fix: guard against null and undefined

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/_tools/eslint/rules/eol-open-bracket-spacing/lib/main.js

@@ -79,44 +79,49 @@ function main( context ) {
 		var prevToken;
 		var elem;
 		var args;
+		var v;
 
 		if (
 			( node.type === 'CallExpression' || node.type === 'NewExpression' ) &&
 			node.arguments.length > 0
 		) {
 			args = node.arguments;
+			v = args[ 0 ];
 			if (
-				args[ 0 ].type === 'ObjectExpression' &&
-				args[ 0 ].properties.length > 0
+				v &&
+				v.type === 'ObjectExpression' &&
+				v.properties.length > 0
 			) {
-				prevToken = source.getTokenBefore( args[ 0 ] );
-				tokenAfter = source.getFirstToken( args[ 0 ] );
+				prevToken = source.getTokenBefore( v );
+				tokenAfter = source.getFirstToken( v );
 				if (
 					prevToken.loc.end.line === tokenAfter.loc.end.line &&
 					source.isSpaceBetween( prevToken, tokenAfter )
 				) {
 					report( node, prevToken, tokenAfter );
 				}
 			} else if (
-				args[ 0 ].type === 'ArrayExpression' &&
-				args[ 0 ].elements.length > 0
+				v &&
+				v.type === 'ArrayExpression' &&
+				v.elements.length > 0
 			) {
-				elem = args[ 0 ].elements[ 0 ];
+				elem = v.elements[ 0 ];
 				if (
+					elem &&
 					elem.type === 'ObjectExpression' &&
 					elem.properties.length > 0
 				) {
-					prevToken = source.getTokenBefore( args[ 0 ] );
-					tokenAfter = source.getFirstToken( args[ 0 ] );
+					prevToken = source.getTokenBefore( v );
+					tokenAfter = source.getFirstToken( v );
 					if (
 						prevToken.loc.end.line === tokenAfter.loc.end.line &&
 						source.isSpaceBetween( prevToken, tokenAfter )
 					) {
 						report( node, prevToken, tokenAfter );
 					}
 				} else {
-					prevToken = source.getTokenBefore( args[ 0 ] );
-					tokenAfter = source.getFirstToken( args[ 0 ] );
+					prevToken = source.getTokenBefore( v );
+					tokenAfter = source.getFirstToken( v );
 					nextToken = source.getTokenAfter( tokenAfter );
 					if (
 						tokenAfter.loc.end.line !== nextToken.loc.end.line &&
@@ -135,6 +140,7 @@ function main( context ) {
 		) {
 			elem = node.elements[ 0 ];
 			if (
+				elem &&
 				elem.type === 'ObjectExpression' &&
 				elem.properties.length > 0
 			) {

lib/node_modules/@stdlib/_tools/eslint/rules/line-closing-bracket-spacing/lib/main.js

@@ -86,8 +86,9 @@ function main( context ) {
 			node.arguments.length > 0
 		) {
 			args = node.arguments;
-			lastElem = args[ args.length - 1 ];
+			lastElem = args[ args.length-1 ];
 			if (
+				lastElem &&
 				lastElem.type === 'ObjectExpression' &&
 				lastElem.properties.length > 0
 			) {
@@ -100,11 +101,13 @@ function main( context ) {
 					report( node, prevToken, tokenAfter );
 				}
 			} else if (
+				lastElem &&
 				lastElem.type === 'ArrayExpression' &&
 				lastElem.elements.length > 0
 			) {
-				elem = lastElem.elements[ lastElem.elements.length - 1 ];
+				elem = lastElem.elements[ lastElem.elements.length-1 ];
 				if (
+					elem &&
 					elem.type === 'ObjectExpression' &&
 					elem.properties.length > 0
 				) {
@@ -135,8 +138,9 @@ function main( context ) {
 			node.type === 'ArrayExpression' &&
 			node.elements.length > 0
 		) {
-			elem = node.elements[ node.elements.length - 1 ];
+			elem = node.elements[ node.elements.length-1 ];
 			if (
+				elem &&
 				elem.type === 'ObjectExpression' &&
 				elem.properties.length > 0
 			) {