Make SerdSink opaque

1 files changed, 52 insertions, 11 deletions

diff --git a/serd/serd.h b/serd/serd.h
index 3d6b046d..e4631dd4 100644
--- a/serd/serd.h
+++ b/serd/serd.h
@@ -100,6 +100,11 @@ typedef struct SerdReaderImpl SerdReader;
 typedef struct SerdWriterImpl SerdWriter;
 
 /**
+   An interface that receives a stream of RDF data.
+*/
+typedef struct SerdSinkImpl SerdSink;
+
+/**
    Return status code.
 */
 typedef enum {
@@ -794,17 +799,6 @@ typedef SerdStatus (*SerdEndSink)(void*           handle,
                                   const SerdNode* node);
 
 /**
-   An interface that receives a stream of RDF data.
-*/
-typedef struct SerdSink {
-	void*             handle;
-	SerdBaseSink      base;
-	SerdPrefixSink    prefix;
-	SerdStatementSink statement;
-	SerdEndSink       end;
-} SerdSink;
-
-/**
    @}
    @name World
    @{
@@ -933,6 +927,53 @@ serd_env_foreach(const SerdEnv* env,
 */
 
 /**
+   Create a new sink.
+
+   Initially, the sink has no set functions and will do nothing.  Use the
+   serd_sink_set_*_func functions to set handlers for various events.
+
+   @param handle Opaque handle that will be passed to sink functions.
+*/
+SERD_API
+SerdSink*
+serd_sink_new(void* handle);
+
+/**
+   Free `sink`.
+*/
+SERD_API
+void
+serd_sink_free(SerdSink* sink);
+
+/**
+   Set a function to be called when the base URI changes.
+*/
+SERD_API
+SerdStatus
+serd_sink_set_base_func(SerdSink* sink, SerdBaseSink base_func);
+
+/**
+   Set a function to be called when a namespace prefix is defined.
+*/
+SERD_API
+SerdStatus
+serd_sink_set_prefix_func(SerdSink* sink, SerdPrefixSink prefix_func);
+
+/**
+   Set a function to be called when a statement is emitted.
+*/
+SERD_API
+SerdStatus
+serd_sink_set_statement_func(SerdSink* sink, SerdStatementSink statement_func);
+
+/**
+   Set a function to be called when an anonymous node ends.
+*/
+SERD_API
+SerdStatus
+serd_sink_set_end_func(SerdSink* sink, SerdEndSink end_func);
+
+/**
    Set the base URI.
 
    Simple wrapper for the `SerdBaseSink` of `sink`.