X-Git-Url: https://svn.cri.ensmp.fr/git/linpy.git/blobdiff_plain/50f0fde4dca3f10e535314b1c9d325cd9283735b..c9bd08381cbc109ae9602cc780fc7e8899651ae3:/linpy/domains.py

diff --git a/linpy/domains.py b/linpy/domains.py
index 70e5e4f..238248b 100644
--- a/linpy/domains.py
+++ b/linpy/domains.py
@@ -31,7 +31,7 @@ from fractions import Fraction
 
 from . import islhelper
 from .islhelper import mainctx, libisl
-from .linexprs import Expression, Symbol, Rational
+from .linexprs import LinExpr, Symbol, Rational
 from .geometry import GeometricObject, Point, Vector
 
 
@@ -616,10 +616,10 @@ class Domain(GeometricObject):
         elif isinstance(node, ast.Compare):
             equalities = []
             inequalities = []
-            left = Expression._fromast(node.left)
+            left = LinExpr._fromast(node.left)
             for i in range(len(node.ops)):
                 op = node.ops[i]
-                right = Expression._fromast(node.comparators[i])
+                right = LinExpr._fromast(node.comparators[i])
                 if isinstance(op, ast.Lt):
                     inequalities.append(right - left - 1)
                 elif isinstance(op, ast.LtE):
@@ -642,7 +642,7 @@ class Domain(GeometricObject):
     _RE_AND = re.compile(r'\band\b|,|&&|/\\|∧|∩')
     _RE_OR = re.compile(r'\bor\b|;|\|\||\\/|∨|∪')
     _RE_NOT = re.compile(r'\bnot\b|!|¬')
-    _RE_NUM_VAR = Expression._RE_NUM_VAR
+    _RE_NUM_VAR = LinExpr._RE_NUM_VAR
     _RE_OPERATORS = re.compile(r'(&|\||~)')
 
     @classmethod
@@ -701,7 +701,7 @@ class Domain(GeometricObject):
             args = [Domain.fromsympy(arg) for arg in expr.args]
             return funcmap[expr.func](*args)
         elif isinstance(expr, sympy.Expr):
-            return Expression.fromsympy(expr)
+            return LinExpr.fromsympy(expr)
         raise ValueError('non-domain expression: {!r}'.format(expr))
 
     def tosympy(self):