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node_modules/loupe/lib/error.js

@@ -0,0 +1,34 @@
+import { truncate, inspectList, inspectProperty } from './helpers'
+
+const errorKeys = [
+  'stack',
+  'line',
+  'column',
+  'name',
+  'message',
+  'fileName',
+  'lineNumber',
+  'columnNumber',
+  'number',
+  'description',
+]
+
+export default function inspectObject(error, options) {
+  const properties = Object.getOwnPropertyNames(error).filter(key => errorKeys.indexOf(key) === -1)
+  const name = error.name
+  options.truncate -= name.length
+  let message = ''
+  if (typeof error.message === 'string') {
+    message = truncate(error.message, options.truncate)
+  } else {
+    properties.unshift('message')
+  }
+  message = message ? `: ${message}` : ''
+  options.truncate -= message.length + 5
+  const propertyContents = inspectList(
+    properties.map(key => [key, error[key]]),
+    options,
+    inspectProperty
+  )
+  return `${name}${message}${propertyContents ? ` { ${propertyContents} }` : ''}`
+}