Rename builtins/ -> stdlib/

1 files changed, 66 insertions, 0 deletions

diff --git a/stdlib/util.h b/stdlib/util.h
new file mode 100644
index 00000000..a24264cd
--- /dev/null
+++ b/stdlib/util.h
@@ -0,0 +1,66 @@
+#pragma once
+
+// Built-in utility functions
+
+#include <assert.h>
+#include <gc.h>
+#include <stdbool.h>
+#include <string.h>
+#include <err.h>
+
+#define streq(a, b) (((a) == NULL && (b) == NULL) || (((a) == NULL) == ((b) == NULL) && strcmp(a, b) == 0))
+#define starts_with(line, prefix) (strncmp(line, prefix, strlen(prefix)) == 0)
+#define ends_with(line, suffix) (strlen(line) >= strlen(suffix) && strcmp(line + strlen(line) - strlen(suffix), suffix) == 0)
+#define new(t, ...) ((t*)memcpy(GC_MALLOC(sizeof(t)), &(t){__VA_ARGS__}, sizeof(t)))
+#define heap(x) (__typeof(x)*)memcpy(GC_MALLOC(sizeof(x)), (__typeof(x)[1]){x}, sizeof(x))
+#define stack(x) (__typeof(x)*)((__typeof(x)[1]){x})
+#define Match(x, _tag) ((x)->tag == _tag ? &(x)->__data._tag : (errx(1, __FILE__ ":%d This was supposed to be a " # _tag "\n", __LINE__), &(x)->__data._tag))
+#define check_initialized(var, name) *({ if (!var ## $initialized) fail("The variable " name " is being accessed before it has been initialized!"); \
+                                       &var; })
+
+#ifndef auto
+#define auto __auto_type
+#endif
+
+#ifndef public
+#define public __attribute__ ((visibility ("default")))
+#endif
+
+#ifndef PUREFUNC
+#define PUREFUNC __attribute__ ((pure))
+#endif
+
+#ifndef CONSTFUNC
+#define CONSTFUNC __attribute__ ((const))
+#endif
+
+extern bool USE_COLOR;
+
+#define REVERSE_LIST(list) do { \
+    __typeof(list) _prev = NULL; \
+    __typeof(list) _next = NULL; \
+    auto _current = list; \
+    while (_current != NULL) { \
+        _next = _current->next; \
+        _current->next = _prev; \
+        _prev = _current; \
+        _current = _next; \
+    } \
+    list = _prev; \
+} while(0)
+
+#define LIST_MAP(src, var, ...) ({\
+    __typeof(src) mapped = NULL; \
+    __typeof(src) *next = &mapped; \
+    for (__typeof(src) var = src; var; var = var->next) { \
+        *next = GC_MALLOC(sizeof(__typeof(*(src)))); \
+        **next = *var; \
+        **next = (__typeof(*(src))){__VA_ARGS__}; \
+        next = &((*next)->next); \
+    } \
+    mapped; })
+
+__attribute__((format(printf, 1, 2)))
+char *heap_strf(const char *fmt, ...);
+
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0