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FIR checker: substitute type parameters in dispatch receiver type

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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
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compiler/fir/analysis-tests/testData/resolve/inference/nestedExtensionFunctionType.fir.txt
Vendored
+2 -2
View File
@@ -7,7 +7,7 @@ FILE: nestedExtensionFunctionType.kt
public final fun test_1(a: R|A|, ys: R|kotlin/collections/List<@ExtensionFunctionType kotlin/Function1<A, kotlin/Unit>>|): R|kotlin/Unit| {
{
lval <iterator>: R|kotlin/collections/Iterator<@ExtensionFunctionType kotlin/Function1<A, kotlin/Unit>>| = R|<local>/ys|.R|SubstitutionOverride<kotlin/collections/List.iterator: R|kotlin/collections/Iterator<@ExtensionFunctionType kotlin/Function1<A, kotlin/Unit>>|>|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
while(R|<local>/<iterator>|.R|SubstitutionOverride<kotlin/collections/Iterator.hasNext: R|kotlin/Boolean|>|()) {
lval y: R|(A) -> kotlin/Unit| = R|<local>/<iterator>|.R|SubstitutionOverride<kotlin/collections/Iterator.next: R|(A) -> kotlin/Unit|>|()
R|<local>/y|.R|SubstitutionOverride<kotlin/Function1.invoke: R|kotlin/Unit|>|(R|<local>/a|)
}
@@ -18,7 +18,7 @@ FILE: nestedExtensionFunctionType.kt
public final fun test_2(a: R|A|, vararg zs: R|kotlin/Array<out @ExtensionFunctionType kotlin/Function1<A, kotlin/Unit>>|): R|kotlin/Unit| {
{
lval <iterator>: R|kotlin/collections/Iterator<@ExtensionFunctionType kotlin/Function1<A, kotlin/Unit>>| = R|<local>/zs|.R|SubstitutionOverride<kotlin/Array.iterator: R|kotlin/collections/Iterator<CapturedType(out @ExtensionFunctionType kotlin/Function1<A, kotlin/Unit>)>|>|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
while(R|<local>/<iterator>|.R|SubstitutionOverride<kotlin/collections/Iterator.hasNext: R|kotlin/Boolean|>|()) {
lval z: R|(A) -> kotlin/Unit| = R|<local>/<iterator>|.R|SubstitutionOverride<kotlin/collections/Iterator.next: R|(A) -> kotlin/Unit|>|()
R|<local>/z|.R|SubstitutionOverride<kotlin/Function1.invoke: R|kotlin/Unit|>|(R|<local>/a|)
}