gistfile1.txt

From fd64fb7a97d980432161152934035d7d9c724a07 Mon Sep 17 00:00:00 2001
From: Paolo Capriotti <p.capriotti@gmail.com>
Date: Sat, 10 Jul 2010 12:34:15 +0100
Subject: [PATCH] Add spec for C API rb_throw.

---
 spec/ruby/optional/capi/ext/kernel_spec.c |   11 +++++++++++
 spec/ruby/optional/capi/ext/rubyspec.h    |    1 +
 spec/ruby/optional/capi/kernel_spec.rb    |   20 ++++++++++++++++++++
 3 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/spec/ruby/optional/capi/ext/kernel_spec.c b/spec/ruby/optional/capi/ext/kernel_spec.c
index 1cf23fd..e368a55 100644
--- a/spec/ruby/optional/capi/ext/kernel_spec.c
+++ b/spec/ruby/optional/capi/ext/kernel_spec.c
@@ -56,6 +56,13 @@ VALUE kernel_spec_rb_raise(VALUE self, VALUE hash) {
 }
 #endif
 
+#ifdef HAVE_RB_THROW
+VALUE kernel_spec_rb_throw(VALUE self, VALUE result) {
+  rb_throw("foo", result);
+  return ID2SYM(rb_intern("broken"));
+}
+#endif
+
 #ifdef HAVE_RB_RESCUE
 VALUE kernel_spec_rb_rescue(VALUE self, VALUE main_proc, VALUE arg,
                             VALUE raise_proc, VALUE arg2) {
@@ -138,6 +145,10 @@ void Init_kernel_spec() {
   rb_define_method(cls, "rb_raise", kernel_spec_rb_raise, 1);
 #endif
 
+#ifdef HAVE_RB_THROW
+  rb_define_method(cls, "rb_throw", kernel_spec_rb_throw, 1);
+#endif
+
 #ifdef HAVE_RB_RESCUE
   rb_define_method(cls, "rb_rescue", kernel_spec_rb_rescue, 4);
 #endif
diff --git a/spec/ruby/optional/capi/ext/rubyspec.h b/spec/ruby/optional/capi/ext/rubyspec.h
index 44e04cd..72d326e 100644
--- a/spec/ruby/optional/capi/ext/rubyspec.h
+++ b/spec/ruby/optional/capi/ext/rubyspec.h
@@ -148,6 +148,7 @@
 #define HAVE_RB_ENSURE                     1
 #define HAVE_RB_EVAL_STRING                1
 #define HAVE_RB_RAISE                      1
+#define HAVE_RB_THROW                      1
 #define HAVE_RB_RESCUE                     1
 #define HAVE_RB_RESCUE2                    1
 #define HAVE_RB_SYS_FAIL                   1
diff --git a/spec/ruby/optional/capi/kernel_spec.rb b/spec/ruby/optional/capi/kernel_spec.rb
index 447e38d..ff8ee2f 100644
--- a/spec/ruby/optional/capi/kernel_spec.rb
+++ b/spec/ruby/optional/capi/kernel_spec.rb
@@ -29,6 +29,26 @@ describe "C-API Kernel function" do
     end
   end
 
+  describe "rb_throw" do
+    it "sets the return value of the catch block to the specified value" do
+      res = catch :foo do
+        @s.rb_throw(:return_value)
+      end
+      res.should == :return_value
+    end
+
+    it "terminates the function at the point it was called" do
+      catch(:foo) do
+        @s.rb_throw(nil)
+        fail("throw didn't transfer control")
+      end.should_not == :broken
+    end
+
+    it "raises a NameError if there is no catch block for the symbol" do
+      lambda { @s.rb_throw(nil) }.should raise_error(NameError)
+    end
+  end
+
   describe "rb_warn" do
     before :each do
       @stderr, $stderr = $stderr, IOStub.new
-- 
1.7.0.4