Implement type arguments to implicit creation

Fixes #30922

Change-Id: If9806d0ec5e1cfcc3ae3bd008f3ad3aa1f518a34
Reviewed-on: https://dart-review.googlesource.com/41261
Commit-Queue: Peter von der Ahé <[email protected]>
Reviewed-by: Dmitry Stefantsov <[email protected]>
Reviewed-by: Dan Rubel <[email protected]>

Author: peter-ahe-google

pkg/front_end/lib/src/fasta/kernel/body_builder.dart

@@ -398,7 +398,8 @@ class BodyBuilder<Arguments> extends ScopeListener<JumpTarget>
     pushQualifiedReference(beginToken.next, periodBeforeName);
     if (arguments != null) {
       push(arguments);
-      endNewExpression(beginToken);
+      buildConstructorReferenceInvocation(
+          beginToken, beginToken.offset, Constness.explicitConst);
       push(popForValue());
     } else {
       String name = pop();
@@ -2660,6 +2661,12 @@ class BodyBuilder<Arguments> extends ScopeListener<JumpTarget>
     constantContext = ConstantContext.inferred;
   }
 
+  @override
+  void beginImplicitCreationExpression(Token token) {
+    debugEvent("beginImplicitCreationExpression");
+    super.push(constantContext);
+  }
+
   @override
   void endConstLiteral(Token token) {
     debugEvent("endConstLiteral");
@@ -2671,7 +2678,12 @@ class BodyBuilder<Arguments> extends ScopeListener<JumpTarget>
   @override
   void endNewExpression(Token token) {
     debugEvent("NewExpression");
-    Token nameToken = token.next;
+    buildConstructorReferenceInvocation(
+        token.next, token.offset, Constness.explicitNew);
+  }
+
+  void buildConstructorReferenceInvocation(
+      Token nameToken, int offset, Constness constness) {
     Arguments arguments = pop();
     String name = pop();
     List<DartType> typeArguments = pop();
@@ -2697,27 +2709,26 @@ class BodyBuilder<Arguments> extends ScopeListener<JumpTarget>
     ConstantContext savedConstantContext = pop();
     if (type is TypeDeclarationBuilder) {
       Expression expression = buildConstructorInvocation(
-          type,
-          nameToken,
-          arguments,
-          name,
-          typeArguments,
-          token.charOffset,
-          optional("const", token) || optional("@", token)
-              ? Constness.explicitConst
-              : Constness.explicitNew);
+          type, nameToken, arguments, name, typeArguments, offset, constness);
       push(deferredPrefix != null
           ? wrapInDeferredCheck(expression, deferredPrefix, checkOffset)
           : expression);
     } else if (type is ErrorAccessor) {
       push(type.buildError(arguments));
     } else {
-      push(throwNoSuchMethodError(forest.literalNull(token),
+      push(throwNoSuchMethodError(storeOffset(forest.literalNull(null), offset),
           debugName(getNodeName(type), name), arguments, nameToken.charOffset));
     }
     constantContext = savedConstantContext;
   }
 
+  @override
+  void endImplicitCreationExpression(Token token) {
+    debugEvent("ImplicitCreationExpression");
+    buildConstructorReferenceInvocation(
+        token, token.offset, Constness.implicit);
+  }
+
   @override
   Expression buildConstructorInvocation(
       TypeDeclarationBuilder type,
@@ -2816,7 +2827,8 @@ class BodyBuilder<Arguments> extends ScopeListener<JumpTarget>
   @override
   void endConstExpression(Token token) {
     debugEvent("endConstExpression");
-    endNewExpression(token);
+    buildConstructorReferenceInvocation(
+        token.next, token.offset, Constness.explicitConst);
   }
 
   @override

pkg/front_end/lib/src/fasta/parser/forwarding_listener.dart

@@ -951,6 +951,16 @@ class ForwardingListener implements Listener {
     listener?.handleDottedName(count, firstIdentifier);
   }
 
+  @override
+  void beginImplicitCreationExpression(Token token) {
+    listener?.beginImplicitCreationExpression(token);
+  }
+
+  @override
+  void endImplicitCreationExpression(Token token) {
+    listener?.endImplicitCreationExpression(token);
+  }
+
   @override
   void handleEmptyStatement(Token token) {
     listener?.handleEmptyStatement(token);

pkg/front_end/lib/src/fasta/parser/listener.dart

@@ -516,6 +516,12 @@ class Listener {
     logEvent("DottedName");
   }
 
+  void beginImplicitCreationExpression(Token token) {}
+
+  void endImplicitCreationExpression(Token token) {
+    logEvent("ImplicitCreationExpression");
+  }
+
   void beginInitializedIdentifier(Token token) {}
 
   void endInitializedIdentifier(Token nameToken) {

pkg/front_end/lib/src/fasta/parser/parser.dart

@@ -4566,9 +4566,24 @@ class Parser {
           token.next, POSTFIX_PRECEDENCE, allowCascades);
       listener.handleUnaryPrefixAssignmentExpression(operator);
       return token;
-    } else {
-      return parsePrimary(token, IdentifierContext.expression);
+    } else if (token.next.isIdentifier) {
+      Token identifier = token.next;
+      if (optional(".", identifier.next)) {
+        identifier = identifier.next.next;
+      }
+      if (identifier.isIdentifier) {
+        // Looking at `identifier ('.' identifier)?`.
+        if (optional("<", identifier.next)) {
+          BeginToken typeArguments = identifier.next;
+          Token endTypeArguments = typeArguments.endGroup;
+          if (endTypeArguments != null &&
+              optional(".", endTypeArguments.next)) {
+            return parseImplicitCreationExpression(token);
+          }
+        }
+      }
     }
+    return parsePrimary(token, IdentifierContext.expression);
   }
 
   Token parseArgumentOrIndexStar(Token token, Token typeArguments) {
@@ -4981,6 +4996,15 @@ class Parser {
     return token;
   }
 
+  Token parseImplicitCreationExpression(Token token) {
+    Token begin = token;
+    listener.beginImplicitCreationExpression(token);
+    token = parseConstructorReference(token);
+    token = parseRequiredArguments(token);
+    listener.endImplicitCreationExpression(begin);
+    return token;
+  }
+
   /// This method parses a list or map literal that is known to start with the
   /// keyword 'const'.
   ///

tests/language_2/language_2_kernel.status

@@ -115,11 +115,6 @@ identical_const_test/01: MissingCompileTimeError
 identical_const_test/02: MissingCompileTimeError
 identical_const_test/03: MissingCompileTimeError
 identical_const_test/04: MissingCompileTimeError
-implicit_creation/implicit_const_context_constructor_generic_named_test: CompileTimeError
-implicit_creation/implicit_const_context_prefix_constructor_generic_named_test: CompileTimeError
-implicit_creation/implicit_new_constructor_generic_named_test: CompileTimeError
-implicit_creation/implicit_new_or_const_generic_test: CompileTimeError
-implicit_creation/implicit_new_prefix_constructor_generic_named_test: CompileTimeError
 implicit_this_test/01: MissingCompileTimeError
 implicit_this_test/04: MissingCompileTimeError
 issue31596_override_test/07: MissingCompileTimeError
@@ -667,7 +662,6 @@ generic_no_such_method_dispatcher_test: CompileTimeError # Issue 31533
 generic_tearoff_test: CompileTimeError
 generic_tearoff_test: RuntimeError
 if_null_evaluation_order_test: Pass
-implicit_creation/implicit_new_constructor_generic_test: Pass
 initializing_formal_type_annotation_test/01: MissingCompileTimeError
 initializing_formal_type_annotation_test/02: MissingCompileTimeError
 instantiate_tearoff_of_call_test: CompileTimeError
@@ -1010,7 +1004,6 @@ getter_override_test/01: MissingCompileTimeError # Issue 32613: override check i
 getter_override_test/02: MissingCompileTimeError # Issue 32613: override check is missing in CFE.
 hello_dart_test: Skip # Incompatible flag: --compile_all
 implicit_closure_test: Skip # Incompatible flag: --use_slow_path
-implicit_creation/implicit_new_constructor_generic_test: Pass
 implicit_downcast_during_assignment_test: Pass # Correctly passes.
 implicit_downcast_during_combiner_test: Pass # Correctly passes.
 implicit_downcast_during_compound_assignment_test: Pass # Correctly passes.