From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Mon, 25 Jan 2016 10:34:06 +0000 (+0000)
Subject: Fix printing of types in initializers with suppressed tags.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7f54710ee0367c783c8c10553cb9a5e2c9e39e60;p=clang

Fix printing of types in initializers with suppressed tags.

Tag and specifier printing can be suppressed in Decl::printGroup, but these suppressions leak into the initializers. Thus
    int *x = ((void *)0), *y = ((void *)0);
gets printed as
    int *x = ((void *)0), *y = ((*)0);
And
    struct { struct Z z; } z = {(struct Z){}};
gets printed as
    struct { struct Z z; } z = {(){}};
The stops the suppressions from leaking into the initializers.

Patch by Nick Sumner!

Differential Revision: http://reviews.llvm.org/D16438

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@258679 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/DeclPrinter.cpp b/lib/AST/DeclPrinter.cpp
index 5c6002d55c..6a3e8e2ae1 100644
--- a/lib/AST/DeclPrinter.cpp
+++ b/lib/AST/DeclPrinter.cpp
@@ -751,7 +751,10 @@ void DeclPrinter::VisitVarDecl(VarDecl *D) {
       else if (D->getInitStyle() == VarDecl::CInit) {
         Out << " = ";
       }
-      Init->printPretty(Out, nullptr, Policy, Indentation);
+      PrintingPolicy SubPolicy(Policy);
+      SubPolicy.SuppressSpecifiers = false;
+      SubPolicy.SuppressTag = false;
+      Init->printPretty(Out, nullptr, SubPolicy, Indentation);
       if ((D->getInitStyle() == VarDecl::CallInit) && !isa<ParenListExpr>(Init))
         Out << ")";
     }
diff --git a/test/Sema/ast-print.c b/test/Sema/ast-print.c
index b4d76844fe..b0e421410b 100644
--- a/test/Sema/ast-print.c
+++ b/test/Sema/ast-print.c
@@ -53,3 +53,13 @@ struct pair_t {
 
 // CHECK: struct pair_t p = {a: 3, .b = 4};
 struct pair_t p = {a: 3, .b = 4};
+
+void initializers() {
+  // CHECK: int *x = ((void *)0), *y = ((void *)0);
+  int *x = ((void *)0), *y = ((void *)0);
+  struct Z{};
+  struct {
+    struct Z z;
+  // CHECK: } z = {(struct Z){}};
+  } z = {(struct Z){}};
+}