51 lines
1.8 KiB
JavaScript
51 lines
1.8 KiB
JavaScript
import { CompilationContext } from '/imports/parser/parser.js';
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import INLINE_CALCULATION_REGEX from '/imports/constants/INLINE_CALCULTION_REGEX.js';
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import ConstantNode from '/imports/parser/parseTree/ConstantNode.js';
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import ErrorNode from '/imports/parser/parseTree/ErrorNode.js';
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export default function computeCalculations(computation, node){
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if (!node.data) return;
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// evaluate all the calculations
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node.data._computationDetails?.calculations?.forEach(calcObj => {
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evaluateCalculation(calcObj, computation.scope)
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});
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node.data._computationDetails?.inlineCalculations?.forEach(inlineCalcObj => {
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embedInlineCalculations(inlineCalcObj);
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});
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}
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function evaluateCalculation(calculation, scope){
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const context = new CompilationContext();
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const parseNode = calculation._parsedCalculation;
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const fn = calculation._parseLevel;
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const calculationScope = {...calculation._localScope, ...scope};
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const resultNode = parseNode[fn](calculationScope, context);
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if (resultNode instanceof ConstantNode){
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calculation.value = resultNode.value;
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} else if (resultNode instanceof ErrorNode){
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calculation.value = null;
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} else {
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calculation.value = resultNode.toString();
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}
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if (calculation.errors){
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calculation.errors = [...calculation.errors, ...context.errors]
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} else {
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calculation.errors = context.errors
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}
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// remove the working fields
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delete calculation._parseLevel;
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delete calculation._parsedCalculation;
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delete calculation._localScope;
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}
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function embedInlineCalculations(inlineCalcObj){
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const string = inlineCalcObj.text;
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const calculations = inlineCalcObj.inlineCalculations;
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if (!string || !calculations) return;
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let index = 0;
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inlineCalcObj.value = string.replace(INLINE_CALCULATION_REGEX, substring => {
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let calc = calculations[index++];
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return (calc && 'value' in calc) ? calc.value : substring;
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});
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}
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