Function MapMacroExpander

cel/macro.go:268–278

MapMacroExpander expands the input call arguments into a comprehension that transforms each element in the input to produce an output list. There are two call patterns supported by map: .map( , ) .map( , , ) In the second fo

(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr)

// In the second form only iterVar values which return true when provided to the predicate expression
// are transformed.
func MapMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error) {
	ph, err := toParserHelper(meh)
	if err != nil {
		return nil, err
	}
	out, err := parser.MakeMap(ph, mustAdaptToExpr(target), mustAdaptToExprs(args))
	if err != nil {
		return nil, err
	}
	return adaptToProto(out)
}

// FilterMacroExpander expands the input call arguments into a comprehension which produces a list which contains
// only elements which match the provided predicate expression: