Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/third_party/rust/jsparagus-stencil/src/env_coord.rs b/third_party/rust/jsparagus-stencil/src/env_coord.rs
new file mode 100644
index 0000000000..257afbeb39
--- /dev/null
+++ b/third_party/rust/jsparagus-stencil/src/env_coord.rs
@@ -0,0 +1,50 @@
+//! (EnvironmentSlot,EnvironmentHops) pair represent the reference to a slot in
+//! an environment object in the environment chain.
+//!
+//! See the SMDOC comment in m-c/js/src/vm/EnvironmentObject.h for the details
+//! about environment object and environment chain.
+
+/// Slot in the environmentslot object.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Ord, PartialOrd)]
+pub struct EnvironmentSlot {
+    slot: u32,
+}
+
+impl EnvironmentSlot {
+    pub fn new(slot: u32) -> Self {
+        Self { slot }
+    }
+
+    pub fn next(&mut self) {
+        self.slot += 1;
+    }
+}
+
+impl From<EnvironmentSlot> for u32 {
+    fn from(slot: EnvironmentSlot) -> u32 {
+        slot.slot
+    }
+}
+
+/// The number of environment objects to skip (hop) on the environment chain in
+/// order to find the associated environment object.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Ord, PartialOrd)]
+pub struct EnvironmentHops {
+    hops: u8,
+}
+
+impl EnvironmentHops {
+    pub fn new(hops: u8) -> Self {
+        Self { hops }
+    }
+
+    pub fn next(&mut self) {
+        self.hops += 1;
+    }
+}
+
+impl From<EnvironmentHops> for u8 {
+    fn from(hops: EnvironmentHops) -> u8 {
+        hops.hops
+    }
+}