static void setLastInstruction(Opcode op, int pos)
{
EmittedInstruction previous = compiler.scopes[compiler.scopeIndex].lastInstruction;
EmittedInstruction last = new EmittedInstruction {
Opcode = op, Position = pos
};
CompilationScope _scope = compiler.scopes[compiler.scopeIndex];
_scope.previousInstruction = previous;
_scope.lastInstruction = last;
compiler.scopes[compiler.scopeIndex] = _scope;
}
static void removeLastPop()
{
EmittedInstruction last = compiler.scopes[compiler.scopeIndex].lastInstruction;
EmittedInstruction previous = compiler.scopes[compiler.scopeIndex].previousInstruction;
List <byte> old = currentInstructions();
List <byte> new_ = new List <byte>(last.Position + 1);
for (int i = 0; i < last.Position; i++)
{
new_.Add(old[i]);
}
CompilationScope _scope = compiler.scopes[compiler.scopeIndex];
_scope.instructions = new_;
_scope.lastInstruction = previous;
compiler.scopes[compiler.scopeIndex] = _scope;
}