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lightning-sunbird  0.9+nobinonly
txLiteralExpr.cpp
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00002 /* ***** BEGIN LICENSE BLOCK *****
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00015  * The Original Code is TransforMiiX XSLT processor code.
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00017  * The Initial Developer of the Original Code is
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00038 
00039 #include "Expr.h"
00040 #include "ExprResult.h"
00041 
00042 txLiteralExpr::txLiteralExpr(double aDbl)
00043     : mValue(new NumberResult(aDbl, nsnull))
00044 {
00045 }
00046 
00047 txLiteralExpr::txLiteralExpr(const nsAString& aStr)
00048     : mValue(new StringResult(aStr, nsnull))
00049 {
00050 }
00051 
00052 nsresult
00053 txLiteralExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
00054 {
00055     NS_ENSURE_TRUE(mValue, NS_ERROR_OUT_OF_MEMORY);
00056 
00057     *aResult = mValue;
00058     NS_ADDREF(*aResult);
00059 
00060     return NS_OK;
00061 }
00062 
00063 #ifdef TX_TO_STRING
00064 void
00065 txLiteralExpr::toString(nsAString& aStr)
00066 {
00067     switch (mValue->getResultType()) {
00068         case txAExprResult::NUMBER:
00069         {
00070             Double::toString(mValue->numberValue(), aStr);
00071             return;
00072         }
00073         case txAExprResult::STRING:
00074         {
00075             StringResult* strRes =
00076                 NS_STATIC_CAST(StringResult*, NS_STATIC_CAST(txAExprResult*,
00077                                                              mValue));
00078             PRUnichar ch = '\'';
00079             if (strRes->mValue.FindChar(ch) != kNotFound) {
00080                 ch = '\"';
00081             }
00082             aStr.Append(ch);
00083             aStr.Append(strRes->mValue);
00084             aStr.Append(ch);
00085             return;
00086         }
00087     }
00088 }
00089 #endif