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/*
* java_cast.tc - Cast and other type cast operators
*
* Copyright (C) 2001 Southern Storm Software, Pty Ltd.
* Copyright (C) 2003 Gopal.V
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Perform semantic analysis for a user-level cast operator.
*/
ILNode_JSemAnalysis(ILNode_UserCast)
{
JavaSemValue type;
JavaSemValue value;
/* ILEvalValue evalValue;*/
/* Perform semantic analysis on the type and value expressions */
type = ILNode_JSemAnalysis(node->expr1, info, &(node->expr1));
value = ILNode_JSemAnalysis(node->expr2, info, &(node->expr2));
/* Validate the value */
if(!JavaSemIsValue(value))
{
CCErrorOnLine(yygetfilename(node->expr2), yygetlinenum(node->expr2),
"invalid value supplied to cast");
if(JavaSemIsType(type))
{
JavaSemSetRValue(value, JavaSemGetType(type));
}
else
{
JavaSemSetRValue(value, ILType_Int32);
}
}
/* Validate the type */
if(!JavaSemIsType(type))
{
CCErrorOnLine(yygetfilename(node->expr1), yygetlinenum(node->expr1),
"invalid type supplied to cast");
JavaSemSetType(type, JavaSemGetType(value));
}
/* Determine if we can cast between the types */
if(!ILCast(info, node->expr2, &(node->expr2),
JavaSemGetType(value), JavaSemGetType(type),69))
{
CCErrorOnLine(yygetfilename(node), yygetlinenum(node),
"cannot cast from `%s' to `%s'",
JavaTypeToName(JavaSemGetType(value)),
JavaTypeToName(JavaSemGetType(type)));
}
else
{
/* Replace this node with the converted node */
*parent = node->expr2;
}
/* Return an rvalue of the final type to the caller */
/*
if(ILNode_EvalConst(*parent, info, &evalValue))
{
JavaSemSetConstant(value, JavaSemGetType(type), evalValue);
JavaSemReplaceWithConstant(parent, value);
}
else
{*/
JavaSemSetRValue(value, JavaSemGetType(type));
// }
return value;
}
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