protected EvalNode visitCaseWhen(CONTEXT context, CaseWhenEval evalNode, Stack<EvalNode> stack) { stack.push(evalNode); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { visitIfThen(context, ifThenEval, stack); } if (evalNode.hasElse()) { visit(context, evalNode.getElse(), stack); } stack.pop(); return evalNode; }
protected EvalNode visitCaseWhen(CONTEXT context, CaseWhenEval evalNode, Stack<EvalNode> stack) { stack.push(evalNode); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { visitIfThen(context, ifThenEval, stack); } if (evalNode.hasElse()) { visit(context, evalNode.getElse(), stack); } stack.pop(); return evalNode; }
@Override public RESULT visitCaseWhen(CONTEXT context, CaseWhenEval evalNode, Stack<EvalNode> stack) { RESULT result = null; stack.push(evalNode); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { result = visitIfThen(context, ifThenEval, stack); } if (evalNode.hasElse()) { result = visit(context, evalNode.getElse(), stack); } stack.pop(); return result; }
@Override public RESULT visitCaseWhen(CONTEXT context, CaseWhenEval evalNode, Stack<EvalNode> stack) { RESULT result = null; stack.push(evalNode); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { result = visitIfThen(context, ifThenEval, stack); } if (evalNode.hasElse()) { result = visit(context, evalNode.getElse(), stack); } stack.pop(); return result; }
@Override protected EvalNode visitCaseWhen(Object o, CaseWhenEval evalNode, Stack<EvalNode> stack) { stack.push(evalNode); CaseWhenPredicate caseWhenPredicate = new CaseWhenPredicate(); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { visit(o, ifThenEval.getCondition(), stack); Expr condition = exprs.pop(); visit(o, ifThenEval.getResult(), stack); Expr result = exprs.pop(); caseWhenPredicate.addWhen(condition, result); } if (evalNode.hasElse()) { visit(o, evalNode.getElse(), stack); Expr elseResult = exprs.pop(); caseWhenPredicate.setElseResult(elseResult); } exprs.push(caseWhenPredicate); stack.pop(); return null; } }
@Override protected EvalNode visitCaseWhen(Context context, CaseWhenEval evalNode, Stack<EvalNode> stack) { stack.push(evalNode); context.append("CASE"); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { visitIfThen(context, ifThenEval, stack); } context.append("ELSE"); if (evalNode.hasElse()) { visit(context, evalNode.getElse(), stack); } stack.pop(); context.append("END"); return evalNode; }
@Override protected EvalNode visitCaseWhen(Context context, CaseWhenEval evalNode, Stack<EvalNode> stack) { stack.push(evalNode); context.append("CASE"); for (CaseWhenEval.IfThenEval ifThenEval : evalNode.getIfThenEvals()) { visitIfThen(context, ifThenEval, stack); } context.append("ELSE"); if (evalNode.hasElse()) { visit(context, evalNode.getElse(), stack); } stack.pop(); context.append("END"); return evalNode; }
if (caseWhen.hasElse() && caseWhen.getElse().equals(evalNode)) { caseWhen.setElseResult(tobeReplaced);
if (caseWhen.hasElse() && caseWhen.getElse().equals(evalNode)) { caseWhen.setElseResult(tobeReplaced);
cases[i] = new TajoGeneratorAdapter.SwitchCase(key, result); CaseWhenSwitchGenerator gen = new CaseWhenSwitchGenerator(codeGen, context, stack, cases, caseWhen.getElse()); codeGen.visit(context, caseWhen.getElse(), stack); if (caseWhen.hasElse()) { stack.push(caseWhen); codeGen.visit(context, caseWhen.getElse(), stack); stack.pop(); context.gotoLabel(afterAll);
cases[i] = new TajoGeneratorAdapter.SwitchCase(key, result); CaseWhenSwitchGenerator gen = new CaseWhenSwitchGenerator(codeGen, context, stack, cases, caseWhen.getElse()); codeGen.visit(context, caseWhen.getElse(), stack); if (caseWhen.hasElse()) { stack.push(caseWhen); codeGen.visit(context, caseWhen.getElse(), stack); stack.pop(); context.gotoLabel(afterAll);
@Override public EvalNode visitCaseWhen(Context ctx, Stack<Expr> stack, CaseWhenPredicate caseWhen) throws TajoException { CaseWhenEval caseWhenEval = new CaseWhenEval(); EvalNode condition; EvalNode result; for (CaseWhenPredicate.WhenExpr when : caseWhen.getWhens()) { condition = visit(ctx, stack, when.getCondition()); result = visit(ctx, stack, when.getResult()); caseWhenEval.addIfCond(condition, result); } if (caseWhen.hasElseResult()) { caseWhenEval.setElseResult(visit(ctx, stack, caseWhen.getElseResult())); } // Getting the widest type from all if-then expressions and else expression. DataType widestType = caseWhenEval.getIfThenEvals().get(0).getResult().getValueType(); for (int i = 1; i < caseWhenEval.getIfThenEvals().size(); i++) { widestType = CatalogUtil.getWidestType(caseWhenEval.getIfThenEvals().get(i).getResult().getValueType(), widestType); } if (caseWhen.hasElseResult()) { widestType = CatalogUtil.getWidestType(widestType, caseWhenEval.getElse().getValueType()); } assertEval(widestType != null, "Invalid Type Conversion for CaseWhen"); // implicit type conversion caseWhenEval = (CaseWhenEval) convertType(ctx, caseWhenEval, widestType); return caseWhenEval; }
@Override public EvalNode visitCaseWhen(Context ctx, Stack<Expr> stack, CaseWhenPredicate caseWhen) throws TajoException { CaseWhenEval caseWhenEval = new CaseWhenEval(); EvalNode condition; EvalNode result; for (CaseWhenPredicate.WhenExpr when : caseWhen.getWhens()) { condition = visit(ctx, stack, when.getCondition()); result = visit(ctx, stack, when.getResult()); caseWhenEval.addIfCond(condition, result); } if (caseWhen.hasElseResult()) { caseWhenEval.setElseResult(visit(ctx, stack, caseWhen.getElseResult())); } // Getting the widest type from all if-then expressions and else expression. DataType widestType = convert(caseWhenEval.getIfThenEvals().get(0).getResult().getValueType()).getDataType(); for (int i = 1; i < caseWhenEval.getIfThenEvals().size(); i++) { widestType = CatalogUtil.getWidestType( convert(caseWhenEval.getIfThenEvals().get(i).getResult().getValueType()).getDataType(), widestType); } if (caseWhen.hasElseResult()) { widestType = CatalogUtil.getWidestType( widestType, convert(caseWhenEval.getElse().getValueType()).getDataType()); } assertEval(widestType != null, "Invalid Type Conversion for CaseWhen"); // implicit type conversion caseWhenEval = (CaseWhenEval) convertType(ctx, caseWhenEval, TypeConverter.convert(widestType)); return caseWhenEval; }
caseWhenEval.setElseResult(convertType(ctx, caseWhenEval.getElse(), toType));
caseWhenEval.setElseResult(convertType(ctx, caseWhenEval.getElse(), toType));