malcolm.parsons updated this revision to Diff 74131.
malcolm.parsons added a comment.
Only insert whitespace when removing stars
https://reviews.llvm.org/D25406
Files:
clang-tidy/modernize/UseAutoCheck.cpp
clang-tidy/modernize/UseAutoCheck.h
test/clang-tidy/modernize-use-auto-new-remove-stars.cpp
Index: test/clang-tidy/modernize-use-auto-new-remove-stars.cpp
===================================================================
--- test/clang-tidy/modernize-use-auto-new-remove-stars.cpp
+++ test/clang-tidy/modernize-use-auto-new-remove-stars.cpp
@@ -6,8 +6,6 @@
class MyDerivedType : public MyType {};
-// FIXME: the replacement sometimes results in two consecutive spaces after
-// the word 'auto' (due to the presence of spaces at both sides of '*').
void auto_new() {
MyType *a_new = new MyType();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
@@ -29,15 +27,15 @@
// not "MyType * const".
static MyType * const d_static = new MyType();
// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: use auto when initializing with new
- // CHECK-FIXES: static auto const d_static = new MyType();
+ // CHECK-FIXES: static auto const d_static = new MyType();
MyType * const a_const = new MyType();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
- // CHECK-FIXES: auto const a_const = new MyType();
+ // CHECK-FIXES: auto const a_const = new MyType();
MyType * volatile vol = new MyType();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
- // CHECK-FIXES: auto volatile vol = new MyType();
+ // CHECK-FIXES: auto volatile vol = new MyType();
struct SType {} *stype = new SType;
@@ -81,15 +79,15 @@
int_p a = new int;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
- // CHECK-FIXES: auto a = new int;
+ // CHECK-FIXES: auto a = new int;
int_p *b = new int*;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
// CHECK-FIXES: auto b = new int*;
// Test for typedefs in declarations lists.
int_p c = new int, d = new int;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
- // CHECK-FIXES: auto c = new int, d = new int;
+ // CHECK-FIXES: auto c = new int, d = new int;
// Different types should not be transformed.
int_p e = new int, *f = new int_p;
Index: clang-tidy/modernize/UseAutoCheck.h
===================================================================
--- clang-tidy/modernize/UseAutoCheck.h
+++ clang-tidy/modernize/UseAutoCheck.h
@@ -25,7 +25,7 @@
private:
void replaceIterators(const DeclStmt *D, ASTContext *Context);
- void replaceNew(const DeclStmt *D, ASTContext *Context);
+ void replaceNew(const DeclStmt *D, ASTContext *Context, SourceManager &SM);
const bool RemoveStars;
};
Index: clang-tidy/modernize/UseAutoCheck.cpp
===================================================================
--- clang-tidy/modernize/UseAutoCheck.cpp
+++ clang-tidy/modernize/UseAutoCheck.cpp
@@ -11,6 +11,7 @@
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Lex/Lexer.h"
using namespace clang;
using namespace clang::ast_matchers;
@@ -313,7 +314,8 @@
<< FixItHint::CreateReplacement(Range, "auto");
}
-void UseAutoCheck::replaceNew(const DeclStmt *D, ASTContext *Context) {
+void UseAutoCheck::replaceNew(const DeclStmt *D, ASTContext *Context,
+ SourceManager &SM) {
const auto *FirstDecl = dyn_cast<VarDecl>(*D->decl_begin());
// Ensure that there is at least one VarDecl within the DeclStmt.
if (!FirstDecl)
@@ -371,18 +373,23 @@
auto Diag = diag(Range.getBegin(), "use auto when initializing with new"
" to avoid duplicating the type name");
+ SourceLocation Next =
+ Lexer::getLocForEndOfToken(Range.getEnd(), 0, SM, Context->getLangOpts());
+ bool Whitespace = isWhitespace(*FullSourceLoc(Next, SM).getCharacterData());
+
// Space after 'auto' to handle cases where the '*' in the pointer type is
// next to the identifier. This avoids changing 'int *p' into 'autop'.
- Diag << FixItHint::CreateReplacement(Range, RemoveStars ? "auto " : "auto")
+ Diag << FixItHint::CreateReplacement(
+ Range, (Whitespace || !RemoveStars) ? "auto" : "auto ")
<< StarRemovals;
}
void UseAutoCheck::check(const MatchFinder::MatchResult &Result) {
if (const auto *Decl = Result.Nodes.getNodeAs<DeclStmt>(IteratorDeclStmtId)) {
replaceIterators(Decl, Result.Context);
} else if (const auto *Decl =
Result.Nodes.getNodeAs<DeclStmt>(DeclWithNewId)) {
- replaceNew(Decl, Result.Context);
+ replaceNew(Decl, Result.Context, *Result.SourceManager);
} else {
llvm_unreachable("Bad Callback. No node provided.");
}
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