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Revised symbol scoping

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2614 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2003-11-06 11:22:31 +00:00
parent 4a667ead00
commit 8400fb848a
13 changed files with 682 additions and 596 deletions
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80
src/ca65/symentry.h
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@@ -69,6 +69,15 @@
#define SF_DEFINED 0x4000 /* Defined */
#define SF_REFERENCED 0x8000 /* Referenced */
/* Flags used in SymDef */
#define SYM_DEFAULT 0x00
#define SYM_ZP 0x01
#define SYM_LABEL 0x02
/* Arguments for SymFind... */
#define SYM_FIND_EXISTING 0
#define SYM_ALLOC_NEW 1
/* Structure of a symbol table entry */
typedef struct SymEntry SymEntry;
struct SymEntry {
@@ -94,37 +103,92 @@ struct SymEntry {
/* List of all symbol table entries */
extern SymEntry* SymList;
/* Pointer to last defined symbol */
extern SymEntry* SymLast;
/*****************************************************************************/
/* Code */
/* Code */
/*****************************************************************************/
SymEntry* NewSymEntry (unsigned Name);
int IsLocalName (const char* Name);
/* Return true if Name is the name of a local symbol */
int IsLocalNameId (unsigned Name);
/* Return true if Name is the name of a local symbol */
SymEntry* NewSymEntry (const char* Name);
/* Allocate a symbol table entry, initialize and return it */
#if defined(HAVE_INLINE)
INLINE void SymAddRef (SymEntry* Sym, struct ExprNode* Expr)
/* Add a reference to this symbol */
INLINE void SymAddExprRef (SymEntry* Sym, struct ExprNode* Expr)
/* Add an expression reference to this symbol */
{
CollAppend (&Sym->ExprRefs, Expr);
}
#else
#define SymAddRef(Sym,Expr) CollAppend (&(Sym)->ExprRefs, Expr)
#define SymAddExprRef(Sym,Expr) CollAppend (&(Sym)->ExprRefs, Expr)
#endif
#if defined(HAVE_INLINE)
INLINE void SymDelRef (SymEntry* Sym, struct ExprNode* Expr)
/* Delete a reference to this symbol */
INLINE void SymDelExprRef (SymEntry* Sym, struct ExprNode* Expr)
/* Delete an expression reference to this symbol */
{
CollDeleteItem (&Sym->ExprRefs, Expr);
}
#else
#define SymDelRef(Sym,Expr) CollDeleteItem (&(Sym)->ExprRefs, Expr)
#define SymDelExprRef(Sym,Expr) CollDeleteItem (&(Sym)->ExprRefs, Expr)
#endif
void SymDef (SymEntry* Sym, ExprNode* Expr, unsigned Flags);
/* Mark a symbol as defined */
void SymRef (SymEntry* Sym);
/* Mark the given symbol as referenced */
int SymIsDef (const SymEntry* Sym);
/* Return true if the given symbol is already defined */
int SymIsRef (const SymEntry* Sym);
/* Return true if the given symbol has been referenced */
int SymIsImport (const SymEntry* Sym);
/* Return true if the given symbol is marked as import */
int SymHasExpr (const SymEntry* Sym);
/* Return true if the given symbol has an associated expression */
void SymFinalize (SymEntry* S);
/* Finalize a symbol expression if there is one */
void SymMarkUser (SymEntry* Sym);
/* Set a user mark on the specified symbol */
void SymUnmarkUser (SymEntry* Sym);
/* Remove a user mark from the specified symbol */
int SymHasUserMark (SymEntry* Sym);
/* Return the state of the user mark for the specified symbol */
long GetSymVal (SymEntry* Sym);
/* Return the symbol value */
struct ExprNode* GetSymExpr (SymEntry* Sym);
/* Get the expression for a non-const symbol */
const char* GetSymName (SymEntry* Sym);
/* Return the name of the symbol */
unsigned GetSymIndex (SymEntry* Sym);
/* Return the symbol index for the given symbol */
const FilePos* GetSymPos (SymEntry* Sym);
/* Return the position of first occurence in the source for the given symbol */
/* End of symentry.h */