feat: add utility function to dump any internal object as JSON

1 files changed, 34 insertions, 0 deletions

diff --git a/src/json.h b/src/json.h
new file mode 100644
index 0000000..b542f4a
--- /dev/null
+++ b/src/json.h
@@ -0,0 +1,34 @@
+#ifndef DUCC_JSON_H
+#define DUCC_JSON_H
+
+#include "std.h"
+
+struct JsonBuilder;
+typedef struct JsonBuilder JsonBuilder;
+
+JsonBuilder* jsonbuilder_new();
+const char* jsonbuilder_get_output(JsonBuilder* b);
+
+void jsonbuilder_object_start(JsonBuilder* b);
+void jsonbuilder_object_end(JsonBuilder* b);
+void jsonbuilder_object_member_start(JsonBuilder* b, const char* key);
+void jsonbuilder_object_member_end(JsonBuilder* b);
+
+void jsonbuilder_array_start(JsonBuilder* b);
+void jsonbuilder_array_end(JsonBuilder* b);
+void jsonbuilder_array_element_start(JsonBuilder* b);
+void jsonbuilder_array_element_end(JsonBuilder* b);
+
+void jsonbuilder_null(JsonBuilder* b);
+void jsonbuilder_boolean(JsonBuilder* b, BOOL value);
+void jsonbuilder_integer(JsonBuilder* b, int value);
+void jsonbuilder_string(JsonBuilder* b, const char* value);
+
+#define JSON_DUMP(x, f) \
+    do { \
+        JsonBuilder* _builder = jsonbuilder_new(); \
+        f(_builder, (x)); \
+        fprintf(stderr, "%s", jsonbuilder_get_output(_builder)); \
+    } while (0)
+
+#endif