cloudflare/pint
Publicmirrored from https://github.com/cloudflare/pintAvailable
internal/diags/problems.go
139lines · modecode
| 1 | package diags |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "slices" |
| 6 | "strings" |
| 7 | |
| 8 | "github.com/cloudflare/pint/internal/output" |
| 9 | ) |
| 10 | |
| 11 | func countDigits(n int) (c int) { |
| 12 | for n > 0 { |
| 13 | n /= 10 |
| 14 | c++ |
| 15 | } |
| 16 | return c |
| 17 | } |
| 18 | |
| 19 | type Diagnostic struct { |
| 20 | Message string |
| 21 | Pos PositionRanges |
| 22 | FirstColumn int // 1-indexed |
| 23 | LastColumn int // 1-indexed |
| 24 | } |
| 25 | |
| 26 | func lineCoverage(diags []Diagnostic) (lines []int) { |
| 27 | for _, diag := range diags { |
| 28 | for _, pos := range diag.Pos { |
| 29 | if !slices.Contains(lines, pos.Line) { |
| 30 | lines = append(lines, pos.Line) |
| 31 | } |
| 32 | } |
| 33 | } |
| 34 | slices.Sort(lines) |
| 35 | return lines |
| 36 | } |
| 37 | |
| 38 | func InjectDiagnostics(content string, diags []Diagnostic, color output.Color) string { |
| 39 | lines := lineCoverage(diags) |
| 40 | lastLine := slices.Max(lines) |
| 41 | |
| 42 | diagPositions := make([]PositionRanges, len(diags)) |
| 43 | for i, diag := range diags { |
| 44 | dl := diag.Pos.Len() |
| 45 | diagPositions[i] = readRange( |
| 46 | min(diag.FirstColumn, dl), |
| 47 | min(diag.LastColumn, dl), |
| 48 | diag.Pos, |
| 49 | ) |
| 50 | } |
| 51 | |
| 52 | var buf strings.Builder |
| 53 | nextLine := make([]strings.Builder, len(diags)) |
| 54 | needsNextLine := make([]bool, len(diags)) |
| 55 | |
| 56 | disablePoints := make([]bool, len(diags)) |
| 57 | for i, a := range diags { |
| 58 | for j := range i { |
| 59 | b := diags[j] |
| 60 | if a.FirstColumn == b.FirstColumn && a.LastColumn == b.LastColumn { |
| 61 | disablePoints[i] = true |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | digits := countDigits(lastLine) |
| 67 | nrFmt := fmt.Sprintf("%%%dd", digits) |
| 68 | |
| 69 | var lastWriteLine int |
| 70 | for lineIndex, line := range strings.Split(content, "\n") { |
| 71 | |
| 72 | if lineIndex+1 > lastLine { |
| 73 | break |
| 74 | } |
| 75 | if !slices.Contains(lines, lineIndex+1) { |
| 76 | continue |
| 77 | } |
| 78 | |
| 79 | for i := range diags { |
| 80 | needsNextLine[i] = false |
| 81 | if lineIndex+1 == diagPositions[i].Lines().Last { |
| 82 | needsNextLine[i] = true |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | prefix := fmt.Sprintf(nrFmt+" | ", lineIndex+1) |
| 87 | |
| 88 | if lastWriteLine > 0 && lineIndex+1-lastWriteLine > 1 { |
| 89 | buf.WriteString(output.MaybeColor(output.White, color == output.None, strings.Repeat(" ", digits))) |
| 90 | buf.WriteString(" | [...]\n") |
| 91 | } |
| 92 | lastWriteLine = lineIndex + 1 |
| 93 | |
| 94 | buf.WriteString(output.MaybeColor(output.White, color == output.None, prefix)) |
| 95 | for i, ok := range needsNextLine { |
| 96 | if ok { |
| 97 | nextLine[i].WriteString(strings.Repeat(" ", digits+3)) |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | for columnIndex, r := range line { |
| 102 | buf.WriteRune(r) |
| 103 | |
| 104 | for i, ok := range needsNextLine { |
| 105 | if !ok { |
| 106 | continue |
| 107 | } |
| 108 | for _, pos := range diagPositions[i] { |
| 109 | if pos.Line != lineIndex+1 { |
| 110 | continue |
| 111 | } |
| 112 | before := pos.FirstColumn > columnIndex+1 |
| 113 | inside := pos.FirstColumn <= columnIndex+1 && pos.LastColumn >= columnIndex+1 |
| 114 | switch { |
| 115 | case before: |
| 116 | nextLine[i].WriteRune(' ') |
| 117 | case inside && disablePoints[i]: |
| 118 | nextLine[i].WriteRune(' ') |
| 119 | case inside && !disablePoints[i]: |
| 120 | nextLine[i].WriteRune('^') |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | } |
| 125 | buf.WriteRune('\n') |
| 126 | |
| 127 | for i, ok := range needsNextLine { |
| 128 | if ok { |
| 129 | buf.WriteString(output.MaybeColor(color, color == output.None, nextLine[i].String())) |
| 130 | buf.WriteRune(' ') |
| 131 | buf.WriteString(output.MaybeColor(color, color == output.None, diags[i].Message)) |
| 132 | buf.WriteRune('\n') |
| 133 | nextLine[i].Reset() |
| 134 | } |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | return buf.String() |
| 139 | } |
| 140 | |