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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "go/token" | ||
| "strings" | ||
|
|
||
| "golang.org/x/tools/go/analysis" | ||
| ) | ||
|
|
||
| // Change represents a set of edits to be applied to a set of files. | ||
| type Change struct { | ||
| AnalysisName string `json:"analysis_name"` | ||
| FileToEdits map[string][]Edit `json:"file_to_edits"` | ||
| } | ||
|
|
||
| // NewChange creates a new Change object. | ||
| func NewChange() *Change { | ||
| return &Change{ | ||
| FileToEdits: make(map[string][]Edit), | ||
| } | ||
| } | ||
|
|
||
| // SetAnalysisName sets the name of the analysis that produced the change. | ||
| func (c *Change) SetAnalysisName(name string) { | ||
| c.AnalysisName = name | ||
| } | ||
|
|
||
| // AddEdit adds an edit to the change. | ||
| func (c *Change) AddEdit(file string, edit Edit) { | ||
| c.FileToEdits[file] = append(c.FileToEdits[file], edit) | ||
| } | ||
|
|
||
| // BuildFromDiagnostics builds a Change from a set of diagnostics. | ||
| // Unlike Diagnostic, Change is independent of the FileSet given it uses perf-file offsets instead of token.Pos. | ||
| // This allows Change to be used in contexts where the FileSet is not available, e.g., it remains applicable after it is saved to disk and loaded back. | ||
| // See https://github.com/golang/tools/blob/master/go/analysis/diagnostic.go for details. | ||
| func (c *Change) BuildFromDiagnostics(diagnostics []analysis.Diagnostic, fileSet *token.FileSet) error { | ||
| for _, diag := range diagnostics { | ||
| for _, sf := range diag.SuggestedFixes { | ||
| for _, edit := range sf.TextEdits { | ||
| file := fileSet.File(edit.Pos) | ||
|
|
||
| if file == nil { | ||
| return fmt.Errorf("invalid fix: missing file info for pos (%v)", edit.Pos) | ||
| } | ||
| if edit.Pos > edit.End { | ||
| return fmt.Errorf("invalid fix: pos (%v) > end (%v)", edit.Pos, edit.End) | ||
| } | ||
| if eof := token.Pos(file.Base() + file.Size()); edit.End > eof { | ||
| return fmt.Errorf("invalid fix: end (%v) past end of file (%v)", edit.End, eof) | ||
| } | ||
| edit := Edit{Start: file.Offset(edit.Pos), End: file.Offset(edit.End), New: string(edit.NewText)} | ||
| fileRelativePath := file.Name() | ||
| c.AddEdit(fileRelativePath, edit) | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // MergeChanges merges multiple changes into a single change. | ||
| func MergeChanges(changes []Change) Change { | ||
| mergedChange := NewChange() // Create a new Change object for the result | ||
| analysisNames := []string{} // no deduplication needed | ||
|
|
||
| for _, change := range changes { | ||
| if change.AnalysisName != "" { | ||
| analysisNames = append(analysisNames, change.AnalysisName) | ||
| } | ||
| for file, edits := range change.FileToEdits { | ||
| // If the file already exists in the merged change, append the edits | ||
| if existingEdits, found := mergedChange.FileToEdits[file]; found { | ||
| // checking the overlapping of edits happens in edit.go during the ApplyEdits function. | ||
| // so we don't need to check it here. | ||
| mergedChange.FileToEdits[file] = append(existingEdits, edits...) | ||
| } else { | ||
| // Otherwise, just set the file and edits | ||
| mergedChange.FileToEdits[file] = edits | ||
| } | ||
| } | ||
| } | ||
| mergedChange.AnalysisName = strings.Join(analysisNames, ",") | ||
| return *mergedChange | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "io/ioutil" | ||
| // "log" | ||
| ) | ||
|
|
||
| // SaveToFile saves the Change struct to a JSON file. | ||
| func SaveToFile(filename string, change Change) error { | ||
| // Serialize Change to JSON | ||
| jsonData, err := json.MarshalIndent(change, "", " ") | ||
| if err != nil { | ||
| return fmt.Errorf("error serializing to JSON: %v", err) | ||
| } | ||
| // log.Fatalf("!!!!: %v", change) | ||
| // Write the JSON data to the file | ||
| err = ioutil.WriteFile(filename, jsonData, 0644) | ||
| if err != nil { | ||
| return fmt.Errorf("error writing to file: %v", err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // LoadFromFile loads the Change struct from a JSON file. | ||
| func LoadFromFile(filename string) (Change, error) { | ||
| var change Change | ||
|
|
||
| // Read the JSON file | ||
| jsonData, err := ioutil.ReadFile(filename) | ||
| if err != nil { | ||
| return change, fmt.Errorf("error reading file: %v", err) | ||
| } | ||
|
|
||
| // Deserialize JSON data into the Change struct | ||
| err = json.Unmarshal(jsonData, &change) | ||
| if err != nil { | ||
| return change, fmt.Errorf("error deserializing JSON: %v", err) | ||
| } | ||
|
|
||
| return change, nil | ||
| } |
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