1a14393031
Parsing is one of the more expensive computations done to characters, so the parser results are now stored on the DB and only updated if they are dirty. A hash is used to determine if the calculation has changed since the last computation
43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
import resolve, { toString } from '/imports/parser/resolve.js';
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import INLINE_CALCULATION_REGEX from '/imports/constants/INLINE_CALCULTION_REGEX.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 parseNode = calculation.parseNode;
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const fn = calculation._parseLevel;
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const calculationScope = {...calculation._localScope, ...scope};
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const {result: resultNode, context} = resolve(fn, parseNode, calculationScope);
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calculation.errors = context.errors;
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if (resultNode?.parseType === 'constant'){
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calculation.value = resultNode.value;
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} else if (resultNode?.parseType === 'error'){
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calculation.value = null;
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} else {
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calculation.value = toString(resultNode);
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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._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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