[Piglit] [PATCH] glsl-1.50: test that interface blocks may not be initialized

[Matt Turner]

On Wed, Jul 24, 2013 at 2:57 PM, Matt Turner <mattst88 at gmail.com> wrote:
> ---
>  .../compiler/interface-blocks-no-initializer.vert  | 23 ++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>  create mode 100644 tests/spec/glsl-1.50/compiler/interface-blocks-no-initializer.vert
>
> diff --git a/tests/spec/glsl-1.50/compiler/interface-blocks-no-initializer.vert b/tests/spec/glsl-1.50/compiler/interface-blocks-no-initializer.vert
> new file mode 100644
> index 0000000..172b7b2
> --- /dev/null
> +++ b/tests/spec/glsl-1.50/compiler/interface-blocks-no-initializer.vert
> @@ -0,0 +1,23 @@
> +// [config]
> +// expect_result: fail
> +// glsl_version: 1.50
> +// [end config]
> +//
> +// GLSLangSpec.1.50.11, 4.3.7 Interface Blocks:
> +// "Types and declarators are the same as for other input, output, and uniform
> +//  variable declarations outside blocks, with these exceptions:
> +//    • initializers are not allowed
> +//    • ..."
> +//
> +// Tests that an interface block name may not initialized.

On second reading, I think this bit of text is saying that something like

out block {
    float a = 1.0;
} inst;

isn't allowed. So, are initializers like what I used in this patch
allowed or disallowed? I don't see any text saying one way or the
other.