First Tests for Parser, pls check

src/main/java/Main.java

@@ -49,17 +49,16 @@ public class Main {
         /* ------------------------- Scanner -> tokens ------------------------- */
         SimpleJavaLexer lexer = new SimpleJavaLexer(inputCharStream);
         CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        tokenStream.fill();
 
         // Printing the tokens
-        tokenStream.fill();
+        System.out.println("-------------------- Scanner -> Tokens --------------------");
         List<Token> tokens = tokenStream.getTokens();
-        System.out.println("-------------------- Scanner -> tokens --------------------");
         for (Token token : tokens) {
             String tokenType =
                     SimpleJavaLexer.VOCABULARY.getSymbolicName(token.getType());
             String tokenText = token.getText();
-            // System.out.println("Token Type: " + tokenType + ", Token Text: " +
+            // System.out.println("Token Type: " + tokenType + ", Token Text: " + tokenText);
-            // tokenText);
             System.out.println(tokenType + " " + tokenText);
         }
         System.out.println();
@@ -70,8 +69,8 @@ public class Main {
 
         // Printing the parse tree
         System.out.println("-------------------- Parser -> Parsetree  --------------------");
-        System.out.println(parseTree.toStringTree(parser));
+        System.out.println(parseTree.toStringTree(parser)); //one line representation
-        printTree(parseTree, parser, 0);
+      //  printTree(parseTree, parser, 0);
         System.out.println();
 
         /*------------------------- AST builder -> AST -------------------------*/

src/test/Makefile

@@ -14,11 +14,11 @@ compile-raupenpiler:
 test: test-javac test-raupenpiler
 
 test-javac:
-	compile-javac
+	#compile-javac
-	java -cp .\resources\output\javac CompilerInput
+	#java -cp .\resources\output\javac CompilerInput
 
 test-raupenpiler:
-	java -cp .\resources\output\raupenpiler CompilerInput
+	#java -cp .\resources\output\raupenpiler CompilerInput
 
 clean:
 	rm -f ./resources/output/javac/*.class

src/test/TestSpecs.md

@@ -18,6 +18,8 @@
 
 ## Scanner Output
 
+CommonTokenStream
+
 ### Beispiel 1: Empty Class
 
 Token Type; Token Text
@@ -28,26 +30,20 @@ Type gibts nur bei Terminalen, Text bei allen
     Bsp von Ihm mal:
     [TokPublic,TokClass,TokIdentifier "Name",TokLeftBrace,TokRightBrace]
 
-### Beispiel 2: Filled Class
-
-    [TokClass,TokIdentifier "javaFileInput.Example",TokLeftBrace]
-    [TokIf,TokLeftParen,TokIdentifier "x",TokLessThan,TokNumber 5,TokRightParen,TokLeftBrace]
-    [TokFor,TokLeftParen,TokIdentifier "int",TokIdentifier "i",TokAssign,TokNumber 0,TokSemicolon,TokIdentifier "i",TokLessThan,TokNumber 10,TokSemicolon,TokIdentifier "i",TokPlus,TokPlus,TokRightParen,TokLeftBrace]
-    [TokWhile,TokLeftParen,TokIdentifier "true",TokRightParen,TokLeftBrace]
-    [TokIdentifier "x",TokAssign,TokNumber 5,TokSemicolon]
-    [TokRightBrace]
-
 # Parser
 
 ## Parser Input
 
+CommonTokenStream
 (Scanner Output)
 
 ## Parser Output (AST)
 
-### Beispiel 1: Empty Class
+(program (classDeclaration (accessType public) class Name { }))
 
-### Beispiel 2: Filled Class
+ParseTree
+
+### Beispiel 1: Empty Class
 
 # Semantische Analyse / Typcheck
 
@@ -59,8 +55,6 @@ Type gibts nur bei Terminalen, Text bei allen
 
 ### Beispiel 1: Empty Class
 
-### Beispiel 2: Filled Class
-
 # Bytecodegenerierung
 
 ## Bytecodegenerierung Input
@@ -76,8 +70,6 @@ Compiled Classfile
     public class javaFileInput.Example {
     }
 
-### Beispiel 2: Filled Class
-
 ## E2E Tests:
 
 - Testdatei mit Main ausführen/kompilieren
@@ -85,11 +77,12 @@ Compiled Classfile
 - -> Dateien mit javap vergleichen
 
 wenn beides erfolgreich
+
 - Ergebnis vom eigenen Compiler mithilfe von TestCompilerOutput ausführen
 - (Ergebnis von javac mithilfe von TestCompilerOutput ausführen)
 
- 
 ### Andis Tipps:
+
 - cp mitgeben
 - makefile
 - java -jar pfadtocompiler.jar EmptyClass.java

src/test/java/FailureTest.java

@@ -15,17 +15,17 @@ import java.util.List;
 
 public class FailureTest {
     private static final List<String> TEST_FILES = Arrays.asList(
-            "src/main/test/resources/failureTests/TestClass1.java",
+            "src/main/test/resources/input/failureTests/TestClass1.java",
-            "src/main/test/resources/failureTests/TestClass2.java",
+            "src/main/test/resources/input/failureTests/TestClass2.java",
-            "src/main/test/resources/failureTests/TestClass3.java",
+            "src/main/test/resources/input/failureTests/TestClass3.java",
-            "src/main/test/resources/failureTests/TestClass4.java",
+            "src/main/test/resources/input/failureTests/TestClass4.java",
-            "src/main/test/resources/failureTests/TestClass5.java",
+            "src/main/test/resources/input/failureTests/TestClass5.java",
-            "src/main/test/resources/failureTests/TestClass6.java",
+            "src/main/test/resources/input/failureTests/TestClass6.java",
-            "src/main/test/resources/failureTests/TestClass7.java",
+            "src/main/test/resources/input/failureTests/TestClass7.java",
-            "src/main/test/resources/failureTests/TestClass8.java",
+            "src/main/test/resources/input/failureTests/TestClass8.java",
-            "src/main/test/resources/failureTests/TestClass9.java",
+            "src/main/test/resources/input/failureTests/TestClass9.java",
-            "src/main/test/resources/failureTests/TestClass10.java",
+            "src/main/test/resources/input/failureTests/TestClass10.java",
-            "src/main/test/resources/failureTests/TestClass11.java"
+            "src/main/test/resources/input/failureTests/TestClass11.java"
     );
 
     /**

src/test/java/parser/ParserTest.java

@@ -1,4 +1,187 @@
 package parser;
 
+import ast.ProgramNode;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.tree.ParseTree;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.nio.file.Paths;
+import java.util.*;
+import java.util.function.BooleanSupplier;
+
 public class ParserTest {
+    @BeforeEach
+    public void init() { // noch nicht benötigt
+        String inputFilePath = "src/main/resources/input/CompilerInput.java";
+        String outputDirectoryPath = "src/main/resources/output";
+    }
+
+    /**
+     * This test method is used to test the scanner functionality of the SimpleJavaLexer.
+     * It creates a CharStream from a string representing a simple Java class declaration,
+     * and uses the SimpleJavaLexer to tokenize this input.
+     * It then compares the actual tokens and their types produced by the lexer to the expected tokens and their types.
+     */
+    @Test
+    public void scannerTest() {
+        // Create a CharStream from a string representing a simple Java class declaration
+        CharStream inputCharStream = CharStreams.fromString("public class Name {}");
+
+        // Use the SimpleJavaLexer to tokenize the input
+        SimpleJavaLexer lexer = new SimpleJavaLexer(inputCharStream);
+        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        tokenStream.fill();
+
+        // Prepare the expected results
+        List<Token> actualTokens = tokenStream.getTokens();
+        List<String> expectedTokens = Arrays.asList("public", "class", "Name", "{", "}", "<EOF>");
+        List<String> expectedTokenTypes = Arrays.asList(null, null, "IDENTIFIER", null, null, "EOF");
+
+        // Compare the actual tokens and their types to the expected tokens and their types
+        assertEquals(expectedTokens.size(), actualTokens.size());
+        for (int i = 0; i < expectedTokens.size(); i++) {
+            assertEquals(expectedTokens.get(i), actualTokens.get(i).getText());
+            assertEquals(expectedTokenTypes.get(i), SimpleJavaLexer.VOCABULARY.getSymbolicName(actualTokens.get(i).getType()));
+        }
+    }
+
+
+    @Test
+    public void parserTest() {
+        // init
+        CharStream inputCharStream = CharStreams.fromString("public class Name {}");
+        SimpleJavaLexer lexer = new SimpleJavaLexer(inputCharStream);
+        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        tokenStream.fill();
+
+
+        /* Parser -> Parsetree */
+        SimpleJavaParser parser = new SimpleJavaParser(tokenStream);
+        ParseTree parseTree = parser.program(); // parse the input
+
+        //Variante 1 (geht)
+        String actualParseTreeAsString = parseTree.toStringTree(parser);
+        String expectedParseTreeAsString = "(program (classDeclaration (accessType public) class Name { }))";
+
+        assertEquals(actualParseTreeAsString, expectedParseTreeAsString);
+
+        //Variante 2 (geht nicht)
+        // - Sollte es gehen und es liegt am Parser? (keine Ahnung)  -> Bitte Fehler (actual und expected) durchlesen
+        Map<String, Object> actualTreeStructure = buildTreeStructure(parseTree, parser);
+        Map<String, Object> expectedTreeStructure = parseStringToTree(expectedParseTreeAsString);
+
+        assertEquals(actualTreeStructure, expectedTreeStructure);
+
+
+    }
+
+    @Test
+    public void astBuilderTest() {
+        // TODO: Implement this test method
+
+
+
+
+        /* AST builder -> AST */
+        ASTBuilder astBuilder = new ASTBuilder();
+        //   ProgramNode abstractSyntaxTree = (ProgramNode) astBuilder.visit(parseTree);
+
+        //String actualASTasString = new ASTBuilder().visit(parseTree).toString();
+
+        // ProgramNode actualAST = new ASTBuilder().visit(parseTree);
+        // ProgramNode expectedAST = new ProgramNode();
+        // expectedAST.add(new ProgramNode.ClassNode("Name", new ProgramNode()));
+    }
+
+
+    // Helpers Variante 2.1
+
+    public static Map<String, Object> buildTreeStructure(ParseTree tree, Parser parser) {
+        return buildTree(tree, parser, 0);
+    }
+
+    private static Map<String, Object> buildTree(ParseTree tree, Parser parser, int indent) {
+        Map<String, Object> node = new HashMap<>();
+
+        if (tree instanceof RuleContext) {
+            int ruleIndex = ((RuleContext) tree).getRuleIndex();
+            String ruleName = parser.getRuleNames()[ruleIndex];
+            node.put("rule", ruleName);
+        } else {
+            node.put("text", tree.getText());
+        }
+
+        List<Map<String, Object>> children = new ArrayList<>();
+        for (int i = 0; i < tree.getChildCount(); i++) {
+            children.add(buildTree(tree.getChild(i), parser, indent + 1));
+        }
+
+        if (!children.isEmpty()) {
+            node.put("children", children);
+        }
+
+        return node;
+    }
+
+    // Helpers Variante 2.2
+
+    public static Map<String, Object> parseStringToTree(String input) {
+        input = input.trim();
+        if (input.startsWith("(") && input.endsWith(")")) {
+            input = input.substring(1, input.length() - 1).trim();
+        }
+        return parse(input);
+    }
+
+    private static Map<String, Object> parse(String input) {
+        Map<String, Object> node = new HashMap<>();
+        StringBuilder currentToken = new StringBuilder();
+        List<Map<String, Object>> children = new ArrayList<>();
+
+        int depth = 0;
+        boolean inToken = false;
+        for (char ch : input.toCharArray()) {
+            if (ch == '(') {
+                if (depth == 0) {
+                    if (currentToken.length() > 0) {
+                        node.put("node", currentToken.toString().trim());
+                        currentToken.setLength(0);
+                    }
+                } else {
+                    currentToken.append(ch);
+                }
+                depth++;
+            } else if (ch == ')') {
+                depth--;
+                if (depth == 0) {
+                    children.add(parse(currentToken.toString().trim()));
+                    currentToken.setLength(0);
+                } else {
+                    currentToken.append(ch);
+                }
+            } else if (Character.isWhitespace(ch) && depth == 0) {
+                if (currentToken.length() > 0) {
+                    node.put("node", currentToken.toString().trim());
+                    currentToken.setLength(0);
+                }
+            } else {
+                currentToken.append(ch);
+            }
+        }
+
+        if (currentToken.length() > 0) {
+            node.put("node", currentToken.toString().trim());
+        }
+
+        if (!children.isEmpty()) {
+            node.put("children", children);
+        }
+
+        return node;
+    }
 }