5 files changed, 40 insertions, 16 deletions
diff --git a/packages/tslint-config/CHANGELOG.json b/packages/tslint-config/CHANGELOG.json
index 9f504216c..0070a5b81 100644
--- a/packages/tslint-config/CHANGELOG.json
+++ b/packages/tslint-config/CHANGELOG.json
@@ -1,5 +1,15 @@
 [
     {
+        "version": "2.0.0",
+        "changes": [
+            {
+                "note": "Improve async-suffix rule to check functions too, not just methods",
+                "pr": 1425
+            }
+        ],
+        "timestamp": 1544739608
+    },
+    {
         "version": "1.0.10",
         "changes": [
             {
diff --git a/packages/tslint-config/CHANGELOG.md b/packages/tslint-config/CHANGELOG.md
index f5cacb5d1..3cebb1e95 100644
--- a/packages/tslint-config/CHANGELOG.md
+++ b/packages/tslint-config/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v2.0.0 - _December 13, 2018_
+
+    * Improve async-suffix rule to check functions too, not just methods (#1425)
+
 ## v1.0.10 - _November 9, 2018_
 
     * Dependencies updated
diff --git a/packages/tslint-config/package.json b/packages/tslint-config/package.json
index 2914f31e2..64ec1e967 100644
--- a/packages/tslint-config/package.json
+++ b/packages/tslint-config/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0x/tslint-config",
-    "version": "1.0.10",
+    "version": "2.0.0",
     "engines": {
         "node": ">=6.12"
     },
diff --git a/packages/tslint-config/rules/walkers/async_suffix.ts b/packages/tslint-config/rules/walkers/async_suffix.ts
index eaec9c5f6..4e12152e8 100644
--- a/packages/tslint-config/rules/walkers/async_suffix.ts
+++ b/packages/tslint-config/rules/walkers/async_suffix.ts
@@ -3,24 +3,33 @@ import * as Lint from 'tslint';
 import * as ts from 'typescript';
 
 export class AsyncSuffixWalker extends Lint.RuleWalker {
-    public static FAILURE_STRING = 'async functions must have an Async suffix';
+    public static FAILURE_STRING = 'async functions/methods must have an Async suffix';
+    public visitFunctionDeclaration(node: ts.FunctionDeclaration): void {
+        this._visitFunctionOrMethodDeclaration(node);
+        super.visitFunctionDeclaration(node);
+    }
     public visitMethodDeclaration(node: ts.MethodDeclaration): void {
-        const methodNameNode = node.name;
-        const methodName = methodNameNode.getText();
-        if (!_.isUndefined(node.type)) {
-            if (node.type.kind === ts.SyntaxKind.TypeReference) {
-                // tslint:disable-next-line:no-unnecessary-type-assertion
-                const returnTypeName = (node.type as ts.TypeReferenceNode).typeName.getText();
-                if (returnTypeName === 'Promise' && !methodName.endsWith('Async')) {
-                    const failure = this.createFailure(
-                        methodNameNode.getStart(),
-                        methodNameNode.getWidth(),
-                        AsyncSuffixWalker.FAILURE_STRING,
-                    );
-                    this.addFailure(failure);
+        this._visitFunctionOrMethodDeclaration(node);
+        super.visitMethodDeclaration(node);
+    }
+    private _visitFunctionOrMethodDeclaration(node: ts.MethodDeclaration | ts.FunctionDeclaration): void {
+        const nameNode = node.name;
+        if (!_.isUndefined(nameNode)) {
+            const name = nameNode.getText();
+            if (!_.isUndefined(node.type)) {
+                if (node.type.kind === ts.SyntaxKind.TypeReference) {
+                    // tslint:disable-next-line:no-unnecessary-type-assertion
+                    const returnTypeName = (node.type as ts.TypeReferenceNode).typeName.getText();
+                    if (returnTypeName === 'Promise' && !name.endsWith('Async')) {
+                        const failure = this.createFailure(
+                            nameNode.getStart(),
+                            nameNode.getWidth(),
+                            AsyncSuffixWalker.FAILURE_STRING,
+                        );
+                        this.addFailure(failure);
+                    }
                 }
             }
         }
-        super.visitMethodDeclaration(node);
     }
 }
diff --git a/packages/tslint-config/tslint.json b/packages/tslint-config/tslint.json
index fd1849dd0..e8de6221e 100644
--- a/packages/tslint-config/tslint.json
+++ b/packages/tslint-config/tslint.json
@@ -92,6 +92,7 @@
         "prefer-function-over-method": true,
         "prefer-object-spread": true,
         "prefer-readonly": true,
+        "prefer-template": true,
         "promise-function-async": true,
         "quotemark": [true, "single", "avoid-escape", "jsx-double"],
         "restrict-plus-operands": true,