Add support for providing a dtype enum (or other dtype value)

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/dtype-desc/README.md

@@ -59,7 +59,7 @@ var desc = dtypeDesc( 'foobar' );
 // returns null
 ```
 
-If not provided a [data type][@stdlib/ndarray/dtypes] string, the function returns an object mapping [data type][@stdlib/ndarray/dtypes] strings to descriptions.
+If not provided a [data type][@stdlib/ndarray/dtypes] value, the function returns an object mapping [data type][@stdlib/ndarray/dtypes] strings to descriptions.
 
 ```javascript
 var obj = dtypeDesc();

lib/node_modules/@stdlib/ndarray/base/dtype-desc/docs/repl.txt

@@ -2,15 +2,15 @@
 {{alias}}( [dtype] )
     Returns the description for a specified data type.
 
-    If not provided a string data type, the function returns an object mapping
+    If not provided a data type value, the function returns an object mapping
     data type strings to descriptions.
 
     If provided an unknown/unsupported data type, the function returns `null`.
 
     Parameters
     ----------
-    dtype: string (optional)
-        Data type.
+    dtype: any (optional)
+        Data type value.
 
     Returns
     -------

lib/node_modules/@stdlib/ndarray/base/dtype-desc/docs/types/index.d.ts

@@ -29,7 +29,7 @@ interface Table {
 /**
 * Returns the description for a provided data type.
 *
-* @param dtype - data type
+* @param dtype - data type value
 * @returns data type description
 *
 * @example
@@ -39,7 +39,7 @@ interface Table {
 * desc = dtypeDesc( 'generic' );
 * // returns '...'
 */
-declare function dtypeDesc( dtype: string ): string | null;
+declare function dtypeDesc( dtype: any ): string | null;
 
 /**
 * Returns an object mapping data type strings to descriptions.

lib/node_modules/@stdlib/ndarray/base/dtype-desc/docs/types/test.ts

@@ -31,15 +31,3 @@ import dtypeDesc = require( './index' );
 	dtypeDesc( 'float64' ); // $ExpectType string | null
 	dtypeDesc( 'generic' ); // $ExpectType string | null
 }
-
-// The function does not compile if provided a value other than a string...
-{
-	dtypeDesc( true ); // $ExpectError
-	dtypeDesc( false ); // $ExpectError
-	dtypeDesc( null ); // $ExpectError
-	dtypeDesc( undefined ); // $ExpectError
-	dtypeDesc( 5 ); // $ExpectError
-	dtypeDesc( [] ); // $ExpectError
-	dtypeDesc( {} ); // $ExpectError
-	dtypeDesc( ( x: number ): number => x ); // $ExpectError
-}

lib/node_modules/@stdlib/ndarray/base/dtype-desc/lib/main.js

@@ -20,6 +20,7 @@
 
 // MODULES //
 
+var resolve = require( '@stdlib/ndarray/base/dtype-resolve-str' );
 var table = require( './table.js' );
 
 
@@ -54,7 +55,7 @@ function dtypeDesc( dtype ) {
 	if ( TABLE === void 0 ) {
 		TABLE = table();
 	}
-	return TABLE[ dtype ] || null;
+	return TABLE[ resolve( dtype ) ] || null;
 }