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package ast
// MemberExpr is expression.
type MemberExpr struct {
Addr Address
Pos Position
Type string
Type2 string
Name string
IsLvalue bool
IsBitfield bool
Address2 string
IsPointer bool
NonODRUseUnevaluated bool
ChildNodes []Node
}
func parseMemberExpr(line string) *MemberExpr {
groups := groupsFromRegex(
`<(?P<position>.*)>
'(?P<type>.*?)'
(?P<type2>:'.*?')?
(?P<lvalue> lvalue)?
(?P<bitfield> bitfield)?
(?P<pointer>[->.]+)
(?P<name>\w+)?
(?P<address2>[0-9a-fx]+)
(?P<non_odr_use_unevaluated> non_odr_use_unevaluated)?`,
line,
)
type2 := groups["type2"]
if type2 != "" {
type2 = type2[2 : len(type2)-1]
}
return &MemberExpr{
Addr: ParseAddress(groups["address"]),
Pos: NewPositionFromString(groups["position"]),
Type: groups["type"],
Type2: type2,
IsPointer: groups["pointer"] == "->",
Name: groups["name"],
IsLvalue: len(groups["lvalue"]) > 0,
IsBitfield: len(groups["bitfield"]) > 0,
Address2: groups["address2"],
NonODRUseUnevaluated: len(groups["non_odr_use_unevaluated"]) > 0,
ChildNodes: []Node{},
}
}
// AddChild adds a new child node. Child nodes can then be accessed with the
// Children attribute.
func (n *MemberExpr) AddChild(node Node) {
n.ChildNodes = append(n.ChildNodes, node)
}
// GetDeclRefExpr gets DeclRefExpr from MemberExpr, or nil if there is no
// DeclRefExpr
func (n *MemberExpr) GetDeclRefExpr() *DeclRefExpr {
for _, child := range n.ChildNodes {
res, ok := child.(*DeclRefExpr)
if ok {
return res
}
cast, ok := child.(*ImplicitCastExpr)
if ok {
res, ok = cast.ChildNodes[0].(*DeclRefExpr)
if ok {
return res
}
}
}
// There is no DeclRefExpr
return nil
}
// Address returns the numeric address of the node. See the documentation for
// the Address type for more information.
func (n *MemberExpr) Address() Address {
return n.Addr
}
// Children returns the child nodes. If this node does not have any children or
// this node does not support children it will always return an empty slice.
func (n *MemberExpr) Children() []Node {
return n.ChildNodes
}
// Position returns the position in the original source code.
func (n *MemberExpr) Position() Position {
return n.Pos
}
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