From 16595bfc1e84f9df63d762b09118fdf18eb24038 Mon Sep 17 00:00:00 2001
From: Mark Rowe <mark@vector35.com>
Date: Mon, 29 Sep 2025 13:42:35 -0700
Subject: [Rust] Add support for activity eligibility predicates involving
 platforms

---
 rust/src/workflow/activity.rs | 47 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

(limited to 'rust/src/workflow')

diff --git a/rust/src/workflow/activity.rs b/rust/src/workflow/activity.rs
index a893e798..a9afc2f1 100644
--- a/rust/src/workflow/activity.rs
+++ b/rust/src/workflow/activity.rs
@@ -453,6 +453,52 @@ impl From<ViewType> for Predicate {
     }
 }
 
+/// A predicate that checks the platform of the [`BinaryView`](crate::binary_view::BinaryView).
+#[must_use]
+pub enum Platform {
+    In(Vec<String>),
+    NotIn(Vec<String>),
+}
+
+impl Platform {
+    /// Creates a new predicate that checks if the platform of the [`BinaryView`](crate::binary_view::BinaryView)
+    /// _is_ in the provided list.
+    pub fn in_<I, S>(values: I) -> Self
+    where
+        I: IntoIterator<Item = S>,
+        S: AsRef<str>,
+    {
+        Platform::In(values.into_iter().map(|s| s.as_ref().to_string()).collect())
+    }
+
+    /// Creates a new predicate that checks if the platform of the [`BinaryView`](crate::binary_view::BinaryView)
+    /// _is not_ in the provided list.
+    pub fn not_in<I, S>(values: I) -> Self
+    where
+        I: IntoIterator<Item = S>,
+        S: AsRef<str>,
+    {
+        Platform::NotIn(values.into_iter().map(|s| s.as_ref().to_string()).collect())
+    }
+}
+
+impl From<Platform> for Predicate {
+    fn from(predicate: Platform) -> Self {
+        match predicate {
+            Platform::In(value) => Predicate {
+                predicate_type: PredicateType::Platform,
+                operator: Operator::In,
+                value: serde_json::json!(value),
+            },
+            Platform::NotIn(value) => Predicate {
+                predicate_type: PredicateType::Platform,
+                operator: Operator::NotIn,
+                value: serde_json::json!(value),
+            },
+        }
+    }
+}
+
 /// A predicate that evaluates the value of a specific setting.
 #[must_use]
 pub struct Setting {
@@ -533,6 +579,7 @@ impl From<Setting> for Predicate {
 enum PredicateType {
     Setting { identifier: String },
     ViewType,
+    Platform,
 }
 
 #[derive(Deserialize, Serialize, Debug, Copy, Clone)]
-- 
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