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Diffstat (limited to 'unittests/Tooling/SourceCodeTest.cpp')
-rw-r--r-- | unittests/Tooling/SourceCodeTest.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/unittests/Tooling/SourceCodeTest.cpp b/unittests/Tooling/SourceCodeTest.cpp new file mode 100644 index 0000000000..258947a1a7 --- /dev/null +++ b/unittests/Tooling/SourceCodeTest.cpp @@ -0,0 +1,97 @@ +//===- unittest/Tooling/SourceCodeTest.cpp --------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "TestVisitor.h" +#include "clang/Basic/Diagnostic.h" +#include "clang/Tooling/Refactoring/SourceCode.h" + +using namespace clang; + +using tooling::getText; +using tooling::getExtendedText; + +namespace { + +struct CallsVisitor : TestVisitor<CallsVisitor> { + bool VisitCallExpr(CallExpr *Expr) { + OnCall(Expr, Context); + return true; + } + + std::function<void(CallExpr *, ASTContext *Context)> OnCall; +}; + +TEST(SourceCodeTest, getText) { + CallsVisitor Visitor; + + Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) { + EXPECT_EQ("foo(x, y)", getText(*CE, *Context)); + }; + Visitor.runOver("void foo(int x, int y) { foo(x, y); }"); + + Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) { + EXPECT_EQ("APPLY(foo, x, y)", getText(*CE, *Context)); + }; + Visitor.runOver("#define APPLY(f, x, y) f(x, y)\n" + "void foo(int x, int y) { APPLY(foo, x, y); }"); +} + +TEST(SourceCodeTest, getTextWithMacro) { + CallsVisitor Visitor; + + Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) { + EXPECT_EQ("F OO", getText(*CE, *Context)); + Expr *P0 = CE->getArg(0); + Expr *P1 = CE->getArg(1); + EXPECT_EQ("", getText(*P0, *Context)); + EXPECT_EQ("", getText(*P1, *Context)); + }; + Visitor.runOver("#define F foo(\n" + "#define OO x, y)\n" + "void foo(int x, int y) { F OO ; }"); + + Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) { + EXPECT_EQ("", getText(*CE, *Context)); + Expr *P0 = CE->getArg(0); + Expr *P1 = CE->getArg(1); + EXPECT_EQ("x", getText(*P0, *Context)); + EXPECT_EQ("y", getText(*P1, *Context)); + }; + Visitor.runOver("#define FOO(x, y) (void)x; (void)y; foo(x, y);\n" + "void foo(int x, int y) { FOO(x,y) }"); +} + +TEST(SourceCodeTest, getExtendedText) { + CallsVisitor Visitor; + + Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) { + EXPECT_EQ("foo(x, y);", + getExtendedText(*CE, tok::TokenKind::semi, *Context)); + + Expr *P0 = CE->getArg(0); + Expr *P1 = CE->getArg(1); + EXPECT_EQ("x", getExtendedText(*P0, tok::TokenKind::semi, *Context)); + EXPECT_EQ("x,", getExtendedText(*P0, tok::TokenKind::comma, *Context)); + EXPECT_EQ("y", getExtendedText(*P1, tok::TokenKind::semi, *Context)); + }; + Visitor.runOver("void foo(int x, int y) { foo(x, y); }"); + Visitor.runOver("void foo(int x, int y) { if (true) foo(x, y); }"); + Visitor.runOver("int foo(int x, int y) { if (true) return 3 + foo(x, y); }"); + Visitor.runOver("void foo(int x, int y) { for (foo(x, y);;) ++x; }"); + Visitor.runOver( + "bool foo(int x, int y) { for (;foo(x, y);) x = 1; return true; }"); + + Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) { + EXPECT_EQ("foo()", getExtendedText(*CE, tok::TokenKind::semi, *Context)); + }; + Visitor.runOver("bool foo() { if (foo()) return true; return false; }"); + Visitor.runOver("void foo() { int x; for (;; foo()) ++x; }"); + Visitor.runOver("int foo() { return foo() + 3; }"); +} + +} // end anonymous namespace |