From 510ad53c71176c02890896f42e0432925b267a67 Mon Sep 17 00:00:00 2001 From: Nicolas Dandrimont Date: Tue, 30 Apr 2013 20:13:00 +0200 Subject: [PATCH] mangles kthxbye --- hy/core/__init__.py | 1 - hy/core/mangles.py | 120 -------------------------------------------- 2 files changed, 121 deletions(-) delete mode 100644 hy/core/mangles.py diff --git a/hy/core/__init__.py b/hy/core/__init__.py index 65be1af..78801e1 100644 --- a/hy/core/__init__.py +++ b/hy/core/__init__.py @@ -25,7 +25,6 @@ import hy.mangle MACROS = [ "hy.core.bootstrap", - "hy.core.mangles", ] diff --git a/hy/core/mangles.py b/hy/core/mangles.py deleted file mode 100644 index a9cc588..0000000 --- a/hy/core/mangles.py +++ /dev/null @@ -1,120 +0,0 @@ -# Copyright (c) 2013 Paul Tagliamonte -# -# Permission is hereby granted, free of charge, to any person obtaining a -# copy of this software and associated documentation files (the "Software"), -# to deal in the Software without restriction, including without limitation -# the rights to use, copy, modify, merge, publish, distribute, sublicense, -# and/or sell copies of the Software, and to permit persons to whom the -# Software is furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL -# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING -# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER -# DEALINGS IN THE SOFTWARE. - -from hy.models.expression import HyExpression -from hy.models.symbol import HySymbol -from hy.models.list import HyList - -import hy.mangle - - -class HoistableMangle(hy.mangle.Mangle): - """ - superclass for all the mangles down below -- this contains a bunch - of the core logic on when we should hoist things out. - """ - - def should_hoist(self): - """ - If the stack is: - - - unquoted - - not at the top-level of the "scope" (code branch) - - not ignorable (something that factors out during AST render) - - then we return True, otherwise, we return False. - """ - for frame in self.stack: - if (isinstance(frame, HyExpression) and - frame and frame[0] == "quote"): - return False - - for frame in self.stack: - if frame is self.scope: - return False - - if isinstance(frame, HyExpression) and frame != []: - call = frame[0] - if call in self.ignore: - continue - return True - return False - - -class FunctionMangle(HoistableMangle): - """ - This will hoist function defs out of an inner expression (such as invoking - an anon function "((fn [] ...))", or using it as an arg in a call) - """ - - ignore = ["def", "with_decorator", "setf", "setv", "foreach", "do"] - # ^^ these guys don't affect us, really. - - def __init__(self): - self.series = 0 - - def unique_name(self): - self.series += 1 - return "_hy_hoisted_fn_%s" % (self.series) - - def visit(self, tree): - """ - Visit all the nodes in the Hy code tree. - """ - if isinstance(tree, HyExpression) and tree != []: - call = tree[0] - if call == "fn" and self.should_hoist(): - # if we have a Function and we should hoist it -- - new_name = HySymbol(self.unique_name()) - new_name.replace(tree) - fn_def = HyExpression([HySymbol("def"), - new_name, - tree]) - fn_def.replace(tree) - self.hoist(fn_def) - return new_name - - -class IfMangle(HoistableMangle): - """ - This will mangle an `if' statement that's nested inside something (meaning - we need some sort of return statement from the (if)), we should - special-case the code to give us some juju. - """ - - ignore = ["foreach", "do"] - - def __init__(self): - self.series = 0 - - def visit(self, tree): - if isinstance(tree, HyExpression) and tree != []: - call = tree[0] - if call == "if" and self.should_hoist(): - # If we've got a hoistable if statement - fn = HyExpression([HyExpression([HySymbol("fn"), - HyList([]), - tree])]) - fn.replace(tree) - return fn - - -hy.mangle.MANGLES.append(IfMangle) -hy.mangle.MANGLES.append(FunctionMangle)