43 lines
695 B
Go
43 lines
695 B
Go
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package ast
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import (
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"fmt"
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)
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// UnaryArithmetic represents a node where the result is arithmetic of
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// one operands
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type UnaryArithmetic struct {
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Op ArithmeticOp
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Expr Node
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Posx Pos
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}
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func (n *UnaryArithmetic) Accept(v Visitor) Node {
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n.Expr = n.Expr.Accept(v)
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return v(n)
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}
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func (n *UnaryArithmetic) Pos() Pos {
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return n.Posx
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}
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func (n *UnaryArithmetic) GoString() string {
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return fmt.Sprintf("*%#v", *n)
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}
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func (n *UnaryArithmetic) String() string {
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var sign rune
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switch n.Op {
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case ArithmeticOpAdd:
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sign = '+'
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case ArithmeticOpSub:
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sign = '-'
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}
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return fmt.Sprintf("%c%s", sign, n.Expr)
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}
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func (n *UnaryArithmetic) Type(Scope) (Type, error) {
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return TypeInt, nil
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}
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