mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 08:59:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

Add support for // and //=.

Browse source 
Avoid if/elif/elif/else tests where the final else is supposed to
handle exactly one case instead of all other cases.  When the list of
operators is extended, the catchall else treats all new operators as
the last operator in the set of tests.  Instead, raise an exception if
an unexpected operator occurs.
This commit is contained in:
Jeremy Hylton 2001-08-29 18:12:30 +00:00
parent d4be10dc2c
commit 7abf520d6c
2 changed files with 32 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

21
Lib/compiler/transformer.py
View file

@ -588,9 +588,11 @@ class Transformer:
if nodelist[i-1][0] == token.LEFTSHIFT:
node = LeftShift([node, right])
node.lineno = nodelist[1][2]
else:
elif nodelist[i-1][0] == token.RIGHTSHIFT:
node = RightShift([node, right])
node.lineno = nodelist[1][2]
else:
raise ValueError, "unexpected token: %s" % nodelist[i-1][0]
return node
def arith_expr(self, nodelist):
@ -600,9 +602,11 @@ class Transformer:
if nodelist[i-1][0] == token.PLUS:
node = Add([node, right])
node.lineno = nodelist[1][2]
else:
elif nodelist[i-1][0] == token.MINUS:
node = Sub([node, right])
node.lineno = nodelist[1][2]
else:
raise ValueError, "unexpected token: %s" % nodelist[i-1][0]
return node
def term(self, nodelist):
@ -614,8 +618,12 @@ class Transformer:
node = Mul([node, right])
elif t == token.SLASH:
node = Div([node, right])
else:
elif t == token.PERCENT:
node = Mod([node, right])
elif t == token.DOUBLESLASH:
node = FloorDiv([node, right])
else:
raise ValueError, "unexpected token: %s" % t
node.lineno = nodelist[1][2]
return node
@ -750,10 +758,13 @@ class Transformer:
if i < len(nodelist):
# should be DOUBLESTAR or STAR STAR
if nodelist[i][0] == token.DOUBLESTAR:
t = nodelist[i][0]
if t == token.DOUBLESTAR:
node = nodelist[i+1]
else:
elif t == token.STARSTAR:
node = nodelist[i+2]
else:
raise ValueError, "unexpected token: %s" % t
names.append(node[1])
flags = flags | CO_VARKEYWORDS