Add extra indent for nested calls inside if's.

Before:
if (aaaaaaaaaa(
    aaaaaaaaaa)) {}

After:
if (aaaaaaaaaa(
        aaaaaaaaaa)) {}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173290 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 3 deletions

diff --git a/lib/Format/Format.cpp b/lib/Format/Format.cpp
index eb18be82b3..b16eb15318 100644
--- a/lib/Format/Format.cpp
+++ b/lib/Format/Format.cpp
@@ -604,10 +604,14 @@ private:
           Current.isNot(tok::comment))
         State.Stack[ParenLevel].HasMultiParameterLine = true;
 
-      // Top-level spaces are exempt as that mostly leads to better results.
       State.Column += Spaces;
-      if (Spaces > 0 && ParenLevel != 0)
-        State.Stack[ParenLevel].LastSpace = State.Column;
+      if (Current.is(tok::l_paren) && Previous.is(tok::kw_if))
+        // Treat the condition inside an if as if it was a second function
+        // parameter, i.e. let nested calls have an indent of 4.
+        State.Stack.back().LastSpace = State.Column + 1; // 1 is length of "(".
+      else if (Spaces > 0 && ParenLevel != 0)
+        // Top-level spaces are exempt as that mostly leads to better results.
+        State.Stack.back().LastSpace = State.Column;
     }
 
     // If we break after an {, we should also break before the corresponding }.