Linter analyzer plumbing.

pkg/analyzer/lib/src/generated/resolver.dart

Index: pkg/analyzer/lib/src/generated/resolver.dart
===================================================================
--- pkg/analyzer/lib/src/generated/resolver.dart	(revision 42670)
+++ pkg/analyzer/lib/src/generated/resolver.dart	(working copy)
@@ -1299,7 +1299,8 @@
     // TODO(jwren) After dartbug.com/13732, revisit this, we should be able to
     // remove the (x is! TypeParameterType) checks.
     AstNode parent = node.parent;
-    if (parent is ConditionalExpression && (node == parent.thenExpression || node == parent.elseExpression)) {
+    if (parent is ConditionalExpression &&
+        (node == parent.thenExpression || node == parent.elseExpression)) {
       Expression thenExpression = parent.thenExpression;
       DartType thenType;
       if (thenExpression is AsExpression) {
@@ -5138,7 +5139,49 @@
   }
 }
 
+
 /**
+ * Traverses a library's worth of dart code at a time to generate lint warnings
+ * over the set of sources.
+ *
+ * See [LintCode].
+ */
+class LintGenerator {
+
+  final List<CompilationUnit> _compilationUnits;
+  final AnalysisErrorListener _errorListener;
+
+  LintGenerator(this._compilationUnits, this._errorListener);
+
+  void generate() {
+    TimeCounter_TimeCounterHandle timeCounter =
+        PerformanceStatistics.lint.start();
+    try {
+      _compilationUnits.forEach((cu) {
+        if (cu.element != null) {
+          _generate(cu, cu.element.source);
+        }
+      });
+    } finally {
+      timeCounter.stop();
+    }
+  }
+
+  void _generate(CompilationUnit unit, Source source) {
+    ErrorReporter errorReporter = new ErrorReporter(_errorListener, source);
+    unit.accept(new LintVerifier(errorReporter));
+  }
+}
+
+class LintVerifier extends RecursiveAstVisitor<Object> {
+
+  final ErrorReporter _reporter;
+
+  LintVerifier(this._reporter);
+}
+
+
+/**
  * Instances of the class {@code HtmlTagInfo} record information about the tags used in an HTML
  * file.
  */