[PATCH] D33193: clang-format: [JS] for async loops.

Mon, 15 May 2017 12:47:11 -0700 

This revision was automatically updated to reflect the committed changes.
mprobst marked an inline comment as done.
Closed by commit rL303106: clang-format: [JS] for async loops. (authored by 
mprobst).

Changed prior to commit:
  https://reviews.llvm.org/D33193?vs=98997&id=99048#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D33193

Files:
  cfe/trunk/lib/Format/TokenAnnotator.cpp
  cfe/trunk/lib/Format/UnwrappedLineParser.cpp
  cfe/trunk/unittests/Format/FormatTestJS.cpp


Index: cfe/trunk/unittests/Format/FormatTestJS.cpp
===================================================================
--- cfe/trunk/unittests/Format/FormatTestJS.cpp
+++ cfe/trunk/unittests/Format/FormatTestJS.cpp
@@ -548,6 +548,15 @@
                "  // Comment.\n"
                "  return async.then();\n"
                "}\n");
+  verifyFormat("for async (const x of y) {\n"
+               "  console.log(x);\n"
+               "}\n");
+  verifyFormat("function asyncLoop() {\n"
+               "  for async (const x of y) {\n"
+               "    console.log(x);\n"
+               "  }\n"
+               "}\n");
+
 }
 
 TEST_F(FormatTestJS, FunctionParametersTrailingComma) {
Index: cfe/trunk/lib/Format/TokenAnnotator.cpp
===================================================================
--- cfe/trunk/lib/Format/TokenAnnotator.cpp
+++ cfe/trunk/lib/Format/TokenAnnotator.cpp
@@ -576,9 +576,12 @@
       }
       break;
     case tok::kw_for:
-      if (Style.Language == FormatStyle::LK_JavaScript && Tok->Previous &&
-          Tok->Previous->is(tok::period))
-        break;
+      if (Style.Language == FormatStyle::LK_JavaScript)
+        if (Tok->Previous && Tok->Previous->is(tok::period))
+          break;
+        // JS' for async ( ...
+        if (CurrentToken->is(Keywords.kw_async))
+          next();
       Contexts.back().ColonIsForRangeExpr = true;
       next();
       if (!parseParens())
@@ -2249,6 +2252,10 @@
   } else if (Style.Language == FormatStyle::LK_JavaScript) {
     if (Left.is(TT_JsFatArrow))
       return true;
+    // for async ( ...
+    if (Right.is(tok::l_paren) && Left.is(Keywords.kw_async) &&
+        Left.Previous && Left.Previous->is(tok::kw_for))
+      return true;
     if (Left.is(Keywords.kw_async) && Right.is(tok::l_paren) &&
         Right.MatchingParen) {
       const FormatToken *Next = Right.MatchingParen->getNextNonComment();
Index: cfe/trunk/lib/Format/UnwrappedLineParser.cpp
===================================================================
--- cfe/trunk/lib/Format/UnwrappedLineParser.cpp
+++ cfe/trunk/lib/Format/UnwrappedLineParser.cpp
@@ -1635,6 +1635,10 @@
   assert(FormatTok->isOneOf(tok::kw_for, tok::kw_while, TT_ForEachMacro) &&
          "'for', 'while' or foreach macro expected");
   nextToken();
+  // JS' for async ( ...
+  if (Style.Language == FormatStyle::LK_JavaScript &&
+      FormatTok->is(Keywords.kw_async))
+    nextToken();
   if (FormatTok->Tok.is(tok::l_paren))
     parseParens();
   if (FormatTok->Tok.is(tok::l_brace)) {



Index: cfe/trunk/unittests/Format/FormatTestJS.cpp
===================================================================
--- cfe/trunk/unittests/Format/FormatTestJS.cpp
+++ cfe/trunk/unittests/Format/FormatTestJS.cpp
@@ -548,6 +548,15 @@
                "  // Comment.\n"
                "  return async.then();\n"
                "}\n");
+  verifyFormat("for async (const x of y) {\n"
+               "  console.log(x);\n"
+               "}\n");
+  verifyFormat("function asyncLoop() {\n"
+               "  for async (const x of y) {\n"
+               "    console.log(x);\n"
+               "  }\n"
+               "}\n");
+
 }
 
 TEST_F(FormatTestJS, FunctionParametersTrailingComma) {
Index: cfe/trunk/lib/Format/TokenAnnotator.cpp
===================================================================
--- cfe/trunk/lib/Format/TokenAnnotator.cpp
+++ cfe/trunk/lib/Format/TokenAnnotator.cpp
@@ -576,9 +576,12 @@
       }
       break;
     case tok::kw_for:
-      if (Style.Language == FormatStyle::LK_JavaScript && Tok->Previous &&
-          Tok->Previous->is(tok::period))
-        break;
+      if (Style.Language == FormatStyle::LK_JavaScript)
+        if (Tok->Previous && Tok->Previous->is(tok::period))
+          break;
+        // JS' for async ( ...
+        if (CurrentToken->is(Keywords.kw_async))
+          next();
       Contexts.back().ColonIsForRangeExpr = true;
       next();
       if (!parseParens())
@@ -2249,6 +2252,10 @@
   } else if (Style.Language == FormatStyle::LK_JavaScript) {
     if (Left.is(TT_JsFatArrow))
       return true;
+    // for async ( ...
+    if (Right.is(tok::l_paren) && Left.is(Keywords.kw_async) &&
+        Left.Previous && Left.Previous->is(tok::kw_for))
+      return true;
     if (Left.is(Keywords.kw_async) && Right.is(tok::l_paren) &&
         Right.MatchingParen) {
       const FormatToken *Next = Right.MatchingParen->getNextNonComment();
Index: cfe/trunk/lib/Format/UnwrappedLineParser.cpp
===================================================================
--- cfe/trunk/lib/Format/UnwrappedLineParser.cpp
+++ cfe/trunk/lib/Format/UnwrappedLineParser.cpp
@@ -1635,6 +1635,10 @@
   assert(FormatTok->isOneOf(tok::kw_for, tok::kw_while, TT_ForEachMacro) &&
          "'for', 'while' or foreach macro expected");
   nextToken();
+  // JS' for async ( ...
+  if (Style.Language == FormatStyle::LK_JavaScript &&
+      FormatTok->is(Keywords.kw_async))
+    nextToken();
   if (FormatTok->Tok.is(tok::l_paren))
     parseParens();
   if (FormatTok->Tok.is(tok::l_brace)) {

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