1 ((function sign 2 (signature float 3 (parameters 4 (declare (in) float x)) 5 ((return (expression float sign (var_ref x))))) 6 7 (signature vec2 8 (parameters 9 (declare (in) vec2 x)) 10 ((return (expression vec2 sign (var_ref x))))) 11 12 (signature vec3 13 (parameters 14 (declare (in) vec3 x)) 15 ((return (expression vec3 sign (var_ref x))))) 16 17 (signature vec4 18 (parameters 19 (declare (in) vec4 x)) 20 ((return (expression vec4 sign (var_ref x))))) 21 22 (signature int 23 (parameters 24 (declare (in) int x)) 25 ((return (expression int sign (var_ref x))))) 26 27 (signature ivec2 28 (parameters 29 (declare (in) ivec2 x)) 30 ((return (expression ivec2 sign (var_ref x))))) 31 32 (signature ivec3 33 (parameters 34 (declare (in) ivec3 x)) 35 ((return (expression ivec3 sign (var_ref x))))) 36 37 (signature ivec4 38 (parameters 39 (declare (in) ivec4 x)) 40 ((return (expression ivec4 sign (var_ref x))))) 41 )) 42 43