Added AST functions, tested eval with basic input

1 files changed, 42 insertions, 0 deletions

diff --git a/src/ast.c b/src/ast.c
new file mode 100644
index 0000000..7c3fb8f
--- /dev/null
+++ b/src/ast.c
@@ -0,0 +1,42 @@
+#include "ast.h"
+
+t_ast			*ast_new(t_ast_tag tag, void *data)
+{
+	t_ast	*ast;
+
+	if (data == NULL)
+		return (NULL);
+	if ((ast = (t_ast*)malloc(sizeof(t_ast))) == NULL)
+		return (NULL);
+	ft_bzero(ast, sizeof(t_ast));
+	ast->tag = tag;
+	if (tag == TAG_CMD)
+		ft_memcpy(&ast->data.cmd, (t_cmd*)data, sizeof(t_cmd));
+	else if (tag == TAG_LINE)
+		ft_memcpy(&ast->data.line, (t_line*)data, sizeof(t_line));
+	return (ast);
+}
+
+static void		cmd_destroy(t_cmd *cmd)
+{
+	ft_split_destroy(cmd->argv);
+	free(cmd->in);
+	free(cmd->out);
+}
+
+static void		line_destroy(t_line *line)
+{
+	ast_destroy(line->left);
+	ast_destroy(line->right);
+}
+
+void			ast_destroy(t_ast *ast)
+{
+	if (ast == NULL)
+		return ;
+	if (ast->tag == TAG_CMD)
+		cmd_destroy(&ast->data.cmd);
+	else if (ast->tag == TAG_LINE)
+		line_destroy(&ast->data.line);
+	free(ast);
+}