Python token.NAME属性代码示例

# 需要导入模块: from lib2to3.fixer_util import token [as 别名]
# 或者: from lib2to3.fixer_util.token import NAME [as 别名]
def gen_params(raw_params):
    u"""
    Generator that yields tuples of (name, default_value) for each parameter in the list
    If no default is given, then it is default_value is None (not Leaf(token.NAME, 'None'))
    """
    assert raw_params[0].type == token.STAR and len(raw_params) > 2
    curr_idx = 2 # the first place a keyword-only parameter name can be is index 2
    max_idx = len(raw_params)
    while curr_idx < max_idx:
        curr_item = raw_params[curr_idx]
        prev_item = curr_item.prev_sibling
        if curr_item.type != token.NAME:
            curr_idx += 1
            continue
        if prev_item is not None and prev_item.type == token.DOUBLESTAR:
            break
        name = curr_item.value
        nxt = curr_item.next_sibling
        if nxt is not None and nxt.type == token.EQUAL:
            default_value = nxt.next_sibling
            curr_idx += 2
        else:
            default_value = None
        yield (name, default_value)
        curr_idx += 1 

# 需要导入模块: from lib2to3.fixer_util import token [as 别名]
# 或者: from lib2to3.fixer_util.token import NAME [as 别名]
def needs_fixing(raw_params, kwargs_default=_kwargs_default_name):
    u"""
    Returns string with the name of the kwargs dict if the params after the first star need fixing
    Otherwise returns empty string
    """
    found_kwargs = False
    needs_fix = False

    for t in raw_params[2:]:
        if t.type == token.COMMA:
            # Commas are irrelevant at this stage.
            continue
        elif t.type == token.NAME and not found_kwargs:
            # Keyword-only argument: definitely need to fix.
            needs_fix = True
        elif t.type == token.NAME and found_kwargs:
            # Return 'foobar' of **foobar, if needed.
            return t.value if needs_fix else u''
        elif t.type == token.DOUBLESTAR:
            # Found either '*' from **foobar.
            found_kwargs = True
    else:
        # Never found **foobar.  Return a synthetic name, if needed.
        return kwargs_default if needs_fix else u'' 

# 需要导入模块: from lib2to3.fixer_util import token [as 别名]
# 或者: from lib2to3.fixer_util.token import NAME [as 别名]
def transform(self, node, results):
        FIXME
        name, val, trc = (results.get(u"name"), results.get(u"val"), results.get(u"trc"))
        chain = results.get(u"chain")
        if chain is not None:
            self.warning(node, u"explicit exception chaining is not supported in Python 2")
            chain.prev_sibling.remove()
            chain.remove()
        if trc is not None:
            val = val[0] if val else Leaf(token.NAME, u"None")
            val.prefix = trc.prefix = u" "
            kids = [Leaf(token.NAME, u"raise"), name.clone(), Comma(),
                    val.clone(), Comma(), trc.clone()]
            raise_stmt = Node(syms.raise_stmt, kids)
            node.replace(raise_stmt) 

# 需要导入模块: from lib2to3.fixer_util import token [as 别名]
# 或者: from lib2to3.fixer_util.token import NAME [as 别名]
def transform(self, node, results):
        name, val, trc = (results.get(u"name"), results.get(u"val"), results.get(u"trc"))
        chain = results.get(u"chain")
        if chain is not None:
            self.warning(node, u"explicit exception chaining is not supported in Python 2")
            chain.prev_sibling.remove()
            chain.remove()
        if trc is not None:
            val = val[0] if val else Leaf(token.NAME, u"None")
            val.prefix = trc.prefix = u" "
            kids = [Leaf(token.NAME, u"raise"), name.clone(), Comma(),
                    val.clone(), Comma(), trc.clone()]
            raise_stmt = Node(syms.raise_stmt, kids)
            node.replace(raise_stmt)