74 lines · cpp
1//===------ SemaAVR.cpp ---------- AVR target-specific routines -----------===//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-exception6//7//===----------------------------------------------------------------------===//8//9// This file implements semantic analysis functions specific to AVR.10//11//===----------------------------------------------------------------------===//12 13#include "clang/Sema/SemaAVR.h"14#include "clang/AST/DeclBase.h"15#include "clang/Basic/DiagnosticSema.h"16#include "clang/Sema/Attr.h"17#include "clang/Sema/ParsedAttr.h"18#include "clang/Sema/Sema.h"19 20namespace clang {21SemaAVR::SemaAVR(Sema &S) : SemaBase(S) {}22 23void SemaAVR::handleInterruptAttr(Decl *D, const ParsedAttr &AL) {24 if (!isFuncOrMethodForAttrSubject(D)) {25 Diag(D->getLocation(), diag::warn_attribute_wrong_decl_type)26 << AL << AL.isRegularKeywordAttribute() << ExpectedFunction;27 return;28 }29 30 if (!AL.checkExactlyNumArgs(SemaRef, 0))31 return;32 33 // AVR interrupt handlers must have no parameter and be void type.34 if (hasFunctionProto(D) && getFunctionOrMethodNumParams(D) != 0) {35 Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)36 << /*AVR*/ 3 << /*interrupt*/ 0 << 0;37 return;38 }39 if (!getFunctionOrMethodResultType(D)->isVoidType()) {40 Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)41 << /*AVR*/ 3 << /*interrupt*/ 0 << 1;42 return;43 }44 45 handleSimpleAttribute<AVRInterruptAttr>(*this, D, AL);46}47 48void SemaAVR::handleSignalAttr(Decl *D, const ParsedAttr &AL) {49 if (!isFuncOrMethodForAttrSubject(D)) {50 Diag(D->getLocation(), diag::warn_attribute_wrong_decl_type)51 << AL << AL.isRegularKeywordAttribute() << ExpectedFunction;52 return;53 }54 55 if (!AL.checkExactlyNumArgs(SemaRef, 0))56 return;57 58 // AVR signal handlers must have no parameter and be void type.59 if (hasFunctionProto(D) && getFunctionOrMethodNumParams(D) != 0) {60 Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)61 << /*AVR*/ 3 << /*signal*/ 1 << 0;62 return;63 }64 if (!getFunctionOrMethodResultType(D)->isVoidType()) {65 Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)66 << /*AVR*/ 3 << /*signal*/ 1 << 1;67 return;68 }69 70 handleSimpleAttribute<AVRSignalAttr>(*this, D, AL);71}72 73} // namespace clang74