# File lib/rouge/lexers/glsl.rb, line 38
      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