Support reconstituting pageables (#2748)

* Support reconstituting pageables

Adds PageIterator::with_next_link to support general guidelines: https://azure.github.io/azure-sdk/general_design.html#general-pagination-expose-paging-apis

* Fix lint

* Use `continuation_token` instead of `next` for cross-language consistency

Author: heaths

eng/scripts/verify-dependencies.rs

@@ -20,9 +20,9 @@ use std::{
 static EXEMPTIONS: &[(&str, &str)] = &[
     ("azure_core_test", "dotenvy"),
     ("azure_template", "serde"),
-    ("azure_core_tracing_opentelemetry", "opentelemetry"),
-    ("azure_core_tracing_opentelemetry", "opentelemetry_sdk"),
-    ("azure_core_tracing_opentelemetry", "tracing-opentelemetry"),
+    ("azure_core_opentelemetry", "opentelemetry"),
+    ("azure_core_opentelemetry", "opentelemetry_sdk"),
+    ("azure_core_opentelemetry", "tracing-opentelemetry"),
 ];
 
 fn main() {

sdk/core/azure_core/CHANGELOG.md

@@ -5,13 +5,15 @@
 ### Features Added
 
 - Added `get_async_runtime()` and `set_async_runtime()` to allow customers to replace the asynchronous runtime used by the Azure SDK.
+- Added `PageIterator::continuation_token()` and `PageIterator::with_continuation_token()` to support reconstructing a `PageIterator` in another process or on another machine to continue paging.
 
 ### Breaking Changes
 
 - `azure_core::http::Pipeline::new` now takes an `azure_core::http::ClientOptions` which is defined in `azure_core`, but convertible to `typespec_client_core::http::ClientOptions`.
 - Moved `process::Executor` to `azure_identity`.
 - Removed `Pipeline::replace_policy`.
 - Renamed `azure_core::date` to `azure_core::time` and added `azure_core::time::Duration` as the standard "duration" type for the SDK.
+- Renamed `PagerResult::More { next }` to `continuation`.
 - Renamed `TelemetryOptions` to `UserAgentOptions`.
 - Renamed `TelemetryPolicy` to `UserAgentPolicy`.
 

sdk/core/azure_core/src/http/pager.rs

@@ -70,7 +70,7 @@ impl<T> From<FeedPage<T>> for PagerResult<FeedPage<T>, String> {
         match continuation {
             Some(continuation) => PagerResult::More {
                 response: value,
-                next: continuation,
+                continuation,
             },
             None => PagerResult::Done { response: value },
         }