fix tail call return value processing
This commit is contained in:
James Roseborough
@@ -735,8 +735,8 @@ public class LuaState extends Lua {
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// adjustTop only for case when call was completed
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// adjustTop only for case when call was completed
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// and number of args > 0. If call completed but
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// and number of args > 0. If call completed but
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// c == 0, leave top to point to end of results
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// c == 0, leave top to point to end of results
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if (this.nresults >= 0)
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if (ci.nresults >= 0)
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luaV_adjusttop(base + nresults);
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luaV_adjusttop(base + ci.nresults);
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// force restore of base, etc.
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// force restore of base, etc.
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return;
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return;
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@@ -1,4 +1,5 @@
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package org.luaj.vm;
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package org.luaj.vm;
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import java.io.ByteArrayOutputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStream;
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@@ -10,328 +11,335 @@ import org.luaj.TestPlatform;
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import org.luaj.compiler.LuaC;
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import org.luaj.compiler.LuaC;
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import org.luaj.lib.BaseLib;
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import org.luaj.lib.BaseLib;
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public class LuaJTest extends TestCase {
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public class LuaJTest extends TestCase {
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protected void setUp() throws Exception {
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protected void setUp() throws Exception {
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super.setUp();
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super.setUp();
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Platform.setInstance(new TestPlatform());
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Platform.setInstance(new TestPlatform());
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}
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}
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public void testTest1() throws IOException, InterruptedException {
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public void testTest1() throws IOException, InterruptedException {
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runTest( "test1" );
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runTest("test1");
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}
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}
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public void testTest2() throws IOException, InterruptedException {
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public void testTest2() throws IOException, InterruptedException {
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runTest( "test2" );
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runTest("test2");
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}
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}
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public void testTest3() throws IOException, InterruptedException {
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public void testTest3() throws IOException, InterruptedException {
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runTest( "test3" );
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runTest("test3");
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}
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}
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public void testTest4() throws IOException, InterruptedException {
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public void testTest4() throws IOException, InterruptedException {
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runTest( "test4" );
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runTest("test4");
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}
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}
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public void testTest5() throws IOException, InterruptedException {
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public void testTest5() throws IOException, InterruptedException {
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runTest( "test5" );
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runTest("test5");
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}
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}
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public void testTest6() throws IOException, InterruptedException {
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public void testTest6() throws IOException, InterruptedException {
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runTest( "test6" );
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runTest("test6");
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}
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}
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public void testTest7() throws IOException, InterruptedException {
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public void testTest7() throws IOException, InterruptedException {
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runTest( "test7" );
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runTest("test7");
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}
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}
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public void testTest8() throws IOException, InterruptedException {
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public void testTest8() throws IOException, InterruptedException {
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runTest( "test8" );
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runTest("test8");
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}
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}
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public void testArgtypes() throws IOException, InterruptedException {
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public void testArgtypes() throws IOException, InterruptedException {
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runTest( "argtypes" );
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runTest("argtypes");
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}
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}
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public void testAutoload() throws IOException, InterruptedException {
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public void testAutoload() throws IOException, InterruptedException {
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runTest( "autoload" );
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runTest("autoload");
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}
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}
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public void testBaseLib() throws IOException, InterruptedException {
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public void testBaseLib() throws IOException, InterruptedException {
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runTest( "baselib" );
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runTest("baselib");
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}
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}
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public void testBoolean() throws IOException, InterruptedException {
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runTest( "boolean" );
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}
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public void testCalls() throws IOException, InterruptedException {
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public void testBoolean() throws IOException, InterruptedException {
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runTest( "calls" );
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runTest("boolean");
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}
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}
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public void testCoercions() throws IOException, InterruptedException {
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public void testCalls() throws IOException, InterruptedException {
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runTest( "coercions" );
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runTest("calls");
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}
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}
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public void testCoroutines() throws IOException, InterruptedException {
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runTest( "coroutines" );
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}
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public void testCompare() throws IOException, InterruptedException {
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runTest( "compare" );
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}
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public void testErrors() throws IOException, InterruptedException {
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public void testCoercions() throws IOException, InterruptedException {
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runTest( "errors" );
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runTest("coercions");
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}
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}
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public void testHugeTable() throws IOException, InterruptedException {
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public void testCoroutines() throws IOException, InterruptedException {
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runTest( "hugetable" );
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runTest("coroutines");
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}
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}
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public void testLoops() throws IOException, InterruptedException {
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public void testCompare() throws IOException, InterruptedException {
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runTest( "loops" );
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runTest("compare");
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}
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}
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public void testManyLocals() throws IOException, InterruptedException {
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runTest( "manylocals" );
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}
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public void testErrors() throws IOException, InterruptedException {
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runTest("errors");
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}
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public void testMathLib() throws IOException, InterruptedException {
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public void testHugeTable() throws IOException, InterruptedException {
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runTest( "mathlib" );
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runTest("hugetable");
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}
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}
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public void testMetatables() throws IOException, InterruptedException {
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public void testLoops() throws IOException, InterruptedException {
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runTest( "metatables" );
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runTest("loops");
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}
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}
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public void testModule() throws IOException, InterruptedException {
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public void testManyLocals() throws IOException, InterruptedException {
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runTest( "module" );
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runTest("manylocals");
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}
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}
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public void testNext() throws IOException, InterruptedException {
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public void testMathLib() throws IOException, InterruptedException {
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runTest( "next" );
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runTest("mathlib");
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}
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}
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public void testPcalls() throws IOException, InterruptedException {
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public void testMetatables() throws IOException, InterruptedException {
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runTest( "pcalls" );
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runTest("metatables");
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}
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}
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public void testRequire() throws IOException, InterruptedException {
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runTest( "require" );
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}
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public void testSelect() throws IOException, InterruptedException {
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runTest( "select" );
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}
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public void testSetfenv() throws IOException, InterruptedException {
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public void testModule() throws IOException, InterruptedException {
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runTest( "setfenv" );
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runTest("module");
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}
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}
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public void testSetlist() throws IOException, InterruptedException {
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public void testNext() throws IOException, InterruptedException {
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runTest( "setlist" );
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runTest("next");
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}
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}
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public void testSimpleMetatables() throws IOException, InterruptedException {
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runTest( "simplemetatables" );
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}
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public void testStack() throws IOException, InterruptedException {
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runTest( "stack" );
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}
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public void testStrLib() throws IOException, InterruptedException {
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runTest( "strlib" );
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}
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public void testSort() throws IOException, InterruptedException {
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runTest( "sort" );
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}
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public void testTable() throws IOException, InterruptedException {
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public void testPcalls() throws IOException, InterruptedException {
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runTest( "table" );
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runTest("pcalls");
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}
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}
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public void testType() throws IOException, InterruptedException {
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public void testRequire() throws IOException, InterruptedException {
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runTest( "type" );
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runTest("require");
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}
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}
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public void testUpvalues() throws IOException, InterruptedException {
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runTest( "upvalues" );
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}
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public void testUpvalues2() throws IOException, InterruptedException {
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runTest( "upvalues2" );
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}
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public void testUpvalues3() throws IOException, InterruptedException {
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runTest( "upvalues3" );
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}
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public void testWeakTable() throws IOException, InterruptedException {
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runTest( "weaktable" );
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}
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//*/
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public void testSelect() throws IOException, InterruptedException {
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private void runTest( String testName ) throws IOException, InterruptedException {
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runTest("select");
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}
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// new lua state
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public void testSetfenv() throws IOException, InterruptedException {
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LuaState state = Platform.newLuaState();
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runTest("setfenv");
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}
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// install the compiler
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LuaC.install();
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public void testSetlist() throws IOException, InterruptedException {
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runTest("setlist");
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// load the file
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}
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LPrototype p = loadScriptResource( state, testName );
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p.source = LString.valueOf("stdin");
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public void testSimpleMetatables() throws IOException, InterruptedException {
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runTest("simplemetatables");
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// Replace System.out with a ByteArrayOutputStream
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}
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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BaseLib.redirectOutput( outputStream );
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public void testStack() throws IOException, InterruptedException {
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try {
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runTest("stack");
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// create closure and execute
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}
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LClosure c = p.newClosure( state._G );
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state.pushlvalue(c);
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public void testStrLib() throws IOException, InterruptedException {
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state.call(0,0);
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runTest("strlib");
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}
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final String actualOutput = new String( outputStream.toByteArray() );
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final String expectedOutput = getExpectedOutput( testName );
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public void testSort() throws IOException, InterruptedException {
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runTest("sort");
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assertEquals( expectedOutput, actualOutput );
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}
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} finally {
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BaseLib.restoreStandardOutput();
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public void testTable() throws IOException, InterruptedException {
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outputStream.close();
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runTest("table");
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}
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}
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}
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public void testTailcall() throws IOException, InterruptedException {
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protected LPrototype loadScriptResource( LuaState state, String name ) throws IOException {
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runTest("tailcall");
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InputStream script = getClass().getResourceAsStream( "/"+name+".luac" );
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}
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if ( script == null ) {
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script = getClass().getResourceAsStream( "/"+name+".lua" );
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public void testType() throws IOException, InterruptedException {
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if ( script == null ) {
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runTest("type");
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fail( "Could not load script for test case: "+name );
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}
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}
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}
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public void testUpvalues() throws IOException, InterruptedException {
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runTest("upvalues");
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try {
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}
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// Use "stdin" instead of resource name so that output matches
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// standard Lua.
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public void testUpvalues2() throws IOException, InterruptedException {
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return LoadState.undump(state, script, "stdin");
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runTest("upvalues2");
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} finally {
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}
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script.close();
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}
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public void testUpvalues3() throws IOException, InterruptedException {
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}
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runTest("upvalues3");
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}
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private String getExpectedOutput( final String testName ) throws IOException, InterruptedException {
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String expectedOutputName = "/" + testName + "-expected.out";
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public void testWeakTable() throws IOException, InterruptedException {
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InputStream is = getClass().getResourceAsStream( expectedOutputName );
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runTest("weaktable");
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if ( is != null ) {
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}
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try {
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return readString( is );
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// */
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} finally {
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private void runTest(String testName) throws IOException,
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is.close();
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InterruptedException {
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}
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} else {
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// new lua state
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InputStream script;
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LuaState state = Platform.newLuaState();
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// script = getClass().getResourceAsStream( "/" + testName + ".luac" );
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// if ( script == null ) {
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// install the compiler
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script = getClass().getResourceAsStream( "/" + testName + ".lua" );
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LuaC.install();
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if ( script == null ) {
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fail( "Could not find script for test case: "+testName );
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// load the file
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}
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LPrototype p = loadScriptResource(state, testName);
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// }
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p.source = LString.valueOf("stdin");
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try {
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return collectProcessOutput( new String[] { "lua", "-" }, script );
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// Replace System.out with a ByteArrayOutputStream
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} finally {
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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script.close();
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BaseLib.redirectOutput(outputStream);
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}
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try {
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}
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// create closure and execute
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}
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LClosure c = p.newClosure(state._G);
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state.pushlvalue(c);
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private String collectProcessOutput( String[] cmd, final InputStream input ) throws IOException, InterruptedException {
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state.call(0, 0);
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Runtime r = Runtime.getRuntime();
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final ByteArrayOutputStream baos = new ByteArrayOutputStream();
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final String actualOutput = new String(outputStream.toByteArray());
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final Process p = r.exec( cmd );
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final String expectedOutput = getExpectedOutput(testName);
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try {
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// start a thread to write the given input to the subprocess.
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assertEquals(expectedOutput, actualOutput);
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Thread inputCopier = (new Thread() {
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} finally {
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public void run() {
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BaseLib.restoreStandardOutput();
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try {
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outputStream.close();
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OutputStream processStdIn = p.getOutputStream();
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}
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try {
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}
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copy( input, processStdIn );
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} finally {
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protected LPrototype loadScriptResource(LuaState state, String name)
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processStdIn.close();
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throws IOException {
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}
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InputStream script = getClass().getResourceAsStream(
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} catch ( IOException e ) {
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"/" + name + ".luac");
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e.printStackTrace();
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if (script == null) {
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}
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script = getClass().getResourceAsStream("/" + name + ".lua");
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}
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if (script == null) {
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});
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fail("Could not load script for test case: " + name);
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inputCopier.start();
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}
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}
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// start another thread to read output from the subprocess.
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Thread outputCopier = (new Thread() {
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try {
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public void run() {
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// Use "stdin" instead of resource name so that output matches
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try {
|
// standard Lua.
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InputStream processStdOut = p.getInputStream();
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return LoadState.undump(state, script, "stdin");
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try {
|
} finally {
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copy( processStdOut, baos );
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script.close();
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} finally {
|
}
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processStdOut.close();
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}
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}
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} catch ( IOException ioe ) {
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private String getExpectedOutput(final String testName) throws IOException,
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ioe.printStackTrace();
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InterruptedException {
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||||||
}
|
String expectedOutputName = "/" + testName + "-expected.out";
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}
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InputStream is = getClass().getResourceAsStream(expectedOutputName);
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||||||
});
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if (is != null) {
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outputCopier.start();
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try {
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return readString(is);
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// start another thread to read output from the subprocess.
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} finally {
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Thread errorCopier = (new Thread() {
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is.close();
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public void run() {
|
}
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try {
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} else {
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InputStream processError = p.getErrorStream();
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InputStream script;
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try {
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// script = getClass().getResourceAsStream( "/" + testName + ".luac"
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copy( processError, System.err );
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// );
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} finally {
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// if ( script == null ) {
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processError.close();
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script = getClass().getResourceAsStream("/" + testName + ".lua");
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}
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if (script == null) {
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} catch ( IOException ioe ) {
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fail("Could not find script for test case: " + testName);
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ioe.printStackTrace();
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}
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}
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// }
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}
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try {
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});
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return collectProcessOutput(new String[] { "lua", "-" }, script);
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errorCopier.start();
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} finally {
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||||||
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script.close();
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p.waitFor();
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}
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||||||
inputCopier.join();
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}
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outputCopier.join();
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}
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||||||
errorCopier.join();
|
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private String collectProcessOutput(String[] cmd, final InputStream input)
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||||||
return new String( baos.toByteArray() );
|
throws IOException, InterruptedException {
|
||||||
|
Runtime r = Runtime.getRuntime();
|
||||||
} finally {
|
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
||||||
p.destroy();
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final Process p = r.exec(cmd);
|
||||||
}
|
try {
|
||||||
}
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// start a thread to write the given input to the subprocess.
|
||||||
|
Thread inputCopier = (new Thread() {
|
||||||
private String readString( InputStream is ) throws IOException {
|
public void run() {
|
||||||
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
try {
|
||||||
copy( is, baos );
|
OutputStream processStdIn = p.getOutputStream();
|
||||||
return new String( baos.toByteArray() );
|
try {
|
||||||
}
|
copy(input, processStdIn);
|
||||||
|
} finally {
|
||||||
private void copy( InputStream is, OutputStream os ) throws IOException {
|
processStdIn.close();
|
||||||
byte[] buf = new byte[ 1024 ];
|
}
|
||||||
int r;
|
} catch (IOException e) {
|
||||||
while ( ( r = is.read( buf ) ) >= 0 ) {
|
e.printStackTrace();
|
||||||
os.write( buf, 0, r );
|
}
|
||||||
}
|
}
|
||||||
}
|
});
|
||||||
|
inputCopier.start();
|
||||||
|
|
||||||
|
// start another thread to read output from the subprocess.
|
||||||
|
Thread outputCopier = (new Thread() {
|
||||||
|
public void run() {
|
||||||
|
try {
|
||||||
|
InputStream processStdOut = p.getInputStream();
|
||||||
|
try {
|
||||||
|
copy(processStdOut, baos);
|
||||||
|
} finally {
|
||||||
|
processStdOut.close();
|
||||||
|
}
|
||||||
|
} catch (IOException ioe) {
|
||||||
|
ioe.printStackTrace();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
outputCopier.start();
|
||||||
|
|
||||||
|
// start another thread to read output from the subprocess.
|
||||||
|
Thread errorCopier = (new Thread() {
|
||||||
|
public void run() {
|
||||||
|
try {
|
||||||
|
InputStream processError = p.getErrorStream();
|
||||||
|
try {
|
||||||
|
copy(processError, System.err);
|
||||||
|
} finally {
|
||||||
|
processError.close();
|
||||||
|
}
|
||||||
|
} catch (IOException ioe) {
|
||||||
|
ioe.printStackTrace();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
errorCopier.start();
|
||||||
|
|
||||||
|
p.waitFor();
|
||||||
|
inputCopier.join();
|
||||||
|
outputCopier.join();
|
||||||
|
errorCopier.join();
|
||||||
|
|
||||||
|
return new String(baos.toByteArray());
|
||||||
|
|
||||||
|
} finally {
|
||||||
|
p.destroy();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private String readString(InputStream is) throws IOException {
|
||||||
|
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
||||||
|
copy(is, baos);
|
||||||
|
return new String(baos.toByteArray());
|
||||||
|
}
|
||||||
|
|
||||||
|
private void copy(InputStream is, OutputStream os) throws IOException {
|
||||||
|
byte[] buf = new byte[1024];
|
||||||
|
int r;
|
||||||
|
while ((r = is.read(buf)) >= 0) {
|
||||||
|
os.write(buf, 0, r);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|||||||
62
src/test/res/tailcall.lua
Normal file
62
src/test/res/tailcall.lua
Normal file
@@ -0,0 +1,62 @@
|
|||||||
|
|
||||||
|
function a()
|
||||||
|
return pcall( function() end )
|
||||||
|
end
|
||||||
|
|
||||||
|
function b()
|
||||||
|
return pcall( function() print 'b' end )
|
||||||
|
end
|
||||||
|
|
||||||
|
function c()
|
||||||
|
return pcall( function() return 'c' end )
|
||||||
|
end
|
||||||
|
|
||||||
|
print( pcall( a ) )
|
||||||
|
print( pcall( b ) )
|
||||||
|
print( pcall( c ) )
|
||||||
|
|
||||||
|
local function sum(...)
|
||||||
|
local s = 0
|
||||||
|
for i,v in ipairs({...}) do
|
||||||
|
s = s + v
|
||||||
|
end
|
||||||
|
return s
|
||||||
|
end
|
||||||
|
|
||||||
|
local function f1(n,a,b,c)
|
||||||
|
local a = a or 0
|
||||||
|
local b = b or 0
|
||||||
|
local c = c or 0
|
||||||
|
if n <= 0 then
|
||||||
|
return a,a+b,a+b+c
|
||||||
|
end
|
||||||
|
return f1(n-1,a,a+b,a+b+c)
|
||||||
|
end
|
||||||
|
|
||||||
|
local function f2(n,...)
|
||||||
|
if n <= 0 then
|
||||||
|
return sum(...)
|
||||||
|
end
|
||||||
|
return f2(n-1,n,...)
|
||||||
|
end
|
||||||
|
|
||||||
|
local function f3(n,...)
|
||||||
|
if n <= 0 then
|
||||||
|
return sum(...)
|
||||||
|
end
|
||||||
|
return pcall(f3,n-1,n,...)
|
||||||
|
end
|
||||||
|
|
||||||
|
local function all(f)
|
||||||
|
for n=0,3 do
|
||||||
|
t = {}
|
||||||
|
for m=1,5 do
|
||||||
|
print( pcall( f, n, unpack(t)) )
|
||||||
|
t[m] = m
|
||||||
|
end
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
||||||
|
all(f1)
|
||||||
|
all(f2)
|
||||||
|
all(f3)
|
||||||
@@ -1 +1 @@
|
|||||||
version: 0.38
|
version: 0.39
|
||||||
|
|||||||
Reference in New Issue
Block a user