json: Have lexer call streamer directly

json_lexer_init() takes the function to process a token as an
argument.  It's always json_message_process_token().  Makes the code
harder to understand for no actual gain.  Drop the indirection.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180823164025.12553-34-armbru@redhat.com>

2 files changed, 6 insertions, 10 deletions

diff --git a/include/qapi/qmp/json-lexer.h b/include/qapi/qmp/json-lexer.h
index 66ccf03..44bcf2c 100644
--- a/include/qapi/qmp/json-lexer.h
+++ b/include/qapi/qmp/json-lexer.h
@@ -32,20 +32,13 @@ typedef enum json_token_type {
     JSON_ERROR,
 } JSONTokenType;
 
-typedef struct JSONLexer JSONLexer;
-
-typedef void (JSONLexerEmitter)(JSONLexer *, GString *,
-                                JSONTokenType, int x, int y);
-
-struct JSONLexer
-{
-    JSONLexerEmitter *emit;
+typedef struct JSONLexer {
     int state;
     GString *token;
     int x, y;
-};
+} JSONLexer;
 
-void json_lexer_init(JSONLexer *lexer, JSONLexerEmitter func);
+void json_lexer_init(JSONLexer *lexer);
 
 void json_lexer_feed(JSONLexer *lexer, const char *buffer, size_t size);
 
diff --git a/include/qapi/qmp/json-streamer.h b/include/qapi/qmp/json-streamer.h
index cb808cf..7922e18 100644
--- a/include/qapi/qmp/json-streamer.h
+++ b/include/qapi/qmp/json-streamer.h
@@ -33,6 +33,9 @@ typedef struct JSONMessageParser
     uint64_t token_size;
 } JSONMessageParser;
 
+void json_message_process_token(JSONLexer *lexer, GString *input,
+                                JSONTokenType type, int x, int y);
+
 void json_message_parser_init(JSONMessageParser *parser,
                               void (*func)(JSONMessageParser *, GQueue *));