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return | void |
internal object GetVariableValue(VariableAction variable) { int variablekey = variable.VarKey; if (variable.IsGlobal) { ActionFrame rootFrame = (ActionFrame)this.actionStack[0]; object result = rootFrame.GetVariable(variablekey); if (result != null) { return(result); } // Variable wasn't evaluated yet if (variable.Stylesheetid == -1) { throw XsltException.Create(Res.Xslt_CircularReference, variable.NameStr); } int saveStackSize = this.actionStack.Length; ActionFrame varFrame = PushNewFrame(); varFrame.Inherit(rootFrame); varFrame.Init(variable, rootFrame.NodeSet); do { bool endOfFrame = ((ActionFrame)this.actionStack.Peek()).Execute(this); if (endOfFrame) { this.actionStack.Pop(); } } while (saveStackSize < this.actionStack.Length); Debug.Assert(saveStackSize == this.actionStack.Length); result = rootFrame.GetVariable(variablekey); Debug.Assert(result != null, "Variable was just calculated and result can't be null"); return(result); } else { return(((ActionFrame)this.actionStack.Peek()).GetVariable(variablekey)); } }