From 1d943da0cf9154e7ce78ce867cdbb91531c5d78e Mon Sep 17 00:00:00 2001
From: Matthew Sotoudeh <matthew@masot.net>
Date: Tue, 25 Jul 2023 14:58:33 -0700
Subject: initial dietc commit

---
 main.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 main.c

(limited to 'main.c')

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..af10c1d
--- /dev/null
+++ b/main.c
@@ -0,0 +1,72 @@
+#include "chibicc.h"
+
+typedef enum {
+  FILE_NONE, FILE_C, FILE_ASM, FILE_OBJ, FILE_AR, FILE_DSO,
+} FileType;
+
+char *base_file;
+
+StringArray include_paths;
+bool opt_fcommon = false;
+bool opt_fpic;
+
+static FILE *open_file(char *path) {
+  if (!path || strcmp(path, "-") == 0)
+    return stdout;
+
+  FILE *out = fopen(path, "w");
+  if (!out)
+    error("cannot open output file: %s: %s", path, strerror(errno));
+  return out;
+}
+
+static Token *must_tokenize_file(char *path) {
+  Token *tok = tokenize_file(path);
+  if (!tok)
+    error("%s: %s", path, strerror(errno));
+  return tok;
+}
+
+static Token *append_tokens(Token *tok1, Token *tok2) {
+  if (!tok1 || tok1->kind == TK_EOF)
+    return tok2;
+
+  Token *t = tok1;
+  while (t->next->kind != TK_EOF)
+    t = t->next;
+  t->next = tok2;
+  return tok1;
+}
+
+static void cc1(char *base_file) {
+  Token *tok = NULL;
+
+  // Tokenize and parse.
+  Token *tok2 = must_tokenize_file(base_file);
+  tok = append_tokens(tok, tok2);
+  tok = preprocess(tok);
+
+  Obj *prog = parse(tok);
+
+  // Open a temporary output buffer.
+  char *buf;
+  size_t buflen;
+  FILE *output_buf = open_memstream(&buf, &buflen);
+
+  // Traverse the AST to emit assembly.
+  typegen(prog, output_buf);
+  codegen(prog, output_buf);
+  fclose(output_buf);
+
+  // Write the asembly text to a file.
+  FILE *out = open_file("/dev/stdout");
+  fwrite(buf, buflen, 1, out);
+  fclose(out);
+}
+
+int main(int argc, char **argv) {
+  assert(argc == 2);
+  base_file = argv[1];
+  cc1(argv[1]);
+  return 0;
+}
-- 
cgit v1.2.3