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author | Taylor Gerring <taylor.gerring@gmail.com> | 2015-02-16 21:28:33 +0800 |
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committer | Taylor Gerring <taylor.gerring@gmail.com> | 2015-02-16 21:28:33 +0800 |
commit | 702218008ee2b6d708d6b2821cdef80736bb3224 (patch) | |
tree | d55ff7ce88187082378e7d8e4c2f3aad14d23b4e /Godeps/_workspace/src/github.com/obscuren/otto/parser/scope.go | |
parent | 202362d9258335c695eb75f55f4be74a50a1af33 (diff) | |
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Add versioned dependencies from godep
Diffstat (limited to 'Godeps/_workspace/src/github.com/obscuren/otto/parser/scope.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/obscuren/otto/parser/scope.go | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/obscuren/otto/parser/scope.go b/Godeps/_workspace/src/github.com/obscuren/otto/parser/scope.go new file mode 100644 index 000000000..e1dbdda13 --- /dev/null +++ b/Godeps/_workspace/src/github.com/obscuren/otto/parser/scope.go @@ -0,0 +1,44 @@ +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 +} |