ultimatepp/uppsrc/ide/Cpp.cpp
cxl 4147dfb66a cpp: Fixed issue with wrong comment detection
git-svn-id: svn://ultimatepp.org/upp/trunk@8692 f0d560ea-af0d-0410-9eb7-867de7ffcac7
2015-07-16 18:41:19 +00:00

422 lines
12 KiB
C++

#include "ide.h"
#if 0
#define LDUMP(x) DDUMP(x)
#define LDUMPC(x) DDUMPC(x)
#define LLOG(x) DLOG(x)
#else
#define LDUMP(x)
#define LDUMPC(x)
#define LLOG(x)
#endif
#define LTIMING(x) // DTIMING(x)
static Array<CppItem> sEmpty;
const Array<CppItem>& GetTypeItems(const String& type)
{
int q = CodeBase().Find(type);
if(q < 0)
return sEmpty;
return CodeBase()[q];
}
Vector<String> GetTypeBases(const String& type)
{
const Array<CppItem>& n = GetTypeItems(type);
String bases;
for(int i = 0; i < n.GetCount(); i++) {
const CppItem& im = n[i];
if(im.IsType())
bases << im.qptype << ';';
}
Index<String> r;
Vector<String> h = Split(bases, ';');
for(int i = 0; i < h.GetCount(); i++)
r.FindAdd(h[i]);
return r.PickKeys();
}
String ParseTemplatedType(const String& type, Vector<String>& tparam)
{
const char *s = type;
String r;
while(*s) {
if(*s == '<') {
s++;
int lvl = 0;
String t;
while(*s) {
int c = *s++;
if(c == ',' && lvl == 0) {
tparam.Add(t);
t.Clear();
}
else {
if(c == '>') {
if(lvl == 0)
break;
lvl--;
}
if(c == '<')
lvl++;
t.Cat(c);
}
}
tparam.Add(t);
break;
}
else
r.Cat(*s++);
}
LLOG("ParseTemplatedType " << type << " -> " << r);
LDUMPC(tparam);
return r;
}
String ResolveTParam(const String& type, const Vector<String>& tparam)
{
LLOG("ResolveTParam " << type << ' ' << tparam);
String r;
const char *s = type;
while(*s) {
if(IsDigit(*s)) {
int i = *s++ - '0';
if(i >= 0 && i < tparam.GetCount())
r.Cat(tparam[i]);
}
else
if(iscib(*s))
while(iscid(*s))
r.Cat(*s++);
else
r.Cat(*s++);
}
LLOG("Resolved " << type << " -> " << r);
const Array<CppItem>& x = GetTypeItems(r);
if(x.GetCount() && x[0].kind == TYPEDEF) {
LLOG("Is typedef " << x[0].qtype << ';' << x[0].type << ';' << x[0].natural);
String h = x[0].qtype;
if(h != type && h != r)
return ResolveTParam(h, tparam);
return h;
}
return r;
}
void ResolveTParam(Vector<String>& type, const Vector<String>& tparam)
{
for(int i = 0; i < type.GetCount(); i++)
type[i] = ResolveTParam(type[i], tparam);
}
void AssistScanError(int line, const String& text)
{
#ifdef _DEBUG
PutVerbose(String().Cat() << "(" << line << "): " << text);
#endif
}
void AssistEditor::Context(Parser& parser, int pos)
{
LTIMING("Context");
theide->ScanFile();
String s = Get(0, pos);
StringStream ss(s);
String path = NormalizeSourcePath(theide->editfile);
LLOG("---------- Context " << path);
Cpp cpp;
cpp.Preprocess(path, ss, GetMasterFile(path));
parser.dobody = true;
StringStream pin(cpp.output);
parser.Do(pin, CodeBase(), Null, Null, GetFileTitle(theide->editfile), callback(AssistScanError),
Vector<String>(), cpp.namespace_stack, cpp.namespace_using); // needs CodeBase to identify type names
// QualifyTypes(CodeBase(), parser.current_scope, parser.current);
inbody = parser.IsInBody();
#ifdef _DEBUG
PutVerbose("body: " + AsString(inbody));
PutVerbose("scope: " + AsString(parser.current_scope));
PutVerbose("using: " + AsString(parser.context.namespace_using));
for(int i = 0; i < parser.local.GetCount(); i++)
PutVerbose(parser.local.GetKey(i) + ": " + parser.local[i].type);
#endif
}
Vector<String> GetNamespaces(const Parser& parser)
{
Vector<String> ns;
Vector<String> h = Split(parser.current_scope, ':');
while(h.GetCount()) {
ns.Add(Join(h, "::"));
h.Drop();
}
ns.Append(Split(parser.context.namespace_using, ';'));
ns.Add(""); // Add global namespace too
return ns;
}
String Qualify(const String& scope, const String& type, const String& usings)
{
return Qualify(CodeBase(), scope, type, usings);
}
String ResolveReturnType(const CppItem& m, const Vector<String>& tparam)
{
if(m.tparam.GetCount()) {
int q = InScListIndex(m.qtype, m.tname);
if(q >= 0 && q < tparam.GetCount())
return tparam[q];
}
return m.qtype;
}
void AssistEditor::ExpressionType(const String& ttype,
const String& context_type,
const String& usings,
const Vector<String>& xp, int ii,
Index<String>& typeset, bool variable,
bool can_shortcut_operator, Index<String>& visited_bases,
int lvl)
{
LLOG("--- ExpressionType " << scan_counter << ", lvl " << lvl << ", ttype " << ttype);
if(++scan_counter > 1000 || lvl > 100) // sort of ugly limitation of parsing permutations
return;
if(ii >= xp.GetCount()) {
LLOG("--- Final type: " << ttype);
typeset.FindAdd(ttype);
return;
}
LDUMP(ii);
LDUMP(xp[ii]);
LDUMP(can_shortcut_operator);
Vector<String> tparam;
String type = ParseTemplatedType(ttype, tparam);
int c0 = typeset.GetCount();
const Array<CppItem>& n = GetTypeItems(type);
LDUMP(type);
LDUMP(tparam);
if(CodeBase().namespaces.Find(ttype) < 0 && ttype.GetCount()) // do not search for namespace typedefs
for(int i = 0; i < n.GetCount(); i++)
if(n[i].kind == TYPEDEF) {
LLOG("typedef -> " << n[i].qtype);
ExpressionType(n[i].qtype, context_type, usings, xp, ii, typeset, variable, can_shortcut_operator, visited_bases, lvl + 1);
return;
}
String id = xp[ii];
int q = id.ReverseFind(':');
if(q > 0 && id[q - 1] == ':') {
type = ResolveTParam(Qualify(ttype, id.Mid(0, q - 1), usings), tparam);
id = id.Mid(q + 1);
}
if(id.Find('<') >= 0) // as in Single<Display>
id = ParseTemplatedType(id, tparam);
LLOG("ExpressionType " << type << " ii: " << ii << " id:" << id << " variable:" << variable);
for(int i = 0; i < tparam.GetCount(); i++) // need to qualify template parameters
tparam[i] = Qualify(context_type, tparam[i], usings);
bool shortcut_oper = false;
if(!iscid(*id) && *id != '.') {
shortcut_oper = can_shortcut_operator;
id = "operator" + id;
LLOG("id as: " << id);
}
if(*id == '.' || (!variable && !iscid(*id))) {
LLOG(". " << ttype);
ExpressionType(ttype, context_type, usings, xp, ii + 1, typeset, false, lvl + 1);
return;
}
LDUMP(id);
Index<String> done;
for(int i = 0; i < n.GetCount(); i++) {
const CppItem& m = n[i];
if(m.name == id) {
LLOG("Member " << m.qtype << " " << m.name);
String t = ResolveReturnType(m, tparam);
if(done.Find(t) < 0) {
bool skipfnpars = m.IsCode() && ii + 1 < xp.GetCount() && xp[ii + 1] == "()";
ExpressionType(ResolveTParam(t, tparam), context_type, usings, xp, ii + skipfnpars + 1,
typeset, m.IsData() && !m.isptr, lvl + 1);
}
}
}
if(typeset.GetCount() != c0 || IsNull(type))
return;
Vector<String> base = GetTypeBases(type);
LDUMPC(base);
ResolveTParam(base, tparam);
LDUMPC(base);
for(int i = 0; i < base.GetCount(); i++)
if(visited_bases.Find(base[i]) < 0) {
visited_bases.Add(base[i]);
ExpressionType(base[i], context_type, usings, xp, ii, typeset, variable, false, visited_bases, lvl + 1);
if(typeset.GetCount() != c0)
return;
}
if(shortcut_oper) {
LLOG("Shortcut " << xp[ii] << ", ttype " << ttype);
ExpressionType(ttype, context_type, usings, xp, ii + 1, typeset, false, lvl + 1);
}
}
void AssistEditor::ExpressionType(const String& type, const String& context_type,
const String& usings, const Vector<String>& xp, int ii,
Index<String>& typeset, bool variable, int lvl)
{
Index<String> visited_bases;
ExpressionType(type, context_type, usings, xp, ii, typeset, variable, true, visited_bases, lvl);
}
Index<String> AssistEditor::ExpressionType(const Parser& parser, const Vector<String>& xp)
{
LLOG("**** ExpressionType " << xp);
String type;
Index<String> typeset;
if(xp.GetCount() == 0)
return typeset;
if(xp[0] == "this") {
LLOG("this: " << type);
ExpressionType(parser.current_scope, parser.current_scope, parser.context.namespace_using, xp, 1, typeset, false, 0);
return typeset;
}
int q = parser.local.FindLast(xp[0]);
if(q >= 0) {
String type = Qualify(parser.current_scope, parser.local[q].type, parser.context.namespace_using);
LLOG("Found type local: " << type << " in scope: " << parser.current_scope);
ExpressionType(type, parser.current_scope, parser.context.namespace_using, xp, 1, typeset, !parser.local[q].isptr, 0);
return typeset;
}
ExpressionType(parser.current_scope, parser.current_scope, parser.context.namespace_using, xp, 0, typeset, false, 0);
if(typeset.GetCount())
return typeset;
if(xp.GetCount() >= 2 && xp[1] == "()") {
String qtype = Qualify(parser.current_scope, xp[0], parser.context.namespace_using);
Vector<String> tparam;
if(CodeBase().Find(ParseTemplatedType(qtype, tparam)) >= 0) {
LLOG("Is constructor " << qtype);
ExpressionType(qtype, parser.current_scope, parser.context.namespace_using, xp, 2, typeset, false, 0);
return typeset;
}
}
Vector<String> ns = GetNamespaces(parser);
for(int i = 0; i < ns.GetCount(); i++)
ExpressionType(ns[i], parser.current_scope, parser.context.namespace_using, xp, 0, typeset, false, 0);
return typeset;
}
Index<String> AssistEditor::EvaluateExpressionType(const Parser& parser, const Vector<String>& xp)
{
scan_counter = 0;
return ExpressionType(parser, xp);
}
void AssistEditor::AssistItemAdd(const String& scope, const CppItem& m, int typei)
{
if(!iscib(*m.name) || m.name.GetCount() == 0)
return;
CppItemInfo& f = assist_item.Add();
f.typei = typei;
f.scope = scope;
(CppItem&)f = m;
}
void AssistEditor::GatherItems(const String& type, bool only_public, Index<String>& in_types, bool types)
{
LTIMING("GatherItems");
LLOG("---- GatherItems " << type);
if(in_types.Find(type) >= 0) {
LLOG("-> recursion, exiting");
return;
}
in_types.Add(type);
Vector<String> tparam;
String ntp = ParseTemplatedType(ResolveTParam(type, tparam), tparam);
int q = CodeBase().Find(ntp);
if(q >= 0) {
if(types) {
if(ntp.GetCount())
ntp << "::";
int typei = assist_type.FindAdd("<types>");
for(int i = 0; i < CodeBase().GetCount(); i++) {
String nest = CodeBase().GetKey(i);
if(nest.GetLength() > ntp.GetLength() && // Subscope of scope
memcmp(~ntp, ~nest, ntp.GetLength()) == 0 && // e.g. Upp:: -> Upp::String
nest.Find("::", ntp.GetLength()) < 0) { // but not Upp::String::Buffer
Array<CppItem>& n = CodeBase()[i];
for(int i = 0; i < n.GetCount(); i++) {
const CppItem& m = n[i];
if(m.IsType())
AssistItemAdd(nest, m, typei);
}
}
}
}
const Array<CppItem>& n = CodeBase()[q];
String base;
int typei = assist_type.FindAdd(ntp);
bool op = only_public;
for(int i = 0; i < n.GetCount(); i++)
if(n[i].kind == FRIENDCLASS)
op = false;
for(int i = 0; i < n.GetCount(); i++) {
const CppItem& im = n[i];
if(im.kind == STRUCT || im.kind == STRUCTTEMPLATE)
base << im.qptype << ';';
if((im.IsCode() || !thisback && (im.IsData() || im.IsMacro() && IsNull(type)))
&& (!op || im.access == PUBLIC)) {
AssistItemAdd(ntp, im, typei);
}
}
if(!thisback) {
Vector<String> b = Split(base, ';');
Index<String> h;
for(int i = 0; i < b.GetCount(); i++)
h.FindAdd(b[i]);
b = h.PickKeys();
ResolveTParam(b, tparam);
for(int i = 0; i < b.GetCount(); i++)
if(b[i].GetCount())
GatherItems(b[i], only_public, in_types, types);
}
}
in_types.Drop();
}
bool OrderAssistItems(const CppItemInfo& a, const CppItemInfo& b)
{
return CombineCompare(a.uname, b.uname)(a.typei, b.typei)(a.qitem, b.qitem)(b.filetype, a.filetype) < 0;
}
void AssistEditor::RemoveDuplicates()
{
LTIMING("RemoveDuplicates");
{ LTIMING("Sort");
Upp::Sort(assist_item, OrderAssistItems);
}
Vector<int> remove;
{
LTIMING("Find duplicates");
int i = 0;
while(i < assist_item.GetCount()) { // Remove identical items
int ii = i;
i++;
while(i < assist_item.GetCount()
&& assist_item[ii].typei == assist_item[i].typei
&& assist_item[ii].qitem == assist_item[i].qitem
&& assist_item[ii].scope == assist_item[i].scope)
remove.Add(i++);
}
}
LTIMING("Final remove");
assist_item.Remove(remove);
}