@Override
public Expression interpret(InterState istate, SemanticContext context) {
Expression e = EXP_CANT_INTERPRET;
VarDeclaration v = declaration.isVarDeclaration();
if (v != null) {
Dsymbol s = v.toAlias(context);
if (s == v && !v.isStatic() && v.init() != null) {
ExpInitializer ie = v.init().isExpInitializer();
if (ie != null) {
e = ie.exp.interpret(istate, context);
} else if (v.init().isVoidInitializer() != null) {
e = null;
}
} else {
boolean condition;
if (context.isD2()) {
condition = s == v && (v.isConst() || v.isInvariant(context)) && v.init != null;
} else {
condition = s == v && v.isConst() && v.init() != null;
}
if (condition) {
e = v.init().toExpression(context);
if (null == e) {
e = EXP_CANT_INTERPRET;
} else if (null == e.type) {
e.type = v.type;
}
} else if (declaration.isAttribDeclaration() != null
|| declaration.isTemplateMixin() != null
|| declaration.isTupleDeclaration()
!= null) { // These can be made to work, too lazy now
e = EXP_CANT_INTERPRET;
} else { // Others should not contain executable code, so are trivial to evaluate
e = null;
}
}
}
return e;
}
