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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/mtype.h
*/
#pragma once
#include "root/root.h"
#include "root/stringtable.h"
#include "root/rmem.h" // for d_size_t
#include "arraytypes.h"
#include "expression.h"
#include "visitor.h"
struct Scope;
class Identifier;
class Expression;
class StructDeclaration;
class ClassDeclaration;
class EnumDeclaration;
class TypeInfoDeclaration;
class Dsymbol;
class TemplateInstance;
class TemplateDeclaration;
enum LINK;
class TypeBasic;
class Parameter;
// Back end
#ifdef IN_GCC
typedef union tree_node type;
#else
typedef struct TYPE type;
#endif
void semanticTypeInfo(Scope *sc, Type *t);
MATCH deduceType(RootObject *o, Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes, unsigned *wm = NULL, size_t inferStart = 0);
StorageClass ModToStc(unsigned mod);
enum ENUMTY
{
Tarray, // slice array, aka T[]
Tsarray, // static array, aka T[dimension]
Taarray, // associative array, aka T[type]
Tpointer,
Treference,
Tfunction,
Tident,
Tclass,
Tstruct,
Tenum,
Tdelegate,
Tnone,
Tvoid,
Tint8,
Tuns8,
Tint16,
Tuns16,
Tint32,
Tuns32,
Tint64,
Tuns64,
Tfloat32,
Tfloat64,
Tfloat80,
Timaginary32,
Timaginary64,
Timaginary80,
Tcomplex32,
Tcomplex64,
Tcomplex80,
Tbool,
Tchar,
Twchar,
Tdchar,
Terror,
Tinstance,
Ttypeof,
Ttuple,
Tslice,
Treturn,
Tnull,
Tvector,
Tint128,
Tuns128,
TMAX
};
typedef unsigned char TY; // ENUMTY
extern int Tsize_t;
extern int Tptrdiff_t;
#define SIZE_INVALID (~(d_uns64)0) // error return from size() functions
/**
* type modifiers
* pick this order of numbers so switch statements work better
*/
enum MODFlags
{
MODconst = 1, // type is const
MODimmutable = 4, // type is immutable
MODshared = 2, // type is shared
MODwild = 8, // type is wild
MODwildconst = (MODwild | MODconst), // type is wild const
MODmutable = 0x10 // type is mutable (only used in wildcard matching)
};
typedef unsigned char MOD;
// These tables are for implicit conversion of binary ops;
// the indices are the type of operand one, followed by operand two.
extern unsigned char impcnvResult[TMAX][TMAX];
extern unsigned char impcnvType1[TMAX][TMAX];
extern unsigned char impcnvType2[TMAX][TMAX];
// If !=0, give warning on implicit conversion
extern unsigned char impcnvWarn[TMAX][TMAX];
class Type : public RootObject
{
public:
TY ty;
MOD mod; // modifiers MODxxxx
char *deco;
/* These are cached values that are lazily evaluated by constOf(), immutableOf(), etc.
* They should not be referenced by anybody but mtype.c.
* They can be NULL if not lazily evaluated yet.
* Note that there is no "shared immutable", because that is just immutable
* Naked == no MOD bits
*/
Type *cto; // MODconst ? naked version of this type : const version
Type *ito; // MODimmutable ? naked version of this type : immutable version
Type *sto; // MODshared ? naked version of this type : shared mutable version
Type *scto; // MODshared | MODconst ? naked version of this type : shared const version
Type *wto; // MODwild ? naked version of this type : wild version
Type *wcto; // MODwildconst ? naked version of this type : wild const version
Type *swto; // MODshared | MODwild ? naked version of this type : shared wild version
Type *swcto; // MODshared | MODwildconst ? naked version of this type : shared wild const version
Type *pto; // merged pointer to this type
Type *rto; // reference to this type
Type *arrayof; // array of this type
TypeInfoDeclaration *vtinfo; // TypeInfo object for this Type
type *ctype; // for back end
static Type *tvoid;
static Type *tint8;
static Type *tuns8;
static Type *tint16;
static Type *tuns16;
static Type *tint32;
static Type *tuns32;
static Type *tint64;
static Type *tuns64;
static Type *tint128;
static Type *tuns128;
static Type *tfloat32;
static Type *tfloat64;
static Type *tfloat80;
static Type *timaginary32;
static Type *timaginary64;
static Type *timaginary80;
static Type *tcomplex32;
static Type *tcomplex64;
static Type *tcomplex80;
static Type *tbool;
static Type *tchar;
static Type *twchar;
static Type *tdchar;
// Some special types
static Type *tshiftcnt;
static Type *tvoidptr; // void*
static Type *tstring; // immutable(char)[]
static Type *twstring; // immutable(wchar)[]
static Type *tdstring; // immutable(dchar)[]
static Type *tvalist; // va_list alias
static Type *terror; // for error recovery
static Type *tnull; // for null type
static Type *tsize_t; // matches size_t alias
static Type *tptrdiff_t; // matches ptrdiff_t alias
static Type *thash_t; // matches hash_t alias
static ClassDeclaration *dtypeinfo;
static ClassDeclaration *typeinfoclass;
static ClassDeclaration *typeinfointerface;
static ClassDeclaration *typeinfostruct;
static ClassDeclaration *typeinfopointer;
static ClassDeclaration *typeinfoarray;
static ClassDeclaration *typeinfostaticarray;
static ClassDeclaration *typeinfoassociativearray;
static ClassDeclaration *typeinfovector;
static ClassDeclaration *typeinfoenum;
static ClassDeclaration *typeinfofunction;
static ClassDeclaration *typeinfodelegate;
static ClassDeclaration *typeinfotypelist;
static ClassDeclaration *typeinfoconst;
static ClassDeclaration *typeinfoinvariant;
static ClassDeclaration *typeinfoshared;
static ClassDeclaration *typeinfowild;
static TemplateDeclaration *rtinfo;
static Type *basic[TMAX];
static unsigned char sizeTy[TMAX];
static StringTable stringtable;
Type(TY ty);
virtual const char *kind();
Type *copy();
virtual Type *syntaxCopy();
bool equals(RootObject *o);
bool equivalent(Type *t);
// kludge for template.isType()
int dyncast() const { return DYNCAST_TYPE; }
int covariant(Type *t, StorageClass *pstc = NULL, bool fix17349 = true);
const char *toChars();
char *toPrettyChars(bool QualifyTypes = false);
static void _init();
d_uns64 size();
virtual d_uns64 size(Loc loc);
virtual unsigned alignsize();
virtual Type *semantic(Loc loc, Scope *sc);
Type *trySemantic(Loc loc, Scope *sc);
Type *merge();
Type *merge2();
void modToBuffer(OutBuffer *buf);
char *modToChars();
/** For each active modifier (MODconst, MODimmutable, etc) call fp with a
void* for the work param and a string representation of the attribute. */
int modifiersApply(void *param, int (*fp)(void *, const char *));
virtual bool isintegral();
virtual bool isfloating(); // real, imaginary, or complex
virtual bool isreal();
virtual bool isimaginary();
virtual bool iscomplex();
virtual bool isscalar();
virtual bool isunsigned();
virtual bool isscope();
virtual bool isString();
virtual bool isAssignable();
virtual bool isBoolean();
virtual void checkDeprecated(Loc loc, Scope *sc);
bool isConst() const { return (mod & MODconst) != 0; }
bool isImmutable() const { return (mod & MODimmutable) != 0; }
bool isMutable() const { return (mod & (MODconst | MODimmutable | MODwild)) == 0; }
bool isShared() const { return (mod & MODshared) != 0; }
bool isSharedConst() const { return (mod & (MODshared | MODconst)) == (MODshared | MODconst); }
bool isWild() const { return (mod & MODwild) != 0; }
bool isWildConst() const { return (mod & MODwildconst) == MODwildconst; }
bool isSharedWild() const { return (mod & (MODshared | MODwild)) == (MODshared | MODwild); }
bool isNaked() const { return mod == 0; }
Type *nullAttributes();
Type *constOf();
Type *immutableOf();
Type *mutableOf();
Type *sharedOf();
Type *sharedConstOf();
Type *unSharedOf();
Type *wildOf();
Type *wildConstOf();
Type *sharedWildOf();
Type *sharedWildConstOf();
void fixTo(Type *t);
void check();
Type *addSTC(StorageClass stc);
Type *castMod(MOD mod);
Type *addMod(MOD mod);
virtual Type *addStorageClass(StorageClass stc);
Type *pointerTo();
Type *referenceTo();
Type *arrayOf();
Type *sarrayOf(dinteger_t dim);
Type *aliasthisOf();
bool checkAliasThisRec();
virtual Type *makeConst();
virtual Type *makeImmutable();
virtual Type *makeShared();
virtual Type *makeSharedConst();
virtual Type *makeWild();
virtual Type *makeWildConst();
virtual Type *makeSharedWild();
virtual Type *makeSharedWildConst();
virtual Type *makeMutable();
virtual Dsymbol *toDsymbol(Scope *sc);
virtual Type *toBasetype();
virtual bool isBaseOf(Type *t, int *poffset);
virtual MATCH implicitConvTo(Type *to);
virtual MATCH constConv(Type *to);
virtual unsigned char deduceWild(Type *t, bool isRef);
virtual Type *substWildTo(unsigned mod);
Type *unqualify(unsigned m);
virtual Type *toHeadMutable();
virtual ClassDeclaration *isClassHandle();
virtual Expression *getProperty(Loc loc, Identifier *ident, int flag);
virtual Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
virtual structalign_t alignment();
Expression *noMember(Scope *sc, Expression *e, Identifier *ident, int flag);
virtual Expression *defaultInit(Loc loc = Loc());
virtual Expression *defaultInitLiteral(Loc loc);
virtual bool isZeroInit(Loc loc = Loc()); // if initializer is 0
Identifier *getTypeInfoIdent();
virtual void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
void resolveExp(Expression *e, Type **pt, Expression **pe, Dsymbol **ps);
virtual int hasWild() const;
virtual bool hasPointers();
virtual bool hasVoidInitPointers();
virtual Type *nextOf();
Type *baseElemOf();
uinteger_t sizemask();
unsigned numberOfElems(const Loc &loc);
virtual bool needsDestruction();
virtual bool needsNested();
void checkComplexTransition(Loc loc);
TypeFunction *toTypeFunction();
static void error(Loc loc, const char *format, ...);
static void warning(Loc loc, const char *format, ...);
// For eliminating dynamic_cast
virtual TypeBasic *isTypeBasic();
virtual void accept(Visitor *v) { v->visit(this); }
};
class TypeError : public Type
{
public:
TypeError();
Type *syntaxCopy();
d_uns64 size(Loc loc);
Expression *getProperty(Loc loc, Identifier *ident, int flag);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
Expression *defaultInit(Loc loc);
Expression *defaultInitLiteral(Loc loc);
void accept(Visitor *v) { v->visit(this); }
};
class TypeNext : public Type
{
public:
Type *next;
TypeNext(TY ty, Type *next);
void checkDeprecated(Loc loc, Scope *sc);
int hasWild() const;
Type *nextOf();
Type *makeConst();
Type *makeImmutable();
Type *makeShared();
Type *makeSharedConst();
Type *makeWild();
Type *makeWildConst();
Type *makeSharedWild();
Type *makeSharedWildConst();
Type *makeMutable();
MATCH constConv(Type *to);
unsigned char deduceWild(Type *t, bool isRef);
void transitive();
void accept(Visitor *v) { v->visit(this); }
};
class TypeBasic : public Type
{
public:
const char *dstring;
unsigned flags;
TypeBasic(TY ty);
const char *kind();
Type *syntaxCopy();
d_uns64 size(Loc loc) /*const*/;
unsigned alignsize();
Expression *getProperty(Loc loc, Identifier *ident, int flag);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
bool isintegral();
bool isfloating() /*const*/;
bool isreal() /*const*/;
bool isimaginary() /*const*/;
bool iscomplex() /*const*/;
bool isscalar() /*const*/;
bool isunsigned() /*const*/;
MATCH implicitConvTo(Type *to);
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
// For eliminating dynamic_cast
TypeBasic *isTypeBasic();
void accept(Visitor *v) { v->visit(this); }
};
class TypeVector : public Type
{
public:
Type *basetype;
TypeVector(Type *basetype);
static TypeVector *create(Loc loc, Type *basetype);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
d_uns64 size(Loc loc);
unsigned alignsize();
Expression *getProperty(Loc loc, Identifier *ident, int flag);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
bool isintegral();
bool isfloating();
bool isscalar();
bool isunsigned();
bool isBoolean() /*const*/;
MATCH implicitConvTo(Type *to);
Expression *defaultInit(Loc loc);
Expression *defaultInitLiteral(Loc loc);
TypeBasic *elementType();
bool isZeroInit(Loc loc);
void accept(Visitor *v) { v->visit(this); }
};
class TypeArray : public TypeNext
{
public:
TypeArray(TY ty, Type *next);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
void accept(Visitor *v) { v->visit(this); }
};
// Static array, one with a fixed dimension
class TypeSArray : public TypeArray
{
public:
Expression *dim;
TypeSArray(Type *t, Expression *dim);
const char *kind();
Type *syntaxCopy();
d_uns64 size(Loc loc);
unsigned alignsize();
Type *semantic(Loc loc, Scope *sc);
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
bool isString();
bool isZeroInit(Loc loc);
structalign_t alignment();
MATCH constConv(Type *to);
MATCH implicitConvTo(Type *to);
Expression *defaultInit(Loc loc);
Expression *defaultInitLiteral(Loc loc);
bool hasPointers();
bool needsDestruction();
bool needsNested();
void accept(Visitor *v) { v->visit(this); }
};
// Dynamic array, no dimension
class TypeDArray : public TypeArray
{
public:
TypeDArray(Type *t);
const char *kind();
Type *syntaxCopy();
d_uns64 size(Loc loc) /*const*/;
unsigned alignsize() /*const*/;
Type *semantic(Loc loc, Scope *sc);
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
bool isString();
bool isZeroInit(Loc loc) /*const*/;
bool isBoolean() /*const*/;
MATCH implicitConvTo(Type *to);
Expression *defaultInit(Loc loc);
bool hasPointers() /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
class TypeAArray : public TypeArray
{
public:
Type *index; // key type
Loc loc;
Scope *sc;
TypeAArray(Type *t, Type *index);
static TypeAArray *create(Type *t, Type *index);
const char *kind();
Type *syntaxCopy();
d_uns64 size(Loc loc);
Type *semantic(Loc loc, Scope *sc);
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
bool isBoolean() /*const*/;
bool hasPointers() /*const*/;
MATCH implicitConvTo(Type *to);
MATCH constConv(Type *to);
void accept(Visitor *v) { v->visit(this); }
};
class TypePointer : public TypeNext
{
public:
TypePointer(Type *t);
static TypePointer *create(Type *t);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
d_uns64 size(Loc loc) /*const*/;
MATCH implicitConvTo(Type *to);
MATCH constConv(Type *to);
bool isscalar() /*const*/;
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
bool hasPointers() /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
class TypeReference : public TypeNext
{
public:
TypeReference(Type *t);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
d_uns64 size(Loc loc) /*const*/;
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
enum RET
{
RETregs = 1, // returned in registers
RETstack = 2 // returned on stack
};
enum TRUST
{
TRUSTdefault = 0,
TRUSTsystem = 1, // @system (same as TRUSTdefault)
TRUSTtrusted = 2, // @trusted
TRUSTsafe = 3 // @safe
};
// in hdrgen.c
void trustToBuffer(OutBuffer *buf, TRUST trust);
const char *trustToChars(TRUST trust);
enum TRUSTformat
{
TRUSTformatDefault, // do not emit @system when trust == TRUSTdefault
TRUSTformatSystem // emit @system when trust == TRUSTdefault
};
enum PURE
{
PUREimpure = 0, // not pure at all
PUREfwdref = 1, // it's pure, but not known which level yet
PUREweak = 2, // no mutable globals are read or written
PUREconst = 3, // parameters are values or const
PUREstrong = 4 // parameters are values or immutable
};
class TypeFunction : public TypeNext
{
public:
// .next is the return type
Parameters *parameters; // function parameters
int varargs; // 1: T t, ...) style for variable number of arguments
// 2: T t ...) style for variable number of arguments
bool isnothrow; // true: nothrow
bool isnogc; // true: is @nogc
bool isproperty; // can be called without parentheses
bool isref; // true: returns a reference
bool isreturn; // true: 'this' is returned by ref
bool isscope; // true: 'this' is scope
bool isscopeinferred; // true: 'this' is scope from inference
LINK linkage; // calling convention
TRUST trust; // level of trust
PURE purity; // PURExxxx
unsigned char iswild; // bit0: inout on params, bit1: inout on qualifier
Expressions *fargs; // function arguments
int inuse;
TypeFunction(Parameters *parameters, Type *treturn, int varargs, LINK linkage, StorageClass stc = 0);
static TypeFunction *create(Parameters *parameters, Type *treturn, int varargs, LINK linkage, StorageClass stc = 0);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
void purityLevel();
bool hasLazyParameters();
bool parameterEscapes(Parameter *p);
StorageClass parameterStorageClass(Parameter *p);
Type *addStorageClass(StorageClass stc);
/** For each active attribute (ref/const/nogc/etc) call fp with a void* for the
work param and a string representation of the attribute. */
int attributesApply(void *param, int (*fp)(void *, const char *), TRUSTformat trustFormat = TRUSTformatDefault);
Type *substWildTo(unsigned mod);
MATCH callMatch(Type *tthis, Expressions *toargs, int flag = 0);
bool checkRetType(Loc loc);
Expression *defaultInit(Loc loc) /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
class TypeDelegate : public TypeNext
{
public:
// .next is a TypeFunction
TypeDelegate(Type *t);
static TypeDelegate *create(Type *t);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
Type *addStorageClass(StorageClass stc);
d_uns64 size(Loc loc) /*const*/;
unsigned alignsize() /*const*/;
MATCH implicitConvTo(Type *to);
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
bool isBoolean() /*const*/;
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
bool hasPointers() /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
class TypeQualified : public Type
{
public:
Loc loc;
// array of Identifier and TypeInstance,
// representing ident.ident!tiargs.ident. ... etc.
Objects idents;
TypeQualified(TY ty, Loc loc);
void syntaxCopyHelper(TypeQualified *t);
void addIdent(Identifier *ident);
void addInst(TemplateInstance *inst);
void addIndex(RootObject *expr);
d_uns64 size(Loc loc);
void resolveTupleIndex(Loc loc, Scope *sc, Dsymbol *s,
Expression **pe, Type **pt, Dsymbol **ps, RootObject *oindex);
void resolveHelper(Loc loc, Scope *sc, Dsymbol *s, Dsymbol *scopesym,
Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
void accept(Visitor *v) { v->visit(this); }
};
class TypeIdentifier : public TypeQualified
{
public:
Identifier *ident;
Dsymbol *originalSymbol; // The symbol representing this identifier, before alias resolution
TypeIdentifier(Loc loc, Identifier *ident);
const char *kind();
Type *syntaxCopy();
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Dsymbol *toDsymbol(Scope *sc);
Type *semantic(Loc loc, Scope *sc);
void accept(Visitor *v) { v->visit(this); }
};
/* Similar to TypeIdentifier, but with a TemplateInstance as the root
*/
class TypeInstance : public TypeQualified
{
public:
TemplateInstance *tempinst;
TypeInstance(Loc loc, TemplateInstance *tempinst);
const char *kind();
Type *syntaxCopy();
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Type *semantic(Loc loc, Scope *sc);
Dsymbol *toDsymbol(Scope *sc);
void accept(Visitor *v) { v->visit(this); }
};
class TypeTypeof : public TypeQualified
{
public:
Expression *exp;
int inuse;
TypeTypeof(Loc loc, Expression *exp);
const char *kind();
Type *syntaxCopy();
Dsymbol *toDsymbol(Scope *sc);
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Type *semantic(Loc loc, Scope *sc);
d_uns64 size(Loc loc);
void accept(Visitor *v) { v->visit(this); }
};
class TypeReturn : public TypeQualified
{
public:
TypeReturn(Loc loc);
const char *kind();
Type *syntaxCopy();
Dsymbol *toDsymbol(Scope *sc);
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
Type *semantic(Loc loc, Scope *sc);
void accept(Visitor *v) { v->visit(this); }
};
// Whether alias this dependency is recursive or not.
enum AliasThisRec
{
RECno = 0, // no alias this recursion
RECyes = 1, // alias this has recursive dependency
RECfwdref = 2, // not yet known
RECtypeMask = 3,// mask to read no/yes/fwdref
RECtracing = 0x4, // mark in progress of implicitConvTo/deduceWild
RECtracingDT = 0x8 // mark in progress of deduceType
};
class TypeStruct : public Type
{
public:
StructDeclaration *sym;
AliasThisRec att;
CPPMANGLE cppmangle;
TypeStruct(StructDeclaration *sym);
static TypeStruct *create(StructDeclaration *sym);
const char *kind();
d_uns64 size(Loc loc);
unsigned alignsize();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
Dsymbol *toDsymbol(Scope *sc);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
structalign_t alignment();
Expression *defaultInit(Loc loc);
Expression *defaultInitLiteral(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
bool isAssignable();
bool isBoolean() /*const*/;
bool needsDestruction() /*const*/;
bool needsNested();
bool hasPointers();
bool hasVoidInitPointers();
MATCH implicitConvTo(Type *to);
MATCH constConv(Type *to);
unsigned char deduceWild(Type *t, bool isRef);
Type *toHeadMutable();
void accept(Visitor *v) { v->visit(this); }
};
class TypeEnum : public Type
{
public:
EnumDeclaration *sym;
TypeEnum(EnumDeclaration *sym);
const char *kind();
Type *syntaxCopy();
d_uns64 size(Loc loc);
unsigned alignsize();
Type *semantic(Loc loc, Scope *sc);
Dsymbol *toDsymbol(Scope *sc);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
Expression *getProperty(Loc loc, Identifier *ident, int flag);
bool isintegral();
bool isfloating();
bool isreal();
bool isimaginary();
bool iscomplex();
bool isscalar();
bool isunsigned();
bool isBoolean();
bool isString();
bool isAssignable();
bool needsDestruction();
bool needsNested();
MATCH implicitConvTo(Type *to);
MATCH constConv(Type *to);
Type *toBasetype();
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc);
bool hasPointers();
bool hasVoidInitPointers();
Type *nextOf();
void accept(Visitor *v) { v->visit(this); }
};
class TypeClass : public Type
{
public:
ClassDeclaration *sym;
AliasThisRec att;
CPPMANGLE cppmangle;
TypeClass(ClassDeclaration *sym);
const char *kind();
d_uns64 size(Loc loc) /*const*/;
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
Dsymbol *toDsymbol(Scope *sc);
Expression *dotExp(Scope *sc, Expression *e, Identifier *ident, int flag);
ClassDeclaration *isClassHandle();
bool isBaseOf(Type *t, int *poffset);
MATCH implicitConvTo(Type *to);
MATCH constConv(Type *to);
unsigned char deduceWild(Type *t, bool isRef);
Type *toHeadMutable();
Expression *defaultInit(Loc loc);
bool isZeroInit(Loc loc) /*const*/;
bool isscope() /*const*/;
bool isBoolean() /*const*/;
bool hasPointers() /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
class TypeTuple : public Type
{
public:
Parameters *arguments; // types making up the tuple
TypeTuple(Parameters *arguments);
TypeTuple(Expressions *exps);
static TypeTuple *create(Parameters *arguments);
TypeTuple();
TypeTuple(Type *t1);
TypeTuple(Type *t1, Type *t2);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
bool equals(RootObject *o);
Expression *getProperty(Loc loc, Identifier *ident, int flag);
Expression *defaultInit(Loc loc);
void accept(Visitor *v) { v->visit(this); }
};
class TypeSlice : public TypeNext
{
public:
Expression *lwr;
Expression *upr;
TypeSlice(Type *next, Expression *lwr, Expression *upr);
const char *kind();
Type *syntaxCopy();
Type *semantic(Loc loc, Scope *sc);
void resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol **ps, bool intypeid = false);
void accept(Visitor *v) { v->visit(this); }
};
class TypeNull : public Type
{
public:
TypeNull();
const char *kind();
Type *syntaxCopy();
MATCH implicitConvTo(Type *to);
bool isBoolean() /*const*/;
d_uns64 size(Loc loc) /*const*/;
Expression *defaultInit(Loc loc) /*const*/;
void accept(Visitor *v) { v->visit(this); }
};
/**************************************************************/
//enum InOut { None, In, Out, InOut, Lazy };
class Parameter : public RootObject
{
public:
//enum InOut inout;
StorageClass storageClass;
Type *type;
Identifier *ident;
Expression *defaultArg;
Parameter(StorageClass storageClass, Type *type, Identifier *ident, Expression *defaultArg);
static Parameter *create(StorageClass storageClass, Type *type, Identifier *ident, Expression *defaultArg);
Parameter *syntaxCopy();
Type *isLazyArray();
// kludge for template.isType()
int dyncast() const { return DYNCAST_PARAMETER; }
virtual void accept(Visitor *v) { v->visit(this); }
static Parameters *arraySyntaxCopy(Parameters *parameters);
static size_t dim(Parameters *parameters);
static Parameter *getNth(Parameters *parameters, d_size_t nth, d_size_t *pn = NULL);
const char *toChars();
bool isCovariant(bool returnByRef, const Parameter *p) const;
static bool isCovariantScope(bool returnByRef, StorageClass from, StorageClass to);
};
bool arrayTypeCompatible(Loc loc, Type *t1, Type *t2);
bool arrayTypeCompatibleWithoutCasting(Type *t1, Type *t2);
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