Daniel Jasper | fe7beeb | 2012-07-16 09:18:17 +0000 | [diff] [blame^] | 1 | //===- unittest/ASTMatchers/RefactoringCallbacksTest.cpp ------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "clang/ASTMatchers/ASTMatchers.h" |
| 11 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
| 12 | #include "clang/ASTMatchers/RefactoringCallbacks.h" |
| 13 | #include "../Tooling/RewriterTestContext.h" |
| 14 | #include "gtest/gtest.h" |
| 15 | |
| 16 | namespace clang { |
| 17 | namespace ast_matchers { |
| 18 | |
| 19 | template <typename T> |
| 20 | void expectRewritten(const std::string &Code, |
| 21 | const std::string &Expected, |
| 22 | const T &AMatcher, |
| 23 | RefactoringCallback &Callback) { |
| 24 | MatchFinder Finder; |
| 25 | Finder.addMatcher(AMatcher, &Callback); |
| 26 | OwningPtr<tooling::FrontendActionFactory> Factory( |
| 27 | tooling::newFrontendActionFactory(&Finder)); |
| 28 | ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), Code)) |
| 29 | << "Parsing error in \"" << Code << "\""; |
| 30 | RewriterTestContext Context; |
| 31 | FileID ID = Context.createInMemoryFile("input.cc", Code); |
| 32 | EXPECT_TRUE(tooling::applyAllReplacements(Callback.getReplacements(), |
| 33 | Context.Rewrite)); |
| 34 | EXPECT_EQ(Expected, Context.getRewrittenText(ID)); |
| 35 | } |
| 36 | |
| 37 | TEST(RefactoringCallbacksTest, ReplacesStmtsWithString) { |
| 38 | std::string Code = "void f() { int i = 1; }"; |
| 39 | std::string Expected = "void f() { ; }"; |
| 40 | ReplaceStmtWithText Callback("id", ";"); |
| 41 | expectRewritten(Code, Expected, id("id", declarationStatement()), Callback); |
| 42 | } |
| 43 | |
| 44 | TEST(RefactoringCallbacksTest, ReplacesStmtsInCalledMacros) { |
| 45 | std::string Code = "#define A void f() { int i = 1; }\nA"; |
| 46 | std::string Expected = "#define A void f() { ; }\nA"; |
| 47 | ReplaceStmtWithText Callback("id", ";"); |
| 48 | expectRewritten(Code, Expected, id("id", declarationStatement()), Callback); |
| 49 | } |
| 50 | |
| 51 | TEST(RefactoringCallbacksTest, IgnoresStmtsInUncalledMacros) { |
| 52 | std::string Code = "#define A void f() { int i = 1; }"; |
| 53 | std::string Expected = "#define A void f() { int i = 1; }"; |
| 54 | ReplaceStmtWithText Callback("id", ";"); |
| 55 | expectRewritten(Code, Expected, id("id", declarationStatement()), Callback); |
| 56 | } |
| 57 | |
| 58 | TEST(RefactoringCallbacksTest, ReplacesInteger) { |
| 59 | std::string Code = "void f() { int i = 1; }"; |
| 60 | std::string Expected = "void f() { int i = 2; }"; |
| 61 | ReplaceStmtWithText Callback("id", "2"); |
| 62 | expectRewritten(Code, Expected, id("id", expression(integerLiteral())), |
| 63 | Callback); |
| 64 | } |
| 65 | |
| 66 | TEST(RefactoringCallbacksTest, ReplacesStmtWithStmt) { |
| 67 | std::string Code = "void f() { int i = false ? 1 : i * 2; }"; |
| 68 | std::string Expected = "void f() { int i = i * 2; }"; |
| 69 | ReplaceStmtWithStmt Callback("always-false", "should-be"); |
| 70 | expectRewritten(Code, Expected, |
| 71 | id("always-false", conditionalOperator( |
| 72 | hasCondition(boolLiteral(equals(false))), |
| 73 | hasFalseExpression(id("should-be", expression())))), |
| 74 | Callback); |
| 75 | } |
| 76 | |
| 77 | TEST(RefactoringCallbacksTest, ReplacesIfStmt) { |
| 78 | std::string Code = "bool a; void f() { if (a) f(); else a = true; }"; |
| 79 | std::string Expected = "bool a; void f() { f(); }"; |
| 80 | ReplaceIfStmtWithItsBody Callback("id", true); |
| 81 | expectRewritten(Code, Expected, |
| 82 | id("id", ifStmt( |
| 83 | hasCondition(implicitCast(hasSourceExpression( |
| 84 | declarationReference(to(variable(hasName("a"))))))))), |
| 85 | Callback); |
| 86 | } |
| 87 | |
| 88 | TEST(RefactoringCallbacksTest, RemovesEntireIfOnEmptyElse) { |
| 89 | std::string Code = "void f() { if (false) int i = 0; }"; |
| 90 | std::string Expected = "void f() { }"; |
| 91 | ReplaceIfStmtWithItsBody Callback("id", false); |
| 92 | expectRewritten(Code, Expected, |
| 93 | id("id", ifStmt(hasCondition(boolLiteral(equals(false))))), |
| 94 | Callback); |
| 95 | } |
| 96 | |
| 97 | } // end namespace ast_matchers |
| 98 | } // end namespace clang |