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//===------ SemaAVR.cpp ---------- AVR target-specific routines -----------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file implements semantic analysis functions specific to AVR.
//
//===----------------------------------------------------------------------===//
#include "clang/Sema/SemaAVR.h"
#include "clang/AST/DeclBase.h"
#include "clang/Basic/DiagnosticSema.h"
#include "clang/Sema/Attr.h"
#include "clang/Sema/ParsedAttr.h"
#include "clang/Sema/Sema.h"
namespace clang {
SemaAVR::SemaAVR(Sema &S) : SemaBase(S) {}
void SemaAVR::handleInterruptAttr(Decl *D, const ParsedAttr &AL) {
if (!isFuncOrMethodForAttrSubject(D)) {
Diag(D->getLocation(), diag::warn_attribute_wrong_decl_type)
<< AL << AL.isRegularKeywordAttribute() << ExpectedFunction;
return;
}
if (!AL.checkExactlyNumArgs(SemaRef, 0))
return;
// AVR interrupt handlers must have no parameter and be void type.
if (hasFunctionProto(D) && getFunctionOrMethodNumParams(D) != 0) {
Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
<< /*AVR*/ 3 << /*interrupt*/ 0 << 0;
return;
}
if (!getFunctionOrMethodResultType(D)->isVoidType()) {
Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
<< /*AVR*/ 3 << /*interrupt*/ 0 << 1;
return;
}
handleSimpleAttribute<AVRInterruptAttr>(*this, D, AL);
}
void SemaAVR::handleSignalAttr(Decl *D, const ParsedAttr &AL) {
if (!isFuncOrMethodForAttrSubject(D)) {
Diag(D->getLocation(), diag::warn_attribute_wrong_decl_type)
<< AL << AL.isRegularKeywordAttribute() << ExpectedFunction;
return;
}
if (!AL.checkExactlyNumArgs(SemaRef, 0))
return;
// AVR signal handlers must have no parameter and be void type.
if (hasFunctionProto(D) && getFunctionOrMethodNumParams(D) != 0) {
Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
<< /*AVR*/ 3 << /*signal*/ 1 << 0;
return;
}
if (!getFunctionOrMethodResultType(D)->isVoidType()) {
Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
<< /*AVR*/ 3 << /*signal*/ 1 << 1;
return;
}
handleSimpleAttribute<AVRSignalAttr>(*this, D, AL);
}
} // namespace clang
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