cmFortranParser: Factor out of cmDependsFortran
Move the main parser class and method implementations out of cmDependsFortran.cxx and into separate source files.
This commit is contained in:
Brad King
parent
fd19445802
commit
eebe732bb6
|
|
@ -244,6 +244,7 @@ set(SRCS
|
|||
cmFortranLexer.h
|
||||
cmFortranParser.cxx
|
||||
cmFortranParser.h
|
||||
cmFortranParserImpl.cxx
|
||||
cmGeneratedFileStream.cxx
|
||||
cmGeneratorExpressionContext.cxx
|
||||
cmGeneratorExpressionContext.h
|
||||
|
|
|
|||
|
|
@ -19,83 +19,11 @@
|
|||
#include "cmFortranParser.h" /* Interface to parser object. */
|
||||
#include <cmsys/FStream.hxx>
|
||||
#include <assert.h>
|
||||
#include <stack>
|
||||
|
||||
// TODO: Test compiler for the case of the mod file. Some always
|
||||
// use lower case and some always use upper case. I do not know if any
|
||||
// use the case from the source code.
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
// Information about a single source file.
|
||||
class cmFortranSourceInfo
|
||||
{
|
||||
public:
|
||||
// The name of the source file.
|
||||
std::string Source;
|
||||
|
||||
// Set of provided and required modules.
|
||||
std::set<std::string> Provides;
|
||||
std::set<std::string> Requires;
|
||||
|
||||
// Set of files included in the translation unit.
|
||||
std::set<std::string> Includes;
|
||||
};
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
// Parser methods not included in generated interface.
|
||||
|
||||
// Get the current buffer processed by the lexer.
|
||||
YY_BUFFER_STATE cmFortranLexer_GetCurrentBuffer(yyscan_t yyscanner);
|
||||
|
||||
// The parser entry point.
|
||||
int cmFortran_yyparse(yyscan_t);
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
// Define parser object internal structure.
|
||||
struct cmFortranFile
|
||||
{
|
||||
cmFortranFile(FILE* file, YY_BUFFER_STATE buffer,
|
||||
const std::string& dir):
|
||||
File(file), Buffer(buffer), Directory(dir) {}
|
||||
FILE* File;
|
||||
YY_BUFFER_STATE Buffer;
|
||||
std::string Directory;
|
||||
};
|
||||
|
||||
struct cmFortranParser_s
|
||||
{
|
||||
cmFortranParser_s(std::vector<std::string> const& includes,
|
||||
std::set<std::string> const& defines,
|
||||
cmFortranSourceInfo& info);
|
||||
~cmFortranParser_s();
|
||||
|
||||
bool FindIncludeFile(const char* dir, const char* includeName,
|
||||
std::string& fileName);
|
||||
|
||||
// The include file search path.
|
||||
std::vector<std::string> IncludePath;
|
||||
|
||||
// Lexical scanner instance.
|
||||
yyscan_t Scanner;
|
||||
|
||||
// Stack of open files in the translation unit.
|
||||
std::stack<cmFortranFile> FileStack;
|
||||
|
||||
// Buffer for string literals.
|
||||
std::string TokenString;
|
||||
|
||||
// Flag for whether lexer is reading from inside an interface.
|
||||
bool InInterface;
|
||||
|
||||
int OldStartcond;
|
||||
std::set<std::string> PPDefinitions;
|
||||
size_t InPPFalseBranch;
|
||||
std::stack<bool> SkipToEnd;
|
||||
|
||||
// Information about the parsed source.
|
||||
cmFortranSourceInfo& Info;
|
||||
};
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
class cmDependsFortranInternals
|
||||
{
|
||||
|
|
@ -882,396 +810,3 @@ bool cmDependsFortran::ModulesDiffer(const char* modFile,
|
|||
// The modules are different.
|
||||
return true;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_s::FindIncludeFile(const char* dir,
|
||||
const char* includeName,
|
||||
std::string& fileName)
|
||||
{
|
||||
// If the file is a full path, include it directly.
|
||||
if(cmSystemTools::FileIsFullPath(includeName))
|
||||
{
|
||||
fileName = includeName;
|
||||
return cmSystemTools::FileExists(fileName.c_str(), true);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Check for the file in the directory containing the including
|
||||
// file.
|
||||
std::string fullName = dir;
|
||||
fullName += "/";
|
||||
fullName += includeName;
|
||||
if(cmSystemTools::FileExists(fullName.c_str(), true))
|
||||
{
|
||||
fileName = fullName;
|
||||
return true;
|
||||
}
|
||||
|
||||
// Search the include path for the file.
|
||||
for(std::vector<std::string>::const_iterator i =
|
||||
this->IncludePath.begin(); i != this->IncludePath.end(); ++i)
|
||||
{
|
||||
fullName = *i;
|
||||
fullName += "/";
|
||||
fullName += includeName;
|
||||
if(cmSystemTools::FileExists(fullName.c_str(), true))
|
||||
{
|
||||
fileName = fullName;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
cmFortranParser_s
|
||||
::cmFortranParser_s(std::vector<std::string> const& includes,
|
||||
std::set<std::string> const& defines,
|
||||
cmFortranSourceInfo& info):
|
||||
IncludePath(includes), PPDefinitions(defines), Info(info)
|
||||
{
|
||||
this->InInterface = 0;
|
||||
this->InPPFalseBranch = 0;
|
||||
|
||||
// Initialize the lexical scanner.
|
||||
cmFortran_yylex_init(&this->Scanner);
|
||||
cmFortran_yyset_extra(this, this->Scanner);
|
||||
|
||||
// Create a dummy buffer that is never read but is the fallback
|
||||
// buffer when the last file is popped off the stack.
|
||||
YY_BUFFER_STATE buffer =
|
||||
cmFortran_yy_create_buffer(0, 4, this->Scanner);
|
||||
cmFortran_yy_switch_to_buffer(buffer, this->Scanner);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
cmFortranParser_s::~cmFortranParser_s()
|
||||
{
|
||||
cmFortran_yylex_destroy(this->Scanner);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_FilePush(cmFortranParser* parser,
|
||||
const char* fname)
|
||||
{
|
||||
// Open the new file and push it onto the stack. Save the old
|
||||
// buffer with it on the stack.
|
||||
if(FILE* file = cmsys::SystemTools::Fopen(fname, "rb"))
|
||||
{
|
||||
YY_BUFFER_STATE current =
|
||||
cmFortranLexer_GetCurrentBuffer(parser->Scanner);
|
||||
std::string dir = cmSystemTools::GetParentDirectory(fname);
|
||||
cmFortranFile f(file, current, dir);
|
||||
YY_BUFFER_STATE buffer =
|
||||
cmFortran_yy_create_buffer(0, 16384, parser->Scanner);
|
||||
cmFortran_yy_switch_to_buffer(buffer, parser->Scanner);
|
||||
parser->FileStack.push(f);
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_FilePop(cmFortranParser* parser)
|
||||
{
|
||||
// Pop one file off the stack and close it. Switch the lexer back
|
||||
// to the next one on the stack.
|
||||
if(parser->FileStack.empty())
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
cmFortranFile f = parser->FileStack.top(); parser->FileStack.pop();
|
||||
fclose(f.File);
|
||||
YY_BUFFER_STATE current =
|
||||
cmFortranLexer_GetCurrentBuffer(parser->Scanner);
|
||||
cmFortran_yy_delete_buffer(current, parser->Scanner);
|
||||
cmFortran_yy_switch_to_buffer(f.Buffer, parser->Scanner);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
int cmFortranParser_Input(cmFortranParser* parser,
|
||||
char* buffer, size_t bufferSize)
|
||||
{
|
||||
// Read from the file on top of the stack. If the stack is empty,
|
||||
// the end of the translation unit has been reached.
|
||||
if(!parser->FileStack.empty())
|
||||
{
|
||||
FILE* file = parser->FileStack.top().File;
|
||||
return (int)fread(buffer, 1, bufferSize, file);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_StringStart(cmFortranParser* parser)
|
||||
{
|
||||
parser->TokenString = "";
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
const char* cmFortranParser_StringEnd(cmFortranParser* parser)
|
||||
{
|
||||
return parser->TokenString.c_str();
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_StringAppend(cmFortranParser* parser,
|
||||
char c)
|
||||
{
|
||||
parser->TokenString += c;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_SetInInterface(cmFortranParser* parser,
|
||||
bool in)
|
||||
{
|
||||
if(parser->InPPFalseBranch)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
parser->InInterface = in;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_GetInInterface(cmFortranParser* parser)
|
||||
{
|
||||
return parser->InInterface;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_SetOldStartcond(cmFortranParser* parser,
|
||||
int arg)
|
||||
{
|
||||
parser->OldStartcond = arg;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
int cmFortranParser_GetOldStartcond(cmFortranParser* parser)
|
||||
{
|
||||
return parser->OldStartcond;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_Error(cmFortranParser*, const char*)
|
||||
{
|
||||
// If there is a parser error just ignore it. The source will not
|
||||
// compile and the user will edit it. Then dependencies will have
|
||||
// to be regenerated anyway.
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleUse(cmFortranParser* parser,
|
||||
const char* name)
|
||||
{
|
||||
if(!parser->InPPFalseBranch)
|
||||
{
|
||||
parser->Info.Requires.insert(cmSystemTools::LowerCase(name) );
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleInclude(cmFortranParser* parser,
|
||||
const char* name)
|
||||
{
|
||||
if(parser->InPPFalseBranch)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
// If processing an include statement there must be an open file.
|
||||
assert(!parser->FileStack.empty());
|
||||
|
||||
// Get the directory containing the source in which the include
|
||||
// statement appears. This is always the first search location for
|
||||
// Fortran include files.
|
||||
std::string dir = parser->FileStack.top().Directory;
|
||||
|
||||
// Find the included file. If it cannot be found just ignore the
|
||||
// problem because either the source will not compile or the user
|
||||
// does not care about depending on this included source.
|
||||
std::string fullName;
|
||||
if(parser->FindIncludeFile(dir.c_str(), name, fullName))
|
||||
{
|
||||
// Found the included file. Save it in the set of included files.
|
||||
parser->Info.Includes.insert(fullName);
|
||||
|
||||
// Parse it immediately to translate the source inline.
|
||||
cmFortranParser_FilePush(parser, fullName.c_str());
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleModule(cmFortranParser* parser,
|
||||
const char* name)
|
||||
{
|
||||
if(!parser->InPPFalseBranch && !parser->InInterface)
|
||||
{
|
||||
parser->Info.Provides.insert(cmSystemTools::LowerCase(name));
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleDefine(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
if(!parser->InPPFalseBranch)
|
||||
{
|
||||
parser->PPDefinitions.insert(macro);
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleUndef(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
if(!parser->InPPFalseBranch)
|
||||
{
|
||||
std::set<std::string>::iterator match;
|
||||
match = parser->PPDefinitions.find(macro);
|
||||
if(match != parser->PPDefinitions.end())
|
||||
{
|
||||
parser->PPDefinitions.erase(match);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleIfdef(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
// A new PP branch has been opened
|
||||
parser->SkipToEnd.push(false);
|
||||
|
||||
if (parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch++;
|
||||
}
|
||||
else if(parser->PPDefinitions.find(macro) == parser->PPDefinitions.end())
|
||||
{
|
||||
parser->InPPFalseBranch=1;
|
||||
}
|
||||
else
|
||||
{
|
||||
parser->SkipToEnd.top() = true;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleIfndef(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
// A new PP branch has been opened
|
||||
parser->SkipToEnd.push(false);
|
||||
|
||||
if (parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch++;
|
||||
}
|
||||
else if(parser->PPDefinitions.find(macro) != parser->PPDefinitions.end())
|
||||
{
|
||||
parser->InPPFalseBranch = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
// ignore other branches
|
||||
parser->SkipToEnd.top() = true;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleIf(cmFortranParser* parser)
|
||||
{
|
||||
/* Note: The current parser is _not_ able to get statements like
|
||||
* #if 0
|
||||
* #if 1
|
||||
* #if MYSMBOL
|
||||
* #if defined(MYSYMBOL)
|
||||
* #if defined(MYSYMBOL) && ...
|
||||
* right. The same for #elif. Thus in
|
||||
* #if SYMBOL_1
|
||||
* ..
|
||||
* #elif SYMBOL_2
|
||||
* ...
|
||||
* ...
|
||||
* #elif SYMBOL_N
|
||||
* ..
|
||||
* #else
|
||||
* ..
|
||||
* #endif
|
||||
* _all_ N+1 branches are considered. If you got something like this
|
||||
* #if defined(MYSYMBOL)
|
||||
* #if !defined(MYSYMBOL)
|
||||
* use
|
||||
* #ifdef MYSYMBOL
|
||||
* #ifndef MYSYMBOL
|
||||
* instead.
|
||||
*/
|
||||
|
||||
// A new PP branch has been opened
|
||||
// Never skip! See note above.
|
||||
parser->SkipToEnd.push(false);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleElif(cmFortranParser* parser)
|
||||
{
|
||||
/* Note: There are parser limitations. See the note at
|
||||
* cmFortranParser_RuleIf(..)
|
||||
*/
|
||||
|
||||
// Always taken unless an #ifdef or #ifndef-branch has been taken
|
||||
// already. If the second condition isn't meet already
|
||||
// (parser->InPPFalseBranch == 0) correct it.
|
||||
if(!parser->SkipToEnd.empty() &&
|
||||
parser->SkipToEnd.top() && !parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch = 1;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleElse(cmFortranParser* parser)
|
||||
{
|
||||
// if the parent branch is false do nothing!
|
||||
if(parser->InPPFalseBranch > 1)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
// parser->InPPFalseBranch is either 0 or 1. We change it depending on
|
||||
// parser->SkipToEnd.top()
|
||||
if(!parser->SkipToEnd.empty() &&
|
||||
parser->SkipToEnd.top())
|
||||
{
|
||||
parser->InPPFalseBranch = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
parser->InPPFalseBranch = 0;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleEndif(cmFortranParser* parser)
|
||||
{
|
||||
if(!parser->SkipToEnd.empty())
|
||||
{
|
||||
parser->SkipToEnd.pop();
|
||||
}
|
||||
|
||||
// #endif doesn't know if there was a "#else" in before, so it
|
||||
// always decreases InPPFalseBranch
|
||||
if(parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch--;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -12,6 +12,10 @@
|
|||
#ifndef cmFortranParser_h
|
||||
#define cmFortranParser_h
|
||||
|
||||
#if !defined(cmFortranLexer_cxx) && !defined(cmFortranParser_cxx)
|
||||
# include "cmStandardIncludes.h"
|
||||
#endif
|
||||
|
||||
#include <stddef.h> /* size_t */
|
||||
|
||||
/* Forward declare parser object type. */
|
||||
|
|
@ -93,4 +97,79 @@ int cmFortran_yylex(YYSTYPE* yylvalp, yyscan_t yyscanner)
|
|||
#endif
|
||||
#endif
|
||||
|
||||
#if !defined(cmFortranLexer_cxx) && !defined(cmFortranParser_cxx)
|
||||
#include <stack>
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
// Information about a single source file.
|
||||
class cmFortranSourceInfo
|
||||
{
|
||||
public:
|
||||
// The name of the source file.
|
||||
std::string Source;
|
||||
|
||||
// Set of provided and required modules.
|
||||
std::set<std::string> Provides;
|
||||
std::set<std::string> Requires;
|
||||
|
||||
// Set of files included in the translation unit.
|
||||
std::set<std::string> Includes;
|
||||
};
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
// Parser methods not included in generated interface.
|
||||
|
||||
// Get the current buffer processed by the lexer.
|
||||
YY_BUFFER_STATE cmFortranLexer_GetCurrentBuffer(yyscan_t yyscanner);
|
||||
|
||||
// The parser entry point.
|
||||
int cmFortran_yyparse(yyscan_t);
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
// Define parser object internal structure.
|
||||
struct cmFortranFile
|
||||
{
|
||||
cmFortranFile(FILE* file, YY_BUFFER_STATE buffer,
|
||||
const std::string& dir):
|
||||
File(file), Buffer(buffer), Directory(dir) {}
|
||||
FILE* File;
|
||||
YY_BUFFER_STATE Buffer;
|
||||
std::string Directory;
|
||||
};
|
||||
|
||||
struct cmFortranParser_s
|
||||
{
|
||||
cmFortranParser_s(std::vector<std::string> const& includes,
|
||||
std::set<std::string> const& defines,
|
||||
cmFortranSourceInfo& info);
|
||||
~cmFortranParser_s();
|
||||
|
||||
bool FindIncludeFile(const char* dir, const char* includeName,
|
||||
std::string& fileName);
|
||||
|
||||
// The include file search path.
|
||||
std::vector<std::string> IncludePath;
|
||||
|
||||
// Lexical scanner instance.
|
||||
yyscan_t Scanner;
|
||||
|
||||
// Stack of open files in the translation unit.
|
||||
std::stack<cmFortranFile> FileStack;
|
||||
|
||||
// Buffer for string literals.
|
||||
std::string TokenString;
|
||||
|
||||
// Flag for whether lexer is reading from inside an interface.
|
||||
bool InInterface;
|
||||
|
||||
int OldStartcond;
|
||||
std::set<std::string> PPDefinitions;
|
||||
size_t InPPFalseBranch;
|
||||
std::stack<bool> SkipToEnd;
|
||||
|
||||
// Information about the parsed source.
|
||||
cmFortranSourceInfo& Info;
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -0,0 +1,408 @@
|
|||
/*============================================================================
|
||||
CMake - Cross Platform Makefile Generator
|
||||
Copyright 2000-2015 Kitware, Inc., Insight Software Consortium
|
||||
|
||||
Distributed under the OSI-approved BSD License (the "License");
|
||||
see accompanying file Copyright.txt for details.
|
||||
|
||||
This software is distributed WITHOUT ANY WARRANTY; without even the
|
||||
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
See the License for more information.
|
||||
============================================================================*/
|
||||
#include "cmFortranParser.h"
|
||||
|
||||
#include "cmSystemTools.h"
|
||||
#include <assert.h>
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_s::FindIncludeFile(const char* dir,
|
||||
const char* includeName,
|
||||
std::string& fileName)
|
||||
{
|
||||
// If the file is a full path, include it directly.
|
||||
if(cmSystemTools::FileIsFullPath(includeName))
|
||||
{
|
||||
fileName = includeName;
|
||||
return cmSystemTools::FileExists(fileName.c_str(), true);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Check for the file in the directory containing the including
|
||||
// file.
|
||||
std::string fullName = dir;
|
||||
fullName += "/";
|
||||
fullName += includeName;
|
||||
if(cmSystemTools::FileExists(fullName.c_str(), true))
|
||||
{
|
||||
fileName = fullName;
|
||||
return true;
|
||||
}
|
||||
|
||||
// Search the include path for the file.
|
||||
for(std::vector<std::string>::const_iterator i =
|
||||
this->IncludePath.begin(); i != this->IncludePath.end(); ++i)
|
||||
{
|
||||
fullName = *i;
|
||||
fullName += "/";
|
||||
fullName += includeName;
|
||||
if(cmSystemTools::FileExists(fullName.c_str(), true))
|
||||
{
|
||||
fileName = fullName;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
cmFortranParser_s
|
||||
::cmFortranParser_s(std::vector<std::string> const& includes,
|
||||
std::set<std::string> const& defines,
|
||||
cmFortranSourceInfo& info):
|
||||
IncludePath(includes), PPDefinitions(defines), Info(info)
|
||||
{
|
||||
this->InInterface = 0;
|
||||
this->InPPFalseBranch = 0;
|
||||
|
||||
// Initialize the lexical scanner.
|
||||
cmFortran_yylex_init(&this->Scanner);
|
||||
cmFortran_yyset_extra(this, this->Scanner);
|
||||
|
||||
// Create a dummy buffer that is never read but is the fallback
|
||||
// buffer when the last file is popped off the stack.
|
||||
YY_BUFFER_STATE buffer =
|
||||
cmFortran_yy_create_buffer(0, 4, this->Scanner);
|
||||
cmFortran_yy_switch_to_buffer(buffer, this->Scanner);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
cmFortranParser_s::~cmFortranParser_s()
|
||||
{
|
||||
cmFortran_yylex_destroy(this->Scanner);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_FilePush(cmFortranParser* parser,
|
||||
const char* fname)
|
||||
{
|
||||
// Open the new file and push it onto the stack. Save the old
|
||||
// buffer with it on the stack.
|
||||
if(FILE* file = cmsys::SystemTools::Fopen(fname, "rb"))
|
||||
{
|
||||
YY_BUFFER_STATE current =
|
||||
cmFortranLexer_GetCurrentBuffer(parser->Scanner);
|
||||
std::string dir = cmSystemTools::GetParentDirectory(fname);
|
||||
cmFortranFile f(file, current, dir);
|
||||
YY_BUFFER_STATE buffer =
|
||||
cmFortran_yy_create_buffer(0, 16384, parser->Scanner);
|
||||
cmFortran_yy_switch_to_buffer(buffer, parser->Scanner);
|
||||
parser->FileStack.push(f);
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_FilePop(cmFortranParser* parser)
|
||||
{
|
||||
// Pop one file off the stack and close it. Switch the lexer back
|
||||
// to the next one on the stack.
|
||||
if(parser->FileStack.empty())
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
cmFortranFile f = parser->FileStack.top(); parser->FileStack.pop();
|
||||
fclose(f.File);
|
||||
YY_BUFFER_STATE current =
|
||||
cmFortranLexer_GetCurrentBuffer(parser->Scanner);
|
||||
cmFortran_yy_delete_buffer(current, parser->Scanner);
|
||||
cmFortran_yy_switch_to_buffer(f.Buffer, parser->Scanner);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
int cmFortranParser_Input(cmFortranParser* parser,
|
||||
char* buffer, size_t bufferSize)
|
||||
{
|
||||
// Read from the file on top of the stack. If the stack is empty,
|
||||
// the end of the translation unit has been reached.
|
||||
if(!parser->FileStack.empty())
|
||||
{
|
||||
FILE* file = parser->FileStack.top().File;
|
||||
return (int)fread(buffer, 1, bufferSize, file);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_StringStart(cmFortranParser* parser)
|
||||
{
|
||||
parser->TokenString = "";
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
const char* cmFortranParser_StringEnd(cmFortranParser* parser)
|
||||
{
|
||||
return parser->TokenString.c_str();
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_StringAppend(cmFortranParser* parser,
|
||||
char c)
|
||||
{
|
||||
parser->TokenString += c;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_SetInInterface(cmFortranParser* parser,
|
||||
bool in)
|
||||
{
|
||||
if(parser->InPPFalseBranch)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
parser->InInterface = in;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
bool cmFortranParser_GetInInterface(cmFortranParser* parser)
|
||||
{
|
||||
return parser->InInterface;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_SetOldStartcond(cmFortranParser* parser,
|
||||
int arg)
|
||||
{
|
||||
parser->OldStartcond = arg;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
int cmFortranParser_GetOldStartcond(cmFortranParser* parser)
|
||||
{
|
||||
return parser->OldStartcond;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_Error(cmFortranParser*, const char*)
|
||||
{
|
||||
// If there is a parser error just ignore it. The source will not
|
||||
// compile and the user will edit it. Then dependencies will have
|
||||
// to be regenerated anyway.
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleUse(cmFortranParser* parser,
|
||||
const char* name)
|
||||
{
|
||||
if(!parser->InPPFalseBranch)
|
||||
{
|
||||
parser->Info.Requires.insert(cmSystemTools::LowerCase(name) );
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleInclude(cmFortranParser* parser,
|
||||
const char* name)
|
||||
{
|
||||
if(parser->InPPFalseBranch)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
// If processing an include statement there must be an open file.
|
||||
assert(!parser->FileStack.empty());
|
||||
|
||||
// Get the directory containing the source in which the include
|
||||
// statement appears. This is always the first search location for
|
||||
// Fortran include files.
|
||||
std::string dir = parser->FileStack.top().Directory;
|
||||
|
||||
// Find the included file. If it cannot be found just ignore the
|
||||
// problem because either the source will not compile or the user
|
||||
// does not care about depending on this included source.
|
||||
std::string fullName;
|
||||
if(parser->FindIncludeFile(dir.c_str(), name, fullName))
|
||||
{
|
||||
// Found the included file. Save it in the set of included files.
|
||||
parser->Info.Includes.insert(fullName);
|
||||
|
||||
// Parse it immediately to translate the source inline.
|
||||
cmFortranParser_FilePush(parser, fullName.c_str());
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleModule(cmFortranParser* parser,
|
||||
const char* name)
|
||||
{
|
||||
if(!parser->InPPFalseBranch && !parser->InInterface)
|
||||
{
|
||||
parser->Info.Provides.insert(cmSystemTools::LowerCase(name));
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleDefine(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
if(!parser->InPPFalseBranch)
|
||||
{
|
||||
parser->PPDefinitions.insert(macro);
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleUndef(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
if(!parser->InPPFalseBranch)
|
||||
{
|
||||
std::set<std::string>::iterator match;
|
||||
match = parser->PPDefinitions.find(macro);
|
||||
if(match != parser->PPDefinitions.end())
|
||||
{
|
||||
parser->PPDefinitions.erase(match);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleIfdef(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
// A new PP branch has been opened
|
||||
parser->SkipToEnd.push(false);
|
||||
|
||||
if (parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch++;
|
||||
}
|
||||
else if(parser->PPDefinitions.find(macro) == parser->PPDefinitions.end())
|
||||
{
|
||||
parser->InPPFalseBranch=1;
|
||||
}
|
||||
else
|
||||
{
|
||||
parser->SkipToEnd.top() = true;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleIfndef(cmFortranParser* parser,
|
||||
const char* macro)
|
||||
{
|
||||
// A new PP branch has been opened
|
||||
parser->SkipToEnd.push(false);
|
||||
|
||||
if (parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch++;
|
||||
}
|
||||
else if(parser->PPDefinitions.find(macro) != parser->PPDefinitions.end())
|
||||
{
|
||||
parser->InPPFalseBranch = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
// ignore other branches
|
||||
parser->SkipToEnd.top() = true;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleIf(cmFortranParser* parser)
|
||||
{
|
||||
/* Note: The current parser is _not_ able to get statements like
|
||||
* #if 0
|
||||
* #if 1
|
||||
* #if MYSMBOL
|
||||
* #if defined(MYSYMBOL)
|
||||
* #if defined(MYSYMBOL) && ...
|
||||
* right. The same for #elif. Thus in
|
||||
* #if SYMBOL_1
|
||||
* ..
|
||||
* #elif SYMBOL_2
|
||||
* ...
|
||||
* ...
|
||||
* #elif SYMBOL_N
|
||||
* ..
|
||||
* #else
|
||||
* ..
|
||||
* #endif
|
||||
* _all_ N+1 branches are considered. If you got something like this
|
||||
* #if defined(MYSYMBOL)
|
||||
* #if !defined(MYSYMBOL)
|
||||
* use
|
||||
* #ifdef MYSYMBOL
|
||||
* #ifndef MYSYMBOL
|
||||
* instead.
|
||||
*/
|
||||
|
||||
// A new PP branch has been opened
|
||||
// Never skip! See note above.
|
||||
parser->SkipToEnd.push(false);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleElif(cmFortranParser* parser)
|
||||
{
|
||||
/* Note: There are parser limitations. See the note at
|
||||
* cmFortranParser_RuleIf(..)
|
||||
*/
|
||||
|
||||
// Always taken unless an #ifdef or #ifndef-branch has been taken
|
||||
// already. If the second condition isn't meet already
|
||||
// (parser->InPPFalseBranch == 0) correct it.
|
||||
if(!parser->SkipToEnd.empty() &&
|
||||
parser->SkipToEnd.top() && !parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch = 1;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleElse(cmFortranParser* parser)
|
||||
{
|
||||
// if the parent branch is false do nothing!
|
||||
if(parser->InPPFalseBranch > 1)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
// parser->InPPFalseBranch is either 0 or 1. We change it depending on
|
||||
// parser->SkipToEnd.top()
|
||||
if(!parser->SkipToEnd.empty() &&
|
||||
parser->SkipToEnd.top())
|
||||
{
|
||||
parser->InPPFalseBranch = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
parser->InPPFalseBranch = 0;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------
|
||||
void cmFortranParser_RuleEndif(cmFortranParser* parser)
|
||||
{
|
||||
if(!parser->SkipToEnd.empty())
|
||||
{
|
||||
parser->SkipToEnd.pop();
|
||||
}
|
||||
|
||||
// #endif doesn't know if there was a "#else" in before, so it
|
||||
// always decreases InPPFalseBranch
|
||||
if(parser->InPPFalseBranch)
|
||||
{
|
||||
parser->InPPFalseBranch--;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue