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export const description = `Validation tests for @builtin`;
import { makeTestGroup } from '../../../../common/framework/test_group.js';
import { ShaderValidationTest } from '../shader_validation_test.js';
export const g = makeTestGroup(ShaderValidationTest);
const kValidBuiltin = new Set([
`@builtin(position)`,
`@builtin(position,)`,
`@ \n builtin(position)`,
`@/^ comment ^/builtin/^ comment ^/\n\n(\t/^comment^/position/^comment^/)`,
]);
const kInvalidBuiltin = new Set([
`@abuiltin(position)`,
`@builtin`,
`@builtin()`,
`@builtin position`,
`@builtin position)`,
`@builtin(position`,
`@builtin(position, frag_depth)`,
`@builtin(identifier)`,
`@builtin(2)`,
]);
g.test('parse')
.desc(`Test that @builtin is parsed correctly.`)
.params(u => u.combine('builtin', new Set([...kValidBuiltin, ...kInvalidBuiltin])))
.fn(t => {
const v = t.params.builtin.replace(/\^/g, '*');
const code = `
@vertex
fn main() -> ${v} vec4<f32> {
return vec4<f32>(.4, .2, .3, .1);
}`;
t.expectCompileResult(kValidBuiltin.has(t.params.builtin), code);
});
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