ckb_sdk/transaction/handler/
mod.rs

1use std::any::Any;
2
3use crate::{
4    core::TransactionBuilder, tx_builder::TxBuilderError, unlock::MultisigConfig, NetworkInfo,
5    ScriptGroup,
6};
7
8use self::{
9    sighash::Secp256k1Blake160SighashAllScriptContext, sudt::SudtContext, typeid::TypeIdContext,
10};
11
12pub mod multisig;
13pub mod sighash;
14pub mod sudt;
15pub mod typeid;
16
17#[async_trait::async_trait]
18pub trait ScriptHandler: Send + Sync {
19    /// Try to build transaction with the given script_group and context.
20    ///
21    /// Return true if script_group and context are matched, otherwise return false.
22    fn build_transaction(
23        &self,
24        tx_builder: &mut TransactionBuilder,
25        script_group: &mut ScriptGroup,
26        context: &dyn HandlerContext,
27    ) -> Result<bool, TxBuilderError>;
28    #[cfg(not(target_arch = "wasm32"))]
29    fn init(&mut self, network: &NetworkInfo) -> Result<(), TxBuilderError>;
30    async fn init_async(&mut self, network: &NetworkInfo) -> Result<(), TxBuilderError>;
31}
32
33pub trait Type2Any: 'static {
34    fn as_any(&self) -> &dyn Any;
35}
36
37impl<T: 'static> Type2Any for T {
38    fn as_any(&self) -> &dyn Any {
39        self
40    }
41}
42
43pub trait HandlerContext: Type2Any + Send + Sync {}
44
45pub struct HandlerContexts {
46    pub contexts: Vec<Box<dyn HandlerContext>>,
47}
48
49impl Default for HandlerContexts {
50    fn default() -> Self {
51        Self {
52            contexts: vec![
53                Box::new(Secp256k1Blake160SighashAllScriptContext),
54                Box::new(SudtContext),
55                Box::new(TypeIdContext),
56            ],
57        }
58    }
59}
60
61impl HandlerContexts {
62    pub fn new_sighash() -> Self {
63        Self {
64            contexts: vec![Box::new(Secp256k1Blake160SighashAllScriptContext)],
65        }
66    }
67
68    pub fn new_multisig(config: MultisigConfig) -> Self {
69        Self {
70            contexts: vec![Box::new(
71                multisig::Secp256k1Blake160MultisigAllScriptContext::new(config),
72            )],
73        }
74    }
75
76    pub fn add_context(&mut self, context: Box<dyn HandlerContext>) {
77        self.contexts.push(context);
78    }
79}
ckb_sdk/transaction/handler/mod.rs

ckb_sdk/transaction/handler/
mod.rs
