fix(unused): Support interfaces and type aliases.

cartant · Apr 12, 2019 · bdc71ba · bdc71ba
1 parent 2980e01
commit bdc71ba
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Showing 2 changed files with 26 additions and 1 deletion.
diff --git a/fixtures/no-unused-declaration/unused-types/fixture.ts.fix b/fixtures/no-unused-declaration/unused-types/fixture.ts.fix
@@ -1,2 +1,3 @@
-class Person {}
+interface SomeInterface {}
+type SomeType = {};
 
diff --git a/source/rules/noUnusedDeclarationRule.ts b/source/rules/noUnusedDeclarationRule.ts
@@ -144,6 +144,18 @@ export class Walker extends Lint.ProgramAwareRuleWalker {
         super.visitImportDeclaration(node);
     }
 
+    protected visitInterfaceDeclaration(node: ts.InterfaceDeclaration): void {
+
+        if (this._validate.declarations) {
+            const { name } = node;
+            if (!tsutils.hasModifier(node.modifiers, ts.SyntaxKind.ExportKeyword)) {
+                this.declared(node, name);
+                this.setScopedIdentifier(name);
+            }
+        }
+        super.visitInterfaceDeclaration(node);
+    }
+
     protected visitJsxSelfClosingElement(node: ts.JsxSelfClosingElement): void {
 
         this.seenJsx();
@@ -223,6 +235,18 @@ export class Walker extends Lint.ProgramAwareRuleWalker {
         super.visitObjectLiteralExpression(node);
     }
 
+    protected visitTypeAliasDeclaration(node: ts.TypeAliasDeclaration): void {
+
+        if (this._validate.declarations) {
+            const { name } = node;
+            if (!tsutils.hasModifier(node.modifiers, ts.SyntaxKind.ExportKeyword)) {
+                this.declared(node, name);
+                this.setScopedIdentifier(name);
+            }
+        }
+        super.visitTypeAliasDeclaration(node);
+    }
+
     protected visitVariableStatement(node: ts.VariableStatement): void {
 
         if (this._validate.declarations) {