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namespace VQDR.Expression {
public abstract class ValueToken : Token {
protected ValueToken (int32 position) {
base (position);
}
public static ValueToken? init_constant_token (long val, int32 position) {
return new ConstantValueToken (val, position);
}
public static ValueToken? init_variable_token (string name,
int32 position) {
return new VariableValueToken (name, position);
}
public static ValueToken? init_value_token (Value p1, int32 position) {
switch (p1.type ()){
case (Type.STRING):
return init_variable_token (p1.get_string (), position);
case (Type.LONG):
return new ConstantValueToken (p1.get_long (), position);
}
return null;
}
}
}
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