[PATCH] D62621: [LibTooling] Add insert/remove convenience functions for creating `ASTEdit`s.

[Yitzhak Mandelbaum via Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL362707: [LibTooling] Add insert/remove convenience functions for creating `ASTEdit`s. (authored by ymandel, committed by ).
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Changed prior to commit:
  https://reviews.llvm.org/D62621?vs=203122&id=203351#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62621/new/

https://reviews.llvm.org/D62621

Files:
  cfe/trunk/include/clang/Tooling/Refactoring/Transformer.h
  cfe/trunk/unittests/Tooling/TransformerTest.cpp


Index: cfe/trunk/unittests/Tooling/TransformerTest.cpp
===================================================================
--- cfe/trunk/unittests/Tooling/TransformerTest.cpp
+++ cfe/trunk/unittests/Tooling/TransformerTest.cpp
@@ -349,6 +349,64 @@
            Input, Expected);
 }
 
+TEST_F(TransformerTest, InsertBeforeEdit) {
+  std::string Input = R"cc(
+    int f() {
+      return 7;
+    }
+  )cc";
+  std::string Expected = R"cc(
+    int f() {
+      int y = 3;
+      return 7;
+    }
+  )cc";
+
+  StringRef Ret = "return";
+  testRule(makeRule(returnStmt().bind(Ret),
+                    insertBefore(statement(Ret), text("int y = 3;"))),
+           Input, Expected);
+}
+
+TEST_F(TransformerTest, InsertAfterEdit) {
+  std::string Input = R"cc(
+    int f() {
+      int x = 5;
+      return 7;
+    }
+  )cc";
+  std::string Expected = R"cc(
+    int f() {
+      int x = 5;
+      int y = 3;
+      return 7;
+    }
+  )cc";
+
+  StringRef Decl = "decl";
+  testRule(makeRule(declStmt().bind(Decl),
+                    insertAfter(statement(Decl), text("int y = 3;"))),
+           Input, Expected);
+}
+
+TEST_F(TransformerTest, RemoveEdit) {
+  std::string Input = R"cc(
+    int f() {
+      int x = 5;
+      return 7;
+    }
+  )cc";
+  std::string Expected = R"cc(
+    int f() {
+      return 7;
+    }
+  )cc";
+
+  StringRef Decl = "decl";
+  testRule(makeRule(declStmt().bind(Decl), remove(statement(Decl))), Input,
+           Expected);
+}
+
 TEST_F(TransformerTest, MultiChange) {
   std::string Input = R"cc(
     void foo() {
Index: cfe/trunk/include/clang/Tooling/Refactoring/Transformer.h
===================================================================
--- cfe/trunk/include/clang/Tooling/Refactoring/Transformer.h
+++ cfe/trunk/include/clang/Tooling/Refactoring/Transformer.h
@@ -193,6 +193,23 @@
   return change(node(RewriteRule::RootID), std::move(Replacement));
 }
 
+/// Inserts \p Replacement before \p S, leaving the source selected by \S
+/// unchanged.
+inline ASTEdit insertBefore(RangeSelector S, TextGenerator Replacement) {
+  return change(before(std::move(S)), std::move(Replacement));
+}
+
+/// Inserts \p Replacement after \p S, leaving the source selected by \S
+/// unchanged.
+inline ASTEdit insertAfter(RangeSelector S, TextGenerator Replacement) {
+  return change(after(std::move(S)), std::move(Replacement));
+}
+
+/// Removes the source selected by \p S.
+inline ASTEdit remove(RangeSelector S) {
+  return change(std::move(S), text(""));
+}
+
 /// The following three functions are a low-level part of the RewriteRule
 /// API. We expose them for use in implementing the fixtures that interpret
 /// RewriteRule, like Transformer and TransfomerTidy, or for more advanced


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