C++ check code

Cython/Compiler/ExprNodes.py

@@ -1089,6 +1089,7 @@ class NewExprNode(AtomicExprNode):
         if entry is None or not entry.is_cpp_class:
             error(self.pos, "new operator can only be applied to a C++ class")
             return
+        self.cpp_check(env)
         if self.template_parameters is not None:
             template_types = [v.analyse_as_type(env) for v in self.template_parameters]
             type = entry.type.specialize_here(self.pos, template_types)

Cython/Compiler/Main.py

@@ -59,7 +59,7 @@ class Context(object):
     #  include_directories   [string]
     #  future_directives     [object]
     
-    def __init__(self, include_directories, pragma_overrides):
+    def __init__(self, include_directories, pragma_overrides, cpp=False):
         #self.modules = {"__builtin__" : BuiltinScope()}
         import Builtin, CythonScope
         self.modules = {"__builtin__" : Builtin.builtin_scope}
@@ -67,6 +67,7 @@ class Context(object):
         self.include_directories = include_directories
         self.future_directives = set()
         self.pragma_overrides = pragma_overrides
+        self.cpp = cpp
 
         self.pxds = {} # full name -> node tree
 
@@ -423,6 +424,7 @@ class Context(object):
         if not isinstance(source_desc, FileSourceDescriptor):
             raise RuntimeError("Only file sources for code supported")
         source_filename = Utils.encode_filename(source_desc.filename)
+        scope.cpp = self.cpp
         # Parse the given source file and return a parse tree.
         try:
             f = Utils.open_source_file(source_filename, "rU")
@@ -521,7 +523,7 @@ def create_default_resultobj(compilation_source, options):
 
 def run_pipeline(source, options, full_module_name = None):
     # Set up context
-    context = Context(options.include_path, options.pragma_overrides)
+    context = Context(options.include_path, options.pragma_overrides, options.cplus)
 
     # Set up source object
     cwd = os.getcwd()

Cython/Compiler/Nodes.py

@@ -138,6 +138,15 @@ class Node(object):
 
     def gil_error(self):
         error(self.pos, "%s not allowed without gil" % self.gil_message)
+    
+    cpp_message = "Operation"
+    
+    def cpp_check(self, env):
+        if not env.is_cpp():
+            self.cpp_error()
+
+    def cpp_error(self):
+        error(self.pos, "%s only allowed in c++" % self.cpp_message)
 
     def clone_node(self):
         """Clone the node. This is defined as a shallow copy, except for member lists
@@ -3430,7 +3439,7 @@ class DelStatNode(StatNode):
             if arg.type.is_pyobject:
                 self.gil_check(env)
             elif arg.type.is_ptr and arg.type.base_type.is_cpp_class:
-                pass
+                self.cpp_check(env)
             elif arg.type.is_cpp_class:
                 error(arg.pos, "Deletion of non-heap C++ object")
             else:

Cython/Compiler/Symtab.py

@@ -700,6 +700,9 @@ class Scope(object):
             if name in self.entries:    
                 return 1
         return 0
+    
+    def is_cpp(self):
+        return self.outer_scope.is_cpp()
 
 class PreImportScope(Scope):
 
@@ -832,6 +835,7 @@ class ModuleScope(Scope):
     # all_pystring_entries [Entry]            Python string consts from all scopes
     # types_imported       {PyrexType : 1}    Set of types for which import code generated
     # has_import_star      boolean            Module contains import *
+    # cpp                  boolean            Compiling a C++ file
     
     is_module_scope = 1
     has_import_star = 0
@@ -1240,6 +1244,9 @@ class ModuleScope(Scope):
         var_entry.is_cglobal = 1
         var_entry.is_readonly = 1
         entry.as_variable = var_entry
+    
+    def is_cpp(self):
+        return self.cpp
         
 class LocalScope(Scope):