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globals.d
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globals.d
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/**
* Compiler implementation of the
* $(LINK2 http://www.dlang.org, D programming language).
*
* Copyright: Copyright (C) 1999-2018 by The D Language Foundation, All Rights Reserved
* Authors: $(LINK2 http://www.digitalmars.com, Walter Bright)
* License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
* Source: $(LINK2 https://github.com/dlang/dmd/blob/master/src/dmd/globals.d, _globals.d)
* Documentation: https://dlang.org/phobos/dmd_globals.html
* Coverage: https://codecov.io/gh/dlang/dmd/src/master/src/dmd/globals.d
*/
module dmd.globals;
import core.stdc.stdint;
import dmd.root.array;
import dmd.root.filename;
import dmd.root.outbuffer;
import dmd.identifier;
template xversion(string s)
{
enum xversion = mixin(`{ version (` ~ s ~ `) return true; else return false; }`)();
}
enum TARGET : bool
{
Linux = xversion!`linux`,
OSX = xversion!`OSX`,
FreeBSD = xversion!`FreeBSD`,
OpenBSD = xversion!`OpenBSD`,
Solaris = xversion!`Solaris`,
Windows = xversion!`Windows`,
DragonFlyBSD = xversion!`DragonFlyBSD`,
}
enum Diagnostic : ubyte
{
error, // generate an error
inform, // generate a warning
off, // disable diagnostic
}
enum CHECKENABLE : ubyte
{
_default, // initial value
off, // never do checking
on, // always do checking
safeonly, // do checking only in @safe functions
}
enum CHECKACTION : ubyte
{
D, // call D assert on failure
C, // call C assert on failure
halt, // cause program halt 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
}
/**
Each flag represents a field that can be included in the JSON output.
NOTE: set type to uint so its size matches C++ unsigned type
*/
enum JsonFieldFlags : uint
{
none = 0,
compilerInfo = (1 << 0),
buildInfo = (1 << 1),
modules = (1 << 2),
semantics = (1 << 3),
}
// Put command line switches in here
struct Param
{
bool obj = true; // write object file
bool link = true; // 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
ubyte 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 = (size_t.sizeof == 8); // generate 64 bit code; true by default for 64 bit dmd
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 = false; // for Win32: write MsCoff object files instead of OMF
Diagnostic useDeprecated = Diagnostic.inform; // how use of deprecated features are handled
bool stackstomp; // add stack stomping code
bool useUnitTests; // generate unittest code
bool useInline = false; // inline expand functions
bool useDIP25; // implement http://wiki.dlang.org/DIP25
bool release; // build release version
bool preservePaths; // true means don't strip path from source file
Diagnostic warnings = Diagnostic.off; // how compiler warnings are handled
bool pic; // generate position-independent-code for shared libs
bool color; // use ANSI colors in console output
bool cov; // generate code coverage data
ubyte 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 = true; // generate runtime module information
bool useTypeInfo = true; // generate runtime type information
bool useExceptions = true; // support exception handling
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- https://issues.dlang.org/show_bug.cgi?id=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
/** The --transition=safe switch should only be used to show code with
* silent semantics changes related to @safe improvements. It should not be
* used to hide a feature that will have to go through deprecate-then-error
* before becoming default.
*/
bool markdown; // enable Markdown replacements in Ddoc
bool vmarkdown; // list instances of Markdown replacements in Ddoc
bool showGaggedErrors; // print gagged errors anyway
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 logo; // print compiler logo
CPU cpu = CPU.baseline; // CPU instruction set to target
CHECKENABLE useInvariants = CHECKENABLE._default; // generate class invariant checks
CHECKENABLE useIn = CHECKENABLE._default; // generate precondition checks
CHECKENABLE useOut = CHECKENABLE._default; // generate postcondition checks
CHECKENABLE useArrayBounds = CHECKENABLE._default; // when to generate code for array bounds checks
CHECKENABLE useAssert = CHECKENABLE._default; // when to generate code for assert()'s
CHECKENABLE useSwitchError = CHECKENABLE._default; // check for switches without a default
CHECKENABLE boundscheck = CHECKENABLE._default; // state of -boundscheck switch
CHECKACTION checkAction = CHECKACTION.D; // action to take when bounds, asserts or switch defaults are violated
uint errorLimit = 20;
const(char)[] 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
const(char)* objdir; // .obj/.lib file output directory
const(char)* objname; // .obj file output name
const(char)* 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
const(char)* hdrdir; // write 'header' file to docdir directory
const(char)* hdrname; // write 'header' file to docname
bool hdrStripPlainFunctions = true; // strip the bodies of plain (non-template) functions
bool doJsonGeneration; // write JSON file
const(char)* jsonfilename; // write JSON file to jsonfilename
JsonFieldFlags 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
uint debuglevel; // debug level
Array!(const(char)*)* debugids; // debug identifiers
uint versionlevel; // version level
Array!(const(char)*)* versionids; // version identifiers
const(char)* defaultlibname; // default library for non-debug builds
const(char)* debuglibname; // default library for debug builds
const(char)* mscrtlib; // MS C runtime library
const(char)* 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!(const(char)*) libfiles;
Array!(const(char)*) dllfiles;
const(char)* deffile;
const(char)* resfile;
const(char)* exefile;
const(char)* mapfile;
}
alias structalign_t = uint;
// magic value means "match whatever the underlying C compiler does"
// other values are all powers of 2
enum STRUCTALIGN_DEFAULT = (cast(structalign_t)~0);
struct Global
{
const(char)* inifilename;
const(char)* mars_ext = "d";
const(char)* obj_ext;
const(char)* lib_ext;
const(char)* dll_ext;
const(char)* doc_ext = "html"; // for Ddoc generated files
const(char)* ddoc_ext = "ddoc"; // for Ddoc macro include files
const(char)* hdr_ext = "di"; // for D 'header' import files
const(char)* json_ext = "json"; // for JSON files
const(char)* map_ext = "map"; // for .map files
bool run_noext; // allow -run sources without extensions.
const(char)* copyright = "Copyright (C) 1999-2018 by The D Language Foundation, All Rights Reserved";
const(char)* written = "written by Walter Bright";
const(char)* main_d = "__main.d"; // dummy filename for dummy main()
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
const(char)* _version;
const(char)* vendor; // Compiler backend name
Param params;
uint errors; // number of errors reported so far
uint warnings; // number of warnings reported so far
uint gag; // !=0 means gag reporting of errors & warnings
uint gaggedErrors; // number of errors reported while gagged
uint gaggedWarnings; // number of warnings reported while gagged
void* console; // opaque pointer to console for controlling text attributes
Array!Identifier* versionids; // command line versions and predefined versions
Array!Identifier* debugids; // command line debug versions and predefined versions
/* Start gagging. Return the current number of gagged errors
*/
extern (C++) uint startGagging()
{
++gag;
gaggedWarnings = 0;
return gaggedErrors;
}
/* End gagging, restoring the old gagged state.
* Return true if errors occurred while gagged.
*/
extern (C++) bool endGagging(uint oldGagged)
{
bool anyErrs = (gaggedErrors != oldGagged);
--gag;
// Restore the original state of gagged errors; set total errors
// to be original errors + new ungagged errors.
errors -= (gaggedErrors - oldGagged);
gaggedErrors = oldGagged;
return anyErrs;
}
/* 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.
*/
extern (C++) void increaseErrorCount()
{
if (gag)
++gaggedErrors;
++errors;
}
extern (C++) void _init()
{
static if (TARGET.Windows)
{
obj_ext = "obj";
}
else static if (TARGET.Linux || TARGET.OSX || TARGET.FreeBSD || TARGET.OpenBSD || TARGET.Solaris || TARGET.DragonFlyBSD)
{
obj_ext = "o";
}
else
{
static assert(0, "fix this");
}
static if (TARGET.Windows)
{
lib_ext = "lib";
}
else static if (TARGET.Linux || TARGET.OSX || TARGET.FreeBSD || TARGET.OpenBSD || TARGET.Solaris || TARGET.DragonFlyBSD)
{
lib_ext = "a";
}
else
{
static assert(0, "fix this");
}
static if (TARGET.Windows)
{
dll_ext = "dll";
}
else static if (TARGET.Linux || TARGET.FreeBSD || TARGET.OpenBSD || TARGET.Solaris || TARGET.DragonFlyBSD)
{
dll_ext = "so";
}
else static if (TARGET.OSX)
{
dll_ext = "dylib";
}
else
{
static assert(0, "fix this");
}
static if (TARGET.Windows)
{
run_noext = false;
}
else static if (TARGET.Linux || TARGET.OSX || TARGET.FreeBSD || TARGET.OpenBSD || TARGET.Solaris || TARGET.DragonFlyBSD)
{
// Allow 'script' D source files to have no extension.
run_noext = true;
}
else
{
static assert(0, "fix this");
}
static if (TARGET.Windows)
{
params.mscoff = params.is64bit;
}
_version = (import("VERSION") ~ '\0').ptr;
vendor = "Digital Mars D";
// -color=auto is the default value
import dmd.console : Console;
params.color = Console.detectTerminal();
}
/**
Returns: the version as the number that would be returned for __VERSION__
*/
extern(C++) uint versionNumber()
{
import core.stdc.ctype;
__gshared uint cached = 0;
if (cached == 0)
{
//
// parse _version
//
uint major = 0;
uint minor = 0;
bool point = false;
for (const(char)* p = _version + 1;; p++)
{
const c = *p;
if (isdigit(cast(char)c))
{
minor = minor * 10 + c - '0';
}
else if (c == '.')
{
if (point)
break; // ignore everything after second '.'
point = true;
major = minor;
minor = 0;
}
else
break;
}
cached = major * 1000 + minor;
}
return cached;
}
}
// 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
// Be careful not to care about sign when using dinteger_t
// use this instead of integer_t to
// avoid conflicts with system #include's
alias dinteger_t = ulong;
// Signed and unsigned variants
alias sinteger_t = long;
alias uinteger_t = ulong;
alias d_int8 = int8_t;
alias d_uns8 = uint8_t;
alias d_int16 = int16_t;
alias d_uns16 = uint16_t;
alias d_int32 = int32_t;
alias d_uns32 = uint32_t;
alias d_int64 = int64_t;
alias d_uns64 = uint64_t;
// file location
struct Loc
{
const(char)* filename; // either absolute or relative to cwd
uint linnum;
uint charnum;
static immutable Loc initial; /// use for default initialization of const ref Loc's
nothrow:
extern (D) this(const(char)* filename, uint linnum, uint charnum) pure
{
this.linnum = linnum;
this.charnum = charnum;
this.filename = filename;
}
extern (C++) const(char)* toChars() const
{
OutBuffer buf;
if (filename)
{
buf.writestring(filename);
}
if (linnum)
{
buf.writeByte('(');
buf.print(linnum);
if (global.params.showColumns && charnum)
{
buf.writeByte(',');
buf.print(charnum);
}
buf.writeByte(')');
}
return buf.extractString();
}
extern (C++) bool equals(ref const(Loc) loc) const
{
return (!global.params.showColumns || charnum == loc.charnum) &&
linnum == loc.linnum &&
FileName.equals(filename, loc.filename);
}
/******************
* Returns:
* true if Loc has been set to other than the default initialization
*/
bool isValid() const pure
{
return filename !is null;
}
}
enum LINK : int
{
default_,
d,
c,
cpp,
windows,
pascal,
objc,
system,
}
enum CPPMANGLE : int
{
def,
asStruct,
asClass,
}
enum MATCH : int
{
nomatch, // no match
convert, // match with conversions
constant, // match with conversion to const
exact, // exact match
}
enum PINLINE : int
{
default_, // as specified on the command line
never, // never inline
always, // always inline
}
alias StorageClass = uinteger_t;
extern (C++) __gshared Global global;