FIR checker: substitute type parameters in dispatch receiver type

Consider the following code:

```
fun test(a: List<String>) {
  a.first()
}
```

The dispatch receiver type of `first` in this case is `List<T>` before
this change. After this change, it's `List<String>`.

In addition, this change also replace the dispatch receiver type with
the more specific type if available. For example, consider the following

```
class MyList: ArrayList<String>()

fun test(a: MyList) {
  a.get(0)
}
```
The dispatch receiver type of `get` is `MyList`, instead of
`ArrayList<String>`. That is, a fake override is created in this case.
This commit is contained in:
Tianyu Geng
2021-08-06 14:56:37 -07:00
committed by teamcityserver
parent c047adbaec
commit 765cad8448
61 changed files with 342 additions and 145 deletions
@@ -143,7 +143,7 @@ digraph flow_kt {
color=blue
64 [label="Enter loop condition"];
65 [label="Access variable R|<local>/<iterator>|"];
66 [label="Function call: R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()"];
66 [label="Function call: R|<local>/<iterator>|.R|SubstitutionOverride<kotlin/collections/IntIterator.hasNext: R|kotlin/Boolean|>|()"];
67 [label="Exit loop condition"];
}
subgraph cluster_20 {
@@ -28,7 +28,7 @@ FILE: flow.kt
Boolean(true) -> {
{
lval <iterator>: R|kotlin/collections/IntIterator| = Int(0).R|kotlin/Int.rangeTo|(Int(0)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
while(R|<local>/<iterator>|.R|SubstitutionOverride<kotlin/collections/IntIterator.hasNext: R|kotlin/Boolean|>|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
R|<local>/x|.R|SubstitutionOverride<kotlin/Function0.invoke: R|kotlin/Unit|>|()
}