src/mesa/shader/slang/MachineIndependent/preprocessor/symbols.h

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  77 /* */
  78 /* symbols.h */
  79 /* */
  80
  81 #if !defined(__SYMBOLS_H)
  82 #define __SYMBOLS_H 1
  83
  84 #include "memory.h"
  85
  86 typedef enum symbolkind {
  87    MACRO_S
  88 } symbolkind;
  89
  90 /* Typedefs for things defined here in "symbols.h": */
  91
  92 typedef struct Scope_Rec Scope;
  93 typedef struct Symbol_Rec Symbol;
  94
  95 typedef struct SymbolList_Rec {
  96     struct SymbolList_Rec *next;
  97     Symbol *symb;
  98 } SymbolList;
  99
 100 struct Scope_Rec {
 101     Scope *next, *prev;     /* doubly-linked list of all scopes */
 102     Scope *parent;
 103     Scope *funScope;        /* Points to base scope of enclosing function */
 104     MemoryPool *pool;       /* pool used for allocation in this scope */
 105     Symbol *symbols;
 106
 107         int level;              /* 0 = super globals, 1 = globals, etc. */
 108
 109     /* Only used at global scope (level 1): */
 110     SymbolList *programs;   /* List of programs for this compilation. */
 111 };
 112
 113
 114 /* Symbol table is a simple binary tree. */
 115
 116 #include "cpp.h"        /* to get MacroSymbol def */
 117
 118 struct Symbol_Rec {
 119     Symbol *left, *right;
 120     Symbol *next;
 121     int name;       /* Name atom */
 122     SourceLoc loc;
 123     symbolkind kind;
 124     union {
 125         MacroSymbol mac;
 126     } details;
 127 };
 128
 129 extern Scope *CurrentScope;
 130 extern Scope *GlobalScope;
 131 extern Scope *ScopeList;
 132
 133 Scope *NewScopeInPool(MemoryPool *);
 134 #define NewScope()      NewScopeInPool(CurrentScope->pool)
 135 void PushScope(Scope *fScope);
 136 Scope *PopScope(void);
 137 Symbol *NewSymbol(SourceLoc *loc, Scope *fScope, int name, symbolkind kind);
 138 Symbol *AddSymbol(SourceLoc *loc, Scope *fScope, int atom, symbolkind kind);
 139 Symbol *LookUpLocalSymbol(Scope *fScope, int atom);
 140 Symbol *LookUpSymbol(Scope *fScope, int atom);
 141 void CPPErrorToInfoLog(char *);
 142
 143
 144 #endif /* !defined(__SYMBOLS_H) */
 145