class Rouge::Lexers::Glsl

def self.builtins
  @builtins ||= Set.new %w(
    gl_VertexID gl_InstanceID gl_PerVertex gl_Position gl_PointSize gl_ClipDistance
    gl_PrimitiveIDIn gl_InvocationID gl_PrimitiveID gl_Layer gl_ViewportIndex
    gl_MaxPatchVertices gl_PatchVerticesIn gl_TessLevelOuter gl_TessLevelInner
    gl_TessCoord gl_FragCoord gl_FrontFacing gl_PointCoord gl_SampleID gl_SamplePosition
    gl_FragColor gl_FragData gl_MaxDrawBuffers gl_FragDepth gl_SampleMask
    gl_ClipVertex gl_FrontColor gl_BackColor gl_FrontSecondaryColor gl_BackSecondaryColor
    gl_TexCoord gl_FogFragCoord gl_Color gl_SecondaryColor gl_Normal gl_VertexID
    gl_MultiTexCord0 gl_MultiTexCord1 gl_MultiTexCord2 gl_MultiTexCord3
    gl_MultiTexCord4 gl_MultiTexCord5 gl_MultiTexCord6 gl_MultiTexCord7
    gl_FogCoord gl_MaxVertexAttribs gl_MaxVertexUniformComponents
    gl_MaxVaryingFloats gl_MaxVaryingComponents gl_MaxVertexOutputComponents
    gl_MaxGeometryInputComponents gl_MaxGeometryOutputComponents
    gl_MaxFragmentInputComponents gl_MaxVertexTextureImageUnits
    gl_MaxCombinedTextureImageUnits gl_MaxTextureImageUnits
    gl_MaxFragmentUniformComponents gl_MaxClipDistances
    gl_MaxGeometryTextureImageUnits gl_MaxGeometryUniformComponents
    gl_MaxGeometryVaryingComponents gl_MaxTessControlInputComponents
    gl_MaxTessControlOutputComponents gl_MaxTessControlTextureImageUnits
    gl_MaxTessControlUniformComponents gl_MaxTessControlTotalOutputComponents
    gl_MaxTessEvaluationInputComponents gl_MaxTessEvaluationOutputComponents
    gl_MaxTessEvaluationTextureImageUnits gl_MaxTessEvaluationUniformComponents
    gl_MaxTessPatchComponents gl_MaxTessGenLevel gl_MaxViewports
    gl_MaxVertexUniformVectors gl_MaxFragmentUniformVectors gl_MaxVaryingVectors
    gl_MaxTextureUnits gl_MaxTextureCoords gl_MaxClipPlanes gl_DepthRange
    gl_DepthRangeParameters gl_ModelViewMatrix gl_ProjectionMatrix
    gl_ModelViewProjectionMatrix gl_TextureMatrix gl_NormalMatrix
    gl_ModelViewMatrixInverse gl_ProjectionMatrixInverse gl_ModelViewProjectionMatrixInverse
    gl_TextureMatrixInverse gl_ModelViewMatrixTranspose
    gl_ModelViewProjectionMatrixTranspose gl_TextureMatrixTranspose
    gl_ModelViewMatrixInverseTranspose gl_ProjectionMatrixInverseTranspose
    gl_ModelViewProjectionMatrixInverseTranspose
    gl_TextureMatrixInverseTranspose gl_NormalScale gl_ClipPlane gl_PointParameters
    gl_Point gl_MaterialParameters gl_FrontMaterial gl_BackMaterial
    gl_LightSourceParameters gl_LightSource gl_MaxLights gl_LightModelParameters
    gl_LightModel gl_LightModelProducts gl_FrontLightModelProduct
    gl_BackLightModelProduct gl_LightProducts gl_FrontLightProduct
    gl_BackLightProduct gl_TextureEnvColor gl_EyePlaneS gl_EyePlaneT gl_EyePlaneR
    gl_EyePlaneQ gl_ObjectPlaneS gl_ObjectPlaneT gl_ObjectPlaneR gl_ObjectPlaneQ
    gl_FogParameters gl_Fog
  )
end

def self.keywords
  @keywords ||= Set.new %w(
    attribute const uniform varying
    layout
    centroid flat smooth noperspective
    patch sample
    break continue do for while switch case default
    if else
    subroutine
    in out inout
    invariant
    discard return struct precision
  )
end

def self.keywords_type
  @keywords_type ||= Set.new %w(
    float double int void bool true false
    lowp mediump highp
    mat2 mat3 mat4 dmat2 dmat3 dmat4
    mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4
    mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4
    mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4
    vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4
    uint uvec2 uvec3 uvec4
    sampler1D sampler2D sampler3D samplerCube
    sampler1DShadow sampler2DShadow samplerCubeShadow
    sampler1DArray sampler2DArray
    sampler1DArrayShadow sampler2DArrayShadow
    isampler1D isampler2D isampler3D isamplerCube
    isampler1DArray isampler2DArray
    usampler1D usampler2D usampler3D usamplerCube
    usampler1DArray usampler2DArray
    sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect
    samplerBuffer isamplerBuffer usamplerBuffer
    sampler2DMS isampler2DMS usampler2DMS
    sampler2DMSArray isampler2DMSArray usampler2DMSArray
    samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray
  )
end

def self.reserved
  @reserved ||= Set.new %w(
    common partition active
    asm
    class union enum typedef template this packed
    goto
    inline noinline volatile public static extern external interface
    long short half fixed unsigned superp
    input output
    hvec2 hvec3 hvec4 fvec2 fvec3 fvec4
    sampler3DRect
    filter
    image1D image2D image3D imageCube
    iimage1D iimage2D iimage3D iimageCube
    uimage1D uimage2D uimage3D uimageCube
    image1DArray image2DArray
    iimage1DArray iimage2DArray uimage1DArray uimage2DArray
    image1DShadow image2DShadow
    image1DArrayShadow image2DArrayShadow
    imageBuffer iimageBuffer uimageBuffer
    sizeof cast
    namespace using
    row_major
  )
end