CMake/Source/cmDependsJavaParserHelper.cxx

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 19:01:08 +00:00
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmDependsJavaParserHelper.h"
#include "cmDependsJavaLexer.h"
#include "cmSystemTools.h"
#include "cmsys/FStream.hxx"
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
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int cmDependsJava_yyparse(yyscan_t yyscanner);
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cmDependsJavaParserHelper::cmDependsJavaParserHelper()
{
this->CurrentDepth = 0;
this->UnionsAvailable = 0;
this->LastClassId = 0;
CurrentClass tl;
tl.Name = "*";
this->ClassStack.push_back(tl);
}
cmDependsJavaParserHelper::~cmDependsJavaParserHelper()
{
this->CleanupParser();
}
void cmDependsJavaParserHelper::CurrentClass::AddFileNamesForPrinting(
std::vector<std::string>* files, const char* prefix, const char* sep) const
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{
std::string rname;
if (prefix) {
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rname += prefix;
rname += sep;
}
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rname += this->Name;
files->push_back(rname);
for (CurrentClass const& nc : this->NestedClasses) {
nc.AddFileNamesForPrinting(files, rname.c_str(), sep);
}
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}
void cmDependsJavaParserHelper::DeallocateParserType(char** pt)
{
if (!pt) {
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return;
}
if (!*pt) {
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return;
}
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*pt = nullptr;
this->UnionsAvailable--;
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}
void cmDependsJavaParserHelper::AddClassFound(const char* sclass)
{
if (!sclass) {
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return;
}
for (std::string const& cf : this->ClassesFound) {
if (cf == sclass) {
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return;
}
}
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this->ClassesFound.push_back(sclass);
}
void cmDependsJavaParserHelper::AddPackagesImport(const char* sclass)
{
for (std::string const& pi : this->PackagesImport) {
if (pi == sclass) {
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return;
}
}
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this->PackagesImport.push_back(sclass);
}
void cmDependsJavaParserHelper::SafePrintMissing(const char* str, int line,
int cnt)
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{
if (str) {
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std::cout << line << " String " << cnt << " exists: ";
unsigned int cc;
for (cc = 0; cc < strlen(str); cc++) {
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unsigned char ch = str[cc];
if (ch >= 32 && ch <= 126) {
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std::cout << static_cast<char>(ch);
} else {
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std::cout << "<" << static_cast<int>(ch) << ">";
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break;
}
}
std::cout << "- " << strlen(str) << std::endl;
}
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}
void cmDependsJavaParserHelper::Print(const char* place, const char* str)
{
if (this->Verbose) {
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std::cout << "[" << place << "=" << str << "]" << std::endl;
}
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}
void cmDependsJavaParserHelper::CombineUnions(char** out, const char* in1,
char** in2, const char* sep)
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{
size_t len = 1;
if (in1) {
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len += strlen(in1);
}
if (*in2) {
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len += strlen(*in2);
}
if (sep) {
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len += strlen(sep);
}
*out = new char[len];
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*out[0] = 0;
if (in1) {
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strcat(*out, in1);
}
if (sep) {
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strcat(*out, sep);
}
if (*in2) {
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strcat(*out, *in2);
}
if (*in2) {
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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++) {
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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
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me->str = nullptr;
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}
void cmDependsJavaParserHelper::AllocateParserType(
cmDependsJavaParserHelper::ParserType* pt, const char* str, int len)
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{
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pt->str = nullptr;
if (len == 0) {
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len = static_cast<int>(strlen(str));
}
if (len == 0) {
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return;
}
this->UnionsAvailable++;
pt->str = new char[len + 1];
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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++;
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}
void cmDependsJavaParserHelper::EndClass()
{
if (this->ClassStack.empty()) {
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std::cerr << "Error when parsing. Current class is null" << std::endl;
abort();
}
if (this->ClassStack.size() <= 1) {
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std::cerr << "Error when parsing. Parent class is null" << std::endl;
abort();
}
CurrentClass& current = this->ClassStack.back();
CurrentClass& parent = this->ClassStack[this->ClassStack.size() - 2];
this->CurrentDepth--;
parent.NestedClasses.push_back(current);
this->ClassStack.pop_back();
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}
void cmDependsJavaParserHelper::PrintClasses()
{
if (this->ClassStack.empty()) {
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std::cerr << "Error when parsing. No classes on class stack" << std::endl;
abort();
}
for (std::string const& f : this->GetFilesProduced()) {
std::cout << " " << f << ".class" << std::endl;
}
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}
std::vector<std::string> cmDependsJavaParserHelper::GetFilesProduced()
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{
std::vector<std::string> files;
CurrentClass const& toplevel = this->ClassStack.front();
for (CurrentClass const& nc : toplevel.NestedClasses) {
nc.AddFileNamesForPrinting(&files, nullptr, "$");
}
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return files;
}
int cmDependsJavaParserHelper::ParseString(const char* str, int verb)
{
if (!str) {
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return 0;
}
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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) {
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std::cout << "JP_Parse returned: " << res << std::endl;
return 0;
}
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if (verb) {
if (!this->CurrentPackage.empty()) {
std::cout << "Current package is: " << this->CurrentPackage << std::endl;
}
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std::cout << "Imports packages:";
if (!this->PackagesImport.empty()) {
std::vector<std::string>::iterator it;
for (it = this->PackagesImport.begin(); it != this->PackagesImport.end();
++it) {
std::cout << " " << *it;
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}
}
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std::cout << std::endl;
std::cout << "Depends on:";
if (!this->ClassesFound.empty()) {
for (std::string const& cf : this->ClassesFound) {
std::cout << " " << cf;
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}
}
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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 " << this->UnionsAvailable
<< " unions available" << std::endl;
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}
}
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this->CleanupParser();
return 1;
}
void cmDependsJavaParserHelper::CleanupParser()
{
for (char* allocate : this->Allocates) {
delete[] allocate;
}
this->Allocates.erase(this->Allocates.begin(), this->Allocates.end());
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}
int cmDependsJavaParserHelper::LexInput(char* buf, int maxlen)
{
if (maxlen < 1) {
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return 0;
}
if (this->InputBufferPos < this->InputBuffer.size()) {
buf[0] = this->InputBuffer[this->InputBufferPos++];
if (buf[0] == '\n') {
this->CurrentLine++;
}
return 1;
}
buf[0] = '\n';
return 0;
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}
void cmDependsJavaParserHelper::Error(const char* str)
{
unsigned long pos = static_cast<unsigned long>(this->InputBufferPos);
fprintf(stderr, "JPError: %s (%lu / Line: %d)\n", str, pos,
this->CurrentLine);
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int cc;
std::cerr << "String: [";
for (cc = 0;
cc < 30 && *(this->InputBuffer.c_str() + this->InputBufferPos + cc);
cc++) {
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std::cerr << *(this->InputBuffer.c_str() + this->InputBufferPos + cc);
}
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std::cerr << "]" << std::endl;
}
void cmDependsJavaParserHelper::UpdateCombine(const char* str1,
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const char* str2)
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{
if (this->CurrentCombine.empty() && str1 != nullptr) {
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this->CurrentCombine = str1;
}
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this->CurrentCombine += ".";
this->CurrentCombine += str2;
}
int cmDependsJavaParserHelper::ParseFile(const char* file)
{
if (!cmSystemTools::FileExists(file)) {
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return 0;
}
cmsys::ifstream ifs(file);
if (!ifs) {
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return 0;
}
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std::string fullfile;
std::string line;
while (cmSystemTools::GetLineFromStream(ifs, line)) {
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fullfile += line + "\n";
}
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return this->ParseString(fullfile.c_str(), 0);
}