Separated internal and public-facing types

src/file-path-filter.ts

@@ -1,5 +1,5 @@
-import { normalize } from "./normalize";
-import { _filters, AnyFilter, FilterCriterion, FilterFunction, Filters, PathFilter } from "./types";
+import { createFilter } from "./create-filter";
+import { AnyFilter, FilterCriterion, FilterFunction, Filters } from "./types";
 
 /**
  * Creates a `FilterFunction` that matches file paths based on the specified criteria.

src/index.ts

@@ -1,6 +1,6 @@
 import { filePathFilter } from "./file-path-filter";
 
-export { AnyFilter, FilterCriteria, FilterCriterion, FilterFunction, Filters } from "./types";
+export * from "./types";
 export { filePathFilter };
 
 // Export `filePathFilter` as a named export and the default export

src/normalize.ts

@@ -1,5 +1,6 @@
 import * as GlobToRegExp from "glob-to-regexp";
-import { _filters, AnyFilter, Filter, FilterCriterion, FilterFunction, Filters, isFilterCriterion, isPathFilter } from "./types";
+import { AnyFilter, Filter, FilterCriterion, FilterFunction, Filters, Options } from "./types";
+import { _filters, isFilterCriterion, isPathFilter } from "./util";
 
 const isWindows = process.platform === "win32";
 

src/types.ts

@@ -34,34 +34,8 @@ export interface Filters<T = FilterCriteria> {
 export type AnyFilter = FilterCriteria | Partial<Filters>;
 
 /**
- * Symbol used to store the underlying filters of a `pathFilter()` function.
  */
-export const _filters = Symbol("_filters");
-
-/**
- * A `pathFilter()` function that was created by `filePathFilter()`.
- */
-export interface PathFilter extends FilterFunction {
-  [_filters]: Filters<FilterFunction[]>;
-}
-
-/**
- * Determines whether the given value is a `FilterCriterion`.
- */
-export function isFilterCriterion(value: unknown): value is FilterCriterion {
-  let type = typeof value;
-  return type === "string" ||
-    type === "boolean" ||
-    type === "function" ||
-    value instanceof RegExp;
 }
 
 /**
- * Determines whether the given value is one of our internal `pathFilter()` functions.
  */
-export function isPathFilter(value: unknown): value is PathFilter {
-  let fn = value as PathFilter;
-  return fn &&
-    typeof fn === "function" &&
-    typeof fn[_filters] === "object";
-}

src/util.ts

@@ -0,0 +1,34 @@
+import { FilterCriterion, FilterFunction, Filters } from "./types";
+
+/**
+ * Symbol used to store the underlying filters of a `pathFilter()` function.
+ */
+export const _filters = Symbol("_filters");
+
+/**
+ * A `pathFilter()` function that was created by `filePathFilter()`.
+ */
+export interface PathFilter extends FilterFunction {
+  [_filters]: Filters<FilterFunction[]>;
+}
+
+/**
+ * Determines whether the given value is a `FilterCriterion`.
+ */
+export function isFilterCriterion(value: unknown): value is FilterCriterion {
+  let type = typeof value;
+  return type === "string" ||
+    type === "boolean" ||
+    type === "function" ||
+    value instanceof RegExp;
+}
+
+/**
+ * Determines whether the given value is one of our internal `pathFilter()` functions.
+ */
+export function isPathFilter(value: unknown): value is PathFilter {
+  let fn = value as PathFilter;
+  return fn &&
+    typeof fn === "function" &&
+    typeof fn[_filters] === "object";
+}