// some other code here
int test = 0;

{$CLASS SimpleClass}
    {$UNIFORM 'sampler2D' 'uTexture0'}
    {$UNIFORM 'sampler2D' 'uTexture1'}
    {$UNIFORM 'vec4'      'uColor'}
    
    {$MAIN}
        gl_FragColor = 
            texture2D(uTexture0, texCoord) * 
            texture2D(uTexture1, texCoord) *
            uColor;
    {$END}
{$END}

// and some more code here
int fuu = 1;