Fix references to function names in parent scope

This commit addresses bugs introduce after minification (and
mangling). Because the function references occur in evaluated
strings, several bugs can be encountered. For example, the
minification engine may decide to eliminate what it considers
unused code/variables. Next, a minification engine may rename the
variables, thus introducing a discrepancy in the evaluated string
which relies on the source variable names. The workaround used in
this commit is to bind the functions directly to the evaluated
function, where property names are less likely to be mangled.

Author: kgryte

lib/node_modules/@stdlib/ndarray/ctor/lib/compile_get.js

@@ -20,8 +20,8 @@
 
 // MODULES //
 
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive; // eslint-disable-line no-unused-vars
-var getIndex = require( '@stdlib/ndarray/base/ind' ); // eslint-disable-line no-unused-vars
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var getIndex = require( '@stdlib/ndarray/base/ind' );
 
 
 // MAIN //
@@ -65,14 +65,14 @@ function get( ndims, mode ) {
 	* > if ( !isInteger( i0 ) ) { throw new TypeError( ... ) }
 	*/
 	for ( i = 0; i < ndims; i++ ) {
-		f += 'if(!isInteger(i'+i+')){throw new TypeError(\'invalid input argument. Indices must be integer valued. Argument: '+i+'. Value: `\'+i'+i+'+\'`.\');}';
+		f += 'if(!f.__isint__(i'+i+')){throw new TypeError(\'invalid input argument. Indices must be integer valued. Argument: '+i+'. Value: `\'+i'+i+'+\'`.\');}';
 	}
 	/*
 	* Resolve indices based on the index mode.
 	* > i0 = getIndex( i0, shape[0]-1, mode );
 	*/
 	for ( i = 0; i < ndims; i++ ) {
-		f += 'i'+i+'=getIndex(i'+i+',this._shape['+i+']-1,\''+mode[i%mode.length]+'\');';
+		f += 'i'+i+'=f.__get_index__(i'+i+',this._shape['+i+']-1,\''+mode[i%mode.length]+'\');';
 	}
 	/*
 	* Index into the array according to the offset and strides...
@@ -97,7 +97,11 @@ function get( ndims, mode ) {
 	f += '//# sourceURL=ndarray.ctor.get.js';
 
 	// Create the function in the current scope to allow access to required modules:
-	return eval( f ); // eslint-disable-line no-eval
+	f = eval( f ); // eslint-disable-line no-eval
+	f.__isint__ = isInteger; // eslint-disable-line no-underscore-dangle
+	f.__get_index__ = getIndex; // eslint-disable-line no-underscore-dangle
+
+	return f;
 
 	/*
 	* e.g.,

lib/node_modules/@stdlib/ndarray/ctor/lib/compile_set.js

@@ -20,8 +20,8 @@
 
 // MODULES //
 
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive; // eslint-disable-line no-unused-vars
-var getIndex = require( '@stdlib/ndarray/base/ind' ); // eslint-disable-line no-unused-vars
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var getIndex = require( '@stdlib/ndarray/base/ind' );
 
 
 // MAIN //
@@ -62,14 +62,14 @@ function set( ndims, mode ) {
 	* > if ( !isInteger( i0 ) ) { throw new TypeError( ... ) }
 	*/
 	for ( i = 0; i < ndims; i++ ) {
-		f += 'if(!isInteger(i'+i+')){throw new TypeError(\'invalid input argument. Indices must be integer valued. Argument: '+i+'. Value: `\'+i'+i+'+\'`.\');}';
+		f += 'if(!f.__isint__(i'+i+')){throw new TypeError(\'invalid input argument. Indices must be integer valued. Argument: '+i+'. Value: `\'+i'+i+'+\'`.\');}';
 	}
 	/*
 	* Resolve indices based on the index mode.
 	* > i0 = getIndex( i0, shape[0]-1, mode );
 	*/
 	for ( i = 0; i < ndims; i++ ) {
-		f += 'i'+i+'=getIndex(i'+i+',this._shape['+i+']-1,\''+mode[i%mode.length]+'\');';
+		f += 'i'+i+'=f.__get_index__(i'+i+',this._shape['+i+']-1,\''+mode[i%mode.length]+'\');';
 	}
 	/*
 	* Index into the array according to the offset and strides...
@@ -97,7 +97,11 @@ function set( ndims, mode ) {
 	f += '//# sourceURL=ndarray.ctor.set.js';
 
 	// Create the function in the current scope to allow access to required modules:
-	return eval( f ); // eslint-disable-line no-eval
+	f = eval( f ); // eslint-disable-line no-eval
+	f.__isint__ = isInteger; // eslint-disable-line no-underscore-dangle
+	f.__get_index__ = getIndex; // eslint-disable-line no-underscore-dangle
+
+	return f;
 
 	/*
 	* e.g.,