- [bug] Can now use strict_undefined at the

  same time args passed to def() are used
  by other elements of the <%def> tag.
  [ticket:191]

CHANGES

@@ -4,6 +4,11 @@
   when no statements are otherwise present.
   Courtesy Ben Trofatter [ticket:146]
 
+- [bug] Can now use strict_undefined at the
+  same time args passed to def() are used
+  by other elements of the <%def> tag.
+  [ticket:191]
+
 0.7.0
 - [feature] Added new "loop" variable to templates,
   is provided within a % for block to provide

mako/parsetree.py

@@ -445,6 +445,8 @@ class DefTag(Tag):
                             difference(filters.DEFAULT_ESCAPES.keys())
         ).union(
             self.expression_undeclared_identifiers
+        ).difference(
+            self.function_decl.argnames
         )
 
 class BlockTag(Tag):

test/__init__.py

@@ -3,7 +3,7 @@ import unittest, os
 from mako.util import py3k
 from mako.util import function_named
 import re
-
+from mako.cache import CacheImpl, register_plugin
 from nose import SkipTest
 
 
@@ -11,34 +11,34 @@ template_base = os.path.join(os.path.dirname(__file__), 'templates')
 module_base = os.path.join(template_base, 'modules')
 
 class TemplateTest(unittest.TestCase):
- 
+
     def _file_template(self, filename, **kw):
         filepath = self._file_path(filename)
         return Template(uri=filename, filename=filepath,
                             module_directory=module_base, **kw)
- 
+
     def _file_path(self, filename):
         name, ext = os.path.splitext(filename)
- 
+
         if py3k:
             py3k_path = os.path.join(template_base, name + "_py3k" + ext)
             if os.path.exists(py3k_path):
                 return py3k_path
- 
+
         return os.path.join(template_base, filename)
- 
-    def _do_file_test(self, filename, expected, filters=None, 
+
+    def _do_file_test(self, filename, expected, filters=None,
                         unicode_=True, template_args=None, **kw):
         t1 = self._file_template(filename, **kw)
-        self._do_test(t1, expected, filters=filters, 
+        self._do_test(t1, expected, filters=filters,
                         unicode_=unicode_, template_args=template_args)
- 
-    def _do_memory_test(self, source, expected, filters=None, 
+
+    def _do_memory_test(self, source, expected, filters=None,
                         unicode_=True, template_args=None, **kw):
         t1 = Template(text=source, **kw)
-        self._do_test(t1, expected, filters=filters, 
+        self._do_test(t1, expected, filters=filters,
                         unicode_=unicode_, template_args=template_args)
- 
+
     def _do_test(self, template, expected, filters=None, template_args=None, unicode_=True):
         if template_args is None:
             template_args = {}
@@ -46,11 +46,11 @@ class TemplateTest(unittest.TestCase):
             output = template.render_unicode(**template_args)
         else:
             output = template.render(**template_args)
- 
+
         if filters:
             output = filters(output)
         eq_(output, expected)
- 
+
 def eq_(a, b, msg=None):
     """Assert a == b, with repr messaging on failure."""
     assert a == b, msg or "%r != %r" % (a, b)
@@ -65,7 +65,7 @@ def assert_raises(except_cls, callable_, *args, **kw):
         success = False
     except except_cls, e:
         success = True
- 
+
     # assert outside the block so it works for AssertionError too !
     assert success, "Callable did not raise an exception"
 
@@ -106,4 +106,30 @@ def requires_no_pygments(fn):
         import pygments
     except:
         pygments = None
-    return skip_if(lambda:pygments is not None)(fn)
+    return skip_if(lambda: pygments is not None)(fn)
\ No newline at end of file
+
+class PlainCacheImpl(CacheImpl):
+    """Simple memory cache impl so that tests which
+    use caching can run without beaker.  """
+
+    def __init__(self, cache):
+        self.cache = cache
+        self.data = {}
+
+    def get_or_create(self, key, creation_function, **kw):
+        if key in self.data:
+            return self.data[key]
+        else:
+            self.data[key] = data = creation_function(**kw)
+            return data
+
+    def put(self, key, value, **kw):
+        self.data[key] = value
+
+    def get(self, key, **kw):
+        return self.data[key]
+
+    def invalidate(self, key, **kw):
+        del self.data[key]
+
+register_plugin("plain", __name__, "PlainCacheImpl")

test/test_cache.py

@@ -12,14 +12,17 @@ try:
 except:
     from nose import SkipTest
     raise SkipTest("Beaker is required for these tests.")
- 
+
 from mako.cache import register_plugin, CacheImpl
 
 class MockCacheImpl(CacheImpl):
     realcacheimpl = None
+
     def __init__(self, cache):
         self.cache = cache
-        use_beaker= self.cache.template.cache_args.get('use_beaker', True)
+        use_beaker = self.cache.\
+                    template.cache_args.\
+                    get('use_beaker', True)
         if use_beaker:
             self.realcacheimpl = cache._load_impl("beaker")
 
@@ -27,7 +30,8 @@ class MockCacheImpl(CacheImpl):
         self.key = key
         self.kwargs = kw.copy()
         if self.realcacheimpl:
-            return self.realcacheimpl.get_or_create(key, creation_function, **kw)
+            return self.realcacheimpl.\
+                    get_or_create(key, creation_function, **kw)
         else:
             return creation_function()
 
@@ -36,13 +40,13 @@ class MockCacheImpl(CacheImpl):
         self.kwargs = kw.copy()
         if self.realcacheimpl:
             self.realcacheimpl.put(key, value, **kw)
- 
+
     def get(self, key, **kw):
         self.key = key
         self.kwargs = kw.copy()
         if self.realcacheimpl:
             return self.realcacheimpl.get(key, **kw)
- 
+
     def invalidate(self, key, **kw):
         self.key = key
         self.kwargs = kw.copy()
@@ -104,7 +108,7 @@ class CacheTest(TemplateTest):
             callcount[0] += 1
             %>
         </%def>
- 
+
         ${foo()}
         ${foo()}
         ${foo()}
@@ -134,7 +138,7 @@ class CacheTest(TemplateTest):
         m = self._install_mock_cache(t)
 
         eq_(t.render().strip(), "callcount: [2]")
- 
+
     def test_nested_def(self):
         t = Template("""
         <%!
@@ -163,7 +167,7 @@ class CacheTest(TemplateTest):
             'callcount: [1]',
         ]
         assert m.kwargs == {}
- 
+
     def test_page(self):
         t = Template("""
         <%!
@@ -251,7 +255,7 @@ class CacheTest(TemplateTest):
         assert result_lines(t.render()) == ['hi']
         assert m.key == "foo_hi"
 
- 
+
     def test_dynamic_key_with_imports(self):
         lookup = TemplateLookup()
         lookup.put_string("foo.html", """
@@ -276,7 +280,7 @@ class CacheTest(TemplateTest):
             "callcount: [1]"
         ]
         assert m.kwargs == {}
- 
+
     def test_fileargs_implicit(self):
         l = lookup.TemplateLookup(module_directory=module_base)
         l.put_string("test","""
@@ -295,7 +299,7 @@ class CacheTest(TemplateTest):
                 ${foo()}
                 callcount: ${callcount}
         """)
- 
+
         m = self._install_mock_cache(l.get_template('test'))
         assert result_lines(l.get_template('test').render()) == [
             'this is foo',
@@ -304,7 +308,7 @@ class CacheTest(TemplateTest):
             'callcount: [1]',
         ]
         eq_(m.kwargs, {'type':'dbm'})
- 
+
     def test_fileargs_deftag(self):
         t = Template("""
         <%%!
@@ -369,7 +373,7 @@ class CacheTest(TemplateTest):
         m = self._install_mock_cache(t)
         t.render()
         eq_(m.kwargs, {'dir':module_base, 'type':'file', 'timeout':30})
- 
+
         t2 = Template("""
         <%%page cached="True" cache_timeout="30" cache_dir="%s" cache_type="file" cache_key='somekey'/>
         hi
@@ -396,7 +400,7 @@ class CacheTest(TemplateTest):
                 ${foo()}
                 callcount: ${callcount}
         """)
- 
+
         t = l.get_template('test')
         m = self._install_mock_cache(t)
         assert result_lines(l.get_template('test').render()) == [
@@ -406,7 +410,7 @@ class CacheTest(TemplateTest):
             'callcount: [1]',
         ]
         eq_(m.kwargs, {'dir':module_base, 'type':'file'})
- 
+
     def test_buffered(self):
         t = Template("""
         <%!
@@ -420,11 +424,11 @@ class CacheTest(TemplateTest):
         </%def>
         """, buffer_filters=["a"])
         assert result_lines(t.render()) == ["this is a this is a test", "this is a this is a test"]
- 
+
     def test_load_from_expired(self):
         """test that the cache callable can be called safely after the
         originating template has completed rendering.
- 
+
         """
         t = Template("""
         ${foo()}
@@ -432,12 +436,12 @@ class CacheTest(TemplateTest):
             foo
         </%def>
         """)
- 
+
         x1 = t.render()
         time.sleep(3)
         x2 = t.render()
         assert x1.strip() == x2.strip() == "foo"
- 
+
     def test_cache_uses_current_context(self):
         t = Template("""
         ${foo()}
@@ -445,7 +449,7 @@ class CacheTest(TemplateTest):
             foo: ${x}
         </%def>
         """)
- 
+
         x1 = t.render(x=1)
         time.sleep(3)
         x2 = t.render(x=2)
@@ -496,10 +500,10 @@ class CacheTest(TemplateTest):
         assert result_lines(t.render(x=3)) == ["foo: 3", "bar: 1"]
         t.cache.invalidate_def('bar')
         assert result_lines(t.render(x=4)) == ["foo: 3", "bar: 4"]
- 
+
         t = Template("""
             <%%page cached="True" cache_type="dbm" cache_dir="%s"/>
- 
+
             page: ${x}
         """ % module_base)
         assert result_lines(t.render(x=1)) == ["page: 1"]
@@ -507,10 +511,10 @@ class CacheTest(TemplateTest):
         t.cache.invalidate_body()
         assert result_lines(t.render(x=3)) == ["page: 3"]
         assert result_lines(t.render(x=4)) == ["page: 3"]
- 
+
     def test_custom_args_def(self):
         t = Template("""
-            <%def name="foo()" cached="True" cache_region="myregion" 
+            <%def name="foo()" cached="True" cache_region="myregion"
                     cache_timeout="50" cache_foo="foob">
             </%def>
             ${foo()}
@@ -521,7 +525,7 @@ class CacheTest(TemplateTest):
 
     def test_custom_args_block(self):
         t = Template("""
-            <%block name="foo" cached="True" cache_region="myregion" 
+            <%block name="foo" cached="True" cache_region="myregion"
                     cache_timeout="50" cache_foo="foob">
             </%block>
         """, cache_args={'use_beaker':False})
@@ -531,7 +535,7 @@ class CacheTest(TemplateTest):
 
     def test_custom_args_page(self):
         t = Template("""
-            <%page cached="True" cache_region="myregion" 
+            <%page cached="True" cache_region="myregion"
                     cache_timeout="50" cache_foo="foob"/>
         """, cache_args={'use_beaker':False})
         m = self._install_mock_cache(t)

test/test_def.py

@@ -438,6 +438,54 @@ class ScopeTest(TemplateTest):
             "this is a, x is 15"
         ])
 
+    def test_inline_expression_from_arg_one(self):
+        """test that cache_key=${foo} gets its value from
+        the 'foo' argument in the <%def> tag,
+        and strict_undefined doesn't complain.
+
+        this is #191.
+
+        """
+        t = Template("""
+        <%def name="layout(foo)" cached="True" cache_key="${foo}">
+        foo: ${foo}
+        </%def>
+
+        ${layout(3)}
+        """, strict_undefined=True,
+            cache_impl="plain")
+
+        eq_(
+            result_lines(t.render()),
+            ["foo: 3"]
+        )
+
+    def test_interpret_expression_from_arg_two(self):
+        """test that cache_key=${foo} gets its value from
+        the 'foo' argument regardless of it being passed
+        from the context.
+
+        This is here testing that there's no change
+        to existing behavior before and after #191.
+
+        """
+        t = Template("""
+        <%def name="layout(foo)" cached="True" cache_key="${foo}">
+        foo: ${value}
+        </%def>
+
+        ${layout(3)}
+        """, cache_impl="plain")
+
+        eq_(
+            result_lines(t.render(foo='foo', value=1)),
+            ["foo: 1"]
+        )
+        eq_(
+            result_lines(t.render(foo='bar', value=2)),
+            ["foo: 1"]
+        )
+
 class NestedDefTest(TemplateTest):
     def test_nested_def(self):
         t = Template("""