Use upper-cased versions of built-in types in type descriptions (PY-16303)

python/src/com/jetbrains/python/codeInsight/PyTypingTypeProvider.java

@@ -42,6 +42,7 @@ import java.util.regex.Pattern;
  */
 public class PyTypingTypeProvider extends PyTypeProviderBase {
   public static final Pattern TYPE_COMMENT_PATTERN = Pattern.compile("# *type: *(.*)");
+
   private static ImmutableMap<String, String> COLLECTION_CLASSES = ImmutableMap.<String, String>builder()
     .put("typing.List", "list")
     .put("typing.Dict", "dict")
@@ -59,6 +60,13 @@ public class PyTypingTypeProvider extends PyTypeProviderBase {
     .put("typing.MutableSet", PyNames.COLLECTIONS + "." + "MutableSet")
     .build();
 
+  public static ImmutableMap<String, String> TYPING_COLLECTION_CLASSES = ImmutableMap.<String, String>builder()
+    .put("list", "List")
+    .put("dict", "Dict")
+    .put("set", "Set")
+    .put("frozenset", "FrozenSet")
+    .build();
+
   private static ImmutableSet<String> GENERIC_CLASSES = ImmutableSet.<String>builder()
     .add("typing.Generic")
     .add("typing.AbstractGeneric")

python/src/com/jetbrains/python/documentation/PyTypeModelBuilder.java

@@ -20,6 +20,7 @@ import com.google.common.collect.Collections2;
 import com.google.common.collect.Maps;
 import com.intellij.psi.PsiElement;
 import com.jetbrains.python.PyNames;
+import com.jetbrains.python.codeInsight.PyTypingTypeProvider;
 import com.jetbrains.python.psi.types.*;
 import com.jetbrains.python.toolbox.ChainIterable;
 import org.jetbrains.annotations.NotNull;
@@ -405,7 +406,9 @@ public class PyTypeModelBuilder {
         add("...");
         return;
       }
-      addType(collectionOf.collectionName);
+      final String name = collectionOf.collectionName;
+      final String typingName = PyTypingTypeProvider.TYPING_COLLECTION_CLASSES.get(name);
+      addType(typingName != null ? typingName : name);
       add("[");
       processList(collectionOf.elementTypes, ", ");
       add("]");

python/testData/inspections/PyTypeCheckerInspection/Generator.py

@@ -79,7 +79,7 @@ def test():
         return xs
     return [
         ''.join(gen(10)),
-        f_1(<warning descr="Expected type 'list[int]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
+        f_1(<warning descr="Expected type 'List[int]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_2(<warning descr="Expected type 'Sequence[int]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_3(<warning descr="Expected type 'Container[int]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_4(<warning descr="Expected type 'Iterator[int]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
@@ -89,7 +89,7 @@ def test():
         f_8(<warning descr="Expected type 'Container', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_9(gen(11)),
         f_10(gen(11)),
-        f_11(<warning descr="Expected type 'list[Union[str, unicode]]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
+        f_11(<warning descr="Expected type 'List[Union[str, unicode]]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_12(<warning descr="Expected type 'Sequence[Union[str, unicode]]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_13(<warning descr="Expected type 'Container[Union[str, unicode]]', got '__generator[str, Any, None]' instead">gen(11)</warning>),
         f_14(gen(11)),

python/testData/inspections/PyTypeCheckerInspection/GenericUserFunctions.py

@@ -40,7 +40,7 @@ def test():
     print(result)
     print(result + <warning descr="Expected type 'Number', got 'str' instead">'foo'</warning>)
 
-    f2(1, <weak_warning descr="Expected type 'list[int]' (matched generic type 'list[TypeVar('T')]'), got 'list[str]' instead">['foo']</weak_warning>, 'bar')
+    f2(1, <weak_warning descr="Expected type 'List[int]' (matched generic type 'List[TypeVar('T')]'), got 'List[str]' instead">['foo']</weak_warning>, 'bar')
 
     result = f3(1, 'foo', True)
     f4(<warning descr="Expected type 'Tuple[bool, int, str]', got 'Tuple[int, str, bool]' instead">result</warning>)

python/testData/inspections/PyTypeCheckerInspection/ListTuple.py

@@ -7,5 +7,5 @@ def f(spam, eggs):
 
 
 def test():
-    f(<warning descr="Expected type 'list[Union[str, unicode]]', got 'list[int]' instead">[1, 2, 3]</warning>,
+    f(<warning descr="Expected type 'List[Union[str, unicode]]', got 'List[int]' instead">[1, 2, 3]</warning>,
       <warning descr="Expected type 'Tuple[bool, int, unicode]', got 'Tuple[bool, int, str]' instead">(False, 2, '')</warning>)

python/testData/pyi/inspections/overloads/Overloads.py

@@ -4,7 +4,7 @@ from m1 import f, g, C, stub_only, Gen
 def test_overloaded_function(x):
     g(<warning descr="Expected type 'dict', got 'int' instead">f(10)</warning>)
     g(<warning descr="Expected type 'dict', got 'str' instead">f('foo')</warning>)
-    g(<warning descr="Expected type 'dict', got 'Union[int, str]' instead">f(<warning descr="Expected type 'int', got 'dict[int, int]' instead">{1: 2}</warning>)</warning>)
+    g(<warning descr="Expected type 'dict', got 'Union[int, str]' instead">f(<warning descr="Expected type 'int', got 'Dict[int, int]' instead">{1: 2}</warning>)</warning>)
     g(<warning descr="Expected type 'dict', got 'Union[int, str]' instead">f(x)</warning>)
 
 
@@ -12,21 +12,21 @@ def test_overloaded_subscription_operator_parameters():
     c = C()
     print(c[10])
     print(c['foo'])
-    print(c[<warning descr="Expected type 'int', got 'dict[int, int]' instead">{1: 2}</warning>])
+    print(c[<warning descr="Expected type 'int', got 'Dict[int, int]' instead">{1: 2}</warning>])
 
 
 def test_overloaded_binary_operator_parameters():
     c = C()
     print(c + 10)
     print(c + 'foo')
-    print(c + <warning descr="Expected type 'int', got 'dict[int, int]' instead">{1: 2}</warning>)
+    print(c + <warning descr="Expected type 'int', got 'Dict[int, int]' instead">{1: 2}</warning>)
 
 
 def test_stub_only_function(x):
     g(<warning descr="Expected type 'dict', got 'int' instead">stub_only(10)</warning>)
     g(<warning descr="Expected type 'dict', got 'str' instead">stub_only('foo')</warning>)
     g(<warning descr="Expected type 'dict', got 'Union[int, str]' instead">stub_only(x)</warning>)
-    g(<warning descr="Expected type 'dict', got 'Union[int, str]' instead">stub_only(<warning descr="Expected type 'int', got 'dict[int, int]' instead">{1: 2}</warning>)</warning>)
+    g(<warning descr="Expected type 'dict', got 'Union[int, str]' instead">stub_only(<warning descr="Expected type 'int', got 'Dict[int, int]' instead">{1: 2}</warning>)</warning>)
 
 
 def tset_overloaded_generics(x):

python/testSrc/com/jetbrains/python/PyTypeTest.java

@@ -48,7 +48,7 @@ public class PyTypeTest extends PyTestCase {
            "expr = '1' + '2'");
     doTest("Union[str, unicode]",
            "expr = '%s' % ('a')");
-    doTest("list[int]",
+    doTest("List[int]",
            "expr = [1] + [2]");
   }
 
@@ -97,7 +97,7 @@ public class PyTypeTest extends PyTestCase {
   }
 
   public void testSet() {
-    doTest("set[int]",
+    doTest("Set[int]",
            "expr = {1, 2, 3}");
   }
 
@@ -154,7 +154,7 @@ public class PyTypeTest extends PyTestCase {
   }
 
   public void testSliceType() {
-    doTest("list[int]",
+    doTest("List[int]",
            "l = [1, 2, 3]; expr = l[0:1]");
   }
 
@@ -439,7 +439,7 @@ public class PyTypeTest extends PyTestCase {
 
   // PY-7215
   public void testFunctionWithNestedGenerator() {
-    doTest("list[int]",
+    doTest("List[int]",
            "def f():\n" +
            "    def g():\n" +
            "        yield 10\n" +
@@ -619,7 +619,7 @@ public class PyTypeTest extends PyTestCase {
   }
 
   public void testFunctionTypeAsUnificationArgument() {
-    doTest("Union[list[int], str, unicode]",
+    doTest("Union[List[int], str, unicode]",
            "def map2(f, xs):\n" +
            "    '''\n" +
            "    :type f: (T) -> V | None\n" +

python/testSrc/com/jetbrains/python/PyTypingTest.java

@@ -111,7 +111,7 @@ public class PyTypingTest extends PyTestCase {
   }
 
   public void testBuiltinListWithParameter() {
-    doTest("list[int]",
+    doTest("List[int]",
            "from typing import List\n" +
            "\n" +
            "def f(expr: List[int]):\n" +
@@ -119,7 +119,7 @@ public class PyTypingTest extends PyTestCase {
   }
 
   public void testBuiltinDictWithParameters() {
-    doTest("dict[str, int]",
+    doTest("Dict[str, int]",
            "from typing import Dict\n" +
            "\n" +
            "def f(expr: Dict[str, int]):\n" +
@@ -379,7 +379,7 @@ public class PyTypingTest extends PyTestCase {
 
   // PY-16303
   public void testAssignedTypeInDocstring() {
-    doTest("list[int]",
+    doTest("List[int]",
            "from typing import List\n" +
            "\n" +
            "IntList = List[int]\n" +
@@ -393,7 +393,7 @@ public class PyTypingTest extends PyTestCase {
 
   // PY-16303
   public void testParameterAssignedTypeInDocstring() {
-    doTest("Union[int, list[int]]",
+    doTest("Union[int, List[int]]",
            "from typing import List, Union\n" +
            "\n" +
            "IntList = List[int]\n" +