Support import without from clause (#405)

ark120202 · Perryvw · commit afb65e2c06f2 · 2019-02-15T18:54:46.000+01:00
diff --git a/src/LuaTransformer.ts b/src/LuaTransformer.ts
@@ -206,12 +206,10 @@ export class LuaTransformer {
     }
 
     public transformImportDeclaration(statement: ts.ImportDeclaration): StatementVisitResult {
-        if (!statement.importClause || !statement.importClause.namedBindings) {
+        if (statement.importClause && !statement.importClause.namedBindings) {
             throw TSTLErrors.DefaultImportsNotSupported(statement);
         }
 
-        const imports = statement.importClause.namedBindings;
-
         const result: tstl.Statement[] = [];
 
         const moduleSpecifier = statement.moduleSpecifier as ts.StringLiteral;
@@ -220,6 +218,12 @@ export class LuaTransformer {
 
         const requireCall = tstl.createCallExpression(tstl.createIdentifier("require"), [resolvedModuleSpecifier]);
 
+        if (!statement.importClause) {
+            result.push(tstl.createExpressionStatement(requireCall));
+            return result;
+        }
+
+        const imports = statement.importClause.namedBindings;
         if (ts.isNamedImports(imports)) {
             const filteredElements = imports.elements.filter(e => {
                 const decorators = tsHelper.getCustomDecorators(this.checker.getTypeAtLocation(e), this.checker);
diff --git a/test/translation/lua/modulesImportWithoutFromClause.lua b/test/translation/lua/modulesImportWithoutFromClause.lua
@@ -0,0 +1 @@
+require("test");
diff --git a/test/translation/ts/modulesImportWithoutFromClause.ts b/test/translation/ts/modulesImportWithoutFromClause.ts
@@ -0,0 +1 @@
+import "test";
