[clang] 40ce58d - Revert "[clang] Refactor AST printing tests to share more infrastructure"

David Green via cfe-commits cfe-commits at lists.llvm.org
Tue Jul 13 20:41:00 PDT 2021


Author: David Green
Date: 2021-07-14T04:40:47+01:00
New Revision: 40ce58d0ca10a1195da82895749b67f30f000243

URL: https://github.com/llvm/llvm-project/commit/40ce58d0ca10a1195da82895749b67f30f000243
DIFF: https://github.com/llvm/llvm-project/commit/40ce58d0ca10a1195da82895749b67f30f000243.diff

LOG: Revert "[clang] Refactor AST printing tests to share more infrastructure"

This reverts commit 20176bc7dd3f431db4c3d59b51a9f53d52190c82 as some
versions of GCC do not seem to handle the new code very well. They
complain about:

/tmp/ccqUQZyw.s: Assembler messages:
/tmp/ccqUQZyw.s:1151: Error: symbol `_ZNSt14_Function_base13_Base_managerIN5clangUlPKNS1_4StmtEE2_EE10_M_managerERSt9_Any_dataRKS7_St18_Manager_operation' is already defined
/tmp/ccqUQZyw.s:11963: Error: symbol `_ZNSt17_Function_handlerIFbPKN5clang4StmtEENS0_UlS3_E2_EE9_M_invokeERKSt9_Any_dataOS3_' is already defined

This seems like it is some GCC issue, but multiple buildbots (and my
local machine) are all failing because of it.

Added: 
    

Modified: 
    clang/unittests/AST/ASTPrint.h
    clang/unittests/AST/DeclPrinterTest.cpp
    clang/unittests/AST/NamedDeclPrinterTest.cpp
    clang/unittests/AST/StmtPrinterTest.cpp

Removed: 
    


################################################################################
diff  --git a/clang/unittests/AST/ASTPrint.h b/clang/unittests/AST/ASTPrint.h
index 0e35846c86f47..c3b6b842316d9 100644
--- a/clang/unittests/AST/ASTPrint.h
+++ b/clang/unittests/AST/ASTPrint.h
@@ -19,88 +19,72 @@
 
 namespace clang {
 
-using PrintingPolicyAdjuster = llvm::function_ref<void(PrintingPolicy &Policy)>;
-
-template <typename NodeType>
-using NodePrinter =
-    std::function<void(llvm::raw_ostream &Out, const ASTContext *Context,
-                       const NodeType *Node,
-                       PrintingPolicyAdjuster PolicyAdjuster)>;
-
-template <typename NodeType>
-using NodeFilter = std::function<bool(const NodeType *Node)>;
+using PolicyAdjusterType =
+    Optional<llvm::function_ref<void(PrintingPolicy &Policy)>>;
+
+static void PrintStmt(raw_ostream &Out, const ASTContext *Context,
+                      const Stmt *S, PolicyAdjusterType PolicyAdjuster) {
+  assert(S != nullptr && "Expected non-null Stmt");
+  PrintingPolicy Policy = Context->getPrintingPolicy();
+  if (PolicyAdjuster)
+    (*PolicyAdjuster)(Policy);
+  S->printPretty(Out, /*Helper*/ nullptr, Policy);
+}
 
-template <typename NodeType>
 class PrintMatch : public ast_matchers::MatchFinder::MatchCallback {
-  using PrinterT = NodePrinter<NodeType>;
-  using FilterT = NodeFilter<NodeType>;
-
   SmallString<1024> Printed;
-  unsigned NumFoundNodes;
-  PrinterT Printer;
-  FilterT Filter;
-  PrintingPolicyAdjuster PolicyAdjuster;
+  unsigned NumFoundStmts;
+  PolicyAdjusterType PolicyAdjuster;
 
 public:
-  PrintMatch(PrinterT Printer, PrintingPolicyAdjuster PolicyAdjuster,
-             FilterT Filter)
-      : NumFoundNodes(0), Printer(std::move(Printer)),
-        Filter(std::move(Filter)), PolicyAdjuster(PolicyAdjuster) {}
+  PrintMatch(PolicyAdjusterType PolicyAdjuster)
+      : NumFoundStmts(0), PolicyAdjuster(PolicyAdjuster) {}
 
   void run(const ast_matchers::MatchFinder::MatchResult &Result) override {
-    const NodeType *N = Result.Nodes.getNodeAs<NodeType>("id");
-    if (!N || !Filter(N))
+    const Stmt *S = Result.Nodes.getNodeAs<Stmt>("id");
+    if (!S)
       return;
-    NumFoundNodes++;
-    if (NumFoundNodes > 1)
+    NumFoundStmts++;
+    if (NumFoundStmts > 1)
       return;
 
     llvm::raw_svector_ostream Out(Printed);
-    Printer(Out, Result.Context, N, PolicyAdjuster);
+    PrintStmt(Out, Result.Context, S, PolicyAdjuster);
   }
 
   StringRef getPrinted() const { return Printed; }
 
-  unsigned getNumFoundNodes() const { return NumFoundNodes; }
+  unsigned getNumFoundStmts() const { return NumFoundStmts; }
 };
 
-template <typename NodeType, typename Matcher>
-::testing::AssertionResult PrintedNodeMatches(
-    StringRef Code, const std::vector<std::string> &Args,
-    const Matcher &NodeMatch, StringRef ExpectedPrinted, StringRef FileName,
-    NodePrinter<NodeType> Printer,
-    PrintingPolicyAdjuster PolicyAdjuster = nullptr, bool AllowError = false,
-    NodeFilter<NodeType> Filter = [](const NodeType *) { return true; }) {
+template <typename T>
+::testing::AssertionResult
+PrintedStmtMatches(StringRef Code, const std::vector<std::string> &Args,
+                   const T &NodeMatch, StringRef ExpectedPrinted,
+                   PolicyAdjusterType PolicyAdjuster = None) {
 
-  PrintMatch<NodeType> Callback(Printer, PolicyAdjuster, Filter);
+  PrintMatch Printer(PolicyAdjuster);
   ast_matchers::MatchFinder Finder;
-  Finder.addMatcher(NodeMatch, &Callback);
+  Finder.addMatcher(NodeMatch, &Printer);
   std::unique_ptr<tooling::FrontendActionFactory> Factory(
       tooling::newFrontendActionFactory(&Finder));
 
-  bool ToolResult;
-  if (FileName.empty()) {
-    ToolResult = tooling::runToolOnCodeWithArgs(Factory->create(), Code, Args);
-  } else {
-    ToolResult =
-        tooling::runToolOnCodeWithArgs(Factory->create(), Code, Args, FileName);
-  }
-  if (!ToolResult && !AllowError)
+  if (!tooling::runToolOnCodeWithArgs(Factory->create(), Code, Args))
     return testing::AssertionFailure()
            << "Parsing error in \"" << Code.str() << "\"";
 
-  if (Callback.getNumFoundNodes() == 0)
-    return testing::AssertionFailure() << "Matcher didn't find any nodes";
+  if (Printer.getNumFoundStmts() == 0)
+    return testing::AssertionFailure() << "Matcher didn't find any statements";
 
-  if (Callback.getNumFoundNodes() > 1)
+  if (Printer.getNumFoundStmts() > 1)
     return testing::AssertionFailure()
-           << "Matcher should match only one node (found "
-           << Callback.getNumFoundNodes() << ")";
+           << "Matcher should match only one statement (found "
+           << Printer.getNumFoundStmts() << ")";
 
-  if (Callback.getPrinted() != ExpectedPrinted)
+  if (Printer.getPrinted() != ExpectedPrinted)
     return ::testing::AssertionFailure()
            << "Expected \"" << ExpectedPrinted.str() << "\", got \""
-           << Callback.getPrinted().str() << "\"";
+           << Printer.getPrinted().str() << "\"";
 
   return ::testing::AssertionSuccess();
 }

diff  --git a/clang/unittests/AST/DeclPrinterTest.cpp b/clang/unittests/AST/DeclPrinterTest.cpp
index bdc23f33f39b0..e70d2bef72121 100644
--- a/clang/unittests/AST/DeclPrinterTest.cpp
+++ b/clang/unittests/AST/DeclPrinterTest.cpp
@@ -18,7 +18,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "ASTPrint.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
 #include "clang/ASTMatchers/ASTMatchers.h"
@@ -33,8 +32,10 @@ using namespace tooling;
 
 namespace {
 
+using PrintingPolicyModifier = void (*)(PrintingPolicy &policy);
+
 void PrintDecl(raw_ostream &Out, const ASTContext *Context, const Decl *D,
-               PrintingPolicyAdjuster PolicyModifier) {
+               PrintingPolicyModifier PolicyModifier) {
   PrintingPolicy Policy = Context->getPrintingPolicy();
   Policy.TerseOutput = true;
   Policy.Indentation = 0;
@@ -43,23 +44,74 @@ void PrintDecl(raw_ostream &Out, const ASTContext *Context, const Decl *D,
   D->print(Out, Policy, /*Indentation*/ 0, /*PrintInstantiation*/ false);
 }
 
+class PrintMatch : public MatchFinder::MatchCallback {
+  SmallString<1024> Printed;
+  unsigned NumFoundDecls;
+  PrintingPolicyModifier PolicyModifier;
+
+public:
+  PrintMatch(PrintingPolicyModifier PolicyModifier)
+      : NumFoundDecls(0), PolicyModifier(PolicyModifier) {}
+
+  void run(const MatchFinder::MatchResult &Result) override {
+    const Decl *D = Result.Nodes.getNodeAs<Decl>("id");
+    if (!D || D->isImplicit())
+      return;
+    NumFoundDecls++;
+    if (NumFoundDecls > 1)
+      return;
+
+    llvm::raw_svector_ostream Out(Printed);
+    PrintDecl(Out, Result.Context, D, PolicyModifier);
+  }
+
+  StringRef getPrinted() const {
+    return Printed;
+  }
+
+  unsigned getNumFoundDecls() const {
+    return NumFoundDecls;
+  }
+};
+
 ::testing::AssertionResult
 PrintedDeclMatches(StringRef Code, const std::vector<std::string> &Args,
                    const DeclarationMatcher &NodeMatch,
                    StringRef ExpectedPrinted, StringRef FileName,
-                   PrintingPolicyAdjuster PolicyModifier = nullptr,
+                   PrintingPolicyModifier PolicyModifier = nullptr,
                    bool AllowError = false) {
-  return PrintedNodeMatches<Decl>(
-      Code, Args, NodeMatch, ExpectedPrinted, FileName, PrintDecl,
-      PolicyModifier, AllowError,
-      // Filter out implicit decls
-      [](const Decl *D) { return !D->isImplicit(); });
+  PrintMatch Printer(PolicyModifier);
+  MatchFinder Finder;
+  Finder.addMatcher(NodeMatch, &Printer);
+  std::unique_ptr<FrontendActionFactory> Factory(
+      newFrontendActionFactory(&Finder));
+
+  if (!runToolOnCodeWithArgs(Factory->create(), Code, Args, FileName) &&
+      !AllowError)
+    return testing::AssertionFailure()
+      << "Parsing error in \"" << Code.str() << "\"";
+
+  if (Printer.getNumFoundDecls() == 0)
+    return testing::AssertionFailure()
+        << "Matcher didn't find any declarations";
+
+  if (Printer.getNumFoundDecls() > 1)
+    return testing::AssertionFailure()
+        << "Matcher should match only one declaration "
+           "(found " << Printer.getNumFoundDecls() << ")";
+
+  if (Printer.getPrinted() != ExpectedPrinted)
+    return ::testing::AssertionFailure()
+      << "Expected \"" << ExpectedPrinted.str() << "\", "
+         "got \"" << Printer.getPrinted().str() << "\"";
+
+  return ::testing::AssertionSuccess();
 }
 
 ::testing::AssertionResult
 PrintedDeclCXX98Matches(StringRef Code, StringRef DeclName,
                         StringRef ExpectedPrinted,
-                        PrintingPolicyAdjuster PolicyModifier = nullptr) {
+                        PrintingPolicyModifier PolicyModifier = nullptr) {
   std::vector<std::string> Args(1, "-std=c++98");
   return PrintedDeclMatches(Code, Args, namedDecl(hasName(DeclName)).bind("id"),
                             ExpectedPrinted, "input.cc", PolicyModifier);
@@ -68,7 +120,7 @@ PrintedDeclCXX98Matches(StringRef Code, StringRef DeclName,
 ::testing::AssertionResult
 PrintedDeclCXX98Matches(StringRef Code, const DeclarationMatcher &NodeMatch,
                         StringRef ExpectedPrinted,
-                        PrintingPolicyAdjuster PolicyModifier = nullptr) {
+                        PrintingPolicyModifier PolicyModifier = nullptr) {
   std::vector<std::string> Args(1, "-std=c++98");
   return PrintedDeclMatches(Code,
                             Args,
@@ -113,7 +165,7 @@ ::testing::AssertionResult PrintedDeclCXX11nonMSCMatches(
 ::testing::AssertionResult
 PrintedDeclCXX17Matches(StringRef Code, const DeclarationMatcher &NodeMatch,
                         StringRef ExpectedPrinted,
-                        PrintingPolicyAdjuster PolicyModifier = nullptr) {
+                        PrintingPolicyModifier PolicyModifier = nullptr) {
   std::vector<std::string> Args{"-std=c++17", "-fno-delayed-template-parsing"};
   return PrintedDeclMatches(Code, Args, NodeMatch, ExpectedPrinted, "input.cc",
                             PolicyModifier);
@@ -122,7 +174,7 @@ PrintedDeclCXX17Matches(StringRef Code, const DeclarationMatcher &NodeMatch,
 ::testing::AssertionResult
 PrintedDeclC11Matches(StringRef Code, const DeclarationMatcher &NodeMatch,
                       StringRef ExpectedPrinted,
-                      PrintingPolicyAdjuster PolicyModifier = nullptr) {
+                      PrintingPolicyModifier PolicyModifier = nullptr) {
   std::vector<std::string> Args(1, "-std=c11");
   return PrintedDeclMatches(Code, Args, NodeMatch, ExpectedPrinted, "input.c",
                             PolicyModifier);

diff  --git a/clang/unittests/AST/NamedDeclPrinterTest.cpp b/clang/unittests/AST/NamedDeclPrinterTest.cpp
index cd833725b448d..1042312e8a730 100644
--- a/clang/unittests/AST/NamedDeclPrinterTest.cpp
+++ b/clang/unittests/AST/NamedDeclPrinterTest.cpp
@@ -15,7 +15,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "ASTPrint.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/PrettyPrinter.h"
@@ -67,11 +66,31 @@ ::testing::AssertionResult PrintedDeclMatches(
     const DeclarationMatcher &NodeMatch, StringRef ExpectedPrinted,
     StringRef FileName,
     std::function<void(llvm::raw_ostream &, const NamedDecl *)> Print) {
-  return PrintedNodeMatches<NamedDecl>(
-      Code, Args, NodeMatch, ExpectedPrinted, FileName,
-      [Print](llvm::raw_ostream &Out, const ASTContext *Context,
-              const NamedDecl *ND,
-              PrintingPolicyAdjuster PolicyAdjuster) { Print(Out, ND); });
+  PrintMatch Printer(std::move(Print));
+  MatchFinder Finder;
+  Finder.addMatcher(NodeMatch, &Printer);
+  std::unique_ptr<FrontendActionFactory> Factory =
+      newFrontendActionFactory(&Finder);
+
+  if (!runToolOnCodeWithArgs(Factory->create(), Code, Args, FileName))
+    return testing::AssertionFailure()
+        << "Parsing error in \"" << Code.str() << "\"";
+
+  if (Printer.getNumFoundDecls() == 0)
+    return testing::AssertionFailure()
+        << "Matcher didn't find any named declarations";
+
+  if (Printer.getNumFoundDecls() > 1)
+    return testing::AssertionFailure()
+        << "Matcher should match only one named declaration "
+           "(found " << Printer.getNumFoundDecls() << ")";
+
+  if (Printer.getPrinted() != ExpectedPrinted)
+    return ::testing::AssertionFailure()
+        << "Expected \"" << ExpectedPrinted.str() << "\", "
+           "got \"" << Printer.getPrinted().str() << "\"";
+
+  return ::testing::AssertionSuccess();
 }
 
 ::testing::AssertionResult

diff  --git a/clang/unittests/AST/StmtPrinterTest.cpp b/clang/unittests/AST/StmtPrinterTest.cpp
index 65dfec4cc5b4a..29cdbf75a00c8 100644
--- a/clang/unittests/AST/StmtPrinterTest.cpp
+++ b/clang/unittests/AST/StmtPrinterTest.cpp
@@ -38,29 +38,11 @@ DeclarationMatcher FunctionBodyMatcher(StringRef ContainingFunction) {
                       has(compoundStmt(has(stmt().bind("id")))));
 }
 
-static void PrintStmt(raw_ostream &Out, const ASTContext *Context,
-                      const Stmt *S, PrintingPolicyAdjuster PolicyAdjuster) {
-  assert(S != nullptr && "Expected non-null Stmt");
-  PrintingPolicy Policy = Context->getPrintingPolicy();
-  if (PolicyAdjuster)
-    PolicyAdjuster(Policy);
-  S->printPretty(Out, /*Helper*/ nullptr, Policy);
-}
-
-template <typename Matcher>
-::testing::AssertionResult
-PrintedStmtMatches(StringRef Code, const std::vector<std::string> &Args,
-                   const Matcher &NodeMatch, StringRef ExpectedPrinted,
-                   PrintingPolicyAdjuster PolicyAdjuster = nullptr) {
-  return PrintedNodeMatches<Stmt>(Code, Args, NodeMatch, ExpectedPrinted, "",
-                                  PrintStmt, PolicyAdjuster);
-}
-
 template <typename T>
 ::testing::AssertionResult
 PrintedStmtCXXMatches(StdVer Standard, StringRef Code, const T &NodeMatch,
                       StringRef ExpectedPrinted,
-                      PrintingPolicyAdjuster PolicyAdjuster = nullptr) {
+                      PolicyAdjusterType PolicyAdjuster = None) {
   const char *StdOpt;
   switch (Standard) {
   case StdVer::CXX98: StdOpt = "-std=c++98"; break;
@@ -82,7 +64,7 @@ template <typename T>
 ::testing::AssertionResult
 PrintedStmtMSMatches(StringRef Code, const T &NodeMatch,
                      StringRef ExpectedPrinted,
-                     PrintingPolicyAdjuster PolicyAdjuster = nullptr) {
+                     PolicyAdjusterType PolicyAdjuster = None) {
   std::vector<std::string> Args = {
     "-std=c++98",
     "-target", "i686-pc-win32",
@@ -97,7 +79,7 @@ template <typename T>
 ::testing::AssertionResult
 PrintedStmtObjCMatches(StringRef Code, const T &NodeMatch,
                        StringRef ExpectedPrinted,
-                       PrintingPolicyAdjuster PolicyAdjuster = nullptr) {
+                       PolicyAdjusterType PolicyAdjuster = None) {
   std::vector<std::string> Args = {
     "-ObjC",
     "-fobjc-runtime=macosx-10.12.0",
@@ -220,10 +202,10 @@ class A {
 };
 )";
   // No implicit 'this'.
-  ASSERT_TRUE(PrintedStmtCXXMatches(
-      StdVer::CXX11, CPPSource, memberExpr(anything()).bind("id"), "field",
-
-      [](PrintingPolicy &PP) { PP.SuppressImplicitBase = true; }));
+  ASSERT_TRUE(PrintedStmtCXXMatches(StdVer::CXX11,
+      CPPSource, memberExpr(anything()).bind("id"), "field",
+      PolicyAdjusterType(
+          [](PrintingPolicy &PP) { PP.SuppressImplicitBase = true; })));
   // Print implicit 'this'.
   ASSERT_TRUE(PrintedStmtCXXMatches(StdVer::CXX11,
       CPPSource, memberExpr(anything()).bind("id"), "this->field"));
@@ -240,10 +222,11 @@ class A {
 @end
       )";
   // No implicit 'self'.
-  ASSERT_TRUE(PrintedStmtObjCMatches(
-      ObjCSource, returnStmt().bind("id"), "return ivar;\n",
-
-      [](PrintingPolicy &PP) { PP.SuppressImplicitBase = true; }));
+  ASSERT_TRUE(PrintedStmtObjCMatches(ObjCSource, returnStmt().bind("id"),
+                                     "return ivar;\n",
+                                     PolicyAdjusterType([](PrintingPolicy &PP) {
+                                       PP.SuppressImplicitBase = true;
+                                     })));
   // Print implicit 'self'.
   ASSERT_TRUE(PrintedStmtObjCMatches(ObjCSource, returnStmt().bind("id"),
                                      "return self->ivar;\n"));
@@ -260,6 +243,5 @@ TEST(StmtPrinter, TerseOutputWithLambdas) {
   // body not printed when TerseOutput is on.
   ASSERT_TRUE(PrintedStmtCXXMatches(
       StdVer::CXX11, CPPSource, lambdaExpr(anything()).bind("id"), "[] {}",
-
-      [](PrintingPolicy &PP) { PP.TerseOutput = true; }));
+      PolicyAdjusterType([](PrintingPolicy &PP) { PP.TerseOutput = true; })));
 }


        


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