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package ast
import (
"fmt"
)
// VariableAccess represents a variable access.
type VariableAccess struct {
Name string
Posx Pos
}
func (n *VariableAccess) Accept(v Visitor) Node {
return v(n)
}
func (n *VariableAccess) Pos() Pos {
return n.Posx
}
func (n *VariableAccess) GoString() string {
return fmt.Sprintf("*%#v", *n)
}
func (n *VariableAccess) String() string {
return fmt.Sprintf("Variable(%s)", n.Name)
}
func (n *VariableAccess) Type(s Scope) (Type, error) {
v, ok := s.LookupVar(n.Name)
if !ok {
return TypeInvalid, fmt.Errorf("unknown variable: %s", n.Name)
}
return v.Type, nil
}
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