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36 lines
795 B
Go
36 lines
795 B
Go
package parse
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import "fmt"
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// ParallelNode executes a list of child nodes in parallel.
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type ParallelNode struct {
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NodeType `json:"type"`
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Body []Node `json:"body"` // nodes for parallel evaluation.
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Limit int `json:"limit"` // limit for parallel evaluation.
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}
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func NewParallelNode() *ParallelNode {
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return &ParallelNode{NodeType: NodeParallel}
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}
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func (n *ParallelNode) Append(node Node) *ParallelNode {
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n.Body = append(n.Body, node)
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return n
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}
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func (n *ParallelNode) SetLimit(limit int) *ParallelNode {
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n.Limit = limit
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return n
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}
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func (n *ParallelNode) Validate() error {
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switch {
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case n.NodeType != NodeParallel:
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return fmt.Errorf("Parallel Node uses an invalid type")
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case len(n.Body) == 0:
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return fmt.Errorf("Parallel Node body is empty")
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default:
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return nil
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}
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}
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