ultimatepp/uppsrc/ide/IncludeTrick.cpp
2022-07-07 12:57:04 +02:00

72 lines
2 KiB
C++

#include "ide.h"
// libclang is unable to parse include files so we create fake .cpp content
bool DoIncludeTrick(Index<String>& visited, int level, StringBuffer& out, String path, const String& target_path, int& line_delta)
{
String filedir = GetFileDirectory(path);
bool comment = false;
if(GetFileLength(path) > 200000 || out.GetCount() > 200000)
return false;
visited.Add(path);
FileIn in(path);
while(!in.IsEof()) {
String l = in.GetLine();
String tl = TrimLeft(l);
if(!comment && tl.TrimStart("#include") && (*tl == ' ' || *tl == '\t')) {
String ipath = FindIncludeFile(tl, filedir);
if(ipath.GetCount()) {
if(NormalizePath(ipath) == NormalizePath(target_path))
return true;
int q = out.GetCount();
int qq = line_delta;
if(FindIndex(HdependGetDependencies(ipath), target_path) >= 0 && visited.Find(ipath) < 0 && level < 10
&& DoIncludeTrick(visited, level + 1, out, ipath, target_path, line_delta))
return true;
out.SetCount(q);
line_delta = qq;
out << "#include <" << ipath << ">\n";
line_delta++;
}
else {
out << l << '\n';
line_delta++;
}
}
else {
out << l << '\n';
line_delta++;
for(const char *s = l; *s; s++) {
if(s[0] == '/' && s[1] == '*') {
comment = true;
s++;
}
if(s[0] == '*' && s[1] == '/') {
comment = false;
s++;
}
}
}
}
return false;
}
bool MakeIncludeTrick(const Package& pk, const String pk_name, CurrentFileContext& cfx, int& line_delta)
{ // create pseudo source file for autocomplete in include file
HdependTimeDirty();
for(int i = 0; i < pk.file.GetCount(); i++) {
String path = SourcePath(pk_name, pk.file[i]);
if(!PathIsEqual(cfx.filename, path) && IsSourceFile(path)) {
if(FindIndex(HdependGetDependencies(path), cfx.filename) >= 0 && GetFileLength(path) < 200000) {
StringBuffer out;
Index<String> visited;
if(DoIncludeTrick(visited, 0, out, path, cfx.filename, line_delta))
cfx.content = String(out) + cfx.content;
else
cfx.content.Clear();
return true;
}
}
}
return false;
}