/
nspace.d
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nspace.d
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// Compiler implementation of the D programming language
// Copyright (c) 1999-2015 by Digital Mars
// 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
module ddmd.nspace;
import ddmd.aggregate;
import ddmd.arraytypes;
import ddmd.dscope;
import ddmd.dsymbol;
import ddmd.globals;
import ddmd.hdrgen;
import ddmd.identifier;
import ddmd.root.outbuffer;
import ddmd.visitor;
private enum LOG = false;
/***********************************************************
* A namespace corresponding to a C++ namespace.
* Implies extern(C++).
*/
extern (C++) final class Nspace : ScopeDsymbol
{
public:
extern (D) this(Loc loc, Identifier ident, Dsymbols* members)
{
super(ident);
//printf("Nspace::Nspace(ident = %s)\n", ident->toChars());
this.loc = loc;
this.members = members;
}
override Dsymbol syntaxCopy(Dsymbol s)
{
auto ns = new Nspace(loc, ident, null);
return ScopeDsymbol.syntaxCopy(ns);
}
override void addMember(Scope* sc, ScopeDsymbol sds)
{
ScopeDsymbol.addMember(sc, sds);
if (members)
{
if (!symtab)
symtab = new DsymbolTable();
// The namespace becomes 'imported' into the enclosing scope
for (Scope* sce = sc; 1; sce = sce.enclosing)
{
ScopeDsymbol sds2 = cast(ScopeDsymbol)sce.scopesym;
if (sds2)
{
sds2.importScope(this, Prot(PROTpublic));
break;
}
}
assert(sc);
sc = sc.push(this);
sc.linkage = LINKcpp; // namespaces default to C++ linkage
sc.parent = this;
foreach (s; *members)
{
//printf("add %s to scope %s\n", s->toChars(), toChars());
s.addMember(sc, this);
}
sc.pop();
}
}
override void setScope(Scope* sc)
{
ScopeDsymbol.setScope(sc);
if (members)
{
assert(sc);
sc = sc.push(this);
sc.linkage = LINKcpp; // namespaces default to C++ linkage
sc.parent = this;
foreach (s; *members)
{
s.setScope(sc);
}
sc.pop();
}
}
override void semantic(Scope* sc)
{
if (semanticRun >= PASSsemantic)
return;
semanticRun = PASSsemantic;
static if (LOG)
{
printf("+Nspace::semantic('%s')\n", toChars());
}
if (_scope)
{
sc = _scope;
_scope = null;
}
parent = sc.parent;
if (members)
{
assert(sc);
sc = sc.push(this);
sc.linkage = LINKcpp; // note that namespaces imply C++ linkage
sc.parent = this;
foreach (s; *members)
{
s.importAll(sc);
}
foreach (s; *members)
{
static if (LOG)
{
printf("\tmember '%s', kind = '%s'\n", s.toChars(), s.kind());
}
s.semantic(sc);
}
sc.pop();
}
static if (LOG)
{
printf("-Nspace::semantic('%s')\n", toChars());
}
}
override void semantic2(Scope* sc)
{
if (semanticRun >= PASSsemantic2)
return;
semanticRun = PASSsemantic2;
static if (LOG)
{
printf("+Nspace::semantic2('%s')\n", toChars());
}
if (members)
{
assert(sc);
sc = sc.push(this);
sc.linkage = LINKcpp;
foreach (s; *members)
{
static if (LOG)
{
printf("\tmember '%s', kind = '%s'\n", s.toChars(), s.kind());
}
s.semantic2(sc);
}
sc.pop();
}
static if (LOG)
{
printf("-Nspace::semantic2('%s')\n", toChars());
}
}
override void semantic3(Scope* sc)
{
if (semanticRun >= PASSsemantic3)
return;
semanticRun = PASSsemantic3;
static if (LOG)
{
printf("Nspace::semantic3('%s')\n", toChars());
}
if (members)
{
sc = sc.push(this);
sc.linkage = LINKcpp;
foreach (s; *members)
{
s.semantic3(sc);
}
sc.pop();
}
}
override bool oneMember(Dsymbol* ps, Identifier ident)
{
return Dsymbol.oneMember(ps, ident);
}
override final Dsymbol search(Loc loc, Identifier ident, int flags = IgnoreNone)
{
//printf("%s.Nspace.search('%s')\n", toChars(), ident.toChars());
if (_scope && !symtab)
semantic(_scope);
if (!members || !symtab) // opaque or semantic() is not yet called
{
error("is forward referenced when looking for '%s'", ident.toChars());
return null;
}
return ScopeDsymbol.search(loc, ident, flags);
}
override int apply(Dsymbol_apply_ft_t fp, void* param)
{
if (members)
{
foreach (s; *members)
{
if (s)
{
if (s.apply(fp, param))
return 1;
}
}
}
return 0;
}
override bool hasPointers()
{
//printf("Nspace::hasPointers() %s\n", toChars());
if (members)
{
foreach (s; *members)
{
//printf(" s = %s %s\n", s->kind(), s->toChars());
if (s.hasPointers())
{
return true;
}
}
}
return false;
}
override void setFieldOffset(AggregateDeclaration ad, uint* poffset, bool isunion)
{
//printf("Nspace::setFieldOffset() %s\n", toChars());
if (_scope) // if fwd reference
semantic(null); // try to resolve it
if (members)
{
foreach (s; *members)
{
//printf("\t%s\n", s->toChars());
s.setFieldOffset(ad, poffset, isunion);
}
}
}
override const(char)* kind()
{
return "namespace";
}
override Nspace isNspace()
{
return this;
}
override void accept(Visitor v)
{
v.visit(this);
}
}