function(block) {
      var ast = block[0];
      var _block = block.slice(1);
      var defines = this.defines;

      defines[ast.id] = _block;
    }
function(block) {
      var ast = block[0];
      var _block = block.slice(1);
      var defines = this.defines;

      defines[ast.id] = _block;
    }
function ( block ) { var ast = block [ 0 ] ; var _block = block . slice ( 1 ) ; var defines = this . defines ; defines [ ast . id ] = _block ; }
define
define