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Test that parsers with missing lexical action handlers generate errors

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This commit is contained in:
Charles Baker 2023-05-21 20:15:29 +12:00
parent d8948dd936
commit 77602f9052
1 changed files with 28 additions and 0 deletions
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28
src/lalr/lalr_test/TestParsers.cpp
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@ -1255,4 +1255,32 @@ SUITE( Parsers )
CHECK( parser.accepted() );
CHECK( parser.full() );
}
TEST( MissingLexicalActionHandler )
{
const char* line_comment_grammar =
"MissingLexicalActionHandler {\n"
" %whitespace \"([ \\t\\r\\n]|\\/\\/:line_comment:)*\";\n"
" unit: '1';\n"
"}"
;
GrammarCompiler compiler;
compiler.compile( line_comment_grammar, line_comment_grammar + strlen(line_comment_grammar) );
Parser<const char*> parser( compiler.parser_state_machine() );
CHECK( !parser.valid() );
const char* input = "1";
parser.parse( input, input + strlen(input) );
CHECK( !parser.accepted() );
CHECK( !parser.full() );
parser.lexer_action_handlers()
( "line_comment", &line_comment<const char*> )
;
parser.parse( input, input + strlen(input) );
CHECK( parser.accepted() );
CHECK( parser.full() );
}
}