[FIR] add support for implementation by delgation

This commit handles "subclass: super-interface by delegate-expression".

During Psi2Fir, for each delegate, we add to the subclass a synthetic
field (which has type super-interface), and an assignment of the
delegate-expression to the synthetic field in the primary constructor,
so that the delegate-expression can be resolved and transformed along
the way.

During Fir2Ir, we look up delegatable members from the super-interface
and generate corresponding functions/properties for the subclass.

TODO: support for generic delegatable members and generic
super-interface.

This commit is contained in:

Juan Chen

2020-06-08 21:00:49 -07:00

committed by

Mikhail Glukhikh

parent 1d45dc8d81

commit d163853c97

52 changed files with 806 additions and 187 deletions

									
										compiler/testData/codegen/box/toArray/toArrayFromJava.kt
									
Vendored

		-1
	
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				@@ -1,4 +1,3 @@

				// IGNORE_BACKEND_FIR: JVM_IR

				// TARGET_BACKEND: JVM

				// The old backend thinks `toArray(): Array<Int?>` is the same as `toArray(): Array<Any?>`

				// IGNORE_BACKEND: JVM