2 Commits (a15a4acf2f0e4e8a749d9cb9a46ac09f224d5e90)

Author	SHA1	Message	Date
Martin Atkins	d9603d5bc5	configs/configupgrade: Do type inference with input variables ... By collecting information about the input variables during analysis, we can return approximate type information for any references to those variables in expressions. Since Terraform 0.11 allowed maps of maps and lists of lists in certain circumstances even though this was documented as forbidden, we conservatively return collection types whose element types are unknown here, which allows us to do shallow inference on them but will cause us to get an incomplete result if any operations are performed on elements of the list or map value.	7 years ago
Martin Atkins	a2d9634dbf	configs/configupgrade: Expression type inference ... Although we can't do fully-precise type inference with access only to a single module's configuration, we can do some approximate inference using some clues within the module along with our resource type schemas. This depends on HCL's ability to pass through type information even if the input values are unknown, mapping our partial input type information into partial output type information by evaluating the same expressions. This will allow us to do some upgrades that require dynamic analysis to fully decide, by giving us three outcomes: needed, not needed, or unknown. If it's unknown then that'll be our prompt to emit a warning for the user to make a decision.	7 years ago