ultimatepp/uppsrc/ide/Virtuals.cpp
2026-05-11 08:16:29 +02:00

350 lines
8.4 KiB
C++

#include "ide.h"
struct VirtualMethod : AnnotationItem {
String defined;
String last_override;
};
void GatherVirtuals(ArrayMap<String, VirtualMethod>& virtuals, const String& cls,
Index<String>& visited, bool first)
{
if(IsNull(cls) || visited.Find(cls) >= 0)
return;
visited.Add(cls);
for(const auto& f : ~CodeIndex()) // do base classes first
for(const AnnotationItem& m : f.value.items) {
if(m.id == cls && m.bases.GetCount()) {
// we cheat with With..<TopWindow> by splitting it to With... and TopWindow
for(String s : Split(m.bases, [](int c) { return iscid(c) || c == ':' ? 0 : 1; }))
GatherVirtuals(virtuals, s, visited, false);
}
}
if(!first)
for(const auto& f : ~CodeIndex()) // now gather virtual methods of this class
for(const AnnotationItem& m : f.value.items) {
if(m.nest == cls && IsFunction(m.kind)) {
String signature = m.id.Mid(m.nest.GetCount());
int q = virtuals.Find(signature);
if(q >= 0)
virtuals[q].last_override = cls;
else
if(m.isvirtual) {
VirtualMethod& vm = virtuals.Add(signature);
(AnnotationItem&)vm = m;
vm.defined = vm.last_override = cls;
}
}
}
}
struct VirtualsDisplay : Display {
void Paint(Draw& w, const Rect& r, const Value& q, Color ink, Color paper, dword style) const {
w.DrawRect(r, paper);
VirtualMethod m = q.To<VirtualMethod>();
bool focuscursor = (style & (FOCUS|CURSOR)) == (FOCUS|CURSOR) || (style & SELECT);
PaintCpp(w, r, m.kind, m.name, m.pretty, ink, focuscursor, true);
}
};
struct VirtualsDlg : public WithVirtualsLayout<TopWindow> {
ArrayMap<String, VirtualMethod> virtuals;
Index<String> unneeded_qualifications;
virtual bool Key(dword key, int count)
{
if(key == K_CTRL_K) {
find.SetFocus();
return true;
}
return HotKey(key) || find.Key(key, count);
}
void Sync() {
String name = ~find;
String k;
if(list.IsCursor())
k = list.Get("id");
list.Clear();
for(const auto& m : ~virtuals)
if(ToUpper(m.value.name).Find(name) >= 0)
list.Add(RawToValue(m.value), m.value.defined, m.value.last_override, m.value.id);
if(!list.FindSetCursor(k, "id"))
list.GoBegin();
}
void DblClk() {
if(list.IsCursor()) {
list.Set(5, 1);
Break(IDOK);
}
}
void Serialize(Stream& s)
{
SerializePlacement(s);
list.SerializeHeader(s);
s % add_virtual % add_override;
}
typedef VirtualsDlg CLASSNAME;
VirtualsDlg(const String& nest, const String& local_bases, const Index<String>& namespaces) {
Index<String> classes;
if(local_bases.GetCount())
for(String b : Split(local_bases, ';'))
GatherVirtuals(virtuals, b, classes, false);
else
GatherVirtuals(virtuals, nest, classes, true);
for(String cls : classes) {
Vector<String> split = Split(cls, ':');
if(split.GetCount()) {
split.Drop(); // remove type name (e.g. [Upp, TopWindow] -> [Upp])
String qual;
for(String s : split) {
MergeWith(qual, "::", s);
if(namespaces.Find(qual) < 0) // e.g. if base is Upp::TopWindow, we will not ignore Upp::
unneeded_qualifications.FindAdd(qual);
}
}
}
for(VirtualMethod& m : virtuals) { // remove unneeded qualifications
String r;
const char *s = m.pretty;
const char *b = s;
while(*s) {
if(iscib(*s)) {
r.Cat(b, s);
b = s;
try {
CParser p(s);
String qual;
while(!p.IsEof()) {
qual = p.ReadId();
if(!p.Char2(':', ':') || !p.IsId())
break;
if(unneeded_qualifications.Find(qual) >= 0)
b = p.GetPtr(); // skip uneeded qualification
qual << "::";
}
s = p.GetPtr();
}
catch(CParser::Error) {
if(*s) s++; // should not happen, but if it does, move on
}
}
else
s++;
}
r.Cat(b, s);
m.pretty = r;
}
CtrlLayoutOKCancel(*this, "Virtual methods");
list.AddColumn("Virtual function").SetDisplay(Single<VirtualsDisplay>());
list.AddColumn("Defined in");
list.AddColumn("Last override");
list.AddIndex("id");
list.SetLineCy(Arial(Zy(11)).Info().GetHeight() + DPI(3));
list.ColumnWidths("500 100 100");
list.WhenLeftDouble = THISBACK(DblClk);
list.MultiSelect();
list.EvenRowColor();
Sizeable().Zoomable();
find.NullText("Search (Ctrl+K)");
find.SetFilter([](int c) { return iscid(c) ? ToUpper(c) : 0; });
find <<= THISBACK(Sync);
add_override <<= true;
add_virtual <<= false;
Sync();
}
};
INITBLOCK
{
RegisterGlobalConfig("VirtualsDlg");
}
AnnotationItem AssistEditor::FindCurrentNest(String *local_bases)
{
AnnotationItem cm;
if(!WaitCurrentFile())
return cm;
cm = FindCurrentAnnotation();
int li = GetCursorLine();
if(IsFunction(cm.kind) && local_bases) { // do local classes
for(const AnnotationItem& lm : locals) {
if(lm.pos.y >= cm.pos.y && lm.pos.y <= li && lm.bases.GetCount())
cm = lm;
if(lm.pos.y > li)
break;
}
*local_bases = cm.bases;
return cm;
}
if(IsNull(cm.nest))
Exclamation("No class can be associated with current position.");
return cm;
}
void AssistEditor::Virtuals()
{
SortByKey(CodeIndex());
String local_bases;
AnnotationItem cm = FindCurrentNest(&local_bases);
if(IsNull(cm.nest))
return;
Point pos = GetCurrentPos();
AnnotationItem q; // class declaration to gather explicit namespaces in bases
for(const AnnotationItem& m : annotations) {
if(m.pos.y > pos.y)
break;
if(IsStruct(m.kind))
q = m;
}
Index<String> namespaces; // These namespaces cannot be ignored
try {
int line = q.pos.y;
while(line < GetLineCount()) {
String s = GetUtf8Line(line++);
CParser p(s);
String prospective_namespace;
bool done = false;
while(!p.IsEof()) {
if(p.IsId())
prospective_namespace << p.ReadId();
else
if(p.Char2(':', ':')) {
if(prospective_namespace.GetCount() > 2)
namespaces.Add(prospective_namespace);
prospective_namespace << "::";
}
else {
prospective_namespace.Clear();
if(p.Char('{') || p.Char(';')) {
done = true;
break;
}
p.Skip();
}
}
if(done)
break;
}
}
catch(CParser::Error()) {}
VirtualsDlg dlg(cm.nest, local_bases, namespaces);
LoadFromGlobal(dlg, "VirtualsDlg");
int c = dlg.Run();
StoreToGlobal(dlg, "VirtualsDlg");
if(c != IDOK)
return;
String text;
String ctext;
if(!dlg.list.IsSelection() && dlg.list.IsCursor())
dlg.list.Select(dlg.list.GetCursor());
for(int i = 0; i < dlg.list.GetCount(); i++)
if(dlg.list.IsSel(i)) {
VirtualMethod m = dlg.list.Get(i, 0).To<VirtualMethod>();
m.pretty.TrimEnd(" = 0");
text << "\t";
if(dlg.add_virtual)
text << "virtual ";
text << m.pretty;
if(dlg.add_override)
text << " override";
text << ";\r\n";
ctext << MakeDefinition(m, cm.nest + "::");
}
Paste(text.ToWString());
WriteClipboardText(ctext);
}
void AssistEditor::ConvertToOverrides()
{
// Returns insertion point after trailing qualifiers and sets has_final
auto SkipTrailingQualifiers = [](const char *start, bool& hasfinal) -> const char* {
const char *ins = start;
hasfinal = false;
for(;;) {
const char *q = ins;
while(*q == ' ' || *q == '\t' || *q == '\n' || *q == '\r') // Multiline support
q++;
if(memcmp(q, "const", 5) == 0 && !iscid(q[5]))
ins = q + 5;
else
if(memcmp(q, "noexcept", 8) == 0 && !iscid(q[8]))
ins = q + 8;
else
if(memcmp(q, "final", 5) == 0 && !iscid(q[5])) {
ins = q + 5;
hasfinal = true;
}
else
if(*q == '&' || *q == '*')
ins = q + 1;
else
if(*q == '[') { // attributes [[...]]
int depth = 1;
q++;
while(*q && depth) {
if(*q == '[') depth++;
else if(*q == ']') depth--;
q++;
}
ins = q;
}
else
break;
}
return ins;
};
Make([&](String& out) {
String r;
const char *s = out;
bool virt = false;
int lvl = 0;
while(*s) {
const char *b = s;
while(iscid(*s))
s++;
int len = int(s - b);
if(len == 7 && memcmp(b, "virtual", 7) == 0) {
virt = true;
lvl = 0;
while(*s == ' ' || *s == '\t' || *s == '\n' || *s == '\r') // Multiline support
s++;
}
else {
r.Cat(b, s);
if(*s == '(')
lvl++;
r.Cat(*s);
if(*s == ')') {
lvl = max(lvl - 1, 0);
if(lvl == 0 && virt) {
bool hasfinal = false;
const char *q = SkipTrailingQualifiers(s + 1, hasfinal);
// Append everything up to insertion point
r.Cat(s + 1, int(q - (s + 1)));
// Insert override if not final
if(!hasfinal)
r.Cat(" override");
s = q;
virt = false;
continue;
}
}
s++;
}
}
out = r;
});
}