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fix: patch Prom anyOf serializers when interfaces extend Parsable #212

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SSharma-10 merged 1 commit into from
Oct 27, 2026
Merged

fix: patch Prom anyOf serializers when interfaces extend Parsable #212

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27 changes: 24 additions & 3 deletions scripts/postgen-inference.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -856,13 +856,30 @@ const serializationFixes = [
to: `writer.writeCollectionOfPrimitiveValues("input", embeddings_request.input)`,
label: "Embeddings_request.input",
},
{
// Insights PromQL anyOf arrays — Kiota emits writeObjectValue against T[] | U[] | …
from: /writer\.writeObjectValue(<[^>]*>)?\("result",\s*prom_query_data\.result,\s*serializeProm_query_data_result\)/g,
to: `writer.writeCollectionOfObjectValues("result", prom_query_data.result as any, serializeProm_query_data_result as any)`,
label: "Prom_query_data.result",
},
];

/** Rewrite writeObjectValue for props typed as Foo[] | Bar[] | … */
/** Rewrite writeObjectValue for props typed as Foo[] | Bar[] | … (incl. `extends Parsable`). */
function patchAnyOfArrayWriteObjectValues(src) {
const arrayUnionFields = new Set();
// Resolve `export type Alias = A[] | B[] | …` so `prop?: Alias | null` is detected.
const arrayUnionAliases = new Set();
const typeAliasRe = /export type (\w+)\s*=\s*([^;]+);/g;
let tm;
while ((tm = typeAliasRe.exec(src)) !== null) {
const type = tm[2].replace(/\s+/g, " ").trim();
const arrayMarks = type.match(/\[\]/g);
if (arrayMarks && arrayMarks.length >= 2 && type.includes("|")) {
arrayUnionAliases.add(tm[1]);
}
}

const ifaceRe = /export interface (\w+) \{([^]*?)\}/g;
const ifaceRe = /export interface (\w+)(?:\s+extends\s+[^{]+)?\s*\{([^]*?)\}/g;
let im;
while ((im = ifaceRe.exec(src)) !== null) {
const ifaceName = im[1];
Expand All @@ -874,7 +891,11 @@ function patchAnyOfArrayWriteObjectValues(src) {
const prop = pm[1];
const type = pm[2].replace(/\s+/g, " ").trim();
const arrayMarks = type.match(/\[\]/g);
if (arrayMarks && arrayMarks.length >= 2 && type.includes("|")) {
const isInlineArrayUnion = arrayMarks && arrayMarks.length >= 2 && type.includes("|");
const isAliasArrayUnion = [...arrayUnionAliases].some(
(alias) => new RegExp(`(?:^|\\W)${alias}(?:\\W|$)`).test(type),
);
if (isInlineArrayUnion || isAliasArrayUnion) {
arrayUnionFields.add(`${varName}.${prop}`);
}
}
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