Function

Static Public Summary
public	makeDirectEvaluators(web3: Web3, gateway: Gateway): NodeEvaluators Returns NodeEvaluators object for evaluating using `direct` (See makeEstimationEvaluators) method.
public	makeEstimationEvaluators(): NodeEvaluators Returns NodeEvaluators object for evaluating using `estimate` method.
public	makeRandomIDFunc(randomFunc: Function): Function Creates a random ID generator given a PRNG

Static Public

public makeDirectEvaluators(web3: Web3, gateway: Gateway): NodeEvaluators source

import {makeDirectEvaluators} from 'fincontracts-lib/src/fincontract-evaluator.js'

Returns NodeEvaluators object for evaluating using direct (See makeEstimationEvaluators) method. Nodes are defined exactly as for estimate method with exceptions of:

if : selects the child interval based on the boolean value obtained from calling the gateway
scaleObs : interval arithmetic scalar multiplication with scale obtained from calling the gateway

Params:

Name	Type	Attribute	Description
web3	Web3		a web3 instance connected to Ethereum node
gateway	Gateway		a gateway instance not connected to any address

Return:

NodeEvaluators

node evaluators object describing direct evaluation method

public makeEstimationEvaluators(): NodeEvaluators source

import {makeEstimationEvaluators} from 'fincontracts-lib/src/fincontract-evaluator.js'

Returns NodeEvaluators object for evaluating using estimate method. Nodes are defined as:

if : interval arithmetic union
or : interval arithmetic union
and : interval arithmetic addition
give : interval arithmetic negation
scale : interval arithmetic scalar mulitplication with scale
scaleObs : interval arithmetic multiplication with estimate scale interval
timebound : zero interval if fincontract's upper bound has passed
one : interval arithmetic 1
zero : interval arithmetic 0

Return:

NodeEvaluators

node evaluators object describing estimate evaluation method

public makeRandomIDFunc(randomFunc: Function): Function source

import {makeRandomIDFunc} from 'fincontracts-lib/src/fincontract-dot-generator.js'

Creates a random ID generator given a PRNG

Params:

Name	Type	Attribute	Description
randomFunc	Function		a PRNG to be used as a source of randomness

Return:

Function

returns a random ID generator function