Added other methods for `Binding`

- Added to `mruby-binding-core`
  - `Binding#local_variable_defined?`
  - `Binding#local_variable_get`
  - `Binding#local_variable_set`
  - `Binding#local_variables`
  - `Binding#receiver`
  - `Binding#source_location`
  - `Binding#inspect`
- Added to `mruby-proc-binding`
  - `Proc#binding`

The reason for separating `Proc#binding` is that core-mrbgems has a method that returns a closure object to minimize possible problems with being able to manipulate internal variables.
By separating it as different mrbgem, each user can judge this problem and incorporate it arbitrarily.

1 files changed, 29 insertions, 0 deletions

diff --git a/mrbgems/mruby-binding-core/test/binding-core.rb b/mrbgems/mruby-binding-core/test/binding-core.rb
index d93f43619..066e79b18 100644
--- a/mrbgems/mruby-binding-core/test/binding-core.rb
+++ b/mrbgems/mruby-binding-core/test/binding-core.rb
@@ -9,3 +9,32 @@ assert("Binding#local_variables") do
   end
   assert_equal [:a, :b, :block], block.call(0).local_variables.sort
 end
+
+assert("Binding#local_variable_set") do
+  bind = binding
+  1.times {
+    assert_equal(9, bind.local_variable_set(:x, 9))
+    assert_raise(NameError) { x }
+    assert_equal([:bind, :x], bind.local_variables.sort)
+  }
+end
+
+assert("Binding#local_variable_get") do
+  bind = binding
+  x = 1
+  1.times {
+    y = 2
+    assert_equal(1, bind.local_variable_get(:x))
+    x = 10
+    assert_equal(10, bind.local_variable_get(:x))
+    assert_raise(NameError) { bind.local_variable_get(:y) }
+    assert_equal([:bind, :x], bind.local_variables.sort)
+  }
+end
+
+assert("Binding#source_location") do
+  skip unless -> {}.source_location
+
+  bind, source_location = binding, [__FILE__, __LINE__]
+  assert_equal source_location, bind.source_location
+end