# Java tests for simple calculator. -*- Autotest -*-
# Copyright (C) 2007-2012 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([[Java Calculator.]])
# ------------------------- #
# Helping Autotest macros. #
# ------------------------- #
# _AT_DATA_JAVA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES])
# ----------------------------------------------------------------------
# Produce `calc.y'. Don't call this macro directly, because it contains
# some occurrences of `$1' etc. which will be interpreted by m4. So
# you should call it with $1, $2, and $3 as arguments, which is what
# AT_DATA_JAVA_CALC_Y does.
m4_define([_AT_DATA_JAVA_CALC_Y],
[m4_if([$1$2$3], $[1]$[2]$[3], [],
[m4_fatal([$0: Invalid arguments: $@])])dnl
AT_BISON_OPTION_PUSHDEFS([%language "Java" $4])
AT_DATA([Calc.y],
[[/* Infix notation calculator--calc */
%language "Java"
%name-prefix "Calc"
%define parser_class_name "Calc"
%define public
]$4[
%code imports {
import java.io.StreamTokenizer;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.IOException;
}
/* Bison Declarations */
%token <Integer> NUM "number"
%type <Integer> exp
%nonassoc '=' /* comparison */
%left '-' '+'
%left '*' '/'
%left NEG /* negation--unary minus */
%right '^' /* exponentiation */
/* Grammar follows */
%%
input:
line
| input line
;
line:
'\n'
| exp '\n'
| error '\n'
;
exp:
NUM { $$ = $1; }
| exp '=' exp
{
if ($1.intValue () != $3.intValue ())
yyerror (]AT_LOCATION_IF([[@$,]])[ "calc: error: " + $1 + " != " + $3);
}
| exp '+' exp { $$ = new Integer ($1.intValue () + $3.intValue ()); }
| exp '-' exp { $$ = new Integer ($1.intValue () - $3.intValue ()); }
| exp '*' exp { $$ = new Integer ($1.intValue () * $3.intValue ()); }
| exp '/' exp { $$ = new Integer ($1.intValue () / $3.intValue ()); }
| '-' exp %prec NEG { $$ = new Integer (-$2.intValue ()); }
| exp '^' exp { $$ = new Integer ((int)
Math.pow ($1.intValue (),
$3.intValue ())); }
| '(' exp ')' { $$ = $2; }
| '(' error ')' { $$ = new Integer (1111); }
| '!' { $$ = new Integer (0); return YYERROR; }
| '-' error { $$ = new Integer (0); return YYERROR; }
;
]AT_LEXPARAM_IF([[
%code lexer {
]],
[[
%%
class CalcLexer implements Calc.Lexer {
]])[
StreamTokenizer st;
public ]AT_LEXPARAM_IF([[YYLexer]], [[CalcLexer]]) (InputStream is)
{
st = new StreamTokenizer (new InputStreamReader (is));
st.resetSyntax ();
st.eolIsSignificant (true);
st.whitespaceChars (9, 9);
st.whitespaceChars (32, 32);
st.wordChars (48, 57);
}
AT_LOCATION_IF([[
Position yypos = new Position (1, 0);
public Position getStartPos() {
return yypos;
}
public Position getEndPos() {
return yypos;
}
]])[
]AT_YYERROR_DEFINE[
Integer yylval;
public Object getLVal() {
return yylval;
}
public int yylex () throws IOException {
int ttype = st.nextToken ();
]AT_LOCATION_IF([[yypos = new Position (yypos.lineno (),
yypos.token () + 1);]])[
if (ttype == st.TT_EOF)
return Calc.EOF;
else if (ttype == st.TT_EOL)
{
]AT_LOCATION_IF([[yypos = new Position (yypos.lineno () + 1, 0);]])[
return (int) '\n';
}
else if (ttype == st.TT_WORD)
{
yylval = new Integer (st.sval);
return Calc.NUM;
}
else
return st.ttype;
}
]AT_LEXPARAM_IF([[
};
%%]], [[
}]])
[
class Position {
public int line;
public int token;
public Position ()
{
line = 0;
token = 0;
}
public Position (int l, int t)
{
line = l;
token = t;
}
public boolean equals (Position l)
{
return l.line == line && l.token == token;
}
public String toString ()
{
return Integer.toString (line) + "." + Integer.toString(token);
}
public int lineno ()
{
return line;
}
public int token ()
{
return token;
}
}
]])
AT_BISON_OPTION_POPDEFS
])# _AT_DATA_JAVA_CALC_Y
# AT_DATA_CALC_Y([BISON-OPTIONS])
# -------------------------------
# Produce `calc.y'.
m4_define([AT_DATA_JAVA_CALC_Y],
[_AT_DATA_JAVA_CALC_Y($[1], $[2], $[3], [$1])
])
# _AT_CHECK_JAVA_CALC_ERROR(BISON-OPTIONS, INPUT,
# [VERBOSE-AND-LOCATED-ERROR-MESSAGE])
# --------------------------------------------------------------
# Run `calc' on INPUT, and expect a `syntax error' message.
#
# If INPUT starts with a slash, it is used as absolute input file name,
# otherwise as contents.
#
# The VERBOSE-AND-LOCATED-ERROR-MESSAGE is stripped of locations
# and expected tokens if necessary, and compared with the output.
m4_define([_AT_CHECK_JAVA_CALC_ERROR],
[m4_bmatch([$2], [^/],
[AT_JAVA_PARSER_CHECK([Calc < $2], 0, [], [stderr])],
[AT_DATA([[input]],
[[$2
]])
AT_JAVA_PARSER_CHECK([Calc < input], 0, [], [stderr])])
# Normalize the observed and expected error messages, depending upon the
# options.
# 1. Create the reference error message.
AT_DATA([[expout]],
[$3
])
# 2. If locations are not used, remove them.
AT_YYERROR_SEES_LOC_IF([],
[[sed 's/^[-0-9.]*: //' expout >at-expout
mv at-expout expout]])
# 3. If error-verbose is not used, strip the`, unexpected....' part.
m4_bmatch([$1], [%error-verbose], [],
[[sed 's/syntax error, .*$/syntax error/' expout >at-expout
mv at-expout expout]])
# 4. Check
AT_CHECK([cat stderr], 0, [expout])
])
# _AT_CHECK_JAVA_CALC([BISON-DIRECTIVES], [BISON-CODE])
# -----------------------------------------------------------------------
# Start a testing chunk which compiles `calc' grammar with
# BISON-DIRECTIVES, and performs several tests over the parser.
m4_define([_AT_CHECK_JAVA_CALC],
[# We use integers to avoid dependencies upon the precision of doubles.
AT_SETUP([Calculator $1])
AT_BISON_OPTION_PUSHDEFS([$1])
AT_DATA_JAVA_CALC_Y([$1
%code {
$2
}])
AT_BISON_CHECK([-o Calc.java Calc.y])
AT_JAVA_COMPILE([Calc.java])
# Test the priorities.
AT_DATA([[input]],
[[1 + 2 * 3 = 7
1 + 2 * -3 = -5
-1^2 = -1
(-1)^2 = 1
---1 = -1
1 - 2 - 3 = -4
1 - (2 - 3) = 2
2^2^3 = 256
(2^2)^3 = 64
]])
AT_JAVA_PARSER_CHECK([Calc < input], 0, [], [stderr])
# Some syntax errors.
_AT_CHECK_JAVA_CALC_ERROR([$1], [0 0],
[1.2: syntax error, unexpected number])
_AT_CHECK_JAVA_CALC_ERROR([$1], [1//2],
[1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
_AT_CHECK_JAVA_CALC_ERROR([$1], [error],
[1.1: syntax error, unexpected $undefined])
_AT_CHECK_JAVA_CALC_ERROR([$1], [1 = 2 = 3],
[1.4: syntax error, unexpected '='])
_AT_CHECK_JAVA_CALC_ERROR([$1], [
+1],
[2.1: syntax error, unexpected '+'])
# Exercise error messages with EOF: work on an empty file.
_AT_CHECK_JAVA_CALC_ERROR([$1], [/dev/null],
[1.1: syntax error, unexpected end of input])
# Exercise the error token: without it, we die at the first error,
# hence be sure to
#
# - have several errors which exercise different shift/discardings
# - (): nothing to pop, nothing to discard
# - (1 + 1 + 1 +): a lot to pop, nothing to discard
# - (* * *): nothing to pop, a lot to discard
# - (1 + 2 * *): some to pop and discard
#
# - test the action associated to `error'
#
# - check the lookahead that triggers an error is not discarded
# when we enter error recovery. Below, the lookahead causing the
# first error is ")", which is needed to recover from the error and
# produce the "0" that triggers the "0 != 1" error.
#
_AT_CHECK_JAVA_CALC_ERROR([$1],
[() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],
[1.2: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
1.11: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
1.14: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
1.24: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
1.1-1.27: calc: error: 4444 != 1])
# The same, but this time exercising explicitly triggered syntax errors.
# POSIX says the lookahead causing the error should not be discarded.
_AT_CHECK_JAVA_CALC_ERROR([$1], [(!) + (0 0) = 1],
[1.7: syntax error, unexpected number
1.1-1.10: calc: error: 2222 != 1])
_AT_CHECK_JAVA_CALC_ERROR([$1], [(- *) + (0 0) = 1],
[1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
1.8: syntax error, unexpected number
1.1-1.11: calc: error: 2222 != 1])
AT_BISON_OPTION_POPDEFS
AT_CLEANUP
])# _AT_CHECK_JAVA_CALC
# AT_CHECK_JAVA_CALC([BISON-DIRECTIVES])
# --------------------------------------------------------
# Start a testing chunk which compiles `calc' grammar with
# BISON-DIRECTIVES, and performs several tests over the parser.
# Run the test with and without %error-verbose.
m4_define([AT_CHECK_JAVA_CALC],
[_AT_CHECK_JAVA_CALC([$1], [$2])
_AT_CHECK_JAVA_CALC([%error-verbose $1], [$2])
_AT_CHECK_JAVA_CALC([%locations $1], [$2])
_AT_CHECK_JAVA_CALC([%error-verbose %locations $1], [$2])
])# AT_CHECK_JAVA_CALC
# ------------------------ #
# Simple LALR Calculator. #
# ------------------------ #
AT_CHECK_JAVA_CALC([], [[
public static void main (String args[]) throws IOException
{
CalcLexer l = new CalcLexer (System.in);
Calc p = new Calc (l);
p.parse ();
}
]])
AT_CHECK_JAVA_CALC([%lex-param { InputStream is } ], [[
public static void main (String args[]) throws IOException
{
new Calc (System.in).parse ();
}
]])
# -----------------#
# Java Directives. #
# -----------------#
AT_BANNER([Java Parameters.])
# AT_CHECK_JAVA_MINIMAL([DIRECTIVES], [PARSER_ACTION], [POSITION_CLASS])
# ----------------------------------------------------------------------
# Check that a mininal parser with DIRECTIVES compiles in Java.
# Put the Java code in YYParser.java.
m4_define([AT_CHECK_JAVA_MINIMAL],
[
AT_DATA([[YYParser.y]], [
%language "Java"
%locations
%debug
%error-verbose
%token-table
$1
%%
start: "end" {$2};
%%
class m4_default([$3], [Position]) {}
])
AT_BISON_CHECK([[YYParser.y]])
AT_CHECK([[grep '[mb]4_' YYParser.y]], [1], [ignore])
AT_JAVA_COMPILE([[YYParser.java]])
])
# AT_CHECK_JAVA_MINIMAL_W_LEXER([1:DIRECTIVES], [2:LEX_THROWS],
# [3:YYLEX_ACTION], [4:LEXER_BODY], [5:PARSER_ACTION], [6:STYPE],
# [7:POSITION_TYPE], [8:LOCATION_TYPE])
# ---------------------------------------------------------------------
# Check that a mininal parser with DIRECTIVES and a "%code lexer".
# YYLEX is the body of yylex () which throws LEX_THROW.
# compiles in Java.
m4_define([AT_CHECK_JAVA_MINIMAL_W_LEXER],
[AT_CHECK_JAVA_MINIMAL([$1
%code lexer
{
m4_default([$6], [Object]) yylval;
public m4_default([$6], [Object]) getLVal() { return yylval; }
public m4_default([$7], [Position]) getStartPos() { return null; }
public m4_default([$7], [Position]) getEndPos() { return null; }
public void yyerror (m4_default([$8], [Location]) loc, String s)
{
System.err.println (loc + ": " + s);
}
public int yylex ()$2
{
$3
}
$4
}], [$5], [$7])])
# AT_CHECK_JAVA_GREP([LINE], [COUNT=1])
# -------------------------------------
# Check that YYParser.java contains exactly COUNT lines matching ^LINE$
# with grep.
m4_define([AT_CHECK_JAVA_GREP],
[AT_CHECK([grep -c '^$1$' YYParser.java], [], [m4_default([$2], [1])
])
])
# ----------------------------------- #
# Java parser class and package names #
# ----------------------------------- #
AT_SETUP([Java parser class and package names])
AT_CHECK_JAVA_MINIMAL([])
AT_CHECK_JAVA_GREP([[class YYParser]])
AT_CHECK_JAVA_MINIMAL([[%name-prefix "Prefix"]])
AT_CHECK_JAVA_GREP([[class PrefixParser]])
AT_CHECK_JAVA_MINIMAL([[%define parser_class_name "ParserClassName"]])
AT_CHECK_JAVA_GREP([[class ParserClassName]])
AT_CHECK_JAVA_MINIMAL([[%define package "user_java_package"]])
AT_CHECK_JAVA_GREP([[package user_java_package;]])
AT_CLEANUP
# --------------------------- #
# Java parser class modifiers #
# --------------------------- #
AT_SETUP([Java parser class modifiers])
AT_CHECK_JAVA_MINIMAL([[%define abstract]])
AT_CHECK_JAVA_GREP([[abstract class YYParser]])
AT_CHECK_JAVA_MINIMAL([[%define final]])
AT_CHECK_JAVA_GREP([[final class YYParser]])
AT_CHECK_JAVA_MINIMAL([[%define strictfp]])
AT_CHECK_JAVA_GREP([[strictfp class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define abstract
%define strictfp]])
AT_CHECK_JAVA_GREP([[abstract strictfp class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define final
%define strictfp]])
AT_CHECK_JAVA_GREP([[final strictfp class YYParser]])
AT_CHECK_JAVA_MINIMAL([[%define public]])
AT_CHECK_JAVA_GREP([[public class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define public
%define abstract]])
AT_CHECK_JAVA_GREP([[public abstract class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define public
%define final]])
AT_CHECK_JAVA_GREP([[public final class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define public
%define strictfp]])
AT_CHECK_JAVA_GREP([[public strictfp class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define public
%define abstract
%define strictfp]])
AT_CHECK_JAVA_GREP([[public abstract strictfp class YYParser]])
AT_CHECK_JAVA_MINIMAL([[
%define public
%define final
%define strictfp]])
AT_CHECK_JAVA_GREP([[public final strictfp class YYParser]])
AT_CLEANUP
# ---------------------------------------- #
# Java parser class extends and implements #
# ---------------------------------------- #
AT_SETUP([Java parser class extends and implements])
AT_CHECK_JAVA_MINIMAL([[%define extends "Thread"]])
AT_CHECK_JAVA_GREP([[class YYParser extends Thread]])
AT_CHECK_JAVA_MINIMAL([[%define implements "Cloneable"]])
AT_CHECK_JAVA_GREP([[class YYParser implements Cloneable]])
AT_CHECK_JAVA_MINIMAL([[
%define extends "Thread"
%define implements "Cloneable"]])
AT_CHECK_JAVA_GREP([[class YYParser extends Thread implements Cloneable]])
AT_CLEANUP
# -------------------------------- #
# Java %parse-param and %lex-param #
# -------------------------------- #
AT_SETUP([Java %parse-param and %lex-param])
AT_CHECK_JAVA_MINIMAL([])
AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer) {]])
AT_CHECK_JAVA_MINIMAL([[%parse-param {int parse_param1}]])
AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer, *int parse_param1) {]])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param1 = parse_param1;]])
AT_CHECK_JAVA_MINIMAL([[
%parse-param {int parse_param1}
%parse-param {long parse_param2}]])
AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
AT_CHECK_JAVA_GREP([[ *public YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param1 = parse_param1;]])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param2 = parse_param2;]])
AT_CHECK_JAVA_MINIMAL_W_LEXER([], [], [[return EOF;]])
AT_CHECK_JAVA_GREP([[ *public YYParser () {]])
AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer) {]])
AT_CHECK_JAVA_MINIMAL_W_LEXER([[%parse-param {int parse_param1}]],
[], [[return EOF;]])
AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
AT_CHECK_JAVA_GREP([[ *public YYParser (int parse_param1) {]])
AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1) {]])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param1 = parse_param1;]], [2])
AT_CHECK_JAVA_MINIMAL_W_LEXER([[
%parse-param {int parse_param1}
%parse-param {long parse_param2}]],
[], [[return EOF;]])
AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
AT_CHECK_JAVA_GREP([[ *public YYParser (int parse_param1, *long parse_param2) {]])
AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param1 = parse_param1;]], [2])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param2 = parse_param2;]], [2])
AT_CHECK_JAVA_MINIMAL_W_LEXER([[%lex-param {char lex_param1}]],
[], [[return EOF;]], [[YYLexer (char lex_param1) {}]])
AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1) {]])
AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1);]])
AT_CHECK_JAVA_MINIMAL_W_LEXER([[
%lex-param {char lex_param1}
%lex-param {short lex_param2}]],
[], [[return EOF;]], [[YYLexer (char lex_param1, short lex_param2) {}]])
AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1, *short lex_param2) {]])
AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1, *lex_param2);]])
AT_CHECK_JAVA_MINIMAL_W_LEXER([[
%parse-param {int parse_param1}
%parse-param {long parse_param2}
%lex-param {char lex_param1}
%lex-param {short lex_param2}]],
[], [[return EOF;]], [[YYLexer (char lex_param1, short lex_param2) {}]])
AT_CHECK_JAVA_GREP([[ *protected final int parse_param1;]])
AT_CHECK_JAVA_GREP([[ *protected final long parse_param2;]])
AT_CHECK_JAVA_GREP([[ *public YYParser (char lex_param1, *short lex_param2, *int parse_param1, *long parse_param2) {]])
AT_CHECK_JAVA_GREP([[.* = new YYLexer *(lex_param1, *lex_param2);]])
AT_CHECK_JAVA_GREP([[ *protected YYParser (Lexer yylexer, *int parse_param1, *long parse_param2) {]])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param1 = parse_param1;]], [2])
AT_CHECK_JAVA_GREP([[[ ]*this.parse_param2 = parse_param2;]], [2])
AT_CLEANUP
# ------------------------- #
# Java throw specifications #
# ------------------------- #
AT_SETUP([Java throws specifications])
# %define throws - 0 1 2
# %define lex-throws - 0 1 2
# %code lexer 0 1
m4_define([AT_JT_lex_throws_define], [m4_case(AT_JT_lex_throws,
-1, [],
0, [[%define lex_throws ""]],
1, [[%define lex_throws "InterruptedException"]],
2, [[%define lex_throws "InterruptedException, IllegalAccessException"]])])
m4_define([AT_JT_yylex_throws], [m4_case(AT_JT_lex_throws,
-1, [[ throws java.io.IOException]],
0, [],
1, [[ throws InterruptedException]],
2, [[ throws InterruptedException, IllegalAccessException]])])
m4_define([AT_JT_yylex_action], [m4_case(AT_JT_lex_throws,
-1, [[throw new java.io.IOException();]],
0, [[return EOF;]],
1, [[throw new InterruptedException();]],
2, [[throw new IllegalAccessException();]])])
m4_define([AT_JT_throws_define], [m4_case(AT_JT_throws,
-1, [],
0, [[%define throws ""]],
1, [[%define throws "ClassNotFoundException"]],
2, [[%define throws "ClassNotFoundException, InstantiationException"]])])
m4_define([AT_JT_yyaction_throws], [m4_case(AT_JT_throws,
-1, [],
0, [],
1, [[ throws ClassNotFoundException]],
2, [[ throws ClassNotFoundException, InstantiationException]])])
m4_define([AT_JT_parse_throws_2], [m4_case(AT_JT_throws,
-1, [],
0, [],
1, [[, ClassNotFoundException]],
2, [[, ClassNotFoundException, InstantiationException]])])
m4_define([AT_JT_parse_throws],
[m4_if(m4_quote(AT_JT_yylex_throws), [],
[AT_JT_yyaction_throws],
[AT_JT_yylex_throws[]AT_JT_parse_throws_2])])
m4_define([AT_JT_initial_action], [m4_case(AT_JT_throws,
-1, [],
0, [],
1, [[%initial-action {if (true) throw new ClassNotFoundException();}]],
2, [[%initial-action {if (true) throw new InstantiationException();}]])])
m4_define([AT_JT_parse_action], [m4_case(AT_JT_throws,
-1, [],
0, [],
1, [[throw new ClassNotFoundException();]],
2, [[throw new ClassNotFoundException();]])])
m4_for([AT_JT_lexer], 0, 1, 1,
[m4_for([AT_JT_lex_throws], -1, 2, 1,
[m4_for([AT_JT_throws], -1, 2, 1,
[m4_if(AT_JT_lexer, 0,
[AT_CHECK_JAVA_MINIMAL([
AT_JT_throws_define
AT_JT_lex_throws_define
AT_JT_initial_action],
[AT_JT_parse_action])],
[AT_CHECK_JAVA_MINIMAL_W_LEXER([
AT_JT_throws_define
AT_JT_lex_throws_define
AT_JT_initial_action],
[AT_JT_yylex_throws],
[AT_JT_yylex_action],
[],
[AT_JT_parse_action])])
AT_CHECK_JAVA_GREP([[ *int yylex ()]AT_JT_yylex_throws *[;]])
AT_CHECK_JAVA_GREP([[ *private int yyaction ([^)]*)]AT_JT_yyaction_throws[ *]])
AT_CHECK_JAVA_GREP([[ *public boolean parse ()]AT_JT_parse_throws[ *]])
])])])
AT_CLEANUP
# --------------------------------------------- #
# Java stype, position_class and location_class #
# --------------------------------------------- #
AT_SETUP([Java stype, position_class and location_class])
AT_CHECK_JAVA_MINIMAL([[
%define stype "java.awt.Color"
%type<java.awt.Color> start;
%define api.location.type "MyLoc"
%define api.position.type "MyPos"
%code { class MyPos {} }]], [[$$ = $<java.awt.Color>1;]], [[MyPos]])
AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
AT_CHECK_JAVA_MINIMAL_W_LEXER([[
%define stype "java.awt.Color"
%type<java.awt.Color> start;
%define api.location.type "MyLoc"
%define api.position.type "MyPos"
%code { class MyPos {} }]], [], [[return EOF;]], [],
[[$$ = $<java.awt.Color>1;]],
[[java.awt.Color]], [[MyPos]], [[MyLoc]])
AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
AT_CLEANUP
# ----------------------------------------------- #
# Java syntax error handling without error token. #
# ----------------------------------------------- #
AT_SETUP([Java syntax error handling without error token])
AT_DATA([[YYParser.y]], [[%language "Java"
%lex-param { String s }
%code imports {
import java.io.IOException;
}
%code lexer {
String Input;
int Position;
public YYLexer (String s)
{
Input = s;
Position = 0;
}
public void yyerror (String s)
{
System.err.println (s);
}
public Object getLVal ()
{
return null;
}
public int yylex () throws IOException
{
if (Position >= Input.length ())
return EOF;
else
return Input.charAt (Position++);
}
}
%code {
public static void main (String args []) throws IOException
{
YYParser p = new YYParser (args [0]);
p.parse ();
}
}
%%
input:
'a' 'a'
;
]])
AT_BISON_CHECK([[YYParser.y]])
AT_JAVA_COMPILE([[YYParser.java]])
AT_JAVA_PARSER_CHECK([[YYParser aa]], [[0]], [[]], [[]])
AT_JAVA_PARSER_CHECK([[YYParser ab]], [[0]], [[]], [[syntax error
]])
AT_JAVA_PARSER_CHECK([[YYParser ba]], [[0]], [[]], [[syntax error
]])
AT_CLEANUP