Open
Bug 1933558
Opened 1 year ago
Updated 1 year ago
`Cannot coerce default dictionary value to type USVStringDoubleRecord.`
Categories
(Core :: DOM: Bindings (WebIDL), task)
Core
DOM: Bindings (WebIDL)
Tracking
()
NEW
People
(Reporter: ErichDonGubler, Unassigned)
References
(Blocks 2 open bugs)
Details
While working on bug 1933548, I discovered that setting a default value of {} for a record<USVString, GPUPipelineConstantValue> dictionary field throws the following error during IDL bindings generation:
0:29.47 WebIDL.WebIDLError: error: Cannot coerce default dictionary value to type USVStringDoubleRecord., <snip>/dom/webidl/WebGPU.webidl line 662:48
This seems like something that should be permitted; an empty dictionary should simply coerce to an empty record, right? 🤔
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Updated•1 year ago
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Type: defect → task
{} is for dictionaries per the spec: https://webidl.spec.whatwg.org/#idl-operations
Optional argument default values can also be specified using the two token value {}, which represents a default-initialized (as if from ES null or an object with no properties) dictionary value.
I don't think there's a default value syntax available for records, maybe worth filing a spec bug?
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Description
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