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scope.h
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scope.h
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// 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_SCOPE_H
#define DMD_SCOPE_H
#ifdef __DMC__
#pragma once
#endif
struct Dsymbol;
struct ScopeDsymbol;
struct Identifier;
struct Module;
struct Statement;
struct SwitchStatement;
struct TryFinallyStatement;
struct LabelStatement;
struct ForeachStatement;
struct ClassDeclaration;
struct AggregateDeclaration;
struct FuncDeclaration;
struct DocComment;
struct TemplateInstance;
#if IN_LLVM
struct EnclosingHandler;
struct AnonDeclaration;
#endif
#if __GNUC__
// Requires a full definition for PROT and LINK
#include "dsymbol.h" // PROT
#include "mars.h" // LINK
#else
enum LINK;
enum PROT;
#endif
#define CSXthis_ctor 1 // called this()
#define CSXsuper_ctor 2 // called super()
#define CSXthis 4 // referenced this
#define CSXsuper 8 // referenced super
#define CSXlabel 0x10 // seen a label
#define CSXreturn 0x20 // seen a return statement
#define CSXany_ctor 0x40 // either this() or super() was called
#define SCOPEctor 1 // constructor type
#define SCOPEstaticif 2 // inside static if
#define SCOPEfree 4 // is on free list
#define SCOPEstaticassert 8 // inside static assert
#define SCOPEdebug 0x10 // inside debug conditional
#define SCOPEinvariant 0x20 // inside invariant code
#define SCOPErequire 0x40 // inside in contract code
#define SCOPEensure 0x60 // inside out contract code
#define SCOPEcontract 0x60 // [mask] we're inside contract code
struct Scope
{
Scope *enclosing; // enclosing Scope
Module *module; // Root module
ScopeDsymbol *scopesym; // current symbol
ScopeDsymbol *sd; // if in static if, and declaring new symbols,
// sd gets the addMember()
FuncDeclaration *func; // function we are in
Dsymbol *parent; // parent to use
LabelStatement *slabel; // enclosing labelled statement
SwitchStatement *sw; // enclosing switch statement
TryFinallyStatement *enclosingFinally; // enclosing try finally statement; set inside its finally block
TemplateInstance *tinst; // enclosing template instance
Statement *enclosingScopeExit; // enclosing statement that wants to do something on scope exit
Statement *sbreak; // enclosing statement that supports "break"
Statement *scontinue; // enclosing statement that supports "continue"
ForeachStatement *fes; // if nested function for ForeachStatement, this is it
Scope *callsc; // used for __FUNCTION__, __PRETTY_FUNCTION__ and __MODULE__
unsigned offset; // next offset to use in aggregate
// This really shouldn't be a part of Scope, because it requires
// semantic() to be done in the lexical field order. It should be
// set in a pass after semantic() on all fields so they can be
// semantic'd in any order.
int inunion; // we're processing members of a union
int nofree; // set if shouldn't free it
int noctor; // set if constructor calls aren't allowed
int intypeof; // in typeof(exp)
bool speculative; // in __traits(compiles) or typeof(exp)
int parameterSpecialization; // if in template parameter specialization
int noaccesscheck; // don't do access checks
int needctfe; // inside a ctfe-only expression
#if IN_LLVM
int ignoreTemplates; // set if newly instantiated templates should be ignored when codegen'ing
#endif
unsigned callSuper; // primitive flow analysis for constructors
structalign_t structalign; // alignment for struct members
enum LINK linkage; // linkage for external functions
enum PROT protection; // protection for class members
int explicitProtection; // set if in an explicit protection attribute
StorageClass stc; // storage class
char *depmsg; // customized deprecation message
unsigned flags;
Expressions *userAttributes; // user defined attributes
DocComment *lastdc; // documentation comment for last symbol at this scope
unsigned lastoffset; // offset in docbuf of where to insert next dec
OutBuffer *docbuf; // buffer for documentation output
static Scope *freelist;
static void *operator new(size_t sz);
static Scope *createGlobal(Module *module);
Scope();
Scope(Scope *enclosing);
Scope *push();
Scope *push(ScopeDsymbol *ss);
Scope *pop();
void mergeCallSuper(Loc loc, unsigned cs);
Dsymbol *search(Loc loc, Identifier *ident, Dsymbol **pscopesym);
Dsymbol *search_correct(Identifier *ident);
Dsymbol *insert(Dsymbol *s);
ClassDeclaration *getClassScope();
AggregateDeclaration *getStructClassScope();
void setNoFree();
};
#endif /* DMD_SCOPE_H */