Fix docs

Author: febo

README.md

@@ -70,7 +70,6 @@ To use the `entrypoint!` macro, use the following in your entrypoint definition:
 use pinocchio::{
   account::AccountView,
   entrypoint,
-  msg,
   ProgramResult,
   Address
 };
@@ -82,7 +81,6 @@ pub fn process_instruction(
   accounts: &[AccountView],
   instruction_data: &[u8],
 ) -> ProgramResult {
-  msg!("Hello from my program!");
   Ok(())
 }
 ```
@@ -114,7 +112,6 @@ use pinocchio::{
   default_panic_handler,
   entrypoint::InstructionContext,
   lazy_program_entrypoint,
-  msg,
   ProgramResult
 };
 
@@ -125,7 +122,6 @@ default_panic_handler!();
 pub fn process_instruction(
   mut context: InstructionContext
 ) -> ProgramResult {
-    msg!("Hello from my lazy program!");
     Ok(())
 }
 ```
@@ -149,7 +145,6 @@ To use the `no_allocator!` macro, use the following in your entrypoint definitio
 use pinocchio::{
   account::AccountView,
   default_panic_handler,
-  msg,
   no_allocator,
   program_entrypoint,
   ProgramResult,
@@ -165,7 +160,6 @@ pub fn process_instruction(
   accounts: &[AccountView],
   instruction_data: &[u8],
 ) -> ProgramResult {
-  msg!("Hello from `no_std` program!");
   Ok(())
 }
 ```
@@ -174,13 +168,15 @@ pub fn process_instruction(
 
 ## Crate feature: `std`
 
-By default, `pinocchio` is a `no_std` crate. This means that it does not use any code from the standard (`std`) library. While this does not affect how `pinocchio` is used, there is one particular apparent difference. In a `no_std` environment, the `msg!` macro does not provide any formatting options since the `format!` macro requires the `std` library. In order to use `msg!` with formatting, the `std` feature should be enabled when adding `pinocchio` as a dependency:
+By default, Pinocchio is a `no_std` crate. This means that it does not use any code from the
+standard (`std`) library. While this does not affect how Pinocchio is used, there is a one
+particular apparent difference. Helpers that need to allocate memory, such as fetching `SlotHashes`
+sysvar data, are not available. To enable these helpers, the `std` feature must be enabled when adding
+Pinocchio as a dependency:
 ```
-pinocchio = { version = "0.7.0", features = ["std"] }
+pinocchio = { version = "0.10.0", features = ["std"] }
 ```
 
-Instead of enabling the `std` feature to be able to format log messages with `msg!`, it is recommended to use the [`pinocchio-log`](https://crates.io/crates/pinocchio-log) crate. This crate provides a lightweight `log!` macro with better compute units consumption than the standard `format!` macro without requiring the `std` library.
-
 ## Advance entrypoint configuration
 
 The symbols emitted by the entrypoint macros — program entrypoint, global allocator and default panic handler — can only be defined once globally. If the program crate is also intended to be used as a library, it is common practice to define a Cargo [feature](https://doc.rust-lang.org/cargo/reference/features.html) in your program crate to conditionally enable the module that includes the `entrypoint!` macro invocation. The convention is to name the feature `bpf-entrypoint`.
@@ -191,7 +187,6 @@ mod entrypoint {
   use pinocchio::{
     account::AccountView,
     entrypoint,
-    msg,
     ProgramResult,
     Address
   };
@@ -203,7 +198,6 @@ mod entrypoint {
     accounts: &[AccountView],
     instruction_data: &[u8],
   ) -> ProgramResult {
-    msg!("Hello from my program!");
     Ok(())
   }
 }

sdk/pinocchio/src/entrypoint/lazy.rs

@@ -62,7 +62,6 @@ macro_rules! lazy_entrypoint {
 ///         default_panic_handler,
 ///         entrypoint::InstructionContext,
 ///         lazy_program_entrypoint,
-///         msg,
 ///         ProgramResult
 ///     };
 ///
@@ -73,7 +72,6 @@ macro_rules! lazy_entrypoint {
 ///     pub fn process_instruction(
 ///         mut context: InstructionContext,
 ///     ) -> ProgramResult {
-///         msg!("Hello from my `lazy` program!");
 ///         Ok(())
 ///     }
 ///

sdk/pinocchio/src/entrypoint/mod.rs

@@ -94,7 +94,6 @@ const STATIC_ACCOUNT_DATA: usize = size_of::<Account>() + MAX_PERMITTED_DATA_INC
 ///     use pinocchio::{
 ///         AccountView,
 ///         entrypoint,
-///         msg,
 ///         Address,
 ///         ProgramResult
 ///     };
@@ -106,7 +105,6 @@ const STATIC_ACCOUNT_DATA: usize = size_of::<Account>() + MAX_PERMITTED_DATA_INC
 ///         accounts: &[AccountView],
 ///         instruction_data: &[u8],
 ///     ) -> ProgramResult {
-///         msg!("Hello from my program!");
 ///         Ok(())
 ///     }
 ///

sdk/pinocchio/src/lib.rs

@@ -36,7 +36,6 @@
 //!   AccountView,
 //!   Address,
 //!   entrypoint,
-//!   msg,
 //!   ProgramResult
 //! };
 //!
@@ -47,7 +46,6 @@
 //!   accounts: &[AccountView],
 //!   instruction_data: &[u8],
 //! ) -> ProgramResult {
-//!   msg!("Hello from my program!");
 //!   Ok(())
 //! }
 //! ```
@@ -97,7 +95,6 @@
 //!   default_panic_handler,
 //!   entrypoint::InstructionContext,
 //!   lazy_program_entrypoint,
-//!   msg,
 //!   ProgramResult
 //! };
 //!
@@ -108,7 +105,6 @@
 //! pub fn process_instruction(
 //!   mut context: InstructionContext
 //! ) -> ProgramResult {
-//!     msg!("Hello from my lazy program!");
 //!     Ok(())
 //! }
 //! ```
@@ -142,7 +138,6 @@
 //!   AccountView,
 //!   Address,
 //!   default_panic_handler,
-//!   msg,
 //!   no_allocator,
 //!   program_entrypoint,
 //!   ProgramResult
@@ -157,7 +152,6 @@
 //!   accounts: &[AccountView],
 //!   instruction_data: &[u8],
 //! ) -> ProgramResult {
-//!   msg!("Hello from `no_std` program!");
 //!   Ok(())
 //! }
 //! ```
@@ -170,19 +164,14 @@
 //!
 //! By default, Pinocchio is a `no_std` crate. This means that it does not use any
 //! code from the standard (`std`) library. While this does not affect how Pinocchio
-//! is used, there is a one particular apparent difference. In a `no_std` environment,
-//! the [`msg!`] macro does not provide any formatting options since the `format!` macro
-//! requires the `std` library. In order to use [`msg!`] with formatting, the `std`
-//! feature should be enable when adding Pinocchio as a dependency:
+//! is used, there is a one particular apparent difference. Helpers that need to
+//! allocate memory, such as fetching `SlotHashes` sysvar, are not available. To
+//! enable these helpers, the `std` feature must be enabled when adding Pinocchio
+//! as a dependency:
 //! ```ignore
-//! pinocchio = { version = "0.7.0", features = ["std"] }
+//! pinocchio = { version = "0.10.0", features = ["std"] }
 //! ```
 //!
-//! Instead of enabling the `std` feature to be able to format log messages with [`msg!`],
-//! it is recommended to use the [`pinocchio-log`](https://crates.io/crates/pinocchio-log)
-//! crate. This crate provides a lightweight `log!` macro with better compute units
-//! consumption than the standard `format!` macro without requiring the `std` library.
-//!
 //! ## Advanced entrypoint configuration
 //!
 //! The symbols emitted by the entrypoint macros - program entrypoint, global
@@ -199,7 +188,6 @@
 //!     AccountView,
 //!     Address,
 //!     entrypoint,
-//!     msg,
 //!     ProgramResult
 //!   };
 //!
@@ -210,7 +198,6 @@
 //!     accounts: &[AccountView],
 //!     instruction_data: &[u8],
 //!   ) -> ProgramResult {
-//!     msg!("Hello from my program!");
 //!     Ok(())
 //!   }
 //! }