Port workspace symbols tests (#2146)

Author: gabritto

internal/ast/ast.go

@@ -10983,7 +10983,7 @@ func (node *SourceFile) computeDeclarationMap() map[string][]*Node {
 	result := make(map[string][]*Node)
 
 	addDeclaration := func(declaration *Node) {
-		name := getDeclarationName(declaration)
+		name := GetDeclarationName(declaration)
 		if name != "" {
 			result[name] = append(result[name], declaration)
 		}
@@ -10993,7 +10993,7 @@ func (node *SourceFile) computeDeclarationMap() map[string][]*Node {
 	visit = func(node *Node) bool {
 		switch node.Kind {
 		case KindFunctionDeclaration, KindFunctionExpression, KindMethodDeclaration, KindMethodSignature:
-			declarationName := getDeclarationName(node)
+			declarationName := GetDeclarationName(node)
 			if declarationName != "" {
 				declarations := result[declarationName]
 				var lastDeclaration *Node
@@ -11025,7 +11025,7 @@ func (node *SourceFile) computeDeclarationMap() map[string][]*Node {
 				break
 			}
 			fallthrough
-		case KindVariableDeclaration, KindBindingElement:
+		case KindVariableDeclaration, KindBindingElement, KindCommonJSExport:
 			name := node.Name()
 			if name != nil {
 				if IsBindingPattern(name) {
@@ -11074,6 +11074,12 @@ func (node *SourceFile) computeDeclarationMap() map[string][]*Node {
 					}
 				}
 			}
+		case KindBinaryExpression:
+			switch GetAssignmentDeclarationKind(node.AsBinaryExpression()) {
+			case JSDeclarationKindThisProperty, JSDeclarationKindProperty:
+				addDeclaration(node)
+			}
+			node.ForEachChild(visit)
 		default:
 			node.ForEachChild(visit)
 		}
@@ -11083,7 +11089,7 @@ func (node *SourceFile) computeDeclarationMap() map[string][]*Node {
 	return result
 }
 
-func getDeclarationName(declaration *Node) string {
+func GetDeclarationName(declaration *Node) string {
 	name := GetNonAssignedNameOfDeclaration(declaration)
 	if name != nil {
 		if IsComputedPropertyName(name) {

internal/compiler/program.go

@@ -68,6 +68,10 @@ type Program struct {
 	// Cached unresolved imports for ATA
 	unresolvedImportsOnce sync.Once
 	unresolvedImports     *collections.Set[string]
+
+	// Used by workspace/symbol
+	hasTSFileOnce sync.Once
+	hasTSFile     bool
 }
 
 // FileExists implements checker.Program.
@@ -1634,6 +1638,23 @@ func (p *Program) SourceFileMayBeEmitted(sourceFile *ast.SourceFile, forceDtsEmi
 	return sourceFileMayBeEmitted(sourceFile, p, forceDtsEmit)
 }
 
+func (p *Program) IsLibFile(sourceFile *ast.SourceFile) bool {
+	_, ok := p.libFiles[sourceFile.Path()]
+	return ok
+}
+
+func (p *Program) HasTSFile() bool {
+	p.hasTSFileOnce.Do(func() {
+		for _, file := range p.files {
+			if tspath.HasImplementationTSFileExtension(file.FileName()) {
+				p.hasTSFile = true
+				break
+			}
+		}
+	})
+	return p.hasTSFile
+}
+
 var plainJSErrors = collections.NewSetFromItems(
 	// binder errors
 	diagnostics.Cannot_redeclare_block_scoped_variable_0.Code(),