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src/ca65/symtab.h

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+/*****************************************************************************/
+/*                                                                           */
+/*				   symtab.h				     */
+/*                                                                           */
+/*		   Symbol table for the ca65 macroassembler		     */
+/*                                                                           */
+/*                                                                           */
+/*                                                                           */
+/* (C) 1998     Ullrich von Bassewitz                                        */
+/*              Wacholderweg 14                                              */
+/*              D-70597 Stuttgart                                            */
+/* EMail:       uz@musoftware.de                                             */
+/*                                                                           */
+/*                                                                           */
+/* This software is provided 'as-is', without any expressed or implied       */
+/* warranty.  In no event will the authors be held liable for any damages    */
+/* arising from the use of this software.                                    */
+/*                                                                           */
+/* Permission is granted to anyone to use this software for any purpose,     */
+/* including commercial applications, and to alter it and redistribute it    */
+/* freely, subject to the following restrictions:                            */
+/*                                                                           */
+/* 1. The origin of this software must not be misrepresented; you must not   */
+/*    claim that you wrote the original software. If you use this software   */
+/*    in a product, an acknowledgment in the product documentation would be  */
+/*    appreciated but is not required.                                       */
+/* 2. Altered source versions must be plainly marked as such, and must not   */
+/*    be misrepresented as being the original software.                      */
+/* 3. This notice may not be removed or altered from any source              */
+/*    distribution.                                                          */
+/*                                                                           */
+/*****************************************************************************/
+
+
+
+#ifndef SYMTAB_H
+#define SYMTAB_H
+
+
+
+#include <stdio.h>
+
+#include "../common/exprdefs.h"
+
+#include "symentry.h"
+
+
+
+/*****************************************************************************/
+/*  	       		      	     Code				     */
+/*****************************************************************************/
+
+
+
+void SymEnterLevel (void);
+/* Enter a new lexical level */
+
+void SymLeaveLevel (void);
+/* Leave the current lexical level */
+
+void SymDef (const char* Name, ExprNode* Expr, int ZP);
+/* Define a new symbol */
+
+SymEntry* SymRef (const char* Name);
+/* Search for the symbol and return it */
+
+SymEntry* SymRefGlobal (const char* Name);
+/* Search for the symbol in the global namespace and return it */
+
+int SymIsDef (const char* Name);
+/* Return true if the given symbol is already defined */
+
+int SymIsRef (const char* Name);
+/* Return true if the given symbol has been referenced */
+
+void SymImport (const char* Name, int ZP);
+/* Mark the given symbol as an imported symbol */
+
+void SymExport (const char* Name, int ZP);
+/* Mark the given symbol as an exported symbol */
+
+void SymGlobal (const char* Name, int ZP);
+/* Mark the given symbol as a global symbol, that is, as a symbol that is
+ * either imported or exported.
+ */
+
+int SymIsConst (SymEntry* Sym);
+/* Return true if the given symbol has a constant value */
+
+int SymIsZP (SymEntry* Sym);
+/* Return true if the symbol is explicitly marked as zeropage symbol */
+
+int SymIsImport (SymEntry* Sym);
+/* Return true if the given symbol is marked as import */
+
+int SymHasExpr (SymEntry* Sym);
+/* Return true if the given symbol has an associated expression */
+
+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 */
+
+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 */
+
+void SymCheck (void);
+/* Run through all symbols and check for anomalies and errors */
+
+void SymDump (FILE* F);
+/* Dump the symbol table */
+
+void WriteImports (void);
+/* Write the imports list to the object file */
+
+void WriteExports (void);
+/* Write the exports list to the object file */
+
+void WriteDbgSyms (void);
+/* Write a list of all symbols to the object file */
+
+
+
+/* End of symtab.h */
+
+#endif
+
+
+