Implement getJSSyntacticDiagnosticsForFile for TypeScript-only construct detection in JavaScript files

internal/ast/ast.go

@@ -10046,28 +10046,28 @@ type SourceFile struct {
 	EndOfFileToken *TokenNode // TokenNode[*EndOfFileToken]
 
 	// Fields set by parser
-	diagnostics                 []*Diagnostic
-	jsdocDiagnostics            []*Diagnostic
-	LanguageVariant             core.LanguageVariant
-	ScriptKind                  core.ScriptKind
-	IsDeclarationFile           bool
-	UsesUriStyleNodeCoreModules core.Tristate
-	Identifiers                 map[string]string
-	IdentifierCount             int
-	imports                     []*LiteralLikeNode // []LiteralLikeNode
-	ModuleAugmentations         []*ModuleName      // []ModuleName
-	AmbientModuleNames          []string
-	CommentDirectives           []CommentDirective
-	jsdocCache                  map[*Node][]*Node
-	Pragmas                     []Pragma
-	ReferencedFiles             []*FileReference
-	TypeReferenceDirectives     []*FileReference
-	LibReferenceDirectives      []*FileReference
-	CheckJsDirective            *CheckJsDirective
-	NodeCount                   int
-	TextCount                   int
-	CommonJSModuleIndicator     *Node
-	ExternalModuleIndicator     *Node
+	diagnostics      []*Diagnostic
+	jsdocDiagnostics []*Diagnostic
+	LanguageVariant                core.LanguageVariant
+	ScriptKind                     core.ScriptKind
+	IsDeclarationFile              bool
+	UsesUriStyleNodeCoreModules    core.Tristate
+	Identifiers                    map[string]string
+	IdentifierCount                int
+	imports                        []*LiteralLikeNode // []LiteralLikeNode
+	ModuleAugmentations            []*ModuleName      // []ModuleName
+	AmbientModuleNames             []string
+	CommentDirectives              []CommentDirective
+	jsdocCache                     map[*Node][]*Node
+	Pragmas                        []Pragma
+	ReferencedFiles                []*FileReference
+	TypeReferenceDirectives        []*FileReference
+	LibReferenceDirectives         []*FileReference
+	CheckJsDirective               *CheckJsDirective
+	NodeCount                      int
+	TextCount                      int
+	CommonJSModuleIndicator        *Node
+	ExternalModuleIndicator        *Node
 
 	// Fields set by binder
 
@@ -10085,6 +10085,11 @@ type SourceFile struct {
 	lineMapMu sync.RWMutex
 	lineMap   []core.TextPos
 
+	// Fields set by AdditionalSyntacticDiagnostics
+
+	additionalSyntacticDiagnosticsMu sync.RWMutex
+	additionalSyntacticDiagnostics   []*Diagnostic
+
 	// Fields set by language service
 
 	tokenCacheMu     sync.Mutex
@@ -10146,6 +10151,26 @@ func (node *SourceFile) SetJSDocDiagnostics(diags []*Diagnostic) {
 	node.jsdocDiagnostics = diags
 }
 
+func (node *SourceFile) AdditionalSyntacticDiagnostics() []*Diagnostic {
+	node.additionalSyntacticDiagnosticsMu.RLock()
+	diagnostics := node.additionalSyntacticDiagnostics
+	node.additionalSyntacticDiagnosticsMu.RUnlock()
+	if diagnostics == nil {
+		node.additionalSyntacticDiagnosticsMu.Lock()
+		defer node.additionalSyntacticDiagnosticsMu.Unlock()
+		diagnostics = node.additionalSyntacticDiagnostics
+		if diagnostics == nil {
+			diagnostics = getJSSyntacticDiagnosticsForFile(node)
+			node.additionalSyntacticDiagnostics = diagnostics
+		}
+	}
+	return diagnostics
+}
+
+func (node *SourceFile) SetAdditionalSyntacticDiagnostics(diags []*Diagnostic) {
+	node.additionalSyntacticDiagnostics = diags
+}
+
 func (node *SourceFile) JSDocCache() map[*Node][]*Node {
 	return node.jsdocCache
 }
@@ -10466,3 +10491,5 @@ type PragmaSpecification struct {
 func (spec *PragmaSpecification) IsTripleSlash() bool {
 	return (spec.Kind & PragmaKindTripleSlashXML) > 0
 }
+
+