Merge #6112 from ZyX-I/split-eval'/buf_get_changedtick

Better b:changedtick support

1 files changed, 24 insertions, 8 deletions

diff --git a/src/nvim/api/buffer.c b/src/nvim/api/buffer.c
index 738a5ae091..7f6e1093ed 100644
--- a/src/nvim/api/buffer.c
+++ b/src/nvim/api/buffer.c
@@ -411,10 +411,10 @@ end:
 
 /// Gets a buffer-scoped (b:) variable.
 ///
-/// @param buffer     Buffer handle
-/// @param name       Variable name
-/// @param[out] err   Error details, if any
-/// @return Variable value
+/// @param buffer The buffer handle
+/// @param name The variable name
+/// @param[out] err Details of an error that may have occurred
+/// @return The variable value
 Object nvim_buf_get_var(Buffer buffer, String name, Error *err)
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
@@ -426,6 +426,22 @@ Object nvim_buf_get_var(Buffer buffer, String name, Error *err)
   return dict_get_value(buf->b_vars, name, err);
 }
 
+/// Gets a changed tick of a buffer
+///
+/// @param[in]  buffer  The buffer handle.
+///
+/// @return `b:changedtick` value.
+Integer nvim_buf_get_changedtick(Buffer buffer, Error *err)
+{
+  const buf_T *const buf = find_buffer_by_handle(buffer, err);
+
+  if (!buf) {
+    return -1;
+  }
+
+  return buf->b_changedtick;
+}
+
 /// Sets a buffer-scoped (b:) variable
 ///
 /// @param buffer     Buffer handle
@@ -440,7 +456,7 @@ void nvim_buf_set_var(Buffer buffer, String name, Object value, Error *err)
     return;
   }
 
-  dict_set_value(buf->b_vars, name, value, false, false, err);
+  dict_set_var(buf->b_vars, name, value, false, false, err);
 }
 
 /// Removes a buffer-scoped (b:) variable
@@ -456,7 +472,7 @@ void nvim_buf_del_var(Buffer buffer, String name, Error *err)
     return;
   }
 
-  dict_set_value(buf->b_vars, name, NIL, true, false, err);
+  dict_set_var(buf->b_vars, name, NIL, true, false, err);
 }
 
 /// Sets a buffer-scoped (b:) variable
@@ -479,7 +495,7 @@ Object buffer_set_var(Buffer buffer, String name, Object value, Error *err)
     return (Object) OBJECT_INIT;
   }
 
-  return dict_set_value(buf->b_vars, name, value, false, true, err);
+  return dict_set_var(buf->b_vars, name, value, false, true, err);
 }
 
 /// Removes a buffer-scoped (b:) variable
@@ -498,7 +514,7 @@ Object buffer_del_var(Buffer buffer, String name, Error *err)
     return (Object) OBJECT_INIT;
   }
 
-  return dict_set_value(buf->b_vars, name, NIL, true, true, err);
+  return dict_set_var(buf->b_vars, name, NIL, true, true, err);
 }