commit a2309996679350a249beeac34efd65ff703f5b23
author David Reiss <dreiss@apache.org> 周三 12月 10 01:52:48 2008 +0000
committer David Reiss <dreiss@apache.org> 周三 12月 10 01:52:48 2008 +0000
tree 907fff4f8a067c923c864f978b7452d3ec2b9b4e
parent 322e595c2ac8a7ff4ef53cc472882d85e36000a0

THRIFT-121. Support arbitrary type annotations

Adds syntax for attaching arbitrary key/value pairs to types.
These annotations can be accessed by individual generators to alter
the code they produce.

This version supports annotations on container types and structures.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@724954 13f79535-47bb-0310-9956-ffa450edef68

compiler/cpp/src/thrifty.yy

diff --git a/compiler/cpp/src/thrifty.yy b/compiler/cpp/src/thrifty.yy
index e5f1736..f27e9ab 100644
--- a/compiler/cpp/src/thrifty.yy
+++ b/compiler/cpp/src/thrifty.yy
@@ -56,6 +56,7 @@
   t_field*       tfield;
   char*          dtext;
   t_field::e_req ereq;
+  t_annotation*  tannot;
 }
 
 /**
@@ -142,6 +143,7 @@
 
 %type<ttype>     BaseType
 %type<ttype>     ContainerType
+%type<ttype>     SimpleContainerType
 %type<ttype>     MapType
 %type<ttype>     SetType
 %type<ttype>     ListType
@@ -152,6 +154,10 @@
 %type<ttypedef>  Typedef
 %type<ttype>     DefinitionType
 
+%type<ttype>     TypeAnnotations
+%type<ttype>     TypeAnnotationList
+%type<tannot>    TypeAnnotation
+
 %type<tfield>    Field
 %type<iconst>    FieldIdentifier
 %type<ereq>      FieldRequiredness
@@ -658,12 +664,16 @@
     }
 
 Struct:
-  tok_struct tok_identifier XsdAll '{' FieldList '}'
+  tok_struct tok_identifier XsdAll '{' FieldList '}' TypeAnnotations
     {
       pdebug("Struct -> tok_struct tok_identifier { FieldList }");
-      $5->set_name($2);
       $5->set_xsd_all($3);
       $$ = $5;
+      $$->set_name($2);
+      if ($7 != NULL) {
+        $$->annotations_ = $7->annotations_;
+        delete $7;
+      }
       y_field_val = -1;
     }
 
@@ -997,20 +1007,30 @@
       $$ = g_type_double;
     }
 
-ContainerType:
+ContainerType: SimpleContainerType TypeAnnotations
+    {
+      pdebug("ContainerType -> SimpleContainerType TypeAnnotations");
+      $$ = $1;
+      if ($2 != NULL) {
+        $$->annotations_ = $2->annotations_;
+        delete $2;
+      }
+    }
+
+SimpleContainerType:
   MapType
     {
-      pdebug("ContainerType -> MapType");
+      pdebug("SimpleContainerType -> MapType");
       $$ = $1;
     }
 | SetType
     {
-      pdebug("ContainerType -> SetType");
+      pdebug("SimpleContainerType -> SetType");
       $$ = $1;
     }
 | ListType
     {
-      pdebug("ContainerType -> ListType");
+      pdebug("SimpleContainerType -> ListType");
       $$ = $1;
     }
 
@@ -1054,4 +1074,38 @@
       $$ = NULL;
     }
 
+TypeAnnotations:
+  '(' TypeAnnotationList ')'
+    {
+      pdebug("TypeAnnotations -> ( TypeAnnotationList )");
+      $$ = $2;
+    }
+|
+    {
+      $$ = NULL;
+    }
+
+TypeAnnotationList:
+  TypeAnnotationList TypeAnnotation
+    {
+      pdebug("TypeAnnotationList -> TypeAnnotationList , TypeAnnotation");
+      $$ = $1;
+      $$->annotations_[$2->key] = $2->val;
+      delete $2;
+    }
+|
+    {
+      /* Just use a dummy structure to hold the annotations. */
+      $$ = new t_struct(g_program);
+    }
+
+TypeAnnotation:
+  tok_identifier '=' tok_literal CommaOrSemicolonOptional
+    {
+      pdebug("TypeAnnotation -> tok_identifier = tok_literal");
+      $$ = new t_annotation;
+      $$->key = $1;
+      $$->val = $3;
+    }
+
 %%