SYS-REQ-115
(config Config, data []byte, setValue []byte, keys ...string)
| 1325 | |
| 1326 | // SYS-REQ-115 |
| 1327 | func setConfig(config Config, data []byte, setValue []byte, keys ...string) (value []byte, err error) { |
| 1328 | // ensure keys are set |
| 1329 | if len(keys) == 0 { |
| 1330 | return nil, KeyPathNotFoundError |
| 1331 | } |
| 1332 | |
| 1333 | _, _, startOffset, endOffset, err := internalGetConfig(config, data, keys...) |
| 1334 | if err != nil { |
| 1335 | if err != KeyPathNotFoundError { |
| 1336 | // problem parsing the data |
| 1337 | return nil, err |
| 1338 | } |
| 1339 | // full path doesnt exist |
| 1340 | // does any subpath exist? |
| 1341 | var depth int |
| 1342 | for i := range keys { |
| 1343 | _, _, start, end, sErr := internalGetConfig(config, data, keys[:i+1]...) |
| 1344 | if sErr != nil { |
| 1345 | break |
| 1346 | } else { |
| 1347 | endOffset = end |
| 1348 | startOffset = start |
| 1349 | depth++ |
| 1350 | } |
| 1351 | } |
| 1352 | comma := true |
| 1353 | object := false |
| 1354 | // KI-3: when the path's next component expects one container type but |
| 1355 | // the existing structure is the other (array-index [N] under an object, |
| 1356 | // or an object key under an array), auto-coerce the container to the |
| 1357 | // type expected by the path and proceed with fresh insertion. The |
| 1358 | // mismatched container is treated as if it needs to be (re)created, so |
| 1359 | // the output is always valid JSON. |
| 1360 | coerceTopLevel := false |
| 1361 | coerceStart := 0 |
| 1362 | if endOffset == -1 { |
| 1363 | firstToken := nextTokenConfig(config, data) |
| 1364 | if firstToken < 0 { |
| 1365 | return nil, KeyPathNotFoundError |
| 1366 | } |
| 1367 | pathIsIndex := len(keys[0]) > 0 && keys[0][0] == '[' |
| 1368 | // An empty trailing key component is the degenerate "no path |
| 1369 | // provided" case (SYS-REQ-111), not a real object key — it must |
| 1370 | // keep returning KeyPathNotFoundError on a non-object root, so it |
| 1371 | // is excluded from auto-coerce. |
| 1372 | pathIsObjectKey := len(keys[0]) > 0 && !pathIsIndex |
| 1373 | dataIsObject := data[firstToken] == '{' |
| 1374 | dataIsArray := data[firstToken] == '[' |
| 1375 | if (pathIsIndex && dataIsObject) || (pathIsObjectKey && dataIsArray) { |
| 1376 | // SYS-REQ-009: cross-type Set at the top level — replace the |
| 1377 | // mismatched container with a fresh container of the type the |
| 1378 | // path expects, then perform a fresh insertion. |
| 1379 | coerceTopLevel = true |
| 1380 | coerceStart = firstToken |
| 1381 | comma = false |
| 1382 | object = !pathIsIndex |
| 1383 | endOffset = lastToken(data) |
| 1384 | } else if !dataIsObject { |
no test coverage detected