38 lines
696 B
Go
38 lines
696 B
Go
package optimizer
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import (
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. "github.com/antonmedv/expr/ast"
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"github.com/antonmedv/expr/conf"
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)
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func Optimize(node *Node, config *conf.Config) error {
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Walk(node, &inArray{})
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for limit := 1000; limit >= 0; limit-- {
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fold := &fold{}
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Walk(node, fold)
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if fold.err != nil {
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return fold.err
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}
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if !fold.applied {
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break
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}
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}
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if config != nil && len(config.ConstExprFns) > 0 {
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for limit := 100; limit >= 0; limit-- {
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constExpr := &constExpr{
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fns: config.ConstExprFns,
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}
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Walk(node, constExpr)
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if constExpr.err != nil {
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return constExpr.err
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}
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if !constExpr.applied {
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break
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}
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}
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}
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Walk(node, &inRange{})
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Walk(node, &constRange{})
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return nil
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}
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