44 lines
1.7 KiB
JavaScript
44 lines
1.7 KiB
JavaScript
import SymbolNode from '/imports/parser/parseTree/SymbolNode.js';
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import AccessorNode from '/imports/parser/parseTree/AccessorNode.js';
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import findAncestorByType from '/imports/api/engine/computation/utility/findAncestorByType.js';
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export default function linkCalculationDependencies(dependencyGraph, prop, {propsById}){
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prop._computationDetails.calculations.forEach(calcObj => {
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// Store resolved ancestors
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let memo = {
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// ancestors: {} //this gets added if there are resolved ancestors
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};
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// Traverse the parsed calculation looking for variable names
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calcObj._parsedCalculation.traverse(node => {
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// Skip nodes that aren't symbols or accessors
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if (!(node instanceof SymbolNode || node instanceof AccessorNode)) return;
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// Link ancestor references as direct property dependencies
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if (node.name[0] === '#'){
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let ancestorProp = getAncestorProp(
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node.name.slice(1), memo, prop, propsById
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);
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if (!ancestorProp) return;
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dependencyGraph.addLink(prop._id, ancestorProp._id, calcObj);
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} else {
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// Link variable name references as variable dependencies
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dependencyGraph.addLink(prop._id, node.name, calcObj);
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}
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});
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// Store the resolved ancestors in this calculation's local scope
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if (memo.ancestors) {
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calcObj._localScope = { ...calcObj._localScope, ...memo.ancestors};
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}
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});
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}
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function getAncestorProp(type, memo, prop, propsById){
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if (memo.ancestors && memo.ancestors['#' + type]){
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return memo.ancestors['#' + type];
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} else {
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var ancestorProp = findAncestorByType( prop, type, propsById );
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if (!memo.ancestors) memo.ancestors = {};
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memo.ancestors['#' + type] = ancestorProp;
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return ancestorProp;
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}
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}
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