Parameter::Parameter(CONSTRUCT_ARGS, const string &type, const string &name, int idx, bool ref, ExpressionPtr defVal, int argNum) : Construct(CONSTRUCT_PASS), m_type(type), m_name(Name::fromString(CONSTRUCT_PASS, name)), m_defVal(defVal), m_fnName(NULL), m_idx(idx), m_kind(KindOfNull), m_argNum(argNum), m_ref(ref), m_nullDefault(false) { if (!type.empty()) { m_fnName = parser->peekFunc()->name().c_str(); if (strcasecmp(type.c_str(), "array") == 0) { m_kind = KindOfArray; } else { m_kind = KindOfObject; if (strcasecmp(type.c_str(), "self") == 0 && parser->haveClass()) { m_type = parser->peekClass()->name(); } } if (m_defVal) { ScalarExpressionPtr s = m_defVal->cast<ScalarExpression>(); bool correct = false; if (s) { DataType dtype = s->getValue().getType(); correct = m_nullDefault = dtype == KindOfNull; } else { ArrayExpressionPtr a = m_defVal->cast<ArrayExpression>(); correct = a && m_kind == KindOfArray; } if (!correct) { if (m_kind == KindOfArray) { throw_fatal("Default value for parameters with array type hint can " "only be an array or NULL"); } else { throw_fatal("Default value for parameters with a class type hint can" " only be NULL"); } } } } }