53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
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package bexpr
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// getOpts - iterate the inbound Options and return a struct
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func getOpts(opt ...Option) options {
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opts := getDefaultOptions()
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for _, o := range opt {
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if o != nil {
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o(&opts)
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}
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}
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return opts
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}
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// Option - how Options are passed as arguments
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type Option func(*options)
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// options = how options are represented
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type options struct {
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withMaxExpressions uint64
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withTagName string
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withHookFn ValueTransformationHookFn
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}
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func WithMaxExpressions(maxExprCnt uint64) Option {
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return func(o *options) {
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o.withMaxExpressions = maxExprCnt
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}
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}
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// WithTagName indictes what tag to use instead of the default "bexpr"
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func WithTagName(tagName string) Option {
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return func(o *options) {
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o.withTagName = tagName
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}
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}
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// WithHookFn sets a HookFn to be called on the Go data under evaluation
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// and all subfields, indexes, and values recursively. That makes it
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// easier for the JSON Pointer to not match exactly the Go value being
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// evaluated (for example, when using protocol buffers' well-known types).
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func WithHookFn(fn ValueTransformationHookFn) Option {
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return func(o *options) {
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o.withHookFn = fn
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}
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}
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func getDefaultOptions() options {
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return options{
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withMaxExpressions: 0,
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withTagName: "bexpr",
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}
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}
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