ToAST converts a CheckedExpr protobuf to an AST instance.
(checked *exprpb.CheckedExpr)
| 76 | |
| 77 | // ToAST converts a CheckedExpr protobuf to an AST instance. |
| 78 | func ToAST(checked *exprpb.CheckedExpr) (*AST, error) { |
| 79 | refMap := make(map[int64]*ReferenceInfo, len(checked.GetReferenceMap())) |
| 80 | for id, ref := range checked.GetReferenceMap() { |
| 81 | r, err := ProtoToReferenceInfo(ref) |
| 82 | if err != nil { |
| 83 | return nil, err |
| 84 | } |
| 85 | refMap[id] = r |
| 86 | } |
| 87 | typeMap := make(map[int64]*types.Type, len(checked.GetTypeMap())) |
| 88 | for id, typ := range checked.GetTypeMap() { |
| 89 | t, err := types.ExprTypeToType(typ) |
| 90 | if err != nil { |
| 91 | return nil, err |
| 92 | } |
| 93 | typeMap[id] = t |
| 94 | } |
| 95 | info, err := ProtoToSourceInfo(checked.GetSourceInfo()) |
| 96 | if err != nil { |
| 97 | return nil, err |
| 98 | } |
| 99 | root, err := ProtoToExpr(checked.GetExpr()) |
| 100 | if err != nil { |
| 101 | return nil, err |
| 102 | } |
| 103 | ast := NewCheckedAST(NewAST(root, info), typeMap, refMap) |
| 104 | return ast, nil |
| 105 | } |
| 106 | |
| 107 | // ProtoToExpr converts a protobuf Expr value to an ast.Expr value. |
| 108 | func ProtoToExpr(e *exprpb.Expr) (Expr, error) { |