Add data structures for types

1 files changed, 75 insertions, 0 deletions

diff --git a/include/type.h b/include/type.h
new file mode 100644
index 0000000..aa745b7
--- /dev/null
+++ b/include/type.h
@@ -0,0 +1,75 @@
+#ifndef CERC_TYPE_H
+#define CERC_TYPE_H
+#include <stdbool.h>
+#include <stdint.h>
+
+struct cer_int {
+	bool sign;
+	short bits;
+};
+
+struct cer_float {
+	bool is64;
+};
+
+struct cer_array {
+	struct type *member_type;
+	int length;
+};
+
+struct cer_slice {
+	struct type *member_type;
+};
+
+struct field {
+	const char *name;
+	struct type *type;
+};
+
+struct cer_struct {
+	struct field *fields;
+};
+
+struct variant {
+	const char *name;
+	uint64_t tag;
+};
+
+struct cer_enum {
+	struct cer_int *tag_type;
+	struct variant variants[];
+};
+
+struct cer_union {
+	struct type *alts;
+};
+
+enum type_kind {
+	TYP_INT,
+	TYP_FLOAT,
+	TYP_ARRAY,
+	TYP_SLICE,
+	TYP_STRUCT,
+	TYP_ENUM,
+	TYP_UNION,
+	TYP_POINTER,
+	TYP_OPTIONAL,
+	TYP_FALLIBLE,
+};
+
+union type_desc {
+	struct cer_int *i;
+	struct cer_float *f;
+	struct cer_array *array;
+	struct cer_slice *slice;
+	struct cer_struct *s;
+	struct cer_enum *en;
+	struct cer_union *un;
+};
+
+struct type {
+	enum type_kind kind;
+	union type_desc desc;
+};
+
+#endif