[13 - String Templates] Add "CC-Praxis-Antlr X Uebersetzer-Leer"

CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/test/OptimizerTest.java

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+/* **********************************************
+ * Duale Hochschule Baden-Württemberg Karlsruhe
+ * Prof. Dr. Jörn Eisenbiegler
+ * 
+ * Vorlesung Übersetzerbau
+ * Praxis ANTLR-Parser für X
+ * - Testfall-Utility für Parser
+ * 
+ * **********************************************
+ */
+
+
+package de.dhbw.compiler.antlrxcompiler.test;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.ByteArrayInputStream;
+
+import org.antlr.runtime.ANTLRInputStream;
+import org.antlr.runtime.CommonTokenStream;
+import org.antlr.runtime.tree.CommonTreeNodeStream;
+
+import de.dhbw.compiler.antlrxcompiler.XLexer;
+import de.dhbw.compiler.antlrxcompiler.XOptimizer;
+import de.dhbw.compiler.antlrxcompiler.XParser;
+import de.dhbw.compiler.antlrxcompiler.XTree;
+import de.dhbw.compiler.antlrxcompiler.XTreeAdaptor;
+import de.dhbw.compiler.antlrxcompiler.XTypeCheck;
+
+public abstract class OptimizerTest {
+
+	protected void testTypeCheckTree(String in, String expected) throws Exception {
+		XTreeAdaptor xTreeAdaptor = new XTreeAdaptor(); 		
+		ANTLRInputStream input = new ANTLRInputStream(new ByteArrayInputStream(in.getBytes())); 
+		XLexer scanner = new XLexer(input);
+		CommonTokenStream tokens = new CommonTokenStream(scanner);
+		XParser			parser	= new XParser(tokens);
+		parser.setTreeAdaptor(xTreeAdaptor);
+		XTree out = parser.program().getTree();
+		XOptimizer optimizer = new XOptimizer(new CommonTreeNodeStream(xTreeAdaptor, out));
+		optimizer.setTreeAdaptor(xTreeAdaptor);
+		out = (XTree)optimizer.downup(out,true);
+		
+		if (out==null) {
+			assertEquals(expected, out);
+		} else {
+			assertEquals(expected, out.toStringTree());
+		}
+	}
+	
+}