Function ExprToProto

common/ast/conversion.go:282–312

ExprToProto serializes an ast.Expr value to a protobuf Expr representation.

(e Expr)

// ExprToProto serializes an ast.Expr value to a protobuf Expr representation.
func ExprToProto(e Expr) (*exprpb.Expr, error) {
	if e == nil {
		return &exprpb.Expr{}, nil
	}
	switch e.Kind() {
	case CallKind:
		return protoCall(e.ID(), e.AsCall())
	case ComprehensionKind:
		return protoComprehension(e.ID(), e.AsComprehension())
	case IdentKind:
		return protoIdent(e.ID(), e.AsIdent())
	case ListKind:
		return protoList(e.ID(), e.AsList())
	case LiteralKind:
		return protoLiteral(e.ID(), e.AsLiteral())
	case MapKind:
		return protoMap(e.ID(), e.AsMap())
	case SelectKind:
		return protoSelect(e.ID(), e.AsSelect())
	case StructKind:
		return protoStruct(e.ID(), e.AsStruct())
	case UnspecifiedExprKind:
		// Handle the case where a macro reference may be getting translated.
		// A nested macro 'pointer' is a non-zero expression id with no kind set.
		if e.ID() != 0 {
			return &exprpb.Expr{Id: e.ID()}, nil
		}
		return &exprpb.Expr{}, nil
	}
	return nil, fmt.Errorf("unsupported expr kind: %v", e)
}

// EntryExprToProto converts an ast.EntryExpr to a protobuf CreateStruct entry
func EntryExprToProto(e EntryExpr) (*exprpb.Expr_CreateStruct_Entry, error) {