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Add support for absolute/relative imports and if/else expressions:

Browse source 
- regenerate ast.py
 - add future flags for absolute-import and with-statement so they
   (hopefully) properly get set in code-object flags
 - try out if/else expressions in actual code for the hell of it.

Seems to generate the same kind of bytecode as the normal compiler.
This commit is contained in:
Thomas Wouters 2006-03-03 18:16:20 +00:00
parent 7e2ac2533e
commit fa0cf4f3ae
5 changed files with 82 additions and 19 deletions
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29
Lib/compiler/ast.py
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@ -524,19 +524,20 @@ class For(Node):
return "For(%s, %s, %s, %s)" % (repr(self.assign), repr(self.list), repr(self.body), repr(self.else_))
class From(Node):
def __init__(self, modname, names, lineno=None):
def __init__(self, modname, names, level, lineno=None):
self.modname = modname
self.names = names
self.level = level
self.lineno = lineno
def getChildren(self):
return self.modname, self.names
return self.modname, self.names, self.level
def getChildNodes(self):
return ()
def __repr__(self):
return "From(%s, %s)" % (repr(self.modname), repr(self.names))
return "From(%s, %s, %s)" % (repr(self.modname), repr(self.names), repr(self.level))
class Function(Node):
def __init__(self, decorators, name, argnames, defaults, flags, doc, code, lineno=None):
@ -553,7 +554,7 @@ class Function(Node):
self.varargs = 1
if flags & CO_VARKEYWORDS:
self.kwargs = 1
def getChildren(self):
@ -584,7 +585,7 @@ class GenExpr(Node):
self.lineno = lineno
self.argnames = ['[outmost-iterable]']
self.varargs = self.kwargs = None
def getChildren(self):
@ -708,6 +709,22 @@ class If(Node):
def __repr__(self):
return "If(%s, %s)" % (repr(self.tests), repr(self.else_))
class IfExp(Node):
def __init__(self, test, then, else_, lineno=None):
self.test = test
self.then = then
self.else_ = else_
self.lineno = lineno
def getChildren(self):
return self.test, self.then, self.else_
def getChildNodes(self):
return self.test, self.then, self.else_
def __repr__(self):
return "IfExp(%s, %s, %s)" % (repr(self.test), repr(self.then), repr(self.else_))
class Import(Node):
def __init__(self, names, lineno=None):
self.names = names
@ -763,7 +780,7 @@ class Lambda(Node):
self.varargs = 1
if flags & CO_VARKEYWORDS:
self.kwargs = 1
def getChildren(self):