typetools | Tools for working with generic types | Genomics library
kandi X-RAY | typetools Summary
kandi X-RAY | typetools Summary
One of the sore points with Java involves working with type information. In particular, Java's generics do not provide a way to resolve or reify the type information for a given class. TypeTools looks to solve this by fully resolving generic type information declared on any class, interface, lambda expression or method.
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Top functions reviewed by kandi - BETA
- Returns a string representation of this type
- Returns actual type arguments
- Returns the original type
- Compares two parameterized type arguments
- Returns a hashCode of the original type arguments
- Disables cached type variables
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Trending Discussions on typetools
QUESTION
I have the below class structure:
...ANSWER
Answered 2019-Jun-03 at 19:43Since your consumer classes declare the field a
with no type variables, all the typing information you need will be present at runtime.
While it's possible to achieve what you're asking using reflection directly, it gets insane fast, so I'd highly recommend using GenTyRef or GeAnTyRef (an enhanced fork that I maintain).
QUESTION
Let us have the following feature file,
...ANSWER
Answered 2018-Dec-01 at 11:16Full disclosure: I wrote the data table module for Cucumber.
Manually mapping objects from and to data tables is time consuming, boring and error prone. This is best left to an object mapper. Additionally the implementation used to compare a table to List>
contained magic, flamethrowers and gotchas. So I thought it best to leave it out.
Solution 1
The first thing you want to do is upgrade to v4.2.0.
Then put the following configuration somewhere on the glue path. The object mapper is from Jackson. It usually comes with Spring.
QUESTION
I am trying to implement a simple subtyping check for the checker-framework.
It does basically work, but I get an error related to lambda-usage that I don't understand.
I've created a simple test-project on github: checkerfw-test so that anyone can easily reproduce the issue.
The typesystem that I use is much like the RegEx
example in the docs/src.
Here's a link to my types:
IdDomainObject
is the top typeIdUser
,IdCustomer
are the custom types that should not be assignable to each otherIdBottom
is the bottom type
The compilation of my testFromCallable2() function:
...ANSWER
Answered 2017-Sep-18 at 16:47The Checker Framework doesn't yet fully implement Java 8 type inference. See Issue #979. You can work around this limitation by explicitly specifying the type argument to fromCallable
.
QUESTION
I refer to the nullness-example in the docs (checker-framework version: 2.1.14
)
When I run the example as recommended to check NullnessExampleWithWarnings.java:
...ANSWER
Answered 2017-Sep-08 at 20:59Sections 3.1 and 3.8 of the Checker Framework manual suggest using -AsuppressWarnings=uninitialized
rather than -AsuppressWarnings=initialization
. That works for your example.
The reason for that recommendation is an implementation detail of the Nullness and Initialization Checkers: they are actually the same checker, rather than being two separate checkers that are aggregated together.
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You can use typetools like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the typetools component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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