public Expression GetFunctionExpression(string funcname, Expression argexp, Expression argParams, ParameterExpression inputParams, Expression inputContextParam, List <InputVar> compiledInputVarsList)
{
switch (funcname)
{
case "f:substring":
if (argexp is NewArrayExpression)
{
if ((argexp as NewArrayExpression).Expressions.Count > 2)
{
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Substring",
new[] { typeof(string), typeof(int), typeof(int) }),
ExFuncs.GetArgAsString(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 1)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 2))));
}
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Substring",
new[] { typeof(string), typeof(int) }),
ExFuncs.GetArgAsString(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 1))));
}
// otherwise we need to inspect the number of args at runtime
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("SubstringRuntime",
new[] { typeof(object[]) }),
ExCasts.WrapArguments(argexp)));
case "f:length":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Length",
new[] { typeof(string) }),
ExFuncs.GetArgAsString(ExFuncs.GetArgIndex(argexp, 0))));
case "f:comma":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Comma",
new[] { typeof(string[]) }),
Expression.Call(typeof(ExCasts).GetTypeInfo().GetDeclaredMethod("UnwrapStringArray"),
ExCasts.WrapArguments(argexp))));
case "f:commaand":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("CommaAnd",
new[] { typeof(string[]) }),
Expression.Call(typeof(ExCasts).GetTypeInfo().GetDeclaredMethod("UnwrapStringArray"),
ExCasts.WrapArguments(argexp))));
case "f:replace":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Replace",
new[] { typeof(string), typeof(string), typeof(string) }),
ExFuncs.GetArgAsString(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsString(ExFuncs.GetArgIndex(argexp, 1)),
ExFuncs.GetArgAsString(ExFuncs.GetArgIndex(argexp, 2))));
default:
throw new Exception("Func '" + funcname + "' not found in library '" + GetLibraryName() + "'");
}
}
public Expression GetFunctionExpression(string funcname, Expression argexp, Expression argParams, ParameterExpression inputParams, Expression inputContextParam, List <InputVar> compiledInputVarsList)
{
switch (funcname)
{
case "f:subset":
if (argexp is NewArrayExpression)
{
if ((argexp as NewArrayExpression).Expressions.Count > 2)
{
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Subset",
new[] { typeof(object[]), typeof(int), typeof(int) }),
ExCasts.WrapArguments(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 1)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 2))));
}
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Subset",
new[] { typeof(object[]), typeof(int) }),
ExCasts.WrapArguments(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 1))));
}
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("SubsetRuntime",
new[] { typeof(object[]) }),
ExCasts.WrapArguments(argexp)));
case "f:length":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Length",
new[] { typeof(object[]) }),
ExCasts.WrapArguments(argexp)));
case "f:append":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Append",
new[] { typeof(object[]), typeof(object) }),
ExCasts.WrapArguments(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsObject(ExFuncs.GetArgIndex(argexp, 1))));
case "f:insert":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Insert",
new[] { typeof(object[]), typeof(object), typeof(int) }),
ExCasts.WrapArguments(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsObject(ExFuncs.GetArgIndex(argexp, 1)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 2))));
case "f:remove":
return(Expression.Call(Expression.Constant(this), this.GetType().GetRuntimeMethod("Remove",
new[] { typeof(object[]), typeof(int) }),
ExCasts.WrapArguments(ExFuncs.GetArgIndex(argexp, 0)),
ExFuncs.GetArgAsInt(ExFuncs.GetArgIndex(argexp, 1))));
default:
throw new Exception("Func '" + funcname + "' not found in library '" + GetLibraryName() + "'");
}
}