98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
//===- unittest/Tooling/SourceCodeTest.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/Refactoring/SourceCode.h"
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using namespace clang;
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using tooling::getText;
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using tooling::getExtendedText;
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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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TEST(SourceCodeTest, 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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};
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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(SourceCodeTest, 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(SourceCodeTest, getExtendedText) {
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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);",
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getExtendedText(*CE, tok::TokenKind::semi, *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", getExtendedText(*P0, tok::TokenKind::semi, *Context));
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EXPECT_EQ("x,", getExtendedText(*P0, tok::TokenKind::comma, *Context));
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EXPECT_EQ("y", getExtendedText(*P1, tok::TokenKind::semi, *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.runOver("void foo(int x, int y) { if (true) foo(x, y); }");
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Visitor.runOver("int foo(int x, int y) { if (true) return 3 + foo(x, y); }");
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Visitor.runOver("void foo(int x, int y) { for (foo(x, y);;) ++x; }");
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Visitor.runOver(
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"bool foo(int x, int y) { for (;foo(x, y);) x = 1; return true; }");
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Visitor.OnCall = [](CallExpr *CE, ASTContext *Context) {
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EXPECT_EQ("foo()", getExtendedText(*CE, tok::TokenKind::semi, *Context));
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};
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Visitor.runOver("bool foo() { if (foo()) return true; return false; }");
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Visitor.runOver("void foo() { int x; for (;; foo()) ++x; }");
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Visitor.runOver("int foo() { return foo() + 3; }");
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}
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} // end anonymous namespace
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