Apply resolution to AdjacentStrings.

R=brianwilkerson@google.com, paulberry@google.com

Bug:
Change-Id: Iae09b39be41f1ddcd05a5a5ded554a1b7f9c09f3
Reviewed-on: https://dart-review.googlesource.com/25800
Reviewed-by: Paul Berry <paulberry@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>

pkg/analyzer/lib/src/fasta/ast_builder.dart

@@ -218,7 +218,7 @@ class AstBuilder extends ScopeListener {
     scriptTag = ast.scriptTag(token);
   }
 
-  void handleStringJuxtaposition(int literalCount) {
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
     debugEvent("StringJuxtaposition");
 
     push(ast.adjacentStrings(popList(literalCount)));

pkg/analyzer/lib/src/fasta/resolution_applier.dart

@@ -49,6 +49,12 @@ class ResolutionApplier extends GeneralizingAstVisitor {
     }
   }
 
+  @override
+  void visitAdjacentStrings(AdjacentStrings node) {
+    node.strings.accept(this);
+    node.staticType = _getTypeFor(node.endToken.next);
+  }
+
   @override
   void visitAsExpression(AsExpression node) {
     node.expression.accept(this);

pkg/analyzer/test/src/dart/analysis/driver_test.dart

@@ -68,6 +68,32 @@ Future pumpEventQueue([int times = 5000]) {
  */
 @reflectiveTest
 class AnalysisDriverResolutionTest extends BaseAnalysisDriverTest {
+  test_adjacentStrings() async {
+    String content = r'''
+void main() {
+  'aaa' 'bbb' 'ccc';
+}
+''';
+    addTestFile(content);
+    AnalysisResult result = await driver.getResult(testFile);
+    var typeProvider = result.unit.element.context.typeProvider;
+
+    List<Statement> statements = _getMainStatements(result);
+
+    ExpressionStatement statement = statements[0];
+    AdjacentStrings expression = statement.expression;
+    expect(expression.strings, hasLength(3));
+
+    StringLiteral literal_1 = expression.strings[0];
+    expect(literal_1.staticType, typeProvider.stringType);
+
+    StringLiteral literal_2 = expression.strings[1];
+    expect(literal_2.staticType, typeProvider.stringType);
+
+    StringLiteral literal_3 = expression.strings[2];
+    expect(literal_3.staticType, typeProvider.stringType);
+  }
+
   test_apply_instanceCreation_noTypeArguments() async {
     String content = r'''
 class C {

pkg/compiler/lib/src/parser/element_listener.dart

@@ -942,7 +942,7 @@ class ElementListener extends Listener {
   }
 
   @override
-  void handleStringJuxtaposition(int stringCount) {
+  void handleStringJuxtaposition(int stringCount, Token endToken) {
     assert(stringCount != 0);
     Expression accumulator = popNode();
     stringCount--;

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

@@ -1400,7 +1400,7 @@ class BodyBuilder extends ScopeListener<JumpTarget> implements BuilderHelper {
   }
 
   @override
-  void handleStringJuxtaposition(int literalCount) {
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
     debugEvent("StringJuxtaposition");
     List<Expression> parts = popListForValue(literalCount);
     List<Expression> expressions;
@@ -1418,7 +1418,8 @@ class BodyBuilder extends ScopeListener<JumpTarget> implements BuilderHelper {
         }
       }
     }
-    push(new ShadowStringConcatenation(expressions ?? parts));
+    push(new ShadowStringConcatenation(expressions ?? parts)
+      ..fileOffset = offsetForToken(endToken));
   }
 
   @override

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

@@ -1216,8 +1216,8 @@ class ForwardingListener implements Listener {
   }
 
   @override
-  void handleStringJuxtaposition(int literalCount) {
-    listener?.handleStringJuxtaposition(literalCount);
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
+    listener?.handleStringJuxtaposition(literalCount, endToken);
   }
 
   @override

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

@@ -605,7 +605,7 @@ class Listener {
     logEvent("LiteralString");
   }
 
-  void handleStringJuxtaposition(int literalCount) {
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
     logEvent("StringJuxtaposition");
   }
 

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

@@ -4917,7 +4917,7 @@ class Parser {
       count++;
     }
     if (count > 1) {
-      listener.handleStringJuxtaposition(count);
+      listener.handleStringJuxtaposition(count, token.next);
     }
     mayParseFunctionExpressions = old;
     return token;

pkg/front_end/lib/src/fasta/source/diet_listener.dart

@@ -324,7 +324,7 @@ class DietListener extends StackListener {
   }
 
   @override
-  void handleStringJuxtaposition(int literalCount) {
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
     debugEvent("StringJuxtaposition");
   }
 

pkg/front_end/lib/src/fasta/source/outline_builder.dart

@@ -279,7 +279,7 @@ class OutlineBuilder extends UnhandledListener {
   }
 
   @override
-  void handleStringJuxtaposition(int literalCount) {
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
     debugEvent("StringJuxtaposition");
     List<String> list =
         new List<String>.filled(literalCount, null, growable: false);

pkg/front_end/lib/src/fasta/source/stack_listener.dart

@@ -299,7 +299,7 @@ abstract class StackListener extends Listener {
   }
 
   @override
-  void handleStringJuxtaposition(int literalCount) {
+  void handleStringJuxtaposition(int literalCount, Token endToken) {
     debugEvent("StringJuxtaposition");
     push(popList(literalCount).join(""));
   }