2 files changed, 24 insertions, 0 deletions
diff --git a/packages/sol-resolver/src/index.ts b/packages/sol-resolver/src/index.ts
index a86053259..f55aca070 100644
--- a/packages/sol-resolver/src/index.ts
+++ b/packages/sol-resolver/src/index.ts
@@ -5,5 +5,6 @@ export { NPMResolver } from './resolvers/npm_resolver';
 export { FSResolver } from './resolvers/fs_resolver';
 export { RelativeFSResolver } from './resolvers/relative_fs_resolver';
 export { NameResolver } from './resolvers/name_resolver';
+export { SpyResolver } from './resolvers/spy_resolver';
 export { EnumerableResolver } from './resolvers/enumerable_resolver';
 export { Resolver } from './resolvers/resolver';
diff --git a/packages/sol-resolver/src/resolvers/spy_resolver.ts b/packages/sol-resolver/src/resolvers/spy_resolver.ts
new file mode 100644
index 000000000..df56c8f9e
--- /dev/null
+++ b/packages/sol-resolver/src/resolvers/spy_resolver.ts
@@ -0,0 +1,23 @@
+import * as fs from 'fs';
+import * as _ from 'lodash';
+import * as path from 'path';
+
+import { ContractSource } from '../types';
+
+import { Resolver } from './resolver';
+
+export class SpyResolver extends Resolver {
+    public resolvedContractSources: ContractSource[] = [];
+    private _resolver: Resolver;
+    constructor(resolver: Resolver) {
+        super();
+        this._resolver = resolver;
+    }
+    public resolveIfExists(importPath: string): ContractSource | undefined {
+        const contractSourceIfExists = this._resolver.resolveIfExists(importPath);
+        if (!_.isUndefined(contractSourceIfExists)) {
+            this.resolvedContractSources.push(contractSourceIfExists);
+        }
+        return contractSourceIfExists;
+    }
+}