'val' support for eclipse.

1 files changed, 53 insertions, 0 deletions

diff --git a/src/core/lombok/eclipse/handlers/HandleVal.java b/src/core/lombok/eclipse/handlers/HandleVal.java
new file mode 100644
index 00000000..6fa39b10
--- /dev/null
+++ b/src/core/lombok/eclipse/handlers/HandleVal.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright © 2009-2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.eclipse.handlers;
+
+import lombok.eclipse.EclipseASTAdapter;
+import lombok.eclipse.EclipseASTVisitor;
+import lombok.eclipse.EclipseNode;
+
+import org.eclipse.jdt.internal.compiler.ast.ArrayInitializer;
+import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.SingleTypeReference;
+import org.mangosdk.spi.ProviderFor;
+
+/*
+ * This class just handles 2 basic error cases. The real meat of eclipse 'val' support is in {@code EclipsePatcher}'s {@code patchHandleVal} method.
+ */
+@ProviderFor(EclipseASTVisitor.class)
+public class HandleVal extends EclipseASTAdapter {
+	@Override public void visitLocal(EclipseNode localNode, LocalDeclaration local) {
+		if (local.type instanceof SingleTypeReference) {
+			char[] token = ((SingleTypeReference)local.type).token;
+			if (token == null || token.length != 3) return;
+			else if (token[0] != 'v' || token[1] != 'a' || token[2] != 'l') return;
+			
+			if (local.initialization == null) {
+				localNode.addError("'val' on a local variable requires an initializer expression");
+			}
+			
+			if (local.initialization instanceof ArrayInitializer) {
+				localNode.addError("'val' is not compatible with array initializer expressions. Use the full form (new int[] { ... } instead of just { ... })");
+			}
+		}
+	}
+}