cli: Rename src/pipac.c to src/main.c

I found easier to understand the application entrypoint by calling it
main.c.

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>

1 files changed, 82 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..e3caec1
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2023 Johnny Richard
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ast.h"
+#include "gas_assembly_generator.h"
+#include "lexer.h"
+#include "parser.h"
+#include "scope.h"
+#include "string_view.h"
+
+static void
+generate_gas_x86_64_linux(ast_node_t *func)
+{
+  gas_assembly_generator_t gen;
+  gas_assembly_generator_init(&gen, stdout);
+  gas_assembly_generator_compile(&gen, func);
+}
+
+static void
+print_usage(void)
+{
+  fputs("pipac <filename.pipa>\n", stderr);
+}
+
+static void
+parser_print_errors(parser_t *parser)
+{
+  for (int i = 0; i < parser->errors_len; i++) {
+    parser_error_t error = parser->errors[i];
+
+    fprintf(
+      stderr, "%s:%d:%d: [ERROR]: %s\n", error.token.filepath, error.token.row + 1, error.token.col + 1, error.message);
+  }
+}
+
+int
+main(int argc, char **argv)
+{
+  if (argc < 2) {
+    print_usage();
+    return EXIT_FAILURE;
+  }
+
+  char *filepath = argv[1];
+
+  lexer_t lexer;
+  lexer_init(&lexer, filepath);
+
+  scope_t *scope = scope_new();
+  parser_t parser;
+  parser_init(&parser, &lexer, scope);
+
+  ast_node_t *func = parser_parse_function_declaration(&parser);
+
+  if (func == NULL) {
+    parser_print_errors(&parser);
+    return EXIT_FAILURE;
+  }
+
+  generate_gas_x86_64_linux(func);
+
+  scope_destroy(scope);
+  ast_node_destroy(func);
+  return EXIT_SUCCESS;
+}