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conformance · v142

v142 · webgpu-primitive-index-feature — conformance probe

6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://gpuweb.github.io/gpuweb/ chromestatus: #6467722716250112 generated 2026-06-01T08:13:10Z by conformance-author-v1-subagent
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id contract kind verdict detail
webgpu-on-navigator navigator.gpu is the entry point for WebGPU; primitive_index rides on this surface. exists
request-adapter-is-function navigator.gpu.requestAdapter is a function — the surface used to inspect which optional features (including primitive-index) the device supports. script
gpu-adapter-exposes-features GPUAdapter exposes a `features` GPUSupportedFeatures set, which is where the 'primitive-index' feature string appears when supported. script
primitive-index-feature-name-introspectable Userland can call features.has('primitive-index'); calling has() returns a boolean without throwing whether or not the feature is present. spec ↗ script
request-device-with-primitive-index-rejects-when-unsupported Requesting a device with requiredFeatures=['primitive-index'] from an adapter that does not list it rejects. script
wgsl-source-string-tolerated GPUShaderModule descriptor accepts a WGSL string referencing @builtin(primitive_index); device.createShaderModule should accept the source even if compilation later errors when the feature is missing. script