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dmodule.d
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dmodule.d
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/**
* Compiler implementation of the
* $(LINK2 http://www.dlang.org, D programming language).
*
* Copyright: Copyright (c) 1999-2017 by Digital Mars, 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/ddmd/dmodule.d, _dmodule.d)
*/
module ddmd.dmodule;
// Online documentation: https://dlang.org/phobos/ddmd_dmodule.html
import core.stdc.stdio;
import core.stdc.stdlib;
import core.stdc.string;
import ddmd.aggregate;
import ddmd.arraytypes;
import ddmd.astcodegen;
import ddmd.gluelayer;
import ddmd.dimport;
import ddmd.dmacro;
import ddmd.doc;
import ddmd.dscope;
import ddmd.dsymbol;
import ddmd.errors;
import ddmd.expression;
import ddmd.globals;
import ddmd.id;
import ddmd.identifier;
import ddmd.parse;
import ddmd.root.file;
import ddmd.root.filename;
import ddmd.root.outbuffer;
import ddmd.root.port;
import ddmd.semantic;
import ddmd.target;
import ddmd.visitor;
version(Windows) {
extern (C) char* getcwd(char* buffer, size_t maxlen);
} else {
import core.sys.posix.unistd : getcwd;
}
/* =========================== ===================== */
/********************************************
* Look for the source file if it's different from filename.
* Look for .di, .d, directory, and along global.path.
* Does not open the file.
* Output:
* path the path where the file was found if it was not the current directory
* Input:
* filename as supplied by the user
* global.path
* Returns:
* NULL if it's not different from filename.
*/
extern (C++) const(char)* lookForSourceFile(const(char)** path, const(char)* filename)
{
*path = null;
/* Search along global.path for .di file, then .d file.
*/
const(char)* sdi = FileName.forceExt(filename, global.hdr_ext);
if (FileName.exists(sdi) == 1)
return sdi;
const(char)* sd = FileName.forceExt(filename, global.mars_ext);
if (FileName.exists(sd) == 1)
return sd;
if (FileName.exists(filename) == 2)
{
/* The filename exists and it's a directory.
* Therefore, the result should be: filename/package.d
* iff filename/package.d is a file
*/
const(char)* ni = FileName.combine(filename, "package.di");
if (FileName.exists(ni) == 1)
return ni;
FileName.free(ni);
const(char)* n = FileName.combine(filename, "package.d");
if (FileName.exists(n) == 1)
return n;
FileName.free(n);
}
if (FileName.absolute(filename))
return null;
if (!global.path)
return null;
for (size_t i = 0; i < global.path.dim; i++)
{
const(char)* p = (*global.path)[i];
const(char)* n = FileName.combine(p, sdi);
if (FileName.exists(n) == 1) {
*path = p;
return n;
}
FileName.free(n);
n = FileName.combine(p, sd);
if (FileName.exists(n) == 1) {
*path = p;
return n;
}
FileName.free(n);
const(char)* b = FileName.removeExt(filename);
n = FileName.combine(p, b);
FileName.free(b);
if (FileName.exists(n) == 2)
{
const(char)* n2i = FileName.combine(n, "package.di");
if (FileName.exists(n2i) == 1)
return n2i;
FileName.free(n2i);
const(char)* n2 = FileName.combine(n, "package.d");
if (FileName.exists(n2) == 1) {
*path = p;
return n2;
}
FileName.free(n2);
}
FileName.free(n);
}
return null;
}
// function used to call semantic3 on a module's dependencies
void semantic3OnDependencies(Module m)
{
if (!m)
return;
if (m.semanticRun > PASSsemantic3)
return;
m.semantic3(null);
foreach (i; 1 .. m.aimports.dim)
semantic3OnDependencies(m.aimports[i]);
}
enum PKG : int
{
PKGunknown, // not yet determined whether it's a package.d or not
PKGmodule, // already determined that's an actual package.d
PKGpackage, // already determined that's an actual package
}
alias PKGunknown = PKG.PKGunknown;
alias PKGmodule = PKG.PKGmodule;
alias PKGpackage = PKG.PKGpackage;
/***********************************************************
*/
extern (C++) class Package : ScopeDsymbol
{
PKG isPkgMod;
uint tag; // auto incremented tag, used to mask package tree in scopes
Module mod; // !=null if isPkgMod == PKGmodule
final extern (D) this(Identifier ident)
{
super(ident);
this.isPkgMod = PKGunknown;
__gshared uint packageTag;
this.tag = packageTag++;
}
override const(char)* kind() const
{
return "package";
}
/****************************************************
* Input:
* packages[] the pkg1.pkg2 of pkg1.pkg2.mod
* Returns:
* the symbol table that mod should be inserted into
* Output:
* *pparent the rightmost package, i.e. pkg2, or NULL if no packages
* *ppkg the leftmost package, i.e. pkg1, or NULL if no packages
*/
static DsymbolTable resolve(Identifiers* packages, Dsymbol* pparent, Package* ppkg)
{
DsymbolTable dst = Module.modules;
Dsymbol parent = null;
//printf("Package::resolve()\n");
if (ppkg)
*ppkg = null;
if (packages)
{
for (size_t i = 0; i < packages.dim; i++)
{
Identifier pid = (*packages)[i];
Package pkg;
Dsymbol p = dst.lookup(pid);
if (!p)
{
pkg = new Package(pid);
dst.insert(pkg);
pkg.parent = parent;
pkg.symtab = new DsymbolTable();
}
else
{
pkg = p.isPackage();
assert(pkg);
// It might already be a module, not a package, but that needs
// to be checked at a higher level, where a nice error message
// can be generated.
// dot net needs modules and packages with same name
// But we still need a symbol table for it
if (!pkg.symtab)
pkg.symtab = new DsymbolTable();
}
parent = pkg;
dst = pkg.symtab;
if (ppkg && !*ppkg)
*ppkg = pkg;
if (pkg.isModule())
{
// Return the module so that a nice error message can be generated
if (ppkg)
*ppkg = cast(Package)p;
break;
}
}
}
if (pparent)
*pparent = parent;
return dst;
}
override final inout(Package) isPackage() inout
{
return this;
}
/**
* Checks if pkg is a sub-package of this
*
* For example, if this qualifies to 'a1.a2' and pkg - to 'a1.a2.a3',
* this function returns 'true'. If it is other way around or qualified
* package paths conflict function returns 'false'.
*
* Params:
* pkg = possible subpackage
*
* Returns:
* see description
*/
final bool isAncestorPackageOf(const Package pkg) const
{
if (this == pkg)
return true;
if (!pkg || !pkg.parent)
return false;
return isAncestorPackageOf(pkg.parent.isPackage());
}
override Dsymbol search(Loc loc, Identifier ident, int flags = SearchLocalsOnly)
{
//printf("%s Package.search('%s', flags = x%x)\n", toChars(), ident.toChars(), flags);
flags &= ~SearchLocalsOnly; // searching an import is always transitive
if (!isModule() && mod)
{
// Prefer full package name.
Dsymbol s = symtab ? symtab.lookup(ident) : null;
if (s)
return s;
//printf("[%s] through pkdmod: %s\n", loc.toChars(), toChars());
return mod.search(loc, ident, flags);
}
return ScopeDsymbol.search(loc, ident, flags);
}
override void accept(Visitor v)
{
v.visit(this);
}
final Module isPackageMod()
{
if (isPkgMod == PKGmodule)
{
return mod;
}
return null;
}
}
/***********************************************************
*/
extern (C++) final class Module : Package
{
extern (C++) static __gshared Module rootModule;
extern (C++) static __gshared DsymbolTable modules; // symbol table of all modules
extern (C++) static __gshared Modules amodules; // array of all modules
extern (C++) static __gshared Dsymbols deferred; // deferred Dsymbol's needing semantic() run on them
extern (C++) static __gshared Dsymbols deferred2; // deferred Dsymbol's needing semantic2() run on them
extern (C++) static __gshared Dsymbols deferred3; // deferred Dsymbol's needing semantic3() run on them
extern (C++) static __gshared uint dprogress; // progress resolving the deferred list
static void _init()
{
modules = new DsymbolTable();
}
extern (C++) static __gshared AggregateDeclaration moduleinfo;
const(char)* arg; // original argument name
ModuleDeclaration* md; // if !=null, the contents of the ModuleDeclaration declaration
File* srcfile; // input source file
const(char)* srcfilePath; // the path prefix to the srcfile if it applies
File* objfile; // output .obj file
File* hdrfile; // 'header' file
File* docfile; // output documentation file
uint errors; // if any errors in file
uint numlines; // number of lines in source file
int isDocFile; // if it is a documentation input file, not D source
bool isPackageFile; // if it is a package.d
int needmoduleinfo;
/**
How many unit tests have been seen so far in this module. Makes it so the
unit test name is reproducible regardless of whether it's compiled
separately or all at once.
*/
uint unitTestCounter; // how many unittests have been seen so far
int selfimports; // 0: don't know, 1: does not, 2: does
/*************************************
* Return true if module imports itself.
*/
bool selfImports()
{
//printf("Module::selfImports() %s\n", toChars());
if (selfimports == 0)
{
for (size_t i = 0; i < amodules.dim; i++)
amodules[i].insearch = 0;
selfimports = imports(this) + 1;
for (size_t i = 0; i < amodules.dim; i++)
amodules[i].insearch = 0;
}
return selfimports == 2;
}
int rootimports; // 0: don't know, 1: does not, 2: does
/*************************************
* Return true if module imports root module.
*/
bool rootImports()
{
//printf("Module::rootImports() %s\n", toChars());
if (rootimports == 0)
{
for (size_t i = 0; i < amodules.dim; i++)
amodules[i].insearch = 0;
rootimports = 1;
for (size_t i = 0; i < amodules.dim; ++i)
{
Module m = amodules[i];
if (m.isRoot() && imports(m))
{
rootimports = 2;
break;
}
}
for (size_t i = 0; i < amodules.dim; i++)
amodules[i].insearch = 0;
}
return rootimports == 2;
}
int insearch;
Identifier searchCacheIdent;
Dsymbol searchCacheSymbol; // cached value of search
int searchCacheFlags; // cached flags
// module from command line we're imported from,
// i.e. a module that will be taken all the
// way to an object file
Module importedFrom;
Dsymbols* decldefs; // top level declarations for this Module
Modules aimports; // all imported modules
uint debuglevel; // debug level
Strings* debugids; // debug identifiers
Strings* debugidsNot; // forward referenced debug identifiers
uint versionlevel; // version level
Strings* versionids; // version identifiers
Strings* versionidsNot; // forward referenced version identifiers
Macro* macrotable; // document comment macros
Escape* escapetable; // document comment escapes
size_t nameoffset; // offset of module name from start of ModuleInfo
size_t namelen; // length of module name in characters
extern (D) this(const(char)* filename, Identifier ident, int doDocComment, int doHdrGen)
{
super(ident);
const(char)* srcfilename;
//printf("Module::Module(filename = '%s', ident = '%s')\n", filename, ident.toChars());
this.arg = filename;
srcfilename = FileName.defaultExt(filename, global.mars_ext);
if (global.run_noext && global.params.run && !FileName.ext(filename) && FileName.exists(srcfilename) == 0 && FileName.exists(filename) == 1)
{
FileName.free(srcfilename);
srcfilename = FileName.removeExt(filename); // just does a mem.strdup(filename)
}
else if (!FileName.equalsExt(srcfilename, global.mars_ext) && !FileName.equalsExt(srcfilename, global.hdr_ext) && !FileName.equalsExt(srcfilename, "dd"))
{
error("source file name '%s' must have .%s extension", srcfilename, global.mars_ext);
fatal();
}
srcfile = new File(srcfilename);
if(!FileName.absolute(srcfilename)) {
srcfilePath = getcwd(null, 0);
}
objfile = setOutfile(global.params.objname, global.params.objdir, filename, global.obj_ext);
if (doDocComment)
setDocfile();
if (doHdrGen)
hdrfile = setOutfile(global.params.hdrname, global.params.hdrdir, arg, global.hdr_ext);
//objfile = new File(objfilename);
}
static Module create(const(char)* filename, Identifier ident, int doDocComment, int doHdrGen)
{
return new Module(filename, ident, doDocComment, doHdrGen);
}
static Module load(Loc loc, Identifiers* packages, Identifier ident)
{
//printf("Module::load(ident = '%s')\n", ident.toChars());
// Build module filename by turning:
// foo.bar.baz
// into:
// foo\bar\baz
auto filename = ident.toChars();
if (packages && packages.dim)
{
OutBuffer buf;
OutBuffer dotmods;
auto ms = global.params.modFileAliasStrings;
const msdim = ms ? ms.dim : 0;
void checkModFileAlias(const(char)* p)
{
/* Check and replace the contents of buf[] with
* an alias string from global.params.modFileAliasStrings[]
*/
dotmods.writestring(p);
Lmain:
for (size_t j = msdim; j--;)
{
const m = (*ms)[j];
const q = strchr(m, '=');
assert(q);
if (dotmods.offset <= q - m && memcmp(dotmods.peekString(), m, q - m) == 0)
{
buf.reset();
auto qlen = strlen(q + 1);
if (qlen && (q[qlen] == '/' || q[qlen] == '\\'))
--qlen; // remove trailing separator
buf.writestring(q[1 .. qlen + 1]);
break Lmain; // last matching entry in ms[] wins
}
}
dotmods.writeByte('.');
}
for (size_t i = 0; i < packages.dim; i++)
{
Identifier pid = (*packages)[i];
const p = pid.toChars();
buf.writestring(p);
if (msdim)
checkModFileAlias(p);
version (Windows)
{
buf.writeByte('\\');
}
else
{
buf.writeByte('/');
}
}
buf.writestring(filename);
if (msdim)
checkModFileAlias(filename);
buf.writeByte(0);
filename = buf.extractData();
}
auto m = new Module(filename, ident, 0, 0);
m.loc = loc;
/* Look for the source file
*/
const(char)* path;
const(char)* result = lookForSourceFile(&path, filename);
if (result)
{
m.srcfile = new File(result);
if(path) {
m.srcfilePath = path;
} else if(!FileName.absolute(result)) {
m.srcfilePath = getcwd(null, 0);
}
}
if (!m.read(loc))
return null;
if (global.params.verbose)
{
fprintf(global.stdmsg, "import ");
if (packages)
{
for (size_t i = 0; i < packages.dim; i++)
{
Identifier pid = (*packages)[i];
fprintf(global.stdmsg, "%s.", pid.toChars());
}
}
fprintf(global.stdmsg, "%s\t(%s)\n", ident.toChars(), m.srcfile.toChars());
}
m = m.parse();
Target.loadModule(m);
return m;
}
override const(char)* kind() const
{
return "module";
}
/*********************************************
* Combines things into output file name for .html and .di files.
* Input:
* name Command line name given for the file, NULL if none
* dir Command line directory given for the file, NULL if none
* arg Name of the source file
* ext File name extension to use if 'name' is NULL
* global.params.preservePaths get output path from arg
* srcfile Input file - output file name must not match input file
*/
File* setOutfile(const(char)* name, const(char)* dir, const(char)* arg, const(char)* ext)
{
const(char)* docfilename;
if (name)
{
docfilename = name;
}
else
{
const(char)* argdoc;
if (global.params.preservePaths)
argdoc = arg;
else
argdoc = FileName.name(arg);
// If argdoc doesn't have an absolute path, make it relative to dir
if (!FileName.absolute(argdoc))
{
//FileName::ensurePathExists(dir);
argdoc = FileName.combine(dir, argdoc);
}
docfilename = FileName.forceExt(argdoc, ext);
}
if (FileName.equals(docfilename, srcfile.name.str))
{
error("source file and output file have same name '%s'", srcfile.name.str);
fatal();
}
return new File(docfilename);
}
void setDocfile()
{
docfile = setOutfile(global.params.docname, global.params.docdir, arg, global.doc_ext);
}
// read file, returns 'true' if succeed, 'false' otherwise.
bool read(Loc loc)
{
//printf("Module::read('%s') file '%s'\n", toChars(), srcfile.toChars());
if (srcfile.read())
{
if (!strcmp(srcfile.toChars(), "object.d"))
{
.error(loc, "cannot find source code for runtime library file 'object.d'");
errorSupplemental(loc, "dmd might not be correctly installed. Run 'dmd -man' for installation instructions.");
errorSupplemental(loc, "config file: %s", FileName.canonicalName(global.inifilename));
}
else
{
// if module is not named 'package' but we're trying to read 'package.d', we're looking for a package module
bool isPackageMod = (strcmp(toChars(), "package") != 0) && (strcmp(srcfile.name.name(), "package.d") == 0 || (strcmp(srcfile.name.name(), "package.di") == 0));
if (isPackageMod)
.error(loc, "importing package '%s' requires a 'package.d' file which cannot be found in '%s'", toChars(), srcfile.toChars());
else
error(loc, "is in file '%s' which cannot be read", srcfile.toChars());
}
if (!global.gag)
{
/* Print path
*/
if (global.path)
{
for (size_t i = 0; i < global.path.dim; i++)
{
const(char)* p = (*global.path)[i];
fprintf(stderr, "import path[%llu] = %s\n", cast(ulong)i, p);
}
}
else
fprintf(stderr, "Specify path to file '%s' with -I switch\n", srcfile.toChars());
fatal();
}
return false;
}
return true;
}
// syntactic parse
Module parse()
{
//printf("Module::parse(srcfile='%s') this=%p\n", srcfile.name.toChars(), this);
const(char)* srcname = srcfile.name.toChars();
//printf("Module::parse(srcname = '%s')\n", srcname);
isPackageFile = (strcmp(srcfile.name.name(), "package.d") == 0 ||
strcmp(srcfile.name.name(), "package.di") == 0);
char* buf = cast(char*)srcfile.buffer;
size_t buflen = srcfile.len;
if (buflen >= 2)
{
/* Convert all non-UTF-8 formats to UTF-8.
* BOM : http://www.unicode.org/faq/utf_bom.html
* 00 00 FE FF UTF-32BE, big-endian
* FF FE 00 00 UTF-32LE, little-endian
* FE FF UTF-16BE, big-endian
* FF FE UTF-16LE, little-endian
* EF BB BF UTF-8
*/
uint le;
uint bom = 1; // assume there's a BOM
if (buf[0] == 0xFF && buf[1] == 0xFE)
{
if (buflen >= 4 && buf[2] == 0 && buf[3] == 0)
{
// UTF-32LE
le = 1;
Lutf32:
OutBuffer dbuf;
uint* pu = cast(uint*)buf;
uint* pumax = &pu[buflen / 4];
if (buflen & 3)
{
error("odd length of UTF-32 char source %u", buflen);
fatal();
}
dbuf.reserve(buflen / 4);
for (pu += bom; pu < pumax; pu++)
{
uint u;
u = le ? Port.readlongLE(pu) : Port.readlongBE(pu);
if (u & ~0x7F)
{
if (u > 0x10FFFF)
{
error("UTF-32 value %08x greater than 0x10FFFF", u);
fatal();
}
dbuf.writeUTF8(u);
}
else
dbuf.writeByte(u);
}
dbuf.writeByte(0); // add 0 as sentinel for scanner
buflen = dbuf.offset - 1; // don't include sentinel in count
buf = dbuf.extractData();
}
else
{
// UTF-16LE (X86)
// Convert it to UTF-8
le = 1;
Lutf16:
OutBuffer dbuf;
ushort* pu = cast(ushort*)buf;
ushort* pumax = &pu[buflen / 2];
if (buflen & 1)
{
error("odd length of UTF-16 char source %u", buflen);
fatal();
}
dbuf.reserve(buflen / 2);
for (pu += bom; pu < pumax; pu++)
{
uint u;
u = le ? Port.readwordLE(pu) : Port.readwordBE(pu);
if (u & ~0x7F)
{
if (u >= 0xD800 && u <= 0xDBFF)
{
uint u2;
if (++pu > pumax)
{
error("surrogate UTF-16 high value %04x at end of file", u);
fatal();
}
u2 = le ? Port.readwordLE(pu) : Port.readwordBE(pu);
if (u2 < 0xDC00 || u2 > 0xDFFF)
{
error("surrogate UTF-16 low value %04x out of range", u2);
fatal();
}
u = (u - 0xD7C0) << 10;
u |= (u2 - 0xDC00);
}
else if (u >= 0xDC00 && u <= 0xDFFF)
{
error("unpaired surrogate UTF-16 value %04x", u);
fatal();
}
else if (u == 0xFFFE || u == 0xFFFF)
{
error("illegal UTF-16 value %04x", u);
fatal();
}
dbuf.writeUTF8(u);
}
else
dbuf.writeByte(u);
}
dbuf.writeByte(0); // add 0 as sentinel for scanner
buflen = dbuf.offset - 1; // don't include sentinel in count
buf = dbuf.extractData();
}
}
else if (buf[0] == 0xFE && buf[1] == 0xFF)
{
// UTF-16BE
le = 0;
goto Lutf16;
}
else if (buflen >= 4 && buf[0] == 0 && buf[1] == 0 && buf[2] == 0xFE && buf[3] == 0xFF)
{
// UTF-32BE
le = 0;
goto Lutf32;
}
else if (buflen >= 3 && buf[0] == 0xEF && buf[1] == 0xBB && buf[2] == 0xBF)
{
// UTF-8
buf += 3;
buflen -= 3;
}
else
{
/* There is no BOM. Make use of Arcane Jill's insight that
* the first char of D source must be ASCII to
* figure out the encoding.
*/
bom = 0;
if (buflen >= 4)
{
if (buf[1] == 0 && buf[2] == 0 && buf[3] == 0)
{
// UTF-32LE
le = 1;
goto Lutf32;
}
else if (buf[0] == 0 && buf[1] == 0 && buf[2] == 0)
{
// UTF-32BE
le = 0;
goto Lutf32;
}
}
if (buflen >= 2)
{
if (buf[1] == 0)
{
// UTF-16LE
le = 1;
goto Lutf16;
}
else if (buf[0] == 0)
{
// UTF-16BE
le = 0;
goto Lutf16;
}
}
// It's UTF-8
if (buf[0] >= 0x80)
{
error("source file must start with BOM or ASCII character, not \\x%02X", buf[0]);
fatal();
}
}
}
/* If it starts with the string "Ddoc", then it's a documentation
* source file.
*/
if (buflen >= 4 && memcmp(buf, cast(char*)"Ddoc", 4) == 0)
{
comment = buf + 4;
isDocFile = 1;
if (!docfile)
setDocfile();
return this;
}
/* If it has the extension ".dd", it is also a documentation
* source file. Documentation source files may begin with "Ddoc"
* but do not have to if they have the .dd extension.
* https://issues.dlang.org/show_bug.cgi?id=15465
*/
if (FileName.equalsExt(arg, "dd"))
{
comment = buf; // the optional Ddoc, if present, is handled above.
isDocFile = 1;
if (!docfile)
setDocfile();
return this;
}
{
scope p = new Parser!ASTCodegen(this, buf[0 .. buflen], docfile !is null);
p.nextToken();
members = p.parseModule();
md = p.md;
numlines = p.scanloc.linnum;
if (p.errors)
++global.errors;
}
if (srcfile._ref == 0)
.free(srcfile.buffer);
srcfile.buffer = null;
srcfile.len = 0;
/* The symbol table into which the module is to be inserted.
*/
DsymbolTable dst;
if (md)
{
/* A ModuleDeclaration, md, was provided.
* The ModuleDeclaration sets the packages this module appears in, and
* the name of this module.
*/
this.ident = md.id;
Package ppack = null;
dst = Package.resolve(md.packages, &this.parent, &ppack);
assert(dst);
Module m = ppack ? ppack.isModule() : null;
if (m && (strcmp(m.srcfile.name.name(), "package.d") != 0 &&
strcmp(m.srcfile.name.name(), "package.di") != 0))
{
.error(md.loc, "package name '%s' conflicts with usage as a module name in file %s", ppack.toPrettyChars(), m.srcfile.toChars());
}
}
else
{
/* The name of the module is set to the source file name.
* There are no packages.
*/
dst = modules; // and so this module goes into global module symbol table
/* Check to see if module name is a valid identifier
*/
if (!Identifier.isValidIdentifier(this.ident.toChars()))
error("has non-identifier characters in filename, use module declaration instead");
}
// Add internal used functions in 'object' module members.
if (!parent && ident == Id.object)
{
immutable code_ArrayEq = "bool _ArrayEq(T1, T2)(T1[] a, T2[] b) {\n if (a.length != b.length) return false;\n foreach (size_t i; 0 .. a.length) { if (a[i] != b[i]) return false; }\n return true; }\n";
immutable code_ArrayPostblit = "void _ArrayPostblit(T)(T[] a) { foreach (ref T e; a) e.__xpostblit(); }\n";
immutable code_ArrayDtor = "void _ArrayDtor(T)(T[] a) { foreach_reverse (ref T e; a) e.__xdtor(); }\n";
immutable code_xopEquals = "bool _xopEquals(in void*, in void*) { throw new Error(\"TypeInfo.equals is not implemented\"); }\n";
immutable code_xopCmp = "bool _xopCmp(in void*, in void*) { throw new Error(\"TypeInfo.compare is not implemented\"); }\n";
Identifier arreq = Id._ArrayEq;
Identifier xopeq = Identifier.idPool("_xopEquals");
Identifier xopcmp = Identifier.idPool("_xopCmp");
for (size_t i = 0; i < members.dim; i++)
{
Dsymbol sx = (*members)[i];
if (!sx)
continue;
if (arreq && sx.ident == arreq)
arreq = null;
if (xopeq && sx.ident == xopeq)
xopeq = null;
if (xopcmp && sx.ident == xopcmp)
xopcmp = null;
}
if (arreq)
{
scope p = new Parser!ASTCodegen(loc, this, code_ArrayEq, false);
p.nextToken();
members.append(p.parseDeclDefs(0));
}
{
scope p = new Parser!ASTCodegen(loc, this, code_ArrayPostblit, false);
p.nextToken();
members.append(p.parseDeclDefs(0));
}
{
scope p = new Parser!ASTCodegen(loc, this, code_ArrayDtor, false);
p.nextToken();
members.append(p.parseDeclDefs(0));
}
if (xopeq)
{
scope p = new Parser!ASTCodegen(loc, this, code_xopEquals, false);
p.nextToken();
members.append(p.parseDeclDefs(0));
}
if (xopcmp)
{
scope p = new Parser!ASTCodegen(loc, this, code_xopCmp, false);
p.nextToken();
members.append(p.parseDeclDefs(0));
}
}
// Insert module into the symbol table
Dsymbol s = this;
if (isPackageFile)
{
/* If the source tree is as follows:
* pkg/
* +- package.d
* +- common.d
* the 'pkg' will be incorporated to the internal package tree in two ways:
* import pkg;
* and:
* import pkg.common;
*
* If both are used in one compilation, 'pkg' as a module (== pkg/package.d)
* and a package name 'pkg' will conflict each other.
*
* To avoid the conflict:
* 1. If preceding package name insertion had occurred by Package::resolve,
* later package.d loading will change Package::isPkgMod to PKGmodule and set Package::mod.
* 2. Otherwise, 'package.d' wrapped by 'Package' is inserted to the internal tree in here.
*/
auto p = new Package(ident);
p.parent = this.parent;
p.isPkgMod = PKGmodule;
p.mod = this;
p.tag = this.tag; // reuse the same package tag
p.symtab = new DsymbolTable();
s = p;
}
if (!dst.insert(s))
{
/* It conflicts with a name that is already in the symbol table.
* Figure out what went wrong, and issue error message.
*/
Dsymbol prev = dst.lookup(ident);
assert(prev);
if (Module mprev = prev.isModule())
{
if (FileName.compare(srcname, mprev.srcfile.toChars()) != 0)
error(loc, "from file %s conflicts with another module %s from file %s", srcname, mprev.toChars(), mprev.srcfile.toChars());
else if (isRoot() && mprev.isRoot())
error(loc, "from file %s is specified twice on the command line", srcname);
else
error(loc, "from file %s must be imported with 'import %s;'", srcname, toPrettyChars());
// https://issues.dlang.org/show_bug.cgi?id=14446
// Return previously parsed module to avoid AST duplication ICE.
return mprev;
}
else if (Package pkg = prev.isPackage())
{
if (pkg.isPkgMod == PKGunknown && isPackageFile)
{
/* If the previous inserted Package is not yet determined as package.d,
* link it to the actual module.
*/
pkg.isPkgMod = PKGmodule;
pkg.mod = this;
pkg.tag = this.tag; // reuse the same package tag
}
else
error(md ? md.loc : loc, "from file %s conflicts with package name %s", srcname, pkg.toChars());
}
else
assert(global.errors);
}
else
{
// Add to global array of all modules
amodules.push(this);
}
return this;
}
override void importAll(Scope* prevsc)
{
//printf("+Module::importAll(this = %p, '%s'): parent = %p\n", this, toChars(), parent);