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smartcontract: add some notes on API limitations

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Roman Khimov 2022-09-06 17:30:56 +03:00
parent 69176168c3
commit ea92f3d716
1 changed files with 12 additions and 0 deletions
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12
pkg/smartcontract/builder.go
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@ -18,6 +18,18 @@ import (
// "entry scripts"), so the set of methods it exposes is tailored to this model // "entry scripts"), so the set of methods it exposes is tailored to this model
// of use and any calls emitted don't limit flags in any way (always use // of use and any calls emitted don't limit flags in any way (always use
// callflag.All). // callflag.All).
//
// When using this API keep in mind that the resulting script can't be larger than
// 64K (transaction.MaxScriptLength) to be used as a transaction entry script and
// it can't have more than 2048 elements on the stack. Technically, this limits
// the number of calls that can be made to a lesser value because invocations use
// the same stack too (the exact number depends on methods and parameters).
//
// This API is not (and won't be) suitable to create complex scripts that use
// returned values as parameters to other calls or perform loops or do any other
// things that can be done in NeoVM. This hardly can be expressed in an API like
// this, so if you need more than that and if you're ready to work with bare
// NeoVM instructions please refer to [emit] and [opcode] packages.
type Builder struct { type Builder struct {
bw *io.BufBinWriter bw *io.BufBinWriter
} }