Adopt spreadsheet changes made in Balas development

[simantics/platform.git] / bundles / org.simantics.spreadsheet / src / org / simantics / spreadsheet / solver / formula / IsErrorFormulaFunction.java

diff --git a/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/solver/formula/IsErrorFormulaFunction.java b/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/solver/formula/IsErrorFormulaFunction.java
new file mode 100644 (file)
index 0000000..c2680cb
--- /dev/null
+++ b/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/solver/formula/IsErrorFormulaFunction.java
@@ -0,0 +1,19 @@
+package org.simantics.spreadsheet.solver.formula;
+
+import org.simantics.spreadsheet.solver.formula.parser.ast.AstArgList;
+
+public class IsErrorFormulaFunction implements CellFormulaFunction<Object>{
+
+    @Override
+    public Object evaluate(CellValueVisitor visitor, AstArgList args) {
+
+        if (args.values.size() != 1) throw new IllegalStateException();
+
+        Object condition = args.values.get(0).accept(visitor);
+        if(condition instanceof String){
+            FormulaError2 error = FormulaError2.forString((String)condition);
+            return (error!=null);
+        }
+        return false;
+    }
+}
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