ruby.git/test/ripper/test_parser_events.rb, branch v4.0.3

[Bug #21712] Allow `.()` call for command with block

2025-12-11T09:35:39+00:00

This commit allows codes like `a b do end.()` and `a b do end&.()`.

Fix leak of token_info when Ripper#warn jumps

2024-08-07T13:14:14+00:00

For example, the following code leaks:

    class MyRipper < Ripper
      def initialize(src, &blk)
        super(src)
        @blk = blk
      end

      def warn(msg, *args) = @blk.call(msg)
    end

    $VERBOSE = true
    def call_parse = MyRipper.new("if true\n  end\n") { |msg| return msg }.parse

    10.times do
      500_000.times do
        call_parse
      end

      puts `ps -o rss= -p #{$$}`
    end

Before:

    37536
    53744
    70064
    86448
    102576
    119120
    135248
    151216
    167744
    183824

After:

    19280
    19696
    19728
    20336
    20448
    21408
    21616
    21616
    21824
    21840

Fix leak in warning of duplicate keys when Ripper#warn jumps

2024-08-06T14:19:50+00:00

For example, the following code leaks:

    class MyRipper < Ripper
      def initialize(src, &blk)
        super(src)
        @blk = blk
      end

      def warn(msg, *args) = @blk.call(msg)
    end

    $VERBOSE = true
    def call_parse = MyRipper.new("if true\n  end\n") { |msg| return msg }.parse

    10.times do
      500_000.times do
        call_parse
      end

      puts `ps -o rss= -p #{$$}`
    end

Before:

    34832
    51952
    69760
    88048
    105344
    123040
    141152
    159152
    176656
    194272

After:

    18400
    20256
    20272
    20272
    20272
    20304
    20368
    20368
    20368
    20400

Fix leak of AST when Ripper#compile_error jumps

2024-07-31T18:47:44+00:00

For example, the following script leaks:

    class MyRipper < Ripper
      def initialize(src, &blk)
        super(src)
        @blk = blk
      end

      def compile_error(msg) = @blk.call(msg)
    end

    def call_parse = MyRipper.new("/") { |msg| return msg }.parse

    10.times do
      100_000.times do
        call_parse
      end

      puts `ps -o rss= -p #{$$}`
    end

Before:

    93952
    169040
    244224
    318784
    394432
    468224
    544048
    618560
    693776
    768384

After:

    19776
    19776
    20352
    20880
    20912
    21408
    21328
    21152
    21472
    20944

ripper: Fix excess `compile_error` at simple backref op_asgn

2024-06-07T02:28:38+00:00

Fix up 89cfc1520717257073012ec07105c551e4b8af7c.

Update duplicated when clause warning message

2024-05-24T16:36:54+00:00

ripper: Fix opassign when assignment to backref variables

2024-05-12T06:38:22+00:00

ripper: Use `$&` instead of quoting charaters in tests

2024-05-12T06:36:42+00:00

Fix SEGV when ripper hits `backref_error` on `command_asgn` or `arg`

2024-05-11T11:47:15+00:00

Emit `warn` event for duplicated hash keys on ripper

2024-04-14T21:29:25+00:00

Need to use `rb_warn` macro instead of calling `rb_compile_warn`
directly to emit `warn` event on ripper.