1 //===--- Source.cpp - Source expression tracking ----------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "Source.h" 10 #include "clang/AST/Expr.h" 11 12 using namespace clang; 13 using namespace clang::interp; 14 15 SourceLocation SourceInfo::getLoc() const { 16 if (const Expr *E = asExpr()) 17 return E->getExprLoc(); 18 if (const Stmt *S = asStmt()) 19 return S->getBeginLoc(); 20 if (const Decl *D = asDecl()) 21 return D->getBeginLoc(); 22 return SourceLocation(); 23 } 24 25 const Expr *SourceInfo::asExpr() const { 26 if (auto *S = Source.dyn_cast<const Stmt *>()) 27 return dyn_cast<Expr>(S); 28 return nullptr; 29 } 30 31 const Expr *SourceMapper::getExpr(const Function *F, CodePtr PC) const { 32 if (const Expr *E = getSource(F, PC).asExpr()) 33 return E; 34 llvm::report_fatal_error("missing source expression"); 35 } 36 37 SourceLocation SourceMapper::getLocation(const Function *F, CodePtr PC) const { 38 return getSource(F, PC).getLoc(); 39 } 40