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Test the make_TOKEN interface.

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* tests/c++.at (AT_CHECK_VARIANTS): Require and use locations.
	Factor the common code in yylex.
	Use it to test "%define lex_symbol".
This commit is contained in:
Akim Demaille
2008-10-10 16:58:22 +02:00
committed by Akim Demaille
parent 7d3e21ba7b
commit dddec53788
2 changed files with 67 additions and 36 deletions
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96
tests/c++.at
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@@ -33,6 +33,7 @@ AT_DATA([list.yy],
%skeleton "lalr1.cc"
%defines
%define variant
%locations
]m4_bpatsubst([$1], [\\n], [
])[
@@ -50,10 +51,15 @@ typedef std::list<std::string> strings_type;
#include <iterator>
#include <sstream>
// Prototype of the yylex function providing subsequent tokens.
static yy::parser::token_type yylex(yy::parser::semantic_type* yylval);
static
#if defined USE_LEX_SYMBOL
yy::parser::symbol_type yylex ();
#else
yy::parser::token_type yylex (yy::parser::semantic_type* yylval,
yy::parser::location_type* yylloc);
#endif
// Printing a list of strings.
// Printing a list of strings (for %printer).
// Koening look up will look into std, since that's an std::list.
namespace std
{
@@ -103,45 +109,62 @@ item:
;
%%
#define STAGE_MAX 5
static
yy::parser::token_type
yylex(yy::parser::semantic_type* yylval)
#if defined USE_LEX_SYMBOL
yy::parser::symbol_type yylex()
#else
yy::parser::token_type yylex(yy::parser::semantic_type* yylval,
yy::parser::location_type* yylloc)
#endif
{
static int stage = 0;
yy::parser::token_type result;
switch (stage)
{
case 0:
case 4:
#ifdef ONE_STAGE_BUILD
yylval->build(string_cast(stage));
#else
yylval->build<std::string>() = string_cast(stage);
#endif
result = yy::parser::token::TEXT;
break;
case 1:
case 2:
case 3:
#ifdef ONE_STAGE_BUILD
yylval->build(stage);
#else
yylval->build<int>() = stage;
#endif
result = yy::parser::token::NUMBER;
break;
default:
result = yy::parser::token::END_OF_FILE;
break;
}
typedef yy::parser::token token;
typedef yy::parser::location_type location_type;
static int stage = -1;
++stage;
return result;
if (stage == STAGE_MAX)
{
#if defined USE_LEX_SYMBOL
return yy::parser::make_END_OF_FILE (location_type ());
#else
*yylloc = location_type ();
return token::END_OF_FILE;
#endif
}
else if (stage % 2)
{
#if defined USE_LEX_SYMBOL
return yy::parser::make_NUMBER (stage, location_type ());
#else
# if defined ONE_STAGE_BUILD
yylval->build(stage);
# else
yylval->build<int>() = stage;
# endif
*yylloc = location_type ();
return token::NUMBER;
#endif
}
else
{
#if defined USE_LEX_SYMBOL
return yy::parser::make_TEXT (string_cast (stage), location_type ());
#else
# if defined ONE_STAGE_BUILD
yylval->build (string_cast (stage));
# else
yylval->build<std::string>() = string_cast (stage);
# endif
*yylloc = location_type ();
return token::TEXT;
#endif
}
abort();
}
void
yy::parser::error(const std::string& message)
yy::parser::error(const yy::parser::location_type&,
const std::string& message)
{
std::cerr << message << std::endl;
}
@@ -171,6 +194,7 @@ AT_CLEANUP
AT_CHECK_VARIANTS([])
AT_CHECK_VARIANTS([%define assert])
AT_CHECK_VARIANTS([[%define assert %code {\n#define ONE_STAGE_BUILD\n}]])
AT_CHECK_VARIANTS([[%define assert %define lex_symbol %code {\n#define USE_LEX_SYMBOL\n}]])
## ----------------------- ##