meta: add ivy-diag library

ivy-diag is used for generating and emitting diagnostic messages during compilation.

diag/ctx.h

@@ -0,0 +1,26 @@
+#ifndef _DIAG_CTX_H_
+#define _DIAG_CTX_H_
+
+#include <blue/core/queue.h>
+#include <ivy/diag.h>
+
+struct ivy_line_source;
+
+struct ivy_diag_ctx {
+	struct ivy_line_source *ctx_line_source;
+
+	const struct ivy_diag_class *ctx_classes;
+	size_t ctx_nr_classes;
+
+	const struct ivy_diag_msg *ctx_msg;
+	size_t ctx_nr_msg;
+
+	b_queue ctx_diags;
+};
+
+extern const struct ivy_diag_class *diag_ctx_get_class(
+	struct ivy_diag_ctx *ctx, unsigned long class_id);
+extern const struct ivy_diag_msg *diag_ctx_get_msg(
+	struct ivy_diag_ctx *ctx, unsigned long msg_id);
+
+#endif