fbsamples/kotlin_ast_tools

Utilities and examples used in Meta to simplify migration from Java to Kotlin and maintenance of Kotlin code.

kotlin_ast_tools's Issues

Update documentation for running project

./gradlew run <kotlin file> command is failing.

The correct command is
./gradlew run --args <kotlin file path>
or

./gradlew run --args="<kotlin_file_path>"

or for multiple files

./gradlew run --args="<kotlin_file_path_1> <kotlin_file_path_2>"

Is it possible to resolve types from other files using Kotlin Compiler APIs?

By just using Kotlin Compiler APIs to parse the AST, we can only resolve AST for one particular file. But is it possible to resolve types from other files?

To resolve types and other class information of the class that is in some other file, we would need bindingContext. I assume when we are developing a compiler plugin we would get the binding context. But if we are solely relying on Kotlin compiler APIs and parsing on one file at a time, is it possible to resolve the types of classes in other files?

Relevant questions:
https://discuss.kotlinlang.org/t/how-to-get-declaring-ktfile-ktclass-using-ktcallexpression/26271/1
https://stackoverflow.com/questions/44986763/psitreevisitor-how-to-find-out-type-of-ktcallexpression-receiver

Cannot match multiline template

Hello, thank you for sharing this tool. I found a problem when trying to match multiline:

given:

    private var otherField: String? = null

    @JvmField
    @Inject
    var fileDownloader: FileDownloader? = null

Matcher:

            .replaceAllWithVariables<KtExpression>(
                matcher =
                template {
                    val a by match<KtExpression>()
                    val b by match<KtExpression>()
                    """
                        @JvmField
                        @Inject
                        var $a: $b? = null
                    """.trimIndent()
                },
                replaceWith = { (result, variables) ->
                    val a by variables
                    val b by variables
                    """
                        @Inject
                        lateinit var $a: $b
                    """.trimIndent()
                }

this tool will throw exception

Exception in thread "main" java.lang.IllegalStateException: Template references variable $a as a matcher of KtProperty, but variable was defined as a matcher of KtExpression