refactor(ast): one file per ast_type -- UNSTABLE

src/utils/ast/ast.h

@@ -1,9 +1,10 @@
 #ifndef AST_H
 #define AST_H
 
-#include <stdbool.h>
-
-#include "../lists/lists.h"
+#include "utils/ast/ast_command.h"
+#include "utils/ast/ast_if.h"
+#include "utils/ast/ast_list.h"
+#include "utils/ast/ast_void.h"
 
 enum ast_type
 {
@@ -13,18 +14,6 @@ enum ast_type
     AST_CMD
 };
 
-struct ast_cmd
-{
-    struct list *cmd; // A list of words (char*)
-};
-
-struct ast_if
-{
-    struct ast *condition;
-    struct ast *then_clause;
-    struct ast *else_clause;
-};
-
 struct ast
 {
     enum ast_type type;
@@ -38,58 +27,4 @@ struct ast
     void *data;
 };
 
-struct ast_list
-{
-    struct list *children; // A list of ASTs (ast*)
-};
-
-/**
- * Checks if the given AST node is an if statement.
- */
-bool ast_is_if(struct ast *node);
-
-/**
- * Checks if the given AST node is a command.
- */
-bool ast_is_cmd(struct ast *node);
-
-/**
- * Checks if the given AST node is a command.
- */
-bool ast_is_list(struct ast *node);
-
-/**
- * Retrieves the if statement data from the given AST node.
- * Assumes that the node is of type AST_IF.
- */
-struct ast_if *ast_get_if(struct ast *node);
-
-/**
- * Retrieves the command data from the given AST node.
- * Assumes that the node is of type AST_CMD.
- */
-struct ast_cmd *ast_get_cmd(struct ast *node);
-
-/**
- * Retrieves the command data from the given AST node.
- * Assumes that the node is of type AST_LIST.
- */
-struct ast_list *ast_get_list(struct ast *node);
-
-/**
- * Creates a new AST node representing an if statement.
- */
-struct ast *ast_create_if(struct ast *condition, struct ast *then_clause,
-                          struct ast *else_clause);
-
-/**
- * Creates a new AST node representing a command.
- */
-struct ast *ast_create_cmd(struct list *cmd);
-
-/**
- * Creates a new AST node representing a list of ASTs
- */
-struct ast* ast_create_list(struct list* ast_list);
-
 #endif /* ! AST_H */

src/utils/ast/ast_command.h

@@ -0,0 +1,30 @@
+#ifndef AST_COMMAND_H
+#define AST_COMMAND_H
+
+#include <stdbool.h>
+
+#include "../lists/lists.h"
+#include "utils/ast/ast.h"
+
+struct ast_cmd
+{
+    struct list *cmd; // A list of words (char*)
+};
+
+/**
+ * Checks if the given AST node is a command.
+ */
+bool ast_is_cmd(struct ast *node);
+
+/**
+ * Retrieves the command data from the given AST node.
+ * Assumes that the node is of type AST_CMD.
+ */
+struct ast_cmd *ast_get_cmd(struct ast *node);
+
+/**
+ * Creates a new AST node representing a command.
+ */
+struct ast *ast_create_cmd(struct list *cmd);
+
+#endif /* ! AST_COMMAND_H */

src/utils/ast/ast_if.h

@@ -0,0 +1,32 @@
+#ifndef AST_IF_H
+#define AST_IF_H
+
+#include <stdbool.h>
+
+#include "utils/ast/ast.h"
+
+struct ast_if
+{
+    struct ast *condition;
+    struct ast *then_clause;
+    struct ast *else_clause;
+};
+
+/**
+ * Checks if the given AST node is an if statement.
+ */
+bool ast_is_if(struct ast *node);
+
+/**
+ * Retrieves the if statement data from the given AST node.
+ * Assumes that the node is of type AST_IF.
+ */
+struct ast_if *ast_get_if(struct ast *node);
+
+/**
+ * Creates a new AST node representing an if statement.
+ */
+struct ast *ast_create_if(struct ast *condition, struct ast *then_clause,
+                          struct ast *else_clause);
+
+#endif /* ! AST_IF_H */

src/utils/ast/ast_list.h

@@ -0,0 +1,29 @@
+#ifndef AST_LIST_H
+#define AST_LIST_H
+
+#include <stdbool.h>
+
+#include "utils/ast/ast.h"
+
+/**
+ * Creates a new AST node representing a list of ASTs
+ */
+struct ast *ast_create_list(struct list *ast_list);
+
+/**
+ * Retrieves the command data from the given AST node.
+ * Assumes that the node is of type AST_LIST.
+ */
+struct ast_list *ast_get_list(struct ast *node);
+
+/**
+ * Checks if the given AST node is a command.
+ */
+bool ast_is_list(struct ast *node);
+
+struct ast_list
+{
+    struct list *children; // A list of ASTs (ast*)
+};
+
+#endif /* ! AST_LIST_H */

src/utils/ast/ast_void.h

@@ -0,0 +1,25 @@
+#ifndef AST_VOID_H
+#define AST_VOID_H
+
+#include <stdbool.h>
+
+#include "utils/ast/ast.h"
+
+/**
+ * Checks if the given AST node is of type AST_VOID.
+ */
+bool ast_is_void(struct ast *node);
+
+/**
+ * Retrieves the if statement data from the given AST node.
+ * Assumes that the node is of type AST_VOID.
+ */
+struct ast_void *ast_get_void(struct ast *node);
+
+/**
+ * Creates a new AST node representing NOTHING
+ * WARNING: data will be a NULL pointer
+ */
+struct ast *ast_create_void(struct list *ast_list);
+
+#endif /* ! AST_VOID_H */