fix(compiler): infinite loop in generateCodeFrame (vuejs#10547)

Author: oguimbal

src/compiler/codeframe.js

@@ -5,18 +5,23 @@ const range = 2
 export function generateCodeFrame (
   source: string,
   start: number = 0,
-  end: number = source.length
+  end?: number
 ): string {
-  const lines = source.split(/\r?\n/)
+  const lines = source.split(/\n/)
+    .map(x => x[x.length - 1] === '\r' ? { line: x.substr(0, x.length - 1), increment: 2 } : { line: x, increment: 1})
+  if (typeof end === 'undefined') {
+    end = lines.reduce((s, x) => s + x.line.length + x.increment, 0)
+  }
   let count = 0
   const res = []
   for (let i = 0; i < lines.length; i++) {
-    count += lines[i].length + 1
+    count += lines[i].line.length + 1
     if (count >= start) {
       for (let j = i - range; j <= i + range || end > count; j++) {
-        if (j < 0 || j >= lines.length) continue
-        res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}|  ${lines[j]}`)
-        const lineLength = lines[j].length
+        if (j < 0) continue
+        if (j >= lines.length) break
+        res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}|  ${lines[j].line}`)
+        const lineLength = lines[j].line.length
         if (j === i) {
           // push underline
           const pad = start - (count - lineLength) + 1
@@ -27,7 +32,7 @@ export function generateCodeFrame (
             const length = Math.min(end - count, lineLength)
             res.push(`   |  ` + repeat(`^`, length))
           }
-          count += lineLength + 1
+          count += lineLength + lines[j].increment
         }
       }
       break