tflint crashes when used with --deep

[sarasonparas]

V.0.3.5 on MacOS Sierra, installed via brew.

Log output:

Panic: interface conversion: interface {} is *evaluator.Evaluator, not string
-> 0: main.main.func1: /main.go(17)
-> 1: runtime.call32: /asm_amd64.s(514)
-> 2: runtime.gopanic: /panic.go(489)
-> 3: runtime.panicdottype: /iface.go(172)
-> 4: github.com/wata727/tflint/vendor/github.com/hashicorp/hil.(*evalOutput).Eval: /eval.go(399)
-> 5: github.com/wata727/tflint/vendor/github.com/hashicorp/hil.(*evalVisitor).visit: /eval.go(207)
-> 6: github.com/wata727/tflint/vendor/github.com/hashicorp/hil.(*evalVisitor).(github.com/wata727/tflint/vendor/github.com/hashicorp/hil.visit)-fm: /eval.go(167)
-> 7: github.com/wata727/tflint/vendor/github.com/hashicorp/hil/ast.(*Output).Accept: /output.go(23)
-> 8: github.com/wata727/tflint/vendor/github.com/hashicorp/hil.(*evalVisitor).Visit: /eval.go(167)
-> 9: github.com/wata727/tflint/vendor/github.com/hashicorp/hil.internalEval: /eval.go(145)
-> 10: github.com/wata727/tflint/vendor/github.com/hashicorp/hil.Eval: /eval.go(52)
-> 11: github.com/wata727/tflint/evaluator.(*Evaluator).Eval: /evaluator.go(65)
-> 12: github.com/wata727/tflint/detector.(*Detector).evalToString: /detector.go(222)
-> 13: github.com/wata727/tflint/detector.(*AwsInstanceInvalidAMIDetector).Detect: /aws_instance_invalid_ami.go(47)
-> 14: runtime.call64: /asm_amd64.s(515)
-> 15: reflect.Value.call: /value.go(434)
-> 16: reflect.Value.Call: /value.go(302)
-> 17: github.com/wata727/tflint/detector.(*Detector).detect: /detector.go(216)
-> 18: github.com/wata727/tflint/detector.(*Detector).Detect: /detector.go(170)
-> 19: main.(*CLI).Run: /cli.go(116)
-> 20: main.main: /main.go(30)
-> 21: runtime.main: /proc.go(185)
-> 22: runtime.goexit: /asm_amd64.s(2197)

TFLint crached... :(

////////////
It crashes on this minimalistic terraform file:

module "saras_ec2" {
ami = "${module.first_ima.id}"
name = "saras_ec2"
instance_type = "t2.nano"
subnet_id = "${module.first_private_subnet.id}"
source = "./modules/ec2"
security_groups = "${module.first_sg.id}"
}
////////////
It works fine without the --deep option, and provides this output for the same file:

./modules/ec2/main.tf
NOTICE:35 "iam_instance_profile" is not specified. If you want to change it, you need to recreate instance. (Only less than Terraform 0.8.8)

Result: 1 issues (0 errors , 0 warnings , 1 notices)

[wata727]

@sarasonparas Thanks for your bug report :)
I've fixed this issue and released new version. Please try it.

[sarasonparas]

@wata727 Thanks for the quick fix, it works very well!