[PATCH] D83855: [clang] Fix printing of lambdas with capture expressions

[Ilya Golovenko via Phabricator via cfe-commits]

walrus updated this revision to Diff 278420.
walrus added a comment.

Simplify if..else statement, add braces


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D83855/new/

https://reviews.llvm.org/D83855

Files:
  clang/lib/AST/StmtPrinter.cpp
  clang/test/AST/ast-printer-lambda.cpp


Index: clang/test/AST/ast-printer-lambda.cpp
===================================================================
--- clang/test/AST/ast-printer-lambda.cpp
+++ clang/test/AST/ast-printer-lambda.cpp
@@ -15,6 +15,18 @@
   auto lambda = [&]{};
   //CHECK: [&] {
 }
+{
+  auto lambda = [k{i}] {};
+  //CHECK: [k{i}] {
+}
+{
+  auto lambda = [k(i)] {};
+  //CHECK: [k(i)] {
+}
+{
+  auto lambda = [k = i] {};
+  //CHECK: [k = i] {
+}
 {
   auto lambda = [t..., i]{};
   //CHECK: [t..., i] {
@@ -31,6 +43,14 @@
   auto lambda = [t..., this]{};
   //CHECK: [t..., this] {
 }
+{
+  auto lambda = [k(t...)] {};
+  //CHECK: [k(t...)] {
+}
+{
+  auto lambda = [k{t...}] {};
+  //CHECK: [k{t...}] {
+}
 }
 
 };
\ No newline at end of file
Index: clang/lib/AST/StmtPrinter.cpp
===================================================================
--- clang/lib/AST/StmtPrinter.cpp
+++ clang/lib/AST/StmtPrinter.cpp
@@ -2005,8 +2005,23 @@
     if (C->isPackExpansion())
       OS << "...";
 
-    if (Node->isInitCapture(C))
-      PrintExpr(C->getCapturedVar()->getInit());
+    if (Node->isInitCapture(C)) {
+      VarDecl *D = C->getCapturedVar();
+
+      llvm::StringRef Pre;
+      llvm::StringRef Post;
+      if (D->getInitStyle() == VarDecl::CallInit &&
+          !isa<ParenListExpr>(D->getInit())) {
+        Pre = "(";
+        Post = ")";
+      } else if (D->getInitStyle() == VarDecl::CInit) {
+        Pre = " = ";
+      }
+
+      OS << Pre;
+      PrintExpr(D->getInit());
+      OS << Post;
+    }
   }
   OS << ']';
 


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D83855.278420.patch
Type: text/x-patch
Size: 1522 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20200716/5aa66ca1/attachment.bin>