SYS-REQ-115
(config Config, data []byte, setValue []byte, keys ...string)
| 1398 | |
| 1399 | // SYS-REQ-115 |
| 1400 | func setConfig(config Config, data []byte, setValue []byte, keys ...string) (value []byte, err error) { |
| 1401 | // ensure keys are set |
| 1402 | if len(keys) == 0 { |
| 1403 | return nil, KeyPathNotFoundError |
| 1404 | } |
| 1405 | |
| 1406 | _, _, startOffset, endOffset, err := internalGetConfig(config, data, keys...) |
| 1407 | if err != nil { |
| 1408 | if err != KeyPathNotFoundError { |
| 1409 | // problem parsing the data |
| 1410 | return nil, err |
| 1411 | } |
| 1412 | // full path doesnt exist |
| 1413 | // does any subpath exist? |
| 1414 | var depth int |
| 1415 | for i := range keys { |
| 1416 | _, _, start, end, sErr := internalGetConfig(config, data, keys[:i+1]...) |
| 1417 | if sErr != nil { |
| 1418 | break |
| 1419 | } else { |
| 1420 | endOffset = end |
| 1421 | startOffset = start |
| 1422 | depth++ |
| 1423 | } |
| 1424 | } |
| 1425 | comma := true |
| 1426 | object := false |
| 1427 | // KI-3: when the path's next component expects one container type but |
| 1428 | // the existing structure is the other (array-index [N] under an object, |
| 1429 | // or an object key under an array), auto-coerce the container to the |
| 1430 | // type expected by the path and proceed with fresh insertion. The |
| 1431 | // mismatched container is treated as if it needs to be (re)created, so |
| 1432 | // the output is always valid JSON. |
| 1433 | coerceTopLevel := false |
| 1434 | coerceStart := 0 |
| 1435 | topLevelArrayAppend := false |
| 1436 | topLevelArrayEmpty := false |
| 1437 | topLevelArrayStart := 0 |
| 1438 | topLevelArrayInsertOffset := 0 |
| 1439 | if endOffset == -1 { |
| 1440 | firstToken := nextTokenConfig(config, data) |
| 1441 | if firstToken < 0 { |
| 1442 | return nil, KeyPathNotFoundError |
| 1443 | } |
| 1444 | pathIsIndex := len(keys[0]) > 0 && keys[0][0] == '[' |
| 1445 | // An empty trailing key component is the degenerate "no path |
| 1446 | // provided" case (SYS-REQ-111), not a real object key — it must |
| 1447 | // keep returning KeyPathNotFoundError on a non-object root, so it |
| 1448 | // is excluded from auto-coerce. |
| 1449 | pathIsObjectKey := len(keys[0]) > 0 && !pathIsIndex |
| 1450 | dataIsObject := data[firstToken] == '{' |
| 1451 | dataIsArray := data[firstToken] == '[' |
| 1452 | if (pathIsIndex && dataIsObject) || (pathIsObjectKey && dataIsArray) { |
| 1453 | // SYS-REQ-009: cross-type Set at the top level — replace the |
| 1454 | // mismatched container with a fresh container of the type the |
| 1455 | // path expects, then perform a fresh insertion. |
| 1456 | coerceTopLevel = true |
| 1457 | coerceStart = firstToken |
no test coverage detected