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# Value type. -*- Autotest -*-
# Copyright (C) 2013-2014 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
AT_BANNER([[Value type tests.]])
## ----------------------------------- ##
## %union vs. %define api.value.type. ##
## ----------------------------------- ##
AT_SETUP([[%union vs. %define api.value.type]])
AT_DATA([[input.y]],
[[%union { int ival; }
%define api.value.type union-directive
%%
exp: %empty;
]])
AT_BISON_CHECK([[input.y]], [[1]], [[]],
[[input.y:2.9-22: error: '%union' and '%define api.value.type' cannot be used together
]])
AT_CLEANUP
## ---------------------------------------- ##
## %yacc vs. %define api.value.type union. ##
## ---------------------------------------- ##
AT_SETUP([[%yacc vs. %define api.value.type union]])
AT_DATA([[input.y]],
[[%yacc
%define api.value.type union
%%
exp: %empty;
]])
AT_BISON_CHECK([[input.y]], [[1]], [[]],
[[input.y:2.9-22: error: '%yacc' and '%define api.value.type "union"' cannot be used together
]])
AT_CLEANUP
## ---------------- ##
## api.value.type. ##
## ---------------- ##
# AT_TEST($1: BISON-DIRECTIVES,
# $2: MORE-BISON-DIRECTIVES,
# $3: PARSER-ACTION,
# $4: INPUT, $5: SCANNER-ACTION,
# $6: RESULT)
# --------------------------------------
# Compile the grammar and check the expected result.
# BISON-DIRECTIVES are passed to AT_SETUP, contrary to MORE-BISON-DIRECTIVES.
m4_pushdef([AT_TEST],
[
AT_SETUP([$1])
AT_KEYWORDS([api.value.type])
AT_BISON_OPTION_PUSHDEFS([%debug $1 $2])
AT_DATA_GRAMMAR([test.y],
[[%debug
%code
{
# include <stdio.h>
# include <stdlib.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
}
]$1[
]$2[
%%
start: $3;
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE([$4], [$5])[
]AT_MAIN_DEFINE[
]])
AT_FULL_COMPILE([[test]])
AT_PARSER_CHECK([./test], 0, [$6
], [stderr])
AT_BISON_OPTION_POPDEFS
AT_CLEANUP
])
m4_foreach([b4_skel], [[yacc.c], [glr.c], [lalr1.cc], [glr.cc]],
[# A built-in type.
AT_TEST([%skeleton "]b4_skel["
%define api.value.type {double}],
[],
['1' '2' { printf ("%2.1f\n", $1 + $2); }],
["12"],
[AT_VAL = (res - '0') / 10.0],
[0.3])
# A typedef which looks like a Bison keyword, but it's using braces.
AT_TEST([%skeleton "]b4_skel["
%define api.value.type {variant}],
[%code requires { typedef double variant; }],
['1' '2' { printf ("%2.1f\n", $1 + $2); }],
["12"],
[AT_VAL = (res - '0') / 10.0],
[0.3])
# A user defined struct.
AT_TEST([%skeleton "]b4_skel["
%define api.value.type {struct foo}],
[%code requires { struct foo { float fval; int ival; }; }],
['1' '2'
{ printf ("%d %2.1f\n", $1.ival + $2.ival, $1.fval + $2.fval); }],
["12"],
[AT_VAL.ival = (res - '0') * 10;
AT_VAL.fval = (res - '0') / 10.f],
[30 0.3])
# A user defined struct that uses pointers.
AT_TEST([%skeleton "]b4_skel["
%define api.value.type {struct bar}],
[%code requires
{
struct u
{
int ival;
};
struct bar
{
struct u *up;
};
}
%token <up->ival> '1' '2'
%printer { ]AT_SKEL_CC_IF([[yyoutput << $$]],
[[fprintf (yyo, "%d", $$)]])[; } <up->ival>
],
['1' '2'
{
printf ("%d %d\n", $1, $<up->ival>2);
free ($<up>1);
free ($<up>2);
}],
["12"],
[AT_VAL.up = (struct u *) malloc (sizeof *AT_VAL.up);
assert (AT_VAL.up);
AT_VAL.up->ival = res - '0';],
[1 2])
# A user defined union.
AT_TEST([%skeleton "]b4_skel["
%define api.value.type {union foo}],
[%code requires { union foo { float fval; int ival; }; }],
['1' '2' { printf ("%d %2.1f\n", $1.ival, $2.fval); }],
["12"],
[if (res == '1')
AT_VAL.ival = 10;
else
AT_VAL.fval = .2f],
[10 0.2])
# A %union.
AT_TEST([%skeleton "]b4_skel["
%union { float fval; int ival; };],
[%token <ival> '1';
%token <fval> '2';],
['1' '2' { printf ("%d %2.1f\n", $1, $2); }],
["12"],
[if (res == '1')
AT_VAL.ival = 10;
else
AT_VAL.fval = 0.2f],
[10 0.2])
# A Bison-defined union.
# The tokens names are not available directly in C++, we use their
# user number to keep it simple between C and C++.
AT_TEST([%skeleton "]b4_skel["
%define api.value.type union],
[%token <int> ONE 101;
%token <float> TWO 102 THREE 103;
%printer { ]AT_SKEL_CC_IF([[yyoutput << $$]],
[[fprintf (yyo, "%d", $$)]])[; } <int>
%printer { ]AT_SKEL_CC_IF([[yyoutput << $$]],
[[fprintf (yyo, "%f", $$)]])[; } <float>
],
[ONE TWO THREE { printf ("%d %2.1f %2.1f\n", $1, $2, $3); }],
[{ 101, 102, 103, EOF }],
[if (res == 101)
AT_VAL.ONE = 10;
else if (res == 102)
AT_VAL.TWO = .2f;
else if (res == 103)
AT_VAL.THREE = 3.3f],
[10 0.2 3.3])
# A Bison-defined variant, for lalr1.cc only.
m4_if(b4_skel, [lalr1.cc], [
AT_TEST([%skeleton "]b4_skel["
%define api.value.type variant],
[%token <int> '1';
%token <std::string> '2';],
['1' '2' { std::cout << $1 << ", " << $2 << std::endl; }],
["12"],
[if (res == '1')
AT_VAL.build(10);
else
AT_VAL.build<std::string>("two");],
[10, two])])
])
m4_popdef([AT_TEST])
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