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Improve the promise-caching in the PDFDocument.fieldObjects getter
After PR 18845 we're accessing this getter more, hence it seems like a good idea to ensure that the initial `formInfo` access is covered as well. While unlikely to be a problem in practice, at least theoretically that data may not be available and the code in `fieldObjects` could thus currently be *unintentionally* invoked more than once.
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@ -1871,14 +1871,17 @@ class PDFDocument {
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}
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get fieldObjects() {
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if (!this.formInfo.hasFields) {
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return shadow(this, "fieldObjects", Promise.resolve(null));
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const promise = this.pdfManager
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.ensureDoc("formInfo")
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.then(async formInfo => {
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if (!formInfo.hasFields) {
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return null;
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}
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const promise = Promise.all([
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const [annotationGlobals, acroForm] = await Promise.all([
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this.pdfManager.ensureDoc("annotationGlobals"),
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this.pdfManager.ensureCatalog("acroForm"),
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]).then(async ([annotationGlobals, acroForm]) => {
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]);
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if (!annotationGlobals) {
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return null;
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}
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