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git-svn-id: svn://ultimatepp.org/upp/trunk@8292 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2015-03-24 14:50:32 +00:00
parent 9ca584c336
commit 9bb94bd5b9
6 changed files with 169 additions and 145 deletions
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117
uppdev/cpp2/cpp.cpp
View file

@ -1,88 +1,5 @@
#include "cpp.h"
#include <string.h>
inline bool IsSpc(byte c)
{
return c > 0 && c <= 32;
}
String CppMacro::ToString() const
{
return String().Cat() << "(" << AsString(param) << ") " << body;
}
String CppMacro::Expand(const Vector<String>& p) const
{
String r;
const char *s = body;
while(*s) {
if(IsAlpha(*s) || *s == '_') {
const char *b = s;
s++;
while(IsAlNum(*s) || *s == '_')
s++;
String id(b, s);
static String VA_ARGS("__VA_ARGS__"); // Speed optimization
if(id == VA_ARGS) {
bool next = false;
for(int i = param.GetCount(); i < p.GetCount(); i++) {
if(next)
r.Cat(", ");
r.Cat(p[i]);
next = true;
}
}
else {
int q = param.Find(id);
if(q >= 0) {
if(q < p.GetCount())
r.Cat(p[q]);
}
else
r.Cat(id);
}
continue;
}
if(s[0] == '#' && s[1] == '#') {
int q = r.GetLength();
while(q > 0 && IsSpc(r[q - 1]))
q--;
r.Trim(q);
s += 2;
while((byte)*s <= ' ')
s++;
continue;
}
if(*s == '#') {
const char *ss = s + 1;
while(IsSpc(*ss))
ss++;
if(IsAlpha(*ss) || *ss == '_') {
const char *b = ss;
ss++;
while(IsAlNum(*ss) || *ss == '_')
ss++;
String id(b, ss);
int q = param.Find(id);
if(q >= 0) {
if(q <= p.GetCount()) {
if(q < p.GetCount())
r.Cat(AsCString(p[q]));
s = ss;
continue;
}
}
r.Cat(String(s, ss));
s = ss;
continue;
}
}
r.Cat(*s++);
}
return r;
}
void Cpp::Define(const char *s)
{
CppMacro m;
@ -145,10 +62,10 @@ String Cpp::Expand(const char *s, Index<String>& notmacro)
r.Cat(*s++);
}
else
if(iscib2(*s)) {
if(iscib(*s)) {
const char *b = s;
s++;
while(iscid2(*s))
while(iscid(*s))
s++;
String id(b, s);
if(notmacro.Find(id) < 0) {
@ -219,7 +136,8 @@ String Cpp::Expand(const char *s, Index<String>& notmacro)
return r;
}
bool Cpp::Preprocess(const String& sourcefile, Stream& in, const String& currentfile)
bool Cpp::Preprocess(const String& sourcefile, Stream& in, const String& currentfile,
const Index<String> *get_macros)
{
macro.Clear();
Vector<String> ignorelist = Split("__declspec;__cdecl;"
@ -228,35 +146,39 @@ bool Cpp::Preprocess(const String& sourcefile, Stream& in, const String& current
"$drv_group;$allowed_on_parameter",
';');
for(int i = 0; i < ignorelist.GetCount(); i++)
macro.GetAdd(ignorelist[i]).variadic = true;
macro.GetAdd(ignorelist[i]).param = ".";
done = false;
incomment = false;
Index<String> visited;
Do(NormalizePath(sourcefile), in, NormalizePath(currentfile), visited);
Do(NormalizePath(sourcefile), in, NormalizePath(currentfile), visited, get_macros);
return done;
}
void Cpp::Do(const String& sourcefile, Stream& in, const String& currentfile, Index<String>& visited)
void Cpp::Do(const String& sourcefile, Stream& in, const String& currentfile,
Index<String>& visited, const Index<String> *get_macros)
{
DDUMP(currentfile);
// DUMP(currentfile);
if(visited.Find(currentfile) >= 0 || visited.GetCount() > 20000)
return;
visited.Add(currentfile);
String current_folder = GetFileFolder(currentfile);
if(sourcefile != currentfile) {
const PPFile& pp = GetPPFile(currentfile);
#ifdef _DEBUG
pp.Dump();
#endif
for(int i = 0; i < pp.item.GetCount() && !done; i++) {
const PPItem& m = pp.item[i];
if(m.type == PP_DEFINE) {
if(m.macro.body.GetCount())
macro.GetAdd(m.id) = clone(m.macro);
// RTIMING("macro Add");
if(!get_macros || get_macros->Find(m.id) >= 0)
macro.GetAdd(m.id) = m.macro;
}
else
if(m.type == PP_INCLUDE) {
String s = GetIncludePath(m.id, current_folder, include_path);
if(s.GetCount())
Do(sourcefile, in, s, visited);
Do(sourcefile, in, s, visited, get_macros);
}
else
if(m.type == PP_NAMESPACE)
@ -271,6 +193,11 @@ void Cpp::Do(const String& sourcefile, Stream& in, const String& currentfile, In
return;
}
done = true;
if(get_macros)
return;
RTIMING("Expand");
incomment = false;
StringBuffer result;
result.Clear();
@ -299,7 +226,7 @@ void Cpp::Do(const String& sourcefile, Stream& in, const String& currentfile, In
String hdr = Expand(p.GetPtr());
String header_path = GetIncludePath(hdr, current_folder, include_path);
if(header_path.GetCount())
Do(Null, NilStream(), header_path, visited);
Do(Null, NilStream(), header_path, visited, get_macros);
}
}
}
@ -309,6 +236,6 @@ void Cpp::Do(const String& sourcefile, Stream& in, const String& currentfile, In
while(el--)
result.Cat("\n");
}
done = true;
DUMP(macro.GetCount());
output = result;
}