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-rw-r--r--src/lombok/javac/handlers/HandleData.java132
-rw-r--r--src/lombok/javac/handlers/PKG.java14
2 files changed, 145 insertions, 1 deletions
diff --git a/src/lombok/javac/handlers/HandleData.java b/src/lombok/javac/handlers/HandleData.java
index 8ab50812..ea34cd55 100644
--- a/src/lombok/javac/handlers/HandleData.java
+++ b/src/lombok/javac/handlers/HandleData.java
@@ -12,10 +12,15 @@ import lombok.javac.JavacAST.Node;
import org.mangosdk.spi.ProviderFor;
+import com.sun.tools.javac.code.BoundKind;
import com.sun.tools.javac.code.Flags;
+import com.sun.tools.javac.code.TypeTags;
+import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.TreeMaker;
import com.sun.tools.javac.tree.JCTree.JCAnnotation;
+import com.sun.tools.javac.tree.JCTree.JCArrayTypeTree;
import com.sun.tools.javac.tree.JCTree.JCAssign;
+import com.sun.tools.javac.tree.JCTree.JCBinary;
import com.sun.tools.javac.tree.JCTree.JCBlock;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
import com.sun.tools.javac.tree.JCTree.JCExpression;
@@ -23,12 +28,14 @@ import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
import com.sun.tools.javac.tree.JCTree.JCIdent;
import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
import com.sun.tools.javac.tree.JCTree.JCModifiers;
+import com.sun.tools.javac.tree.JCTree.JCPrimitiveTypeTree;
import com.sun.tools.javac.tree.JCTree.JCReturn;
import com.sun.tools.javac.tree.JCTree.JCStatement;
import com.sun.tools.javac.tree.JCTree.JCTypeApply;
import com.sun.tools.javac.tree.JCTree.JCTypeParameter;
import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.Name;
@ProviderFor(JavacAnnotationHandler.class)
public class HandleData implements JavacAnnotationHandler<Data> {
@@ -71,10 +78,133 @@ public class HandleData implements JavacAnnotationHandler<Data> {
injectMethod(typeNode, staticConstructor);
}
- //TODO hashCode, equals, toString.
+ if ( methodExists("equals", typeNode) == MethodExistsResult.NOT_EXISTS ) {
+ JCMethodDecl method = createEquals(typeNode, nodesForEquality);
+ injectMethod(typeNode, method);
+ }
+
+ //TODO hashCode, toString.
return true;
}
+ private JCMethodDecl createEquals(Node typeNode, List<Node> fields) {
+ TreeMaker maker = typeNode.getTreeMaker();
+ JCClassDecl type = (JCClassDecl) typeNode.get();
+
+ Name oName = typeNode.toName("o");
+ Name otherName = typeNode.toName("other");
+ Name thisName = typeNode.toName("this");
+
+ JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
+ JCExpression objectType = maker.Type(typeNode.getSymbolTable().objectType);
+ JCExpression returnType = maker.TypeIdent(TypeTags.BOOLEAN);
+
+ List<JCStatement> statements = List.nil();
+ List<JCVariableDecl> params = List.of(maker.VarDef(maker.Modifiers(0), oName, objectType, null));
+
+ /* if ( o == this ) return true; */ {
+ statements = statements.append(
+ maker.If(maker.Binary(JCTree.EQ, maker.Ident(oName), maker.Ident(thisName)), returnBool(maker, true), null));
+ }
+
+ /* if ( o == null ) return false; */ {
+ statements = statements.append(
+ maker.If(maker.Binary(JCTree.EQ, maker.Ident(oName), maker.Literal(TypeTags.BOT, null)), returnBool(maker, false), null));
+ }
+
+ /* if ( o.getClass() != this.getClass() ) return false; */ {
+ Name getClass = typeNode.toName("getClass");
+ List<JCExpression> exprNil = List.nil();
+ JCExpression oGetClass = maker.Apply(exprNil, maker.Select(maker.Ident(oName), getClass), exprNil);
+ JCExpression thisGetClass = maker.Apply(exprNil, maker.Select(maker.Ident(thisName), getClass), exprNil);
+ statements = statements.append(
+ maker.If(maker.Binary(JCTree.NE, oGetClass, thisGetClass), returnBool(maker, false), null));
+ }
+
+ /* MyType<?> other = (MyType<?>) o; */ {
+ final JCExpression selfType1, selfType2;
+ List<JCExpression> wildcards1 = List.nil();
+ List<JCExpression> wildcards2 = List.nil();
+ for ( int i = 0 ; i < type.typarams.length() ; i++ ) {
+ wildcards1 = wildcards1.append(maker.Wildcard(maker.TypeBoundKind(BoundKind.UNBOUND), null));
+ wildcards2 = wildcards2.append(maker.Wildcard(maker.TypeBoundKind(BoundKind.UNBOUND), null));
+ }
+
+ if ( type.typarams.isEmpty() ) {
+ selfType1 = maker.Ident(type.name);
+ selfType2 = maker.Ident(type.name);
+ } else {
+ selfType1 = maker.TypeApply(maker.Ident(type.name), wildcards1);
+ selfType2 = maker.TypeApply(maker.Ident(type.name), wildcards2);
+ }
+
+ statements = statements.append(
+ maker.VarDef(maker.Modifiers(Flags.FINAL), otherName, selfType1, maker.TypeCast(selfType2, maker.Ident(oName))));
+ }
+
+ for ( Node fieldNode : fields ) {
+ JCVariableDecl field = (JCVariableDecl) fieldNode.get();
+ JCExpression fType = field.vartype;
+ JCExpression thisDotField = maker.Select(maker.Ident(thisName), field.name);
+ JCExpression otherDotField = maker.Select(maker.Ident(otherName), field.name);
+ if ( fType instanceof JCPrimitiveTypeTree ) {
+ switch ( ((JCPrimitiveTypeTree)fType).getPrimitiveTypeKind() ) {
+ case FLOAT:
+ /* if ( Float.compare(this.fieldName, other.fieldName) != 0 ) return false; */
+ statements = statements.append(generateCompareFloatOrDouble(thisDotField, otherDotField, maker, typeNode, false));
+ break;
+ case DOUBLE:
+ /* if ( Double(this.fieldName, other.fieldName) != 0 ) return false; */
+ statements = statements.append(generateCompareFloatOrDouble(thisDotField, otherDotField, maker, typeNode, true));
+ break;
+ default:
+ /* if ( this.fieldName != other.fieldName ) return false; */
+ statements = statements.append(
+ maker.If(maker.Binary(JCTree.NE, thisDotField, otherDotField), returnBool(maker, false), null));
+ break;
+ }
+ } else if ( fType instanceof JCArrayTypeTree ) {
+ /* if ( !java.util.Arrays.deepEquals(this.fieldName, other.fieldName) ) return false; //use equals for primitive arrays. */
+ boolean multiDim = ((JCArrayTypeTree)fType).elemtype instanceof JCArrayTypeTree;
+ boolean primitiveArray = ((JCArrayTypeTree)fType).elemtype instanceof JCPrimitiveTypeTree;
+ boolean useDeepEquals = multiDim || !primitiveArray;
+
+ JCExpression eqMethod = chainDots(maker, typeNode, "java", "util", "Arrays", useDeepEquals ? "deepEquals" : "equals");
+ List<JCExpression> args = List.of(thisDotField, otherDotField);
+ statements = statements.append(maker.If(maker.Unary(JCTree.NOT,
+ maker.Apply(List.<JCExpression>nil(), eqMethod, args)), returnBool(maker, false), null));
+ } else /* objects */ {
+ /* if ( this.fieldName == null ? other.fieldName != null : !this.fieldName.equals(other.fieldName) ) return false; */
+ JCExpression thisEqualsNull = maker.Binary(JCTree.EQ, thisDotField, maker.Literal(TypeTags.BOT, null));
+ JCExpression otherNotEqualsNull = maker.Binary(JCTree.NE, otherDotField, maker.Literal(TypeTags.BOT, null));
+ JCExpression thisEqualsThat = maker.Apply(
+ List.<JCExpression>nil(), maker.Select(thisDotField, typeNode.toName("equals")), List.of(otherDotField));
+ JCExpression fieldsAreNotEqual = maker.Conditional(thisEqualsNull, otherNotEqualsNull, maker.Unary(JCTree.NOT, thisEqualsThat));
+ statements = statements.append(maker.If(fieldsAreNotEqual, returnBool(maker, false), null));
+ }
+ }
+
+ /* return true; */ {
+ statements = statements.append(returnBool(maker, true));
+ }
+
+ JCBlock body = maker.Block(0, statements);
+ return maker.MethodDef(mods, typeNode.toName("equals"), returnType, List.<JCTypeParameter>nil(), params, List.<JCExpression>nil(), body, null);
+ }
+
+ private JCStatement generateCompareFloatOrDouble(JCExpression thisDotField, JCExpression otherDotField, TreeMaker maker, Node node, boolean isDouble) {
+ /* if ( Float.compare(fieldName, other.fieldName) != 0 ) return false; */
+ JCExpression clazz = chainDots(maker, node, "java", "lang", isDouble ? "Double" : "Float");
+ List<JCExpression> args = List.of(thisDotField, otherDotField);
+ JCBinary compareCallEquals0 = maker.Binary(JCTree.NE, maker.Apply(
+ List.<JCExpression>nil(), maker.Select(clazz, node.toName("compare")), args), maker.Literal(0));
+ return maker.If(compareCallEquals0, returnBool(maker, false), null);
+ }
+
+ private JCStatement returnBool(TreeMaker maker, boolean bool) {
+ return maker.Return(maker.Literal(TypeTags.BOOLEAN, bool ? 1 : 0));
+ }
+
private JCMethodDecl createConstructor(boolean isPublic, Node typeNode, List<Node> fields) {
TreeMaker maker = typeNode.getTreeMaker();
JCClassDecl type = (JCClassDecl) typeNode.get();
diff --git a/src/lombok/javac/handlers/PKG.java b/src/lombok/javac/handlers/PKG.java
index 25d1a93e..76bdd527 100644
--- a/src/lombok/javac/handlers/PKG.java
+++ b/src/lombok/javac/handlers/PKG.java
@@ -4,7 +4,9 @@ import java.lang.reflect.Modifier;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.TreeMaker;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
+import com.sun.tools.javac.tree.JCTree.JCExpression;
import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
import com.sun.tools.javac.util.List;
@@ -123,4 +125,16 @@ class PKG {
}
return out;
}
+
+ static JCExpression chainDots(TreeMaker maker, JavacAST.Node node, String... elems) {
+ assert elems != null;
+ assert elems.length > 0;
+
+ JCExpression e = maker.Ident(node.toName(elems[0]));
+ for ( int i = 1 ; i < elems.length ; i++ ) {
+ e = maker.Select(e, node.toName(elems[i]));
+ }
+
+ return e;
+ }
}
generated by cgit (git 2.46.0) at 2024-12-03 20:53:43 +0000