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Posted to commits@groovy.apache.org by su...@apache.org on 2017/06/24 09:21:58 UTC

groovy git commit: Refine the checking of EmptyStatement and EmptyExpression

Repository: groovy
Updated Branches:
  refs/heads/master 014273f2f -> f0dcf82fd


Refine the checking of EmptyStatement and EmptyExpression


Project: http://git-wip-us.apache.org/repos/asf/groovy/repo
Commit: http://git-wip-us.apache.org/repos/asf/groovy/commit/f0dcf82f
Tree: http://git-wip-us.apache.org/repos/asf/groovy/tree/f0dcf82f
Diff: http://git-wip-us.apache.org/repos/asf/groovy/diff/f0dcf82f

Branch: refs/heads/master
Commit: f0dcf82fdba81448dd81a06c2fc165e8fd8e241d
Parents: 014273f
Author: sunlan <su...@apache.org>
Authored: Sat Jun 24 17:21:47 2017 +0800
Committer: sunlan <su...@apache.org>
Committed: Sat Jun 24 17:21:47 2017 +0800

----------------------------------------------------------------------
 .../groovy/ast/stmt/EmptyStatement.java         | 18 +++++++-------
 .../groovy/ast/CodeVisitorSupportTest.groovy    |  4 ++--
 .../groovy/ast/builder/AstAssert.groovy         | 25 ++++++++++++++++----
 3 files changed, 32 insertions(+), 15 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/groovy/blob/f0dcf82f/src/main/org/codehaus/groovy/ast/stmt/EmptyStatement.java
----------------------------------------------------------------------
diff --git a/src/main/org/codehaus/groovy/ast/stmt/EmptyStatement.java b/src/main/org/codehaus/groovy/ast/stmt/EmptyStatement.java
index 740cb55..3f6aa93 100644
--- a/src/main/org/codehaus/groovy/ast/stmt/EmptyStatement.java
+++ b/src/main/org/codehaus/groovy/ast/stmt/EmptyStatement.java
@@ -30,8 +30,16 @@ import java.util.Map;
  * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
  */
 public class EmptyStatement extends Statement {
+    public static final EmptyStatement INSTANCE = new ImmutableStatement();
+    
+    public void visit(GroovyCodeVisitor visitor) {
+    }
+
+    public boolean isEmpty() {
+        return true;
+    }
 
-    public static final EmptyStatement INSTANCE = new EmptyStatement() {
+    public static class ImmutableStatement extends EmptyStatement {
         @Override
         public void setStatementLabel(String label) {
             throw createUnsupportedOperationException();
@@ -95,13 +103,5 @@ public class EmptyStatement extends Statement {
         private UnsupportedOperationException createUnsupportedOperationException() {
             return new UnsupportedOperationException("EmptyStatement.INSTANCE is immutable");
         }
-    };
-    
-    public void visit(GroovyCodeVisitor visitor) {
     }
-
-    public boolean isEmpty() {
-        return true;
-    }
-
 }

http://git-wip-us.apache.org/repos/asf/groovy/blob/f0dcf82f/src/test/org/codehaus/groovy/ast/CodeVisitorSupportTest.groovy
----------------------------------------------------------------------
diff --git a/src/test/org/codehaus/groovy/ast/CodeVisitorSupportTest.groovy b/src/test/org/codehaus/groovy/ast/CodeVisitorSupportTest.groovy
index a1b351f..8f78aff 100644
--- a/src/test/org/codehaus/groovy/ast/CodeVisitorSupportTest.groovy
+++ b/src/test/org/codehaus/groovy/ast/CodeVisitorSupportTest.groovy
@@ -57,7 +57,7 @@ public class CodeVisitorSupportTest extends GroovyTestCase {
         assert visitor.history[1] == IfStatement
         assert visitor.history[2] == BooleanExpression
         assert visitor.history[3] == BlockStatement
-        assert visitor.history[4] == EmptyStatement
+        assert visitor.history[4] instanceof EmptyStatement
         assert visitor.history.size == 5
     }
 
@@ -99,7 +99,7 @@ public class CodeVisitorSupportTest extends GroovyTestCase {
         assert visitor.history[2] == BlockStatement
         assert visitor.history[3] == CatchStatement
         assert visitor.history[4] == BlockStatement
-        assert visitor.history[5] == EmptyStatement
+        assert visitor.history[5] instanceof EmptyStatement
     }
 }
 

http://git-wip-us.apache.org/repos/asf/groovy/blob/f0dcf82f/src/test/org/codehaus/groovy/ast/builder/AstAssert.groovy
----------------------------------------------------------------------
diff --git a/src/test/org/codehaus/groovy/ast/builder/AstAssert.groovy b/src/test/org/codehaus/groovy/ast/builder/AstAssert.groovy
index 7d6a589..af9fb27 100644
--- a/src/test/org/codehaus/groovy/ast/builder/AstAssert.groovy
+++ b/src/test/org/codehaus/groovy/ast/builder/AstAssert.groovy
@@ -20,6 +20,8 @@ package org.codehaus.groovy.ast.builder
 
 import org.codehaus.groovy.ast.ASTNode
 import org.codehaus.groovy.ast.ClassNode
+import org.codehaus.groovy.ast.expr.EmptyExpression
+import org.codehaus.groovy.ast.stmt.EmptyStatement
 import org.junit.Assert
 import org.codehaus.groovy.ast.stmt.BlockStatement
 import org.codehaus.groovy.ast.stmt.ExpressionStatement
@@ -221,9 +223,14 @@ class AstAssert {
                 assertSyntaxTree([expected.expression], [actual.expression])
                 assertSyntaxTree([expected.code], [actual.code])
             },
+
             EmptyStatement : { expected, actual ->
                 // always successful
             },
+            'EmptyStatement.ImmutableStatement' : { expected, actual ->
+                // always successful
+            },
+
             BreakStatement : { expected, actual ->
                 Assert.assertEquals("Wrong label", expected.label, actual.label)
             },
@@ -374,15 +381,25 @@ class AstAssert {
         if (actual == null || expected == null || expected.size() != actual?.size()) {
             Assert.fail("AST comparison failure. \nExpected $expected \nReceived $actual")
         }
+
         expected.eachWithIndex { item, index ->
-            if (item.getClass().isArray() && actual[index].getClass().isArray()) {
-                assertSyntaxTree(item, actual[index])
+            def actualNode = actual[index]
+
+            if (item.getClass().isArray() && actualNode.getClass().isArray()) {
+                assertSyntaxTree(item, actualNode)
             } else {
-                Assert.assertEquals("Wrong type in AST Node", item.getClass(), actual[index].getClass())
+                try {
+                    Assert.assertEquals("Wrong type in AST Node", item.getClass(), actualNode.getClass())
+                } catch (AssertionError e) {
+                    if (!(item instanceof EmptyStatement && actualNode instanceof EmptyStatement)
+                        || !(item instanceof EmptyExpression && actualNode instanceof EmptyExpression)) {
+                        throw e;
+                    }
+                }
 
                 if (ASSERTION_MAP.containsKey(item.getClass().getSimpleName())) {
                     Closure assertion = ASSERTION_MAP.get(item.getClass().getSimpleName())
-                    assertion(item, actual[index])
+                    assertion(item, actualNode)
                 } else {
                     Assert.fail("Unexpected type: ${item.getClass()} Update the unit test!")
                 }