| MAT4X4 { $$ = ast_mat4; }
| SAMPLER1D { $$ = ast_sampler1d; }
| SAMPLER2D { $$ = ast_sampler2d; }
+ | SAMPLER2DRECT { $$ = ast_sampler2drect; }
| SAMPLER3D { $$ = ast_sampler3d; }
| SAMPLERCUBE { $$ = ast_samplercube; }
| SAMPLER1DSHADOW { $$ = ast_sampler1dshadow; }
| SAMPLER2DSHADOW { $$ = ast_sampler2dshadow; }
+ | SAMPLER2DRECTSHADOW { $$ = ast_sampler2drectshadow; }
| SAMPLERCUBESHADOW { $$ = ast_samplercubeshadow; }
| SAMPLER1DARRAY { $$ = ast_sampler1darray; }
| SAMPLER2DARRAY { $$ = ast_sampler2darray; }