1 files changed, 25 insertions, 0 deletions
diff --git a/compiler/aup.h b/compiler/aup.h
new file mode 100644
index 0000000..98b59b0
--- /dev/null
+++ b/compiler/aup.h
@@ -0,0 +1,25 @@
+#ifndef AUP_H
+#define AUP_H
+#include <stdbool.h>
+#include <stddef.h>
+
+/* aup: source text to a Pure module (Pure docs/design/008-module-format.md). */
+enum { AUP_SOURCE_LIMIT = 32768, AUP_MESSAGE = 256, AUP_PATH = 256 };
+
+typedef struct {
+    char path[AUP_PATH]; /* the library the error is in, or "" for the main source */
+    int line, column;
+    char message[AUP_MESSAGE];
+} AupDiagnostic;
+
+/* Finds the library that `use name` names: its source, alive until
+ * aup_compile returns, and a path that diagnostics show. */
+typedef bool (*AupLoad)(void *context, const char *name, const char **source, size_t *length,
+                        char path[AUP_PATH]);
+
+/* Compile source into a newly allocated module (free with free()). The same
+ * sources always produce the same bytes. On failure *module is NULL and the
+ * diagnostic names the first error. load may be NULL when nothing is used. */
+bool aup_compile(const char *source, size_t length, AupLoad load, void *context,
+                 unsigned char **module, size_t *size, AupDiagnostic *error);
+#endif