cpython/Lib/compiler/ast.py

697 lines
15 KiB
Python

import types
from consts import CO_VARARGS, CO_VARKEYWORDS
nodes = {}
def flatten(list):
l = []
for elt in list:
if type(elt) is types.TupleType:
for elt2 in flatten(elt):
l.append(elt2)
elif type(elt) is types.ListType:
for elt2 in flatten(elt):
l.append(elt2)
else:
l.append(elt)
return l
def asList(nodes):
l = []
for item in nodes:
if hasattr(item, "asList"):
l.append(item.asList())
else:
if type(item) is types.TupleType:
l.append(tuple(asList(item)))
elif type(item) is types.ListType:
l.append(asList(item))
else:
l.append(item)
return l
class Node:
def __init__(self, *args):
self._children = args
self.lineno = None
def __getitem__(self, index):
return self._children[index]
def __repr__(self):
return "<Node %s>" % self._children[0]
def __len__(self):
return len(self._children)
def __getslice__(self, low, high):
return self._children[low:high]
def getChildren(self):
return tuple(flatten(self._children[1:]))
def getType(self):
return self._children[0]
def asList(self):
return tuple(asList(self._children))
class EmptyNode(Node):
def __init__(self):
self.lineno = None
class Module(Node):
nodes['module'] = 'Module'
def __init__(self, doc, node):
self.doc = doc
self.node = node
self._children = ('module', doc, node)
def __repr__(self):
return "Module(%s,%s)" % self._children[1:]
class Stmt(Node):
nodes['stmt'] = 'Stmt'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('stmt', nodes)
def __repr__(self):
return "Stmt(%s)" % self._children[1:]
class Function(Node):
nodes['function'] = 'Function'
def __init__(self, name, argnames, defaults, flags, doc, code):
self.name = name
self.argnames = argnames
self.defaults = defaults
self.flags = flags
self.doc = doc
self.code = code
self._children = ('function',
name, argnames, defaults, flags, doc, code)
self.varargs = self.kwargs = None
if flags & CO_VARARGS:
self.varargs = 1
if flags & CO_VARKEYWORDS:
self.kwargs = 1
def __repr__(self):
return "Function(%s,%s,%s,%s,%s,%s)" % self._children[1:]
class Lambda(Node):
nodes['lambda'] = 'Lambda'
def __init__(self, argnames, defaults, flags, code):
self.argnames = argnames
self.defaults = defaults
self.flags = flags
self.code = code
self._children = ('lambda', argnames, defaults, flags, code)
def __repr__(self):
return "Lambda(%s,%s,%s,%s)" % self._children[1:]
class Classdef(Node):
nodes['classdef'] = 'Classdef'
def __init__(self, name, bases, doc, code):
self.name = name
self.bases = bases
self.doc = doc
self.code = code
self._children = ('classdef', name, bases, doc, code)
def __repr__(self):
return "Classdef(%s,%s,%s,%s)" % self._children[1:]
class Pass(EmptyNode):
nodes['pass'] = 'Pass'
_children = ('pass',)
def __repr__(self):
return "Pass()"
class Break(EmptyNode):
nodes['break'] = 'Break'
_children = ('break',)
def __repr__(self):
return "Break()"
class Continue(EmptyNode):
nodes['continue'] = 'Continue'
_children = ('continue',)
def __repr__(self):
return "Continue()"
class For(Node):
nodes['for'] = 'For'
def __init__(self, assign, list, body, else_):
self.assign = assign
self.list = list
self.body = body
self.else_ = else_
self._children = ('for', assign, list, body, else_)
def __repr__(self):
return "For(%s,%s,%s,%s)" % self._children[1:]
class While(Node):
nodes['while'] = 'While'
def __init__(self, test, body, else_):
self.test = test
self.body = body
self.else_ = else_
self._children = ('while', test, body, else_)
def __repr__(self):
return "While(%s,%s,%s)" % self._children[1:]
class If(Node):
"""if: [ (testNode, suiteNode), ...], elseNode"""
nodes['if'] = 'If'
def __init__(self, tests, else_):
self.tests = tests
self.else_ = else_
self._children = ('if', tests, else_)
def __repr__(self):
return "If(%s,%s)" % self._children[1:]
class Exec(Node):
nodes['exec'] = 'Exec'
def __init__(self, expr1, expr2, expr3):
self.expr1 = expr1
self.expr2 = expr2
self.expr3 = expr3
self._children = ('exec', expr1, expr2, expr3)
def __repr__(self):
return "Exec(%s,%s,%s)" % self._children[1:]
class From(Node):
nodes['from'] = 'From'
def __init__(self, modname, names):
self.modname = modname
self.names = names
self._children = ('from', modname, names)
def __repr__(self):
return "From(%s,%s)" % self._children[1:]
class Import(Node):
nodes['import'] = 'Import'
def __init__(self, names):
self.names = names
self._children = ('import', names)
def __repr__(self):
return "Import(%s)" % self._children[1:]
class Raise(Node):
nodes['raise'] = 'Raise'
def __init__(self, expr1, expr2, expr3):
self.expr1 = expr1
self.expr2 = expr2
self.expr3 = expr3
self._children = ('raise', expr1, expr2, expr3)
def __repr__(self):
return "Raise(%s,%s,%s)" % self._children[1:]
class Tryfinally(Node):
nodes['tryfinally'] = 'Tryfinally'
def __init__(self, try_, fin):
self.try_ = try_
self.fin = fin
self._children = ('tryfinally', try_, fin)
def __repr__(self):
return "Tryfinally(%s,%s)" % self._children[1:]
class Tryexcept(Node):
nodes['tryexcept'] = 'Tryexcept'
def __init__(self, try_, excs, else_):
self.try_ = try_
self.excs = excs
self.else_ = else_
self._children = ('tryexcept', try_, excs, else_)
def __repr__(self):
return "Tryexcept(%s,%s,%s)" % self._children[1:]
class Return(Node):
nodes['return'] = 'Return'
def __init__(self, value):
self.value = value
self._children = ('return', value)
def __repr__(self):
return "Return(%s)" % self._children[1:]
class Const(Node):
nodes['const'] = 'Const'
def __init__(self, value):
self.value = value
self._children = ('const', value)
def __repr__(self):
return "Const(%s)" % self._children[1:]
class Print(Node):
nodes['print'] = 'Print'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('print', nodes)
def __repr__(self):
return "Print(%s)" % self._children[1:]
class Printnl(Node):
nodes['printnl'] = 'Printnl'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('printnl', nodes)
def __repr__(self):
return "Printnl(%s)" % self._children[1:]
class Discard(Node):
nodes['discard'] = 'Discard'
def __init__(self, expr):
self.expr = expr
self._children = ('discard', expr)
def __repr__(self):
return "Discard(%s)" % self._children[1:]
class Assign(Node):
nodes['assign'] = 'Assign'
def __init__(self, nodes, expr):
self.nodes = nodes
self.expr = expr
self._children = ('assign', nodes, expr)
def __repr__(self):
return "Assign(%s,%s)" % self._children[1:]
class AssTuple(Node):
nodes['ass_tuple'] = 'AssTuple'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('ass_tuple', nodes)
def __repr__(self):
return "AssTuple(%s)" % self._children[1:]
class AssList(Node):
nodes['ass_list'] = 'AssList'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('ass_list', nodes)
def __repr__(self):
return "AssList(%s)" % self._children[1:]
class AssName(Node):
nodes['ass_name'] = 'AssName'
def __init__(self, name, flags):
self.name = name
self.flags = flags
self._children = ('ass_name', name, flags)
def __repr__(self):
return "AssName(%s,%s)" % self._children[1:]
class AssAttr(Node):
nodes['ass_attr'] = 'AssAttr'
def __init__(self, expr, attrname, flags):
self.expr = expr
self.attrname = attrname
self.flags = flags
self._children = ('ass_attr', expr, attrname, flags)
def __repr__(self):
return "AssAttr(%s,%s,%s)" % self._children[1:]
class List(Node):
nodes['list'] = 'List'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('list', nodes)
def __repr__(self):
return "List(%s)" % self._children[1:]
class Dict(Node):
nodes['dict'] = 'Dict'
def __init__(self, keys):
self.keys = keys
self._children = ('dict', keys)
def __repr__(self):
return "Dict(%s)" % self._children[1:]
class Not(Node):
nodes['not'] = 'Not'
def __init__(self, expr):
self.expr = expr
self._children = ('not', expr)
def __repr__(self):
return "Not(%s)" % self._children[1:]
class Compare(Node):
nodes['compare'] = 'Compare'
def __init__(self, expr, ops):
self.expr = expr
self.ops = ops
self._children = ('compare', expr, ops)
def __repr__(self):
return "Compare(%s,%s)" % self._children[1:]
class Name(Node):
nodes['name'] = 'Name'
def __init__(self, name):
self.name = name
self._children = ('name', name)
def __repr__(self):
return "Name(%s)" % self._children[1:]
class Global(Node):
nodes['global'] = 'Global'
def __init__(self, names):
self.names = names
self._children = ('global', names)
def __repr__(self):
return "Global(%s)" % self._children[1:]
class Backquote(Node):
nodes['backquote'] = 'Backquote'
def __init__(self, node):
self.expr = node
self._children = ('backquote', node)
def __repr__(self):
return "Backquote(%s)" % self._children[1:]
class Getattr(Node):
nodes['getattr'] = 'Getattr'
def __init__(self, expr, attrname):
self.expr = expr
self.attrname = attrname
self._children = ('getattr', expr, attrname)
def __repr__(self):
return "Getattr(%s,%s)" % self._children[1:]
class CallFunc(Node):
nodes['call_func'] = 'CallFunc'
def __init__(self, node, args):
self.node = node
self.args = args
self._children = ('call_func', node, args)
def __repr__(self):
return "CallFunc(%s,%s)" % self._children[1:]
class Keyword(Node):
nodes['keyword'] = 'Keyword'
def __init__(self, name, expr):
self.name = name
self.expr = expr
self._children = ('keyword', name, expr)
def __repr__(self):
return "Keyword(%s,%s)" % self._children[1:]
class Subscript(Node):
nodes['subscript'] = 'Subscript'
def __init__(self, expr, flags, subs):
self.expr = expr
self.flags = flags
self.subs = subs
self._children = ('subscript', expr, flags, subs)
def __repr__(self):
return "Subscript(%s,%s,%s)" % self._children[1:]
class Ellipsis(EmptyNode):
nodes['ellipsis'] = 'Ellipsis'
_children = ('ellipsis',)
def __repr__(self):
return "Ellipsis()"
class Sliceobj(Node):
nodes['sliceobj'] = 'Sliceobj'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('sliceobj', nodes)
def __repr__(self):
return "Sliceobj(%s)" % self._children[1:]
class Slice(Node):
nodes['slice'] = 'Slice'
def __init__(self, expr, flags, lower, upper):
self.expr = expr
self.flags = flags
self.lower = lower
self.upper = upper
self._children = ('slice', expr, flags, lower, upper)
def __repr__(self):
return "Slice(%s,%s,%s,%s)" % self._children[1:]
class Assert(Node):
nodes['assert'] = 'Assert'
def __init__(self, expr1, expr2):
self.expr1 = expr1
self.expr2 = expr2
self._children = ('assert', expr1, expr2)
def __repr__(self):
return "Assert(%s,%s)" % self._children[1:]
class Tuple(Node):
nodes['tuple'] = 'Tuple'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('tuple', nodes)
def __repr__(self):
return "Tuple(%s)" % self._children[1:]
class Or(Node):
nodes['or'] = 'Or'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('or', nodes)
def __repr__(self):
return "Or(%s)" % self._children[1:]
class And(Node):
nodes['and'] = 'And'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('and', nodes)
def __repr__(self):
return "And(%s)" % self._children[1:]
class Bitor(Node):
nodes['bitor'] = 'Bitor'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('bitor', nodes)
def __repr__(self):
return "Bitor(%s)" % self._children[1:]
class Bitxor(Node):
nodes['bitxor'] = 'Bitxor'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('bitxor', nodes)
def __repr__(self):
return "Bitxor(%s)" % self._children[1:]
class Bitand(Node):
nodes['bitand'] = 'Bitand'
def __init__(self, nodes):
self.nodes = nodes
self._children = ('bitand', nodes)
def __repr__(self):
return "Bitand(%s)" % self._children[1:]
class LeftShift(Node):
nodes['<<'] = 'LeftShift'
def __init__(self, (expr, shift)):
self.expr = expr
self.shift = shift
self._children = ('<<', (expr, shift))
def __repr__(self):
return "LeftShift(%s,%s)" % self._children[1:]
class RightShift(Node):
nodes['>>'] = 'RightShift'
def __init__(self, (expr, shift)):
self.expr = expr
self.shift = shift
self._children = ('>>', (expr, shift))
def __repr__(self):
return "RightShift(%s,%s)" % self._children[1:]
class Add(Node):
nodes['+'] = 'Add'
def __init__(self, (left, right)):
self.left = left
self.right = right
self._children = ('+', (left, right))
def __repr__(self):
return "Add(%s)" % self._children[1:]
class Sub(Node):
nodes['-'] = 'Sub'
def __init__(self, (left, right)):
self.left = left
self.right = right
self._children = ('-', (left, right))
def __repr__(self):
return "Sub(%s)" % self._children[1:]
class Mul(Node):
nodes['*'] = 'Mul'
def __init__(self, (left, right)):
self.left = left
self.right = right
self._children = ('*', (left, right))
def __repr__(self):
return "Mul(%s)" % self._children[1:]
class Div(Node):
nodes['/'] = 'Div'
def __init__(self, (left, right)):
self.left = left
self.right = right
self._children = ('/', (left, right))
def __repr__(self):
return "Div(%s)" % self._children[1:]
class Mod(Node):
nodes['%'] = 'Mod'
def __init__(self, (left, right)):
self.left = left
self.right = right
self._children = ('%', (left, right))
def __repr__(self):
return "Mod(%s)" % self._children[1:]
class Power(Node):
nodes['power'] = 'Power'
def __init__(self, (left, right)):
self.left = left
self.right = right
self._children = ('power', (left, right))
def __repr__(self):
return "Power(%s)" % self._children[1:]
class UnaryAdd(Node):
nodes['unary+'] = 'UnaryAdd'
def __init__(self, node):
self.expr = node
self._children = ('unary+', node)
def __repr__(self):
return "UnaryAdd(%s)" % self._children[1:]
class UnarySub(Node):
nodes['unary-'] = 'UnarySub'
def __init__(self, node):
self.expr = node
self._children = ('unary-', node)
def __repr__(self):
return "UnarySub(%s)" % self._children[1:]
class Invert(Node):
nodes['invert'] = 'Invert'
def __init__(self, node):
self.expr = node
self._children = ('invert', node)
def __repr__(self):
return "Invert(%s)" % self._children[1:]
# now clean up the nodes dictionary
klasses = globals()
for k in nodes.keys():
nodes[k] = klasses[nodes[k]]
# Local Variables:
# mode:python
# indent-tabs-mode: nil
# py-indent-offset: 2
# py-smart-indentation: nil
# End: