From 33d1231ead8ffbeb97e6c97b9e9a06ace64abd65 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <jhaberman@gmail.com>
Date: Thu, 6 Sep 2018 13:07:09 -0700
Subject: Added port_def.inc and port_undef.inc.

---
 upb/port_def.inc   | 18 ++++++++++++++++++
 upb/port_undef.inc |  5 +++++
 2 files changed, 23 insertions(+)
 create mode 100644 upb/port_def.inc
 create mode 100644 upb/port_undef.inc

(limited to 'upb')

diff --git a/upb/port_def.inc b/upb/port_def.inc
new file mode 100644
index 0000000..33ff78c
--- /dev/null
+++ b/upb/port_def.inc
@@ -0,0 +1,18 @@
+
+#if UINTPTR_MAX == 0xffffffff
+#define UPB_SIZE(size32, size64) size32
+#else
+#define UPB_SIZE(size32, size64) size64
+#endif
+
+#define UPB_FIELD_AT(msg, fieldtype, offset) \
+  *(fieldtype*)((const char*)(msg) + offset)
+
+#define UPB_READ_ONEOF(msg, fieldtype, offset, case_offset, case_val, default) \
+  UPB_FIELD_AT(msg, int, case_offset) == case_val                              \
+      ? UPB_FIELD_AT(msg, fieldtype, offset)                                   \
+      : default
+
+#define UPB_WRITE_ONEOF(msg, fieldtype, offset, value, case_offset, case_val) \
+  UPB_FIELD_AT(msg, int, case_offset) = case_val;                             \
+  UPB_FIELD_AT(msg, fieldtype, offset) = value;
diff --git a/upb/port_undef.inc b/upb/port_undef.inc
new file mode 100644
index 0000000..7db97ca
--- /dev/null
+++ b/upb/port_undef.inc
@@ -0,0 +1,5 @@
+
+#undef UPB_SIZE
+#undef UPB_FIELD_AT
+#undef UPB_READ_ONEOF
+#undef UPB_WRITE_ONEOF
-- 
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