Move change tracker, converters, utils to separate packages

internal/ast/symbol.go

@@ -23,6 +23,18 @@ type Symbol struct {
 	GlobalExports                SymbolTable            // Conditional global UMD exports
 }
 
+func (s *Symbol) IsExternalModule() bool {
+	return s.Flags&SymbolFlagsModule != 0 && len(s.Name) > 0 && s.Name[0] == '"'
+}
+
+func (s *Symbol) IsStatic() bool {
+	if s.ValueDeclaration == nil {
+		return false
+	}
+	modifierFlags := s.ValueDeclaration.ModifierFlags()
+	return modifierFlags&ModifierFlagsStatic != 0
+}
+
 // SymbolTable
 
 type SymbolTable map[string]*Symbol

internal/ast/utilities.go

@@ -3526,6 +3526,10 @@ func IsTypeDeclarationName(name *Node) bool {
 		GetNameOfDeclaration(name.Parent) == name
 }
 
+func IsRightSideOfPropertyAccess(node *Node) bool {
+	return node.Parent.Kind == KindPropertyAccessExpression && node.Parent.Name() == node
+}
+
 func IsRightSideOfQualifiedNameOrPropertyAccess(node *Node) bool {
 	parent := node.Parent
 	switch parent.Kind {

internal/core/core.go

@@ -687,3 +687,13 @@ func DeduplicateSorted[T any](slice []T, isEqual func(a, b T) bool) []T {
 
 	return deduplicated
 }
+
+// CompareBooleans treats true as greater than false.
+func CompareBooleans(a, b bool) int {
+	if a && !b {
+		return -1
+	} else if !a && b {
+		return 1
+	}
+	return 0
+}

internal/format/rulecontext.go

@@ -6,7 +6,7 @@ import (
 	"github.com/microsoft/typescript-go/internal/ast"
 	"github.com/microsoft/typescript-go/internal/astnav"
 	"github.com/microsoft/typescript-go/internal/core"
-	"github.com/microsoft/typescript-go/internal/lsutil"
+	"github.com/microsoft/typescript-go/internal/ls/lsutil"
 	"github.com/microsoft/typescript-go/internal/scanner"
 )
 

internal/fourslash/_scripts/convertFourslash.mts

@@ -1205,7 +1205,7 @@ function parseUserPreferences(arg: ts.ObjectLiteralExpression): string | undefin
                     preferences.push(`UseAliasesForRename: ${stringToTristate(prop.initializer.getText())}`);
                     break;
                 case "quotePreference":
-                    preferences.push(`QuotePreference: ls.QuotePreference(${prop.initializer.getText()})`);
+                    preferences.push(`QuotePreference: lsutil.QuotePreference(${prop.initializer.getText()})`);
                     break;
             }
         }
@@ -1216,7 +1216,7 @@ function parseUserPreferences(arg: ts.ObjectLiteralExpression): string | undefin
     if (preferences.length === 0) {
         return "nil /*preferences*/";
     }
-    return `&ls.UserPreferences{${preferences.join(",")}}`;
+    return `&lsutil.UserPreferences{${preferences.join(",")}}`;
 }
 
 function parseBaselineMarkerOrRangeArg(arg: ts.Expression): string | undefined {
@@ -1813,6 +1813,9 @@ function generateGoTest(failingTests: Set<string>, test: GoTest): string {
     if (commands.includes("ls.")) {
         imports.push(`"github.com/microsoft/typescript-go/internal/ls"`);
     }
+    if (commands.includes("lsutil.")) {
+        imports.push(`"github.com/microsoft/typescript-go/internal/ls/lsutil"`);
+    }
     if (commands.includes("lsproto.")) {
         imports.push(`"github.com/microsoft/typescript-go/internal/lsp/lsproto"`);
     }

internal/fourslash/baselineutil.go

@@ -13,7 +13,7 @@ import (
 	"github.com/microsoft/typescript-go/internal/collections"
 	"github.com/microsoft/typescript-go/internal/core"
 	"github.com/microsoft/typescript-go/internal/debug"
-	"github.com/microsoft/typescript-go/internal/ls"
+	"github.com/microsoft/typescript-go/internal/ls/lsconv"
 	"github.com/microsoft/typescript-go/internal/lsp/lsproto"
 	"github.com/microsoft/typescript-go/internal/stringutil"
 	"github.com/microsoft/typescript-go/internal/testutil/baseline"
@@ -163,7 +163,7 @@ func (f *FourslashTest) getBaselineForGroupedLocationsWithFileContents(groupedRa
 			return nil
 		}
 
-		fileName := ls.FileNameToDocumentURI(path)
+		fileName := lsconv.FileNameToDocumentURI(path)
 		ranges := groupedRanges.Get(fileName)
 		if len(ranges) == 0 {
 			return nil
@@ -219,7 +219,7 @@ func (f *FourslashTest) getBaselineContentForFile(
 	detailPrefixes := map[*baselineDetail]string{}
 	detailSuffixes := map[*baselineDetail]string{}
 	canDetermineContextIdInline := true
-	uri := ls.FileNameToDocumentURI(fileName)
+	uri := lsconv.FileNameToDocumentURI(fileName)
 
 	if options.marker != nil && options.marker.FileName() == fileName {
 		details = append(details, &baselineDetail{pos: options.marker.LSPos(), positionMarker: options.markerName})
@@ -258,7 +258,7 @@ func (f *FourslashTest) getBaselineContentForFile(
 	}
 
 	slices.SortStableFunc(details, func(d1, d2 *baselineDetail) int {
-		return ls.ComparePositions(d1.pos, d2.pos)
+		return lsproto.ComparePositions(d1.pos, d2.pos)
 	})
 	// !!! if canDetermineContextIdInline
 
@@ -362,20 +362,20 @@ type textWithContext struct {
 	isLibFile  bool
 	fileName   string
 	content    string // content of the original file
-	lineStarts *ls.LSPLineMap
-	converters *ls.Converters
+	lineStarts *lsconv.LSPLineMap
+	converters *lsconv.Converters
 
 	// posLineInfo
 	posInfo  *lsproto.Position
 	lineInfo int
 }
 
-// implements ls.Script
+// implements lsconv.Script
 func (t *textWithContext) FileName() string {
 	return t.fileName
 }
 
-// implements ls.Script
+// implements lsconv.Script
 func (t *textWithContext) Text() string {
 	return t.content
 }
@@ -391,10 +391,10 @@ func newTextWithContext(fileName string, content string) *textWithContext {
 		pos:        lsproto.Position{Line: 0, Character: 0},
 		fileName:   fileName,
 		content:    content,
-		lineStarts: ls.ComputeLSPLineStarts(content),
+		lineStarts: lsconv.ComputeLSPLineStarts(content),
 	}
 
-	t.converters = ls.NewConverters(lsproto.PositionEncodingKindUTF8, func(_ string) *ls.LSPLineMap {
+	t.converters = lsconv.NewConverters(lsproto.PositionEncodingKindUTF8, func(_ string) *lsconv.LSPLineMap {
 		return t.lineStarts
 	})
 	t.readableContents.WriteString("// === " + fileName + " ===")