/// <summary>
/// Parses an expression in text form for later evaluation.
/// </summary>
/// <param name="pszCode">The expression to be parsed.</param>
/// <param name="dwFlags">A combination of flags from the PARSEFLAGS enumeration that controls parsing.</param>
/// <param name="nRadix">The radix to be used in parsing any numerical information in pszCode.</param>
/// <param name="ppExpr">Returns the IDebugExpression2 object that represents the parsed expression, which is ready for binding and evaluation.</param>
/// <param name="pbstrError">Returns the error message if the expression contains an error.</param>
/// <param name="pichError">Returns the character index of the error in pszCode if the expression contains an error.</param>
/// <returns>If successful, returns S_OK; otherwise, returns an error code.</returns>
/// <remarks>
/// When this method is called, a debug engine (DE) should parse the expression and validate it for correctness.
/// The pbstrError and pichError parameters may be filled in if the expression is invalid.
///
/// Note that the expression is not evaluated, only parsed. A later call to the IDebugExpression2.EvaluateSync
/// or IDebugExpression2.EvaluateAsync methods evaluates the parsed expression.
/// </remarks>
public int ParseText(string pszCode, enum_PARSEFLAGS dwFlags, uint nRadix, out IDebugExpression2 ppExpr, out string pbstrError, out uint pichError)
{
if (pszCode == null)
throw new ArgumentNullException("pszCode");
if (pszCode.Length == 0)
throw new ArgumentException();
// dwFlags=0 in the Immediate window
if (dwFlags != enum_PARSEFLAGS.PARSE_EXPRESSION && dwFlags != 0)
throw new NotImplementedException();
try
{
var expressionInput = new ANTLRStringStream(pszCode);
var expressionUnicodeInput = new JavaUnicodeStream(expressionInput);
var expressionLexer = new Java2Lexer(expressionUnicodeInput);
var expressionTokens = new CommonTokenStream(expressionLexer);
var expressionParser = new Java2Parser(expressionTokens);
IAstRuleReturnScope<CommonTree> result = expressionParser.standaloneExpression();
ppExpr = new JavaDebugExpression(this, result.Tree, pszCode);
pbstrError = null;
pichError = 0;
return VSConstants.S_OK;
}
catch (RecognitionException e)
{
ppExpr = null;
pbstrError = e.Message;
pichError = (uint)Math.Max(0, e.Index);
return VSConstants.E_FAIL;
}
}
/// <summary>
/// Parses an expression in text form for later evaluation.
/// </summary>
/// <param name="pszCode">The expression to be parsed.</param>
/// <param name="dwFlags">A combination of flags from the PARSEFLAGS enumeration that controls parsing.</param>
/// <param name="nRadix">The radix to be used in parsing any numerical information in pszCode.</param>
/// <param name="ppExpr">Returns the IDebugExpression2 object that represents the parsed expression, which is ready for binding and evaluation.</param>
/// <param name="pbstrError">Returns the error message if the expression contains an error.</param>
/// <param name="pichError">Returns the character index of the error in pszCode if the expression contains an error.</param>
/// <returns>If successful, returns S_OK; otherwise, returns an error code.</returns>
/// <remarks>
/// When this method is called, a debug engine (DE) should parse the expression and validate it for correctness.
/// The pbstrError and pichError parameters may be filled in if the expression is invalid.
///
/// Note that the expression is not evaluated, only parsed. A later call to the IDebugExpression2.EvaluateSync
/// or IDebugExpression2.EvaluateAsync methods evaluates the parsed expression.
/// </remarks>
public int ParseText(string pszCode, enum_PARSEFLAGS dwFlags, uint nRadix, out IDebugExpression2 ppExpr, out string pbstrError, out uint pichError)
{
if (pszCode == null)
{
throw new ArgumentNullException("pszCode");
}
if (pszCode.Length == 0)
{
throw new ArgumentException();
}
// dwFlags=0 in the Immediate window
if (dwFlags != enum_PARSEFLAGS.PARSE_EXPRESSION && dwFlags != 0)
{
throw new NotImplementedException();
}
try
{
var expressionInput = new ANTLRStringStream(pszCode);
var expressionUnicodeInput = new JavaUnicodeStream(expressionInput);
var expressionLexer = new Java2Lexer(expressionUnicodeInput);
var expressionTokens = new CommonTokenStream(expressionLexer);
var expressionParser = new Java2Parser(expressionTokens);
IAstRuleReturnScope <CommonTree> result = expressionParser.standaloneExpression();
ppExpr = new JavaDebugExpression(this, result.Tree, pszCode);
pbstrError = null;
pichError = 0;
return(VSConstants.S_OK);
}
catch (RecognitionException e)
{
ppExpr = null;
pbstrError = e.Message;
pichError = (uint)Math.Max(0, e.Index);
return(VSConstants.E_FAIL);
}
}
