wip unions

Signed-off-by: Pantelis Antoniou <[email protected]>

src/reflection/fy-reflection.c

@@ -2871,3 +2871,80 @@ fy_type_info_get_id(const struct fy_type_info *ti)
 	ft = fy_type_from_info(ti);
 	return ft ? ft->id : -1;
 }
+
+#if 0
+struct fy_type_stack {
+	int top;
+	int alloc;
+	struct fy_type **fts;
+};
+
+static inline void
+fy_type_stack_setup(struct fy_type_stack *fts)
+{
+	if (!fts)
+		return;
+	memset(fts, 0, sizeof(*fts));
+}
+
+static inline void
+fy_type_stack_cleanup(struct fy_type_stack *fts)
+{
+	if (!fts)
+		return;
+
+	if (fts->fts)
+		free(fts->fts);
+}
+
+static inline struct type *
+fy_type_stack_pop(struct fy_type_stack *fts)
+{
+	if (!fts || fts->top <= 0)
+		return NULL;
+
+	return fts->fts[--fts->top];
+}
+
+static inline int
+fy_type_stack_push(struct fy_type_stack *fts, struct type *rtd)
+{
+	int new_alloc;
+	struct type **new_rtds;
+
+	if (!fts || !rtd)
+		return -1;
+
+	/* add */
+	if (fts->top >= fts->alloc) {
+		new_alloc = fts->alloc * 2;
+		if (!new_alloc)
+			new_alloc = 16;
+		if (new_alloc < 0)	/* overflow */
+			return -1;
+		new_rtds = realloc(fts->fts, sizeof(*fts->fts) * new_alloc);
+		if (!new_rtds)
+			return -1;
+		fts->fts = new_rtds;
+		fts->alloc = new_alloc;
+	}
+	fts->fts[fts->top++] = rtd;
+	return 0;
+}
+
+static inline struct fy_type *
+fy_type_stack_find(struct fy_type_stack *fts, const struct fy_type *ft)
+{
+	struct type *rtd;
+	int i;
+
+	if (!fts || !ft)
+		return NULL;
+
+	for (i = 0; i < fts->top; i++) {
+		if (fts->fts[i] == ft)
+			return fts->fts[i];
+	}
+	return NULL;
+}
+#endif