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export const description = `Validation tests for comments`;
import { makeTestGroup } from '../../../../common/framework/test_group.js';
import { ShaderValidationTest } from '../shader_validation_test.js';
export const g = makeTestGroup(ShaderValidationTest);
g.test('comments')
.desc(`Test that valid comments are handled correctly, including nesting.`)
.fn(t => {
const code = `
/**
* Here is my shader.
*
* /* I can nest /**/ comments. */
* // I can nest line comments too.
**/
@fragment // This is the stage
fn main(/*
no
parameters
*/) -> @location(0) vec4<f32> {
return/*block_comments_delimit_tokens*/vec4<f32>(.4, .2, .3, .1);
}/* terminated block comments are OK at EOF...*/`;
t.expectCompileResult(true, code);
});
g.test('line_comment_eof')
.desc(`Test that line comments can come at EOF.`)
.fn(t => {
const code = `
@fragment
fn main() -> @location(0) vec4<f32> {
return vec4<f32>(.4, .2, .3, .1);
}
// line comments are OK at EOF...`;
t.expectCompileResult(true, code);
});
g.test('line_comment_terminators')
.desc(`Test that line comments are terminated by any blankspace other than space and \t`)
.params(u =>
u
.combine('blankspace', [
[' ', 'space'],
['\t', 'tab'],
['\u000a', 'line_feed'],
['\u000b', 'vertical_tab'],
['\u000c', 'form_feed'],
['\u000d', 'carriage_return'],
['\u000d\u000a', 'carriage_return_line_feed'],
['\u0085', 'next_line'],
['\u2028', 'line_separator'],
['\u2029', 'paragraph_separator'],
])
.beginSubcases()
)
.fn(t => {
const code = `// Line comment${t.params.blankspace[0]}const invalid_outside_comment = should_fail`;
t.expectCompileResult([' ', '\t'].includes(t.params.blankspace[0]), code);
});
g.test('unterminated_block_comment')
.desc(`Test that unterminated block comments cause an error`)
.params(u => u.combine('terminated', [true, false]).beginSubcases())
.fn(t => {
const code = `
/**
* Unterminated block comment.
*
${t.params.terminated ? '*/' : ''}`;
t.expectCompileResult(t.params.terminated, code);
});
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