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author | Hiroshi SHIBATA <hsbt@ruby-lang.org> | 2019-05-13 21:25:22 +0900 |
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committer | Hiroshi SHIBATA <hsbt@ruby-lang.org> | 2019-06-19 18:17:25 +0900 |
commit | 1a2546c2be839baa7d0a50dc056d4d6987d26852 (patch) | |
tree | 19fef5d8b8d96452a51ab68e8093ea895192ca27 /test/racc/assets/ichk.y | |
parent | cbe06cd3501fdadd0e6e63094da2973484d70b0b (diff) |
Backport racc-1.4.15 from upstream.
Diffstat (limited to 'test/racc/assets/ichk.y')
-rw-r--r-- | test/racc/assets/ichk.y | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/test/racc/assets/ichk.y b/test/racc/assets/ichk.y new file mode 100644 index 0000000000..1d359df83e --- /dev/null +++ b/test/racc/assets/ichk.y @@ -0,0 +1,102 @@ +class Calculator + + prechigh + left '*' '/' + left '+' '-' + preclow + + convert + NUMBER 'Number' + end + +rule + + target : exp + | /* none */ { result = 0 } + + exp : exp '+' exp { result += val[2]; a = 'plus' } + | exp '-' exp { result -= val[2]; a = "string test" } + | exp '*' exp { result *= val[2] } + | exp '/' exp { result /= val[2] } + | '(' { $emb = true } exp ')' + { + raise 'must not happen' unless $emb + result = val[2] + } + | '-' NUMBER { result = -val[1] } + | NUMBER + +----header + +class Number +end + +----inner + + def initialize + @racc_debug_out = $stdout + @yydebug = false + end + + def validate(expected, src) + result = parse(src) + unless result == expected + raise "test #{@test_number} fail" + end + @test_number += 1 + end + + def parse(src) + @src = src + @test_number = 1 + yyparse self, :scan + end + + def scan(&block) + @src.each(&block) + end + +----footer + +calc = Calculator.new + +calc.validate(9, [[Number, 9], nil]) + +calc.validate(-3, + [[Number, 5], + ['*', '*'], + [Number, 1], + ['-', '*'], + [Number, 1], + ['*', '*'], + [Number, 8], + nil]) + +calc.validate(-1, + [[Number, 5], + ['+', '+'], + [Number, 2], + ['-', '-'], + [Number, 5], + ['+', '+'], + [Number, 2], + ['-', '-'], + [Number, 5], + nil]) + +calc.validate(-4, + [['-', 'UMINUS'], + [Number, 4], + nil]) + +calc.validate(40, + [[Number, 7], + ['*', '*'], + ['(', '('], + [Number, 4], + ['+', '+'], + [Number, 3], + [')', ')'], + ['-', '-'], + [Number, 9], + nil]) |