Last set of change to get regression tests to pass

Remove the only test in the syntax module.  It ends up that the
transformer must handle this error case.

In the transformer, check for a list compression in com_assign_list()
by looking for a list_for node where a comma is expected.

In pycodegen.compile() re-raise the SyntaxError rather than catching
it and exiting

3 files changed, 10 insertions, 5 deletions

diff --git a/Tools/compiler/compiler/pycodegen.py b/Tools/compiler/compiler/pycodegen.py
index 04c115a7c34..7bc17958cf5 100644
--- a/Tools/compiler/compiler/pycodegen.py
+++ b/Tools/compiler/compiler/pycodegen.py
@@ -49,7 +49,7 @@ def compile(filename, display=0):
     try:
         mod.compile(display)
     except SyntaxError, err:
-        print "SyntaxError:", err
+        raise
     else:
         f = open(filename + "c", "wb")
         mod.dump(f)
diff --git a/Tools/compiler/compiler/syntax.py b/Tools/compiler/compiler/syntax.py
index 14613ef7876..88c1453a1fa 100644
--- a/Tools/compiler/compiler/syntax.py
+++ b/Tools/compiler/compiler/syntax.py
@@ -39,7 +39,8 @@ class SyntaxErrorChecker:
     def visitAssign(self, node):
         # the transformer module handles many of these
         for target in node.nodes:
-            if isinstance(target, ast.AssList):
-                if target.lineno is None:
-                    target.lineno = node.lineno
-                self.error(target, "can't assign to list comprehension")
+            pass
+##            if isinstance(target, ast.AssList):
+##                if target.lineno is None:
+##                    target.lineno = node.lineno
+##                self.error(target, "can't assign to list comprehension")
diff --git a/Tools/compiler/compiler/transformer.py b/Tools/compiler/compiler/transformer.py
index 6e82b10c784..3607af11cb5 100644
--- a/Tools/compiler/compiler/transformer.py
+++ b/Tools/compiler/compiler/transformer.py
@@ -943,6 +943,10 @@ class Transformer:
     def com_assign_list(self, node, assigning):
         assigns = []
         for i in range(1, len(node), 2):
+            if i + 1 < len(node):
+                if node[i + 1][0] == symbol.list_for:
+                    raise SyntaxError, "can't assign to list comprehension"
+                assert node[i + 1][0] == token.COMMA, node[i + 1]
             assigns.append(self.com_assign(node[i], assigning))
         return AssList(assigns)