September 2018
Intermediate to advanced
398 pages
9h 43m
English
Content preview from Scala Programming Projects
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Refactoring simulatePlan
Since simulatePlan calls futureCapital, we need to change its implementation to take into account the new return type, as shown in the following code:
def simulatePlan(returns: Returns, params: RetCalcParams, nbOfMonthsSavings: Int, monthOffset: Int = 0): Either[RetCalcError, (Double, Double)] = { import params._ for { capitalAtRetirement <- futureCapital( returns = OffsetReturns(returns, monthOffset), nbOfMonths = nbOfMonthsSavings, netIncome = netIncome, currentExpenses = currentExpenses, initialCapital = initialCapital) capitalAfterDeath <- futureCapital( returns = OffsetReturns(returns, monthOffset + nbOfMonthsSavings), nbOfMonths = nbOfMonthsInRetirement, netIncome = 0, currentExpenses = currentExpenses,
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