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docs: add warning about manually closing accounts (#1490)

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Paul 2022-02-21 16:47:19 +01:00 committed by GitHub
parent 99403bff7e
commit 48138894b1
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4 changed files with 28 additions and 0 deletions
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7
lang/src/accounts/account.rs
View File

@ -340,6 +340,13 @@ impl<'info, T: AccountSerialize + AccountDeserialize + Owner + Clone> AccountsEx
}
}
/// This function is for INTERNAL USE ONLY.
/// Do NOT use this function in a program.
/// Manual closing of `Account<'info, T>` types is NOT supported.
///
/// Details: Using `close` with `Account<'info, T>` is not safe because
/// it requires the `mut` constraint but for that type the constraint
/// overwrites the "closed account" discriminator at the end of the instruction.
impl<'info, T: AccountSerialize + AccountDeserialize + Owner + Clone> AccountsClose<'info>
for Account<'info, T>
{

7
lang/src/accounts/account_loader.rs
View File

@ -231,6 +231,13 @@ impl<'info, T: ZeroCopy + Owner> AccountsExit<'info> for AccountLoader<'info, T>
}
}
/// This function is for INTERNAL USE ONLY.
/// Do NOT use this function in a program.
/// Manual closing of `AccountLoader<'info, T>` types is NOT supported.
///
/// Details: Using `close` with `AccountLoader<'info, T>` is not safe because
/// it requires the `mut` constraint but for that type the constraint
/// overwrites the "closed account" discriminator at the end of the instruction.
impl<'info, T: ZeroCopy + Owner> AccountsClose<'info> for AccountLoader<'info, T> {
fn close(&self, sol_destination: AccountInfo<'info>) -> Result<()> {
crate::common::close(self.to_account_info(), sol_destination)

7
lang/src/accounts/loader.rs
View File

@ -174,6 +174,13 @@ impl<'info, T: ZeroCopy> AccountsExit<'info> for Loader<'info, T> {
}
}
/// This function is for INTERNAL USE ONLY.
/// Do NOT use this function in a program.
/// Manual closing of `Loader<'info, T>` types is NOT supported.
///
/// Details: Using `close` with `Loader<'info, T>` is not safe because
/// it requires the `mut` constraint but for that type the constraint
/// overwrites the "closed account" discriminator at the end of the instruction.
#[allow(deprecated)]
impl<'info, T: ZeroCopy> AccountsClose<'info> for Loader<'info, T> {
fn close(&self, sol_destination: AccountInfo<'info>) -> Result<()> {

7
lang/src/accounts/program_account.rs
View File

@ -104,6 +104,13 @@ impl<'info, T: AccountSerialize + AccountDeserialize + Clone> AccountsExit<'info
}
}
/// This function is for INTERNAL USE ONLY.
/// Do NOT use this function in a program.
/// Manual closing of `ProgramAccount<'info, T>` types is NOT supported.
///
/// Details: Using `close` with `ProgramAccount<'info, T>` is not safe because
/// it requires the `mut` constraint but for that type the constraint
/// overwrites the "closed account" discriminator at the end of the instruction.
#[allow(deprecated)]
impl<'info, T: AccountSerialize + AccountDeserialize + Clone> AccountsClose<'info>
for ProgramAccount<'info, T>