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expression.h
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expression.h
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// Compiler implementation of the D programming language
// Copyright (c) 1999-2012 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_EXPRESSION_H
#define DMD_EXPRESSION_H
#include "mars.h"
#include "identifier.h"
#include "lexer.h"
#include "arraytypes.h"
#include "intrange.h"
class Type;
class TypeVector;
struct Scope;
class TupleDeclaration;
class VarDeclaration;
class FuncDeclaration;
class FuncLiteralDeclaration;
class Declaration;
class CtorDeclaration;
class NewDeclaration;
class Dsymbol;
class Import;
class Module;
class ScopeDsymbol;
struct InlineCostState;
struct InlineDoState;
struct InlineScanState;
class Expression;
class Declaration;
class AggregateDeclaration;
class StructDeclaration;
class TemplateInstance;
class TemplateDeclaration;
class ClassDeclaration;
struct HdrGenState;
class BinExp;
struct InterState;
struct Symbol; // back end symbol
class OverloadSet;
class Initializer;
class StringExp;
class ArrayExp;
class SliceExp;
enum TOK;
// Back end
struct IRState;
struct dt_t;
#ifdef IN_GCC
typedef union tree_node elem;
#else
struct elem;
#endif
void initPrecedence();
typedef int (*apply_fp_t)(Expression *, void *);
Expression *resolveProperties(Scope *sc, Expression *e);
Expression *resolvePropertiesOnly(Scope *sc, Expression *e1);
void accessCheck(Loc loc, Scope *sc, Expression *e, Declaration *d);
Expression *build_overload(Loc loc, Scope *sc, Expression *ethis, Expression *earg, Dsymbol *d);
Dsymbol *search_function(ScopeDsymbol *ad, Identifier *funcid);
void argExpTypesToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs);
void argsToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs);
void expandTuples(Expressions *exps);
TupleDeclaration *isAliasThisTuple(Expression *e);
int expandAliasThisTuples(Expressions *exps, size_t starti = 0);
FuncDeclaration *hasThis(Scope *sc);
Expression *fromConstInitializer(int result, Expression *e);
int arrayExpressionCanThrow(Expressions *exps, bool mustNotThrow);
TemplateDeclaration *getFuncTemplateDecl(Dsymbol *s);
Expression *valueNoDtor(Expression *e);
int modifyFieldVar(Loc loc, Scope *sc, VarDeclaration *var, Expression *e1);
Expression *resolveAliasThis(Scope *sc, Expression *e);
Expression *callCpCtor(Scope *sc, Expression *e);
Expression *resolveOpDollar(Scope *sc, ArrayExp *ae);
Expression *resolveOpDollar(Scope *sc, SliceExp *se);
Expressions *arrayExpressionSemantic(Expressions *exps, Scope *sc);
AggregateDeclaration *isAggregate(Type *t);
/* Run CTFE on the expression, but allow the expression to be a TypeExp
* or a tuple containing a TypeExp. (This is required by pragma(msg)).
*/
Expression *ctfeInterpretForPragmaMsg(Expression *e);
/* Interpreter: what form of return value expression is required?
*/
enum CtfeGoal
{ ctfeNeedRvalue, // Must return an Rvalue
ctfeNeedLvalue, // Must return an Lvalue
ctfeNeedAnyValue, // Can return either an Rvalue or an Lvalue
ctfeNeedLvalueRef,// Must return a reference to an Lvalue (for ref types)
ctfeNeedNothing // The return value is not required
};
#define WANTflags 1
#define WANTvalue 2
// Same as WANTvalue, but also expand variables as far as possible
#define WANTexpand 8
class Expression : public RootObject
{
public:
Loc loc; // file location
TOK op; // handy to minimize use of dynamic_cast
Type *type; // !=NULL means that semantic() has been run
unsigned char size; // # of bytes in Expression so we can copy() it
unsigned char parens; // if this is a parenthesized expression
Expression(Loc loc, TOK op, int size);
static void init();
Expression *copy();
virtual Expression *syntaxCopy();
virtual int apply(apply_fp_t fp, void *param);
virtual Expression *semantic(Scope *sc);
Expression *trySemantic(Scope *sc);
int dyncast() { return DYNCAST_EXPRESSION; } // kludge for template.isExpression()
void print();
char *toChars();
void error(const char *format, ...);
void warning(const char *format, ...);
void deprecation(const char *format, ...);
virtual int rvalue(bool allowVoid = false);
static Expression *combine(Expression *e1, Expression *e2);
static Expressions *arraySyntaxCopy(Expressions *exps);
virtual dinteger_t toInteger();
virtual uinteger_t toUInteger();
virtual real_t toReal();
virtual real_t toImaginary();
virtual complex_t toComplex();
virtual StringExp *toString();
virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
virtual void toMangleBuffer(OutBuffer *buf);
virtual int isLvalue();
virtual Expression *toLvalue(Scope *sc, Expression *e);
virtual Expression *modifiableLvalue(Scope *sc, Expression *e);
virtual Expression *implicitCastTo(Scope *sc, Type *t);
virtual MATCH implicitConvTo(Type *t);
virtual IntRange getIntRange();
virtual Expression *castTo(Scope *sc, Type *t);
virtual Expression *inferType(Type *t, int flag = 0, Scope *sc = NULL, TemplateParameters *tparams = NULL);
virtual void checkEscape();
virtual void checkEscapeRef();
virtual Expression *resolveLoc(Loc loc, Scope *sc);
void checkScalar();
void checkNoBool();
Expression *checkIntegral();
Expression *checkArithmetic();
void checkDeprecated(Scope *sc, Dsymbol *s);
void checkPurity(Scope *sc, FuncDeclaration *f);
void checkPurity(Scope *sc, VarDeclaration *v);
void checkSafety(Scope *sc, FuncDeclaration *f);
bool checkPostblit(Scope *sc, Type *t);
virtual int checkModifiable(Scope *sc, int flag = 0);
virtual Expression *checkToBoolean(Scope *sc);
virtual Expression *addDtorHook(Scope *sc);
Expression *checkToPointer();
Expression *addressOf(Scope *sc);
Expression *deref();
Expression *integralPromotions(Scope *sc);
Expression *toDelegate(Scope *sc, Type *t);
virtual Expression *optimize(int result, bool keepLvalue = false);
// Entry point for CTFE.
// A compile-time result is required. Give an error if not possible
Expression *ctfeInterpret();
// Implementation of CTFE for this expression
virtual Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
virtual int isConst();
virtual int isBool(int result);
bool hasSideEffect();
void discardValue();
void useValue();
bool canThrow(bool mustNotThrow);
virtual int inlineCost3(InlineCostState *ics);
virtual Expression *doInline(InlineDoState *ids);
virtual Expression *inlineScan(InlineScanState *iss);
Expression *inlineCopy(Scope *sc);
// For operator overloading
virtual int isCommutative();
virtual Identifier *opId();
virtual Identifier *opId_r();
// For array ops
virtual void buildArrayIdent(OutBuffer *buf, Expressions *arguments);
virtual Expression *buildArrayLoop(Parameters *fparams);
int isArrayOperand();
// Back end
virtual elem *toElem(IRState *irs);
elem *toElemDtor(IRState *irs);
virtual dt_t **toDt(dt_t **pdt);
};
class IntegerExp : public Expression
{
public:
dinteger_t value;
IntegerExp(Loc loc, dinteger_t value, Type *type);
IntegerExp(dinteger_t value);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
char *toChars();
IntRange getIntRange();
dinteger_t toInteger();
real_t toReal();
real_t toImaginary();
complex_t toComplex();
int isConst();
int isBool(int result);
MATCH implicitConvTo(Type *t);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
Expression *toLvalue(Scope *sc, Expression *e);
elem *toElem(IRState *irs);
dt_t **toDt(dt_t **pdt);
};
class ErrorExp : public Expression
{
public:
ErrorExp();
Expression *implicitCastTo(Scope *sc, Type *t);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
Expression *toLvalue(Scope *sc, Expression *e);
};
class RealExp : public Expression
{
public:
real_t value;
RealExp(Loc loc, real_t value, Type *type);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
char *toChars();
dinteger_t toInteger();
uinteger_t toUInteger();
real_t toReal();
real_t toImaginary();
complex_t toComplex();
Expression *castTo(Scope *sc, Type *t);
int isConst();
int isBool(int result);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
elem *toElem(IRState *irs);
dt_t **toDt(dt_t **pdt);
};
class ComplexExp : public Expression
{
public:
complex_t value;
ComplexExp(Loc loc, complex_t value, Type *type);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
char *toChars();
dinteger_t toInteger();
uinteger_t toUInteger();
real_t toReal();
real_t toImaginary();
complex_t toComplex();
Expression *castTo(Scope *sc, Type *t);
int isConst();
int isBool(int result);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
elem *toElem(IRState *irs);
dt_t **toDt(dt_t **pdt);
};
class IdentifierExp : public Expression
{
public:
Identifier *ident;
Declaration *var;
IdentifierExp(Loc loc, Identifier *ident);
static IdentifierExp *create(Loc loc, Identifier *ident);
Expression *semantic(Scope *sc);
char *toChars();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
};
class DollarExp : public IdentifierExp
{
public:
DollarExp(Loc loc);
};
class DsymbolExp : public Expression
{
public:
Dsymbol *s;
bool hasOverloads;
DsymbolExp(Loc loc, Dsymbol *s, bool hasOverloads = false);
Expression *semantic(Scope *sc);
char *toChars();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
};
class ThisExp : public Expression
{
public:
Declaration *var;
ThisExp(Loc loc);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
int isBool(int result);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
Expression *modifiableLvalue(Scope *sc, Expression *e);
int inlineCost3(InlineCostState *ics);
Expression *doInline(InlineDoState *ids);
//Expression *inlineScan(InlineScanState *iss);
elem *toElem(IRState *irs);
};
class SuperExp : public ThisExp
{
public:
SuperExp(Loc loc);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
Expression *doInline(InlineDoState *ids);
//Expression *inlineScan(InlineScanState *iss);
};
class NullExp : public Expression
{
public:
unsigned char committed; // !=0 if type is committed
NullExp(Loc loc, Type *t = NULL);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
int isBool(int result);
int isConst();
StringExp *toString();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
elem *toElem(IRState *irs);
dt_t **toDt(dt_t **pdt);
};
class StringExp : public Expression
{
public:
void *string; // char, wchar, or dchar data
size_t len; // number of chars, wchars, or dchars
unsigned char sz; // 1: char, 2: wchar, 4: dchar
unsigned char committed; // !=0 if type is committed
utf8_t postfix; // 'c', 'w', 'd'
bool ownedByCtfe; // true = created in CTFE
StringExp(Loc loc, char *s);
StringExp(Loc loc, void *s, size_t len);
StringExp(Loc loc, void *s, size_t len, utf8_t postfix);
static StringExp *create(Loc loc, char *s);
//Expression *syntaxCopy();
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
size_t length();
StringExp *toString();
StringExp *toUTF8(Scope *sc);
Expression *implicitCastTo(Scope *sc, Type *t);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
int compare(RootObject *obj);
int isBool(int result);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
Expression *modifiableLvalue(Scope *sc, Expression *e);
unsigned charAt(uinteger_t i);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
elem *toElem(IRState *irs);
dt_t **toDt(dt_t **pdt);
};
// Tuple
class TupleExp : public Expression
{
public:
Expression *e0; // side-effect part
/* Tuple-field access may need to take out its side effect part.
* For example:
* foo().tupleof
* is rewritten as:
* (ref __tup = foo(); tuple(__tup.field0, __tup.field1, ...))
* The declaration of temporary variable __tup will be stored in TupleExp::e0.
*/
Expressions *exps;
TupleExp(Loc loc, Expression *e0, Expressions *exps);
TupleExp(Loc loc, Expressions *exps);
TupleExp(Loc loc, TupleDeclaration *tup);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void checkEscape();
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *castTo(Scope *sc, Type *t);
elem *toElem(IRState *irs);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
};
class ArrayLiteralExp : public Expression
{
public:
Expressions *elements;
bool ownedByCtfe; // true = created in CTFE
ArrayLiteralExp(Loc loc, Expressions *elements);
ArrayLiteralExp(Loc loc, Expression *e);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
int isBool(int result);
elem *toElem(IRState *irs);
StringExp *toString();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
Expression *inferType(Type *t, int flag = 0, Scope *sc = NULL, TemplateParameters *tparams = NULL);
dt_t **toDt(dt_t **pdt);
void buildArrayIdent(OutBuffer *buf, Expressions *arguments);
Expression *buildArrayLoop(Parameters *fparams);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
};
class AssocArrayLiteralExp : public Expression
{
public:
Expressions *keys;
Expressions *values;
bool ownedByCtfe; // true = created in CTFE
AssocArrayLiteralExp(Loc loc, Expressions *keys, Expressions *values);
bool equals(RootObject *o);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
int isBool(int result);
elem *toElem(IRState *irs);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
Expression *inferType(Type *t, int flag = 0, Scope *sc = NULL, TemplateParameters *tparams = NULL);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
};
// scrubReturnValue is running
#define stageScrub 0x1
// hasNonConstPointers is running
#define stageSearchPointers 0x2
// optimize is running
#define stageOptimize 0x4
// apply is running
#define stageApply 0x8
//inlineScan is running
#define stageInlineScan 0x10
// toCBuffer is running
#define stageToCBuffer 0x20
class StructLiteralExp : public Expression
{
public:
StructDeclaration *sd; // which aggregate this is for
Expressions *elements; // parallels sd->fields[] with
// NULL entries for fields to skip
Type *stype; // final type of result (can be different from sd's type)
Symbol *sinit; // if this is a defaultInitLiteral, this symbol contains the default initializer
Symbol *sym; // back end symbol to initialize with literal
size_t soffset; // offset from start of s
int fillHoles; // fill alignment 'holes' with zero
bool ownedByCtfe; // true = created in CTFE
StructLiteralExp *origin; // pointer to the origin instance of the expression.
// once a new expression is created, origin is set to 'this'.
// anytime when an expression copy is created, 'origin' pointer is set to
// 'origin' pointer value of the original expression.
StructLiteralExp *inlinecopy; // those fields need to prevent a infinite recursion when one field of struct initialized with 'this' pointer.
int stageflags; // anytime when recursive function is calling, 'stageflags' marks with bit flag of
// current stage and unmarks before return from this function.
// 'inlinecopy' uses similar 'stageflags' and from multiple evaluation 'doInline'
// (with infinite recursion) of this expression.
StructLiteralExp(Loc loc, StructDeclaration *sd, Expressions *elements, Type *stype = NULL);
static StructLiteralExp *create(Loc loc, StructDeclaration *sd, void *elements, Type *stype = NULL);
bool equals(RootObject *o);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
Expression *getField(Type *type, unsigned offset);
int getFieldIndex(Type *type, unsigned offset);
elem *toElem(IRState *irs);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void toMangleBuffer(OutBuffer *buf);
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *addDtorHook(Scope *sc);
dt_t **toDt(dt_t **pdt);
Symbol *toSymbol();
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
int inlineCost3(InlineCostState *ics);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
};
class DotIdExp;
DotIdExp *typeDotIdExp(Loc loc, Type *type, Identifier *ident);
class TypeExp : public Expression
{
public:
TypeExp(Loc loc, Type *type);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
int rvalue(bool allowVoid = false);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
Expression *optimize(int result, bool keepLvalue = false);
elem *toElem(IRState *irs);
};
class ScopeExp : public Expression
{
public:
ScopeDsymbol *sds;
ScopeExp(Loc loc, ScopeDsymbol *sds);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
elem *toElem(IRState *irs);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class TemplateExp : public Expression
{
public:
TemplateDeclaration *td;
FuncDeclaration *fd;
TemplateExp(Loc loc, TemplateDeclaration *td, FuncDeclaration *fd = NULL);
int rvalue(bool allowVoid = false);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
};
class NewExp : public Expression
{
public:
/* thisexp.new(newargs) newtype(arguments)
*/
Expression *thisexp; // if !NULL, 'this' for class being allocated
Expressions *newargs; // Array of Expression's to call new operator
Type *newtype;
Expressions *arguments; // Array of Expression's
CtorDeclaration *member; // constructor function
NewDeclaration *allocator; // allocator function
int onstack; // allocate on stack
NewExp(Loc loc, Expression *thisexp, Expressions *newargs,
Type *newtype, Expressions *arguments);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *optimize(int result, bool keepLvalue = false);
MATCH implicitConvTo(Type *t);
elem *toElem(IRState *irs);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
//int inlineCost3(InlineCostState *ics);
Expression *doInline(InlineDoState *ids);
//Expression *inlineScan(InlineScanState *iss);
};
class NewAnonClassExp : public Expression
{
public:
/* thisexp.new(newargs) class baseclasses { } (arguments)
*/
Expression *thisexp; // if !NULL, 'this' for class being allocated
Expressions *newargs; // Array of Expression's to call new operator
ClassDeclaration *cd; // class being instantiated
Expressions *arguments; // Array of Expression's to call class constructor
NewAnonClassExp(Loc loc, Expression *thisexp, Expressions *newargs,
ClassDeclaration *cd, Expressions *arguments);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class SymbolExp : public Expression
{
public:
Declaration *var;
bool hasOverloads;
SymbolExp(Loc loc, TOK op, int size, Declaration *var, bool hasOverloads);
elem *toElem(IRState *irs);
};
// Offset from symbol
class SymOffExp : public SymbolExp
{
public:
dinteger_t offset;
SymOffExp(Loc loc, Declaration *var, dinteger_t offset, bool hasOverloads = false);
Expression *semantic(Scope *sc);
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
void checkEscape();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
int isConst();
int isBool(int result);
Expression *doInline(InlineDoState *ids);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
dt_t **toDt(dt_t **pdt);
};
// Variable
class VarExp : public SymbolExp
{
public:
VarExp(Loc loc, Declaration *var, bool hasOverloads = false);
static VarExp *create(Loc loc, Declaration *var, bool hasOverloads = false);
bool equals(RootObject *o);
Expression *semantic(Scope *sc);
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
char *toChars();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
void checkEscape();
void checkEscapeRef();
int checkModifiable(Scope *sc, int flag);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
Expression *modifiableLvalue(Scope *sc, Expression *e);
dt_t **toDt(dt_t **pdt);
int inlineCost3(InlineCostState *ics);
Expression *doInline(InlineDoState *ids);
//Expression *inlineScan(InlineScanState *iss);
};
// Overload Set
class OverExp : public Expression
{
public:
OverloadSet *vars;
OverExp(Loc loc, OverloadSet *s);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *e);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
// Function/Delegate literal
class FuncExp : public Expression
{
public:
FuncLiteralDeclaration *fd;
TemplateDeclaration *td;
TOK tok;
FuncExp(Loc loc, FuncLiteralDeclaration *fd, TemplateDeclaration *td = NULL);
void genIdent(Scope *sc);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
Expression *semantic(Scope *sc, Expressions *arguments);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *implicitCastTo(Scope *sc, Type *t);
MATCH implicitConvTo(Type *t);
Expression *castTo(Scope *sc, Type *t);
Expression *inferType(Type *t, int flag = 0, Scope *sc = NULL, TemplateParameters *tparams = NULL);
char *toChars();
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
elem *toElem(IRState *irs);
dt_t **toDt(dt_t **pdt);
int inlineCost3(InlineCostState *ics);
//Expression *doInline(InlineDoState *ids);
//Expression *inlineScan(InlineScanState *iss);
};
// Declaration of a symbol
class DeclarationExp : public Expression
{
public:
Dsymbol *declaration;
DeclarationExp(Loc loc, Dsymbol *declaration);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
elem *toElem(IRState *irs);
int inlineCost3(InlineCostState *ics);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
};
class TypeidExp : public Expression
{
public:
RootObject *obj;
TypeidExp(Loc loc, RootObject *obj);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class TraitsExp : public Expression
{
public:
Identifier *ident;
Objects *args;
TraitsExp(Loc loc, Identifier *ident, Objects *args);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
Expression *isTypeX(bool (*fp)(Type *t));
Expression *isFuncX(bool (*fp)(FuncDeclaration *f));
Expression *isDeclX(bool (*fp)(Declaration *d));
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class HaltExp : public Expression
{
public:
HaltExp(Loc loc);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
elem *toElem(IRState *irs);
};
class IsExp : public Expression
{
public:
/* is(targ id tok tspec)
* is(targ id == tok2)
*/
Type *targ;
Identifier *id; // can be NULL
TOK tok; // ':' or '=='
Type *tspec; // can be NULL
TOK tok2; // 'struct', 'union', 'typedef', etc.
TemplateParameters *parameters;
IsExp(Loc loc, Type *targ, Identifier *id, TOK tok, Type *tspec,
TOK tok2, TemplateParameters *parameters);
Expression *syntaxCopy();
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
/****************************************************************/
class UnaExp : public Expression
{
public:
Expression *e1;
Type *att1; // Save alias this type to detect recursion
UnaExp(Loc loc, TOK op, int size, Expression *e1);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
Expression *optimize(int result, bool keepLvalue = false);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *resolveLoc(Loc loc, Scope *sc);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
virtual Expression *op_overload(Scope *sc);
};
typedef Expression *(*fp_t)(Type *, Expression *, Expression *);
typedef int (*fp2_t)(Loc loc, TOK, Expression *, Expression *);
class BinExp : public Expression
{
public:
Expression *e1;
Expression *e2;
Type *att1; // Save alias this type to detect recursion
Type *att2; // Save alias this type to detect recursion
BinExp(Loc loc, TOK op, int size, Expression *e1, Expression *e2);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
Expression *semanticp(Scope *sc);
Expression *checkComplexOpAssign(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
Expression *scaleFactor(Scope *sc);
Expression *typeCombine(Scope *sc);
Expression *optimize(int result, bool keepLvalue = false);
int isunsigned();
Expression *incompatibleTypes();
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *interpretCommon(InterState *istate, CtfeGoal goal, fp_t fp);
Expression *interpretCompareCommon(InterState *istate, CtfeGoal goal, fp2_t fp);
Expression *interpretAssignCommon(InterState *istate, CtfeGoal goal, fp_t fp, int post = 0);
Expression *interpretFourPointerRelation(InterState *istate, CtfeGoal goal);
virtual Expression *arrayOp(Scope *sc);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
Expression *op_overload(Scope *sc);
Expression *compare_overload(Scope *sc, Identifier *id);
Expression *reorderSettingAAElem(Scope *sc);
void buildArrayIdent(OutBuffer *buf, Expressions *arguments);
Expression *buildArrayLoop(Parameters *fparams);
elem *toElemBin(IRState *irs, int op);
};
class BinAssignExp : public BinExp
{
public:
BinAssignExp(Loc loc, TOK op, int size, Expression *e1, Expression *e2)
: BinExp(loc, op, size, e1, e2)
{
}
Expression *semantic(Scope *sc);
Expression *arrayOp(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
Expression *op_overload(Scope *sc);
void buildArrayIdent(OutBuffer *buf, Expressions *arguments);
Expression *buildArrayLoop(Parameters *fparams);
int isLvalue();
Expression *toLvalue(Scope *sc, Expression *ex);
Expression *modifiableLvalue(Scope *sc, Expression *e);
};
/****************************************************************/
class CompileExp : public UnaExp
{
public:
CompileExp(Loc loc, Expression *e);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class FileExp : public UnaExp
{
public:
FileExp(Loc loc, Expression *e);
Expression *semantic(Scope *sc);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class AssertExp : public UnaExp
{
public:
Expression *msg;
AssertExp(Loc loc, Expression *e, Expression *msg = NULL);
Expression *syntaxCopy();
int apply(apply_fp_t fp, void *param);
Expression *semantic(Scope *sc);
Expression *interpret(InterState *istate, CtfeGoal goal = ctfeNeedRvalue);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
Expression *doInline(InlineDoState *ids);
Expression *inlineScan(InlineScanState *iss);
elem *toElem(IRState *irs);
};
class DotIdExp : public UnaExp
{
public:
Identifier *ident;
DotIdExp(Loc loc, Expression *e, Identifier *ident);
static DotIdExp *create(Loc loc, Expression *e, Identifier *ident);
Expression *semantic(Scope *sc);
Expression *semanticX(Scope *sc);
Expression *semanticY(Scope *sc, int flag);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class DotTemplateExp : public UnaExp
{
public:
TemplateDeclaration *td;
DotTemplateExp(Loc loc, Expression *e, TemplateDeclaration *td);
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};
class DotVarExp : public UnaExp
{
public:
Declaration *var;
bool hasOverloads;
DotVarExp(Loc loc, Expression *e, Declaration *var, bool hasOverloads = false);
Expression *semantic(Scope *sc);