# Java tests for simple calculator. -*- Autotest -*-
-# Copyright (C) 2007 Free Software Foundation, Inc.
+# 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
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"
| exp '=' exp
{
if ($1.intValue () != $3.intValue ())
- yyerror ("calc: error: " + $1 + " != " + $3);
+ yyerror (]AT_LOCATION_IF([[@$,]])[ "calc: error: " + $1 + " != " + $3);
}
| exp '+' exp { $$ = new Integer ($1.intValue () + $3.intValue ()); }
| exp '-' exp { $$ = new Integer ($1.intValue () - $3.intValue ()); }
}
AT_LOCATION_IF([[
- Position yystartpos;
- Position yyendpos = new Position (1);
+ Position yypos = new Position (1, 0);
public Position getStartPos() {
- return yystartpos;
+ return yypos;
}
public Position getEndPos() {
- return yyendpos;
- }
-
- public void yyerror (Calc.Location l, String s)
- {
- if (l == null)
- System.err.println (s);
- else
- System.err.println (l.begin + ": " + s);
- }
-]], [[
- public void yyerror (String s)
- {
- System.err.println (s);
+ return yypos;
}
]])[
+ ]AT_YYERROR_DEFINE[
Integer yylval;
public int yylex () throws IOException {
int ttype = st.nextToken ();
- ]AT_LOCATION_IF([[yystartpos = yyendpos;]])[
+ ]AT_LOCATION_IF([[yypos = new Position (yypos.lineno (),
+ yypos.token () + 1);]])[
if (ttype == st.TT_EOF)
return Calc.EOF;
else if (ttype == st.TT_EOL)
{
- ]AT_LOCATION_IF([[yyendpos = new Position (yyendpos.lineno () + 1);]])[
+ ]AT_LOCATION_IF([[yypos = new Position (yypos.lineno () + 1, 0);]])[
return (int) '\n';
}
[
class Position {
public int line;
+ public int token;
public Position ()
{
line = 0;
+ token = 0;
}
- public Position (int l)
+ public Position (int l, int t)
{
line = l;
- }
-
- public long getHashCode ()
- {
- return line;
+ token = t;
}
public boolean equals (Position l)
{
- return l.line == line;
+ return l.line == line && l.token == token;
}
public String toString ()
{
- return Integer.toString (line);
+ return Integer.toString (line) + "." + Integer.toString(token);
}
public int lineno ()
{
return line;
}
+
+ public int token ()
+ {
+ return token;
+ }
}
]])
+AT_BISON_OPTION_POPDEFS
])# _AT_DATA_JAVA_CALC_Y
# AT_DATA_CALC_Y([BISON-OPTIONS])
-# -------------------------------------------------
+# -------------------------------
# Produce `calc.y'.
m4_define([AT_DATA_JAVA_CALC_Y],
[_AT_DATA_JAVA_CALC_Y($[1], $[2], $[3], [$1])
])
-
-# AT_JAVA_COMPILE(SOURCE)
-# -----------------------
-# Compile SOURCES into Java class files. Skip the test if java or javac is
-# not installed.
-m4_define([AT_JAVA_COMPILE],
-[AT_CHECK([test -n "$CONF_JAVA" || exit 77
-test -n "$CONF_JAVAC" || exit 77])
-AT_CHECK([$SHELL ../../../javacomp.sh $1],
- 0, [ignore], [ignore])])
-
-
-# AT_JAVA_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR, [PRE])
-# -----------------------------------------------------------------
-m4_define([AT_JAVA_PARSER_CHECK],
-[AT_CHECK([$5 $SHELL ../../../javaexec.sh $1], [$2], [$3], [$4])])
-
-
# _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,
# Some syntax errors.
_AT_CHECK_JAVA_CALC_ERROR([$1], [0 0],
- [1: syntax error, unexpected number])
+ [1.2: syntax error, unexpected number])
_AT_CHECK_JAVA_CALC_ERROR([$1], [1//2],
- [1: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
+ [1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
_AT_CHECK_JAVA_CALC_ERROR([$1], [error],
- [1: syntax error, unexpected $undefined])
+ [1.1: syntax error, unexpected $undefined])
_AT_CHECK_JAVA_CALC_ERROR([$1], [1 = 2 = 3],
- [1: syntax error, unexpected '='])
+ [1.4: syntax error, unexpected '='])
_AT_CHECK_JAVA_CALC_ERROR([$1], [
+1],
- [2: syntax error, unexpected '+'])
+ [2.1: syntax error, unexpected '+'])
# Exercise error messages with EOF: work on an empty file.
_AT_CHECK_JAVA_CALC_ERROR([$1], [/dev/null],
- [1: syntax error, unexpected end of input])
+ [1.1: syntax error, unexpected end of input])
# Exercise the error token: without it, we die at the first error,
# hence be sure to
# 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],
+_AT_CHECK_JAVA_CALC_ERROR([$1],
[() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],
-[1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-calc: error: 4444 != 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: syntax error, unexpected number
-calc: error: 2222 != 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: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-1: syntax error, unexpected number
-calc: error: 2222 != 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
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 location_type "MyLoc"
+%define position_type "MyPos"
+%code { class MyPos {} }]], [[$$ = $<java.awt.Color>1;]], [[MyPos]])
+AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
+AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Position']], [1], [ignore])
+AT_CHECK([[$EGREP -v ' */?\*' YYParser.java | grep 'Location']], [1], [ignore])
+
+AT_CHECK_JAVA_MINIMAL_W_LEXER([[
+%define stype "java.awt.Color"
+%type<java.awt.Color> start;
+%define location_type "MyLoc"
+%define position_type "MyPos"
+%code { class MyPos {} }]], [], [[return EOF;]], [],
+[[$$ = $<java.awt.Color>1;]],
+[[java.awt.Color]], [[MyPos]], [[MyLoc]])
+AT_CHECK([[grep 'java.awt.Color' YYParser.java]], [0], [ignore])
+AT_CHECK([[$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
projects / bison.git / blobdiff