[require]
options: backcompat


[pixel shader fail(sm>=6)]
sampler2D sam = sampler_state
{
    texture = NULL;
    mipfilter = LINEAR;
};

float4 main(): sv_target
{
    return tex2D(sam, float2(0, 0));
}


[pixel shader fail]
float4 main(): sv_target
{
    sampler2D sam = sampler_state // Not allowed inside a function.
    {
        texture = NULL;
        mipfilter = LINEAR;
    };

    return 0;
}

[pixel shader fail]
sampler sam;

float4 main(): sv_target
{
    sampler_state
    {
        foo = BAR;
        bar = FOO;
    };
    return tex2D(sam, float2(0, 0));
}

[pixel shader fail(sm<6)]
// cannot implicitly convert.
float4 f = sampler_state
{
    texture = NULL;
    mipfilter = LINEAR;
};

float4 main(): sv_target
{
    return 0;
}


[pixel shader fail(sm>=6)]
sampler sam[2] =
{
    sampler_state
    {
        texture = NULL;
        mipfilter = LINEAR;
    },
    sampler_state
    {
        texture = NULL;
        mipfilter = LINEAR;
    }
};

float4 main(): sv_target
{
    return tex2D(sam[1], float2(0, 0));
}


[pixel shader fail]
sampler sam[2] =
{
    sampler_state
    {
        texture = NULL;
        mipfilter = LINEAR;
    },
};

float4 main(): sv_target { return 0; }


[pixel shader]
sampler sam
{
    FOO = sampler_state {};
};

float4 main(): sv_target { return 0; }


[pixel shader fail]
Texture2D tex;

float4 main(): sv_target
{
    return tex.Sample(sampler_state {}, float2(0, 0));
}


[pixel shader fail(sm>=6)]
sampler sam = sampler_state
{
    texture = NULL;
    mipfilter = LINEAR;
};

float4 main(): sv_target
{
    sampler sam2 = sam; // pass around.

    return tex2D(sam2, float2(0, 0));
}


[pixel shader fail(sm>=6)]
sampler sam = sampler_state
{
    foo = BAR;
    bar = FOO;
    mipfilter = PLACEHOLDER;
};

float4 main(): sv_target
{
    return tex2D(sam, float2(0, 0));
}


[pixel shader fail(sm>=6)]
// default value initializers make it more permissive but if types don't match
// then the whole initializer is discarded.
float4 f = {
    sampler_state
    {
        foo = BAR;
        bar = FOO;
    },
    1, 2, 3
};

float4 main(): sv_target
{
    return 0;
}


[pixel shader fail]
sampler sam {} = sampler_state {};

float4 main() : sv_target { return 0; }


% This fails because of invalid types.
[pixel shader fail]
sampler sam = 1 + sampler_state {};

float4 main() : sv_target { return 0; }


[pixel shader fail]
sampler sam;
sampler_state {} = sam;

float4 main() : sv_target
{
    return 0;
}

[pixel shader fail]
sampler_state {};

float4 main() : sv_target
{
    return 0;
}


[require]
shader model < 6.0
options: backcompat

[pixel shader fail]
// Cannot implicitly convert.
// Causes segfault in DXC
Texture2D tex = sampler_state
{
    foo = BAR;
    bar = FOO;
};
sampler sam;

float4 main(): sv_target
{
    return tex2D(sam, float2(0, 0));
}


[require]
shader model >= 5.0
options: backcompat

[pixel shader fail(sm>=6)]
// Default values and sample_state work.
// Requires sm5.

struct
{
    float4 f;
    sampler sam;
    float2 g;
} apple = {
    1, 2, 3, 4,
    sampler_state
    {
        texture = NULL;
        mipfilter = LINEAR;
    },
    1, 1,
};
Texture2D tex;

float4 main(): sv_target
{
    return tex.Sample(apple.sam, apple.g);
}