fix error check and context setting

Author: mschuchard

CHANGELOG.md

@@ -4,6 +4,9 @@
 - Optimize `has_value` function logic.
 - Modify missing key for `key(s)_delete` function from error to warning.
 - Protect against overflows in `combinations` and `factorial` functions.
+- Fix input parameter reflection error check in `sqrt` function.
+- Improve error messages for invalid input parameters in `combinations` function.
+- Validate divisor is not 0 in `mod` function.
 
 ### 2.2.0
 - Rename former `sort_list` to `sort_list_string`.

stdlib/number/sqrt.go

@@ -44,6 +44,11 @@ func (*sqrtFunction) Run(ctx context.Context, req function.RunRequest, resp *fun
 	var inputNum float64
 
 	resp.Error = req.Arguments.Get(ctx, &inputNum)
+	if resp.Error != nil {
+		return
+	}
+
+	ctx = tflog.SetField(ctx, "sqrt: number", inputNum)
 
 	// validate input parameters
 	if inputNum < 0 {
@@ -57,8 +62,6 @@ func (*sqrtFunction) Run(ctx context.Context, req function.RunRequest, resp *fun
 		return
 	}
 
-	ctx = tflog.SetField(ctx, "sqrt: number", inputNum)
-
 	// determine the square root
 	sqrt := math.Sqrt(inputNum)
 	ctx = tflog.SetField(ctx, "sqrt: square root", sqrt)