Deprecate taint/trust and related methods, and make the methods no-ops

This removes the related tests, and puts the related specs behind
version guards.  This affects all code in lib, including some
libraries that may want to support older versions of Ruby.

4 files changed, 52 insertions, 44 deletions

diff --git a/spec/ruby/library/delegate/delegator/taint_spec.rb b/spec/ruby/library/delegate/delegator/taint_spec.rb
index 2dd0493b53..b875b5a6b8 100644
--- a/spec/ruby/library/delegate/delegator/taint_spec.rb
+++ b/spec/ruby/library/delegate/delegator/taint_spec.rb
@@ -6,18 +6,20 @@ describe "Delegator#taint" do
     @delegate = DelegateSpecs::Delegator.new("")
   end
 
-  it "returns self" do
-    @delegate.taint.equal?(@delegate).should be_true
-  end
+  ruby_version_is ''...'2.7' do
+    it "returns self" do
+      @delegate.taint.equal?(@delegate).should be_true
+    end
 
-  it "taints the delegator" do
-    @delegate.__setobj__(nil)
-    @delegate.taint
-    @delegate.tainted?.should be_true
-  end
+    it "taints the delegator" do
+      @delegate.__setobj__(nil)
+      @delegate.taint
+      @delegate.tainted?.should be_true
+    end
 
-  it "taints the delegated object" do
-    @delegate.taint
-    @delegate.__getobj__.tainted?.should be_true
+    it "taints the delegated object" do
+      @delegate.taint
+      @delegate.__getobj__.tainted?.should be_true
+    end
   end
 end
diff --git a/spec/ruby/library/delegate/delegator/trust_spec.rb b/spec/ruby/library/delegate/delegator/trust_spec.rb
index ba57b3ea18..492f02e27f 100644
--- a/spec/ruby/library/delegate/delegator/trust_spec.rb
+++ b/spec/ruby/library/delegate/delegator/trust_spec.rb
@@ -6,17 +6,19 @@ describe "Delegator#trust" do
     @delegate = DelegateSpecs::Delegator.new([])
   end
 
-  it "returns self" do
-    @delegate.trust.equal?(@delegate).should be_true
-  end
+  ruby_version_is ''...'2.7' do
+    it "returns self" do
+      @delegate.trust.equal?(@delegate).should be_true
+    end
 
-  it "trusts the delegator" do
-    @delegate.trust
-    @delegate.untrusted?.should be_false
-  end
+    it "trusts the delegator" do
+      @delegate.trust
+      @delegate.untrusted?.should be_false
+    end
 
-  it "trusts the delegated object" do
-    @delegate.trust
-    @delegate.__getobj__.untrusted?.should be_false
+    it "trusts the delegated object" do
+      @delegate.trust
+      @delegate.__getobj__.untrusted?.should be_false
+    end
   end
 end
diff --git a/spec/ruby/library/delegate/delegator/untaint_spec.rb b/spec/ruby/library/delegate/delegator/untaint_spec.rb
index ddcf854a43..3f8f7721a9 100644
--- a/spec/ruby/library/delegate/delegator/untaint_spec.rb
+++ b/spec/ruby/library/delegate/delegator/untaint_spec.rb
@@ -6,19 +6,21 @@ describe "Delegator#untaint" do
     @delegate = -> { DelegateSpecs::Delegator.new("") }.call
   end
 
-  it "returns self" do
-    @delegate.untaint.equal?(@delegate).should be_true
-  end
+  ruby_version_is ''...'2.7' do
+    it "returns self" do
+      @delegate.untaint.equal?(@delegate).should be_true
+    end
 
-  it "untaints the delegator" do
-    @delegate.untaint
-    @delegate.tainted?.should be_false
-    # No additional meaningful test; that it does or not taint
-    # "for real" the delegator has no consequence
-  end
+    it "untaints the delegator" do
+      @delegate.untaint
+      @delegate.tainted?.should be_false
+      # No additional meaningful test; that it does or not taint
+      # "for real" the delegator has no consequence
+    end
 
-  it "untaints the delegated object" do
-    @delegate.untaint
-    @delegate.__getobj__.tainted?.should be_false
+    it "untaints the delegated object" do
+      @delegate.untaint
+      @delegate.__getobj__.tainted?.should be_false
+    end
   end
 end
diff --git a/spec/ruby/library/delegate/delegator/untrust_spec.rb b/spec/ruby/library/delegate/delegator/untrust_spec.rb
index b7f4bc823e..acc91b099a 100644
--- a/spec/ruby/library/delegate/delegator/untrust_spec.rb
+++ b/spec/ruby/library/delegate/delegator/untrust_spec.rb
@@ -6,18 +6,20 @@ describe "Delegator#untrust" do
     @delegate = DelegateSpecs::Delegator.new("")
   end
 
-  it "returns self" do
-    @delegate.untrust.equal?(@delegate).should be_true
-  end
+  ruby_version_is ''...'2.7' do
+    it "returns self" do
+      @delegate.untrust.equal?(@delegate).should be_true
+    end
 
-  it "untrusts the delegator" do
-    @delegate.__setobj__(nil)
-    @delegate.untrust
-    @delegate.untrusted?.should be_true
-  end
+    it "untrusts the delegator" do
+      @delegate.__setobj__(nil)
+      @delegate.untrust
+      @delegate.untrusted?.should be_true
+    end
 
-  it "untrusts the delegated object" do
-    @delegate.untrust
-    @delegate.__getobj__.untrusted?.should be_true
+    it "untrusts the delegated object" do
+      @delegate.untrust
+      @delegate.__getobj__.untrusted?.should be_true
+    end
   end
 end