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e0e8170fe6
Unlike macros, REPTs and INCLUDEs, this recursion depth is independent. This is intentional, because string expansions work very differently. While it's easy to know when a string expansion begins, checking where it ends is much more complicated, since the expansion's contents are simply injected back into the lex buffer. Therefore, the depth has to be checked after lexing took place. Because of this, the placement of the expansion end check is somewhat haphazard, but I think it's good. While I have no certainty, all tests ended with all expansions properly ended, and I couldn't find any pitfalls. Finally, `pCurrentStringExpansion` has been made global so error printing can use it to tell the user if an error occurred inside of an expansion.
51 lines
1.0 KiB
C
51 lines
1.0 KiB
C
/*
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* This file is part of RGBDS.
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*
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* Copyright (c) 1997-2018, Carsten Sorensen and RGBDS contributors.
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*
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* SPDX-License-Identifier: MIT
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*/
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/*
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* Contains some assembler-wide defines and externs
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*/
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#ifndef RGBDS_ASM_FSTACK_H
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#define RGBDS_ASM_FSTACK_H
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#include <stdint.h>
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#include <stdio.h>
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#include "asm/asm.h"
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#include "asm/lexer.h"
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#include "types.h"
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struct sContext {
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YY_BUFFER_STATE FlexHandle;
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struct sSymbol *pMacro;
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struct sContext *pNext;
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char tzFileName[_MAX_PATH + 1];
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char *tzMacroArgs[MAXMACROARGS + 1];
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int32_t nLine;
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uint32_t nStatus;
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FILE *pFile;
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char *pREPTBlock;
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uint32_t nREPTBlockCount;
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uint32_t nREPTBlockSize;
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};
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extern unsigned int nMaxRecursionDepth;
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void fstk_RunInclude(char *tzFileName);
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void fstk_RunMacroArg(int32_t s);
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void fstk_Init(char *s);
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void fstk_Dump(void);
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void fstk_AddIncludePath(char *s);
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uint32_t fstk_RunMacro(char *s);
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void fstk_RunRept(uint32_t count);
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FILE *fstk_FindFile(char *fname, char **incPathUsed);
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int32_t fstk_GetLine(void);
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#endif /* RGBDS_ASM_FSTACK_H */
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