1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/httparse/src/macros.rs b/vendor/httparse/src/macros.rs
new file mode 100644
index 00000000..751f60b3
--- /dev/null
+++ b/vendor/httparse/src/macros.rs
@@ -0,0 +1,68 @@
+//! Utility macros
+
+macro_rules! next {
+    ($bytes:ident) => ({
+        match $bytes.next() {
+            Some(b) => b,
+            None => return Ok(Status::Partial)
+        }
+    })
+}
+
+macro_rules! expect {
+    ($bytes:ident.next() == $pat:pat => $ret:expr) => {
+        expect!(next!($bytes) => $pat |? $ret)
+    };
+    ($e:expr => $pat:pat |? $ret:expr) => {
+        match $e {
+            v@$pat => v,
+            _ => return $ret
+        }
+    };
+}
+
+macro_rules! complete {
+    ($e:expr) => {
+        match $e? {
+            Status::Complete(v) => v,
+            Status::Partial => return Ok(Status::Partial)
+        }
+    }
+}
+
+macro_rules! byte_map {
+    ($($p:pat)|+) => {{
+        const fn make_map() -> [bool; 256] {
+            let mut ret = [false; 256];
+            let mut i = 0;
+            while i < 256 {
+                ret[i] = matches!(i as u8, $($p)|+);
+                i += 1;
+            }
+            ret
+        }
+        make_map()
+    }}
+}
+
+macro_rules! space {
+    ($bytes:ident or $err:expr) => ({
+        expect!($bytes.next() == b' ' => Err($err));
+        $bytes.slice();
+    })
+}
+
+macro_rules! newline {
+    ($bytes:ident) => ({
+        match next!($bytes) {
+            b'\r' => {
+                expect!($bytes.next() == b'\n' => Err(Error::NewLine));
+                $bytes.slice();
+            },
+            b'\n' => {
+                $bytes.slice();
+            },
+            _ => return Err(Error::NewLine)
+        }
+    })
+}