1 files changed, 44 insertions, 0 deletions
diff --git a/vendor/minifier/src/json/read/internal_buffer.rs b/vendor/minifier/src/json/read/internal_buffer.rs
new file mode 100644
index 000000000..90eebcd73
--- /dev/null
+++ b/vendor/minifier/src/json/read/internal_buffer.rs
@@ -0,0 +1,44 @@
+// Take a look at the license at the top of the repository in the LICENSE file.
+
+const ARRAY_DEFAULT: u8 = 0;
+
+#[derive(Debug)]
+pub struct Buffer {
+    buffer: Vec<u8>,
+    read_pos: usize,
+    buffer_size: usize,
+    data_size: usize,
+}
+
+impl Buffer {
+    pub fn new(size: usize) -> Buffer {
+        Buffer {
+            buffer: vec![ARRAY_DEFAULT; size],
+            read_pos: 0,
+            buffer_size: size,
+            data_size: 0,
+        }
+    }
+
+    pub fn as_mut(&mut self) -> &mut [u8] {
+        self.buffer.as_mut()
+    }
+
+    pub fn update_metadata(&mut self, size: usize) {
+        self.read_pos = 0;
+        self.data_size = size;
+    }
+
+    pub fn next(&mut self) -> Option<u8> {
+        if self.read_pos >= self.data_size {
+            return None;
+        }
+        let item = self.buffer.get(self.read_pos);
+        self.read_pos += 1;
+        item.copied()
+    }
+
+    pub fn cont(&self) -> bool {
+        self.data_size == self.buffer_size
+    }
+}