CMake/Source/cmDependsJavaParserHelper.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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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.
============================================================================*/
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#include "cmDependsJavaParserHelper.h"
#include "cmDependsJavaLexer.h"
#include "cmSystemTools.h"
#include <cmsys/FStream.hxx>
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int cmDependsJava_yyparse( yyscan_t yyscanner );
cmDependsJavaParserHelper::cmDependsJavaParserHelper()
{
this->CurrentDepth = 0;
this->UnionsAvailable = 0;
this->LastClassId = 0;
CurrentClass tl;
tl.Name = "*";
this->ClassStack.push_back(tl);
}
cmDependsJavaParserHelper::~cmDependsJavaParserHelper()
{
this->CleanupParser();
}
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void cmDependsJavaParserHelper::CurrentClass
::AddFileNamesForPrinting(std::vector<std::string> *files,
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const char* prefix, const char* sep)
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{
std::string rname = "";
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if ( prefix )
{
rname += prefix;
rname += sep;
}
rname += this->Name;
files->push_back(rname);
std::vector<CurrentClass>::iterator it;
for ( it = this->NestedClasses->begin();
it != this->NestedClasses->end();
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++ it )
{
it->AddFileNamesForPrinting(files, rname.c_str(), sep);
}
}
void cmDependsJavaParserHelper::DeallocateParserType(char** pt)
{
if (!pt)
{
return;
}
if (!*pt)
{
return;
}
*pt = 0;
this->UnionsAvailable --;
}
void cmDependsJavaParserHelper::AddClassFound(const char* sclass)
{
if( ! sclass )
{
return;
}
std::vector<std::string>::iterator it;
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for ( it = this->ClassesFound.begin();
it != this->ClassesFound.end();
it ++ )
{
if ( *it == sclass )
{
return;
}
}
this->ClassesFound.push_back(sclass);
}
void cmDependsJavaParserHelper::AddPackagesImport(const char* sclass)
{
std::vector<std::string>::iterator it;
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for ( it = this->PackagesImport.begin();
it != this->PackagesImport.end();
it ++ )
{
if ( *it == sclass )
{
return;
}
}
this->PackagesImport.push_back(sclass);
}
void cmDependsJavaParserHelper::SafePrintMissing(const char* str,
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int line, int cnt)
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{
if ( str )
{
std::cout << line << " String " << cnt << " exists: ";
unsigned int cc;
for ( cc = 0; cc < strlen(str); cc ++ )
{
unsigned char ch = str[cc];
if ( ch >= 32 && ch <= 126 )
{
std::cout << (char)ch;
}
else
{
std::cout << "<" << (int)ch << ">";
break;
}
}
std::cout << "- " << strlen(str) << std::endl;
}
}
void cmDependsJavaParserHelper::Print(const char* place, const char* str)
{
if ( this->Verbose )
{
std::cout << "[" << place << "=" << str << "]" << std::endl;
}
}
void cmDependsJavaParserHelper::CombineUnions(char** out,
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const char* in1, char** in2,
const char* sep)
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{
size_t len = 1;
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if ( in1 )
{
len += strlen(in1);
}
if ( *in2 )
{
len += strlen(*in2);
}
if ( sep )
{
len += strlen(sep);
}
*out = new char [ len ];
*out[0] = 0;
if ( in1 )
{
strcat(*out, in1);
}
if ( sep )
{
strcat(*out, sep);
}
if ( *in2 )
{
strcat(*out, *in2);
}
if ( *in2 )
{
this->DeallocateParserType(in2);
}
this->UnionsAvailable ++;
}
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void cmDependsJavaParserHelper
::CheckEmpty(int line, int cnt, cmDependsJavaParserHelper::ParserType* pt)
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{
int cc;
int kk = -cnt + 1;
for ( cc = 1; cc <= cnt; cc ++)
{
cmDependsJavaParserHelper::ParserType* cpt = pt + kk;
this->SafePrintMissing(cpt->str, line, cc);
kk ++;
}
}
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void cmDependsJavaParserHelper
::PrepareElement(cmDependsJavaParserHelper::ParserType* me)
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{
// Inititalize self
me->str = 0;
}
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void cmDependsJavaParserHelper
::AllocateParserType(cmDependsJavaParserHelper::ParserType* pt,
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const char* str, int len)
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{
pt->str = 0;
if ( len == 0 )
{
len = (int)strlen(str);
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}
if ( len == 0 )
{
return;
}
this->UnionsAvailable ++;
pt->str = new char[ len + 1 ];
strncpy(pt->str, str, len);
pt->str[len] = 0;
this->Allocates.push_back(pt->str);
}
void cmDependsJavaParserHelper::StartClass(const char* cls)
{
CurrentClass cl;
cl.Name = cls;
this->ClassStack.push_back(cl);
this->CurrentDepth ++;
}
void cmDependsJavaParserHelper::EndClass()
{
CurrentClass* parent = 0;
CurrentClass* current = 0;
if (!this->ClassStack.empty())
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{
current = &(*(this->ClassStack.end() - 1));
if ( this->ClassStack.size() > 1 )
{
parent = &(*(this->ClassStack.end() - 2));
}
}
if ( current == 0 )
{
std::cerr << "Error when parsing. Current class is null" << std::endl;
abort();
}
if ( parent == 0 )
{
std::cerr << "Error when parsing. Parent class is null" << std::endl;
abort();
}
this->CurrentDepth --;
parent->NestedClasses->push_back(*current);
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this->ClassStack.erase(this->ClassStack.end()-1, this->ClassStack.end());
}
void cmDependsJavaParserHelper::PrintClasses()
{
if (this->ClassStack.empty())
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{
std::cerr << "Error when parsing. No classes on class stack" << std::endl;
abort();
}
std::vector<std::string> files = this->GetFilesProduced();
std::vector<std::string>::iterator sit;
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for ( sit = files.begin();
sit != files.end();
++ sit )
{
std::cout << " " << *sit << ".class" << std::endl;
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}
}
std::vector<std::string> cmDependsJavaParserHelper::GetFilesProduced()
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{
std::vector<std::string> files;
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CurrentClass* toplevel = &(*(this->ClassStack.begin()));
std::vector<CurrentClass>::iterator it;
for ( it = toplevel->NestedClasses->begin();
it != toplevel->NestedClasses->end();
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++ it )
{
it->AddFileNamesForPrinting(&files, 0, "$");
}
return files;
}
int cmDependsJavaParserHelper::ParseString(const char* str, int verb)
{
if ( !str)
{
return 0;
}
this->Verbose = verb;
this->InputBuffer = str;
this->InputBufferPos = 0;
this->CurrentLine = 0;
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yyscan_t yyscanner;
cmDependsJava_yylex_init(&yyscanner);
cmDependsJava_yyset_extra(this, yyscanner);
int res = cmDependsJava_yyparse(yyscanner);
cmDependsJava_yylex_destroy(yyscanner);
if ( res != 0 )
{
std::cout << "JP_Parse returned: " << res << std::endl;
return 0;
}
if ( verb )
{
if (!this->CurrentPackage.empty())
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{
std::cout << "Current package is: " <<
this->CurrentPackage << std::endl;
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}
std::cout << "Imports packages:";
if (!this->PackagesImport.empty())
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{
std::vector<std::string>::iterator it;
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for ( it = this->PackagesImport.begin();
it != this->PackagesImport.end();
++ it )
{
std::cout << " " << *it;
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}
}
std::cout << std::endl;
std::cout << "Depends on:";
if (!this->ClassesFound.empty())
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{
std::vector<std::string>::iterator it;
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for ( it = this->ClassesFound.begin();
it != this->ClassesFound.end();
++ it )
{
std::cout << " " << *it;
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}
}
std::cout << std::endl;
std::cout << "Generated files:" << std::endl;
this->PrintClasses();
if ( this->UnionsAvailable != 0 )
{
std::cout << "There are still " <<
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this->UnionsAvailable << " unions available" << std::endl;
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}
}
this->CleanupParser();
return 1;
}
void cmDependsJavaParserHelper::CleanupParser()
{
std::vector<char*>::iterator it;
for ( it = this->Allocates.begin();
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it != this->Allocates.end();
++ it )
{
delete [] *it;
}
this->Allocates.erase(this->Allocates.begin(),
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this->Allocates.end());
}
int cmDependsJavaParserHelper::LexInput(char* buf, int maxlen)
{
if ( maxlen < 1 )
{
return 0;
}
if ( this->InputBufferPos < this->InputBuffer.size() )
{
buf[0] = this->InputBuffer[ this->InputBufferPos++ ];
if ( buf[0] == '\n' )
{
this->CurrentLine ++;
}
return(1);
}
else
{
buf[0] = '\n';
return( 0 );
}
}
void cmDependsJavaParserHelper::Error(const char* str)
{
unsigned long pos = static_cast<unsigned long>(this->InputBufferPos);
fprintf(stderr, "JPError: %s (%lu / Line: %d)\n",
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str, pos, this->CurrentLine);
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int cc;
std::cerr << "String: [";
for ( cc = 0;
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cc < 30 && *(this->InputBuffer.c_str() + this->InputBufferPos + cc);
cc ++ )
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{
std::cerr << *(this->InputBuffer.c_str() + this->InputBufferPos + cc);
}
std::cerr << "]" << std::endl;
}
void cmDependsJavaParserHelper::UpdateCombine(const char* str1,
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const char* str2)
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{
if ( this->CurrentCombine == "" && str1 != 0)
{
this->CurrentCombine = str1;
}
this->CurrentCombine += ".";
this->CurrentCombine += str2;
}
int cmDependsJavaParserHelper::ParseFile(const char* file)
{
if ( !cmSystemTools::FileExists(file))
{
return 0;
}
cmsys::ifstream ifs(file);
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if ( !ifs )
{
return 0;
}
std::string fullfile = "";
std::string line;
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while ( cmSystemTools::GetLineFromStream(ifs, line) )
{
fullfile += line + "\n";
}
return this->ParseString(fullfile.c_str(), 0);
}