func()

in tflint-ruleset-aws-serverless/rules/aws_lambda_event_source_mapping_failure_destination.go [53:137]

• 67 lines of code
• 8 McCabe index (conditional complexity)

func (r *AwsLambdaEventSourceMappingFailureDestinationRule) Check(runner tflint.Runner) error {
	return runner.WalkResources(r.resourceType, func(resource *configs.Resource) error {

		// Block 1 - destination_config

		body, _, diags := resource.Config.PartialContent(&hcl.BodySchema{
			Blocks: []hcl.BlockHeaderSchema{
				{
					Type: r.block1Name,
				},
			},
		})

		if diags.HasErrors() {
			return diags
		}

		blocks := body.Blocks.OfType(r.block1Name)
		if len(blocks) != 1 {
			runner.EmitIssue(
				r,
				fmt.Sprintf("\"%s\" is not present.", r.block1Name),
				body.MissingItemRange,
			)

			return nil
		}

		// Block 2 - on_failure

		body, _, diags = blocks[0].Body.PartialContent(&hcl.BodySchema{
			Blocks: []hcl.BlockHeaderSchema{
				{
					Type: r.block2Name,
				},
			},
		})

		if diags.HasErrors() {
			return diags
		}

		blocks = body.Blocks.OfType(r.block2Name)
		if len(blocks) != 1 {
			runner.EmitIssue(
				r,
				fmt.Sprintf("\"%s\" is not present.", r.block2Name),
				body.MissingItemRange,
			)

			return nil
		}

		// Attribute - destination_arn

		body, _, diags = blocks[0].Body.PartialContent(&hcl.BodySchema{
			Attributes: []hcl.AttributeSchema{
				{
					Name: r.attributeName,
				},
			},
		})

		if diags.HasErrors() {
			return diags
		}

		var attrValue string
		attribute, ok := body.Attributes[r.attributeName]
		if !ok {
			runner.EmitIssue(
				r,
				fmt.Sprintf("\"%s\" is not present.", r.attributeName),
				body.MissingItemRange,
			)
		} else {
			err := runner.EvaluateExpr(attribute.Expr, &attrValue, nil)
			if err != nil {
				return err
			}
		}

		return nil
	})
}