136 lines
3.7 KiB
Ruby
136 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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begin
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require 'ripper'
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require 'test/unit'
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ripper_test = true
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module TestRipper; end
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rescue LoadError
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end
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class TestRipper::Sexp < Test::Unit::TestCase
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def test_compile_error
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assert_nil Ripper.sexp("/")
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assert_nil Ripper.sexp("-")
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assert_nil Ripper.sexp("+")
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assert_nil Ripper.sexp("*")
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assert_nil Ripper.sexp("end")
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assert_nil Ripper.sexp("end 1")
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assert_nil Ripper.sexp("/*")
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assert_nil Ripper.sexp("/*/")
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assert_nil Ripper.sexp("/+/")
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end
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def test_regexp_content
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sexp = Ripper.sexp('//')
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assert_nil search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))
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sexp = Ripper.sexp('/foo/')
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assert_equal 'foo', search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
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sexp = Ripper.sexp("/foo\nbar/")
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assert_equal "foo\nbar", search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
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sexp = Ripper.sexp('/(?<n>a(b|\g<n>))/')
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assert_equal '(?<n>a(b|\g<n>))', search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
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end
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def test_heredoc_content
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sexp = Ripper.sexp("<<E\nfoo\nE")
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assert_equal "foo\n", search_sexp(:@tstring_content, sexp)[1]
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end
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def test_squiggly_heredoc
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sexp = Ripper.sexp("<<~eot\n asdf\neot")
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assert_equal "asdf\n", search_sexp(:@tstring_content, sexp)[1]
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end
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def test_squiggly_heredoc_with_interpolated_expression
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sexp1 = Ripper.sexp(<<-eos)
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<<-eot
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a\#{1}z
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eot
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eos
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sexp2 = Ripper.sexp(<<-eos)
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<<~eot
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a\#{1}z
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eot
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eos
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assert_equal clear_pos(sexp1), clear_pos(sexp2)
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end
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def test_params_mlhs
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sexp = Ripper.sexp("proc {|(w, *x, y), z|}")
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_, ((mlhs, w, (rest, x), y), z) = search_sexp(:params, sexp)
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assert_equal(:mlhs, mlhs)
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assert_equal(:@ident, w[0])
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assert_equal("w", w[1])
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assert_equal(:rest_param, rest)
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assert_equal(:@ident, x[0])
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assert_equal("x", x[1])
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assert_equal(:@ident, y[0])
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assert_equal("y", y[1])
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assert_equal(:@ident, z[0])
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assert_equal("z", z[1])
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end
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def test_def_fname
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sexp = Ripper.sexp("def t; end")
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_, (type, fname,) = search_sexp(:def, sexp)
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assert_equal(:@ident, type)
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assert_equal("t", fname)
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sexp = Ripper.sexp("def <<; end")
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_, (type, fname,) = search_sexp(:def, sexp)
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assert_equal(:@op, type)
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assert_equal("<<", fname)
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end
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def test_defs_fname
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sexp = Ripper.sexp("def self.t; end")
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_, recv, _, (type, fname) = search_sexp(:defs, sexp)
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assert_equal(:var_ref, recv[0], recv)
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assert_equal([:@kw, "self", [1, 4]], recv[1], recv)
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assert_equal(:@ident, type)
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assert_equal("t", fname)
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end
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def test_named_with_default
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sexp = Ripper.sexp("def hello(bln: true, int: 1, str: 'str', sym: :sym) end")
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named = String.new
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search_sexp(:params, sexp)[5].each { |i| named << "#{i}\n" } # join flattens
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exp = "#{<<-"{#"}#{<<~'};'}"
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{#
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[[:@label, "bln:", [1, 10]], [:var_ref, [:@kw, "true", [1, 15]]]]
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[[:@label, "int:", [1, 21]], [:@int, "1", [1, 26]]]
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[[:@label, "str:", [1, 29]], [:string_literal, [:string_content, [:@tstring_content, "str", [1, 35]]]]]
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[[:@label, "sym:", [1, 41]], [:symbol_literal, [:symbol, [:@ident, "sym", [1, 47]]]]]
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};
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assert_equal(exp, named)
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end
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def search_sexp(sym, sexp)
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return sexp if !sexp or sexp[0] == sym
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sexp.find do |e|
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if Array === e and e = search_sexp(sym, e)
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return e
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end
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end
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end
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def clear_pos(sexp)
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return sexp if !sexp
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sexp.each do |e|
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if Array === e
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if e.size == 3 and Array === (last = e.last) and
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last.size == 2 and Integer === last[0] and Integer === last[1]
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last.clear
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else
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clear_pos(e)
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end
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end
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end
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end
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end if ripper_test
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