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srml-contract: introduce ext_caller external function (#1255)

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* Implement ext_caller.

* Rebuild wasm.

* Update COMPLEIXTY.md
This commit is contained in:
Sergei Pepyakin
2018-12-12 14:00:21 +01:00
committed by Gav Wood
parent c1b0fba486
commit ce91da6b89
7 changed files with 176 additions and 3 deletions
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substrate/srml/contract/src/vm/runtime.rs
+10
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@@ -360,6 +360,16 @@ define_env!(init_env, <E: Ext>,
Err(sandbox::HostError)
},
// Stores the address of the caller into the scratch buffer.
//
// If this is a top-level call (i.e. initiated by an extrinsic) the origin address of the extrinsic
// will be returned. Otherwise, if this call is initiated by another contract then the address
// of the contract will be returned.
ext_caller(ctx) => {
ctx.scratch_buf = ctx.ext.caller().encode();
Ok(())
},
// Returns the size of the input buffer.
ext_input_size(ctx) -> u32 => {
Ok(ctx.input_data.len() as u32)