// Obfuscate all local symbols
// - enumerate all local symbols and tell the symbol allocator
// that it can be obfuscated.
// - where there are `holes` in the rank mapping, tell the symbol
// allocator to reserve those symbols. These holes are to be
// filled by higher frequency symbols on the inner scopes.
public void ObfuscateSymbols(RenderContext ctx, SymbolFrequency SymbolFrequency, SymbolAllocator Allocator, string prefix)
{
// Walk through local symbols
int expectedRank = 0;
foreach (var symbol in SymbolFrequency.Sort())
{
// Ignore public symbols
if (symbol.Accessibility != Accessibility.Private)
continue;
// Ignore non-local symbols
if (symbol.Scope != Symbol.ScopeType.local)
continue;
// Reserve space for inner, higher frequency symbols
if (symbol.Rank > expectedRank)
{
if (ctx.Compiler.Formatted && ctx.Compiler.SymbolInfo)
{
for (int r = expectedRank; r < symbol.Rank; r++)
{
ctx.StartLine();
ctx.AppendFormat("// #{0} reserved", r);
}
}
Allocator.ReserveObfuscatedSymbols(symbol.Rank - expectedRank);
}
string newSymbol = Allocator.OnfuscateSymbol(symbol.Name);
// Show info
if (ctx.Compiler.Formatted && ctx.Compiler.SymbolInfo)
{
ctx.StartLine();
ctx.AppendFormat("// #{0} {3}{1} -> {3}{2}", symbol.Rank, symbol.Name, newSymbol, prefix);
}
expectedRank = symbol.Rank + 1;
}
}
public void ObfuscateSymbols(RenderContext ctx)
{
// Obfuscate all symbols
ObfuscateSymbols(ctx, Symbols, ctx.Symbols, "");
ObfuscateSymbols(ctx, Members, ctx.Members, ".");
// Dump const eliminated variables
foreach (var i in Symbols.Where(x=>x.Value.ConstValue!=null))
{
// Show info
if (ctx.Compiler.Formatted && ctx.Compiler.SymbolInfo)
{
ctx.StartLine();
ctx.AppendFormat("// {0} -> optimized away (const)", i.Value.Name);
}
}
}
public void ObfuscateSymbols(RenderContext ctx)
{
// Obfuscate all symbols
ObfuscateSymbols(ctx, Symbols, ctx.Symbols, "");
ObfuscateSymbols(ctx, Members, ctx.Members, ".");
// Dump const eliminated variables
foreach (var i in Symbols.Where(x=>x.Value.ConstValue!=null))
{
// Show info
if (ctx.Compiler.Formatted && ctx.Compiler.SymbolInfo)
{
ctx.StartLine();
ctx.AppendFormat("// {0} -> optimized away (const)", i.Value.Name);
}
}
}
// Obfuscate all local symbols
// - enumerate all local symbols and tell the symbol allocator
// that it can be obfuscated.
// - where there are `holes` in the rank mapping, tell the symbol
// allocator to reserve those symbols. These holes are to be
// filled by higher frequency symbols on the inner scopes.
public void ObfuscateSymbols(RenderContext ctx, SymbolFrequency SymbolFrequency, SymbolAllocator Allocator, string prefix)
{
// Walk through local symbols
int expectedRank = 0;
foreach (var symbol in SymbolFrequency.Sort())
{
// Ignore public symbols
if (symbol.Accessibility != Accessibility.Private)
continue;
// Ignore non-local symbols
if (symbol.Scope != Symbol.ScopeType.local)
continue;
// Reserve space for inner, higher frequency symbols
if (symbol.Rank > expectedRank)
{
if (ctx.Compiler.Formatted && ctx.Compiler.SymbolInfo)
{
for (int r = expectedRank; r < symbol.Rank; r++)
{
ctx.StartLine();
ctx.AppendFormat("// #{0} reserved", r);
}
}
Allocator.ReserveObfuscatedSymbols(symbol.Rank - expectedRank);
}
string newSymbol = Allocator.OnfuscateSymbol(symbol.Name);
// Show info
if (ctx.Compiler.Formatted && ctx.Compiler.SymbolInfo)
{
ctx.StartLine();
ctx.AppendFormat("// #{0} {3}{1} -> {3}{2}", symbol.Rank, symbol.Name, newSymbol, prefix);
}
expectedRank = symbol.Rank + 1;
}
}
