From 0c953e1681cffd46ee286bb8d4f412537c573084 Mon Sep 17 00:00:00 2001
From: Austin Abell <austinabell8@gmail.com>
Date: Thu, 5 Aug 2021 16:05:07 -0400
Subject: [PATCH] fix(env): Update method name parameters in env to string
 equivalents (#515)

---
 CHANGELOG.md                                  |   5 ++++-
 HELP.md                                       |   4 ++--
 .../res/cross_contract_high_level.wasm        | Bin 266537 -> 266553 bytes
 examples/fungible-token/res/defi.wasm         | Bin 120433 -> 120396 bytes
 .../fungible-token/res/fungible_token.wasm    | Bin 204285 -> 204285 bytes
 examples/lockable-fungible-token/src/lib.rs   |   1 -
 .../res/approval_receiver.wasm                | Bin 117856 -> 117819 bytes
 .../res/non_fungible_token.wasm               | Bin 297058 -> 297058 bytes
 .../res/token_receiver.wasm                   | Bin 117101 -> 117064 bytes
 .../status-message-collections/src/lib.rs     |   1 -
 .../code_generator/item_trait_info.rs         |   6 +++---
 .../code_generator/trait_item_method_info.rs  |   2 +-
 .../info_extractor/trait_item_method_info.rs  |   9 ++++-----
 near-sdk/src/environment/env.rs               |   4 ++--
 near-sdk/src/promise.rs                       |  12 ++++++------
 15 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e098b796..b2bfd4a74 100644
--- a/CHANGELOG.md
+++ b/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).
diff --git a/HELP.md b/HELP.md
index d6e370599..90e0a6495 100644
--- a/HELP.md
+++ b/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,
             )
diff --git a/examples/cross-contract-high-level/res/cross_contract_high_level.wasm b/examples/cross-contract-high-level/res/cross_contract_high_level.wasm
index 564ca464c27e2337be5e288a22385c5b731ed536..9ec4ab7a1fef370eb9112f4f11125af6a2e36f59 100755
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QvuZa3{u8ZsGff%(e@0vPjQ{`u

diff --git a/examples/fungible-token/res/defi.wasm b/examples/fungible-token/res/defi.wasm
index f7e26fa888550acbb245f7066d493f894be0cb1d..796a0c92b82699986acd23e2d0244649cda7f2e7 100755
GIT binary patch
delta 78
zcmV-U0I~n^tOv}j2e2Us2IheV!2~vw!K)jyLI^=R0m+kuLeUdJ05$?ZAO=DKHv>2z
k1|R}90z{K&LxT;Vh`@jVK@1Syf`EVkgB?V-9Yg_Ck|BT@G5`Po

delta 115
zcmX@JhW+Cj_6>?0Y~4+42U*M}f6S2H?8M<{#rSS=i_=A6Cq{E-3k5a>CNm}%1vW<p
zGbV@08P3f{JOY~<8X6cB*ff|llo%ZuG#M6j9B5!LXJAlZbmYi#WYAz(0TM6+3a~ly
Rm@yeN|8U;^!<jK;5&*n9AWi@P

diff --git a/examples/fungible-token/res/fungible_token.wasm b/examples/fungible-token/res/fungible_token.wasm
index 3591d1c078af855912e520e4b0bd31b97390dad7..0019ae9d109a34338c7c9d75ccdda7f5386a62f6 100755
GIT binary patch
delta 38
scmeyno9FLto`x-qlOmX2woEsVV)WhqFoH3J5y)!?^0u2tF&#S$08v^HE&u=k

delta 38
scmeyno9FLto`x-qlOmYDG)*^;V)WhqFoH3J5y)!?^0u2tF&#S$08+FNKmY&$

diff --git a/examples/lockable-fungible-token/src/lib.rs b/examples/lockable-fungible-token/src/lib.rs
index 37cbe71fc..fdced9931 100644
--- a/examples/lockable-fungible-token/src/lib.rs
+++ b/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::*;
diff --git a/examples/non-fungible-token/res/approval_receiver.wasm b/examples/non-fungible-token/res/approval_receiver.wasm
index cb9c2aa1e04b38a78e14a4ba944abf76b2a3e5f8..51b2e47f70b6d321927b8555c30634a6dc787190 100755
GIT binary patch
delta 77
zcmV-T0J8t!m<PL<2e9@B1^n>^wFHxH3MR852v|S?$&-3W(Gx)cHUdB(20{Th12`ZC
jAObc5M3Y`ggAKHZz<>Zj1rXYTfPesl6H2!eN&!uR7{nO!

delta 118
zcmdlzgZ;q__6^_ISr>j{-O4igV2#A&HZH!+iX0IRjPE8_d0Z5BVl-#AP+(JFGGlU4
zU~^<JV{(`r=h<w;DzL4gp@BhxO@m28iP4ckgJDa@fd&RM1_lL2N0ux{23>|7AOS0&
U0GlJL8IwWtJJ0R!JQ;nP0F{p-9smFU

diff --git a/examples/non-fungible-token/res/non_fungible_token.wasm b/examples/non-fungible-token/res/non_fungible_token.wasm
index 7cbdbc01e50e718f32fdcd564e15e60a1c6b43bb..870a98cffe866bad747b62ddb8eae3949e82f953 100755
GIT binary patch
delta 49
zcmaDfLFmy0p@tU5ElgSsOyAnK>ohP;l>#!R0~xN{Ic75*V+8WrFU(=ueqj#tq}Kod
C+7(0q

delta 49
zcmaDfLFmy0p@tU5ElgSsOh;O_>ohP;l>#!R0~xN{Ic75*V+8WrFU(=ueqj#tq}KrP
Cw-luS

diff --git a/examples/non-fungible-token/res/token_receiver.wasm b/examples/non-fungible-token/res/token_receiver.wasm
index b9637040ab45e2f92864754a6bf869cc10ddfb98..be78f7ebe49855a0314fb9fe4c2d1c8cda186d96 100755
GIT binary patch
delta 69
zcmV-L0J{I}k_X6=2e9i00o1eX2XQ?CtCL<uyAweGHUdB(20{Th12`ZCAObc5M3XE=
bh7FL2z<>Zj1rXALfPesl<VLsTMgfU}P?8t#

delta 106
zcmX>xiT&*)_6@Ju8Gmkm!(M31cwus!>uzBuMssEh1vUjHGbR@WHb(|CCWpy7Zf!=a
z0-G8d8W<GVG?+A$m>d~27$$TaXkaj7U{GLkWXW=5&}Enc60iaausO1tF&Q-PciX<-
Ijj^){0IPQ$l>h($

diff --git a/examples/status-message-collections/src/lib.rs b/examples/status-message-collections/src/lib.rs
index 436d94f35..8d4dd017d 100644
--- a/examples/status-message-collections/src/lib.rs
+++ b/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;
 
diff --git a/near-sdk-macros/src/core_impl/code_generator/item_trait_info.rs b/near-sdk-macros/src/core_impl/code_generator/item_trait_info.rs
index a55976c82..731d11376 100644
--- a/near-sdk-macros/src/core_impl/code_generator/item_trait_info.rs
+++ b/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,
diff --git a/near-sdk-macros/src/core_impl/code_generator/trait_item_method_info.rs b/near-sdk-macros/src/core_impl/code_generator/trait_item_method_info.rs
index 1cc0c533d..8e9e0339b 100644
--- a/near-sdk-macros/src/core_impl/code_generator/trait_item_method_info.rs
+++ b/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,
diff --git a/near-sdk-macros/src/core_impl/info_extractor/trait_item_method_info.rs b/near-sdk-macros/src/core_impl/info_extractor/trait_item_method_info.rs
index 92c9d7a76..b1c95fdd2 100644
--- a/near-sdk-macros/src/core_impl/info_extractor/trait_item_method_info.rs
+++ b/near-sdk-macros/src/core_impl/info_extractor/trait_item_method_info.rs
@@ -1,7 +1,7 @@
 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 {
@@ -9,8 +9,8 @@ pub struct TraitItemMethodInfo {
     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 })
     }
diff --git a/near-sdk/src/environment/env.rs b/near-sdk/src/environment/env.rs
index 55c926cbf..79f4379ed 100644
--- a/near-sdk/src/environment/env.rs
+++ b/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 {
diff --git a/near-sdk/src/promise.rs b/near-sdk/src/promise.rs
index 804e44222..3197ce02e 100644
--- a/near-sdk/src/promise.rs
+++ b/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 {