summaryrefslogtreecommitdiff
path: root/yarvtest/test_eval.rb
blob: 8a82c4cff4b150208bf89b5ee93ebccf8240498c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
require 'yarvtest/yarvtest'

class TestEval < YarvTestBase
  def test_eval
    ae %q{
      eval('1')
    }
    ae %q{
      eval('a=1; a')
    }
    ae %q{
      a = 1
      eval('a')
    }
  end

  def test_eval_with_send
    ae %q{
      __send! :eval, %{
        :ok
      }
    }
    ae %q{
      1.__send! :instance_eval, %{
        :ok
      }
    }
  end

  def test_module_eval
    ae %q{
      Const = :top
      class C
        Const = :C
      end
      C.module_eval{
        Const
      }
    }
    ae %q{
      Const = :top
      class C
        Const = :C
      end
      C.module_eval %{
        Const
      }
    } if false # TODO: Ruby 1.9 error

    ae %q{
      Const = :top
      class C
        Const = :C
      end
      C.class_eval %{
        def m
          Const
        end
      }
      C.new.m
    }
    ae %q{
      Const = :top
      class C
        Const = :C
      end
      C.class_eval{
        def m
          Const
        end
      }
      C.new.m
    }
  end

  def test_instance_eval
    ae %q{
      1.instance_eval{
        self
      }
    }
    ae %q{
      'foo'.instance_eval{
        self
      }
    }
    ae %q{
      class Fixnum
        Const = 1
      end
      1.instance_eval %{
        Const
      }
    }
  end
  
  def test_nest_eval
    ae %q{
      Const = :top
      class C
        Const = :C
      end
      $nest = false
      $ans = []
      def m
        $ans << Const
        C.module_eval %{
          $ans << Const
          Boo = false unless defined? Boo
          unless $nest
            $nest = true
            m
          end
        }
      end
      m
      $ans
    }
    ae %q{
      $nested = false
      $ans = []
      $pr = proc{
        $ans << self
        unless $nested
          $nested = true
          $pr.call
        end
      }
      class C
        def initialize &b
          10.instance_eval(&b)
        end
      end
      C.new(&$pr)
      $ans
    }
  end

  def test_binding
    ae %q{
      def m
        a = :ok
        $b = binding
      end
      m
      eval('a', $b)
    }
    ae %q{
      def m
        a = :ok
        $b = binding
      end
      m
      eval('b = :ok2', $b)
      eval('[a, b]', $b)
    }
    ae %q{
      $ans = []
      def m
        $b = binding
      end
      m
      $ans << eval(%q{
        $ans << eval(%q{
          a
        }, $b)
        a = 1
      }, $b)
      $ans
    }
    ae %q{
      Const = :top
      class C
        Const = :C
        def m
          binding
        end
      end
      eval('Const', C.new.m)
    }
    ae %q{
      Const = :top
      a = 1
      class C
        Const = :C
        def m
          eval('Const', TOPLEVEL_BINDING)
        end
      end
      C.new.m
    }
    ae %q{
      class C
        $b = binding
      end
      eval %q{
        def m
          :ok
        end
      }, $b
      p C.new.m
    }
    ae %q{
      b = proc{
        a = :ok
        binding
      }.call
      a = :ng
      eval("a", b)
    }
    ae %q{
      class C
        def foo
          binding
        end
      end
      C.new.foo.eval("self.class.to_s")
    }
  end
end