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https://github.com/pezkuwichain/pezkuwi-subxt.git
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contracts: Add new seal_call that offers new features (#8909)
* Add new `seal_call` that offers new features * Fix doc typo Co-authored-by: Michael Müller <michi@parity.io> * Fix doc typos Co-authored-by: Michael Müller <michi@parity.io> * Fix comment on assert * Update CHANGELOG.md Co-authored-by: Michael Müller <michi@parity.io>
This commit is contained in:
Alexander Theißen
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GitHub
GitHub
parent
5c14dd3f32
commit
60256d752e
@@ -289,7 +289,14 @@ mod tests {
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struct TransferEntry {
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to: AccountIdOf<Test>,
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value: u64,
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}
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#[derive(Debug, PartialEq, Eq)]
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struct CallEntry {
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to: AccountIdOf<Test>,
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value: u64,
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data: Vec<u8>,
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allows_reentry: bool,
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}
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pub struct MockExt {
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@@ -297,6 +304,7 @@ mod tests {
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rent_allowance: u64,
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instantiates: Vec<InstantiateEntry>,
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terminations: Vec<TerminationEntry>,
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calls: Vec<CallEntry>,
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transfers: Vec<TransferEntry>,
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restores: Vec<RestoreEntry>,
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// (topics, data)
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@@ -307,6 +315,11 @@ mod tests {
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debug_buffer: Vec<u8>,
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}
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/// The call is mocked and just returns this hardcoded value.
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fn call_return_data() -> Bytes {
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Bytes(vec![0xDE, 0xAD, 0xBE, 0xEF])
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}
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impl Default for MockExt {
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fn default() -> Self {
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Self {
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@@ -314,6 +327,7 @@ mod tests {
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rent_allowance: Default::default(),
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instantiates: Default::default(),
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terminations: Default::default(),
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calls: Default::default(),
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transfers: Default::default(),
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restores: Default::default(),
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events: Default::default(),
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@@ -334,13 +348,15 @@ mod tests {
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to: AccountIdOf<Self::T>,
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value: u64,
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data: Vec<u8>,
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allows_reentry: bool,
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) -> Result<(ExecReturnValue, u32), (ExecError, u32)> {
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self.transfers.push(TransferEntry {
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self.calls.push(CallEntry {
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to,
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value,
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data: data,
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data,
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allows_reentry,
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});
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Ok((ExecReturnValue { flags: ReturnFlags::empty(), data: Bytes(Vec::new()) }, 0))
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Ok((ExecReturnValue { flags: ReturnFlags::empty(), data: call_return_data() }, 0))
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}
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fn instantiate(
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&mut self,
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@@ -374,7 +390,6 @@ mod tests {
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self.transfers.push(TransferEntry {
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to: to.clone(),
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value,
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data: Vec::new(),
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});
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Ok(())
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}
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@@ -526,7 +541,6 @@ mod tests {
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&[TransferEntry {
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to: ALICE,
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value: 153,
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data: Vec::new(),
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}]
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);
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}
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@@ -587,11 +601,192 @@ mod tests {
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));
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assert_eq!(
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&mock_ext.transfers,
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&[TransferEntry {
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&mock_ext.calls,
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&[CallEntry {
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to: ALICE,
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value: 6,
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data: vec![1, 2, 3, 4],
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allows_reentry: true,
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}]
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);
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}
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#[test]
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#[cfg(feature = "unstable-interface")]
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fn contract_call_forward_input() {
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const CODE: &str = r#"
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(module
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(import "__unstable__" "seal_call" (func $seal_call (param i32 i32 i32 i64 i32 i32 i32 i32 i32 i32) (result i32)))
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(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
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(import "env" "memory" (memory 1 1))
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(func (export "call")
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(drop
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(call $seal_call
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(i32.const 1) ;; Set FORWARD_INPUT bit
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(i32.const 4) ;; Pointer to "callee" address.
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(i32.const 32) ;; Length of "callee" address.
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(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
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(i32.const 36) ;; Pointer to the buffer with value to transfer
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(i32.const 8) ;; Length of the buffer with value to transfer.
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(i32.const 44) ;; Pointer to input data buffer address
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(i32.const 4) ;; Length of input data buffer
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(i32.const 4294967295) ;; u32 max value is the sentinel value: do not copy output
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(i32.const 0) ;; Length is ignored in this case
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)
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)
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;; triggers a trap because we already forwarded the input
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(call $seal_input (i32.const 1) (i32.const 44))
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)
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(func (export "deploy"))
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;; Destination AccountId (ALICE)
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(data (i32.const 4)
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"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01"
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"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01"
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)
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;; Amount of value to transfer.
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;; Represented by u64 (8 bytes long) in little endian.
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(data (i32.const 36) "\2A\00\00\00\00\00\00\00")
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;; The input is ignored because we forward our own input
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(data (i32.const 44) "\01\02\03\04")
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)
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"#;
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let mut mock_ext = MockExt::default();
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let input = vec![0xff, 0x2a, 0x99, 0x88];
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frame_support::assert_err!(
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execute(CODE, input.clone(), &mut mock_ext),
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<Error<Test>>::InputForwarded,
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);
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assert_eq!(
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&mock_ext.calls,
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&[CallEntry {
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to: ALICE,
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value: 0x2a,
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data: input,
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allows_reentry: false,
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}]
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);
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}
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#[test]
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#[cfg(feature = "unstable-interface")]
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fn contract_call_clone_input() {
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const CODE: &str = r#"
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(module
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(import "__unstable__" "seal_call" (func $seal_call (param i32 i32 i32 i64 i32 i32 i32 i32 i32 i32) (result i32)))
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(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
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(import "seal0" "seal_return" (func $seal_return (param i32 i32 i32)))
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(import "env" "memory" (memory 1 1))
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(func (export "call")
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(drop
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(call $seal_call
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(i32.const 11) ;; Set FORWARD_INPUT | CLONE_INPUT | ALLOW_REENTRY bits
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(i32.const 4) ;; Pointer to "callee" address.
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(i32.const 32) ;; Length of "callee" address.
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(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
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(i32.const 36) ;; Pointer to the buffer with value to transfer
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(i32.const 8) ;; Length of the buffer with value to transfer.
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(i32.const 44) ;; Pointer to input data buffer address
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(i32.const 4) ;; Length of input data buffer
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(i32.const 4294967295) ;; u32 max value is the sentinel value: do not copy output
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(i32.const 0) ;; Length is ignored in this case
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)
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)
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;; works because the input was cloned
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(call $seal_input (i32.const 0) (i32.const 44))
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;; return the input to caller for inspection
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(call $seal_return (i32.const 0) (i32.const 0) (i32.load (i32.const 44)))
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)
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(func (export "deploy"))
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;; Destination AccountId (ALICE)
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(data (i32.const 4)
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"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01"
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"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01"
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)
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;; Amount of value to transfer.
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;; Represented by u64 (8 bytes long) in little endian.
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(data (i32.const 36) "\2A\00\00\00\00\00\00\00")
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;; The input is ignored because we forward our own input
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(data (i32.const 44) "\01\02\03\04")
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)
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"#;
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let mut mock_ext = MockExt::default();
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let input = vec![0xff, 0x2a, 0x99, 0x88];
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let result = execute(CODE, input.clone(), &mut mock_ext).unwrap();
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assert_eq!(result.data.0, input);
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assert_eq!(
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&mock_ext.calls,
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&[CallEntry {
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to: ALICE,
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value: 0x2a,
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data: input,
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allows_reentry: true,
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}]
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);
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}
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#[test]
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#[cfg(feature = "unstable-interface")]
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fn contract_call_tail_call() {
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const CODE: &str = r#"
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(module
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(import "__unstable__" "seal_call" (func $seal_call (param i32 i32 i32 i64 i32 i32 i32 i32 i32 i32) (result i32)))
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(import "env" "memory" (memory 1 1))
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(func (export "call")
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(drop
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(call $seal_call
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(i32.const 5) ;; Set FORWARD_INPUT | TAIL_CALL bit
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(i32.const 4) ;; Pointer to "callee" address.
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(i32.const 32) ;; Length of "callee" address.
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(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
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(i32.const 36) ;; Pointer to the buffer with value to transfer
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(i32.const 8) ;; Length of the buffer with value to transfer.
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(i32.const 0) ;; Pointer to input data buffer address
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(i32.const 0) ;; Length of input data buffer
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(i32.const 4294967295) ;; u32 max value is the sentinel value: do not copy output
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(i32.const 0) ;; Length is ignored in this case
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)
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)
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;; a tail call never returns
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(unreachable)
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)
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(func (export "deploy"))
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;; Destination AccountId (ALICE)
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(data (i32.const 4)
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"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01"
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"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01"
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)
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;; Amount of value to transfer.
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;; Represented by u64 (8 bytes long) in little endian.
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(data (i32.const 36) "\2A\00\00\00\00\00\00\00")
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)
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"#;
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let mut mock_ext = MockExt::default();
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let input = vec![0xff, 0x2a, 0x99, 0x88];
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let result = execute(CODE, input.clone(), &mut mock_ext).unwrap();
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assert_eq!(result.data, call_return_data());
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assert_eq!(
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&mock_ext.calls,
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&[CallEntry {
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to: ALICE,
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value: 0x2a,
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data: input,
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allows_reentry: false,
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}]
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);
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}
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@@ -772,11 +967,12 @@ mod tests {
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));
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assert_eq!(
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&mock_ext.transfers,
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&[TransferEntry {
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&mock_ext.calls,
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&[CallEntry {
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to: ALICE,
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value: 6,
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data: vec![1, 2, 3, 4],
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allows_reentry: true,
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}]
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);
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}
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