/
locationrange.go
244 lines (202 loc) · 5.8 KB
/
locationrange.go
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package ruleset
import (
"encoding/json"
"fmt"
"sort"
"github.com/moby/buildkit/frontend/dockerfile/instructions"
"github.com/moby/buildkit/frontend/dockerfile/parser"
Parser "github.com/cremindes/whalelint/parser"
)
type LocationRange struct {
start *Location
end *Location
}
type Location struct {
lineNumber int
charNumber int
}
func (location *Location) LineNumber() int {
return location.lineNumber
}
func (location *Location) CharNumber() int {
return location.charNumber
}
func (location Location) MarshalJSON() ([]byte, error) {
return json.Marshal(struct {
LineNumber int
CharNumber int
}{
LineNumber: location.lineNumber,
CharNumber: location.charNumber,
})
}
func (location *Location) UnmarshalJSON(data []byte) error {
loc := struct {
LineNumber int
CharNumber int
}{}
err := json.Unmarshal(data, &loc)
if err != nil {
return fmt.Errorf("failed to unmarshal Location: %w", err)
}
location.lineNumber = loc.LineNumber
location.charNumber = loc.CharNumber
return nil
}
func (locationRange *LocationRange) Start() *Location {
return locationRange.start
}
func (locationRange *LocationRange) End() *Location {
return locationRange.end
}
func (locationRange LocationRange) MarshalJSON() ([]byte, error) {
return json.Marshal(struct {
Start Location
End Location
}{
Start: *locationRange.start,
End: *locationRange.end,
})
}
func (locationRange *LocationRange) UnmarshalJSON(data []byte) error {
lr := struct {
Start Location
End Location
}{}
err := json.Unmarshal(data, &lr)
if err != nil {
return fmt.Errorf("failed to unmarshal LocationRange: %w", err)
}
locationRange.start = &lr.Start
locationRange.end = &lr.End // nolint:gofmt,gofumpt,goimports
return nil
}
func LocationRangeFromCommand(command instructions.Command) LocationRange {
return BKRangeSliceToLocationRange(command.Location())
}
func LocationRangeToBKRange(locationRange LocationRange) parser.Range {
return parser.Range{
Start: parser.Position{
Line: locationRange.Start().LineNumber(),
Character: locationRange.Start().CharNumber(),
},
End: parser.Position{
Line: locationRange.End().LineNumber(),
Character: locationRange.End().CharNumber(),
},
}
}
func BKRangeSliceToLocationRange(parserRange []parser.Range) LocationRange {
if parserRange == nil {
return LocationRange{
start: &Location{
lineNumber: 1,
charNumber: 0,
},
end: &Location{
lineNumber: 1,
charNumber: 0,
},
}
}
location := LocationRange{
start: &Location{
lineNumber: parserRange[0].Start.Line,
charNumber: parserRange[0].Start.Character,
},
end: &Location{
lineNumber: parserRange[len(parserRange)-1].End.Line,
charNumber: parserRange[len(parserRange)-1].End.Character,
},
}
return location
}
func NewLocationRange(startLine, startChar, endLine, endChar int) LocationRange {
return LocationRange{
start: &Location{
lineNumber: startLine,
charNumber: startChar,
},
end: &Location{
lineNumber: endLine,
charNumber: endChar,
},
}
}
func ParseLocationFromRawParser(str string, window []parser.Range) LocationRange {
if !Parser.RawParser.IsInitialized() {
return BKRangeSliceToLocationRange(window)
}
location := NewLocationFrom4Int(
Parser.RawParser.StringLocation(str, window),
)
if location.Start().LineNumber() == -1 {
return BKRangeSliceToLocationRange(window)
}
return location
}
func ParseLocationSliceFromRawParser(strSlice []string, window []parser.Range) []LocationRange {
if !Parser.RawParser.IsInitialized() {
return []LocationRange{BKRangeSliceToLocationRange(window)}
}
location := NewLocationFrom4IntSlice(
Parser.RawParser.StringSliceLocation(strSlice, window),
)
if location[0].Start().LineNumber() == -1 {
return []LocationRange{BKRangeSliceToLocationRange(window)}
}
return location
}
func NewLocationFrom4Int(locationRange [4]int) LocationRange {
return LocationRange{
start: &Location{locationRange[0], locationRange[1]},
end: &Location{locationRange[2], locationRange[3]},
}
}
func NewLocationFrom4IntSlice(locationRangeSlice [][4]int) []LocationRange {
result := make([]LocationRange, len(locationRangeSlice))
for i, locationRange := range locationRangeSlice {
result[i] = LocationRange{
start: &Location{locationRange[0], locationRange[1]},
end: &Location{locationRange[2], locationRange[3]},
}
}
return result
}
func UnionOfLocationRanges(locationRangeSlice []LocationRange) LocationRange {
// TODO deep copy
SortLocationRanges(locationRangeSlice)
return LocationRange{
start: &Location{
lineNumber: locationRangeSlice[0].start.lineNumber,
charNumber: locationRangeSlice[0].start.charNumber,
},
end: &Location{
lineNumber: locationRangeSlice[len(locationRangeSlice)-1].end.lineNumber,
charNumber: locationRangeSlice[len(locationRangeSlice)-1].end.charNumber,
},
}
}
func SortLocationRanges(locationRangeSlice []LocationRange) {
sortFunc := func(i, j int) bool {
// compare by 1st variable
if locationRangeSlice[i].start.lineNumber != locationRangeSlice[j].start.lineNumber {
return locationRangeSlice[i].start.lineNumber < locationRangeSlice[j].start.lineNumber
}
// compare by 2nd variable
if locationRangeSlice[i].start.charNumber != locationRangeSlice[j].start.charNumber {
return locationRangeSlice[i].start.charNumber < locationRangeSlice[j].start.charNumber
}
// compare by 3rd variable
if locationRangeSlice[i].end.lineNumber != locationRangeSlice[j].end.lineNumber {
return locationRangeSlice[i].end.lineNumber < locationRangeSlice[j].end.lineNumber
}
// compare by 4th variable
if locationRangeSlice[i].end.charNumber != locationRangeSlice[j].end.charNumber {
return locationRangeSlice[i].end.charNumber < locationRangeSlice[j].end.charNumber
}
// all equal
return false
}
sort.Slice(locationRangeSlice, sortFunc)
}