mirror of https://github.com/libAthena/athena.git
1086 lines
58 KiB
C++
1086 lines
58 KiB
C++
#include <stdio.h>
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/FrontendAction.h"
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#include "clang/Tooling/Tooling.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Sema/Sema.h"
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#include "clang/AST/RecordLayout.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/TypeLoc.h"
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#include "clang/Basic/Version.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/CommandLine.h"
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#ifndef INSTALL_PREFIX
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#define INSTALL_PREFIX /usr/local
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#endif
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#define XSTR(s) STR(s)
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#define STR(s) #s
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static llvm::cl::opt<bool> Help("h", llvm::cl::desc("Alias for -help"), llvm::cl::Hidden);
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static llvm::cl::OptionCategory ATDNAFormatCategory("atdna options");
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static llvm::cl::opt<std::string> OutputFilename("o",
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llvm::cl::desc("Specify output filename"),
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llvm::cl::value_desc("filename"),
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llvm::cl::Prefix);
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static llvm::cl::list<std::string> InputFilenames(llvm::cl::Positional,
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llvm::cl::desc("<Input files>"),
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llvm::cl::OneOrMore);
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static llvm::cl::list<std::string> IncludeSearchPaths("I",
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llvm::cl::desc("Header search path"),
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llvm::cl::Prefix);
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static unsigned AthenaError = 0;
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#define ATHENA_DNA_BASETYPE "struct Athena::io::DNA"
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class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
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{
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clang::ASTContext& context;
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llvm::raw_fd_ostream& fileOut;
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bool isDNARecord(const clang::CXXRecordDecl* record, std::string& baseDNA)
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{
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for (const clang::CXXBaseSpecifier& base : record->bases())
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{
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const clang::QualType qtp = base.getType().getCanonicalType();
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if (!qtp.getAsString().compare(0, sizeof(ATHENA_DNA_BASETYPE)-1, ATHENA_DNA_BASETYPE))
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return true;
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}
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for (const clang::CXXBaseSpecifier& base : record->bases())
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{
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clang::QualType qtp = base.getType().getCanonicalType();
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const clang::Type* tp = qtp.getTypePtrOrNull();
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if (tp)
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{
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const clang::CXXRecordDecl* rDecl = tp->getAsCXXRecordDecl();
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if (rDecl)
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{
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if (isDNARecord(rDecl, baseDNA))
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{
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bool hasRead = false;
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bool hasWrite = false;
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for (const clang::CXXMethodDecl* method : rDecl->methods())
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{
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std::string compName = method->getNameAsString();
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if (!compName.compare("read"))
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hasRead = true;
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else if (!compName.compare("write"))
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hasWrite = true;
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}
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if (hasRead && hasWrite)
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baseDNA = rDecl->getNameAsString();
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return true;
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}
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}
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}
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}
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return false;
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}
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std::string GetOpString(const clang::Type* theType, unsigned width,
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const std::string& fieldName, bool writerPass,
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bool& isDNATypeOut)
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{
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isDNATypeOut = false;
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if (writerPass)
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{
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if (theType->isBuiltinType())
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{
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const clang::BuiltinType* bType = (clang::BuiltinType*)theType;
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if (bType->isBooleanType())
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{
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return "__dna_writer.writeBool(" + fieldName + ");";
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}
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else if (bType->isUnsignedInteger())
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{
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if (width == 8)
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return "__dna_writer.writeUByte(" + fieldName + ");";
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else if (width == 16)
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return "__dna_writer.writeUint16(" + fieldName + ");";
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else if (width == 32)
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return "__dna_writer.writeUint32(" + fieldName + ");";
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else if (width == 64)
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return "__dna_writer.writeUint64(" + fieldName + ");";
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}
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else if (bType->isSignedInteger())
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{
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if (width == 8)
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return "__dna_writer.writeByte(" + fieldName + ");";
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else if (width == 16)
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return "__dna_writer.writeInt16(" + fieldName + ");";
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else if (width == 32)
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return "__dna_writer.writeInt32(" + fieldName + ");";
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else if (width == 64)
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return "__dna_writer.writeInt64(" + fieldName + ");";
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}
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else if (bType->isFloatingPoint())
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{
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if (width == 32)
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return "__dna_writer.writeFloat(" + fieldName + ");";
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else if (width == 64)
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return "__dna_writer.writeDouble(" + fieldName + ");";
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}
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}
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else if (theType->isRecordType())
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{
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const clang::CXXRecordDecl* rDecl = theType->getAsCXXRecordDecl();
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for (const clang::FieldDecl* field : rDecl->fields())
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{
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if (!field->getNameAsString().compare("clangVec"))
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{
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const clang::VectorType* vType = (clang::VectorType*)field->getType().getTypePtr();
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if (vType->isVectorType())
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{
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const clang::BuiltinType* eType = (clang::BuiltinType*)vType->getElementType().getTypePtr();
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if (!eType->isBuiltinType() || !eType->isFloatingPoint() ||
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context.getTypeInfo(eType).Width != 32)
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continue;
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if (vType->getNumElements() == 3)
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return "__dna_writer.writeVec3f(" + fieldName + ");";
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else if (vType->getNumElements() == 4)
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return "__dna_writer.writeVec4f(" + fieldName + ");";
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}
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}
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}
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std::string baseDNA;
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if (isDNARecord(rDecl, baseDNA))
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{
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isDNATypeOut = true;
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return "write(__dna_writer);";
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}
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}
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}
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else
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{
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if (theType->isBuiltinType())
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{
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const clang::BuiltinType* bType = (clang::BuiltinType*)theType;
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if (bType->isBooleanType())
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{
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return "__dna_reader.readBool()";
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}
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else if (bType->isUnsignedInteger())
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{
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if (width == 8)
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return "__dna_reader.readUByte()";
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else if (width == 16)
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return "__dna_reader.readUint16()";
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else if (width == 32)
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return "__dna_reader.readUint32()";
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else if (width == 64)
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return "__dna_reader.readUint64()";
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}
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else if (bType->isSignedInteger())
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{
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if (width == 8)
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return "__dna_reader.readByte()";
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else if (width == 16)
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return "__dna_reader.readInt16()";
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else if (width == 32)
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return "__dna_reader.readInt32()";
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else if (width == 64)
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return "__dna_reader.readInt64()";
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}
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else if (bType->isFloatingPoint())
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{
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if (width == 32)
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return "__dna_reader.readFloat()";
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else if (width == 64)
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return "__dna_reader.readDouble()";
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}
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}
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else if (theType->isRecordType())
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{
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const clang::CXXRecordDecl* rDecl = theType->getAsCXXRecordDecl();
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for (const clang::FieldDecl* field : rDecl->fields())
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{
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if (!field->getNameAsString().compare("clangVec"))
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{
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const clang::VectorType* vType = (clang::VectorType*)field->getType().getTypePtr();
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if (vType->isVectorType())
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{
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const clang::BuiltinType* eType = (clang::BuiltinType*)vType->getElementType().getTypePtr();
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if (!eType->isBuiltinType() || !eType->isFloatingPoint() ||
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context.getTypeInfo(eType).Width != 32)
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continue;
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if (vType->getNumElements() == 3)
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return "__dna_reader.readVec3f()";
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else if (vType->getNumElements() == 4)
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return "__dna_reader.readVec4f()";
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}
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}
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}
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std::string baseDNA;
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if (isDNARecord(rDecl, baseDNA))
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{
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isDNATypeOut = true;
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return "read(__dna_reader);";
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}
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}
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}
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return std::string();
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}
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public:
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explicit ATDNAEmitVisitor(clang::ASTContext& ctxin,
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llvm::raw_fd_ostream& fo)
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: context(ctxin), fileOut(fo) {}
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bool VisitCXXRecordDecl(clang::CXXRecordDecl* decl)
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{
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if (decl->isInvalidDecl() || !decl->hasDefinition())
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return true;
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if (!decl->getNumBases())
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return true;
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/* First ensure this inherits from struct Athena::io::DNA */
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std::string baseDNA;
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if (!isDNARecord(decl, baseDNA))
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return true;
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/* Make sure there aren't namespace conflicts or Delete meta type */
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for (const clang::FieldDecl* field : decl->fields())
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{
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if (!field->getNameAsString().compare("__dna_reader") ||
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!field->getNameAsString().compare("__dna_writer"))
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
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diag.AddString("Field may not be named '__dna_reader' or '__dna_writer'");
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diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
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return true;
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}
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clang::QualType qualType = field->getType().getCanonicalType();
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const clang::Type* regType = qualType.getTypePtrOrNull();
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if (regType)
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{
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const clang::CXXRecordDecl* rDecl = regType->getAsCXXRecordDecl();
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if (rDecl)
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{
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if (!rDecl->getNameAsString().compare("Delete"))
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{
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const clang::CXXRecordDecl* rParentDecl = llvm::dyn_cast_or_null<clang::CXXRecordDecl>(rDecl->getParent());
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if (rParentDecl)
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{
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std::string parentCheck = rParentDecl->getTypeForDecl()->getCanonicalTypeInternal().getAsString();
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if (!parentCheck.compare(0, sizeof(ATHENA_DNA_BASETYPE)-1, ATHENA_DNA_BASETYPE))
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return true;
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}
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}
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}
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}
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}
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/* Two passes - read then write */
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for (int p=0 ; p<2 ; ++p)
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{
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if (p)
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fileOut << "void " << decl->getQualifiedNameAsString() << "::write(Athena::io::IStreamWriter& __dna_writer) const\n{\n";
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else
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fileOut << "void " << decl->getQualifiedNameAsString() << "::read(Athena::io::IStreamReader& __dna_reader)\n{\n";
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int currentEndian = -1;
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if (baseDNA.size())
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{
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if (p)
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fileOut << " " << baseDNA << "::write(__dna_writer);\n";
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else
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fileOut << " " << baseDNA << "::read(__dna_reader);\n";
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}
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for (const clang::FieldDecl* field : decl->fields())
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{
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clang::QualType qualType = field->getType();
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clang::TypeInfo regTypeInfo = context.getTypeInfo(qualType);
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const clang::Type* regType = qualType.getTypePtrOrNull();
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if (regType->getTypeClass() == clang::Type::Elaborated)
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regType = regType->getUnqualifiedDesugaredType();
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/* Resolve constant array */
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size_t arraySize = 1;
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bool isArray = false;
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if (regType->getTypeClass() == clang::Type::ConstantArray)
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{
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isArray = true;
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const clang::ConstantArrayType* caType = (clang::ConstantArrayType*)regType;
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arraySize = caType->getSize().getZExtValue();
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qualType = caType->getElementType();
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regTypeInfo = context.getTypeInfo(qualType);
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regType = qualType.getTypePtrOrNull();
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if (regType->getTypeClass() == clang::Type::Elaborated)
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regType = regType->getUnqualifiedDesugaredType();
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}
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for (int e=0 ; e<arraySize ; ++e)
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{
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std::string fieldName;
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if (isArray)
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{
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char subscript[16];
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snprintf(subscript, 16, "[%d]", e);
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fieldName = field->getNameAsString() + subscript;
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}
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else
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fieldName = field->getNameAsString();
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if (regType->getTypeClass() == clang::Type::TemplateSpecialization)
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{
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const clang::TemplateSpecializationType* tsType = (const clang::TemplateSpecializationType*)regType;
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const clang::TemplateDecl* tsDecl = tsType->getTemplateName().getAsTemplateDecl();
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const clang::TemplateParameterList* classParms = tsDecl->getTemplateParameters();
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if (!tsDecl->getNameAsString().compare("Value"))
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{
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llvm::APSInt endian(64, -1);
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const clang::Expr* endianExpr = nullptr;
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if (classParms->size() >= 2)
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{
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const clang::NamedDecl* endianParm = classParms->getParam(1);
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if (endianParm->getKind() == clang::Decl::NonTypeTemplateParm)
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{
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const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)endianParm;
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const clang::Expr* defArg = nttParm->getDefaultArgument();
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endianExpr = defArg;
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if (!defArg->isIntegerConstantExpr(endian, context))
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{
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if (!p)
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(defArg->getLocStart(), AthenaError);
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diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
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diag.AddSourceRange(clang::CharSourceRange(defArg->getSourceRange(), true));
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}
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continue;
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}
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}
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}
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clang::QualType templateType;
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std::string ioOp;
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bool isDNAType = false;
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const clang::TemplateArgument* typeArg = nullptr;
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for (const clang::TemplateArgument& arg : *tsType)
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{
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if (arg.getKind() == clang::TemplateArgument::Type)
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{
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typeArg = &arg;
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templateType = arg.getAsType().getCanonicalType();
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const clang::Type* type = arg.getAsType().getCanonicalType().getTypePtr();
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ioOp = GetOpString(type, regTypeInfo.Width, fieldName, p, isDNAType);
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}
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else if (arg.getKind() == clang::TemplateArgument::Expression)
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{
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const clang::Expr* expr = arg.getAsExpr();
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endianExpr = expr;
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if (expr->isIntegerConstantExpr(endian, context))
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{
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if (!p)
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(expr->getLocStart(), AthenaError);
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diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
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diag.AddSourceRange(clang::CharSourceRange(expr->getSourceRange(), true));
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}
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continue;
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}
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}
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}
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int endianVal = endian.getSExtValue();
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if (endianVal != 0 && endianVal != 1)
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{
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if (!p)
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{
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if (endianExpr)
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(endianExpr->getLocStart(), AthenaError);
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diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
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diag.AddSourceRange(clang::CharSourceRange(endianExpr->getSourceRange(), true));
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}
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else
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
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diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
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diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
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}
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}
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continue;
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}
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if (ioOp.empty())
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{
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if (!p)
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
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diag.AddString("Unable to use type '" + tsDecl->getNameAsString() + "' with Athena");
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diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
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}
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continue;
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}
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if (currentEndian != endianVal)
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{
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if (endianVal == 0)
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fileOut << (p ? " __dna_writer.setEndian(Athena::LittleEndian);\n" : " __dna_reader.setEndian(Athena::LittleEndian);\n");
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else if (endianVal == 1)
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fileOut << (p ? " __dna_writer.setEndian(Athena::BigEndian);\n" : " __dna_reader.setEndian(Athena::BigEndian);\n");
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currentEndian = endianVal;
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}
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fileOut << " /* " << fieldName << " */\n";
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if (!p)
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fileOut << " " << fieldName << " = " << ioOp << ";\n";
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else
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fileOut << " " << ioOp << "\n";
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}
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else if (!tsDecl->getNameAsString().compare("Vector"))
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{
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llvm::APSInt endian(64, -1);
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const clang::Expr* endianExpr = nullptr;
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if (classParms->size() >= 3)
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{
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const clang::NamedDecl* endianParm = classParms->getParam(2);
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if (endianParm->getKind() == clang::Decl::NonTypeTemplateParm)
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{
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const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)endianParm;
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const clang::Expr* defArg = nttParm->getDefaultArgument();
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endianExpr = defArg;
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if (!defArg->isIntegerConstantExpr(endian, context))
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{
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if (!p)
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{
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clang::DiagnosticBuilder diag = context.getDiagnostics().Report(defArg->getLocStart(), AthenaError);
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diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
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diag.AddSourceRange(clang::CharSourceRange(defArg->getSourceRange(), true));
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}
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continue;
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}
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}
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}
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clang::QualType templateType;
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std::string ioOp;
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bool isDNAType = false;
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std::string sizeExpr;
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const clang::TemplateArgument* typeArg = nullptr;
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const clang::TemplateArgument* sizeArg = nullptr;
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size_t idx = 0;
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bool bad = false;
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for (const clang::TemplateArgument& arg : *tsType)
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|
{
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if (arg.getKind() == clang::TemplateArgument::Type)
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{
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typeArg = &arg;
|
|
templateType = arg.getAsType().getCanonicalType();
|
|
clang::TypeInfo typeInfo = context.getTypeInfo(templateType);
|
|
static const std::string elemStr = "elem";
|
|
ioOp = GetOpString(templateType.getTypePtr(), typeInfo.Width, elemStr, p, isDNAType);
|
|
}
|
|
else if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::Expr* expr = arg.getAsExpr()->IgnoreImpCasts();
|
|
if (idx == 1)
|
|
{
|
|
sizeArg = &arg;
|
|
const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)expr;
|
|
if (uExpr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
|
|
uExpr->getKind() == clang::UETT_SizeOf)
|
|
{
|
|
const clang::Expr* argExpr = uExpr->getArgumentExpr();
|
|
while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
|
|
argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
|
|
llvm::raw_string_ostream strStream(sizeExpr);
|
|
argExpr->printPretty(strStream, nullptr, context.getPrintingPolicy());
|
|
}
|
|
}
|
|
else if (idx == 2)
|
|
{
|
|
endianExpr = expr;
|
|
if (!expr->isIntegerConstantExpr(endian, context))
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(expr->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(expr->getSourceRange(), true));
|
|
}
|
|
bad = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
++idx;
|
|
}
|
|
if (bad)
|
|
continue;
|
|
|
|
int endianVal = endian.getSExtValue();
|
|
if (endianVal != 0 && endianVal != 1)
|
|
{
|
|
if (!p)
|
|
{
|
|
if (endianExpr)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(endianExpr->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(endianExpr->getSourceRange(), true));
|
|
}
|
|
else
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (ioOp.empty())
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
|
|
diag.AddString("Unable to use type '" + templateType.getAsString() + "' with Athena");
|
|
diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (sizeExpr.empty())
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
|
|
diag.AddString("Unable to use count variable with Athena");
|
|
diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (currentEndian != endianVal)
|
|
{
|
|
if (endianVal == 0)
|
|
fileOut << (p ? " __dna_writer.setEndian(Athena::LittleEndian);\n" : " __dna_reader.setEndian(Athena::LittleEndian);\n");
|
|
else if (endianVal == 1)
|
|
fileOut << (p ? " __dna_writer.setEndian(Athena::BigEndian);\n" : " __dna_reader.setEndian(Athena::BigEndian);\n");
|
|
currentEndian = endianVal;
|
|
}
|
|
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (!p)
|
|
{
|
|
fileOut << " " << fieldName << ".clear();\n";
|
|
fileOut << " " << fieldName << ".reserve(" << sizeExpr << ");\n";
|
|
if (isDNAType)
|
|
fileOut << " for (size_t i=0 ; i<(" << sizeExpr << ") ; ++i)\n"
|
|
" {\n"
|
|
" " << fieldName << ".emplace_back();\n"
|
|
" " << fieldName << ".back()." << ioOp << "\n"
|
|
" }\n";
|
|
else
|
|
fileOut << " for (size_t i=0 ; i<(" << sizeExpr << ") ; ++i)\n"
|
|
" " << fieldName << ".push_back(" << ioOp << ");\n";
|
|
}
|
|
else
|
|
{
|
|
fileOut << " for (auto elem : " << fieldName << ")\n";
|
|
if (isDNAType)
|
|
fileOut << " elem." << ioOp << "\n";
|
|
else
|
|
fileOut << " " << ioOp << "\n";
|
|
}
|
|
|
|
}
|
|
else if (!tsDecl->getNameAsString().compare("Buffer"))
|
|
{
|
|
const clang::Expr* sizeExpr = nullptr;
|
|
std::string sizeExprStr;
|
|
for (const clang::TemplateArgument& arg : *tsType)
|
|
{
|
|
if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)arg.getAsExpr()->IgnoreImpCasts();
|
|
if (uExpr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
|
|
uExpr->getKind() == clang::UETT_SizeOf)
|
|
{
|
|
const clang::Expr* argExpr = uExpr->getArgumentExpr();
|
|
while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
|
|
argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
|
|
sizeExpr = argExpr;
|
|
llvm::raw_string_ostream strStream(sizeExprStr);
|
|
argExpr->printPretty(strStream, nullptr, context.getPrintingPolicy());
|
|
}
|
|
}
|
|
}
|
|
if (sizeExprStr.empty())
|
|
{
|
|
if (!p)
|
|
{
|
|
if (sizeExpr)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(sizeExpr->getLocStart(), AthenaError);
|
|
diag.AddString("Unable to use size variable with Athena");
|
|
diag.AddSourceRange(clang::CharSourceRange(sizeExpr->getSourceRange(), true));
|
|
}
|
|
else
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
|
|
diag.AddString("Unable to use size variable with Athena");
|
|
diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (!p)
|
|
{
|
|
fileOut << " " << fieldName << ".reset(new atUint8[" << sizeExprStr << "]);\n";
|
|
fileOut << " __dna_reader.readUBytesToBuf(" << fieldName << ".get(), " << sizeExprStr << ");\n";
|
|
}
|
|
else
|
|
{
|
|
fileOut << " __dna_writer.writeUBytes(" << fieldName << ".get(), " << sizeExprStr << ");\n";
|
|
}
|
|
}
|
|
else if (!tsDecl->getNameAsString().compare("String"))
|
|
{
|
|
const clang::Expr* sizeExpr = nullptr;
|
|
std::string sizeExprStr;
|
|
for (const clang::TemplateArgument& arg : *tsType)
|
|
{
|
|
if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::Expr* expr = arg.getAsExpr()->IgnoreImpCasts();
|
|
const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)expr;
|
|
llvm::APSInt sizeLiteral;
|
|
if (expr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
|
|
uExpr->getKind() == clang::UETT_SizeOf)
|
|
{
|
|
const clang::Expr* argExpr = uExpr->getArgumentExpr();
|
|
while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
|
|
argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
|
|
sizeExpr = argExpr;
|
|
llvm::raw_string_ostream strStream(sizeExprStr);
|
|
argExpr->printPretty(strStream, nullptr, context.getPrintingPolicy());
|
|
}
|
|
else if (expr->isIntegerConstantExpr(sizeLiteral, context))
|
|
{
|
|
sizeExprStr = sizeLiteral.toString(10);
|
|
}
|
|
}
|
|
}
|
|
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (!p)
|
|
fileOut << " " << fieldName << " = __dna_reader.readString(" << sizeExprStr << ");\n";
|
|
else
|
|
{
|
|
fileOut << " __dna_writer.writeString(" << fieldName;
|
|
if (sizeExprStr.size())
|
|
fileOut << ", " << sizeExprStr;
|
|
fileOut << ");\n";
|
|
}
|
|
}
|
|
else if (!tsDecl->getNameAsString().compare("WString"))
|
|
{
|
|
llvm::APSInt endian(64, -1);
|
|
const clang::Expr* endianExpr = nullptr;
|
|
if (classParms->size() >= 2)
|
|
{
|
|
const clang::NamedDecl* endianParm = classParms->getParam(1);
|
|
if (endianParm->getKind() == clang::Decl::NonTypeTemplateParm)
|
|
{
|
|
const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)endianParm;
|
|
const clang::Expr* defArg = nttParm->getDefaultArgument();
|
|
endianExpr = defArg;
|
|
if (!defArg->isIntegerConstantExpr(endian, context))
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(defArg->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(defArg->getSourceRange(), true));
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
const clang::Expr* sizeExpr = nullptr;
|
|
std::string sizeExprStr;
|
|
size_t idx = 0;
|
|
bool bad = false;
|
|
for (const clang::TemplateArgument& arg : *tsType)
|
|
{
|
|
if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::Expr* expr = arg.getAsExpr()->IgnoreImpCasts();
|
|
if (idx == 0)
|
|
{
|
|
llvm::APSInt sizeLiteral;
|
|
const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)expr;
|
|
if (expr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
|
|
uExpr->getKind() == clang::UETT_SizeOf)
|
|
{
|
|
const clang::Expr* argExpr = uExpr->getArgumentExpr();
|
|
while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
|
|
argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
|
|
sizeExpr = argExpr;
|
|
llvm::raw_string_ostream strStream(sizeExprStr);
|
|
argExpr->printPretty(strStream, nullptr, context.getPrintingPolicy());
|
|
}
|
|
else if (expr->isIntegerConstantExpr(sizeLiteral, context))
|
|
{
|
|
sizeExprStr = sizeLiteral.toString(10);
|
|
}
|
|
}
|
|
else if (idx == 1)
|
|
{
|
|
endianExpr = expr;
|
|
if (!expr->isIntegerConstantExpr(endian, context))
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(expr->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(expr->getSourceRange(), true));
|
|
}
|
|
bad = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
++idx;
|
|
}
|
|
if (bad)
|
|
continue;
|
|
|
|
int endianVal = endian.getSExtValue();
|
|
if (endianVal != 0 && endianVal != 1)
|
|
{
|
|
if (!p)
|
|
{
|
|
if (endianExpr)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(endianExpr->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(endianExpr->getSourceRange(), true));
|
|
}
|
|
else
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
|
|
diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
|
|
diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (currentEndian != endianVal)
|
|
{
|
|
if (endianVal == 0)
|
|
fileOut << (p ? " __dna_writer.setEndian(Athena::LittleEndian);\n" : " __dna_reader.setEndian(Athena::LittleEndian);\n");
|
|
else if (endianVal == 1)
|
|
fileOut << (p ? " __dna_writer.setEndian(Athena::BigEndian);\n" : " __dna_reader.setEndian(Athena::BigEndian);\n");
|
|
currentEndian = endianVal;
|
|
}
|
|
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (!p)
|
|
fileOut << " " << fieldName << " = __dna_reader.readWString(" << sizeExprStr << ");\n";
|
|
else
|
|
{
|
|
fileOut << " __dna_writer.writeWString(" << fieldName;
|
|
if (sizeExprStr.size())
|
|
fileOut << ", " << sizeExprStr;
|
|
fileOut << ");\n";
|
|
}
|
|
}
|
|
else if (!tsDecl->getNameAsString().compare("UTF8"))
|
|
{
|
|
const clang::Expr* sizeExpr = nullptr;
|
|
std::string sizeExprStr;
|
|
for (const clang::TemplateArgument& arg : *tsType)
|
|
{
|
|
if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::Expr* expr = arg.getAsExpr()->IgnoreImpCasts();
|
|
const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)expr;
|
|
llvm::APSInt sizeLiteral;
|
|
if (expr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
|
|
uExpr->getKind() == clang::UETT_SizeOf)
|
|
{
|
|
const clang::Expr* argExpr = uExpr->getArgumentExpr();
|
|
while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
|
|
argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
|
|
sizeExpr = argExpr;
|
|
llvm::raw_string_ostream strStream(sizeExprStr);
|
|
argExpr->printPretty(strStream, nullptr, context.getPrintingPolicy());
|
|
}
|
|
else if (expr->isIntegerConstantExpr(sizeLiteral, context))
|
|
{
|
|
sizeExprStr = sizeLiteral.toString(10);
|
|
}
|
|
}
|
|
}
|
|
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (!p)
|
|
fileOut << " " << fieldName << " = __dna_reader.readUnicode(" << sizeExprStr << ");\n";
|
|
else
|
|
{
|
|
fileOut << " __dna_writer.writeUnicode(" << fieldName;
|
|
if (sizeExprStr.size())
|
|
fileOut << ", " << sizeExprStr;
|
|
fileOut << ");\n";
|
|
}
|
|
}
|
|
else if (!tsDecl->getNameAsString().compare("Seek"))
|
|
{
|
|
size_t idx = 0;
|
|
const clang::Expr* offsetExpr = nullptr;
|
|
std::string offsetExprStr;
|
|
llvm::APSInt direction(64, 0);
|
|
const clang::Expr* directionExpr = nullptr;
|
|
bool bad = false;
|
|
for (const clang::TemplateArgument& arg : *tsType)
|
|
{
|
|
if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::Expr* expr = arg.getAsExpr()->IgnoreImpCasts();
|
|
if (!idx)
|
|
{
|
|
offsetExpr = expr;
|
|
const clang::UnaryExprOrTypeTraitExpr* uExpr = (clang::UnaryExprOrTypeTraitExpr*)expr;
|
|
llvm::APSInt offsetLiteral;
|
|
if (expr->getStmtClass() == clang::Stmt::UnaryExprOrTypeTraitExprClass &&
|
|
uExpr->getKind() == clang::UETT_SizeOf)
|
|
{
|
|
const clang::Expr* argExpr = uExpr->getArgumentExpr();
|
|
while (argExpr->getStmtClass() == clang::Stmt::ParenExprClass)
|
|
argExpr = ((clang::ParenExpr*)argExpr)->getSubExpr();
|
|
offsetExpr = argExpr;
|
|
llvm::raw_string_ostream strStream(offsetExprStr);
|
|
argExpr->printPretty(strStream, nullptr, context.getPrintingPolicy());
|
|
}
|
|
else if (expr->isIntegerConstantExpr(offsetLiteral, context))
|
|
{
|
|
offsetExprStr = offsetLiteral.toString(10);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
directionExpr = expr;
|
|
if (!expr->isIntegerConstantExpr(direction, context))
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(expr->getLocStart(), AthenaError);
|
|
diag.AddString("Unable to use non-constant direction expression in Athena");
|
|
diag.AddSourceRange(clang::CharSourceRange(expr->getSourceRange(), true));
|
|
}
|
|
bad = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
++idx;
|
|
}
|
|
if (bad)
|
|
continue;
|
|
|
|
int64_t directionVal = direction.getSExtValue();
|
|
if (directionVal < 0 || directionVal > 2)
|
|
{
|
|
if (!p)
|
|
{
|
|
if (directionExpr)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(directionExpr->getLocStart(), AthenaError);
|
|
diag.AddString("Direction parameter must be 'Begin', 'Current', or 'End'");
|
|
diag.AddSourceRange(clang::CharSourceRange(directionExpr->getSourceRange(), true));
|
|
}
|
|
else
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
|
|
diag.AddString("Direction parameter must be 'Begin', 'Current', or 'End'");
|
|
diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (directionVal == 0)
|
|
{
|
|
if (!p)
|
|
fileOut << " __dna_reader.seek(" << offsetExprStr << ", Athena::Begin);\n";
|
|
else
|
|
fileOut << " __dna_writer.seek(" << offsetExprStr << ", Athena::Begin);\n";
|
|
}
|
|
else if (directionVal == 1)
|
|
{
|
|
if (!p)
|
|
fileOut << " __dna_reader.seek(" << offsetExprStr << ", Athena::Current);\n";
|
|
else
|
|
fileOut << " __dna_writer.seek(" << offsetExprStr << ", Athena::Current);\n";
|
|
}
|
|
else if (directionVal == 2)
|
|
{
|
|
if (!p)
|
|
fileOut << " __dna_reader.seek(" << offsetExprStr << ", Athena::End);\n";
|
|
else
|
|
fileOut << " __dna_writer.seek(" << offsetExprStr << ", Athena::End);\n";
|
|
}
|
|
|
|
}
|
|
else if (!tsDecl->getNameAsString().compare("Align"))
|
|
{
|
|
llvm::APSInt align(64, 0);
|
|
bool bad = false;
|
|
for (const clang::TemplateArgument& arg : *tsType)
|
|
{
|
|
if (arg.getKind() == clang::TemplateArgument::Expression)
|
|
{
|
|
const clang::Expr* expr = arg.getAsExpr();
|
|
if (!expr->isIntegerConstantExpr(align, context))
|
|
{
|
|
if (!p)
|
|
{
|
|
clang::DiagnosticBuilder diag = context.getDiagnostics().Report(expr->getLocStart(), AthenaError);
|
|
diag.AddString("Unable to use non-constant align expression in Athena");
|
|
diag.AddSourceRange(clang::CharSourceRange(expr->getSourceRange(), true));
|
|
}
|
|
bad = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (bad)
|
|
continue;
|
|
|
|
int64_t alignVal = align.getSExtValue();
|
|
if (alignVal)
|
|
{
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
if (alignVal == 32)
|
|
{
|
|
if (!p)
|
|
fileOut << " __dna_reader.seekAlign32();\n";
|
|
else
|
|
fileOut << " __dna_writer.seekAlign32();\n";
|
|
}
|
|
else if (align.isPowerOf2())
|
|
{
|
|
if (!p)
|
|
fileOut << " __dna_reader.seek((__dna_reader.position() + " << alignVal-1 << ") & ~" << alignVal-1 << ", Athena::Begin);\n";
|
|
else
|
|
fileOut << " __dna_writer.seek((__dna_writer.position() + " << alignVal-1 << ") & ~" << alignVal-1 << ", Athena::Begin);\n";
|
|
}
|
|
else
|
|
{
|
|
if (!p)
|
|
fileOut << " __dna_reader.seek((__dna_reader.position() + " << alignVal-1 << ") / " << alignVal << " * " << alignVal << ", Athena::Begin);\n";
|
|
else
|
|
fileOut << " __dna_writer.seek((__dna_writer.position() + " << alignVal-1 << ") / " << alignVal << " * " << alignVal << ", Athena::Begin);\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
else if (regType->getTypeClass() == clang::Type::Record)
|
|
{
|
|
const clang::CXXRecordDecl* cxxRDecl = regType->getAsCXXRecordDecl();
|
|
std::string baseDNA;
|
|
if (cxxRDecl && isDNARecord(cxxRDecl, baseDNA))
|
|
{
|
|
fileOut << " /* " << fieldName << " */\n";
|
|
fileOut << " " << fieldName << (p ? ".write(__dna_writer);\n" : ".read(__dna_reader);\n");
|
|
currentEndian = -1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
fileOut << "}\n\n";
|
|
|
|
}
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class ATDNAConsumer : public clang::ASTConsumer
|
|
{
|
|
ATDNAEmitVisitor emitVisitor;
|
|
llvm::raw_fd_ostream& fileOut;
|
|
public:
|
|
explicit ATDNAConsumer(clang::ASTContext& context, llvm::raw_fd_ostream& fo)
|
|
: emitVisitor(context, fo),
|
|
fileOut(fo) {}
|
|
void HandleTranslationUnit(clang::ASTContext& context)
|
|
{
|
|
/* Write file head */
|
|
fileOut << "/* Auto generated atdna implementation */\n"
|
|
"#include <Athena/Global.hpp>\n"
|
|
"#include <Athena/IStreamReader.hpp>\n"
|
|
"#include <Athena/IStreamWriter.hpp>\n\n";
|
|
for (const std::string& inputf : InputFilenames)
|
|
fileOut << "#include \"" << inputf << "\"\n";
|
|
fileOut << "\n";
|
|
|
|
/* Emit file */
|
|
emitVisitor.TraverseDecl(context.getTranslationUnitDecl());
|
|
}
|
|
};
|
|
|
|
class ATDNAAction : public clang::ASTFrontendAction
|
|
{
|
|
public:
|
|
explicit ATDNAAction() {}
|
|
std::unique_ptr<clang::ASTConsumer> CreateASTConsumer(clang::CompilerInstance& compiler,
|
|
llvm::StringRef /*filename*/)
|
|
{
|
|
llvm::raw_fd_ostream* fileout;
|
|
if (OutputFilename.size())
|
|
fileout = compiler.createOutputFile(OutputFilename, false, true, "", "", true);
|
|
else
|
|
fileout = compiler.createDefaultOutputFile(false, "a", "cpp");
|
|
AthenaError = compiler.getASTContext().getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Error, "Athena error: %0");
|
|
return std::unique_ptr<clang::ASTConsumer>(new ATDNAConsumer(compiler.getASTContext(), *fileout));
|
|
}
|
|
};
|
|
|
|
|
|
int main(int argc, const char** argv)
|
|
{
|
|
llvm::cl::ParseCommandLineOptions(argc, argv, "Athena DNA Generator");
|
|
if (Help)
|
|
llvm::cl::PrintHelpMessage();
|
|
|
|
std::vector<std::string> args = {"clang-tool",
|
|
"-fsyntax-only",
|
|
"-std=c++11"};
|
|
args.push_back("-I" + std::string(XSTR(INSTALL_PREFIX)) + "/lib/clang/" + CLANG_VERSION_STRING + "/include");
|
|
args.push_back("-I" + std::string(XSTR(INSTALL_PREFIX)) + "/include/Athena");
|
|
for (int a=1 ; a<argc ; ++a)
|
|
args.push_back(argv[a]);
|
|
|
|
llvm::IntrusiveRefCntPtr<clang::FileManager> fman(new clang::FileManager(clang::FileSystemOptions()));
|
|
clang::tooling::ToolInvocation TI(args, new ATDNAAction, fman.get());
|
|
if (TI.run())
|
|
return 0;
|
|
|
|
return -1;
|
|
}
|
|
|