Separate the "program" feature of solana-sdk into a new crate called solana-program (bp #12989) (#13131)

* Add solana-program-sdk boilerplate (cherry picked from commit 3718771ffb) # Conflicts: # sdk/Cargo.toml * Initial population of solana-program-sdk (cherry picked from commit 63db324204) # Conflicts: # Cargo.lock * Port programs to solana-program-sdk (cherry picked from commit fe68f7f786) # Conflicts: # programs/bpf/Cargo.lock # programs/bpf/rust/128bit/Cargo.toml # programs/bpf/rust/128bit_dep/Cargo.toml # programs/bpf/rust/alloc/Cargo.toml # programs/bpf/rust/call_depth/Cargo.toml # programs/bpf/rust/custom_heap/Cargo.toml # programs/bpf/rust/dep_crate/Cargo.toml # programs/bpf/rust/deprecated_loader/Cargo.toml # programs/bpf/rust/dup_accounts/Cargo.toml # programs/bpf/rust/error_handling/Cargo.toml # programs/bpf/rust/external_spend/Cargo.toml # programs/bpf/rust/instruction_introspection/Cargo.toml # programs/bpf/rust/invoke/Cargo.toml # programs/bpf/rust/invoked/Cargo.toml # programs/bpf/rust/iter/Cargo.toml # programs/bpf/rust/many_args/Cargo.toml # programs/bpf/rust/many_args_dep/Cargo.toml # programs/bpf/rust/noop/Cargo.toml # programs/bpf/rust/panic/Cargo.toml # programs/bpf/rust/param_passing/Cargo.toml # programs/bpf/rust/param_passing_dep/Cargo.toml # programs/bpf/rust/rand/Cargo.toml # programs/bpf/rust/ristretto/Cargo.toml # programs/bpf/rust/sanity/Cargo.toml # programs/bpf/rust/sha256/Cargo.toml # programs/bpf/rust/sysval/Cargo.toml * Only activate legacy program feature for the solana-sdk crate (cherry picked from commit 85c51f5787) * Run serum-dex unit tests (cherry picked from commit 92ce381d60) * Rename solana-program-sdk to solana-program (cherry picked from commit dd711ab5fb) # Conflicts: # programs/bpf/rust/128bit/Cargo.toml # programs/bpf/rust/128bit_dep/Cargo.toml # programs/bpf/rust/alloc/Cargo.toml # programs/bpf/rust/call_depth/Cargo.toml # programs/bpf/rust/custom_heap/Cargo.toml # programs/bpf/rust/dep_crate/Cargo.toml # programs/bpf/rust/deprecated_loader/Cargo.toml # programs/bpf/rust/dup_accounts/Cargo.toml # programs/bpf/rust/error_handling/Cargo.toml # programs/bpf/rust/external_spend/Cargo.toml # programs/bpf/rust/instruction_introspection/Cargo.toml # programs/bpf/rust/invoke/Cargo.toml # programs/bpf/rust/invoked/Cargo.toml # programs/bpf/rust/iter/Cargo.toml # programs/bpf/rust/many_args/Cargo.toml # programs/bpf/rust/many_args_dep/Cargo.toml # programs/bpf/rust/noop/Cargo.toml # programs/bpf/rust/panic/Cargo.toml # programs/bpf/rust/param_passing/Cargo.toml # programs/bpf/rust/param_passing_dep/Cargo.toml # programs/bpf/rust/rand/Cargo.toml # programs/bpf/rust/ristretto/Cargo.toml # programs/bpf/rust/sanity/Cargo.toml # programs/bpf/rust/sha256/Cargo.toml # programs/bpf/rust/sysval/Cargo.toml * Update frozen_abi hashes The movement of files in sdk/ caused ABI hashes to change (cherry picked from commit a4956844bd) * Resolve merge conflicts Co-authored-by: Michael Vines <mvines@gmail.com>
2020-10-24 17:25:22 +00:00
parent 62e0e19961
commit eb9cef0cd4
143 changed files with 1616 additions and 1483 deletions
--- a/sdk/program/src/program_pack.rs
+++ b/sdk/program/src/program_pack.rs
@@ -0,0 +1,57 @@
+//! State transition types
+
+use crate::program_error::ProgramError;
+
+/// Check if a program account state is initialized
+pub trait IsInitialized {
+    /// Is initialized
+    fn is_initialized(&self) -> bool;
+}
+
+/// Depends on Sized
+pub trait Sealed: Sized {}
+
+/// Safely and efficiently (de)serialize account state
+pub trait Pack: Sealed {
+    /// The length, in bytes, of the packed representation
+    const LEN: usize;
+    #[doc(hidden)]
+    fn pack_into_slice(&self, dst: &mut [u8]);
+    #[doc(hidden)]
+    fn unpack_from_slice(src: &[u8]) -> Result<Self, ProgramError>;
+
+    /// Get the packed length
+    fn get_packed_len() -> usize {
+        Self::LEN
+    }
+
+    /// Unpack from slice and check if initialized
+    fn unpack(input: &[u8]) -> Result<Self, ProgramError>
+    where
+        Self: IsInitialized,
+    {
+        let value = Self::unpack_unchecked(input)?;
+        if value.is_initialized() {
+            Ok(value)
+        } else {
+            Err(ProgramError::UninitializedAccount)
+        }
+    }
+
+    /// Unpack from slice without checking if initialized
+    fn unpack_unchecked(input: &[u8]) -> Result<Self, ProgramError> {
+        if input.len() != Self::LEN {
+            return Err(ProgramError::InvalidAccountData);
+        }
+        Ok(Self::unpack_from_slice(input)?)
+    }
+
+    /// Pack into slice
+    fn pack(src: Self, dst: &mut [u8]) -> Result<(), ProgramError> {
+        if dst.len() != Self::LEN {
+            return Err(ProgramError::InvalidAccountData);
+        }
+        src.pack_into_slice(dst);
+        Ok(())
+    }
+}