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186 lines
6.2 KiB
C
186 lines
6.2 KiB
C
/*****************************************************************************/
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/* */
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/* symtab.h */
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/* */
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/* Symbol table for the ca65 macroassembler */
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/* */
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/* */
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/* */
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/* (C) 1998-2003 Ullrich von Bassewitz */
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/* Römerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef SYMTAB_H
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#define SYMTAB_H
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#include <stdio.h>
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/* common */
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#include "exprdefs.h"
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/* ca65 */
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#include "symentry.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Scope identifiers */
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#define SCOPE_ANY 0
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#define SCOPE_GLOBAL 1
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#define SCOPE_LOCAL 2
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/* Flags used in SymDef */
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#define SYM_DEFAULT 0x00
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#define SYM_ZP 0x01
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#define SYM_LABEL 0x02
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void SymEnterLevel (const char* ScopeName);
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/* Enter a new lexical level */
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void SymLeaveLevel (void);
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/* Leave the current lexical level */
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int SymIsLocalLevel (void);
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/* Return true if we are on a local symbol table level. */
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void SymDef (const char* Name, ExprNode* Expr, unsigned Flags);
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/* Define a new symbol */
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SymEntry* SymRef (const char* Name, int Scope);
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/* Search for the symbol and return it */
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int SymIsDef (const char* Name, int Scope);
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/* Return true if the given symbol is already defined */
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int SymIsRef (const char* Name, int Scope);
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/* Return true if the given symbol has been referenced */
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void SymImport (const char* Name);
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/* Mark the given symbol as an imported symbol */
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void SymImportZP (const char* Name);
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/* Mark the given symbol as a imported zeropage symbol */
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void SymImportForced (const char* Name);
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/* Mark the given symbol as a forced imported symbol */
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void SymExport (const char* Name);
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/* Mark the given symbol as an exported symbol */
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void SymExportZP (const char* Name);
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/* Mark the given symbol as an exported zeropage symbol */
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void SymGlobal (const char* Name);
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/* Mark the given symbol as a global symbol, that is, as a symbol that is
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* either imported or exported.
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*/
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void SymGlobalZP (const char* Name);
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/* Mark the given symbol as a global zeropage symbol, that is, as a symbol
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* that is either imported or exported.
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*/
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void SymConDes (const char* Name, unsigned Type, unsigned Prio);
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/* Mark the given symbol as a module constructor/destructor. This will also
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* mark the symbol as an export. Initializers may never be zero page symbols.
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*/
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int SymIsConst (SymEntry* Sym);
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/* Return true if the given symbol has a constant value */
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int SymIsZP (SymEntry* Sym);
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/* Return true if the symbol is explicitly marked as zeropage symbol */
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int SymIsImport (SymEntry* Sym);
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/* Return true if the given symbol is marked as import */
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int SymHasExpr (SymEntry* Sym);
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/* Return true if the given symbol has an associated expression */
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void SymMarkUser (SymEntry* Sym);
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/* Set a user mark on the specified symbol */
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void SymUnmarkUser (SymEntry* Sym);
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/* Remove a user mark from the specified symbol */
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int SymHasUserMark (SymEntry* Sym);
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/* Return the state of the user mark for the specified symbol */
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long GetSymVal (SymEntry* Sym);
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/* Return the symbol value */
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ExprNode* GetSymExpr (SymEntry* Sym);
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/* Get the expression for a non-const symbol */
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const char* GetSymName (SymEntry* Sym);
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/* Return the name of the symbol */
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unsigned GetSymIndex (SymEntry* Sym);
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/* Return the symbol index for the given symbol */
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const FilePos* GetSymPos (SymEntry* Sym);
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/* Return the position of first occurence in the source for the given symbol */
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void SymCheck (void);
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/* Run through all symbols and check for anomalies and errors */
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void SymDump (FILE* F);
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/* Dump the symbol table */
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void WriteImports (void);
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/* Write the imports list to the object file */
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void WriteExports (void);
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/* Write the exports list to the object file */
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void WriteDbgSyms (void);
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/* Write a list of all symbols to the object file */
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/* End of symtab.h */
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#endif
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