Adds fixes to make `samples' project to work properly

teavm-classlib/src/main/java/org/teavm/classlib/java/io/TPrintStream.java

@@ -117,7 +117,7 @@ public class TPrintStream extends TFilterOutputStream {
     private void print(char[] s, int begin, int end) {
         CharBuffer src = new CharBuffer(s, begin, end);
         byte[] destBytes = new byte[TMath.max(16, TMath.min(s.length, 1024))];
-        ByteBuffer dest = new ByteBuffer(new byte[TMath.max(16, TMath.min(s.length, 1024))]);
+        ByteBuffer dest = new ByteBuffer(destBytes);
         while (!src.end()) {
             charset.encode(src, dest);
             write(destBytes, 0, dest.position());
@@ -135,13 +135,28 @@ public class TPrintStream extends TFilterOutputStream {
         printSB();
     }
 
+    public void println(int i) {
+        sb.append(i).append('\n');
+        printSB();
+    }
+
+    public void print(long l) {
+        sb.append(l);
+        printSB();
+    }
+
+    public void println(long l) {
+        sb.append(l).append('\n');
+        printSB();
+    }
+
     public void print(TString s) {
-        sb.append(s).append('\n');
+        sb.append(s);
         printSB();
     }
 
     public void println(TString s) {
-        sb.append(s);
+        sb.append(s).append('\n');
         printSB();
     }
 
@@ -152,7 +167,7 @@ public class TPrintStream extends TFilterOutputStream {
     private void printSB() {
         char[] buffer = sb.length() > this.buffer.length ? new char[sb.length()] : this.buffer;
         sb.getChars(0, sb.length(), buffer, 0);
-        print(buffer);
+        print(buffer, 0, sb.length());
         sb.setLength(0);
     }
 }

teavm-classlib/src/test/java/org/teavm/classlib/java/lang/StringBuilderTest.java

@@ -43,6 +43,13 @@ public class StringBuilderTest {
         assertEquals("23", sb.toString());
     }
 
+    @Test
+    public void longAppended2() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(2971215073L);
+        assertEquals("2971215073", sb.toString());
+    }
+
     @Test
     public void negativeLongAppended() {
         StringBuilder sb = new StringBuilder();

teavm-classlib/src/test/java/org/teavm/classlib/java/lang/VMTest.java

@@ -1,6 +1,6 @@
 package org.teavm.classlib.java.lang;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
 import org.junit.Test;
 
 /**
@@ -36,4 +36,11 @@ public class VMTest {
         assertEquals(11997458712L, a / b);
         assertEquals(-11997458712L, a / -b);
     }
+
+    @Test
+    public void longAdditionWorks() {
+        long a = 1134903170;
+        long b = 1836311903;
+        assertEquals(2971215073L, a + b);
+    }
 }

teavm-core/src/main/java/org/teavm/dependency/DependencyChecker.java

@@ -146,7 +146,7 @@ public class DependencyChecker {
         return methodCache.map(methodRef);
     }
 
-    private void initClass(String className) {
+    public void initClass(String className) {
         MethodDescriptor clinitDesc = new MethodDescriptor("<clinit>", ValueType.VOID);
         while (className != null) {
             if (initializedClasses.putIfAbsent(className, clinitDesc) != null) {
@@ -184,8 +184,7 @@ public class DependencyChecker {
         for (int i = 0; i < varCount; ++i) {
             parameterNodes[i] = new DependencyNode(this);
             if (shouldLog) {
-                parameterNodes[i].setTag(method.getOwner().getName() + "#" +
+                parameterNodes[i].setTag(method.getOwner().getName() + "#" + method.getDescriptor() + ":" + i);
-                        method.getName() + method.getDescriptor() + ":" + i);
             }
         }
         DependencyNode resultNode;
@@ -194,8 +193,7 @@ public class DependencyChecker {
         } else {
             resultNode = new DependencyNode(this);
             if (shouldLog) {
-                resultNode.setTag(method.getOwner().getName() + "#" +
+                resultNode.setTag(method.getOwner().getName() + "#" + method.getDescriptor() + ":RESULT");
-                        method.getName() + MethodDescriptor.get(method) + ":RESULT");
             }
         }
         final MethodGraph graph = new MethodGraph(parameterNodes, paramCount, resultNode, this);
@@ -236,6 +234,21 @@ public class DependencyChecker {
 
     private DependencyNode createFieldNode(FieldReference fieldRef) {
         initClass(fieldRef.getClassName());
+        ClassHolder cls = classSource.getClassHolder(fieldRef.getClassName());
+        if (cls == null) {
+            throw new RuntimeException("Class not found: " + fieldRef.getClassName());
+        }
+        FieldHolder field = cls.getField(fieldRef.getFieldName());
+        if (field == null) {
+            while (cls != null) {
+                field = cls.getField(fieldRef.getFieldName());
+                if (field != null) {
+                    return fieldCache.map(new FieldReference(cls.getName(), fieldRef.getFieldName()));
+                }
+                cls = cls.getParent() != null ? classSource.getClassHolder(cls.getParent()) : null;
+            }
+            throw new RuntimeException("Field not found: " + fieldRef);
+        }
         DependencyNode node = new DependencyNode(this);
         if (shouldLog) {
             node.setTag(fieldRef.getClassName() + "#" + fieldRef.getFieldName());

teavm-core/src/main/java/org/teavm/dependency/DependencyGraphBuilder.java

@@ -334,5 +334,10 @@ class DependencyGraphBuilder {
         @Override
         public void visit(EmptyInstruction insn) {
         }
+
+        @Override
+        public void visit(InitClassInstruction insn) {
+            dependencyChecker.initClass(insn.getClassName());
+        }
     };
 }

teavm-core/src/main/java/org/teavm/javascript/JavascriptBuilder.java

@@ -77,7 +77,6 @@ public class JavascriptBuilder {
         builder.setMinified(minifying);
         SourceWriter sourceWriter = builder.build(writer);
         Renderer renderer = new Renderer(sourceWriter, classSource);
-        renderer.renderRuntime();
         dependencyChecker.attachMethodGraph(new MethodReference("java.lang.Class", new MethodDescriptor("createNew",
                 ValueType.object("java.lang.Class"))));
         dependencyChecker.attachMethodGraph(new MethodReference("java.lang.String", new MethodDescriptor("<init>",

teavm-core/src/main/java/org/teavm/javascript/OptimizingVisitor.java

@@ -478,4 +478,9 @@ class OptimizingVisitor implements StatementVisitor, ExprVisitor {
     public void visit(IncrementStatement statement) {
         resultStmt = Statement.increment(statement.getVar(), statement.getAmount());
     }
+
+    @Override
+    public void visit(InitClassStatement statement) {
+        resultStmt = statement;
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/ReadWriteStatsBuilder.java

@@ -191,4 +191,8 @@ class ReadWriteStatsBuilder implements StatementVisitor, ExprVisitor {
         reads[statement.getVar()]++;
         writes[statement.getVar()]++;
     }
+
+    @Override
+    public void visit(InitClassStatement statement) {
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/ReferenceCountingVisitor.java

@@ -100,4 +100,7 @@ class ReferenceCountingVisitor implements StatementVisitor {
     public void visit(IncrementStatement statement) {
     }
 
+    @Override
+    public void visit(InitClassStatement statement) {
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/Renderer.java

@@ -174,7 +174,8 @@ public class Renderer implements ExprVisitor, StatementVisitor {
             writer.ws().append("};").softNewLine();
             writer.appendClass(cls.getName()).append("_$clinit").ws().append("=").ws().append("function()").ws()
                     .append("{").softNewLine().indent();
-            writer.appendClass(cls.getName()).append("_$clinit").ws().append("=").ws().append("null;").newLine();
+            writer.appendClass(cls.getName()).append("_$clinit").ws().append("=").ws()
+                    .append("function(){};").newLine();
             List<String> stubNames = new ArrayList<>();
             for (MethodNode method : cls.getMethods()) {
                 renderBody(method);
@@ -529,6 +530,15 @@ public class Renderer implements ExprVisitor, StatementVisitor {
         }
     }
 
+    @Override
+    public void visit(InitClassStatement statement) {
+        try {
+            writer.appendClass(statement.getClassName()).append("_$clinit();").softNewLine();
+        } catch (IOException e) {
+            throw new RenderingException("IO error occured", e);
+        }
+    }
+
     public String variableName(int index) {
         if (index == 0) {
             return minifying ? "$t" : "$this";

teavm-core/src/main/java/org/teavm/javascript/StatementGenerator.java

@@ -628,4 +628,9 @@ class StatementGenerator implements InstructionVisitor {
     private Expr compare(BinaryOperation op, Variable value) {
         return Expr.binary(op, Expr.var(value.getIndex()), Expr.constant(0));
     }
+
+    @Override
+    public void visit(InitClassInstruction insn) {
+        statements.add(Statement.initClass(insn.getClassName()));
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/UnusedVariableEliminator.java

@@ -196,4 +196,8 @@ class UnusedVariableEliminator implements ExprVisitor, StatementVisitor {
     @Override
     public void visit(StaticClassExpr expr) {
     }
+
+    @Override
+    public void visit(InitClassStatement statement) {
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/ast/InitClassStatement.java

@@ -0,0 +1,22 @@
+package org.teavm.javascript.ast;
+
+/**
+ *
+ * @author Alexey Andreev
+ */
+public class InitClassStatement extends Statement {
+    private String className;
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+
+    @Override
+    public void acceptVisitor(StatementVisitor visitor) {
+        visitor.visit(this);
+    }
+}

teavm-core/src/main/java/org/teavm/javascript/ast/RenamingVisitor.java

@@ -166,4 +166,8 @@ public class RenamingVisitor implements StatementVisitor, ExprVisitor {
     public void visit(IncrementStatement statement) {
         statement.setVar(varNames[statement.getVar()]);
     }
+
+    @Override
+    public void visit(InitClassStatement statement) {
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/ast/Statement.java

@@ -63,4 +63,10 @@ public abstract class Statement {
     public static Statement cond(Expr predicate, Statement consequent) {
         return cond(predicate, consequent, null);
     }
+
+    public static Statement initClass(String className) {
+        InitClassStatement stmt = new InitClassStatement();
+        stmt.setClassName(className);
+        return stmt;
+    }
 }

teavm-core/src/main/java/org/teavm/javascript/ast/StatementVisitor.java

@@ -43,4 +43,6 @@ public interface StatementVisitor {
     void visit(ThrowStatement statement);
 
     void visit(IncrementStatement statement);
+
+    void visit(InitClassStatement statement);
 }

teavm-core/src/main/java/org/teavm/model/instructions/InitClassInstruction.java

@@ -0,0 +1,24 @@
+package org.teavm.model.instructions;
+
+import org.teavm.model.Instruction;
+
+/**
+ *
+ * @author Alexey Andreev
+ */
+public class InitClassInstruction extends Instruction {
+    private String className;
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+
+    @Override
+    public void acceptVisitor(InstructionVisitor visitor) {
+        visitor.visit(this);
+    }
+}

teavm-core/src/main/java/org/teavm/model/instructions/InstructionVisitor.java

@@ -68,4 +68,6 @@ public interface InstructionVisitor {
     void visit(InvokeInstruction insn);
 
     void visit(IsInstanceInstruction insn);
+
+    void visit(InitClassInstruction insn);
 }

teavm-core/src/main/java/org/teavm/model/resource/ClassRefsRenamer.java

@@ -249,4 +249,9 @@ class ClassRefsRenamer implements InstructionVisitor {
     public void visit(IsInstanceInstruction insn) {
         insn.setType(rename(insn.getType()));
     }
+
+    @Override
+    public void visit(InitClassInstruction insn) {
+        insn.setClassName(classNameMapper.map(insn.getClassName()));
+    }
 }

teavm-core/src/main/java/org/teavm/model/util/DefinitionExtractor.java

@@ -177,4 +177,8 @@ public class DefinitionExtractor implements InstructionVisitor {
     public void visit(CloneArrayInstruction insn) {
         definedVariables = new Variable[] { insn.getReceiver() };
     }
+
+    @Override
+    public void visit(InitClassInstruction insn) {
+    }
 }

teavm-core/src/main/java/org/teavm/model/util/InstructionStringifier.java

@@ -331,4 +331,9 @@ public class InstructionStringifier implements InstructionVisitor {
         sb.append("@").append(insn.getReceiver().getIndex()).append("@")
                 .append(insn.getArray().getIndex()).append(".clone()");
     }
+
+    @Override
+    public void visit(InitClassInstruction insn) {
+        sb.append("initclass ").append(insn.getClassName());
+    }
 }

teavm-core/src/main/java/org/teavm/model/util/InstructionTransitionExtractor.java

@@ -179,4 +179,9 @@ public class InstructionTransitionExtractor implements InstructionVisitor {
     public void visit(CloneArrayInstruction insn) {
         targets = null;
     }
+
+    @Override
+    public void visit(InitClassInstruction insn) {
+        targets = null;
+    }
 }

teavm-core/src/main/java/org/teavm/optimization/CommonSubexpressionElimination.java

@@ -358,5 +358,9 @@ public class CommonSubexpressionElimination implements MethodOptimization {
             insn.setValue(program.variableAt(val));
             bind(insn.getReceiver().getIndex(), "@" + val + " :? " + insn.getType());
         }
+
+        @Override
+        public void visit(InitClassInstruction insn) {
+        }
     };
 }

teavm-core/src/main/java/org/teavm/optimization/UnusedVariableElimination.java

@@ -225,5 +225,9 @@ public class UnusedVariableElimination implements MethodOptimization {
         public void visit(IsInstanceInstruction insn) {
             requestUsage(insn.getReceiver());
         }
+
+        @Override
+        public void visit(InitClassInstruction insn) {
+        }
     }
 }

teavm-core/src/main/java/org/teavm/optimization/VariableEscapeAnalyzer.java

@@ -178,5 +178,9 @@ public class VariableEscapeAnalyzer {
         @Override
         public void visit(IsInstanceInstruction insn) {
         }
+
+        @Override
+        public void visit(InitClassInstruction insn) {
+        }
     }
 }

teavm-core/src/main/java/org/teavm/optimization/VariableUsageGraphBuilder.java

@@ -183,5 +183,9 @@ public class VariableUsageGraphBuilder {
         public void visit(IsInstanceInstruction insn) {
             use(insn.getReceiver(), insn.getValue());
         }
+
+        @Override
+        public void visit(InitClassInstruction insn) {
+        }
     }
 }

teavm-core/src/main/java/org/teavm/parsing/Parser.java

@@ -13,12 +13,12 @@ import org.teavm.optimization.UnreachableBasicBlockEliminator;
  * @author Alexey Andreev
  */
 public class Parser {
-    public static MethodHolder parseMethod(MethodNode node) {
+    public static MethodHolder parseMethod(MethodNode node, String className) {
         ValueType[] signature = MethodDescriptor.parseSignature(node.desc);
         MethodHolder method = new MethodHolder(node.name, signature);
         parseModifiers(node.access, method);
         ProgramParser programParser = new ProgramParser();
-        Program program = programParser.parse(node);
+        Program program = programParser.parse(node, className);
         new UnreachableBasicBlockEliminator().optimize(program);
         SSATransformer ssaProducer = new SSATransformer();
         ssaProducer.transformToSSA(program, method.getParameterTypes());
@@ -44,7 +44,7 @@ public class Parser {
         }
         for (Object obj : node.methods) {
             MethodNode methodNode = (MethodNode)obj;
-            cls.addMethod(parseMethod(methodNode));
+            cls.addMethod(parseMethod(methodNode, node.name));
         }
         parseAnnotations(cls.getAnnotations(), node);
         return cls;

teavm-core/src/main/java/org/teavm/parsing/ProgramParser.java

@@ -42,6 +42,7 @@ public class ProgramParser {
     private int[] localsMap;
     private int minLocal;
     private Program program;
+    private String currentClassName;
 
     private static class Step {
         public final int source;
@@ -53,8 +54,9 @@ public class ProgramParser {
         }
     }
 
-    public Program parse(MethodNode method) {
+    public Program parse(MethodNode method, String className) {
         program = new Program();
+        this.currentClassName = className;
         InsnList instructions = method.instructions;
         if (instructions.size() == 0) {
             return program;
@@ -1402,6 +1404,11 @@ public class ProgramParser {
                     if (desc.equals("D") || desc.equals("J")) {
                         currentDepth++;
                     }
+                    if (!owner.equals(currentClassName)) {
+                        InitClassInstruction initInsn = new InitClassInstruction();
+                        initInsn.setClassName(ownerCls);
+                        builder.add(initInsn);
+                    }
                     GetFieldInstruction insn = new GetFieldInstruction();
                     insn.setField(new FieldReference(ownerCls, name));
                     insn.setFieldType(type);
@@ -1413,6 +1420,11 @@ public class ProgramParser {
                     if (desc.equals("D") || desc.equals("J")) {
                         currentDepth--;
                     }
+                    if (!owner.equals(currentClassName)) {
+                        InitClassInstruction initInsn = new InitClassInstruction();
+                        initInsn.setClassName(ownerCls);
+                        builder.add(initInsn);
+                    }
                     int value = --currentDepth;
                     PutFieldInstruction insn = new PutFieldInstruction();
                     insn.setField(new FieldReference(ownerCls, name));

teavm-core/src/main/java/org/teavm/parsing/SSATransformer.java

@@ -374,5 +374,9 @@ public class SSATransformer {
             insn.setArray(use(insn.getArray()));
             insn.setReceiver(define(insn.getReceiver()));
         }
+
+        @Override
+        public void visit(InitClassInstruction insn) {
+        }
     };
 }

teavm-core/src/main/resources/org/teavm/javascript/runtime.js

@@ -250,7 +250,7 @@ $rt_methodStubs = function(clinit, names) {
 }
 $rt_stdoutBuffer = "";
 $rt_putStdout = function(ch) {
-    if (ch == '\n') {
+    if (ch === 0xA) {
         if (console) {
             console.info($rt_stdoutBuffer);
         }
@@ -261,7 +261,7 @@ $rt_putStdout = function(ch) {
 }
 $rt_stderrBuffer = "";
 $rt_putStderr = function(ch) {
-    if (ch == '\n') {
+    if (ch === 0xA) {
         if (console) {
             console.info($rt_stderrBuffer);
         }

teavm-samples/pom.xml

@@ -8,21 +8,19 @@
   </parent>
   <artifactId>teavm-samples</artifactId>
 
-  <dependencies>
-    <dependency>
-      <groupId>org.teavm</groupId>
-      <artifactId>teavm-classlib</artifactId>
-      <version>0.0.1-SNAPSHOT</version>
-      <scope>provided</scope>
-    </dependency>
-  </dependencies>
-
   <build>
     <plugins>
       <plugin>
         <groupId>org.teavm</groupId>
         <artifactId>teavm-maven-plugin</artifactId>
         <version>${project.version}</version>
+        <dependencies>
+          <dependency>
+            <groupId>org.teavm</groupId>
+            <artifactId>teavm-classlib</artifactId>
+            <version>0.0.1-SNAPSHOT</version>
+          </dependency>
+        </dependencies>
         <executions>
           <execution>
             <id>generate-javascript</id>

teavm-samples/src/main/java/org/teavm/samples/HelloWorld.java

@@ -7,5 +7,15 @@ package org.teavm.samples;
 public class HelloWorld {
     public static void main(String[] args) {
         System.out.println("Hello, world!");
+        System.out.println("Here is the Fibonacci sequence:");
+        long a = 0;
+        long b = 1;
+        for (int i = 0; i < 70; ++i) {
+            System.out.println(a);
+            long c = a + b;
+            a = b;
+            b = c;
+        }
+        System.out.println("And so on...");
     }
 }