Implement the resolver

1 files changed, 14 insertions, 0 deletions

diff --git a/packages/resolver/src/resolvers/resolver.ts b/packages/resolver/src/resolvers/resolver.ts
new file mode 100644
index 000000000..7edc9a85d
--- /dev/null
+++ b/packages/resolver/src/resolvers/resolver.ts
@@ -0,0 +1,14 @@
+import * as _ from 'lodash';
+
+import { ContractSource } from '../types';
+
+export abstract class Resolver {
+    public abstract resolveIfExists(importPath: string): ContractSource | undefined;
+    public resolve(importPath: string): ContractSource {
+        const contractSourceIfExists = this.resolveIfExists(importPath);
+        if (_.isUndefined(contractSourceIfExists)) {
+            throw new Error(`Failed to resolve ${importPath}`);
+        }
+        return contractSourceIfExists;
+    }
+}