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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/***************************************************************************/
/* ILFormatter.h */
/***************************************************************************/
#ifndef ILFormatter_h
#define ILFormatter_h
#include "opinfo.h"
#include "outstring.h"
struct IMetaDataImport;
#define INVALID_IL_OFFSET 0x80000000
/***************************************************************************/
class ILFormatter {
public:
ILFormatter() : start(0), targetStart(0), stackStart(0) {}
ILFormatter(IMetaDataImport* aMeta, const BYTE* aStart,
const BYTE* aLimit, unsigned maxStack, const COR_ILMETHOD_SECT_EH* eh)
: targetStart(0), stackStart(0) {
init(aMeta, aStart, aLimit, maxStack, eh);
}
~ILFormatter() { delete [] stackStart; delete [] targetStart; }
void init(IMetaDataImport* aMeta, const BYTE* aStart,
const BYTE* aLimit, unsigned maxStack, const COR_ILMETHOD_SECT_EH* eh);
const BYTE* formatStatement(const BYTE* stmtIL, OutString* out);
const BYTE* formatInstr(const BYTE* instrIL, OutString* out);
private:
void formatInstrArgs(OpInfo op, OpArgsVal arg, OutString* out, size_t curIP=INVALID_IL_OFFSET);
void formatArgs(unsigned numArgs, OutString* out);
void spillStack(OutString* out);
void setStackAsTarget(size_t ilOffset);
void setTarget(size_t ilOffset, size_t depth);
private:
const BYTE* start; // keeps us sane
const BYTE* limit;
IMetaDataImport* meta; // used to parse tokens etc
struct StackEntry {
OutString val;
int prec;
};
struct Target {
size_t ilOffset;
size_t stackDepth;
};
Target* targetStart;
Target* targetEnd;
Target* targetCur;
size_t stackDepth();
void pushAndClear(OutString* val, int prec);
OutString* pop(int prec = 0);
OutString* top();
void popN(size_t num);
StackEntry* stackStart;
StackEntry* stackEnd;
StackEntry* stackCur; // points at the next slot to fill
};
#endif
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