1 files changed, 57 insertions, 0 deletions
diff --git a/vendor/windows-metadata/src/file/table.rs b/vendor/windows-metadata/src/file/table.rs
new file mode 100644
index 000000000..af9599c31
--- /dev/null
+++ b/vendor/windows-metadata/src/file/table.rs
@@ -0,0 +1,57 @@
+#[derive(Default)]
+pub struct Table {
+    pub offset: usize,
+    pub len: usize,
+    pub width: usize,
+    pub columns: [Column; 6],
+}
+
+#[derive(Default)]
+pub struct Column {
+    pub offset: usize,
+    pub width: usize,
+}
+
+impl Table {
+    pub fn index_width(&self) -> usize {
+        if self.len < (1 << 16) {
+            2
+        } else {
+            4
+        }
+    }
+
+    pub fn set_columns(&mut self, a: usize, b: usize, c: usize, d: usize, e: usize, f: usize) {
+        self.width = a + b + c + d + e + f;
+        self.columns[0] = Column::new(0, a);
+        if b != 0 {
+            self.columns[1] = Column::new(a, b);
+        }
+        if c != 0 {
+            self.columns[2] = Column::new(a + b, c);
+        }
+        if d != 0 {
+            self.columns[3] = Column::new(a + b + c, d);
+        }
+        if e != 0 {
+            self.columns[4] = Column::new(a + b + c + d, e);
+        }
+        if f != 0 {
+            self.columns[5] = Column::new(a + b + c + d + e, f);
+        }
+    }
+
+    pub fn set_data(&mut self, offset: &mut usize) {
+        if self.len != 0 {
+            let next = *offset + self.len * self.width;
+            self.offset = *offset;
+            *offset = next;
+        }
+    }
+}
+
+impl Column {
+    fn new(offset: usize, width: usize) -> Self {
+        Self { offset, width }
+    }
+}