def test_locate_identifiers_6(self):
code = """
def foo():
return bar()
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['bar']))
code = """
def lala(x, y):
return x, y, z
print(x)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['z', 'x']))
eq_(parsed.declared_identifiers, set(['lala']))
code = """
def lala(x, y):
def hoho():
def bar():
z = 7
print(z)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['z']))
eq_(parsed.declared_identifiers, set(['lala']))
def test_locate_identifiers(self):
"""test the location of identifiers in a python code string"""
code = """
a = 10
b = 5
c = x * 5 + a + b + q
(g,h,i) = (1,2,3)
[u,k,j] = [4,5,6]
foo.hoho.lala.bar = 7 + gah.blah + u + blah
for lar in (1,2,3):
gh = 5
x = 12
("hello world, ", a, b)
("Another expr", c)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(
parsed.declared_identifiers,
set([
'a', 'b', 'c', 'g', 'h', 'i', 'u', 'k', 'j', 'gh', 'lar', 'x'
]))
eq_(parsed.undeclared_identifiers,
set(['x', 'q', 'foo', 'gah', 'blah']))
parsed = ast.PythonCode("x + 5 * (y-z)", **exception_kwargs)
assert parsed.undeclared_identifiers == set(['x', 'y', 'z'])
assert parsed.declared_identifiers == set()
def test_locate_identifiers_9(self):
code = """
",".join([t for t in ("a", "b", "c")])
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['t']))
eq_(parsed.undeclared_identifiers, set(['t']))
code = """
[(val, name) for val, name in x]
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['val', 'name']))
eq_(parsed.undeclared_identifiers, set(['val', 'name', 'x']))
def test_locate_identifiers_7(self):
code = """
import foo.bar
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['foo']))
eq_(parsed.undeclared_identifiers, set())
def __init__(self, keyword, attributes, **kwargs):
super(CallTag, self).__init__(keyword, attributes, ('args'),
('expr', ), ('expr', ), **kwargs)
self.expression = attributes['expr']
self.code = ast.PythonCode(self.expression, **self.exception_kwargs)
self.body_decl = ast.FunctionArgs(attributes.get('args', ''),
**self.exception_kwargs)
def __init__(self, keyword, attributes, **kwargs):
super(IncludeTag,
self).__init__(keyword, attributes, ('file', 'import', 'args'),
(), ('file', ), **kwargs)
self.page_args = ast.PythonCode(
"__DUMMY(%s)" % attributes.get('args', ''),
**self.exception_kwargs)
def test_locate_identifiers_10(self):
code = """
lambda q: q + 5
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set())
eq_(parsed.undeclared_identifiers, set())
def test_locate_identifiers_11(self):
code = """
def x(q):
return q + 5
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['x']))
eq_(parsed.undeclared_identifiers, set())
def test_locate_identifiers_5(self):
code = """
try:
print(x)
except:
print(y)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['x', 'y']))
def test_locate_identifiers_8(self):
code = """
class Hi(object):
foo = 7
def hoho(self):
x = 5
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['Hi']))
eq_(parsed.undeclared_identifiers, set())
def test_locate_identifiers_15(self):
code = """
def t1((x,y)):
return x+5, y+4
t2 = lambda (x,y):(x+5, y+4)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['t1', 't2']))
eq_(parsed.undeclared_identifiers, set())
def test_locate_identifiers_4(self):
code = """
x = 5
(y, )
def mydef(mydefarg):
print("mda is", mydefarg)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['y']))
eq_(parsed.declared_identifiers, set(['mydef', 'x']))
def test_locate_identifiers_12(self):
code = """
def foo():
s = 1
def bar():
t = s
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['foo']))
eq_(parsed.undeclared_identifiers, set())
def test_locate_identifiers_13(self):
code = """
def foo():
class Bat(object):
pass
Bat
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.declared_identifiers, set(['foo']))
eq_(parsed.undeclared_identifiers, set())
def undeclared_identifiers(self):
res = []
for c in self.function_decl.defaults:
res += list(
ast.PythonCode(c,
**self.exception_kwargs).undeclared_identifiers)
return set(res).union(
self.filter_args.undeclared_identifiers.difference(
list(filters.DEFAULT_ESCAPES.keys()))).union(
self.expression_undeclared_identifiers).difference(
self.function_decl.allargnames)
def test_locate_identifiers_3(self):
"""test that combination assignment/expressions
of the same identifier log the ident as 'undeclared'"""
code = """
x = x + 5
for y in range(1, y):
("hi",)
[z for z in range(1, z)]
(q for q in range (1, q))
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['x', 'y', 'z', 'q', 'range']))
def __init__(self, namespace, defname, attributes, **kwargs):
super(CallNamespaceTag,
self).__init__(namespace + ":" + defname, attributes,
tuple(attributes.keys()) + ('args', ), (), (),
**kwargs)
self.expression = "%s.%s(%s)" % (namespace, defname, ",".join([
"%s=%s" % (k, v)
for k, v in list(self.parsed_attributes.items()) if k != 'args'
]))
self.code = ast.PythonCode(self.expression, **self.exception_kwargs)
self.body_decl = ast.FunctionArgs(attributes.get('args', ''),
**self.exception_kwargs)
def test_locate_identifiers_2(self):
code = """
import foobar
from lala import hoho, yaya
import bleep as foo
result = []
data = get_data()
for x in data:
result.append(x+7)
"""
parsed = ast.PythonCode(code, **exception_kwargs)
eq_(parsed.undeclared_identifiers, set(['get_data']))
eq_(parsed.declared_identifiers,
set(['result', 'data', 'x', 'hoho', 'foobar', 'foo', 'yaya']))
def _parse_attributes(self, expressions, nonexpressions):
undeclared_identifiers = set()
self.parsed_attributes = {}
for key in self.attributes:
if key in expressions:
expr = []
for x in re.compile(r'(\${.+?})',
re.S).split(self.attributes[key]):
m = re.compile(r'^\${(.+?)}$', re.S).match(x)
if m:
code = ast.PythonCode(
m.group(1).rstrip(), **self.exception_kwargs)
# we aren't discarding "declared_identifiers" here,
# which we do so that list comprehension-declared
# variables aren't counted. As yet can't find a
# condition that requires it here.
undeclared_identifiers = \
undeclared_identifiers.union(
code.undeclared_identifiers)
expr.append('(%s)' % m.group(1))
else:
if x:
expr.append(repr(x))
self.parsed_attributes[key] = " + ".join(expr) or repr('')
elif key in nonexpressions:
if re.search(r'\${.+?}', self.attributes[key]):
raise errors.CompileException(
"Attibute '%s' in tag '%s' does not allow embedded "
"expressions" % (key, self.keyword),
**self.exception_kwargs)
self.parsed_attributes[key] = repr(self.attributes[key])
else:
raise errors.CompileException(
"Invalid attribute for tag '%s': '%s'" %
(self.keyword, key), **self.exception_kwargs)
self.expression_undeclared_identifiers = undeclared_identifiers
def __init__(self, text, ui_name, ui_args, **kwargs):
super(Expression, self).__init__(**kwargs)
self.text = text
self.code = ast.PythonCode(text, **self.exception_kwargs)
self.ui_name = ui_name
self.ui_args = ui_args
def __init__(self, text, escapes, **kwargs):
super(Expression, self).__init__(**kwargs)
self.text = text
self.escapes = escapes
self.escapes_code = ast.ArgumentList(escapes, **self.exception_kwargs)
self.code = ast.PythonCode(text, **self.exception_kwargs)
def write_toplevel(self):
"""Traverse a template structure for module-level directives and
generate the start of module-level code.
"""
inherit = []
namespaces = {}
module_code = []
self.compiler.pagetag = None
class FindTopLevel(object):
def visitInheritTag(s, node):
inherit.append(node)
def visitNamespaceTag(s, node):
namespaces[node.name] = node
def visitPageTag(s, node):
self.compiler.pagetag = node
def visitCode(s, node):
if node.ismodule:
module_code.append(node)
f = FindTopLevel()
for n in self.node.nodes:
n.accept_visitor(f)
self.compiler.namespaces = namespaces
module_ident = set()
for n in module_code:
module_ident = module_ident.union(n.declared_identifiers())
module_identifiers = _Identifiers(self.compiler)
module_identifiers.declared = module_ident
# module-level names, python code
if self.compiler.generate_magic_comment and \
self.compiler.source_encoding:
self.printer.writeline("# -*- coding:%s -*-" %
self.compiler.source_encoding)
if self.compiler.future_imports:
self.printer.writeline("from __future__ import %s" %
(", ".join(self.compiler.future_imports), ))
self.printer.writeline("from choco import runtime, filters, cache")
self.printer.writeline("UNDEFINED = runtime.UNDEFINED")
self.printer.writeline("STOP_RENDERING = runtime.STOP_RENDERING")
self.printer.writeline("__M_dict_builtin = dict")
self.printer.writeline("__M_locals_builtin = locals")
self.printer.writeline("_magic_number = %r" % MAGIC_NUMBER)
self.printer.writeline("_modified_time = %r" % time.time())
self.printer.writeline("_enable_loop = %r" % self.compiler.enable_loop)
self.printer.writeline("_template_filename = %r" %
self.compiler.filename)
self.printer.writeline("_template_uri = %r" % self.compiler.uri)
self.printer.writeline("_source_encoding = %r" %
self.compiler.source_encoding)
if self.compiler.imports:
buf = ''
for imp in self.compiler.imports:
buf += imp + "\n"
self.printer.writeline(imp)
impcode = ast.PythonCode(buf,
source='',
lineno=0,
pos=0,
filename='template defined imports')
else:
impcode = None
main_identifiers = module_identifiers.branch(self.node)
module_identifiers.topleveldefs = \
module_identifiers.topleveldefs.\
union(main_identifiers.topleveldefs)
module_identifiers.declared.update(TOPLEVEL_DECLARED)
if impcode:
module_identifiers.declared.update(impcode.declared_identifiers)
self.compiler.identifiers = module_identifiers
self.printer.writeline(
"_exports = %r" %
[n.name for n in main_identifiers.topleveldefs.values()])
self.printer.write_blanks(2)
if len(module_code):
self.write_module_code(module_code)
if len(inherit):
self.write_namespaces(namespaces)
self.write_inherit(inherit[-1])
elif len(namespaces):
self.write_namespaces(namespaces)
return list(main_identifiers.topleveldefs.values())
def __init__(self, text, ismodule, **kwargs):
super(Code, self).__init__(**kwargs)
self.text = text
self.ismodule = ismodule
self.code = ast.PythonCode(text, **self.exception_kwargs)
