Fix: wrong indentation (fixes #407) (#413)

Author: mysticatea

Diff for: lib/utils/indent-common.js

@@ -1024,6 +1024,9 @@ module.exports.defineVisitor = function create (context, tokenStore, defaultOpti
     ExportAllDeclaration (node) {
       const tokens = tokenStore.getTokens(node)
       const firstToken = tokens.shift()
+      if (isSemicolon(last(tokens))) {
+        tokens.pop()
+      }
       setOffset(tokens, 1, firstToken)
     },
 
@@ -1445,25 +1448,20 @@ module.exports.defineVisitor = function create (context, tokenStore, defaultOpti
 
     // Process semicolons.
     ':statement' (node) {
-      const info = offsets.get(tokenStore.getFirstToken(node))
+      const firstToken = tokenStore.getFirstToken(node)
       const lastToken = tokenStore.getLastToken(node)
-      if (info == null) {
-        return
-      }
-      if (isSemicolon(lastToken)) {
-        offsets.set(lastToken, info)
+      if (isSemicolon(lastToken) && firstToken !== lastToken) {
+        setOffset(lastToken, 0, firstToken)
       }
 
       // Set to the semicolon of the previous token for semicolon-free style.
       // E.g.,
       //   foo
       //   ;[1,2,3].forEach(f)
-      const prevToken = tokenStore.getTokenBefore(node)
-      if (isSemicolon(prevToken)) {
-        const prevPrevToken = tokenStore.getTokenBefore(prevToken)
-        if (prevPrevToken == null || prevToken.loc.end.line !== prevPrevToken.loc.start.line) {
-          offsets.set(prevToken, info)
-        }
+      const info = offsets.get(firstToken)
+      const prevToken = tokenStore.getTokenBefore(firstToken)
+      if (info != null && isSemicolon(prevToken) && prevToken.loc.end.line === firstToken.loc.start.line) {
+        offsets.set(prevToken, info)
       }
     },
 

Diff for: tests/fixtures/script-indent/export-named-declaration-04.vue

@@ -2,7 +2,7 @@
 <script>
 export
   const a = 0
-;
+  ;
 export
   const
     b

Diff for: tests/fixtures/script-indent/issue407.vue

@@ -0,0 +1,12 @@
+<!--{"options":[4,{"baseIndent":1,"switchCase":2}]}-->
+<script>
+    function test() {
+        const variable = 0;
+
+        if (variable === 0) {
+            console.info('wrong indentation reported');
+        }
+    }
+
+    test();
+</script>