[Qemu-devel] [PATCH v9 26/27] qapi: Remove dead visitor code

[Eric Blake <eblake@redhat.com>]

Commit cbc95538 removed unused start_handle() and end_handle(),
but forgot got remove their declarations.

Commit 4e27e819 introduced optional visitor callbacks for all
sorts of int types, but except for type_uint64 and type_size,
none of them have ever been supplied (the generic implementation
based on using type_int then bounds-checking works just fine).
In the interest of simplicity, it's easier to make the visitor
callback interface not have to worry about the other sizes.

Signed-off-by: Eric Blake <eblake@redhat.com>

---
v9: no change
v8: no change
v7: no change
v6: no change
---
 include/qapi/visitor-impl.h |  19 +++----
 include/qapi/visitor.h      |   3 -
 qapi/qapi-visit-core.c      | 131 +++++++++++++++++---------------------------
 3 files changed, 58 insertions(+), 95 deletions(-)

diff --git a/include/qapi/visitor-impl.h b/include/qapi/visitor-impl.h
index 1d09b7b..370935a 100644
--- a/include/qapi/visitor-impl.h
+++ b/include/qapi/visitor-impl.h
@@ -1,7 +1,7 @@
 /*
  * Core Definitions for QAPI Visitor implementations
  *
- * Copyright (C) 2012 Red Hat, Inc.
+ * Copyright (C) 2012, 2015 Red Hat, Inc.
  *
  * Author: Paolo Bonizni <pbonzini@redhat.com>
  *
@@ -48,18 +48,15 @@ struct Visitor
     void (*optional)(Visitor *v, bool *present, const char *name,
                      Error **errp);

-    void (*type_uint8)(Visitor *v, uint8_t *obj, const char *name, Error **errp);
-    void (*type_uint16)(Visitor *v, uint16_t *obj, const char *name, Error **errp);
-    void (*type_uint32)(Visitor *v, uint32_t *obj, const char *name, Error **errp);
-    void (*type_uint64)(Visitor *v, uint64_t *obj, const char *name, Error **errp);
-    void (*type_int8)(Visitor *v, int8_t *obj, const char *name, Error **errp);
-    void (*type_int16)(Visitor *v, int16_t *obj, const char *name, Error **errp);
-    void (*type_int32)(Visitor *v, int32_t *obj, const char *name, Error **errp);
-    void (*type_int64)(Visitor *v, int64_t *obj, const char *name, Error **errp);
-    /* visit_type_size() falls back to (*type_uint64)() if type_size is unset */
-    void (*type_size)(Visitor *v, uint64_t *obj, const char *name, Error **errp);
     bool (*start_union)(Visitor *v, bool data_present, Error **errp);
     void (*end_union)(Visitor *v, bool data_present, Error **errp);
+
+    /* Only required to visit uint64 differently than (*type_int)().  */
+    void (*type_uint64)(Visitor *v, uint64_t *obj, const char *name,
+                        Error **errp);
+    /* Only required to visit sizes differently than (*type_uint64)().  */
+    void (*type_size)(Visitor *v, uint64_t *obj, const char *name,
+                      Error **errp);
 };

 void input_type_enum(Visitor *v, int *obj, const char * const strings[],
diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h
index baea594..67ddd83 100644
--- a/include/qapi/visitor.h
+++ b/include/qapi/visitor.h
@@ -27,9 +27,6 @@ typedef struct GenericList
     struct GenericList *next;
 } GenericList;

-void visit_start_handle(Visitor *v, void **obj, const char *kind,
-                        const char *name, Error **errp);
-void visit_end_handle(Visitor *v, Error **errp);
 void visit_start_struct(Visitor *v, void **obj, const char *kind,
                         const char *name, size_t size, Error **errp);
 void visit_end_struct(Visitor *v, Error **errp);
diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index 884fe94..cbf7780 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -104,57 +104,48 @@ void visit_type_uint8(Visitor *v, uint8_t *obj, const char *name, Error **errp)
 {
     int64_t value;

-    if (v->type_uint8) {
-        v->type_uint8(v, obj, name, errp);
-    } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        if (value < 0 || value > UINT8_MAX) {
-            error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                       name ? name : "null", "uint8_t");
-            return;
-        }
-        *obj = value;
+    value = *obj;
+    v->type_int(v, &value, name, errp);
+    if (value < 0 || value > UINT8_MAX) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   name ? name : "null", "uint8_t");
+        return;
     }
+    *obj = value;
 }

-void visit_type_uint16(Visitor *v, uint16_t *obj, const char *name, Error **errp)
+void visit_type_uint16(Visitor *v, uint16_t *obj, const char *name,
+                       Error **errp)
 {
     int64_t value;

-    if (v->type_uint16) {
-        v->type_uint16(v, obj, name, errp);
-    } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        if (value < 0 || value > UINT16_MAX) {
-            error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                       name ? name : "null", "uint16_t");
-            return;
-        }
-        *obj = value;
+    value = *obj;
+    v->type_int(v, &value, name, errp);
+    if (value < 0 || value > UINT16_MAX) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   name ? name : "null", "uint16_t");
+        return;
     }
+    *obj = value;
 }

-void visit_type_uint32(Visitor *v, uint32_t *obj, const char *name, Error **errp)
+void visit_type_uint32(Visitor *v, uint32_t *obj, const char *name,
+                       Error **errp)
 {
     int64_t value;

-    if (v->type_uint32) {
-        v->type_uint32(v, obj, name, errp);
-    } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        if (value < 0 || value > UINT32_MAX) {
-            error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                       name ? name : "null", "uint32_t");
-            return;
-        }
-        *obj = value;
+    value = *obj;
+    v->type_int(v, &value, name, errp);
+    if (value < 0 || value > UINT32_MAX) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   name ? name : "null", "uint32_t");
+        return;
     }
+    *obj = value;
 }

-void visit_type_uint64(Visitor *v, uint64_t *obj, const char *name, Error **errp)
+void visit_type_uint64(Visitor *v, uint64_t *obj, const char *name,
+                       Error **errp)
 {
     int64_t value;

@@ -171,77 +162,55 @@ void visit_type_int8(Visitor *v, int8_t *obj, const char *name, Error **errp)
 {
     int64_t value;

-    if (v->type_int8) {
-        v->type_int8(v, obj, name, errp);
-    } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        if (value < INT8_MIN || value > INT8_MAX) {
-            error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                       name ? name : "null", "int8_t");
-            return;
-        }
-        *obj = value;
+    value = *obj;
+    v->type_int(v, &value, name, errp);
+    if (value < INT8_MIN || value > INT8_MAX) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   name ? name : "null", "int8_t");
+        return;
     }
+    *obj = value;
 }

 void visit_type_int16(Visitor *v, int16_t *obj, const char *name, Error **errp)
 {
     int64_t value;

-    if (v->type_int16) {
-        v->type_int16(v, obj, name, errp);
-    } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        if (value < INT16_MIN || value > INT16_MAX) {
-            error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                       name ? name : "null", "int16_t");
-            return;
-        }
-        *obj = value;
+    value = *obj;
+    v->type_int(v, &value, name, errp);
+    if (value < INT16_MIN || value > INT16_MAX) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   name ? name : "null", "int16_t");
+        return;
     }
+    *obj = value;
 }

 void visit_type_int32(Visitor *v, int32_t *obj, const char *name, Error **errp)
 {
     int64_t value;

-    if (v->type_int32) {
-        v->type_int32(v, obj, name, errp);
-    } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        if (value < INT32_MIN || value > INT32_MAX) {
-            error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                       name ? name : "null", "int32_t");
-            return;
-        }
-        *obj = value;
+    value = *obj;
+    v->type_int(v, &value, name, errp);
+    if (value < INT32_MIN || value > INT32_MAX) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   name ? name : "null", "int32_t");
+        return;
     }
+    *obj = value;
 }

 void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp)
 {
-    if (v->type_int64) {
-        v->type_int64(v, obj, name, errp);
-    } else {
-        v->type_int(v, obj, name, errp);
-    }
+    v->type_int(v, obj, name, errp);
 }

 void visit_type_size(Visitor *v, uint64_t *obj, const char *name, Error **errp)
 {
-    int64_t value;
-
     if (v->type_size) {
         v->type_size(v, obj, name, errp);
-    } else if (v->type_uint64) {
-        v->type_uint64(v, obj, name, errp);
     } else {
-        value = *obj;
-        v->type_int(v, &value, name, errp);
-        *obj = value;
+        visit_type_uint64(v, obj, name, errp);
     }
 }

-- 
2.4.3