parser: Get started on type system

Signed-off-by: Quinn Stephens <quinn@osmora.org>

2 files changed, 54 insertions, 0 deletions

diff --git a/include/lexer/token.h b/include/lexer/token.h
index 134582a..ab8231d 100644
--- a/include/lexer/token.h
+++ b/include/lexer/token.h
@@ -39,6 +39,9 @@ enum token_kind {
 
     TOK_IDENTIFIER,
 
+    /*
+     * Do not modify this ordering without updating parser/types.c
+     */
     TOK_VOID,
     TOK_INT
 };
diff --git a/include/parser/types.h b/include/parser/types.h
new file mode 100644
index 0000000..aa4f976
--- /dev/null
+++ b/include/parser/types.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2025 Quinn Stephens and the OSMORA team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PARSER_TYPES_H
+#define _PARSER_TYPES_H
+
+#include "lexer/token.h"
+
+enum type_kind {
+    TYK_UNKNOWN,
+
+    TYK_BUILTIN
+};
+
+struct type {
+    enum type_kind kind;
+
+    const char *name;
+
+    size_t size;
+};
+
+struct type *types_find_builtin(enum token_kind tok_kind);
+
+#endif /* !_PARSER_TYPES_H */