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- Use a map for symbol tables instead of an array.

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SVN r2258 (scripting)
This commit is contained in:
Randy Heit 2010-03-30 04:11:16 +00:00
parent e553f9a34f
commit d87d2c731f
4 changed files with 28 additions and 57 deletions
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7
src/dobject.cpp
View file

@ -389,9 +389,12 @@ void DObject::SerializeUserVars(FArchive &arc)
// Write all user variables.
for (; symt != NULL; symt = symt->ParentSymbolTable)
{
for (unsigned i = 0; i < symt->Symbols.Size(); ++i)
PSymbolTable::MapType::Iterator it(symt->Symbols);
PSymbolTable::MapType::Pair *pair;
while (it.NextPair(pair))
{
PSymbol *sym = symt->Symbols[i];
PSymbol *sym = pair->Value;
if (sym->SymbolType == SYM_Variable)
{
PSymbolVariable *var = static_cast<PSymbolVariable *>(sym);

70
src/dobjtype.cpp
View file

@ -481,11 +481,16 @@ PSymbolTable::~PSymbolTable ()
size_t PSymbolTable::MarkSymbols()
{
for (unsigned int i = 0; i < Symbols.Size(); ++i)
size_t count = 0;
MapType::Iterator it(Symbols);
MapType::Pair *pair;
while (it.NextPair(pair))
{
GC::Mark(Symbols[i]);
GC::Mark(pair->Value);
count++;
}
return Symbols.Size() * sizeof(Symbols[0]);
return count * sizeof(Symbols[0]);
}
void PSymbolTable::ReleaseSymbols()
@ -502,64 +507,21 @@ void PSymbolTable::SetParentTable (PSymbolTable *parent)
PSymbol *PSymbolTable::FindSymbol (FName symname, bool searchparents) const
{
int min, max;
min = 0;
max = (int)Symbols.Size() - 1;
while (min <= max)
PSymbol * const *value = Symbols.CheckKey(symname);
if (value == NULL && searchparents && ParentSymbolTable != NULL)
{
unsigned int mid = (min + max) / 2;
PSymbol *sym = Symbols[mid];
if (sym->SymbolName == symname)
{
return sym;
}
else if (sym->SymbolName < symname)
{
min = mid + 1;
}
else
{
max = mid - 1;
}
return ParentSymbolTable->FindSymbol(symname, searchparents);
}
if (searchparents && ParentSymbolTable != NULL)
{
return ParentSymbolTable->FindSymbol (symname, true);
}
return NULL;
return value != NULL ? *value : NULL;
}
PSymbol *PSymbolTable::AddSymbol (PSymbol *sym)
{
// Insert it in sorted order.
int min, max, mid;
min = 0;
max = (int)Symbols.Size() - 1;
while (min <= max)
// Symbols that already exist are not inserted.
if (Symbols.CheckKey(sym->SymbolName) != NULL)
{
mid = (min + max) / 2;
PSymbol *tsym = Symbols[mid];
if (tsym->SymbolName == sym->SymbolName)
{ // A symbol with this name already exists in the table
return NULL;
}
else if (tsym->SymbolName < sym->SymbolName)
{
min = mid + 1;
}
else
{
max = mid - 1;
}
return NULL;
}
// Good. The symbol is not in the table yet.
Symbols.Insert (MAX(min, max), sym);
Symbols.Insert(sym->SymbolName, sym);
return sym;
}

4
src/dobjtype.h
View file

@ -141,8 +141,10 @@ struct PSymbolTable
void ReleaseSymbols();
private:
typedef TMap<FName, PSymbol *> MapType;
PSymbolTable *ParentSymbolTable;
TArray<PSymbol *> Symbols;
MapType Symbols;
friend class DObject;
};

4
src/zscript/zcc_parser.cpp
View file

@ -241,8 +241,10 @@ static void DoParse(const char *filename)
parser = ZCCParseAlloc(malloc);
failed = false;
#ifdef _DEBUG
FILE *f = fopen("trace.txt", "w");
ZCCParseTrace(f, "");
#endif
while (sc.GetToken())
{
if (sc.TokenType == TK_StringConst)
@ -294,10 +296,12 @@ static void DoParse(const char *filename)
ZCCParse(parser, ZCC_EOF, value, &sc);
ZCCParse(parser, 0, value, &sc);
ZCCParseFree(parser, free);
#ifdef _DEBUG
if (f != NULL)
{
fclose(f);
}
#endif
}
CCMD(parse)