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125 lines
4.0 KiB
Java
125 lines
4.0 KiB
Java
/*
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[The "BSD licence"]
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Copyright (c) 2005-2006 Terence Parr
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.antlr.test;
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import junit.framework.TestCase;
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/** General code generation testing; compilation and/or execution.
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* These tests are more about avoiding duplicate var definitions
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* etc... than testing a particular ANTLR feature.
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*/
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public class TestJavaCodeGeneration extends BaseTest {
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public void testDupVarDefForPinchedState() {
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// so->s2 and s0->s3->s1 pinches back to s1
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// LA3_1, s1 state for DFA 3, was defined twice in similar scope
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// just wrapped in curlies and it's cool.
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String grammar =
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"grammar T;\n" +
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"a : (| A | B) X Y\n" +
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" | (| A | B) X Z\n" +
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" ;\n" ;
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boolean found =
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rawGenerateAndBuildRecognizer(
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"T.g", grammar, "TParser", null, false);
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boolean expecting = true; // should be ok
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assertEquals(expecting, found);
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}
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public void testLabeledNotSetsInLexer() {
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// d must be an int
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String grammar =
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"lexer grammar T;\n" +
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"A : d=~('x'|'y') e='0'..'9'\n" +
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" ; \n" ;
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boolean found =
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rawGenerateAndBuildRecognizer(
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"T.g", grammar, null, "T", false);
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boolean expecting = true; // should be ok
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assertEquals(expecting, found);
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}
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public void testLabeledSetsInLexer() {
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// d must be an int
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String grammar =
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"grammar T;\n" +
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"a : A ;\n" +
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"A : d=('x'|'y') {System.out.println((char)$d);}\n" +
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" ; \n" ;
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String found = execParser("T.g", grammar, "TParser", "TLexer",
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"a", "x", false);
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assertEquals("x\n", found);
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}
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public void testLabeledRangeInLexer() {
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// d must be an int
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String grammar =
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"grammar T;\n" +
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"a : A;\n" +
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"A : d='a'..'z' {System.out.println((char)$d);} \n" +
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" ; \n" ;
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String found = execParser("T.g", grammar, "TParser", "TLexer",
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"a", "x", false);
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assertEquals("x\n", found);
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}
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public void testLabeledWildcardInLexer() {
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// d must be an int
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String grammar =
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"grammar T;\n" +
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"a : A;\n" +
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"A : d=. {System.out.println((char)$d);}\n" +
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" ; \n" ;
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String found = execParser("T.g", grammar, "TParser", "TLexer",
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"a", "x", false);
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assertEquals("x\n", found);
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}
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public void testSynpredWithPlusLoop() {
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String grammar =
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"grammar T; \n" +
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"a : (('x'+)=> 'x'+)?;\n";
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boolean found =
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rawGenerateAndBuildRecognizer(
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"T.g", grammar, "TParser", "TLexer", false);
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boolean expecting = true; // should be ok
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assertEquals(expecting, found);
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}
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public void testDoubleQuoteEscape() {
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String grammar =
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"lexer grammar T; \n" +
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"A : '\\\\\"';\n"; // this is A : '\\"';
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boolean found =
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rawGenerateAndBuildRecognizer(
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"T.g", grammar, null, "TLexer", false);
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boolean expecting = true; // should be ok
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assertEquals(expecting, found);
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}
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}
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