From 654dc104ce0bb163bb45cd8c6e4315485a8e3ecf Mon Sep 17 00:00:00 2001
From: Xiaoji Chen <xiaoji@uber.com>
Date: Sun, 4 Aug 2019 11:46:32 -0700
Subject: [PATCH] unbreak try catch use case

---
 src/rules/no-commonjs.js       | 19 ++++++++++++++-----
 tests/src/rules/no-commonjs.js | 10 ++++------
 2 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/src/rules/no-commonjs.js b/src/rules/no-commonjs.js
index 1c3f4cff8..892e855ea 100644
--- a/src/rules/no-commonjs.js
+++ b/src/rules/no-commonjs.js
@@ -30,6 +30,18 @@ function validateScope(scope) {
   return false
 }
 
+// https://github.com/estree/estree/blob/master/es5.md
+function isConditional(node) {
+  if (
+    node.type === 'IfStatement'
+    || node.type === 'TryStatement'
+    || node.type === 'LogicalExpression'
+    || node.type === 'ConditionalExpression'
+  ) return true
+  if (node.parent) return isConditional(node.parent)
+  return false
+}
+
 //------------------------------------------------------------------------------
 // Rule Definition
 //------------------------------------------------------------------------------
@@ -93,11 +105,6 @@ module.exports = {
       },
       'CallExpression': function (call) {
         if (!validateScope(context.getScope())) return
-        if (
-          call.parent.type !== 'ExpressionStatement'
-          && call.parent.type !== 'VariableDeclarator'
-          && call.parent.type !== 'AssignmentExpression'
-        ) return
 
         if (call.callee.type !== 'Identifier') return
         if (call.callee.name !== 'require') return
@@ -110,6 +117,8 @@ module.exports = {
 
         if (allowRequire(call, options)) return
 
+        if (isConditional(call.parent)) return
+
         // keeping it simple: all 1-string-arg `require` calls are reported
         context.report({
           node: call.callee,
diff --git a/tests/src/rules/no-commonjs.js b/tests/src/rules/no-commonjs.js
index db7414395..b1ee137f4 100644
--- a/tests/src/rules/no-commonjs.js
+++ b/tests/src/rules/no-commonjs.js
@@ -58,7 +58,11 @@ ruleTester.run('no-commonjs', require('rules/no-commonjs'), {
     { code: 'module.exports = "foo"', options: [{ allowPrimitiveModules: true }] },
 
     { code: 'if (typeof window !== "undefined") require("x")', options: [{ allowRequire: true }] },
+    { code: 'if (typeof window !== "undefined") require("x")', options: [{ allowRequire: false }] },
     { code: 'if (typeof window !== "undefined") { require("x") }', options: [{ allowRequire: true }] },
+    { code: 'if (typeof window !== "undefined") { require("x") }', options: [{ allowRequire: false }] },
+  
+    { code: 'try { require("x") } catch (error) {}' },
   ],
 
   invalid: [
@@ -68,12 +72,6 @@ ruleTester.run('no-commonjs', require('rules/no-commonjs'), {
       { code: 'var x = require("x")', errors: [ { message: IMPORT_MESSAGE }] },
       { code: 'x = require("x")', errors: [ { message: IMPORT_MESSAGE }] },
       { code: 'require("x")', errors: [ { message: IMPORT_MESSAGE }] },
-      { code: 'if (typeof window !== "undefined") require("x")',
-        errors: [ { message: IMPORT_MESSAGE }],
-      },
-      { code: 'if (typeof window !== "undefined") { require("x") }',
-        errors: [ { message: IMPORT_MESSAGE }],
-      },
     ]),
 
     // exports