Fn.GetAtt Expected Scalar got Intrinsic #4870
Description
This might be another example of #2005. When I am trying to use values from CfnInclude resources I get jsii.errors.JSIIError: Expected Scalar, got {"$jsii.byref":"@aws-cdk/core.Intrinsic@10003"}
Reproduction Steps
from aws_cdk import (
core
)
app = core.App()
stack = core.Stack(app, "stack")
core.CfnInclude(stack, "RawStack", template={
"Resources": {
"MySnsTopic": {
"Type": "AWS::SNS:Topic"
}
}
}
)
core.CfnOutput(stack, "TopicName", value=core.Fn.get_att('MySnsTopic', 'TopicName'))
app.synth()Error Log
jsii.errors.JavaScriptError:
Error: Expected Scalar, got {"$jsii.byref":"@aws-cdk/core.Intrinsic@10003"}
at Object.deserialize (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:12601:23)
at Kernel._toSandbox (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7353:61)
at /tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:12777:29
at mapValues (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:13006:27)
at Object.deserialize (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:12773:20)
at Kernel._toSandbox (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7353:61)
at /tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7406:33
at Array.map (<anonymous>)
at Kernel._boxUnboxParameters (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7406:19)
at Kernel._wrapSandboxCode (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:7447:19)
at Kernel._create (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6992:26)
at Kernel.create (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6746:21)
at KernelHost.processRequest (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6521:28)
at KernelHost.run (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6464:14)
at Immediate._onImmediate (/tmp/test/venv/lib/python3.7/site-packages/jsii/_embedded/jsii/jsii-runtime.js:6467:37)
at processImmediate (internal/timers.js:439:21)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "app.py", line 15, in <module>
core.CfnOutput(stack, "TopicName", value=core.Fn.get_att('MySnsTopic', 'TopicName'))
File "/tmp/test/venv/lib/python3.7/site-packages/jsii/_runtime.py", line 66, in __call__
inst = super().__call__(*args, **kwargs)
File "/tmp/test/venv/lib/python3.7/site-packages/aws_cdk/core/__init__.py", line 3189, in __init__
jsii.create(CfnOutput, self, [scope, id, props])
File "/tmp/test/venv/lib/python3.7/site-packages/jsii/_kernel/__init__.py", line 214, in create
overrides=overrides,
File "/tmp/test/venv/lib/python3.7/site-packages/jsii/_kernel/providers/process.py", line 331, in create
return self._process.send(request, CreateResponse)
File "/tmp/test/venv/lib/python3.7/site-packages/jsii/_kernel/providers/process.py", line 316, in send
raise JSIIError(resp.error) from JavaScriptError(resp.stack)
jsii.errors.JSIIError: Expected Scalar, got {"$jsii.byref":"@aws-cdk/core.Intrinsic@10003"}
Environment
- CLI Version : 1.15.0 (build bdbe3aa)
- Framework Version: 1.15.0
- OS : Arch Linux
- Language : Python 3.7
Other
This really holds up being able to integrate or build upon old stacks.
This is 🐛 Bug Report