feat: implement callback_result annotation (#554)

near · Sep 4, 2021 · 072b477 · 072b477
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## [unreleased]
+- Introduce `#[callback_result]` annotation, which acts like `#[callback]` except that it returns `Result<T, PromiseError>` to allow error handling. [PR 554](https://github.com/near/near-sdk-rs/pull/554)
+ - Adds `#[callback_unwrap]` to replace `callback`
 - mock: Update `method_names` field of `AddKeyWithFunctionCall` to a `Vec<String>` from `Vec<Vec<u8>>`. [PR 555](https://github.com/near/near-sdk-rs/pull/555)
  - Method names were changed to be strings in `4.0.0-pre.2` but this one was missed
 - env: Update the register used for temporary `env` methods to `u64::MAX - 2` from `0`. [PR 557](https://github.com/near/near-sdk-rs/pull/489).

diff --git a/examples/callback-results/.cargo/config.toml b/examples/callback-results/.cargo/config.toml
@@ -0,0 +1,2 @@
+[target.wasm32-unknown-unknown]
+rustflags = ["-C", "link-arg=-s"]