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clangproxy.cpp
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clangproxy.cpp
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/*
* Communication proxy to libclang-c
*/
#include <sdk.h>
#include "clangproxy.h"
#include <clang-c/Index.h>
#include <wx/tokenzr.h>
#ifndef CB_PRECOMP
#include <cbexception.h> // for cbThrow()
#include <algorithm>
#endif // CB_PRECOMP
#include "tokendatabase.h"
static void ClInclusionVisitor(CXFile included_file, CXSourceLocation* inclusion_stack, unsigned include_len, CXClientData client_data);
static CXChildVisitResult ClAST_Visitor(CXCursor cursor, CXCursor parent, CXClientData client_data);
class TranslationUnit
{
public:
TranslationUnit(const wxString& filename, const std::vector<const char*>& args, CXIndex clIndex, TokenDatabase* database) :
m_LastCC(nullptr),
m_LastPos(-1, -1)
{
// TODO: check and handle error conditions
m_ClTranslUnit = clang_parseTranslationUnit( clIndex, filename.ToUTF8().data(), args.empty() ? nullptr : &args[0], args.size(), nullptr, 0,
clang_defaultEditingTranslationUnitOptions() | CXTranslationUnit_IncludeBriefCommentsInCodeCompletion | CXTranslationUnit_DetailedPreprocessingRecord );
std::pair<TranslationUnit*, TokenDatabase*> visitorData = std::make_pair(this, database);
clang_getInclusions(m_ClTranslUnit, ClInclusionVisitor, &visitorData);
m_Files.reserve(1024);
m_Files.push_back(database->GetFilenameId(filename));
std::sort(m_Files.begin(), m_Files.end());
std::unique(m_Files.begin(), m_Files.end());
#if __cplusplus >= 201103L
m_Files.shrink_to_fit();
#else
std::vector<FileId>(m_Files).swap(m_Files);
#endif
Reparse(0, nullptr); // seems to improve performance for some reason?
clang_visitChildren(clang_getTranslationUnitCursor(m_ClTranslUnit), ClAST_Visitor, database);
database->Shrink();
}
// move ctor
#if __cplusplus >= 201103L
TranslationUnit(TranslationUnit&& other) :
m_Files(std::move(other.m_Files)),
m_ClTranslUnit(other.m_ClTranslUnit),
m_LastCC(nullptr),
m_LastPos(-1, -1)
{
other.m_ClTranslUnit = nullptr;
}
#else
TranslationUnit(const TranslationUnit& other) :
m_ClTranslUnit(other.m_ClTranslUnit),
m_LastCC(nullptr),
m_LastPos(-1, -1)
{
m_Files.swap(const_cast<TranslationUnit&>(other).m_Files);
const_cast<TranslationUnit&>(other).m_ClTranslUnit = nullptr;
}
#endif
~TranslationUnit()
{
if (m_LastCC)
clang_disposeCodeCompleteResults(m_LastCC);
if (m_ClTranslUnit)
clang_disposeTranslationUnit(m_ClTranslUnit);
}
void AddInclude(FileId fId)
{
m_Files.push_back(fId);
}
bool Contains(FileId fId)
{
//return std::binary_search(m_Files.begin(), m_Files.begin() + std::min(fId + 1, m_Files.size()), fId);
return std::binary_search(m_Files.begin(), m_Files.end(), fId);
}
// note that complete_line and complete_column are 1 index, not 0 index!
CXCodeCompleteResults* CodeCompleteAt( const char* complete_filename, unsigned complete_line,
unsigned complete_column, struct CXUnsavedFile* unsaved_files,
unsigned num_unsaved_files )
{
if (m_LastPos.Equals(complete_line, complete_column))
return m_LastCC;
if (m_LastCC)
clang_disposeCodeCompleteResults(m_LastCC);
m_LastCC = clang_codeCompleteAt(m_ClTranslUnit, complete_filename, complete_line, complete_column, unsaved_files,
num_unsaved_files, clang_defaultCodeCompleteOptions() | CXCodeComplete_IncludeCodePatterns | CXCodeComplete_IncludeBriefComments);
m_LastPos.Set(complete_line, complete_column);
return m_LastCC;
}
const CXCompletionResult* GetCCResult(unsigned index)
{
if (m_LastCC && index < m_LastCC->NumResults)
return m_LastCC->Results + index;
return nullptr;
}
CXCursor GetTokensAt(const wxString& filename, int line, int column)
{
return clang_getCursor(m_ClTranslUnit, clang_getLocation(m_ClTranslUnit, clang_getFile(m_ClTranslUnit, filename.ToUTF8().data()), line, column));
}
void Reparse(unsigned num_unsaved_files, struct CXUnsavedFile* unsaved_files)
{
// TODO: check and handle error conditions
clang_reparseTranslationUnit(m_ClTranslUnit, num_unsaved_files, unsaved_files, clang_defaultReparseOptions(m_ClTranslUnit));
}
void GetDiagnostics(std::vector<ClDiagnostic>& diagnostics)
{
CXDiagnosticSet diagSet = clang_getDiagnosticSetFromTU(m_ClTranslUnit);
ExpandDiagnosticSet(diagSet, diagnostics);
clang_disposeDiagnosticSet(diagSet);
}
private:
#if __cplusplus >= 201103L
// copying not allowed (we can move)
TranslationUnit(const TranslationUnit& /*other*/) { cbThrow(wxT("Illegal copy attempted of TranslationUnit object.")); }
#endif
void ExpandDiagnosticSet(CXDiagnosticSet diagSet, std::vector<ClDiagnostic>& diagnostics)
{
size_t numDiags = clang_getNumDiagnosticsInSet(diagSet);
for (size_t i = 0; i < numDiags; ++i)
{
CXDiagnostic diag = clang_getDiagnosticInSet(diagSet, i);
//ExpandDiagnosticSet(clang_getChildDiagnostics(diag), diagnostics);
size_t numRnges = clang_getDiagnosticNumRanges(diag);
unsigned rgStart = 0;
unsigned rgEnd = 0;
for (size_t j = 0; j < numRnges; ++j) // often no range data (clang bug?)
{
CXSourceRange range = clang_getDiagnosticRange(diag, j);
CXSourceLocation loc = clang_getRangeStart(range);
clang_getSpellingLocation(loc, nullptr, nullptr, &rgStart, nullptr);
loc = clang_getRangeEnd(range);
clang_getSpellingLocation(loc, nullptr, nullptr, &rgEnd, nullptr);
if (rgStart != rgEnd)
break;
}
if (rgStart == rgEnd) // check if there is FixIt data for the range
{
numRnges = clang_getDiagnosticNumFixIts(diag);
for (size_t j = 0; j < numRnges; ++j)
{
CXSourceRange range;
clang_getDiagnosticFixIt(diag, j, &range);
CXSourceLocation loc = clang_getRangeStart(range);
clang_getSpellingLocation(loc, nullptr, nullptr, &rgStart, nullptr);
loc = clang_getRangeEnd(range);
clang_getSpellingLocation(loc, nullptr, nullptr, &rgEnd, nullptr);
if (rgStart != rgEnd)
break;
}
}
CXSourceLocation loc = clang_getDiagnosticLocation(diag);
if (rgEnd == 0) // still no range -> use the range of the current token
{
CXCursor token = clang_getCursor(m_ClTranslUnit, loc);
CXSourceRange range = clang_getCursorExtent(token);
CXSourceLocation rgLoc = clang_getRangeStart(range);
clang_getSpellingLocation(rgLoc, nullptr, nullptr, &rgStart, nullptr);
rgLoc = clang_getRangeEnd(range);
clang_getSpellingLocation(rgLoc, nullptr, nullptr, &rgEnd, nullptr);
}
unsigned line;
unsigned column;
CXFile file;
clang_getSpellingLocation(loc, &file, &line, &column, nullptr);
if (rgEnd < column || rgStart > column) // out of bounds?
rgStart = rgEnd = column;
CXString str = clang_getFileName(file);
wxString flName = wxString::FromUTF8(clang_getCString(str));
clang_disposeString(str);
str = clang_formatDiagnostic(diag, 0);
diagnostics.push_back(ClDiagnostic(line, rgStart, rgEnd, (clang_getDiagnosticSeverity(diag) >= CXDiagnostic_Error ? sError : sWarning), flName, wxString::FromUTF8(clang_getCString(str))));
clang_disposeString(str);
clang_disposeDiagnostic(diag);
}
}
std::vector<FileId> m_Files;
CXTranslationUnit m_ClTranslUnit;
CXCodeCompleteResults* m_LastCC;
struct FilePos
{
FilePos(unsigned ln, unsigned col) :
line(ln), column(col) {}
void Set(unsigned ln, unsigned col)
{
line = ln;
column = col;
}
bool Equals(unsigned ln, unsigned col)
{
return (line == ln && column == col);
}
unsigned line;
unsigned column;
} m_LastPos;
};
static void ClInclusionVisitor(CXFile included_file, CXSourceLocation* WXUNUSED(inclusion_stack), unsigned WXUNUSED(include_len), CXClientData client_data)
{
CXString filename = clang_getFileName(included_file);
wxFileName inclFile(wxString::FromUTF8(clang_getCString(filename)));
if (inclFile.MakeAbsolute())
{
std::pair<TranslationUnit*, TokenDatabase*>* clTranslUnit = static_cast<std::pair<TranslationUnit*, TokenDatabase*>*>(client_data);
clTranslUnit->first->AddInclude(clTranslUnit->second->GetFilenameId(inclFile.GetFullPath()));
}
clang_disposeString(filename);
}
static unsigned HashToken(CXCompletionString token, wxString& identifier)
{
unsigned hVal = 2166136261u;
size_t upperBound = clang_getNumCompletionChunks(token);
for (size_t i = 0; i < upperBound; ++i)
{
CXString str = clang_getCompletionChunkText(token, i);
const char* pCh = clang_getCString(str);
if (clang_getCompletionChunkKind(token, i) == CXCompletionChunk_TypedText)
identifier = wxString::FromUTF8(*pCh =='~' ? pCh + 1 : pCh);
for (; *pCh; ++pCh)
{
hVal ^= *pCh;
hVal *= 16777619u;
}
clang_disposeString(str);
}
return hVal;
}
static CXChildVisitResult ClAST_Visitor(CXCursor cursor, CXCursor WXUNUSED(parent), CXClientData client_data)
{
CXChildVisitResult ret = CXChildVisit_Break; // should never happen
switch (cursor.kind)
{
case CXCursor_StructDecl:
case CXCursor_UnionDecl:
case CXCursor_ClassDecl:
case CXCursor_EnumDecl:
case CXCursor_Namespace:
case CXCursor_ClassTemplate:
ret = CXChildVisit_Recurse;
break;
case CXCursor_FieldDecl:
case CXCursor_EnumConstantDecl:
case CXCursor_FunctionDecl:
case CXCursor_VarDecl:
case CXCursor_ParmDecl:
case CXCursor_TypedefDecl:
case CXCursor_CXXMethod:
case CXCursor_Constructor:
case CXCursor_Destructor:
case CXCursor_FunctionTemplate:
//case CXCursor_MacroDefinition: // this can crash Clang on Windows
ret = CXChildVisit_Continue;
break;
default:
return CXChildVisit_Recurse;
}
CXSourceLocation loc = clang_getCursorLocation(cursor);
CXFile clFile;
unsigned line, col;
clang_getSpellingLocation(loc, &clFile, &line, &col, nullptr);
CXString str = clang_getFileName(clFile);
wxString filename = wxString::FromUTF8(clang_getCString(str));
clang_disposeString(str);
if (filename.IsEmpty())
return ret;
CXCompletionString token = clang_getCursorCompletionString(cursor);
wxString identifier;
unsigned tokenHash = HashToken(token, identifier);
if (!identifier.IsEmpty())
{
TokenDatabase* database = static_cast<TokenDatabase*>(client_data);
database->InsertToken(identifier, AbstractToken(database->GetFilenameId(filename), line, col, tokenHash));
}
return ret;
}
namespace HTML_Writer
{
static wxString Escape(const wxString& text)
{
wxString html;
html.reserve(text.size());
for (wxString::const_iterator itr = text.begin();
itr != text.end(); ++itr)
{
switch (*itr)
{
case wxT('&'): html += wxT("&"); break;
case wxT('\"'): html += wxT("""); break;
case wxT('\''): html += wxT("'"); break;
case wxT('<'): html += wxT("<"); break;
case wxT('>'): html += wxT(">"); break;
case wxT('\n'): html += wxT("<br>"); break;
default: html += *itr; break;
}
}
return html;
}
static wxString Colourise(const wxString& text, const wxString& colour)
{
return wxT("<font color=\"") + colour + wxT("\">") + text + wxT("</font>");
}
static wxString SyntaxHl(const wxString& code, const std::vector<wxString>& cppKeywords) // C++ style (ish)
{
wxString html;
html.reserve(code.size());
int stRg = 0;
int style = wxSCI_C_DEFAULT;
const int codeLen = code.Length();
for (int enRg = 0; enRg <= codeLen; ++enRg)
{
wxChar ch = (enRg < codeLen ? code[enRg] : wxT('\0'));
wxChar nextCh = (enRg < codeLen - 1 ? code[enRg + 1] : wxT('\0'));
switch (style)
{
default:
case wxSCI_C_DEFAULT:
{
if (wxIsalpha(ch) || ch == wxT('_'))
style = wxSCI_C_IDENTIFIER;
else if (wxIsdigit(ch))
style = wxSCI_C_NUMBER;
else if (ch == wxT('"'))
style = wxSCI_C_STRING;
else if (ch == wxT('\''))
style = wxSCI_C_CHARACTER;
else if (ch == wxT('/') && nextCh == wxT('/'))
style = wxSCI_C_COMMENTLINE;
else if (wxIspunct(ch))
style = wxSCI_C_OPERATOR;
else
break;
if (stRg != enRg)
{
html += Escape(code.Mid(stRg, enRg - stRg));
stRg = enRg;
}
break;
}
case wxSCI_C_IDENTIFIER:
{
if (wxIsalnum(ch) || ch == wxT('_'))
break;
if (stRg != enRg)
{
const wxString& tkn = code.Mid(stRg, enRg - stRg);
if (std::binary_search(cppKeywords.begin(), cppKeywords.end(), tkn))
html += wxT("<b>") + Colourise(Escape(tkn), wxT("#00008b")) + wxT("</b>"); // DarkBlue
else
html += Escape(tkn);
stRg = enRg;
--enRg;
}
style = wxSCI_C_DEFAULT;
break;
}
case wxSCI_C_NUMBER:
{
if (wxIsalnum(ch))
break;
if (stRg != enRg)
{
html += Colourise(Escape(code.Mid(stRg, enRg - stRg)), wxT("Magenta"));
stRg = enRg;
--enRg;
}
style = wxSCI_C_DEFAULT;
break;
}
case wxSCI_C_STRING:
{
if (ch == wxT('\\'))
{
if (nextCh != wxT('\n'))
++enRg;
break;
}
else if (ch && ch != wxT('"') && ch != wxT('\n'))
break;
if (stRg != enRg)
{
if (ch == wxT('"'))
++enRg;
html += Colourise(Escape(code.Mid(stRg, enRg - stRg)), wxT("#0000cd")); // MediumBlue
stRg = enRg;
--enRg;
}
style = wxSCI_C_DEFAULT;
break;
}
case wxSCI_C_CHARACTER:
{
if (ch == wxT('\\'))
{
if (nextCh != wxT('\n'))
++enRg;
break;
}
else if (ch && ch != wxT('\'') && ch != wxT('\n'))
break;
if (stRg != enRg)
{
if (ch == wxT('\''))
++enRg;
html += Colourise(Escape(code.Mid(stRg, enRg - stRg)), wxT("GoldenRod"));
stRg = enRg;
--enRg;
}
style = wxSCI_C_DEFAULT;
break;
}
case wxSCI_C_COMMENTLINE:
{
if (ch && ch != wxT('\n'))
break;
if (stRg != enRg)
{
html += Colourise(Escape(code.Mid(stRg, enRg - stRg)), wxT("#778899")); // LightSlateGray
stRg = enRg;
}
style = wxSCI_C_DEFAULT;
break;
}
case wxSCI_C_OPERATOR:
{
if (wxIspunct(ch) && ch != wxT('"') && ch != wxT('\'') && ch != wxT('_'))
break;
if (stRg != enRg)
{
html += Colourise(Escape(code.Mid(stRg, enRg - stRg)), wxT("Red"));
stRg = enRg;
--enRg;
}
style = wxSCI_C_DEFAULT;
break;
}
}
}
return html;
}
static void FormatDocumentation(CXComment comment, wxString& doc, const std::vector<wxString>& cppKeywords)
{
size_t numChildren = clang_Comment_getNumChildren(comment);
for (size_t childIdx = 0; childIdx < numChildren; ++childIdx)
{
CXComment cmt = clang_Comment_getChild(comment, childIdx);
switch (clang_Comment_getKind(cmt))
{
case CXComment_Null:
break;
case CXComment_Text:
{
CXString str = clang_TextComment_getText(cmt);
doc += Escape(wxString::FromUTF8(clang_getCString(str)));
clang_disposeString(str);
break;
}
case CXComment_InlineCommand:
{
size_t numArgs = clang_InlineCommandComment_getNumArgs(cmt);
wxString argText;
for (size_t argIdx = 0; argIdx < numArgs; ++argIdx)
{
CXString str = clang_InlineCommandComment_getArgText(cmt, argIdx);
argText += Escape(wxString::FromUTF8(clang_getCString(str)));
clang_disposeString(str);
}
CXCommentInlineCommandRenderKind cmtFont = clang_InlineCommandComment_getRenderKind(cmt);
switch (cmtFont)
{
default:
case CXCommentInlineCommandRenderKind_Normal:
doc += argText;
break;
case CXCommentInlineCommandRenderKind_Bold:
doc += wxT("<b>") + argText + wxT("</b>");
break;
case CXCommentInlineCommandRenderKind_Monospaced:
doc += wxT("<tt>") + argText + wxT("</tt>");
break;
case CXCommentInlineCommandRenderKind_Emphasized:
doc += wxT("<em>") + argText + wxT("</em>");
break;
}
break;
}
case CXComment_HTMLStartTag:
case CXComment_HTMLEndTag:
{
CXString str = clang_HTMLTagComment_getAsString(cmt);
doc += wxString::FromUTF8(clang_getCString(str));
clang_disposeString(str);
break;
}
case CXComment_Paragraph:
if (!clang_Comment_isWhitespace(cmt))
{
doc += wxT("<p>");
FormatDocumentation(cmt, doc, cppKeywords);
doc += wxT("</p>");
}
break;
case CXComment_BlockCommand: // TODO: follow the command's instructions
FormatDocumentation(cmt, doc, cppKeywords);
break;
case CXComment_ParamCommand: // TODO
case CXComment_TParamCommand: // TODO
break;
case CXComment_VerbatimBlockCommand:
doc += wxT("<table cellspacing=\"0\" cellpadding=\"1\" bgcolor=\"black\" width=\"100%\"><tr><td><table bgcolor=\"white\" width=\"100%\"><tr><td><pre>");
FormatDocumentation(cmt, doc, cppKeywords);
doc += wxT("</pre></td></tr></table></td></tr></table>");
break;
case CXComment_VerbatimBlockLine:
{
CXString str = clang_VerbatimBlockLineComment_getText(cmt);
wxString codeLine = wxString::FromUTF8(clang_getCString(str));
clang_disposeString(str);
int endIdx = codeLine.Find(wxT("*/")); // clang will throw in the rest of the file when this happens
if (endIdx != wxNOT_FOUND)
{
endIdx = codeLine.Truncate(endIdx).Find(wxT("\\endcode")); // try to save a bit of grace, and recover what we can
if (endIdx == wxNOT_FOUND)
{
endIdx = codeLine.Find(wxT("@endcode"));
if (endIdx != wxNOT_FOUND)
codeLine.Truncate(endIdx);
}
else
codeLine.Truncate(endIdx);
doc += SyntaxHl(codeLine, cppKeywords) + wxT("<br><font color=\"red\"><em>__clang_doxygen_parsing_error__</em></font><br>");
return; // abort
}
doc += SyntaxHl(codeLine, cppKeywords) + wxT("<br>");
break;
}
case CXComment_VerbatimLine:
{
CXString str = clang_VerbatimLineComment_getText(cmt);
doc += wxT("<pre>") + Escape(wxString::FromUTF8(clang_getCString(str))) + wxT("</pre>"); // TODO: syntax highlight
clang_disposeString(str);
break;
}
case CXComment_FullComment: // ignore?
default:
break;
}
}
}
}
ClangProxy::ClangProxy(TokenDatabase& database, const std::vector<wxString>& cppKeywords):
m_Database(database),
m_CppKeywords(cppKeywords)
{
m_ClIndex = clang_createIndex(0, 0);
}
ClangProxy::~ClangProxy()
{
m_TranslUnits.clear();
clang_disposeIndex(m_ClIndex);
}
void ClangProxy::CreateTranslationUnit(const wxString& filename, const wxString& commands)
{
wxStringTokenizer tokenizer(commands);
std::vector<wxString> unknownOptions;
unknownOptions.push_back(wxT("-Wno-unused-local-typedefs"));
unknownOptions.push_back(wxT("-Wzero-as-null-pointer-constant"));
std::sort(unknownOptions.begin(), unknownOptions.end());
std::vector<wxCharBuffer> argsBuffer;
std::vector<const char*> args;
while (tokenizer.HasMoreTokens())
{
const wxString& compilerSwitch = tokenizer.GetNextToken();
if (std::binary_search(unknownOptions.begin(), unknownOptions.end(), compilerSwitch))
continue;
argsBuffer.push_back(compilerSwitch.ToUTF8());
args.push_back(argsBuffer.back().data());
}
m_TranslUnits.push_back(TranslationUnit(filename, args, m_ClIndex, &m_Database));
}
int ClangProxy::GetTranslationUnitId(FileId fId)
{
for (size_t i = 0; i < m_TranslUnits.size(); ++i)
{
if (m_TranslUnits[i].Contains(fId))
return i;
}
return wxNOT_FOUND;
}
int ClangProxy::GetTranslationUnitId(const wxString& filename)
{
return GetTranslationUnitId(m_Database.GetFilenameId(filename));
}
static TokenCategory GetTokenCategory(CXCursorKind kind, CX_CXXAccessSpecifier access = CX_CXXInvalidAccessSpecifier)
{
switch (kind)
{
case CXCursor_StructDecl:
case CXCursor_UnionDecl:
case CXCursor_ClassDecl:
case CXCursor_ClassTemplate:
switch (access)
{
case CX_CXXPublic:
return tcClassPublic;
case CX_CXXProtected:
return tcClassProtected;
case CX_CXXPrivate:
return tcClassPrivate;
default:
case CX_CXXInvalidAccessSpecifier:
return tcClass;
}
case CXCursor_Constructor:
switch (access)
{
default:
case CX_CXXInvalidAccessSpecifier:
case CX_CXXPublic:
return tcCtorPublic;
case CX_CXXProtected:
return tcCtorProtected;
case CX_CXXPrivate:
return tcCtorPrivate;
}
case CXCursor_Destructor:
switch (access)
{
default:
case CX_CXXInvalidAccessSpecifier:
case CX_CXXPublic:
return tcDtorPublic;
case CX_CXXProtected:
return tcDtorProtected;
case CX_CXXPrivate:
return tcDtorPrivate;
}
case CXCursor_FunctionDecl:
case CXCursor_CXXMethod:
case CXCursor_FunctionTemplate:
switch (access)
{
default:
case CX_CXXInvalidAccessSpecifier:
case CX_CXXPublic:
return tcFuncPublic;
case CX_CXXProtected:
return tcFuncProtected;
case CX_CXXPrivate:
return tcFuncPrivate;
}
case CXCursor_FieldDecl:
case CXCursor_VarDecl:
case CXCursor_ParmDecl:
switch (access)
{
default:
case CX_CXXInvalidAccessSpecifier:
case CX_CXXPublic:
return tcVarPublic;
case CX_CXXProtected:
return tcVarProtected;
case CX_CXXPrivate:
return tcVarPrivate;
}
case CXCursor_MacroDefinition:
return tcMacroDef;
case CXCursor_EnumDecl:
switch (access)
{
case CX_CXXPublic:
return tcEnumPublic;
case CX_CXXProtected:
return tcEnumProtected;
case CX_CXXPrivate:
return tcEnumPrivate;
default:
case CX_CXXInvalidAccessSpecifier:
return tcEnum;
}
case CXCursor_EnumConstantDecl:
return tcEnumerator;
case CXCursor_Namespace:
return tcNamespace;
case CXCursor_TypedefDecl:
switch (access)
{
case CX_CXXPublic:
return tcTypedefPublic;
case CX_CXXProtected:
return tcTypedefProtected;
case CX_CXXPrivate:
return tcTypedefPrivate;
default:
case CX_CXXInvalidAccessSpecifier:
return tcTypedef;
}
default:
return tcNone;
}
}
void ClangProxy::CodeCompleteAt(bool isAuto, const wxString& filename, int line, int column, int translId, const std::map<wxString, wxString>& unsavedFiles, std::vector<ClToken>& results)
{
wxCharBuffer chName = filename.ToUTF8();
std::vector<CXUnsavedFile> clUnsavedFiles;
std::vector<wxCharBuffer> clFileBuffer;
for (std::map<wxString, wxString>::const_iterator fileIt = unsavedFiles.begin();
fileIt != unsavedFiles.end(); ++fileIt)
{
CXUnsavedFile unit;
clFileBuffer.push_back(fileIt->first.ToUTF8());
unit.Filename = clFileBuffer.back().data();
clFileBuffer.push_back(fileIt->second.ToUTF8());
unit.Contents = clFileBuffer.back().data();
#if wxCHECK_VERSION(2, 9, 4)
unit.Length = clFileBuffer.back().length();
#else
unit.Length = strlen(unit.Contents); // extra work needed because wxString::Length() treats multibyte character length as '1'
#endif
clUnsavedFiles.push_back(unit);
}
CXCodeCompleteResults* clResults = m_TranslUnits[translId].CodeCompleteAt(chName.data(), line, column, clUnsavedFiles.empty() ? nullptr : &clUnsavedFiles[0], clUnsavedFiles.size());
if (!clResults)
return;
if (isAuto && clang_codeCompleteGetContexts(clResults) == CXCompletionContext_Unknown)
return;
const int numResults = clResults->NumResults;
results.reserve(numResults);
for (int resIdx = 0; resIdx < numResults; ++resIdx)
{
const CXCompletionResult& token = clResults->Results[resIdx];
if (CXAvailability_Available != clang_getCompletionAvailability(token.CompletionString))
continue;
const int numChunks = clang_getNumCompletionChunks(token.CompletionString);
wxString type;
for (int chunkIdx = 0; chunkIdx < numChunks; ++chunkIdx)
{
CXCompletionChunkKind kind = clang_getCompletionChunkKind(token.CompletionString, chunkIdx);
if (kind == CXCompletionChunk_ResultType)
{
CXString str = clang_getCompletionChunkText(token.CompletionString, chunkIdx);
type = wxT(": ") + wxString::FromUTF8(clang_getCString(str));
wxString prefix;
if (type.EndsWith(wxT(" *"), &prefix) || type.EndsWith(wxT(" &"), &prefix))
type = prefix + type.Last();
clang_disposeString(str);
}
else if (kind == CXCompletionChunk_TypedText)
{
if (type.Length() > 40)
{
type.Truncate(35);
if (wxIsspace(type.Last()))
type.Trim();
else if (wxIspunct(type.Last()))
{
for (int i = type.Length() - 2; i > 10; --i)
{
if (!wxIspunct(type[i]))
{
type.Truncate(i + 1);
break;
}
}
}
else if (wxIsalnum(type.Last()) || type.Last() == wxT('_'))
{
for (int i = type.Length() - 2; i > 10; --i)
{
if (!( wxIsalnum(type[i]) || type[i] == wxT('_') ))
{
type.Truncate(i + 1);
break;
}
}
}
type += wxT("...");
}
CXString completeTxt = clang_getCompletionChunkText(token.CompletionString, chunkIdx);
results.push_back(ClToken(wxString::FromUTF8(clang_getCString(completeTxt)) + type,// + F(wxT("%d"), token.CursorKind),
resIdx, clang_getCompletionPriority(token.CompletionString), GetTokenCategory(token.CursorKind)));
clang_disposeString(completeTxt);
type.Empty();
break;
}
}
}
}
wxString ClangProxy::DocumentCCToken(int translId, int tknId)
{
const CXCompletionResult* token = m_TranslUnits[translId].GetCCResult(tknId);
if (!token)
return wxEmptyString;
int upperBound = clang_getNumCompletionChunks(token->CompletionString);
wxString doc;
if (token->CursorKind == CXCursor_Namespace)
doc = wxT("namespace ");
for (int i = 0; i < upperBound; ++i)
{
CXCompletionChunkKind kind = clang_getCompletionChunkKind(token->CompletionString, i);
if (kind == CXCompletionChunk_TypedText)
{
CXString str = clang_getCompletionParent(token->CompletionString, nullptr);
wxString parent = wxString::FromUTF8(clang_getCString(str));
if (!parent.IsEmpty())
doc += parent + wxT("::");
clang_disposeString(str);
}
CXString str = clang_getCompletionChunkText(token->CompletionString, i);
doc += wxString::FromUTF8(clang_getCString(str));
if (kind == CXCompletionChunk_ResultType)
{
if (doc.Length() > 2 && doc[doc.Length() - 2] == wxT(' '))
doc.RemoveLast(2) += doc.Last();
doc += wxT(' ');
}
clang_disposeString(str);
}
wxString descriptor;
wxString identifier;
unsigned tokenHash = HashToken(token->CompletionString, identifier);
if (!identifier.IsEmpty())
{
TokenId tId = m_Database.GetTokenId(identifier, tokenHash);
if (tId != wxNOT_FOUND)
{
const AbstractToken& aTkn = m_Database.GetToken(tId);
CXCursor clTkn = m_TranslUnits[translId].GetTokensAt(m_Database.GetFilename(aTkn.fileId), aTkn.line, aTkn.column);
if (!clang_Cursor_isNull(clTkn) && !clang_isInvalid(clTkn.kind))
{
CXComment docComment = clang_Cursor_getParsedComment(clTkn);
HTML_Writer::FormatDocumentation(docComment, descriptor, m_CppKeywords);
if (clTkn.kind == CXCursor_EnumConstantDecl)
{
// can possibly yield incorrect results
doc += wxString::Format(wxT("=%d"), static_cast<int>(clang_getEnumConstantDeclValue(clTkn)));
}
else if (clTkn.kind == CXCursor_TypedefDecl)
{
CXString str = clang_getTypeSpelling(clang_getTypedefDeclUnderlyingType(clTkn));
wxString type = wxString::FromUTF8(clang_getCString(str));
if (!type.IsEmpty())
doc.Prepend(wxT("typedef ") + type + wxT(" "));
clang_disposeString(str);
}
}
}
}
if (descriptor.IsEmpty())
{
CXString comment = clang_getCompletionBriefComment(token->CompletionString);
descriptor = HTML_Writer::Escape(wxT("\n") + wxString::FromUTF8(clang_getCString(comment)));
clang_disposeString(comment);
}
return wxT("<html><body><br><tt>") + HTML_Writer::SyntaxHl(doc, m_CppKeywords) + wxT("</tt>") + descriptor + wxT("</body></html>");
}
wxString ClangProxy::GetCCInsertSuffix(int translId, int tknId, const wxString& newLine, std::pair<int, int>& offsets)
{
const CXCompletionResult* token = m_TranslUnits[translId].GetCCResult(tknId);
if (!token)
return wxEmptyString;
const CXCompletionString& clCompStr = token->CompletionString;
int upperBound = clang_getNumCompletionChunks(clCompStr);
enum BuilderState { init, store, exit };
BuilderState state = init;
wxString suffix;
for (int i = 0; i < upperBound; ++i)
{
switch (clang_getCompletionChunkKind(clCompStr, i))
{
case CXCompletionChunk_TypedText:
if (state == init)
state = store;
break;
case CXCompletionChunk_Placeholder:
if (state == store)
{
CXString str = clang_getCompletionChunkText(clCompStr, i);
const wxString& param = wxT("/*! ") + wxString::FromUTF8(clang_getCString(str)) + wxT(" !*/");
offsets = std::make_pair(suffix.Length(), suffix.Length() + param.Length());
suffix += param;
clang_disposeString(str);
state = exit;
}
break;
case CXCompletionChunk_Informative:
break;
case CXCompletionChunk_VerticalSpace:
if (state != init)
suffix += newLine;
break;
default:
if (state != init)
{
CXString str = clang_getCompletionChunkText(clCompStr, i);
suffix += wxString::FromUTF8(clang_getCString(str));
clang_disposeString(str);
}
break;
}
}
if (state != exit)
offsets = std::make_pair(suffix.Length(), suffix.Length());
return suffix;
}
void ClangProxy::RefineTokenType(int translId, int tknId, int& tknType)
{
const CXCompletionResult* token = m_TranslUnits[translId].GetCCResult(tknId);
if (!token)
return;
wxString identifier;
unsigned tokenHash = HashToken(token->CompletionString, identifier);
if (!identifier.IsEmpty())
{
TokenId tId = m_Database.GetTokenId(identifier, tokenHash);
if (tId != wxNOT_FOUND)