons # NOQA
|
||||
from hy.models import HyExpression, HyInteger, HyKeyword, HyComplex, HyString, HyBytes, HySymbol, HyFloat, HyDict, HyList, HySet # NOQA
|
||||
|
||||
|
||||
import hy.importer # NOQA
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@
|
|||
|
||||
from hy.models import (HyObject, HyExpression, HyKeyword, HyInteger, HyComplex,
|
||||
HyString, HyBytes, HySymbol, HyFloat, HyList, HySet,
|
||||
HyDict, HyCons, wrap_value)
|
||||
HyDict, wrap_value)
|
||||
from hy.errors import HyCompileError, HyTypeError
|
||||
|
||||
from hy.lex.parser import mangle
|
||||
|
|
@ -89,7 +89,7 @@ def builds(*types, **kwargs):
|
|||
|
||||
|
||||
def spoof_positions(obj):
|
||||
if not isinstance(obj, HyObject) or isinstance(obj, HyCons):
|
||||
if not isinstance(obj, HyObject):
|
||||
return
|
||||
if not hasattr(obj, "start_column"):
|
||||
obj.start_column = 0
|
||||
|
|
@ -719,24 +719,6 @@ class HyASTCompiler(object):
|
|||
return imports, HyExpression([HySymbol(name),
|
||||
contents]).replace(form), False
|
||||
|
||||
elif isinstance(form, HyCons):
|
||||
ret = HyExpression([HySymbol(name)])
|
||||
nimport, contents, splice = self._render_quoted_form(form.car,
|
||||
level)
|
||||
if splice:
|
||||
raise HyTypeError(form, "Can't splice dotted lists yet")
|
||||
imports.update(nimport)
|
||||
ret.append(contents)
|
||||
|
||||
nimport, contents, splice = self._render_quoted_form(form.cdr,
|
||||
level)
|
||||
if splice:
|
||||
raise HyTypeError(form, "Can't splice the cdr of a cons")
|
||||
imports.update(nimport)
|
||||
ret.append(contents)
|
||||
|
||||
return imports, ret.replace(form), False
|
||||
|
||||
elif isinstance(form, HySymbol):
|
||||
return imports, HyExpression([HySymbol(name),
|
||||
HyString(form)]).replace(form), False
|
||||
|
|
@ -2131,10 +2113,6 @@ class HyASTCompiler(object):
|
|||
if building == "eval_and_compile"
|
||||
else Result())
|
||||
|
||||
@builds(HyCons)
|
||||
def compile_cons(self, cons):
|
||||
raise HyTypeError(cons, "Can't compile a top-level cons cell")
|
||||
|
||||
@builds(HyInteger, HyFloat, HyComplex)
|
||||
def compile_numeric_literal(self, x, building):
|
||||
f = {HyInteger: long_type,
|
||||
|
|
|
|||
|
|
@ -18,9 +18,6 @@
|
|||
(outer (HyExpression (map inner form)))]
|
||||
[(instance? HyDict form)
|
||||
(HyDict (outer (HyExpression (map inner form))))]
|
||||
[(cons? form)
|
||||
(outer (cons (inner (first form))
|
||||
(inner (rest form))))]
|
||||
[(instance? list form)
|
||||
((type form) (outer (HyExpression (map inner form))))]
|
||||
[(coll? form)
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@
|
|||
(if-python2
|
||||
(import [collections :as cabc])
|
||||
(import [collections.abc :as cabc]))
|
||||
(import [hy.models [HyCons HySymbol HyKeyword]])
|
||||
(import [hy.models [HySymbol HyKeyword]])
|
||||
(import [hy.lex [LexException PrematureEndOfInput tokenize]])
|
||||
(import [hy.lex.parser [mangle unmangle]])
|
||||
(import [hy.compiler [HyASTCompiler spoof-positions]])
|
||||
|
|
@ -50,14 +50,6 @@
|
|||
(fn [&rest args &kwargs kwargs]
|
||||
(not (f #* args #** kwargs))))
|
||||
|
||||
(defn cons [a b]
|
||||
"Return a fresh cons cell with car = `a` and cdr = `b`."
|
||||
(HyCons a b))
|
||||
|
||||
(defn cons? [c]
|
||||
"Check whether `c` is a cons cell."
|
||||
(instance? HyCons c))
|
||||
|
||||
(defn constantly [value]
|
||||
"Create a new function that always returns `value` regardless of its input."
|
||||
(fn [&rest args &kwargs kwargs]
|
||||
|
|
@ -294,7 +286,7 @@ Return series of accumulated sums (or other binary function results)."
|
|||
|
||||
(defn juxt [f &rest fs]
|
||||
"Return a function applying each `fs` to args, collecting results in a list."
|
||||
(setv fs (cons f fs))
|
||||
(setv fs (+ (, f) fs))
|
||||
(fn [&rest args &kwargs kwargs]
|
||||
(list-comp (f #* args #** kwargs) [f fs])))
|
||||
|
||||
|
|
@ -302,12 +294,6 @@ Return series of accumulated sums (or other binary function results)."
|
|||
"Return last item from `coll`."
|
||||
(get (tuple coll) -1))
|
||||
|
||||
(defn list* [hd &rest tl]
|
||||
"Return a chain of nested cons cells (dotted list) containing `hd` and `tl`."
|
||||
(if (not tl)
|
||||
hd
|
||||
(cons hd (list* #* tl))))
|
||||
|
||||
(defn macroexpand [form]
|
||||
"Return the full macro expansion of `form`."
|
||||
(import hy.macros)
|
||||
|
|
@ -488,11 +474,11 @@ Even objects with the __name__ magic will work."
|
|||
|
||||
(setv EXPORTS
|
||||
'[*map accumulate butlast calling-module-name chain coll? combinations
|
||||
comp complement compress cons cons? constantly count cycle dec distinct
|
||||
comp complement compress constantly count cycle dec distinct
|
||||
disassemble drop drop-last drop-while empty? eval even? every? exec first
|
||||
filter flatten float? fraction gensym group-by identity inc input instance?
|
||||
integer integer? integer-char? interleave interpose islice iterable?
|
||||
iterate iterator? juxt keyword keyword? last list* macroexpand
|
||||
iterate iterator? juxt keyword keyword? last macroexpand
|
||||
macroexpand-1 mangle map merge-with multicombinations name neg? none? nth
|
||||
numeric? odd? partition permutations pos? product range read read-str
|
||||
remove repeat repeatedly rest reduce second some string string? symbol?
|
||||
|
|
|
|||
|
|
@ -11,9 +11,8 @@ import string, re, unicodedata
|
|||
from rply import ParserGenerator
|
||||
|
||||
from hy._compat import PY3, str_type, isidentifier, UCS4
|
||||
from hy.models import (HyBytes, HyComplex, HyCons, HyDict, HyExpression,
|
||||
HyFloat, HyInteger, HyKeyword, HyList, HySet, HyString,
|
||||
HySymbol)
|
||||
from hy.models import (HyBytes, HyComplex, HyDict, HyExpression, HyFloat,
|
||||
HyInteger, HyKeyword, HyList, HySet, HyString, HySymbol)
|
||||
from .lexer import lexer
|
||||
from .exceptions import LexException, PrematureEndOfInput
|
||||
|
||||
|
|
@ -151,28 +150,6 @@ def reject_spurious_dots(*items):
|
|||
@pg.production("paren : LPAREN list_contents RPAREN")
|
||||
@set_boundaries
|
||||
def paren(p):
|
||||
cont = p[1]
|
||||
|
||||
# Dotted lists are expressions of the form
|
||||
# (a b c . d)
|
||||
# that evaluate to nested cons cells of the form
|
||||
# (a . (b . (c . d)))
|
||||
if len(cont) >= 3 and isinstance(cont[-2], HySymbol) and cont[-2] == ".":
|
||||
|
||||
reject_spurious_dots(cont[:-2], cont[-1:])
|
||||
|
||||
if len(cont) == 3:
|
||||
# Two-item dotted list: return the cons cell directly
|
||||
return HyCons(cont[0], cont[2])
|
||||
else:
|
||||
# Return a nested cons cell
|
||||
return HyCons(cont[0], paren([p[0], cont[1:], p[2]]))
|
||||
|
||||
# Warn preemptively on a malformed dotted list.
|
||||
# Only check for dots after the first item to allow for a potential
|
||||
# attribute accessor shorthand
|
||||
reject_spurious_dots(cont[1:])
|
||||
|
||||
return HyExpression(p[1])
|
||||
|
||||
|
||||
|
|
|
|||
98
hy/models.py
98
hy/models.py
|
|
@ -334,101 +334,3 @@ class HySet(HyList):
|
|||
color = staticmethod(colored.red)
|
||||
|
||||
_wrappers[set] = lambda s: HySet(wrap_value(x) for x in s)
|
||||
|
||||
|
||||
class HyCons(HyObject):
|
||||
"""
|
||||
HyCons: a cons object.
|
||||
|
||||
Building a HyCons of something and a HyList really builds a HyList
|
||||
"""
|
||||
|
||||
__slots__ = ["car", "cdr"]
|
||||
|
||||
def __new__(cls, car, cdr):
|
||||
if isinstance(cdr, list):
|
||||
|
||||
# Keep unquotes in the cdr of conses
|
||||
if type(cdr) == HyExpression:
|
||||
if len(cdr) > 0 and type(cdr[0]) == HySymbol:
|
||||
if cdr[0] in ("unquote", "unquote-splice"):
|
||||
return super(HyCons, cls).__new__(cls)
|
||||
|
||||
return cdr.__class__([wrap_value(car)] + cdr)
|
||||
|
||||
elif cdr is None:
|
||||
return HyExpression([wrap_value(car)])
|
||||
|
||||
else:
|
||||
return super(HyCons, cls).__new__(cls)
|
||||
|
||||
def __init__(self, car, cdr):
|
||||
self.car = wrap_value(car)
|
||||
self.cdr = wrap_value(cdr)
|
||||
|
||||
def __getitem__(self, n):
|
||||
if n == 0:
|
||||
return self.car
|
||||
if n == slice(1, None):
|
||||
return self.cdr
|
||||
|
||||
raise IndexError(
|
||||
"Can only get the car ([0]) or the cdr ([1:]) of a HyCons")
|
||||
|
||||
def __setitem__(self, n, new):
|
||||
if n == 0:
|
||||
self.car = new
|
||||
return
|
||||
if n == slice(1, None):
|
||||
self.cdr = new
|
||||
return
|
||||
|
||||
raise IndexError(
|
||||
"Can only set the car ([0]) or the cdr ([1:]) of a HyCons")
|
||||
|
||||
def __iter__(self):
|
||||
yield self.car
|
||||
try:
|
||||
iterator = (i for i in self.cdr)
|
||||
except TypeError:
|
||||
if self.cdr is not None:
|
||||
yield self.cdr
|
||||
raise TypeError("Iteration on malformed cons")
|
||||
else:
|
||||
for i in iterator:
|
||||
yield i
|
||||
|
||||
def replace(self, other):
|
||||
if self.car is not None:
|
||||
replace_hy_obj(self.car, other)
|
||||
if self.cdr is not None:
|
||||
replace_hy_obj(self.cdr, other)
|
||||
|
||||
HyObject.replace(self, other)
|
||||
|
||||
def __repr__(self):
|
||||
if PRETTY:
|
||||
return str(self)
|
||||
else:
|
||||
return "HyCons({}, {})".format(
|
||||
repr(self.car), repr(self.cdr))
|
||||
|
||||
def __str__(self):
|
||||
with pretty():
|
||||
c = colored.yellow
|
||||
lines = ['' + c("<HyCons (")]
|
||||
while True:
|
||||
lines.append(" " + repr_indent(self.car))
|
||||
if not isinstance(self.cdr, HyCons):
|
||||
break
|
||||
self = self.cdr
|
||||
lines.append("{} {}{}".format(
|
||||
c("."), repr_indent(self.cdr), c(")>")))
|
||||
return '\n'.join(lines)
|
||||
|
||||
def __eq__(self, other):
|
||||
return (
|
||||
isinstance(other, self.__class__) and
|
||||
self.car == other.car and
|
||||
self.cdr == other.cdr
|
||||
)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user