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globals.h
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globals.h
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/* Compiler implementation of the D programming language
* Copyright (C) 1999-2019 by The D Language Foundation, All Rights Reserved
* written by Walter Bright
* http://www.digitalmars.com
* Distributed under the Boost Software License, Version 1.0.
* http://www.boost.org/LICENSE_1_0.txt
* https://github.com/dlang/dmd/blob/master/src/dmd/globals.h
*/
#pragma once
#include "root/dcompat.h"
#include "root/ctfloat.h"
#include "root/outbuffer.h"
#include "root/filename.h"
#include "compiler.h"
// Can't include arraytypes.h here, need to declare these directly.
template <typename TYPE> struct Array;
typedef unsigned char Diagnostic;
enum
{
DIAGNOSTICerror, // generate an error
DIAGNOSTICinform, // generate a warning
DIAGNOSTICoff // disable diagnostic
};
// The state of array bounds checking
typedef unsigned char CHECKENABLE;
enum
{
CHECKENABLEdefault, // initial value
CHECKENABLEoff, // never do bounds checking
CHECKENABLEon, // always do bounds checking
CHECKENABLEsafeonly // do bounds checking only in @safe functions
};
typedef unsigned char CHECKACTION;
enum
{
CHECKACTION_D, // call D assert on failure
CHECKACTION_C, // call C assert on failure
CHECKACTION_halt, // cause program halt on failure
CHECKACTION_context // call D assert with the error context on failure
};
enum CPU
{
x87,
mmx,
sse,
sse2,
sse3,
ssse3,
sse4_1,
sse4_2,
avx, // AVX1 instruction set
avx2, // AVX2 instruction set
avx512, // AVX-512 instruction set
// Special values that don't survive past the command line processing
baseline, // (default) the minimum capability CPU
native // the machine the compiler is being run on
};
enum JsonFieldFlags
{
none = 0,
compilerInfo = (1 << 0),
buildInfo = (1 << 1),
modules = (1 << 2),
semantics = (1 << 3)
};
enum CppStdRevision
{
CppStdRevisionCpp98 = 199711,
CppStdRevisionCpp11 = 201103,
CppStdRevisionCpp14 = 201402,
CppStdRevisionCpp17 = 201703
};
// Put command line switches in here
struct Param
{
bool obj; // write object file
bool link; // perform link
bool dll; // generate shared dynamic library
bool lib; // write library file instead of object file(s)
bool multiobj; // break one object file into multiple ones
bool oneobj; // write one object file instead of multiple ones
bool trace; // insert profiling hooks
bool tracegc; // instrument calls to 'new'
bool verbose; // verbose compile
bool vcg_ast; // write-out codegen-ast
bool showColumns; // print character (column) numbers in diagnostics
bool vtls; // identify thread local variables
bool vgc; // identify gc usage
bool vfield; // identify non-mutable field variables
bool vcomplex; // identify complex/imaginary type usage
unsigned char symdebug; // insert debug symbolic information
bool symdebugref; // insert debug information for all referenced types, too
bool alwaysframe; // always emit standard stack frame
bool optimize; // run optimizer
bool map; // generate linker .map file
bool is64bit; // generate 64 bit code
bool isLP64; // generate code for LP64
bool isLinux; // generate code for linux
bool isOSX; // generate code for Mac OSX
bool isWindows; // generate code for Windows
bool isFreeBSD; // generate code for FreeBSD
bool isOpenBSD; // generate code for OpenBSD
bool isDragonFlyBSD;// generate code for DragonFlyBSD
bool isSolaris; // generate code for Solaris
bool hasObjectiveC; // target supports Objective-C
bool mscoff; // for Win32: write COFF object files instead of OMF
Diagnostic useDeprecated;
bool stackstomp; // add stack stomping code
bool useUnitTests; // generate unittest code
bool useInline; // inline expand functions
bool useDIP25; // implement http://wiki.dlang.org/DIP25
bool noDIP25; // revert to pre-DIP25 behavior
bool useDIP1021; // implement https://github.com/dlang/DIPs/blob/master/DIPs/DIP1021.md
bool release; // build release version
bool preservePaths; // true means don't strip path from source file
Diagnostic warnings;
unsigned char pic; // generate position-independent-code for shared libs
bool color; // use ANSI colors in console output
bool cov; // generate code coverage data
unsigned char covPercent; // 0..100 code coverage percentage required
bool nofloat; // code should not pull in floating point support
bool ignoreUnsupportedPragmas; // rather than error on them
bool useModuleInfo; // generate runtime module information
bool useTypeInfo; // generate runtime type information
bool useExceptions; // support exception handling
bool noSharedAccess; // read/write access to shared memory objects
bool betterC; // be a "better C" compiler; no dependency on D runtime
bool addMain; // add a default main() function
bool allInst; // generate code for all template instantiations
bool check10378; // check for issues transitioning to 10738
bool bug10378; // use pre-bugzilla 10378 search strategy
bool fix16997; // fix integral promotions for unary + - ~ operators
// https://issues.dlang.org/show_bug.cgi?id=16997
bool fixAliasThis; // if the current scope has an alias this, check it before searching upper scopes
bool vsafe; // use enhanced @safe checking
bool ehnogc; // use @nogc exception handling
bool dtorFields; // destruct fields of partially constructed objects
// https://issues.dlang.org/show_bug.cgi?id=14246
bool fieldwise; // do struct equality testing field-wise rather than by memcmp()
bool rvalueRefParam; // allow rvalues to be arguments to ref parameters
CppStdRevision cplusplus; // version of C++ name mangling to support
bool markdown; // enable Markdown replacements in Ddoc
bool vmarkdown; // list instances of Markdown replacements in Ddoc
bool showGaggedErrors; // print gagged errors anyway
bool printErrorContext; // print errors with the error context (the error line in the source file)
bool manual; // open browser on compiler manual
bool usage; // print usage and exit
bool mcpuUsage; // print help on -mcpu switch
bool transitionUsage; // print help on -transition switch
bool checkUsage; // print help on -check switch
bool checkActionUsage; // print help on -checkaction switch
bool revertUsage; // print help on -revert switch
bool previewUsage; // print help on -preview switch
bool externStdUsage; // print help on -extern-std switch
bool logo; // print logo;
CPU cpu; // CPU instruction set to target
CHECKENABLE useInvariants; // generate class invariant checks
CHECKENABLE useIn; // generate precondition checks
CHECKENABLE useOut; // generate postcondition checks
CHECKENABLE useArrayBounds; // when to generate code for array bounds checks
CHECKENABLE useAssert; // when to generate code for assert()'s
CHECKENABLE useSwitchError; // check for switches without a default
CHECKENABLE boundscheck; // state of -boundscheck switch
CHECKACTION checkAction; // action to take when bounds, asserts or switch defaults are violated
unsigned errorLimit;
DString argv0; // program name
Array<const char *> modFileAliasStrings; // array of char*'s of -I module filename alias strings
Array<const char *> *imppath; // array of char*'s of where to look for import modules
Array<const char *> *fileImppath; // array of char*'s of where to look for file import modules
DString objdir; // .obj/.lib file output directory
DString objname; // .obj file output name
DString libname; // .lib file output name
bool doDocComments; // process embedded documentation comments
const char *docdir; // write documentation file to docdir directory
const char *docname; // write documentation file to docname
Array<const char *> ddocfiles; // macro include files for Ddoc
bool doHdrGeneration; // process embedded documentation comments
DString hdrdir; // write 'header' file to docdir directory
DString hdrname; // write 'header' file to docname
bool hdrStripPlainFunctions; // strip the bodies of plain (non-template) functions
bool doJsonGeneration; // write JSON file
DString jsonfilename; // write JSON file to jsonfilename
unsigned jsonFieldFlags; // JSON field flags to include
OutBuffer *mixinOut; // write expanded mixins for debugging
const char *mixinFile; // .mixin file output name
int mixinLines; // Number of lines in writeMixins
unsigned debuglevel; // debug level
Array<const char *> *debugids; // debug identifiers
unsigned versionlevel; // version level
Array<const char *> *versionids; // version identifiers
DString defaultlibname; // default library for non-debug builds
DString debuglibname; // default library for debug builds
DString mscrtlib; // MS C runtime library
DString moduleDepsFile; // filename for deps output
OutBuffer *moduleDeps; // contents to be written to deps file
// Hidden debug switches
bool debugb;
bool debugc;
bool debugf;
bool debugr;
bool debugx;
bool debugy;
bool run; // run resulting executable
Strings runargs; // arguments for executable
// Linker stuff
Array<const char *> objfiles;
Array<const char *> linkswitches;
Array<bool> linkswitchIsForCC;
Array<const char *> libfiles;
Array<const char *> dllfiles;
Array<const char *> frameworks;
DString deffile;
DString resfile;
DString exefile;
DString mapfile;
};
typedef unsigned structalign_t;
// magic value means "match whatever the underlying C compiler does"
// other values are all powers of 2
#define STRUCTALIGN_DEFAULT ((structalign_t) ~0)
struct Global
{
DString inifilename;
const DString mars_ext;
DString obj_ext;
DString lib_ext;
DString dll_ext;
const DString doc_ext; // for Ddoc generated files
const DString ddoc_ext; // for Ddoc macro include files
const DString hdr_ext; // for D 'header' import files
const DString json_ext; // for JSON files
const DString map_ext; // for .map files
bool run_noext; // allow -run sources without extensions.
const DString copyright;
const DString written;
Array<const char *> *path; // Array of char*'s which form the import lookup path
Array<const char *> *filePath; // Array of char*'s which form the file import lookup path
DString version; // Compiler version string
DString vendor; // Compiler backend name
Param params;
unsigned errors; // number of errors reported so far
unsigned warnings; // number of warnings reported so far
unsigned gag; // !=0 means gag reporting of errors & warnings
unsigned gaggedErrors; // number of errors reported while gagged
unsigned gaggedWarnings; // number of warnings reported while gagged
void* console; // opaque pointer to console for controlling text attributes
Array<class Identifier*>* versionids; // command line versions and predefined versions
Array<class Identifier*>* debugids; // command line debug versions and predefined versions
/* Start gagging. Return the current number of gagged errors
*/
unsigned startGagging();
/* End gagging, restoring the old gagged state.
* Return true if errors occurred while gagged.
*/
bool endGagging(unsigned oldGagged);
/* Increment the error count to record that an error
* has occurred in the current context. An error message
* may or may not have been printed.
*/
void increaseErrorCount();
void _init();
/**
Returns: the version as the number that would be returned for __VERSION__
*/
unsigned versionNumber();
};
extern Global global;
// Because int64_t and friends may be any integral type of the correct size,
// we have to explicitly ask for the correct integer type to get the correct
// mangling with dmd. The #if logic here should match the mangling of
// Tint64 and Tuns64 in cppmangle.d.
#if MARS && DMD_VERSION >= 2079 && DMD_VERSION <= 2081 && \
__APPLE__ && __SIZEOF_LONG__ == 8
// DMD versions between 2.079 and 2.081 mapped D long to int64_t on OS X.
typedef uint64_t dinteger_t;
typedef int64_t sinteger_t;
typedef uint64_t uinteger_t;
#elif __SIZEOF_LONG__ == 8
// Be careful not to care about sign when using dinteger_t
// use this instead of integer_t to
// avoid conflicts with system #include's
typedef unsigned long dinteger_t;
// Signed and unsigned variants
typedef long sinteger_t;
typedef unsigned long uinteger_t;
#else
typedef unsigned long long dinteger_t;
typedef long long sinteger_t;
typedef unsigned long long uinteger_t;
#endif
typedef int8_t d_int8;
typedef uint8_t d_uns8;
typedef int16_t d_int16;
typedef uint16_t d_uns16;
typedef int32_t d_int32;
typedef uint32_t d_uns32;
typedef int64_t d_int64;
typedef uint64_t d_uns64;
// file location
struct Loc
{
const char *filename; // either absolute or relative to cwd
unsigned linnum;
unsigned charnum;
Loc()
{
linnum = 0;
charnum = 0;
filename = NULL;
}
Loc(const char *filename, unsigned linnum, unsigned charnum)
{
this->linnum = linnum;
this->charnum = charnum;
this->filename = filename;
}
const char *toChars(bool showColumns = global.params.showColumns) const;
bool equals(const Loc& loc) const;
};
enum LINK
{
LINKdefault,
LINKd,
LINKc,
LINKcpp,
LINKwindows,
LINKpascal,
LINKobjc,
LINKsystem
};
enum CPPMANGLE
{
CPPMANGLEdefault,
CPPMANGLEstruct,
CPPMANGLEclass
};
enum MATCH
{
MATCHnomatch, // no match
MATCHconvert, // match with conversions
MATCHconst, // match with conversion to const
MATCHexact // exact match
};
enum PINLINE
{
PINLINEdefault, // as specified on the command line
PINLINEnever, // never inline
PINLINEalways // always inline
};
typedef uinteger_t StorageClass;