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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
232 lines
8.3 KiB
C++
232 lines
8.3 KiB
C++
//===- unittest/Tooling/FixitTest.cpp ------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "TestVisitor.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Tooling/FixIt.h"
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using namespace clang;
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using tooling::fixit::getText;
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using tooling::fixit::createRemoval;
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using tooling::fixit::createReplacement;
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namespace {
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struct CallsVisitor : TestVisitor<CallsVisitor> {
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bool VisitCallExpr(CallExpr *Expr) {
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OnCall(Expr, Context);
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return true;
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}
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std::function<void(CallExpr *, ASTContext *Context)> OnCall;
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};
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std::string LocationToString(SourceLocation Loc, ASTContext *Context) {
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return Loc.printToString(Context->getSourceManager());
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}
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TEST(FixItTest, getText) {
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CallsVisitor Visitor;
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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EXPECT_EQ("foo(x, y)", getText(*CE, *Context));
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EXPECT_EQ("foo(x, y)", getText(CE->getSourceRange(), *Context));
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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EXPECT_EQ("x", getText(*P0, *Context));
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EXPECT_EQ("y", getText(*P1, *Context));
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};
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Visitor.runOver("void foo(int x, int y) { foo(x, y); }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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EXPECT_EQ("APPLY(foo, x, y)", getText(*CE, *Context));
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};
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Visitor.runOver("#define APPLY(f, x, y) f(x, y)\n"
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"void foo(int x, int y) { APPLY(foo, x, y); }");
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}
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TEST(FixItTest, getTextWithMacro) {
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CallsVisitor Visitor;
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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EXPECT_EQ("F OO", getText(*CE, *Context));
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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EXPECT_EQ("", getText(*P0, *Context));
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EXPECT_EQ("", getText(*P1, *Context));
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};
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Visitor.runOver("#define F foo(\n"
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"#define OO x, y)\n"
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"void foo(int x, int y) { F OO ; }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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EXPECT_EQ("", getText(*CE, *Context));
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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EXPECT_EQ("x", getText(*P0, *Context));
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EXPECT_EQ("y", getText(*P1, *Context));
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};
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Visitor.runOver("#define FOO(x, y) (void)x; (void)y; foo(x, y);\n"
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"void foo(int x, int y) { FOO(x,y) }");
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}
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TEST(FixItTest, createRemoval) {
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CallsVisitor Visitor;
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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FixItHint Hint = createRemoval(*CE);
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EXPECT_EQ("foo(x, y)", getText(Hint.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint.CodeToInsert.empty());
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Expr *P0 = CE->getArg(0);
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FixItHint Hint0 = createRemoval(*P0);
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EXPECT_EQ("x", getText(Hint0.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint0.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint0.CodeToInsert.empty());
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Expr *P1 = CE->getArg(1);
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FixItHint Hint1 = createRemoval(*P1);
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EXPECT_EQ("y", getText(Hint1.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint1.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint1.CodeToInsert.empty());
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};
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Visitor.runOver("void foo(int x, int y) { foo(x, y); }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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Expr *P0 = CE->getArg(0);
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FixItHint Hint0 = createRemoval(*P0);
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EXPECT_EQ("x + y", getText(Hint0.RemoveRange.getAsRange(), *Context));
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Expr *P1 = CE->getArg(1);
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FixItHint Hint1 = createRemoval(*P1);
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EXPECT_EQ("y + x", getText(Hint1.RemoveRange.getAsRange(), *Context));
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};
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Visitor.runOver("void foo(int x, int y) { foo(x + y, y + x); }");
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}
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TEST(FixItTest, createRemovalWithMacro) {
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CallsVisitor Visitor;
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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FixItHint Hint = createRemoval(*CE);
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EXPECT_EQ("FOO", getText(Hint.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint.CodeToInsert.empty());
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Expr *P0 = CE->getArg(0);
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FixItHint Hint0 = createRemoval(*P0);
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:17>",
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LocationToString(Hint0.RemoveRange.getBegin(), Context));
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:17>",
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LocationToString(Hint0.RemoveRange.getEnd(), Context));
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EXPECT_TRUE(Hint0.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint0.CodeToInsert.empty());
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Expr *P1 = CE->getArg(1);
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FixItHint Hint1 = createRemoval(*P1);
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:20>",
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LocationToString(Hint1.RemoveRange.getBegin(), Context));
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:20>",
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LocationToString(Hint1.RemoveRange.getEnd(), Context));
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EXPECT_TRUE(Hint1.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint1.CodeToInsert.empty());
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};
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Visitor.runOver("#define FOO foo(1, 1)\n"
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"void foo(int x, int y) { FOO; }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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FixItHint Hint = createRemoval(*CE);
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:37>",
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LocationToString(Hint.RemoveRange.getBegin(), Context));
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:45>",
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LocationToString(Hint.RemoveRange.getEnd(), Context));
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EXPECT_TRUE(Hint.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint.CodeToInsert.empty());
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};
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Visitor.runOver("#define FOO(x, y) (void)x; (void)y; foo(x, y);\n"
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"void foo(int x, int y) { FOO(x,y) }");
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}
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TEST(FixItTest, createReplacement) {
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CallsVisitor Visitor;
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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FixItHint Hint0 = createReplacement(*P0, *P1, *Context);
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FixItHint Hint1 = createReplacement(*P1, *P0, *Context);
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// Validate Hint0 fields.
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EXPECT_EQ("x", getText(Hint0.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint0.InsertFromRange.isInvalid());
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EXPECT_EQ(Hint0.CodeToInsert, "y");
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// Validate Hint1 fields.
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EXPECT_EQ("y", getText(Hint1.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint1.InsertFromRange.isInvalid());
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EXPECT_EQ(Hint1.CodeToInsert, "x");
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};
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Visitor.runOver("void foo(int x, int y) { foo(x, y); }");
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Visitor.runOver("#define APPLY(f, x, y) f(x, y)\n"
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"void foo(int x, int y) { APPLY(foo, x, y); }");
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Visitor.runOver("#define APPLY(f, P) f(P)\n"
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"#define PAIR(x, y) x, y\n"
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"void foo(int x, int y) { APPLY(foo, PAIR(x, y)); }\n");
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}
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TEST(FixItTest, createReplacementWithMacro) {
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CallsVisitor Visitor;
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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FixItHint Hint = createReplacement(*P0, *P1, *Context);
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:17>",
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LocationToString(Hint.RemoveRange.getBegin(), Context));
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:1:17>",
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LocationToString(Hint.RemoveRange.getEnd(), Context));
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EXPECT_TRUE(Hint.InsertFromRange.isInvalid());
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EXPECT_TRUE(Hint.CodeToInsert.empty());
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};
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Visitor.runOver("#define FOO foo(1, 1)\n"
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"void foo(int x, int y) { FOO; }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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FixItHint Hint = createReplacement(*P0, *P1, *Context);
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:2:30>",
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LocationToString(Hint.RemoveRange.getBegin(), Context));
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EXPECT_EQ("input.cc:2:26 <Spelling=input.cc:2:30>",
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LocationToString(Hint.RemoveRange.getEnd(), Context));
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EXPECT_TRUE(Hint.InsertFromRange.isInvalid());
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EXPECT_EQ("y", Hint.CodeToInsert);
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};
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Visitor.runOver("#define FOO(x, y) (void)x; (void)y; foo(x, y);\n"
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"void foo(int x, int y) { FOO(x,y) }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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Expr *P0 = CE->getArg(0);
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Expr *P1 = CE->getArg(1);
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FixItHint Hint = createReplacement(*P0, *P1, *Context);
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EXPECT_EQ("x + y", getText(Hint.RemoveRange.getAsRange(), *Context));
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EXPECT_TRUE(Hint.InsertFromRange.isInvalid());
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EXPECT_EQ("y + x", Hint.CodeToInsert);
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};
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Visitor.runOver("void foo(int x, int y) { foo(x + y, y + x); }");
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}
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} // end anonymous namespace
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