64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
from Cython.TestUtils import CythonTest
|
|
from Cython.Compiler.TreeFragment import *
|
|
from Cython.Compiler.Nodes import *
|
|
from Cython.Compiler.UtilNodes import *
|
|
|
|
class TestTreeFragments(CythonTest):
|
|
|
|
def test_basic(self):
|
|
F = self.fragment(u"x = 4")
|
|
T = F.copy()
|
|
self.assertCode(u"x = 4", T)
|
|
|
|
def test_copy_is_taken(self):
|
|
F = self.fragment(u"if True: x = 4")
|
|
T1 = F.root
|
|
T2 = F.copy()
|
|
self.assertEqual("x", T2.stats[0].if_clauses[0].body.lhs.name)
|
|
T2.stats[0].if_clauses[0].body.lhs.name = "other"
|
|
self.assertEqual("x", T1.stats[0].if_clauses[0].body.lhs.name)
|
|
|
|
def test_substitutions_are_copied(self):
|
|
T = self.fragment(u"y + y").substitute({"y": NameNode(pos=None, name="x")})
|
|
self.assertEqual("x", T.stats[0].expr.operand1.name)
|
|
self.assertEqual("x", T.stats[0].expr.operand2.name)
|
|
self.assertTrue(T.stats[0].expr.operand1 is not T.stats[0].expr.operand2)
|
|
|
|
def test_substitution(self):
|
|
F = self.fragment(u"x = 4")
|
|
y = NameNode(pos=None, name=u"y")
|
|
T = F.substitute({"x" : y})
|
|
self.assertCode(u"y = 4", T)
|
|
|
|
def test_exprstat(self):
|
|
F = self.fragment(u"PASS")
|
|
pass_stat = PassStatNode(pos=None)
|
|
T = F.substitute({"PASS" : pass_stat})
|
|
self.assertTrue(isinstance(T.stats[0], PassStatNode), T)
|
|
|
|
def test_pos_is_transferred(self):
|
|
F = self.fragment(u"""
|
|
x = y
|
|
x = u * v ** w
|
|
""")
|
|
T = F.substitute({"v" : NameNode(pos=None, name="a")})
|
|
v = F.root.stats[1].rhs.operand2.operand1
|
|
a = T.stats[1].rhs.operand2.operand1
|
|
self.assertEqual(v.pos, a.pos)
|
|
|
|
def test_temps(self):
|
|
TemplateTransform.temp_name_counter = 0
|
|
F = self.fragment(u"""
|
|
TMP
|
|
x = TMP
|
|
""")
|
|
T = F.substitute(temps=[u"TMP"])
|
|
s = T.body.stats
|
|
self.assertTrue(isinstance(s[0].expr, TempRefNode))
|
|
self.assertTrue(isinstance(s[1].rhs, TempRefNode))
|
|
self.assertTrue(s[0].expr.handle is s[1].rhs.handle)
|
|
|
|
if __name__ == "__main__":
|
|
import unittest
|
|
unittest.main()
|