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      1 
      2 /* Compiler implementation of the D programming language
      3  * Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved
      4  * written by Walter Bright
      5  * https://www.digitalmars.com
      6  * Distributed under the Boost Software License, Version 1.0.
      7  * https://www.boost.org/LICENSE_1_0.txt
      8  * https://github.com/dlang/dmd/blob/master/src/dmd/ctfe.h
      9  */
     10 
     11 #pragma once
     12 
     13 #include "tokens.h"
     14 #include "expression.h"
     15 
     16 /**
     17   A reference to a class, or an interface. We need this when we
     18   point to a base class (we must record what the type is).
     19  */
     20 class ClassReferenceExp : public Expression
     21 {
     22 public:
     23     StructLiteralExp *value;
     24     ClassDeclaration *originalClass();
     25 
     26     /// Return index of the field, or -1 if not found
     27     /// Same as getFieldIndex, but checks for a direct match with the VarDeclaration
     28     int findFieldIndexByName(VarDeclaration *v);
     29     void accept(Visitor *v) { v->visit(this); }
     30 };
     31 
     32 /**
     33   An uninitialized value
     34  */
     35 class VoidInitExp : public Expression
     36 {
     37 public:
     38     VarDeclaration *var;
     39 
     40     const char *toChars() const;
     41     void accept(Visitor *v) { v->visit(this); }
     42 };
     43 
     44 /**
     45   Fake class which holds the thrown exception.
     46   Used for implementing exception handling.
     47 */
     48 class ThrownExceptionExp : public Expression
     49 {
     50 public:
     51     ClassReferenceExp *thrown; // the thing being tossed
     52     const char *toChars() const;
     53     void accept(Visitor *v) { v->visit(this); }
     54 };
     55 
     56 /****************************************************************/
     57 
     58 // This type is only used by the interpreter.
     59 
     60 class CTFEExp : public Expression
     61 {
     62 public:
     63     const char *toChars() const;
     64 };
     65