4 files changed, 22 insertions, 20 deletions
diff --git a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
index 5bd6aae03..dc897d810 100644
--- a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
+++ b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
@@ -51,6 +51,12 @@ export abstract class DataType {
         return value;
     }
 
+    public decodeAsArray(returndata: string, rules?: DecodingRules): any {
+        const value = this.decode(returndata, rules);
+        const valuesAsArray = _.isObject(value) ? _.values(value) : [value];
+        return valuesAsArray;
+    }
+
     public getSignature(detailed?: boolean): string {
         if (_.isEmpty(this._dataItem.name) || !detailed) return this.getSignatureType();
         const name = this.getDataItem().name;
diff --git a/packages/utils/src/abi_encoder/evm_data_type_factory.ts b/packages/utils/src/abi_encoder/evm_data_type_factory.ts
index 5ff7366d6..fdd4f0fde 100644
--- a/packages/utils/src/abi_encoder/evm_data_type_factory.ts
+++ b/packages/utils/src/abi_encoder/evm_data_type_factory.ts
@@ -135,21 +135,23 @@ export class EvmDataTypeFactory implements DataTypeFactory {
 // Convenience function
 export function create(input: DataItem | DataItem[] | string): DataType {
     // Handle different types of input
-    let dataItems: DataItem[] = [];
-    if (typeof(input) === 'string') {
-        dataItems = generateDataItemsFromSignature(input);
-    } else if(input instanceof Array) {
-        dataItems = input as DataItem[];
+    const isSignature = typeof(input) === 'string';
+    const isTupleSignature = isSignature && (input as string).startsWith('(');
+    const parseAsTuple = isTupleSignature || _.isArray(input);
+    // Create input `dataItem`
+    let dataItem: DataItem;
+    if(parseAsTuple) {
+        const dataItems = isSignature ? generateDataItemsFromSignature(input as string) : input as DataItem[];
+        dataItem = {
+            name: '',
+            type: 'tuple',
+            components: dataItems
+        };
     } else {
-        dataItems = [input as DataItem];
+        dataItem = isSignature ? generateDataItemsFromSignature(input as string)[0] : input as DataItem;
     }
-    // Create single data item from input
-    let dataItem: DataItem = dataItems.length === 1 ? dataItems[0] : {
-        name: '',
-        type: 'tuple',
-        components: dataItems
-    };
     // Create data type
-    return EvmDataTypeFactory.getInstance().create(dataItem);
+    const dataType = EvmDataTypeFactory.getInstance().create(dataItem);
+    return dataType;
 }
 /* tslint:enable no-construct */
diff --git a/packages/utils/src/abi_encoder/evm_data_types/method.ts b/packages/utils/src/abi_encoder/evm_data_types/method.ts
index 212e2ca6b..44456cd0a 100644
--- a/packages/utils/src/abi_encoder/evm_data_types/method.ts
+++ b/packages/utils/src/abi_encoder/evm_data_types/method.ts
@@ -35,12 +35,6 @@ export class MethodDataType extends AbstractSetDataType {
         return value;
     }
 
-    public decodeAsArray(returndata: string, rules?: DecodingRules): any {
-        const value = this.decode(returndata, rules);
-        const valuesAsArray = _.isObject(value) ? _.values(value) : [value];
-        return valuesAsArray;
-    }
-
     public encodeReturnValues(value: any, rules?: EncodingRules): string {
         const returnData = this._returnDataType.encode(value, rules);
         return returnData;
diff --git a/packages/utils/src/abi_encoder/index.ts b/packages/utils/src/abi_encoder/index.ts
index f7f1ceedc..cfacfe075 100644
--- a/packages/utils/src/abi_encoder/index.ts
+++ b/packages/utils/src/abi_encoder/index.ts
@@ -13,4 +13,4 @@ export {
     UInt,
     create,
 } from './evm_data_type_factory';
-//export { fromSignature } from './utils/signatureParser';
+export { DataType } from './abstract_data_types/data_type';