1 files changed, 17 insertions, 0 deletions
diff --git a/parts/precedence.h b/parts/precedence.h
new file mode 100644
index 0000000..37e54c6
--- /dev/null
+++ b/parts/precedence.h
@@ -0,0 +1,17 @@
+#ifndef PRECEDENCE_H
+#define PRECEDENCE_H
+
+enum precedence_flag {
+    PRECEDENCE_LEFT_ASSOC,
+    PRECEDENCE_RIGHT_ASSOC,
+    // PRECEDENCE_NO_ASSOC,
+};
+
+#define PRECEDENCE_SET(num, flag) (((num) << 1 /*2*/) | (flag))
+#define PRECEDENCE_NUM(prec) ((prec) >> 2)
+#define PRECEDENCE_FLAG(prec) ((prec) & 0x3)
+
+extern int *precedence_symbol;
+extern int *precedence_production;
+
+#endif