Add missing sol-cov comments

packages/sol-cov/src/artifact_adapters/sol_compiler_artifact_adapter.ts

@@ -14,6 +14,11 @@ const CONFIG_FILE = 'compiler.json';
 export class SolCompilerArtifactAdapter extends AbstractArtifactAdapter {
     private readonly _artifactsPath: string;
     private readonly _sourcesPath: string;
+    /**
+     * Instantiates a SolCompilerArtifactAdapter
+     * @param artifactsPath Path to your artifacts directory
+     * @param sourcesPath Path to your contract sources directory
+     */
     constructor(artifactsPath?: string, sourcesPath?: string) {
         super();
         const config: CompilerOptions = fs.existsSync(CONFIG_FILE)

packages/sol-cov/src/artifact_adapters/truffle_artifact_adapter.ts

@@ -9,6 +9,11 @@ import { SolCompilerArtifactAdapter } from './sol_compiler_artifact_adapter';
 export class TruffleArtifactAdapter extends AbstractArtifactAdapter {
     private readonly _solcVersion: string;
     private readonly _sourcesPath: string;
+    /**
+     * Instantiates a TruffleArtifactAdapter
+     * @param artifactsPath Path to the truffle project's artifacts directory
+     * @param sourcesPath Path to the truffle project's contract sources directory
+     */
     constructor(sourcesPath: string, solcVersion: string) {
         super();
         this._solcVersion = solcVersion;

packages/sol-cov/src/trace_collection_subprovider.ts

@@ -63,7 +63,7 @@ export abstract class TraceCollectionSubprovider extends Subprovider {
      * turn to handle a JSON RPC request.
      * @param payload JSON RPC payload
      * @param next Callback to call if this subprovider decides not to handle the request
-     * @param end Callback to call if subprovider handled the request and wants to pass back the request.
+     * @param _end Callback to call if subprovider handled the request and wants to pass back the request.
      */
     // tslint:disable-next-line:prefer-function-over-method async-suffix
     public async handleRequest(payload: JSONRPCRequestPayload, next: NextCallback, _end: ErrorCallback): Promise<void> {