Revert "Parts must start with 'part of'" and "Attempt to fix VM build"

dart/compiler/javatests/com/google/dart/compiler/IdeTest.java

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.google.dart.compiler;
+
+import com.google.dart.compiler.ast.DartClass;
+import com.google.dart.compiler.ast.DartExprStmt;
+import com.google.dart.compiler.ast.DartExpression;
+import com.google.dart.compiler.ast.DartIdentifier;
+import com.google.dart.compiler.ast.DartMethodDefinition;
+import com.google.dart.compiler.ast.DartNode;
+import com.google.dart.compiler.ast.DartPropertyAccess;
+import com.google.dart.compiler.ast.DartReturnStatement;
+import com.google.dart.compiler.ast.DartStatement;
+import com.google.dart.compiler.ast.DartUnit;
+import com.google.dart.compiler.ast.DartUnqualifiedInvocation;
+import com.google.dart.compiler.ast.LibraryUnit;
+import com.google.dart.compiler.resolver.ClassElement;
+import com.google.dart.compiler.resolver.CoreTypeProvider;
+import com.google.dart.compiler.resolver.CoreTypeProviderImplementation;
+import com.google.dart.compiler.resolver.Element;
+import com.google.dart.compiler.resolver.FieldElement;
+import com.google.dart.compiler.resolver.MethodElement;
+import com.google.dart.compiler.resolver.Scope;
+import com.google.dart.compiler.testing.TestCompilerConfiguration;
+import com.google.dart.compiler.testing.TestCompilerContext;
+import com.google.dart.compiler.testing.TestCompilerContext.EventKind;
+import com.google.dart.compiler.testing.TestDartArtifactProvider;
+import com.google.dart.compiler.testing.TestLibrarySource;
+import com.google.dart.compiler.type.FunctionType;
+import com.google.dart.compiler.type.InterfaceType;
+import com.google.dart.compiler.type.Type;
+import com.google.dart.compiler.type.TypeAnalyzer;
+
+import junit.framework.TestCase;
+
+import java.io.IOException;
+
+/**
+ * Test of the IDE API in DartCompiler.
+ */
+public class IdeTest extends TestCase {
+
+  private final TestCompilerContext context = new TestCompilerContext(EventKind.ERROR,
+      EventKind.TYPE_ERROR) {
+    @Override
+    protected void handleEvent(DartCompilationError event, EventKind kind) {
+      super.handleEvent(event, kind);
+      // For debugging:
+      // System.err.println(event);
+    }
+  };
+
+  private final DartCompilerListener listener = context;
+
+  private final DartArtifactProvider provider = new TestDartArtifactProvider();
+
+  private final CompilerConfiguration config = new TestCompilerConfiguration();
+
+  public void testAnalyseNoSemicolonPropertyAccess() {
+    DartUnit unit =
+        analyzeUnit(
+            "no_semicolon_property_access",
+            "class Foo {",
+            "  int i;",
+            "  void foo() {",
+            "    i.y", // Missing semicolon.
+            "  }",
+            "}");
+    assertEquals("errorCount", 1, context.getErrorCount()); // Missing semicolon.
+    assertEquals("typeErrorCount", 1, context.getTypeErrorCount()); // No member named "y".
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    FieldElement element = (FieldElement) qualifierElement(statement.getExpression());
+    assertEquals("int", element.getType().getElement().getName());
+  }
+
+  public void testAnalyseNoSemicolonBrokenPropertyAccess() {
+    DartUnit unit =
+        analyzeUnit(
+            "no_semicolon_broken_property_access",
+            "class Foo {",
+            "  int i;",
+            "  void foo() {",
+            "    i.", // Syntax error and missing semicolon.
+            "  }",
+            "}");
+    // Expected identifier and missing semicolon
+    assertEquals("errorCount", 2, context.getErrorCount());
+    assertEquals("typeErrorCount", 1, context.getTypeErrorCount()); // No member named "".
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    FieldElement element = (FieldElement) qualifierElement(statement.getExpression());
+    assertEquals("int", element.getType().getElement().getName());
+  }
+
+  public void testAnalyseBrokenPropertyAccess() {
+    DartUnit unit =
+        analyzeUnit(
+            "broken_property_access",
+            "class Foo {",
+            "  int i;",
+            "  void foo() {",
+            "    i.;", // Syntax error here.
+            "  }",
+            "}");
+    assertEquals("errorCount", 1, context.getErrorCount()); // Expected identifier.
+    assertEquals("typeErrorCount", 1, context.getTypeErrorCount()); // No member named "".
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    FieldElement element = (FieldElement) qualifierElement(statement.getExpression());
+    assertEquals("int", element.getType().getElement().getName());
+  }
+
+  public void testAnalyseNoSemicolonIdentifier() {
+    DartUnit unit =
+        analyzeUnit(
+            "no_semicolon_identifier",
+            "class Foo {",
+            "  int i;",
+            "  void foo() {",
+            "    i", // Missing semicolon.
+            "  }",
+            "}");
+    assertEquals("errorCount", 1, context.getErrorCount()); // Missing semicolon.
+    assertEquals("typeErrorCount", 0, context.getTypeErrorCount());
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    FieldElement field = (FieldElement) targetElement(statement.getExpression());
+    assertEquals("int", field.getType().getElement().getName());
+  }
+
+  public void testAnalyseNoSemicolonMethodCall() {
+    DartUnit unit =
+        analyzeUnit(
+            "no_semicolon_method_call",
+            "class Foo {",
+            "  int i () { return 0; }",
+            "  void foo() {",
+            "    i()", // Missing semicolon.
+            "  }",
+            "}");
+    assertEquals("errorCount", 1, context.getErrorCount()); // Missing semicolon.
+    assertEquals("typeErrorCount", 0, context.getTypeErrorCount());
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    DartExpression expression = statement.getExpression();
+    DartUnqualifiedInvocation invocation = (DartUnqualifiedInvocation) expression;
+    MethodElement method = (MethodElement) targetElement(invocation.getTarget());
+    assertEquals("i", method.getName());
+    FunctionType type = (FunctionType) method.getType();
+    assertEquals("int", type.getReturnType().getElement().getName());
+  }
+
+  public void testAnalyseVoidKeyword() {
+    DartUnit unit =
+        analyzeUnit(
+            "void_keyword",
+            "class Foo {",
+            "  Function voidFunction;",
+            "  void foo() {",
+            "    void", // Missing semicolon and keyword
+            "  }",
+            "}");
+    // Expected identifier and missing semicolon.
+    assertEquals("errorCount", 2, context.getErrorCount());
+    // You can't use 'void' as a member name.  It might be the beginning of a variable declaration
+    // so it isn't an error in and of itself.
+    assertEquals("typeErrorCount", 0, context.getTypeErrorCount());
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    DartIdentifier expression = (DartIdentifier) statement.getExpression();
+    assertEquals("", expression.getName());
+  }
+
+  public void testAnalyseVoidKeywordPropertyAccess() {
+    DartUnit unit =
+        analyzeUnit(
+            "void_keyword_property_access",
+            "class Foo {",
+            "  Function voidFunction;",
+            "  void foo() {",
+            "    this.void", // Missing semicolon and keyword
+            "  }",
+            "}");
+    // Expected identifier and missing semicolon.
+    assertEquals("errorCount", 2, context.getErrorCount());
+    assertEquals("typeErrorCount", 1, context.getTypeErrorCount());
+    DartExprStmt statement = (DartExprStmt) firstStatementOfMethod(unit, "Foo", "foo");
+    DartPropertyAccess expression = (DartPropertyAccess) statement.getExpression();
+    assertEquals("", expression.getPropertyName());
+  }
+
+  public void testReturnIntTypeAnalysis() {
+    DartUnit unit =
+        analyzeUnit(
+            "return_int_type_analysis",
+            "class Foo {",
+            "  int i;",
+            "  int foo() {",
+            "    return i;",
+            "  }",
+            "}");
+    Scope unitScope = unit.getLibrary().getElement().getScope();
+    CoreTypeProvider typeProvider = new CoreTypeProviderImplementation(unitScope, context);
+    DartClass classNode = getClassOfUnit(unit, "Foo");
+    DartReturnStatement rtnStmt = (DartReturnStatement) firstStatementOfMethod(unit, "Foo", "foo");
+    ClassElement classElement = classNode.getElement();
+    InterfaceType definingType = classElement.getType();
+    Type type = TypeAnalyzer.analyze(rtnStmt.getValue(), typeProvider, context, definingType);
+    assertNotNull(type);
+    assertEquals("int", type.getElement().getName());
+  }
+
+  private Element targetElement(DartExpression expression) {
+    DartIdentifier identifier = (DartIdentifier) expression;
+    Element element = identifier.getElement();
+    assertNotNull(element);
+    return element;
+  }
+
+  private Element qualifierElement(DartExpression node) {
+    DartPropertyAccess propertyAccess = (DartPropertyAccess) node;
+    DartIdentifier identifier = (DartIdentifier) propertyAccess.getQualifier();
+    Element element = identifier.getElement();
+    assertNotNull(element);
+    return element;
+  }
+
+  private DartClass getClassOfUnit(DartUnit unit, String cls) {
+    DartClass dartClass = null;
+    for (DartNode node : unit.getTopLevelNodes()) {
+      DartClass classNode = (DartClass) node;
+      if (node instanceof DartClass) {
+        if (classNode.getName().getName().equals(cls)) {
+          dartClass = classNode;
+        }
+      }
+    }
+    assertNotNull(dartClass);
+    return dartClass;
+  }
+
+  private DartStatement firstStatementOfMethod(DartUnit unit, String cls, String member) {
+    DartClass classNode = getClassOfUnit(unit, cls);
+    for (DartNode memberNode : classNode.getMembers()) {
+      if (memberNode instanceof DartMethodDefinition) {
+        DartMethodDefinition methodNode = (DartMethodDefinition) memberNode;
+        if (methodNode.getName() instanceof DartIdentifier) {
+          DartIdentifier methodName = (DartIdentifier) methodNode.getName();
+          if (methodName.getName().equals(member)) {
+            return methodNode.getFunction().getBody().getStatements().get(0);
+          }
+        }
+      }
+    }
+    fail();
+    return null;
+  }
+
+  private DartUnit analyzeUnit(String name, String... sourceLines) throws AssertionError {
+    TestLibrarySource lib = new TestLibrarySource(name);
+    lib.addSource(name + ".dart", sourceLines);
+    LibraryUnit libraryUnit;
+    try {
+      libraryUnit = DartCompiler.analyzeLibrary(lib, null, config, provider, listener);
+      assertNotNull("libraryUnit == null", libraryUnit);
+    } catch (IOException e) {
+      throw new AssertionError(e);
+    }
+    DartUnit unit = libraryUnit.getUnit(name + ".dart");
+    assertNotNull("unit == null", unit);
+    return unit;
+  }
+}