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package parser
import (
"github.com/robertkrimen/otto/ast"
)
type _scope struct {
outer *_scope
allowIn bool
inIteration bool
inSwitch bool
inFunction bool
declarationList []ast.Declaration
labels []string
}
func (self *_parser) openScope() {
self.scope = &_scope{
outer: self.scope,
allowIn: true,
}
}
func (self *_parser) closeScope() {
self.scope = self.scope.outer
}
func (self *_scope) declare(declaration ast.Declaration) {
self.declarationList = append(self.declarationList, declaration)
}
func (self *_scope) hasLabel(name string) bool {
for _, label := range self.labels {
if label == name {
return true
}
}
if self.outer != nil && !self.inFunction {
// Crossing a function boundary to look for a label is verboten
return self.outer.hasLabel(name)
}
return false
}
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