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nim-ethers
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Add Contract.connect()

This commit is contained in:
Mark Spanbroek 2022-01-26 12:23:30 +01:00
parent 1e767b2107
commit 9eee20e49d
2 changed files with 14 additions and 0 deletions
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3
ethers/contract.nim
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@ -25,6 +25,9 @@ func new*(ContractType: type Contract,
signer: Signer): ContractType = signer: Signer): ContractType =
ContractType(signer: some signer, provider: signer.provider, address: address) ContractType(signer: some signer, provider: signer.provider, address: address)
func connect*[T: Contract](contract: T, provider: Provider | Signer): T =
T.new(contract.address, provider)
func provider*(contract: Contract): Provider = func provider*(contract: Contract): Provider =
contract.provider contract.provider

11
testmodule/testContracts.nim
View File

@ -11,6 +11,7 @@ type
method totalSupply*(erc20: Erc20): UInt256 {.base, contract, view.} method totalSupply*(erc20: Erc20): UInt256 {.base, contract, view.}
method balanceOf*(erc20: Erc20, account: Address): UInt256 {.base, contract, view.} method balanceOf*(erc20: Erc20, account: Address): UInt256 {.base, contract, view.}
method allowance*(erc20: Erc20, owner, spender: Address): UInt256 {.base, contract, view.} method allowance*(erc20: Erc20, owner, spender: Address): UInt256 {.base, contract, view.}
method transfer*(erc20: Erc20, recipient: Address, amount: UInt256) {.base, contract.}
method mint(token: TestToken, holder: Address, amount: UInt256) {.base, contract.} method mint(token: TestToken, holder: Address, amount: UInt256) {.base, contract.}
@ -66,3 +67,13 @@ suite "Contracts":
let works = compiles: let works = compiles:
proc foo(token: TestToken, bar: Address): UInt256 {.contract.} proc foo(token: TestToken, bar: Address): UInt256 {.contract.}
check not works check not works
test "can connect to different providers and signers":
let signer0 = provider.getSigner(accounts[0])
let signer1 = provider.getSigner(accounts[1])
await token.connect(signer0).mint(accounts[0], 100.u256)
await token.connect(signer0).transfer(accounts[1], 50.u256)
await token.connect(signer1).transfer(accounts[2], 25.u256)
check (await token.connect(provider).balanceOf(accounts[0])) == 50.u256
check (await token.connect(provider).balanceOf(accounts[1])) == 25.u256
check (await token.connect(provider).balanceOf(accounts[2])) == 25.u256