mirror of
https://github.com/logos-storage/nim-ethers.git
synced 2026-01-02 13:43:06 +00:00
61 lines
1.7 KiB
Nim
61 lines
1.7 KiB
Nim
import std/macros
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import ./errors/conversion
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import ./syntax
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import ./transactions
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import ./errors
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func addContractCall(procedure: var NimNode) =
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let contractCall = getContractCall(procedure)
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let returnType = procedure.params[0]
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let isGetter = procedure.isGetter
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let errors = getErrorTypes(procedure)
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func call: NimNode =
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if returnType.kind == nnkEmpty:
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quote:
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await callTransaction(`contractCall`)
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elif returnType.isMultipleReturn or isGetter:
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quote:
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return await callTransaction(`contractCall`, `returnType`)
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else:
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quote:
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# solidity functions return a tuple, so wrap return type in a tuple
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let tupl = await callTransaction(`contractCall`, (`returnType`,))
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return tupl[0]
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func send: NimNode =
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if returnType.kind == nnkEmpty:
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quote:
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discard await sendTransaction(`contractCall`)
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else:
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quote:
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when typeof(result) isnot Confirmable:
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{.error:
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"unexpected return type, " &
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"missing {.view.}, {.pure.} or {.getter.} ?"
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.}
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let response = await sendTransaction(`contractCall`)
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let convert = customErrorConversion(`errors`)
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Confirmable(response: response, convert: convert)
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procedure.body =
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if procedure.isConstant:
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call()
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else:
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send()
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func addFuture(procedure: var NimNode) =
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let returntype = procedure[3][0]
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if returntype.kind != nnkEmpty:
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procedure[3][0] = quote: Future[`returntype`]
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func createContractFunction*(procedure: NimNode): NimNode =
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result = copyNimTree(procedure)
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result.addOverridesParameter()
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result.addContractCall()
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result.addErrorHandling()
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result.addFuture()
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result.addAsyncPragma()
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