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-rw-r--r--lib/irb.rb5
-rw-r--r--lib/irb/context.rb6
-rw-r--r--test/irb/test_context.rb9
3 files changed, 18 insertions, 2 deletions
diff --git a/lib/irb.rb b/lib/irb.rb
index 16c03e964f..98bcac016d 100644
--- a/lib/irb.rb
+++ b/lib/irb.rb
@@ -439,6 +439,8 @@ module IRB
# Evaluates input for this session.
def eval_input
+ last_error = nil
+
@scanner.set_prompt do
|ltype, indent, continue, line_no|
if ltype
@@ -488,7 +490,7 @@ module IRB
signal_status(:IN_EVAL) do
begin
line.untaint
- @context.evaluate(line, line_no)
+ @context.evaluate(line, line_no, exception: last_error)
output_value if @context.echo?
exc = nil
rescue Interrupt => exc
@@ -497,6 +499,7 @@ module IRB
rescue Exception => exc
end
if exc
+ last_error = exc
handle_exception(exc)
end
end
diff --git a/lib/irb/context.rb b/lib/irb/context.rb
index 1a06ebfad1..b82aaea6a6 100644
--- a/lib/irb/context.rb
+++ b/lib/irb/context.rb
@@ -376,8 +376,12 @@ module IRB
@debug_level > 0
end
- def evaluate(line, line_no) # :nodoc:
+ def evaluate(line, line_no, exception: nil) # :nodoc:
@line_no = line_no
+ if exception
+ line = "begin ::Kernel.raise _; rescue _.class; #{line}; end"
+ @workspace.local_variable_set(:_, exception)
+ end
set_last_value(@workspace.evaluate(self, line, irb_path, line_no))
end
diff --git a/test/irb/test_context.rb b/test/irb/test_context.rb
index 35141a41a4..1faf2b373d 100644
--- a/test/irb/test_context.rb
+++ b/test/irb/test_context.rb
@@ -40,5 +40,14 @@ module TestIRB
assert_same(obj, @context.last_value)
assert_same(obj, @context.evaluate('_', 1))
end
+
+ def test_evaluate_with_exception
+ assert_nil(@context.evaluate("$!", 1))
+ e = assert_raise_with_message(RuntimeError, 'foo') {
+ @context.evaluate("raise 'foo'", 1)
+ }
+ assert_equal('foo', e.message)
+ assert_same(e, @context.evaluate('$!', 1, exception: e))
+ end
end
end