feat: types definitions (#52)

index.d.ts

@@ -0,0 +1,32 @@
+import {JSONSchema4, JSONSchema6, JSONSchema7} from 'json-schema';
+import {ErrorObject} from 'ajv';
+
+type Schema = JSONSchema4 | JSONSchema6 | JSONSchema7;
+type PostFormatter = (formattedError: string, error: ErrorObject) => string;
+
+declare namespace SchemaUtils {
+  class ValidateError extends Error {
+    constructor(errors: Array<ErrorObject>, schema: Schema, configuration?: Partial<ValidateErrorConfiguration>);
+
+    name: string;
+    errors: Array<ErrorObject>;
+    schema: Schema;
+    headerName: string;
+    baseDataPath: string;
+    postFormatter: PostFormatter | null;
+    message: string;
+  }
+
+  interface ValidateErrorConfiguration {
+    name: string,
+    baseDataPath: string,
+    postFormatter: PostFormatter
+  }
+}
+
+declare var validate: {
+  (schema: Schema, options: Array<object> | object, configuration?: Partial<SchemaUtils.ValidateErrorConfiguration>): void;
+  ValidateError: typeof SchemaUtils.ValidateError
+}
+
+export = validate;

package.json

@@ -8,6 +8,7 @@
   "homepage": "https://github.com/webpack/schema-utils",
   "bugs": "https://github.com/webpack/schema-utils/issues",
   "main": "dist/index.js",
+  "types": "index.d.ts",
   "engines": {
     "node": ">= 8.9.0"
   },
@@ -43,6 +44,7 @@
     "@babel/preset-env": "^7.6.2",
     "@commitlint/cli": "^8.2.0",
     "@commitlint/config-conventional": "^8.2.0",
+    "@types/json-schema": "^7.0.3",
     "@webpack-contrib/defaults": "^5.0.2",
     "@webpack-contrib/eslint-config-webpack": "^3.0.0",
     "babel-jest": "^24.9.0",