Differences

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--- tutorial:mixin_examples [2020/09/26 16:02] – minor improvement siglong
+++ tutorial:mixin_examples [2021/08/07 07:08] – Add "modifying a constant" example fracturedcode
@@ Line 111: / Line 111: @@
   at = @At(
     value = "INVOKE",
-    target = "La/b/c/Something;doSomething()V"),
+    target = "La/b/c/Something;doSomething()V"
-    slice = @Slice(
+  ),
-      from = @At(value = "INVOKE", target = "La/b/c/Something;doSomething2()V"),
+  slice = @Slice(
-      to = @At(value = "INVOKE", target = "La/b/c/Something;doSomething3()V")))
+    from = @At(value = "INVOKE", target = "La/b/c/Something;doSomething2()V"),
+    to = @At(value = "INVOKE", target = "La/b/c/Something;doSomething3()V")
+  )
+)
 private void injected(CallbackInfo ci) {
   doSomething5();
@@ Line 356: / Line 359: @@
 +   double d1 = injected(doSomething3() + 0.8D);
     double d2 = doSomething4();
+  }
+</code>
+===== Modifying a constant =====
+Mixin:
+<code java>
+@ModifyConstant(method = "foo()V", constant = @Constant(intValue = 4))
+private int injected(int value) {
+  return ++value;
+}
+</code>
+Result:
+<code diff>
+  public void foo() {
+-   for (int i = 0; i < 4; i++) {
++   for (int i = 0; i < 5; i++) {
+      doSomething(i);
+    }
   }
 </code>