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feat(ivy): compiler support to generate QUERY_READ_FROM_NODE calls (#26171)

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PR Close #26171
This commit is contained in:
Andrew Kushnir
2018-09-28 17:20:43 -07:00
committed by Alex Rickabaugh
parent d216a46412
commit cb59d87489
8 changed files with 305 additions and 130 deletions
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11
packages/compiler/src/render3/view/util.ts
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@ -104,8 +104,15 @@ export function trimTrailingNulls(parameters: o.Expression[]): o.Expression[] {
export function getQueryPredicate(
query: R3QueryMetadata, constantPool: ConstantPool): o.Expression {
if (Array.isArray(query.predicate)) {
return constantPool.getConstLiteral(
o.literalArr(query.predicate.map(selector => o.literal(selector) as o.Expression)));
let predicate: o.Expression[] = [];
query.predicate.forEach((selector: string): void => {
// Each item in predicates array may contain strings with comma-separated refs
// (for ex. 'ref, ref1, ..., refN'), thus we extract individual refs and store them
// as separate array entities
const selectors = selector.split(',').map(token => o.literal(token.trim()));
predicate.push(...selectors);
});
return constantPool.getConstLiteral(o.literalArr(predicate));
} else {
return query.predicate;
}