Move statement instantiation into its own file. No functionality change

llvm-svn: 71872

1 files changed, 2 insertions, 132 deletions

diff --git a/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp b/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
index 401075da3f7..3926397dc2f 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateExpr.cpp
@@ -1,4 +1,4 @@
-//===--- SemaTemplateInstantiateDecl.cpp - C++ Template Decl Instantiation ===/
+//===--- SemaTemplateInstantiateExpr.cpp - C++ Template Expr Instantiation ===/
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -6,7 +6,7 @@
 // License. See LICENSE.TXT for details.
 //===----------------------------------------------------------------------===/
 //
-//  This file implements C++ template instantiation for declarations.
+//  This file implements C++ template instantiation for expressions.
 //
 //===----------------------------------------------------------------------===/
 #include "Sema.h"
@@ -423,133 +423,3 @@ Sema::InstantiateExpr(Expr *E, const TemplateArgumentList &TemplateArgs) {
   TemplateExprInstantiator Instantiator(*this, TemplateArgs);
   return Instantiator.Visit(E);
 }
-
-namespace {
-  class VISIBILITY_HIDDEN TemplateStmtInstantiator 
-    : public StmtVisitor<TemplateStmtInstantiator, Sema::OwningStmtResult> {
-    Sema &SemaRef;
-    const TemplateArgumentList &TemplateArgs;
-
-  public:
-    typedef Sema::OwningExprResult OwningExprResult;
-    typedef Sema::OwningStmtResult OwningStmtResult;
-
-    TemplateStmtInstantiator(Sema &SemaRef, 
-                             const TemplateArgumentList &TemplateArgs)
-      : SemaRef(SemaRef), TemplateArgs(TemplateArgs) { }
-
-    // FIXME: Once we get closer to completion, replace these
-    // manually-written declarations with automatically-generated ones
-    // from clang/AST/StmtNodes.def.
-    OwningStmtResult VisitDeclStmt(DeclStmt *S);
-    OwningStmtResult VisitNullStmt(NullStmt *S);
-    OwningStmtResult VisitCompoundStmt(CompoundStmt *S);
-    OwningStmtResult VisitExpr(Expr *E);
-    OwningStmtResult VisitLabelStmt(LabelStmt *S);
-    OwningStmtResult VisitGotoStmt(GotoStmt *S);
-    OwningStmtResult VisitReturnStmt(ReturnStmt *S);
-
-    // Base case. I'm supposed to ignore this.
-    OwningStmtResult VisitStmt(Stmt *S) { 
-      S->dump();
-      assert(false && "Cannot instantiate this kind of statement");
-      return SemaRef.StmtError(); 
-    }
-  };
-}
-
-Sema::OwningStmtResult TemplateStmtInstantiator::VisitDeclStmt(DeclStmt *S) {
-  llvm::SmallVector<Decl *, 8> Decls;
-  for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
-       D != DEnd; ++D) {
-    Decl *Instantiated = SemaRef.InstantiateDecl(*D, SemaRef.CurContext, 
-                                                 TemplateArgs);
-    if (!Instantiated)
-      return SemaRef.StmtError();
-
-    Decls.push_back(Instantiated);
-    SemaRef.CurrentInstantiationScope->InstantiatedLocal(cast<VarDecl>(*D),
-                                                  cast<VarDecl>(Instantiated));
-  }
-
-  return SemaRef.Owned(new (SemaRef.Context) DeclStmt(
-                                         DeclGroupRef::Create(SemaRef.Context,
-                                                              &Decls[0],
-                                                              Decls.size()),
-                                                      S->getStartLoc(),
-                                                      S->getEndLoc()));
-}
-
-Sema::OwningStmtResult TemplateStmtInstantiator::VisitNullStmt(NullStmt *S) {
-  return SemaRef.Owned(S->Clone(SemaRef.Context));
-}
-
-Sema::OwningStmtResult TemplateStmtInstantiator::VisitLabelStmt(LabelStmt *S) {
-  OwningStmtResult SubStmt = Visit(S->getSubStmt());
-
-  if (SubStmt.isInvalid())
-    return SemaRef.StmtError();
-  
-  // FIXME: Pass the real colon loc in.
-  return SemaRef.ActOnLabelStmt(S->getIdentLoc(), S->getID(), SourceLocation(), 
-                                move(SubStmt));
-}
-
-Sema::OwningStmtResult TemplateStmtInstantiator::VisitGotoStmt(GotoStmt *S) {
-  return SemaRef.ActOnGotoStmt(S->getGotoLoc(), S->getLabelLoc(), 
-                               S->getLabel()->getID());
-}
-
-Sema::OwningStmtResult
-TemplateStmtInstantiator::VisitReturnStmt(ReturnStmt *S) {
-  Sema::OwningExprResult Result = SemaRef.ExprEmpty();
-  if (Expr *E = S->getRetValue()) {
-    Result = SemaRef.InstantiateExpr(E, TemplateArgs);
-    
-    if (Result.isInvalid())
-      return SemaRef.StmtError();
-  }
-  
-  return SemaRef.ActOnReturnStmt(S->getReturnLoc(), move(Result));
-}
-
-Sema::OwningStmtResult 
-TemplateStmtInstantiator::VisitCompoundStmt(CompoundStmt *S) {
-  // FIXME: We need an *easy* RAII way to delete these statements if
-  // something goes wrong.
-  llvm::SmallVector<Stmt *, 16> Statements;
-  
-  for (CompoundStmt::body_iterator B = S->body_begin(), BEnd = S->body_end();
-       B != BEnd; ++B) {
-    OwningStmtResult Result = Visit(*B);
-    if (Result.isInvalid()) {
-      // FIXME: This should be handled by an RAII destructor.
-      for (unsigned I = 0, N = Statements.size(); I != N; ++I)
-        Statements[I]->Destroy(SemaRef.Context);
-      return SemaRef.StmtError();
-    }
-
-    Statements.push_back(Result.takeAs<Stmt>());
-  }
-
-  return SemaRef.Owned(
-           new (SemaRef.Context) CompoundStmt(SemaRef.Context,
-                                              &Statements[0], 
-                                              Statements.size(),
-                                              S->getLBracLoc(),
-                                              S->getRBracLoc()));
-}
-
-Sema::OwningStmtResult TemplateStmtInstantiator::VisitExpr(Expr *E) {
-  Sema::OwningExprResult Result = SemaRef.InstantiateExpr(E, TemplateArgs);
-  if (Result.isInvalid())
-    return SemaRef.StmtError();
-  
-  return SemaRef.Owned(Result.takeAs<Stmt>());
-}
-
-Sema::OwningStmtResult 
-Sema::InstantiateStmt(Stmt *S, const TemplateArgumentList &TemplateArgs) {
-  TemplateStmtInstantiator Instantiator(*this, TemplateArgs);
-  return Instantiator.Visit(S);
-}