| private ResolveName ( string name, int length, Instruction &loadInstruction ) : int | ||
| name | string | |
| length | int | |
| loadInstruction | Instruction | |
| return | int | |
private static void StaticField(Compiler c, bool allowAssignment)
{
Instruction loadInstruction = Instruction.LOAD_LOCAL;
int index = 255;
Compiler classCompiler = c.GetEnclosingClassCompiler();
if (classCompiler == null)
{
c.Error("Cannot use a static field outside of a class definition.");
}
else
{
// Look up the name in the scope chain.
Token token = c._parser.Previous;
// If this is the first time we've seen this static field, implicitly
// define it as a variable in the scope surrounding the class definition.
if (classCompiler.ResolveLocal(c._parser.Source.Substring(token.Start, token.Length), token.Length) == -1)
{
int symbol = classCompiler.DeclareVariable(null);
// Implicitly initialize it to null.
classCompiler.Emit(Instruction.NULL);
classCompiler.DefineVariable(symbol);
}
// It definitely exists now, so resolve it properly. This is different from
// the above resolveLocal() call because we may have already closed over it
// as an upvalue.
index = c.ResolveName(c._parser.Source.Substring(token.Start, token.Length), token.Length, out loadInstruction);
}
c.Variable(allowAssignment, index, loadInstruction);
}