From e478fe30a110cbd2ba8bd48b2642c5206364bf2c Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Tue, 11 Jun 2024 17:52:59 +0200
Subject: Switch size_t indicies to be idx_t_

---
 src/codegen.c |  3 +--
 src/parser.c  | 46 +++++++++++++++-------------------------------
 src/parser.h  |  8 +++++---
 src/types.h   |  2 ++
 4 files changed, 23 insertions(+), 36 deletions(-)

diff --git a/src/codegen.c b/src/codegen.c
index 4f10e61..d0f90bb 100644
--- a/src/codegen.c
+++ b/src/codegen.c
@@ -8,8 +8,7 @@
 #include "alloc.h"
 #include "codegen.h"
 #include "errors.h"
-
-#define AST_EMPTY ((size_t)-1)
+#include "parser.h"
 
 static size_t codegenstmt(LLVMBuilderRef, struct ast_soa, struct lexemes_soa,
                           size_t);
diff --git a/src/parser.c b/src/parser.c
index 3ba9c79..39f38a6 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -12,10 +12,9 @@
 
 /* #define AST_DFLT_CAP (2048) */
 #define AST_DFLT_CAP (8)
-#define AST_EMPTY    ((size_t)-1)
 #define SIZE_WDTH    (sizeof(size_t) * CHAR_BIT)
 
-typedef size_t parsefn(struct ast_soa *, struct lexemes_soa);
+typedef idx_t_ parsefn(struct ast_soa *, struct lexemes_soa);
 static parsefn parseblk,
                parsedecl,
                parseexpr,
@@ -23,11 +22,10 @@ static parsefn parseblk,
                parsestmt,
                parsetype;
 
+static idx_t_ ast_alloc(struct ast_soa *);
 static struct ast_soa mk_ast_soa(void);
 static void ast_soa_resz(struct ast_soa *);
 
-static size_t ast_alloc(struct ast_soa *);
-
 static size_t toksidx;
 
 struct ast_soa
@@ -44,10 +42,10 @@ parsetoks(struct lexemes_soa toks)
 	return ast;
 }
 
-size_t
+idx_t_
 parseblk(struct ast_soa *ast, struct lexemes_soa toks)
 {
-	size_t i = ast_alloc(ast);
+	idx_t_ i = ast_alloc(ast);
 	ast->lexemes[i] = toksidx;
 	ast->kinds[i] = ASTBLK;
 	ast->kids[i].lhs = ast->kids[i].rhs = AST_EMPTY;
@@ -65,10 +63,10 @@ parseblk(struct ast_soa *ast, struct lexemes_soa toks)
 	return i;
 }
 
-size_t
+idx_t_
 parsedecl(struct ast_soa *ast, struct lexemes_soa toks)
 {
-	size_t i = ast_alloc(ast);
+	idx_t_ i = ast_alloc(ast);
 	ast->lexemes[i] = toksidx;
 
 	if (toks.kinds[toksidx++] != LEXIDENT)
@@ -104,10 +102,10 @@ parsedecl(struct ast_soa *ast, struct lexemes_soa toks)
 	return i;
 }
 
-size_t
+idx_t_
 parseexpr(struct ast_soa *ast, struct lexemes_soa toks)
 {
-	size_t i = ast_alloc(ast);
+	idx_t_ i = ast_alloc(ast);
 	ast->lexemes[i] = toksidx;
 
 	switch (toks.kinds[toksidx]) {
@@ -127,10 +125,10 @@ parseexpr(struct ast_soa *ast, struct lexemes_soa toks)
 	return i;
 }
 
-size_t
+idx_t_
 parseproto(struct ast_soa *ast, struct lexemes_soa toks)
 {
-	size_t i = ast_alloc(ast);
+	idx_t_ i = ast_alloc(ast);
 	ast->lexemes[i] = toksidx;
 	ast->kinds[i] = ASTFNPROTO;
 	ast->kids[i].lhs = AST_EMPTY;
@@ -146,10 +144,10 @@ parseproto(struct ast_soa *ast, struct lexemes_soa toks)
 	return i;
 }
 
-size_t
+idx_t_
 parsestmt(struct ast_soa *ast, struct lexemes_soa toks)
 {
-	size_t i;
+	idx_t_ i;
 
 	if (toks.kinds[toksidx] != LEXIDENT)
 		err("parser: Expected identifier");
@@ -173,10 +171,10 @@ parsestmt(struct ast_soa *ast, struct lexemes_soa toks)
 	return i;
 }
 
-size_t
+idx_t_
 parsetype(struct ast_soa *ast, struct lexemes_soa toks)
 {
-	size_t i = ast_alloc(ast);
+	idx_t_ i = ast_alloc(ast);
 	ast->kinds[i] = ASTTYPE;
 	ast->lexemes[i] = toksidx;
 
@@ -254,24 +252,10 @@ ast_soa_resz(struct ast_soa *soa)
 	soa->cap = ncap;
 }
 
-size_t
+idx_t_
 ast_alloc(struct ast_soa *soa)
 {
 	if (soa->len == soa->cap)
 		ast_soa_resz(soa);
 	return soa->len++;
 }
-
-/* size_t */
-/* ast_soa_push(struct ast_soa *soa, ast_kind kind, size_t lexeme, size_t lhs, */
-/*              size_t rhs) */
-/* { */
-/* 	if (soa->len == soa->cap) */
-/* 		ast_soa_resz(soa); */
-/**/
-/* 	soa->kinds[soa->len] = kind; */
-/* 	soa->lexemes[soa->len] = lexeme; */
-/* 	soa->kids[soa->len].lhs = lhs; */
-/* 	soa->kids[soa->len].rhs = rhs; */
-/* 	return soa->len++; */
-/* } */
diff --git a/src/parser.h b/src/parser.h
index 62f557b..5398162 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -6,6 +6,7 @@
 #include <stdint.h>
 
 #include "lexer.h"
+#include "types.h"
 
 enum {
 	/* Variable declaration, lhs and rhs may be unused
@@ -47,13 +48,14 @@ enum {
 
 typedef uint8_t ast_kind;
 
-#define AST_SOA_BLKSZ (sizeof(ast_kind) + sizeof(size_t) * 4)
+#define AST_EMPTY     ((idx_t_)-1)
+#define AST_SOA_BLKSZ (sizeof(ast_kind) + sizeof(idx_t_) * 3)
 
 struct ast_soa {
 	ast_kind *kinds;
-	size_t *lexemes;
+	idx_t_ *lexemes;
 	struct {
-		size_t lhs, rhs;
+		idx_t_ lhs, rhs;
 	} *kids;
 	size_t len, cap;
 };
diff --git a/src/types.h b/src/types.h
index c784b26..34441b5 100644
--- a/src/types.h
+++ b/src/types.h
@@ -2,8 +2,10 @@
 #define ORYX_TYPES_H
 
 #include <stddef.h>
+#include <stdint.h>
 
 typedef unsigned char uchar;
+typedef uint32_t      idx_t_;
 
 struct strview {
 	const uchar *p;
-- 
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