From 480200f0ea2fb908d08fc15f33f0e112e7d835b0 Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@cloudius-systems.com>
Date: Mon, 6 Jul 2015 10:07:20 +0300
Subject: [PATCH] cql3: Enable truncate statement grammar definition

Truncate statement AST class is converted to C++ (although its
functionality is unimplemented). Enable the CQL grammar definition so
that users get an "not implemented" error instead of a syntax error.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
---
 cql3/Cql.g                            | 9 +++++----
 cql3/statements/truncate_statement.hh | 8 ++++++--
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/cql3/Cql.g b/cql3/Cql.g
index a1166d2a0b..d85b92d41a 100644
--- a/cql3/Cql.g
+++ b/cql3/Cql.g
@@ -34,6 +34,7 @@ options {
 #include "cql3/statements/create_keyspace_statement.hh"
 #include "cql3/statements/create_table_statement.hh"
 #include "cql3/statements/property_definitions.hh"
+#include "cql3/statements/truncate_statement.hh"
 #include "cql3/statements/select_statement.hh"
 #include "cql3/statements/update_statement.hh"
 #include "cql3/statements/delete_statement.hh"
@@ -253,9 +254,7 @@ cqlStatement returns [shared_ptr<parsed_statement> stmt]
     | st4= batchStatement              { $stmt = st4; }
     | st5= deleteStatement             { $stmt = st5; }
     | st6= useStatement                { $stmt = st6; }
-#if 0
     | st7= truncateStatement           { $stmt = st7; }
-#endif
     | st8= createKeyspaceStatement     { $stmt = st8; }
     | st9= createTableStatement        { $stmt = st9; }
 #if 0
@@ -839,14 +838,16 @@ dropIndexStatement returns [DropIndexStatement expr]
     : K_DROP K_INDEX (K_IF K_EXISTS { ifExists = true; } )? index=indexName
       { $expr = new DropIndexStatement(index, ifExists); }
     ;
+#endif
 
 /**
   * TRUNCATE <CF>;
   */
-truncateStatement returns [TruncateStatement stmt]
-    : K_TRUNCATE cf=columnFamilyName { $stmt = new TruncateStatement(cf); }
+truncateStatement returns [::shared_ptr<truncate_statement> stmt]
+    : K_TRUNCATE cf=columnFamilyName { $stmt = ::make_shared<truncate_statement>(cf); }
     ;
 
+#if 0
 /**
  * GRANT <permission> ON <resource> TO <username>
  */
diff --git a/cql3/statements/truncate_statement.hh b/cql3/statements/truncate_statement.hh
index 49f1823e60..41eaedf67d 100644
--- a/cql3/statements/truncate_statement.hh
+++ b/cql3/statements/truncate_statement.hh
@@ -33,9 +33,9 @@ namespace cql3 {
 
 namespace statements {
 
-class truncate_statement : public cf_statement, public virtual cql_statement, public ::enable_shared_from_this<truncate_statement> {
+class truncate_statement : public cf_statement, public cql_statement, public ::enable_shared_from_this<truncate_statement> {
 public:
-    truncate_statement(::shared_ptr<cf_name>&& name)
+    truncate_statement(::shared_ptr<cf_name> name)
         : cf_statement{std::move(name)}
     { }
 
@@ -47,6 +47,10 @@ public:
         return ::make_shared<parsed_statement::prepared>(this->shared_from_this());
     }
 
+    virtual bool uses_function(const sstring& ks_name, const sstring& function_name) const override {
+        return parsed_statement::uses_function(ks_name, function_name);
+    }
+
     virtual void check_access(const service::client_state& state) override {
         throw std::runtime_error("not implemented");
 #if 0