--- /dev/null
+package org.simantics.spreadsheet.solver.formula;
+
+import org.simantics.spreadsheet.Spreadsheets;
+import org.simantics.spreadsheet.solver.formula.parser.ast.AstArgList;
+
+public class AndFormulaFunction implements CellFormulaFunction<Object> {
+
+ @Override
+ public Object evaluate(CellValueVisitor visitor, AstArgList args) {
+ if (args.values.size() == 0)
+ throw new IllegalStateException();
+ Boolean finalResult = Boolean.TRUE;
+ for (int i = 0; i < args.values.size(); i++) {
+ Object res = (args.values.get(i).accept(visitor));
+ FormulaError2 err = FormulaError2.forObject(res);
+ if(err!=null) return err.getString();
+
+ if ((res instanceof Boolean && !((Boolean)res)) || !Spreadsheets.asBoolean(res))
+ finalResult = Boolean.FALSE;
+ }
+ return finalResult;
+ }
+}
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