lang, spl, cli: Refactor to preserve span information (#341)

CHANGELOG.md

@@ -11,22 +11,28 @@ incremented for features.
 
 ## [Unreleased]
 
-## Features
+### Features
 
-* ts: Address metadata is now optional for `anchor.workspace` clients ([#310](https://github.com/project-serum/anchor/pull/310)).
 * cli: Add global options for override Anchor.toml values ([#313](https://github.com/project-serum/anchor/pull/313)).
 * spl: Add `SetAuthority` instruction ([#307](https://github.com/project-serum/anchor/pull/307/files)).
+* lang: `constraint = <expression>` added as a replacement for (the now deprecated) string literal constraints ([#341](https://github.com/project-serum/anchor/pull/341)).
+* lang: Span information is now preserved, providing informative compiler error messages ([#341](https://github.com/project-serum/anchor/pull/341)).
+* ts: Address metadata is now optional for `anchor.workspace` clients ([#310](https://github.com/project-serum/anchor/pull/310)).
 
-## Breaking Changes
+### Breaking Changes
 
 * ts: Retrieving deserialized accounts from the `<program>.account.<my-account>` and `<program>.state` namespaces now require explicitly invoking the `fetch` API. For example, `program.account.myAccount(<adddress>)` and `program.state()` is now `program.account.myAccount.fetch(<address>)` and `program.state.fetch()` ([#322](https://github.com/project-serum/anchor/pull/322)).
-* lang: `#[account(associated)]` now requires `init` to be provided to create an associated account. If not provided, then the address will be assumed to exist, and a constraint will be added to ensure its correctness ([#318](https://github.com/project-serum/anchor/pull/318)).
+* lang: `#[account(associated)]` now requires `init` to be provided to create an associated account. If not provided, then the address will be assumed to exist, and a constraint will be added to ensure the correctness of the address ([#318](https://github.com/project-serum/anchor/pull/318)).
 * lang, ts: Change account discriminator pre-image of the `#[state]` account discriminator to be namespaced by "state:" ([#320](https://github.com/project-serum/anchor/pull/320)).
 * lang, ts: Change domain delimiters for the pre-image of the instruciton sighash to be a single colon `:` to be consistent with accounts ([#321](https://github.com/project-serum/anchor/pull/321)).
+* lang: Associated constraints no longer automatically implement `mut` ([#341](https://github.com/project-serum/anchor/pull/341)).
+* lang: Associated `space` constraints must now be literal integers instead of literal strings ([#341](https://github.com/project-serum/anchor/pull/341)).
+
+### Fixes
 
 ## [0.6.0] - 2021-05-23
 
-## Features
+### Features
 
 * ts: Add `program.simulate` namespace ([#266](https://github.com/project-serum/anchor/pull/266)).
 * ts: Introduce `Address` type, allowing one to use Base 58 encoded strings in public APIs ([#304](https://github.com/project-serum/anchor/pull/304)).
@@ -36,21 +42,21 @@ incremented for features.
 * cli: Add `--skip-build` flag to test command ([301](https://github.com/project-serum/anchor/pull/301)).
 * cli: Add `anchor shell` command to spawn a node shell populated with an Anchor.toml based environment ([#303](https://github.com/project-serum/anchor/pull/303)).
 
-## Breaking Changes
+### Breaking Changes
 
 * cli: The Anchor.toml's `wallet` and `cluster` settings must now be under the `[provider]` table ([#305](https://github.com/project-serum/anchor/pull/305)).
 * ts: Event coder `decode` API changed to decode strings directly instead of buffers ([#292](https://github.com/project-serum/anchor/pull/292)).
 * ts: Event coder `encode` API removed ([#292](https://github.com/project-serum/anchor/pull/292)).
 
 ## [0.5.0] - 2021-05-07
 
-## Features
+### Features
 
 * client: Adds support for state instructions ([#248](https://github.com/project-serum/anchor/pull/248)).
 * lang: Add `anchor-debug` feature flag for logging ([#253](https://github.com/project-serum/anchor/pull/253)).
 * ts: Add support for u16 ([#255](https://github.com/project-serum/anchor/pull/255)).
 
-## Breaking
+### Breaking Changes
 
 * client: Renames `RequestBuilder::new` to `RequestBuilder::from` ([#248](https://github.com/project-serum/anchor/pull/248)).
 * lang: Renames the generated `instruction::state::Ctor` struct to `instruction::state::New` ([#248](https://github.com/project-serum/anchor/pull/248)).
@@ -61,7 +67,7 @@ incremented for features.
 
 ## [0.4.4] - 2021-04-18
 
-## Features
+### Features
 
 * lang: Allows one to specify multiple `with` targets when creating associated acconts ([#197](https://github.com/project-serum/anchor/pull/197)).
 * lang, ts: Add array support ([#202](https://github.com/project-serum/anchor/pull/202)).
@@ -70,19 +76,19 @@ incremented for features.
 
 ## [0.4.3] - 2021-04-13
 
-## Features
+### Features
 
 * lang: CPI clients for program state instructions ([#43](https://github.com/project-serum/anchor/pull/43)).
 * lang: Add `#[account(owner = <program>)]` constraint ([#178](https://github.com/project-serum/anchor/pull/178)).
 * lang, cli, ts: Add `#[account(associated = <target>)]` and `#[associated]` attributes for creating associated program accounts within programs. The TypeScript package can fetch these accounts with a new `<program>.account.<account-name>.associated` (and `associatedAddress`) method ([#186](https://github.com/project-serum/anchor/pull/186)).
 
-## Fixes
+### Fixes
 
 * lang: Unused `#[account]`s are now parsed into the IDL correctly ([#177](https://github.com/project-serum/anchor/pull/177)).
 
 ## [0.4.2] - 2021-04-10
 
-## Features
+### Features
 
 * cli: Fund Anchor.toml configured wallet when testing ([#164](https://github.com/project-serum/anchor/pull/164)).
 * spl: Add initialize_account instruction for spl tokens ([#166](https://github.com/project-serum/anchor/pull/166)).
@@ -93,7 +99,7 @@ incremented for features.
 
 ## [0.4.0] - 2021-04-04
 
-## Features
+### Features
 
 * cli: Specify test files to run ([#118](https://github.com/project-serum/anchor/pull/118)).
 * lang: Allow overriding the `#[state]` account's size ([#121](https://github.com/project-serum/anchor/pull/121)).
@@ -102,15 +108,15 @@ incremented for features.
 * cli: TypeScript migrations ([#132](https://github.com/project-serum/anchor/pull/132)).
 * lang: Add `#[account(executable)]` attribute ([#140](https://github.com/project-serum/anchor/pull/140)).
 
-## Breaking Changes
+### Breaking Changes
 
 * client: Replace url str with `Cluster` struct when constructing clients ([#89](https://github.com/project-serum/anchor/pull/89)).
 * lang: Changes the account discriminator of `IdlAccount` to be namespaced by `"internal"` ([#128](https://github.com/project-serum/anchor/pull/128)).
 * lang, spl, cli: Upgrade solana toolchain to 1.6.3, a major version upgrade even though only the minor version is incremented. This allows for the removal of `-#![feature(proc_macro_hygiene)]`. ([#139](https://github.com/project-serum/anchor/pull/139)).
 
 ## [0.3.0] - 2021-03-12
 
-## Features
+### Features
 
 * ts: Allow preloading instructions for state rpc transactions ([cf9c84](https://github.com/project-serum/anchor/commit/cf9c847e4144989b5bc1936149d171e90204777b)).
 * ts: Export sighash coder function ([734c75](https://github.com/project-serum/anchor/commit/734c751882f43beec7ea3f0f4d988b502e3f24e4)).
@@ -124,7 +130,7 @@ incremented for features.
 
 * lang: Removes `IdlInstruction::Clear` ([#107](https://github.com/project-serum/anchor/pull/107)).
 
-## Fixes
+### Fixes
 
 * cli: Propagates mocha test exit status on error ([79b791](https://github.com/project-serum/anchor/commit/79b791ffa85ffae5b6163fa853562aa568650f21)).
 

cli/src/config.rs

@@ -210,7 +210,7 @@ pub fn read_all_programs() -> Result<Vec<Program>> {
     let mut r = vec![];
     for f in files {
         let path = f?.path();
-        let idl = anchor_syn::parser::file::parse(path.join("src/lib.rs"))?;
+        let idl = anchor_syn::idl::file::parse(path.join("src/lib.rs"))?;
         let lib_name = extract_lib_name(&path.join("Cargo.toml"))?;
         r.push(Program {
             lib_name,

cli/src/main.rs

@@ -633,7 +633,7 @@ fn fetch_idl(cfg_override: &ConfigOverride, idl_addr: Pubkey) -> Result<Idl> {
 
 fn extract_idl(file: &str) -> Result<Idl> {
     let file = shellexpand::tilde(file);
-    anchor_syn::parser::file::parse(&*file)
+    anchor_syn::idl::file::parse(&*file)
 }
 
 fn idl(cfg_override: &ConfigOverride, subcmd: IdlCommand) -> Result<()> {

examples/chat/programs/chat/src/lib.rs

@@ -36,7 +36,7 @@ pub mod chat {
 
 #[derive(Accounts)]
 pub struct CreateUser<'info> {
-    #[account(init, associated = authority, space = "312")]
+    #[account(init, associated = authority, space = 312)]
     user: ProgramAccount<'info, User>,
     #[account(signer)]
     authority: AccountInfo<'info>,

examples/misc/programs/misc/src/lib.rs

@@ -140,7 +140,7 @@ pub struct TestInitAssociatedAccount<'info> {
 
 #[derive(Accounts)]
 pub struct TestAssociatedAccount<'info> {
-    #[account(associated = authority, with = state, with = data)]
+    #[account(mut, associated = authority, with = state, with = data)]
     my_account: ProgramAccount<'info, TestData>,
     #[account(mut, signer)]
     authority: AccountInfo<'info>,

lang/attribute/interface/src/lib.rs

@@ -201,7 +201,7 @@ pub fn interface(
                 }
             };
 
-            let sighash_arr = anchor_syn::codegen::program::sighash(&trait_name, &method_name.to_string());
+            let sighash_arr = anchor_syn::codegen::program::common::sighash(&trait_name, &method_name.to_string());
             let sighash_tts: proc_macro2::TokenStream =
                 format!("{:?}", sighash_arr).parse().unwrap();
             quote! {

lang/attribute/program/src/lib.rs

@@ -1,7 +1,6 @@
 extern crate proc_macro;
 
-use anchor_syn::codegen::program as program_codegen;
-use anchor_syn::parser::program as program_parser;
+use quote::ToTokens;
 use syn::parse_macro_input;
 
 /// The `#[program]` attribute defines the module containing all instruction
@@ -11,7 +10,7 @@ pub fn program(
     _args: proc_macro::TokenStream,
     input: proc_macro::TokenStream,
 ) -> proc_macro::TokenStream {
-    let program_mod = parse_macro_input!(input as syn::ItemMod);
-    let code = program_codegen::generate(program_parser::parse(program_mod));
-    proc_macro::TokenStream::from(code)
+    parse_macro_input!(input as anchor_syn::Program)
+        .to_token_stream()
+        .into()
 }

lang/derive/accounts/src/lib.rs

@@ -1,8 +1,7 @@
 extern crate proc_macro;
 
-use anchor_syn::codegen::accounts as accounts_codegen;
-use anchor_syn::parser::accounts as accounts_parser;
 use proc_macro::TokenStream;
+use quote::ToTokens;
 use syn::parse_macro_input;
 
 /// Implements an [`Accounts`](./trait.Accounts.html) deserializer on the given
@@ -54,7 +53,7 @@ use syn::parse_macro_input;
 //       on absurdly long lines?
 #[proc_macro_derive(Accounts, attributes(account))]
 pub fn derive_anchor_deserialize(item: TokenStream) -> TokenStream {
-    let strct = parse_macro_input!(item as syn::ItemStruct);
-    let tts = accounts_codegen::generate(accounts_parser::parse(&strct));
-    proc_macro::TokenStream::from(tts)
+    parse_macro_input!(item as anchor_syn::AccountsStruct)
+        .to_token_stream()
+        .into()
 }

lang/src/ctor.rs

@@ -1,4 +1,4 @@
-use crate::{Accounts, Sysvar};
+use crate::{Accounts, Sysvar, ToAccountInfo};
 use solana_program::account_info::AccountInfo;
 use solana_program::sysvar::rent::Rent;
 

lang/src/idl.rs

@@ -49,7 +49,7 @@ pub type IdlCreateAccounts<'info> = crate::ctor::Ctor<'info>;
 pub struct IdlAccounts<'info> {
     #[account(mut, has_one = authority)]
     pub idl: ProgramAccount<'info, IdlAccount>,
-    #[account(signer, "authority.key != &Pubkey::new_from_array([0u8; 32])")]
+    #[account(signer, constraint = authority.key != &Pubkey::new_from_array([0u8; 32]))]
     pub authority: AccountInfo<'info>,
 }
 
@@ -58,7 +58,7 @@ pub struct IdlAccounts<'info> {
 pub struct IdlCreateBuffer<'info> {
     #[account(init)]
     pub buffer: ProgramAccount<'info, IdlAccount>,
-    #[account(signer, "authority.key != &Pubkey::new_from_array([0u8; 32])")]
+    #[account(signer, constraint = authority.key != &Pubkey::new_from_array([0u8; 32]))]
     pub authority: AccountInfo<'info>,
     pub rent: Sysvar<'info, Rent>,
 }
@@ -67,12 +67,12 @@ pub struct IdlCreateBuffer<'info> {
 #[derive(Accounts)]
 pub struct IdlSetBuffer<'info> {
     // The buffer with the new idl data.
-    #[account(mut, "buffer.authority == idl.authority")]
+    #[account(mut, constraint = buffer.authority == idl.authority)]
     pub buffer: ProgramAccount<'info, IdlAccount>,
     // The idl account to be updated with the buffer's data.
     #[account(mut, has_one = authority)]
     pub idl: ProgramAccount<'info, IdlAccount>,
-    #[account(signer, "authority.key != &Pubkey::new_from_array([0u8; 32])")]
+    #[account(signer, constraint = authority.key != &Pubkey::new_from_array([0u8; 32]))]
     pub authority: AccountInfo<'info>,
 }