org.eclipse.jdt.internal.compiler.ast.ASTNode node = (org.eclipse.jdt.internal.compiler.ast.ASTNode) this.newAstToOldAst.get(expression);
if (node instanceof org.eclipse.jdt.internal.compiler.ast.Expression) {
org.eclipse.jdt.internal.compiler.ast.Expression compilerExpression = (org.eclipse.jdt.internal.compiler.ast.Expression) node;
Constant constant = compilerExpression.constant;
if (constant != null && constant != Constant.NotAConstant) {
switch (constant.typeID()) {
case TypeIds.T_int : return new Integer(constant.intValue());
case TypeIds.T_byte : return new Byte(constant.byteValue());
case TypeIds.T_short : return new Short(constant.shortValue());
case TypeIds.T_char : return new Character(constant.charValue());
case TypeIds.T_float : return new Float(constant.floatValue());