31 lines
674 B
Go
31 lines
674 B
Go
package ast
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import (
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"bytes"
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"code.jmug.me/jmug/interpreter-in-go/pkg/token"
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)
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type IfExpression struct {
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Token token.Token // The `if` token.
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Condition Expression
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Consequence *BlockStatement
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Alternative *BlockStatement
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}
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func (ie *IfExpression) expressionNode() {}
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func (ie *IfExpression) TokenLiteral() string {
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return ie.Token.Literal
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}
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func (ie *IfExpression) String() string {
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var out bytes.Buffer
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out.WriteString("if")
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out.WriteString(ie.Condition.String())
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out.WriteString(" ")
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out.WriteString(ie.Consequence.String())
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if ie.Alternative != nil {
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out.WriteString("else ")
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out.WriteString(ie.Alternative.String())
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}
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return out.String()
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}
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