fix(env): Update method name parameters in env to string equivalents

CHANGELOG.md

@@ -3,8 +3,11 @@
 ## [unreleased]
 - fix: Public keys can no longer be borsh deserialized from invalid bytes. [PR 502](https://github.com/near/near-sdk-rs/pull/502)
  - Adds `Hash` derive to `PublicKey`
-* Update `panic` and `panic_utf8` syscall signatures to indicate they do not return.
+- Update `panic` and `panic_utf8` syscall signatures to indicate they do not return.
 - Removes `PublicKey` generic on `env` promise batch calls. Functions now just take a reference to the `PublicKey`.
+- Changes method name parameters from bytes (`Vec<u8>` and `&[u8]`) to string equivalents for batch function call promises [PR 515](https://github.com/near/near-sdk-rs/pull/515)
+ - `promise_batch_action_function_call`, `Promise::function_call`, `promise_batch_action_add_key_with_function_call`, `Promise::add_access_key`, and `Promise::add_access_key_with_nonce` are afffected.
+ - Instead of `b"method_name"` just use `"method_name"`, the bytes are enforced to be utf8 in the runtime.
 
 ## `4.0.0-pre.1` [07-23-2021]
 * Implements new `LazyOption` type under `unstable` feature. Similar to `Lazy` but is optional to set a value. [PR 444](https://github.com/near/near-sdk-rs/pull/444).

HELP.md

@@ -457,8 +457,8 @@ mod ext_calculator {
  pub fn mult(a: U64, b: U64, receiver_id: &AccountId, deposit: Balance, gas: Gas) -> Promise {
  Promise::new(receiver_id.clone())
  .function_call(
- b"mult",
- json!({ "a": a, "b": b }).to_string().as_bytes(),
+ "mult".to_string(),
+ json!({ "a": a, "b": b }).to_string().into_bytes(),
  deposit,
  gas,
  )

examples/lockable-fungible-token/src/lib.rs

@@ -256,7 +256,6 @@ impl FunToken {
 #[cfg(test)]
 mod tests {
  use near_sdk::test_utils::test_env::{alice, bob, carol};
- use near_sdk::MockedBlockchain;
  use near_sdk::{testing_env, VMContext};
 
  use super::*;

examples/status-message-collections/src/lib.rs

@@ -43,7 +43,6 @@ impl StatusMessage {
 mod tests {
  use super::*;
  use near_sdk::test_utils::VMContextBuilder;
- use near_sdk::MockedBlockchain;
  use near_sdk::{testing_env, VMContext};
  use std::convert::TryInto;
 

near-sdk-macros/src/core_impl/code_generator/item_trait_info.rs

@@ -70,7 +70,7 @@ mod tests {
  let args = near_sdk::serde_json::to_vec(&args)
  .expect("Failed to serialize the cross contract args using JSON.");
  near_sdk::Promise::new(AccountId::new_unchecked(__account_id.to_string())).function_call(
- b"merge_sort".to_vec(),
+ "merge_sort".to_string(),
  args,
  __balance,
  __gas,
@@ -79,7 +79,7 @@ mod tests {
  pub fn merge<T: ToString>(__account_id: &T, __balance: near_sdk::Balance, __gas: near_sdk::Gas) -> near_sdk::Promise {
  let args = vec![];
  near_sdk::Promise::new(AccountId::new_unchecked(__account_id.to_string())).function_call(
- b"merge".to_vec(),
+ "merge".to_string(),
  args,
  __balance,
  __gas,
@@ -122,7 +122,7 @@ mod tests {
  let args = near_sdk::borsh::BorshSerialize::try_to_vec(&args)
  .expect("Failed to serialize the cross contract args using Borsh.");
  near_sdk::Promise::new(AccountId::new_unchecked(__account_id.to_string())).function_call(
- b"test".to_vec(),
+ "test".to_string(),
  args,
  __balance,
  __gas,

near-sdk-macros/src/core_impl/code_generator/trait_item_method_info.rs

@@ -20,7 +20,7 @@ impl TraitItemMethodInfo {
  #serialize
  near_sdk::Promise::new(AccountId::new_unchecked(__account_id.to_string()))
  .function_call(
- #ident_byte_str.to_vec(),
+ #ident_byte_str.to_string(),
  args,
  __balance,
  __gas,

near-sdk-macros/src/core_impl/info_extractor/trait_item_method_info.rs

@@ -1,16 +1,16 @@
 use super::AttrSigInfo;
 use syn::export::Span;
 use syn::spanned::Spanned;
-use syn::{Error, LitByteStr, TraitItemMethod};
+use syn::{Error, LitStr, TraitItemMethod};
 
 /// Information extracted from trait method.
 pub struct TraitItemMethodInfo {
  /// Attributes and signature information.
  pub attr_sig_info: AttrSigInfo,
  /// The original AST of the trait item method.
  pub original: TraitItemMethod,
- /// Byte representation of method name, e.g. `b"my_method"`.
- pub ident_byte_str: LitByteStr,
+ /// String representation of method name, e.g. `"my_method"`.
+ pub ident_byte_str: LitStr,
 }
 
 impl TraitItemMethodInfo {
@@ -28,8 +28,7 @@ impl TraitItemMethodInfo {
 
  let attr_sig_info = AttrSigInfo::new(attrs, sig)?;
 
- let ident_byte_str =
- LitByteStr::new(attr_sig_info.ident.to_string().as_bytes(), Span::call_site());
+ let ident_byte_str = LitStr::new(&attr_sig_info.ident.to_string(), Span::call_site());
 
  Ok(Self { attr_sig_info, original: original.clone(), ident_byte_str })
  }

near-sdk/src/environment/env.rs

@@ -318,7 +318,7 @@ pub fn promise_batch_action_deploy_contract(promise_index: u64, code: &[u8]) {
 
 pub fn promise_batch_action_function_call(
  promise_index: PromiseIndex,
- method_name: &[u8],
+ method_name: &str,
  arguments: &[u8],
  amount: Balance,
  gas: Gas,
@@ -374,7 +374,7 @@ pub fn promise_batch_action_add_key_with_function_call(
  nonce: u64,
  allowance: Balance,
  receiver_id: &AccountId,
- method_names: &[u8],
+ method_names: &str,
 ) {
  let receiver_id: &str = receiver_id.as_ref();
  unsafe {

near-sdk/src/promise.rs

@@ -12,7 +12,7 @@ pub enum PromiseAction {
  code: Vec<u8>,
  },
  FunctionCall {
- method_name: Vec<u8>,
+ method_name: String,
  arguments: Vec<u8>,
  amount: Balance,
  gas: Gas,
@@ -32,7 +32,7 @@ pub enum PromiseAction {
  public_key: PublicKey,
  allowance: Balance,
  receiver_id: AccountId,
- method_names: Vec<u8>,
+ method_names: String,
  nonce: u64,
  },
  DeleteKey {
@@ -242,7 +242,7 @@ impl Promise {
  /// A low-level interface for making a function call to the account that this promise acts on.
  pub fn function_call(
  self,
- method_name: Vec<u8>,
+ method_name: String,
  arguments: Vec<u8>,
  amount: Balance,
  gas: Gas,
@@ -272,13 +272,13 @@ impl Promise {
 
  /// Add an access key that is restricted to only calling a smart contract on some account using
  /// only a restricted set of methods. Here `method_names` is a comma separated list of methods,
- /// e.g. `b"method_a,method_b"`.
+ /// e.g. `"method_a,method_b".to_string()`.
  pub fn add_access_key(
  self,
  public_key: PublicKey,
  allowance: Balance,
  receiver_id: AccountId,
- method_names: Vec<u8>,
+ method_names: String,
  ) -> Self {
  self.add_access_key_with_nonce(public_key, allowance, receiver_id, method_names, 0)
  }
@@ -289,7 +289,7 @@ impl Promise {
  public_key: PublicKey,
  allowance: Balance,
  receiver_id: AccountId,
- method_names: Vec<u8>,
+ method_names: String,
  nonce: u64,
  ) -> Self {
  self.add_action(PromiseAction::AddAccessKey {