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be4528096e
Fix syntax error regarding interface inheritance of the Lexer. It appeared when the `%code lexer` option was used. Reported by ledaniel2. <https://github.com/akimd/bison/issues/84> * data/skeletons/lalr1.d: Fix syntax. * tests/d.at: Test it.
163 lines
4.5 KiB
Plaintext
163 lines
4.5 KiB
Plaintext
# D features tests. -*- Autotest -*-
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# Copyright (C) 2020-2022 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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AT_BANNER([[D Features.]])
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# AT_CHECK_D_MINIMAL([DIRECTIVES], [PARSER_ACTION], [POSITION_CLASS], [EXTRA_USER_CODE])
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# ----------------------------------------------------------------------
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# Check that a minimal parser with DIRECTIVES compiles in D.
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# Put the D code in YYParser.d.
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m4_define([AT_CHECK_D_MINIMAL],
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[
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AT_DATA([[YYParser.y]], [
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%language "D"
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%token END "end"
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[$1]
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%%
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start: END {$2};
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%%
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[$4]
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void main() {}
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])
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AT_BISON_CHECK([[-Wno-deprecated YYParser.y]])
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AT_CHECK([[grep '[mb]4_' YYParser.y]], [1], [ignore])
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AT_COMPILE_D([[YYParser]])
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])
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# AT_CHECK_D_MINIMAL_W_LEXER([1:DIRECTIVES],
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# [2:YYLEX_ACTION], [3:LEXER_BODY], [4:PARSER_ACTION], [5:VALUE_TYPE],
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# [6:POSITION_TYPE], [7:LOCATION_TYPE])
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# ---------------------------------------------------------------------
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# Check that a minimal parser with DIRECTIVES and a body for yylex()
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# compiles in D.
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m4_define([AT_CHECK_D_MINIMAL_W_LEXER],
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[AT_CHECK_D_MINIMAL([$1], [], [], [
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import std.range.primitives;
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import std.stdio;
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auto calcLexer(R)(R range)
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if (isInputRange!R && is (ElementType!R : dchar))
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{
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return new CalcLexer!R(range);
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}
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auto calcLexer (File f)
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{
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import std.algorithm : map, joiner;
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import std.utf : byDchar;
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return f.byChunk(1024) // avoid making a syscall roundtrip per char
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.map!(chunk => cast(char[]) chunk) // because byChunk returns ubyte[]
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.joiner // combine chunks into a single virtual range of char
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.calcLexer; // forward to other overload
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}
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class CalcLexer(R) : Lexer
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if (isInputRange!R && is (ElementType!R : dchar))
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{
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R input;
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this(R r) {
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input = r;
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}
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void yyerror(string s) {}
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Symbol yylex()
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{
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$2
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}
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}
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]
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[
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$3
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], [$4], [$6])])
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# AT_CHECK_D_GREP([LINE], [COUNT=1])
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# -------------------------------------
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# Check that YYParser.d contains exactly COUNT lines matching ^LINE$
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# with grep.
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m4_define([AT_CHECK_D_GREP],
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[AT_CHECK([grep -c '^$1$' YYParser.d], [ignore], [m4_default([$2], [1])
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])])
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## -------------------------------------- ##
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## D parser class extends and implements. ##
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## -------------------------------------- ##
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AT_SETUP([D parser class extends and implements])
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AT_KEYWORDS([d])
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AT_CHECK_D_MINIMAL([])
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AT_CHECK_D_GREP([[class YYParser]])
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AT_CHECK_D_MINIMAL([%define api.parser.extends {BaseClass}], [], [], [class BaseClass {}])
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AT_CHECK_D_GREP([[class YYParser : BaseClass]])
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AT_CHECK_D_MINIMAL([%define api.parser.extends {Interface}], [], [], [interface Interface {}])
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AT_CHECK_D_GREP([[class YYParser : Interface]])
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AT_CHECK_D_MINIMAL([%code lexer
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{
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Symbol yylex () {return Symbol();}
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void yyerror (string s) {import std.stdio;writeln(s);}
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}], [], [], [])
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AT_CHECK_D_GREP([[private class YYLexer: Lexer]])
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AT_CHECK_D_MINIMAL(
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[%define api.parser.extends {BaseClass}
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%define api.parser.implements {Interface}], [], [],
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[class BaseClass {}
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interface Interface {}
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])
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AT_CHECK_D_GREP([[class YYParser : BaseClass, Interface]])
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AT_CHECK_D_MINIMAL(
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[%define api.parser.extends {BaseClass}
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%define api.parser.implements {Interface1, Interface2}], [], [],
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[class BaseClass {}
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interface Interface1 {}
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interface Interface2 {}
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])
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AT_CHECK_D_GREP([[class YYParser : BaseClass, Interface1, Interface2]])
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AT_CLEANUP
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## --------------------------------------------- ##
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## D parser class api.token.raw true by default. ##
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## --------------------------------------------- ##
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AT_SETUP([D parser class api.token.raw true by default])
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AT_KEYWORDS([d])
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AT_CHECK_D_MINIMAL_W_LEXER([
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%define api.token.raw true
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%union { int ival; }], [return Symbol(TokenKind.END);])
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AT_CHECK_D_GREP([[ END = 3,]])
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AT_CHECK_D_MINIMAL_W_LEXER([
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%define api.token.raw false
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%union { int ival; }], [return Symbol(TokenKind.END);])
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AT_CHECK_D_GREP([[ END = 258,]])
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AT_CHECK_D_MINIMAL_W_LEXER([
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%union { int ival; }], [return Symbol(TokenKind.END);])
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AT_CHECK_D_GREP([[ END = 3,]])
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AT_CLEANUP
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