ext/coverage/coverage.c: method coverage has column info. of method def.

This change makes method coverage result have not only first lineno of
method defintion, but also code range (i.e. first lineno, first column,
last lineno, and last column).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61026 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/coverage/coverage.c

@@ -128,7 +128,7 @@ method_coverage_i(void *vstart, void *vend, size_t stride, void *data)
     for (v = (VALUE)vstart; v != (VALUE)vend; v += stride) {
 	if (RB_TYPE_P(v, T_IMEMO) && imemo_type(v) == imemo_ment) {
 	    const rb_method_entry_t *me = (rb_method_entry_t *) v;
-	    VALUE path = Qundef, first_lineno = Qundef;
+	    VALUE path, first_lineno, first_column, last_lineno, last_column;
 	    VALUE data[5], ncoverage, methods;
 	    VALUE methods_id = ID2SYM(rb_intern("methods"));
 	    VALUE klass;
@@ -140,6 +140,9 @@ method_coverage_i(void *vstart, void *vend, size_t stride, void *data)
 	    }
 	    path = data[0];
 	    first_lineno = data[1];
+	    first_column = data[2];
+	    last_lineno = data[3];
+	    last_column = data[4];
 	    if (FIX2LONG(first_lineno) <= 0) continue;
 	    ncoverage = rb_hash_aref(ncoverages, path);
 	    if (NIL_P(ncoverage)) continue;
@@ -148,7 +151,7 @@ method_coverage_i(void *vstart, void *vend, size_t stride, void *data)
 	    {
 		VALUE method_id = ID2SYM(me->def->original_id);
 		VALUE rcount = rb_hash_aref(me2counter, (VALUE) me);
-		VALUE key = rb_ary_new_from_args(3, klass, method_id, first_lineno);
+		VALUE key = rb_ary_new_from_args(6, klass, method_id, first_lineno, first_column, last_lineno, last_column);
 		VALUE rcount2 = rb_hash_aref(methods, key);
 
 		if (NIL_P(rcount)) rcount = LONG2FIX(0);

test/coverage/test_coverage.rb

@@ -340,16 +340,16 @@ class TestCoverage < Test::Unit::TestCase
   def test_method_coverage
     result = {
       :methods => {
-        [Object, :bar, 2] => 1,
+        [Object, :bar, 2, 0, 3, 3] => 1,
-        [Object, :baz, 4] => 0,
+        [Object, :baz, 4, 1, 4, 13] => 0,
-        [Object, :foo, 1] => 2,
+        [Object, :foo, 1, 0, 1, 12] => 2,
       }
     }
-    assert_coverage(<<-"end;", { methods: true }, result)
+    assert_coverage(<<~"end;", { methods: true }, result)
       def foo; end
       def bar
       end
-      def baz; end
+       def baz; end
 
       foo
       foo
@@ -360,12 +360,12 @@ class TestCoverage < Test::Unit::TestCase
   def test_method_coverage_for_define_method
     result = {
       :methods => {
-        [Object, :bar, 2] => 1,
+        [Object, :bar, 2, 20, 3, 1] => 1,
-        [Object, :baz, 4] => 0,
+        [Object, :baz, 4, 9, 4, 11] => 0,
-        [Object, :foo, 1] => 2,
+        [Object, :foo, 1, 20, 1, 22] => 2,
       }
     }
-    assert_coverage(<<-"end;", { methods: true }, result)
+    assert_coverage(<<~"end;", { methods: true }, result)
       define_method(:foo) {}
       define_method(:bar) {
       }
@@ -387,7 +387,7 @@ class TestCoverage < Test::Unit::TestCase
   def test_method_coverage_for_alias
     _C = DummyConstant.new("C")
     _M = DummyConstant.new("M")
-    code = <<-"end;"
+    code = <<~"end;"
       module M
         def foo
         end
@@ -403,19 +403,19 @@ class TestCoverage < Test::Unit::TestCase
 
     result = {
       :methods => {
-        [_C, :baz, 8] => 0,
+        [_C, :baz, 8, 2, 9, 5] => 0,
-        [_M, :foo, 2] => 0,
+        [_M, :foo, 2, 2, 3, 5] => 0,
       }
     }
     assert_coverage(code, { methods: true }, result)
 
     result = {
       :methods => {
-        [_C, :baz, 8] => 12,
+        [_C, :baz, 8, 2, 9, 5] => 12,
-        [_M, :foo, 2] =>  3,
+        [_M, :foo, 2, 2, 3, 5] =>  3,
       }
     }
-    assert_coverage(code + <<-"end;", { methods: true }, result)
+    assert_coverage(code + <<~"end;", { methods: true }, result)
       obj = C.new
       1.times { obj.foo }
       2.times { obj.bar }
@@ -427,7 +427,7 @@ class TestCoverage < Test::Unit::TestCase
   def test_method_coverage_for_singleton_class
     _singleton_Foo = DummyConstant.new("#<Class:Foo>")
     _Foo = DummyConstant.new("Foo")
-    code = <<-"end;"
+    code = <<~"end;"
       class Foo
         def foo
         end
@@ -447,8 +447,8 @@ class TestCoverage < Test::Unit::TestCase
 
     result = {
       :methods => {
-        [_singleton_Foo, :baz, 5] => 12,
+        [_singleton_Foo, :baz, 5, 2, 6, 5] => 12,
-        [_Foo, :foo, 2] =>  3,
+        [_Foo, :foo, 2, 2, 3, 5] => 3,
       }
     }
     assert_coverage(code, { methods: true }, result)