raising the head after a three-weeks refactoring

[m6w6/ext-psi] / src / types / layout.c

diff --git a/src/types/layout.c b/src/types/layout.c
new file mode 100644 (file)
index 0000000..3c8deaa
--- /dev/null
+++ b/src/types/layout.c
@@ -0,0 +1,69 @@
+/*******************************************************************************
+ Copyright (c) 2016, Michael Wallner <mike@php.net>.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************/
+
+#include "php_psi_stdinc.h"
+#include "data.h"
+
+#include <assert.h>
+
+struct psi_layout *psi_layout_init(size_t pos, size_t len)
+{
+       struct psi_layout *l = calloc(1, sizeof(*l));
+
+       assert(pos + len);
+
+       l->pos = pos;
+       l->len = len;
+
+       return l;
+}
+
+void psi_layout_free(struct psi_layout **l_ptr)
+{
+       if (*l_ptr) {
+               free(*l_ptr);
+               *l_ptr = NULL;
+       }
+}
+
+int psi_layout_sort_cmp(const void *_a, const void *_b)
+{
+       struct psi_decl_arg *a = *(struct psi_decl_arg **) _a;
+       struct psi_decl_arg *b = *(struct psi_decl_arg **) _b;
+
+       if (a->layout->pos == b->layout->pos) {
+               if (a->layout->len == b->layout->len) {
+                       return 0;
+               } else if (a->layout->len > b->layout->len) {
+                       return -1;
+               } else {
+                       return 1;
+               }
+       } else if (a->layout->pos > b->layout->pos) {
+               return 1;
+       } else {
+               return -1;
+       }
+}