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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.
//
// file: method.cpp
//
//
#include "ilasmpch.h"
#include "assembler.h"
Method::Method(Assembler *pAssembler, Class *pClass, __in __nullterminated char *pszName, BinStr* pbsSig, DWORD Attr)
{
// default values
m_pClass = pClass;
m_MaxStack = 8;
m_Flags = 0;
m_LocalsSig = 0;
m_dwNumExceptions = 0;
m_dwNumEndfilters = 0;
m_firstArgName = NULL;
m_firstVarName = NULL;
m_pMethodSig = NULL;
m_wImplAttr = miIL; //default, if native or optil are not specified
m_wVTEntry = 0;
m_wVTSlot = 0;
m_pAssembler = pAssembler;
m_pCurrScope = &m_MainScope;
m_pRetMarshal = NULL;
m_pRetValue = NULL;
m_szExportAlias = NULL;
m_dwExportOrdinal = 0xFFFFFFFF;
m_ulLines[0]=m_ulLines[1]=0;
m_ulColumns[0]=m_ulColumns[1]=0;
m_pbsBody = NULL;
m_fNewBody = TRUE;
m_fNew = TRUE;
// move the PInvoke descriptor (if any) from Assembler
// (Assembler gets the descriptor BEFORE it calls new Method)
m_pPInvoke = pAssembler->m_pPInvoke;
pAssembler->m_pPInvoke = NULL;
_ASSERTE(pszName);
if (!pszName) return;
m_szName = pszName;
m_dwName = (DWORD)strlen(pszName);
m_ExceptionList = new COR_ILMETHOD_SECT_EH_CLAUSE_FAT[MAX_EXCEPTIONS];
m_EndfilterOffsetList = new DWORD[MAX_EXCEPTIONS];
if((m_ExceptionList==NULL)||(m_EndfilterOffsetList==NULL))
{
fprintf(stderr,"\nOutOfMemory!\n");
return;
}
m_dwMaxNumExceptions = MAX_EXCEPTIONS;
m_dwMaxNumEndfilters = MAX_EXCEPTIONS;
m_Attr = Attr;
if((!strcmp(pszName,COR_CCTOR_METHOD_NAME))||(!strcmp(pszName,COR_CTOR_METHOD_NAME)))
m_Attr |= mdSpecialName;
m_fEntryPoint = FALSE;
m_fGlobalMethod = FALSE;
if(pbsSig)
{
m_dwMethodCSig = pbsSig->length();
m_pMethodSig = (COR_SIGNATURE*)(pbsSig->ptr());
m_pbsMethodSig = pbsSig;
}
m_firstArgName = pAssembler->getArgNameList();
if(pClass == NULL) pClass = pAssembler->m_pModuleClass; // fake "class" <Module>
pClass->m_MethodList.PUSH(this);
pClass->m_fNewMembers = TRUE;
m_pPermissions = NULL;
m_pPermissionSets = NULL;
m_TyPars = NULL;
m_NumTyPars = 0;
}
// lexical scope handling
void Method::OpenScope()
{
Scope* psc = new Scope;
if(psc)
{
psc->dwStart = m_pAssembler->m_CurPC;
psc->pSuperScope = m_pCurrScope;
m_pCurrScope->SubScope.PUSH(psc);
m_pCurrScope = psc;
}
}
void Method::CloseScope()
{
VarDescr* pVD;
ARG_NAME_LIST* pAN;
for(pAN=m_pCurrScope->pLocals; pAN; pAN = pAN->pNext)
{
if((pVD = m_Locals.PEEK(pAN->dwAttr))) pVD->bInScope = FALSE;
}
m_pCurrScope->dwEnd = m_pAssembler->m_CurPC;
m_pCurrScope = m_pCurrScope->pSuperScope;
}
Label *Method::FindLabel(LPCUTF8 pszName)
{
Label lSearch(pszName,0), *pL;
lSearch.m_szName = pszName;
//pL = m_lstLabel.FIND(&lSearch);
pL = m_pAssembler->m_lstLabel.FIND(&lSearch);
lSearch.m_szName = NULL;
return pL;
//return m_lstLabel.FIND(pszName);
}
Label *Method::FindLabel(DWORD PC)
{
Label *pSearch;
//for (int i = 0; (pSearch = m_lstLabel.PEEK(i)); i++)
for (int i = 0; (pSearch = m_pAssembler->m_lstLabel.PEEK(i)); i++)
{
if (pSearch->m_PC == PC)
return pSearch;
}
return NULL;
}
// Method::AddGenericParamConstraint is called when we have a .param constraint directive after a method definition
//
void Method::AddGenericParamConstraint(int index, char * pStrGenericParam, mdToken tkTypeConstraint)
{
if (index > 0)
{
if (pStrGenericParam != 0)
{
m_pAssembler->report->error("LOGIC ERROR - we have both an index and a pStrGenericParam");
return;
}
if (index > (int)m_NumTyPars)
{
m_pAssembler->report->error("Type parameter index out of range: 1.. %d\n", m_NumTyPars);
return;
}
index = index - 1;
}
else // index was 0, so a name must be supplied by pStrGenericParam
{
if (pStrGenericParam == 0)
{
m_pAssembler->report->error("LOGIC ERROR - we have neither an index or a pStrGenericParam");
return;
}
index = FindTyPar(pStrGenericParam);
if (index == -1)
{
m_pAssembler->report->error("Type parameter '%s' undefined\n", pStrGenericParam);
return;
}
}
// pass true for isParamDirective, we are parsing a .param directive for a method here
//
m_pAssembler->CheckAddGenericParamConstraint(&m_GPCList, index, tkTypeConstraint, true);
}
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