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Basic support of partially specified type arguments though a new underscore operator for type arguments

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^KT-13394
This commit is contained in:
Victor Petukhov
2021-10-21 14:23:25 +03:00
parent e057831f7f
commit b69fb6779f
35 changed files with 1212 additions and 9 deletions
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compiler/testData/psi/UnderscoredTypeArgumentsOfCall.kt
Vendored
+6
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fun main() {
val x = foo<Int, _>()
val x = foo<_, _, _>()
val x = foo<_, _, Int>()
val x = foo<_>()
}
compiler/testData/psi/UnderscoredTypeArgumentsOfCall.txt
Vendored
+140
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KtFile: UnderscoredTypeArgumentsOfCall.kt
PACKAGE_DIRECTIVE
<empty list>
IMPORT_LIST
<empty list>
FUN
PsiElement(fun)('fun')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('main')
VALUE_PARAMETER_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace(' ')
BLOCK
PsiElement(LBRACE)('{')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Int')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Int')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n')
PsiElement(RBRACE)('}')
compiler/testData/psi/UnderscoredTypeArgumentsOfCallIllegal.kt
Vendored
+6
View File
@@ -0,0 +1,6 @@
fun main() {
val y: Foo<__> = 1
val y: Foo<_, __> = 1
val y: Foo<Int, __> = 1
val y: Foo<_____, Float> = 1
}
compiler/testData/psi/UnderscoredTypeArgumentsOfCallIllegal.txt
Vendored
+134
View File
@@ -0,0 +1,134 @@
KtFile: UnderscoredTypeArgumentsOfCallIllegal.kt
PACKAGE_DIRECTIVE
<empty list>
IMPORT_LIST
<empty list>
FUN
PsiElement(fun)('fun')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('main')
VALUE_PARAMETER_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace(' ')
BLOCK
PsiElement(LBRACE)('{')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('y')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('__')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
INTEGER_CONSTANT
PsiElement(INTEGER_LITERAL)('1')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('y')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('__')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
INTEGER_CONSTANT
PsiElement(INTEGER_LITERAL)('1')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('y')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Int')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('__')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
INTEGER_CONSTANT
PsiElement(INTEGER_LITERAL)('1')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('y')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_____')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Float')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
INTEGER_CONSTANT
PsiElement(INTEGER_LITERAL)('1')
PsiWhiteSpace('\n')
PsiElement(RBRACE)('}')
compiler/testData/psi/UnderscoredTypeArgumentsOfType.kt
Vendored
+14
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@@ -0,0 +1,14 @@
fun main() {
val x = foo<Foo<_>>()
val x = foo<Foo<_>, _>()
val x = foo<Foo<_>, Int>()
val x = foo<Foo<Int, _>>()
val x = foo<Foo<Int, Foo<_>, Float>, Float>()
val y: Foo<_> = 1
val y: Foo<_, _> = 1
}
interface A : Foo<_>
typealias Foo<K> = Foo<_, K>
compiler/testData/psi/UnderscoredTypeArgumentsOfType.txt
Vendored
+326
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@@ -0,0 +1,326 @@
KtFile: UnderscoredTypeArgumentsOfType.kt
PACKAGE_DIRECTIVE
<empty list>
IMPORT_LIST
<empty list>
FUN
PsiElement(fun)('fun')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('main')
VALUE_PARAMETER_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace(' ')
BLOCK
PsiElement(LBRACE)('{')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Int')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Int')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('x')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
CALL_EXPRESSION
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Int')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Float')
PsiElement(GT)('>')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Float')
PsiElement(GT)('>')
VALUE_ARGUMENT_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace('\n\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('y')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
INTEGER_CONSTANT
PsiElement(INTEGER_LITERAL)('1')
PsiWhiteSpace('\n ')
PROPERTY
PsiElement(val)('val')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('y')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
INTEGER_CONSTANT
PsiElement(INTEGER_LITERAL)('1')
PsiWhiteSpace('\n')
PsiElement(RBRACE)('}')
PsiWhiteSpace('\n\n')
CLASS
PsiElement(interface)('interface')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('A')
PsiWhiteSpace(' ')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
SUPER_TYPE_LIST
SUPER_TYPE_ENTRY
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiWhiteSpace('\n\n')
TYPEALIAS
PsiElement(typealias)('typealias')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('Foo')
TYPE_PARAMETER_LIST
PsiElement(LT)('<')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('K')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('K')
PsiElement(GT)('>')
compiler/testData/psi/UnderscoredTypeParameters.kt
Vendored
+7
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@@ -0,0 +1,7 @@
class A<_> {}
typealias Foo<K, _> = Foo<K>
fun <K : T, _, T> foo() {}
fun <K, _: K> foo() {}
compiler/testData/psi/UnderscoredTypeParameters.txt
Vendored
+108
View File
@@ -0,0 +1,108 @@
KtFile: UnderscoredTypeParameters.kt
PACKAGE_DIRECTIVE
<empty list>
IMPORT_LIST
<empty list>
CLASS
PsiElement(class)('class')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('A')
TYPE_PARAMETER_LIST
PsiElement(LT)('<')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
CLASS_BODY
PsiElement(LBRACE)('{')
PsiElement(RBRACE)('}')
PsiWhiteSpace('\n\n')
TYPEALIAS
PsiElement(typealias)('typealias')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('Foo')
TYPE_PARAMETER_LIST
PsiElement(LT)('<')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('K')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('_')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(EQ)('=')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('Foo')
TYPE_ARGUMENT_LIST
PsiElement(LT)('<')
TYPE_PROJECTION
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('K')
PsiElement(GT)('>')
PsiWhiteSpace('\n\n')
FUN
PsiElement(fun)('fun')
PsiWhiteSpace(' ')
TYPE_PARAMETER_LIST
PsiElement(LT)('<')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('K')
PsiWhiteSpace(' ')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('T')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('_')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('T')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('foo')
VALUE_PARAMETER_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace(' ')
BLOCK
PsiElement(LBRACE)('{')
PsiElement(RBRACE)('}')
PsiWhiteSpace('\n\n')
FUN
PsiElement(fun)('fun')
PsiWhiteSpace(' ')
TYPE_PARAMETER_LIST
PsiElement(LT)('<')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('K')
PsiElement(COMMA)(',')
PsiWhiteSpace(' ')
TYPE_PARAMETER
PsiElement(IDENTIFIER)('_')
PsiElement(COLON)(':')
PsiWhiteSpace(' ')
TYPE_REFERENCE
USER_TYPE
REFERENCE_EXPRESSION
PsiElement(IDENTIFIER)('K')
PsiElement(GT)('>')
PsiWhiteSpace(' ')
PsiElement(IDENTIFIER)('foo')
VALUE_PARAMETER_LIST
PsiElement(LPAR)('(')
PsiElement(RPAR)(')')
PsiWhiteSpace(' ')
BLOCK
PsiElement(LBRACE)('{')
PsiElement(RBRACE)('}')