mirror of
https://github.com/xomboverlord/ldc.git
synced 2026-01-18 05:43:14 +01:00
cb341586e3
This corresponds to DMD commit a913ce4bc59a94a022a27e390fc841f4aededffb. Doesn't build Phobos yet.
430 lines
14 KiB
C++
430 lines
14 KiB
C++
|
|
// Compiler implementation of the D programming language
|
|
// Copyright (c) 1999-2013 by Digital Mars
|
|
// All Rights Reserved
|
|
// written by Walter Bright
|
|
// http://www.digitalmars.com
|
|
// License for redistribution is by either the Artistic License
|
|
// in artistic.txt, or the GNU General Public License in gnu.txt.
|
|
// See the included readme.txt for details.
|
|
|
|
#ifndef DMD_TEMPLATE_H
|
|
#define DMD_TEMPLATE_H
|
|
|
|
#ifdef __DMC__
|
|
#pragma once
|
|
#endif /* __DMC__ */
|
|
|
|
#if IN_LLVM
|
|
#include <string>
|
|
#endif
|
|
#include "root.h"
|
|
#include "arraytypes.h"
|
|
#include "dsymbol.h"
|
|
|
|
|
|
struct OutBuffer;
|
|
class Identifier;
|
|
class TemplateInstance;
|
|
class TemplateParameter;
|
|
class TemplateTypeParameter;
|
|
class TemplateThisParameter;
|
|
class TemplateValueParameter;
|
|
class TemplateAliasParameter;
|
|
class TemplateTupleParameter;
|
|
class Type;
|
|
class TypeQualified;
|
|
class TypeTypeof;
|
|
struct Scope;
|
|
class Expression;
|
|
class AliasDeclaration;
|
|
class FuncDeclaration;
|
|
struct HdrGenState;
|
|
class Parameter;
|
|
enum MATCH;
|
|
enum PASS;
|
|
|
|
class Tuple : public RootObject
|
|
{
|
|
public:
|
|
Objects objects;
|
|
|
|
int dyncast() { return DYNCAST_TUPLE; } // kludge for template.isType()
|
|
};
|
|
|
|
|
|
class TemplateDeclaration : public ScopeDsymbol
|
|
{
|
|
public:
|
|
TemplateParameters *parameters; // array of TemplateParameter's
|
|
|
|
TemplateParameters *origParameters; // originals for Ddoc
|
|
Expression *constraint;
|
|
|
|
// Hash table to look up TemplateInstance's of this TemplateDeclaration
|
|
Array<TemplateInstances> buckets;
|
|
size_t numinstances; // number of instances in the hash table
|
|
|
|
TemplateDeclaration *overnext; // next overloaded TemplateDeclaration
|
|
TemplateDeclaration *overroot; // first in overnext list
|
|
FuncDeclaration *funcroot; // first function in unified overload list
|
|
|
|
Dsymbol *onemember; // if !=NULL then one member of this template
|
|
|
|
int literal; // this template declaration is a literal
|
|
int ismixin; // template declaration is only to be used as a mixin
|
|
PROT protection;
|
|
|
|
struct Previous
|
|
{ Previous *prev;
|
|
Scope *sc;
|
|
Objects *dedargs;
|
|
};
|
|
Previous *previous; // threaded list of previous instantiation attempts on stack
|
|
|
|
TemplateDeclaration(Loc loc, Identifier *id, TemplateParameters *parameters,
|
|
Expression *constraint, Dsymbols *decldefs, int ismixin);
|
|
Dsymbol *syntaxCopy(Dsymbol *);
|
|
void semantic(Scope *sc);
|
|
bool overloadInsert(Dsymbol *s);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
bool hasStaticCtorOrDtor();
|
|
const char *kind();
|
|
char *toChars();
|
|
|
|
void emitComment(Scope *sc);
|
|
void toJson(JsonOut *json);
|
|
virtual void jsonProperties(JsonOut *json);
|
|
PROT prot();
|
|
// void toDocBuffer(OutBuffer *buf);
|
|
|
|
MATCH matchWithInstance(Scope *sc, TemplateInstance *ti, Objects *atypes, Expressions *fargs, int flag);
|
|
MATCH leastAsSpecialized(Scope *sc, TemplateDeclaration *td2, Expressions *fargs);
|
|
|
|
MATCH deduceFunctionTemplateMatch(FuncDeclaration *f, Loc loc, Scope *sc, Objects *tiargs, Type *tthis, Expressions *fargs, Objects *dedargs);
|
|
RootObject *declareParameter(Scope *sc, TemplateParameter *tp, RootObject *o);
|
|
FuncDeclaration *doHeaderInstantiation(Scope *sc, Objects *tdargs, Type *tthis, Expressions *fargs);
|
|
TemplateInstance *findExistingInstance(TemplateInstance *tithis, Expressions *fargs);
|
|
TemplateInstance *addInstance(TemplateInstance *ti);
|
|
void removeInstance(TemplateInstance *handle);
|
|
|
|
TemplateDeclaration *isTemplateDeclaration() { return this; }
|
|
|
|
TemplateTupleParameter *isVariadic();
|
|
bool isOverloadable();
|
|
|
|
void makeParamNamesVisibleInConstraint(Scope *paramscope, Expressions *fargs);
|
|
#if IN_LLVM
|
|
// LDC
|
|
std::string intrinsicName;
|
|
#endif
|
|
};
|
|
|
|
class TemplateParameter
|
|
{
|
|
public:
|
|
/* For type-parameter:
|
|
* template Foo(ident) // specType is set to NULL
|
|
* template Foo(ident : specType)
|
|
* For value-parameter:
|
|
* template Foo(valType ident) // specValue is set to NULL
|
|
* template Foo(valType ident : specValue)
|
|
* For alias-parameter:
|
|
* template Foo(alias ident)
|
|
* For this-parameter:
|
|
* template Foo(this ident)
|
|
*/
|
|
|
|
Loc loc;
|
|
Identifier *ident;
|
|
|
|
Declaration *sparam;
|
|
|
|
TemplateParameter(Loc loc, Identifier *ident);
|
|
|
|
virtual TemplateTypeParameter *isTemplateTypeParameter();
|
|
virtual TemplateValueParameter *isTemplateValueParameter();
|
|
virtual TemplateAliasParameter *isTemplateAliasParameter();
|
|
#if DMDV2
|
|
virtual TemplateThisParameter *isTemplateThisParameter();
|
|
#endif
|
|
virtual TemplateTupleParameter *isTemplateTupleParameter();
|
|
|
|
virtual TemplateParameter *syntaxCopy() = 0;
|
|
virtual void declareParameter(Scope *sc) = 0;
|
|
virtual void semantic(Scope *sc, TemplateParameters *parameters) = 0;
|
|
virtual void print(RootObject *oarg, RootObject *oded) = 0;
|
|
virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs) = 0;
|
|
virtual RootObject *specialization() = 0;
|
|
virtual RootObject *defaultArg(Loc loc, Scope *sc) = 0;
|
|
|
|
/* If TemplateParameter's match as far as overloading goes.
|
|
*/
|
|
virtual int overloadMatch(TemplateParameter *) = 0;
|
|
|
|
/* Match actual argument against parameter.
|
|
*/
|
|
virtual MATCH matchArg(Loc loc, Scope *sc, Objects *tiargs, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam);
|
|
virtual MATCH matchArg(Scope *sc, RootObject *oarg, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam) = 0;
|
|
|
|
/* Create dummy argument based on parameter.
|
|
*/
|
|
virtual void *dummyArg() = 0;
|
|
};
|
|
|
|
class TemplateTypeParameter : public TemplateParameter
|
|
{
|
|
public:
|
|
/* Syntax:
|
|
* ident : specType = defaultType
|
|
*/
|
|
Type *specType; // type parameter: if !=NULL, this is the type specialization
|
|
Type *defaultType;
|
|
|
|
static Type *tdummy;
|
|
|
|
TemplateTypeParameter(Loc loc, Identifier *ident, Type *specType, Type *defaultType);
|
|
|
|
TemplateTypeParameter *isTemplateTypeParameter();
|
|
TemplateParameter *syntaxCopy();
|
|
void declareParameter(Scope *sc);
|
|
void semantic(Scope *sc, TemplateParameters *parameters);
|
|
void print(RootObject *oarg, RootObject *oded);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
RootObject *specialization();
|
|
RootObject *defaultArg(Loc loc, Scope *sc);
|
|
int overloadMatch(TemplateParameter *);
|
|
MATCH matchArg(Scope *sc, RootObject *oarg, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam);
|
|
void *dummyArg();
|
|
};
|
|
|
|
#if DMDV2
|
|
class TemplateThisParameter : public TemplateTypeParameter
|
|
{
|
|
public:
|
|
/* Syntax:
|
|
* this ident : specType = defaultType
|
|
*/
|
|
|
|
TemplateThisParameter(Loc loc, Identifier *ident, Type *specType, Type *defaultType);
|
|
|
|
TemplateThisParameter *isTemplateThisParameter();
|
|
TemplateParameter *syntaxCopy();
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
};
|
|
#endif
|
|
|
|
class TemplateValueParameter : public TemplateParameter
|
|
{
|
|
public:
|
|
/* Syntax:
|
|
* valType ident : specValue = defaultValue
|
|
*/
|
|
|
|
Type *valType;
|
|
Expression *specValue;
|
|
Expression *defaultValue;
|
|
|
|
static AA *edummies;
|
|
|
|
TemplateValueParameter(Loc loc, Identifier *ident, Type *valType, Expression *specValue, Expression *defaultValue);
|
|
|
|
TemplateValueParameter *isTemplateValueParameter();
|
|
TemplateParameter *syntaxCopy();
|
|
void declareParameter(Scope *sc);
|
|
void semantic(Scope *sc, TemplateParameters *parameters);
|
|
void print(RootObject *oarg, RootObject *oded);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
RootObject *specialization();
|
|
RootObject *defaultArg(Loc loc, Scope *sc);
|
|
int overloadMatch(TemplateParameter *);
|
|
MATCH matchArg(Scope *sc, RootObject *oarg, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam);
|
|
void *dummyArg();
|
|
};
|
|
|
|
class TemplateAliasParameter : public TemplateParameter
|
|
{
|
|
public:
|
|
/* Syntax:
|
|
* specType ident : specAlias = defaultAlias
|
|
*/
|
|
|
|
Type *specType;
|
|
RootObject *specAlias;
|
|
RootObject *defaultAlias;
|
|
|
|
static Dsymbol *sdummy;
|
|
|
|
TemplateAliasParameter(Loc loc, Identifier *ident, Type *specType, RootObject *specAlias, RootObject *defaultAlias);
|
|
|
|
TemplateAliasParameter *isTemplateAliasParameter();
|
|
TemplateParameter *syntaxCopy();
|
|
void declareParameter(Scope *sc);
|
|
void semantic(Scope *sc, TemplateParameters *parameters);
|
|
void print(RootObject *oarg, RootObject *oded);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
RootObject *specialization();
|
|
RootObject *defaultArg(Loc loc, Scope *sc);
|
|
int overloadMatch(TemplateParameter *);
|
|
MATCH matchArg(Scope *sc, RootObject *oarg, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam);
|
|
void *dummyArg();
|
|
};
|
|
|
|
class TemplateTupleParameter : public TemplateParameter
|
|
{
|
|
public:
|
|
/* Syntax:
|
|
* ident ...
|
|
*/
|
|
|
|
TemplateTupleParameter(Loc loc, Identifier *ident);
|
|
|
|
TemplateTupleParameter *isTemplateTupleParameter();
|
|
TemplateParameter *syntaxCopy();
|
|
void declareParameter(Scope *sc);
|
|
void semantic(Scope *sc, TemplateParameters *parameters);
|
|
void print(RootObject *oarg, RootObject *oded);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
RootObject *specialization();
|
|
RootObject *defaultArg(Loc loc, Scope *sc);
|
|
int overloadMatch(TemplateParameter *);
|
|
MATCH matchArg(Loc loc, Scope *sc, Objects *tiargs, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam);
|
|
MATCH matchArg(Scope *sc, RootObject *oarg, size_t i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam);
|
|
void *dummyArg();
|
|
};
|
|
|
|
class TemplateInstance : public ScopeDsymbol
|
|
{
|
|
public:
|
|
/* Given:
|
|
* foo!(args) =>
|
|
* name = foo
|
|
* tiargs = args
|
|
*/
|
|
Identifier *name;
|
|
Objects *tiargs; // Array of Types/Expressions of template
|
|
// instance arguments [int*, char, 10*10]
|
|
|
|
Objects tdtypes; // Array of Types/Expressions corresponding
|
|
// to TemplateDeclaration.parameters
|
|
// [int, char, 100]
|
|
|
|
Dsymbol *tempdecl; // referenced by foo.bar.abc
|
|
TemplateInstance *inst; // refer to existing instance
|
|
TemplateInstance *tinst; // enclosing template instance
|
|
ScopeDsymbol *argsym; // argument symbol table
|
|
AliasDeclaration *aliasdecl; // !=NULL if instance is an alias for its
|
|
// sole member
|
|
WithScopeSymbol *withsym; // if a member of a with statement
|
|
int nest; // for recursion detection
|
|
bool semantictiargsdone; // has semanticTiargs() been done?
|
|
bool havetempdecl; // if used second constructor
|
|
bool speculative; // if only instantiated with errors gagged
|
|
Dsymbol *enclosing; // if referencing local symbols, this is the context
|
|
hash_t hash; // cached result of hashCode()
|
|
Expressions *fargs; // for function template, these are the function arguments
|
|
Module *instantiatingModule; // the top module that instantiated this instance
|
|
#ifdef IN_GCC
|
|
/* On some targets, it is necessary to know whether a symbol
|
|
will be emitted in the output or not before the symbol
|
|
is used. This can be different from getModule(). */
|
|
Module * objFileModule;
|
|
#endif
|
|
|
|
TemplateInstance(Loc loc, Identifier *temp_id);
|
|
TemplateInstance(Loc loc, TemplateDeclaration *tempdecl, Objects *tiargs);
|
|
static Objects *arraySyntaxCopy(Objects *objs);
|
|
Dsymbol *syntaxCopy(Dsymbol *);
|
|
void semantic(Scope *sc, Expressions *fargs);
|
|
void semantic(Scope *sc);
|
|
void semantic2(Scope *sc);
|
|
void semantic3(Scope *sc);
|
|
void inlineScan();
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
void toCBufferTiargs(OutBuffer *buf, HdrGenState *hgs);
|
|
Dsymbol *toAlias(); // resolve real symbol
|
|
const char *kind();
|
|
bool oneMember(Dsymbol **ps, Identifier *ident);
|
|
char *toChars();
|
|
const char *mangle(bool isv = false);
|
|
void printInstantiationTrace();
|
|
Identifier *getIdent();
|
|
int compare(RootObject *o);
|
|
hash_t hashCode();
|
|
|
|
#if IN_DMD
|
|
void toObjFile(int multiobj); // compile to .obj file
|
|
#endif
|
|
|
|
// Internal
|
|
bool findTemplateDeclaration(Scope *sc);
|
|
bool updateTemplateDeclaration(Scope *sc, Dsymbol *s);
|
|
static void semanticTiargs(Loc loc, Scope *sc, Objects *tiargs, int flags);
|
|
bool semanticTiargs(Scope *sc);
|
|
bool findBestMatch(Scope *sc, Expressions *fargs);
|
|
bool needsTypeInference(Scope *sc, int flag = 0);
|
|
bool hasNestedArgs(Objects *tiargs);
|
|
void declareParameters(Scope *sc);
|
|
Identifier *genIdent(Objects *args);
|
|
void expandMembers(Scope *sc);
|
|
void tryExpandMembers(Scope *sc);
|
|
void trySemantic3(Scope *sc2);
|
|
|
|
TemplateInstance *isTemplateInstance() { return this; }
|
|
AliasDeclaration *isAliasDeclaration();
|
|
|
|
#if IN_LLVM
|
|
Module* emittedInModule; // which module this template instance has been emitted in
|
|
|
|
void codegen(IRState*);
|
|
#endif
|
|
};
|
|
|
|
class TemplateMixin : public TemplateInstance
|
|
{
|
|
public:
|
|
TypeQualified *tqual;
|
|
|
|
TemplateMixin(Loc loc, Identifier *ident, TypeQualified *tqual, Objects *tiargs);
|
|
Dsymbol *syntaxCopy(Dsymbol *s);
|
|
void semantic(Scope *sc);
|
|
void semantic2(Scope *sc);
|
|
void semantic3(Scope *sc);
|
|
void inlineScan();
|
|
const char *kind();
|
|
bool oneMember(Dsymbol **ps, Identifier *ident);
|
|
int apply(Dsymbol_apply_ft_t fp, void *param);
|
|
bool hasPointers();
|
|
void setFieldOffset(AggregateDeclaration *ad, unsigned *poffset, bool isunion);
|
|
char *toChars();
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
void toJson(JsonOut *json);
|
|
|
|
#if IN_DMD
|
|
void toObjFile(int multiobj); // compile to .obj file
|
|
#endif
|
|
|
|
bool findTemplateDeclaration(Scope *sc);
|
|
|
|
TemplateMixin *isTemplateMixin() { return this; }
|
|
|
|
#if IN_LLVM
|
|
void codegen(IRState*);
|
|
#endif
|
|
};
|
|
|
|
Expression *isExpression(RootObject *o);
|
|
Dsymbol *isDsymbol(RootObject *o);
|
|
Type *isType(RootObject *o);
|
|
Tuple *isTuple(RootObject *o);
|
|
Parameter *isParameter(RootObject *o);
|
|
int arrayObjectIsError(Objects *args);
|
|
int isError(RootObject *o);
|
|
Type *getType(RootObject *o);
|
|
Dsymbol *getDsymbol(RootObject *o);
|
|
|
|
void ObjectToCBuffer(OutBuffer *buf, HdrGenState *hgs, RootObject *oarg);
|
|
RootObject *objectSyntaxCopy(RootObject *o);
|
|
|
|
#endif /* DMD_TEMPLATE_H */
|