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Added ValueFromAllCtx function to Options #19

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Added ValueFromAllCtx function to Options #19

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13 changes: 13 additions & 0 deletions helper.go
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,19 @@ func newEmptyOptions(eval *evalVisitor) *Options {
// Context Values
//

// ValueFromAllCtx returns the first occurence of field value from all the contexts in the stack. The search occurs backwards from the current context, ending at the root context.
func (options *Options) ValueFromAllCtx(name string) interface{} {
// Loop through all contexts in the stack
for index := range options.eval.ctx {
value := options.eval.evalField(options.eval.ancestorCtx(index), name, false)
if value.IsValid() {
return value.Interface()
}
}

return nil
}

// Value returns field value from current context.
func (options *Options) Value(name string) interface{} {
value := options.eval.evalField(options.eval.curCtx(), name, false)
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