work on ast

src/main/antlr4/edu/kit/formal/proofscriptparser/ScriptLanguage.g4

 grammar ScriptLanguage;
 
 start
-    :   (SCRIPT name=ID '(' paramters=argList? ')' INDENT body=stmtList DEDENT)*
+    :   (SCRIPT name=ID '(' signature=argList? ')' INDENT body=stmtList DEDENT)*
     ;
 
 argList
@@ -9,13 +9,7 @@ argList
     ;
 
 varDecl
-    :   ID ':' type
-    ;
-
-type
-    :   INT
-    |   BOOL
-    |   TERMTYPE
+    :   name=ID ':' type=ID
     ;
 
 stmtList
@@ -29,11 +23,11 @@ statement
     |   forEachStmt
     |   theOnlyStmt
     |   scriptCommand
-    |   callStmt
+  //  |   callStmt
     ;
 
 assignment
-    :   variable=ID (COLON type)? ASSIGN expression SEMICOLON
+    :   variable=ID (COLON type=ID)? ASSIGN expression SEMICOLON
     ;
 
 expression
@@ -99,16 +93,17 @@ theOnlyStmt
     ;
 
 scriptCommand
-    :   cmd=ID parameter* SEMICOLON
+    :   cmd=ID parameters? SEMICOLON
     ;
 
+parameters: parameter+;
+parameter :  ((pname=ID '=')? expr=expression);
 
-parameter :  ((pname=ID '=')? expr=expression)
-;
+/*
 callStmt
     :   CALL scriptCommand SEMICOLON
     ;
-
+*/
 
 //LEXER Rules
 WS : [ \t\n\r]+ -> skip ;
@@ -125,9 +120,9 @@ TRUE : 'true' ;
 FALSE : 'false' ;
 CALL : 'call' ;
 REPEAT : 'repeat' ;
-INT : 'int' ;
+/*INT : 'int' ;
 BOOL: 'bool' ;
-TERMTYPE : 'term' ;
+TERMTYPE : 'term' ;*/
 FOREACH : 'foreach' ;
 THEONLY : 'theonly' ;
 ID : [a-zA-Z] [_a-zA-Z0-9]* ;

src/main/java/edu/kit/formatl/proofscriptparser/ASTChanger.java

+package edu.kit.formatl.proofscriptparser;
+
+import edu.kit.formatl.proofscriptparser.ast.*;
+
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * {@link ASTChanger} provides a visitor with for replacing or substiting nodes (in situ).
+ *
+ * @author Alexander Weigl
+ * @version 1 (29.04.17)
+ */
+public class ASTChanger extends DefaultASTVisitor<ASTNode> {
+    @Override public ProofScript visit(ProofScript proofScript) {
+        proofScript.setBody((Statements) proofScript.getBody().accept(this));
+        return proofScript;
+    }
+
+    @Override public AssignmentStatement visit(AssignmentStatement assign) {
+        assign.setRhs((Variable) assign.getRhs().accept(this));
+        assign.setLhs((Expression) assign.getLhs().accept(this));
+        return assign;
+    }
+
+    @Override public Expression visit(BinaryExpression e) {
+        e.setLeft((Expression) e.getLeft().accept(this));
+        e.setRight((Expression) e.getRight().accept(this));
+        return e;
+    }
+
+    @Override public MatchExpression visit(MatchExpression match) {
+        if (match.getTerm() != null)
+            match.setTerm((TermLiteral) match.getTerm().accept(this));
+        return match;
+    }
+
+    @Override public TermLiteral visit(TermLiteral term) {
+        return term;
+    }
+
+    @Override public StringLiteral visit(StringLiteral string) {
+        return string;
+    }
+
+    @Override public Variable visit(Variable variable) {
+        return variable;
+    }
+
+    @Override public BooleanLiteral visit(BooleanLiteral bool) {
+        return bool;
+    }
+
+    @Override public Statements visit(Statements statements) {
+        ArrayList copy = new ArrayList<>(statements.size());
+        for (Statement statement : statements) {
+            copy.add(statement.accept(this));
+        }
+        statements.clear();
+        statements.addAll(copy);
+        return statements;
+    }
+
+    @Override public IntegerLiteral visit(IntegerLiteral integer) {
+        return integer;
+    }
+
+    @Override public CasesStatement visit(CasesStatement casesStatement) {
+        for (CaseStatement c : casesStatement.getCases()) {
+            c.accept(this);
+        }
+        return casesStatement;
+    }
+
+    @Override public CaseStatement visit(CaseStatement caseStatement) {
+        caseStatement.getGuard().accept(this);
+        caseStatement.getBody().accept(this);
+        return caseStatement;
+    }
+
+    @Override public ScriptCallStatement visit(ScriptCallStatement call) {
+        Map<String, Expression> p = call.getParameters();
+        Set<Map.Entry<String, Expression>> entries = call.getParameters().entrySet();
+        for (Map.Entry<String, Expression> e : entries) {
+            p.put(e.getKey(), (Expression) e.getValue().accept(this));
+        }
+        return call;
+    }
+}

src/main/java/edu/kit/formatl/proofscriptparser/ASTTraversal.java

+package edu.kit.formatl.proofscriptparser;
+
+import edu.kit.formatl.proofscriptparser.ast.*;
+
+/**
+ * {@link ASTTraversal} provides a visitor with a a default traversal of the given AST.
+ *
+ * @author Alexander Weigl
+ * @version 1 (29.04.17)
+ */
+public class ASTTraversal<T> implements Visitor<T> {
+    @Override public T visit(ProofScript proofScript) {
+        proofScript.getBody().accept(this);
+        return null;
+    }
+
+    @Override public T visit(AssignmentStatement assign) {
+        assign.getLhs().accept(this);
+        return null;
+    }
+
+    @Override public T visit(BinaryExpression e) {
+        e.getLeft().accept(this);
+        e.getRight().accept(this);
+        return null;
+    }
+
+    @Override public T visit(MatchExpression match) {
+        if (match.getTerm() != null)
+            match.getTerm().accept(this);
+
+        return null;
+    }
+
+    @Override public T visit(TermLiteral term) {
+        term.accept(this);
+        return null;
+    }
+
+    @Override public T visit(StringLiteral string) {
+        return null;
+    }
+
+    @Override public T visit(Variable variable) {
+        return null;
+    }
+
+    @Override public T visit(BooleanLiteral bool) {
+        return null;
+    }
+
+    @Override public T visit(Statements statements) {
+        for (Statement statement : statements) {
+            statement.accept(this);
+        }
+        return null;
+    }
+
+    @Override public T visit(IntegerLiteral integer) {
+        return null;
+    }
+
+    @Override public T visit(CasesStatement casesStatement) {
+        for (CaseStatement c : casesStatement.getCases()) {
+            c.accept(this);
+        }
+        return null;
+    }
+
+    @Override public T visit(CaseStatement caseStatement) {
+        caseStatement.getGuard().accept(this);
+        caseStatement.getBody().accept(this);
+        return null;
+    }
+
+    @Override public T visit(ScriptCallStatement call) {
+        for (Expression e : call.getParameters().values()) {
+            e.accept(this);
+        }
+        return null;
+    }
+
+    @Override public T visit(TheOnlyStatement theOnly) {
+        return null;
+    }
+
+    @Override public T visit(ForeachStatement foreach) {
+        return null;
+    }
+
+    @Override public T visit(RepeatStatement repeatStatement) {
+        return null;
+    }
+
+    @Override public T visit(Signature signature) {
+        return null;
+    }
+
+    @Override public T visit(Parameters parameters) {
+        return null;
+    }
+}

src/main/java/edu/kit/formatl/proofscriptparser/PrettyPrinter.java

@@ -21,7 +21,7 @@ public class PrettyPrinter extends DefaultASTVisitor<Void> {
         s.append("script");
         s.append(proofScript.getName());
         s.append(" (");
-        printArglist(proofScript.getParameters());
+        proofScript.getSignature().accept(this);
         s.append(") {");
         proofScript.getBody().accept(this);
         nl();
@@ -29,14 +29,16 @@ public class PrettyPrinter extends DefaultASTVisitor<Void> {
         return null;
     }
 
-    private void printArglist(Map<String, String> parameters) {
-        Iterator<Map.Entry<String, String>> iter = parameters.entrySet().iterator();
+    @Override public Void visit(Signature sig) {
+        Iterator<Map.Entry<Variable, String>> iter = sig.entrySet().iterator();
         while (iter.hasNext()) {
-            Map.Entry<String, String> next = iter.next();
-            s.append(next.getKey()).append(" : ").append(next.getValue());
+            Map.Entry<Variable, String> next = iter.next();
+            next.getKey().accept(this);
+            s.append(" : ").append(next.getValue());
             if (iter.hasNext())
                 s.append(", ");
         }
+        return null;
     }
 
     @Override public Void visit(AssignmentStatement assign) {

src/main/java/edu/kit/formatl/proofscriptparser/TransformAst.java

@@ -23,17 +23,17 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
         ProofScript s = new ProofScript();
         s.setName(ctx.name.getText());
         s.setRuleContext(ctx);
-        if (ctx.paramters != null)
-            s.setParameters((Map<String, String>) ctx.paramters.accept(this));
+        if (ctx.signature != null)
+            s.setSignature((Signature) ctx.signature.accept(this));
         s.setBody((Statements) ctx.body.accept(this));
         scripts.add(s);
         return s;
     }
 
-    @Override public Map<String, String> visitArgList(ScriptLanguageParser.ArgListContext ctx) {
-        Map<String, String> signature = new LinkedHashMap<>();
+    @Override public Signature visitArgList(ScriptLanguageParser.ArgListContext ctx) {
+        Signature signature = new Signature();
         for (ScriptLanguageParser.VarDeclContext decl : ctx.varDecl()) {
-            signature.put(decl.ID().getText(), decl.type().getText());
+            signature.put(new Variable(decl.name), decl.type.getText());
         }
         return signature;
     }
@@ -42,10 +42,6 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
         throw new IllegalStateException("not implemented");
     }
 
-    @Override public Object visitType(ScriptLanguageParser.TypeContext ctx) {
-        throw new IllegalStateException("not implemented");
-    }
-
     @Override public Statements visitStmtList(ScriptLanguageParser.StmtListContext ctx) {
         Statements statements = new Statements();
         for (ScriptLanguageParser.StatementContext stmt : ctx.statement()) {
@@ -201,11 +197,17 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
     }
 
     @Override public Object visitForEachStmt(ScriptLanguageParser.ForEachStmtContext ctx) {
-        throw new IllegalStateException("not implemented");
+        ForeachStatement f = new ForeachStatement();
+        f.setRuleContext(ctx);
+        f.setBody((Statements) ctx.stmtList().accept(this));
+        return f;
     }
 
     @Override public Object visitTheOnlyStmt(ScriptLanguageParser.TheOnlyStmtContext ctx) {
-        throw new IllegalStateException("not implemented");
+        TheOnlyStatement f = new TheOnlyStatement();
+        f.setRuleContext(ctx);
+        f.setBody((Statements) ctx.stmtList().accept(this));
+        return f;
     }
 
     @Override public Object visitScriptCommand(ScriptLanguageParser.ScriptCommandContext ctx) {
@@ -213,22 +215,25 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
         scs.setRuleContext(ctx);
         scs.setCommand(ctx.cmd.getText());
         int i = 1;
-        if (ctx.parameter() != null) {
-            for (ScriptLanguageParser.ParameterContext p : ctx.parameter()) {
-                Expression expr = (Expression) p.expr.accept(this);
-                String key = p.ID() != null ? p.ID().getText() : "#" + (i++);
-                scs.getParameters().put(key, expr);
-            }
+        if (ctx.parameters() != null) {
+            ctx.parameters().accept(this);
         }
         return scs;
     }
 
-    @Override public Object visitParameter(ScriptLanguageParser.ParameterContext ctx) {
-        return null;
+    @Override public Object visitParameters(ScriptLanguageParser.ParametersContext ctx) {
+        Parameters params = new Parameters();
+        int i = 1;
+        for (ScriptLanguageParser.ParameterContext pc : ctx.parameter()) {
+            Expression expr = (Expression) pc.expr.accept(this);
+            Variable key = pc.pname != null ? new Variable(pc.pname) : new Variable("#" + (i++));
+            params.put(key, expr);
+        }
+        return params;
     }
 
-    @Override public Object visitCallStmt(ScriptLanguageParser.CallStmtContext ctx) {
-        throw new IllegalStateException("not implemented");
+    @Override public Object visitParameter(ScriptLanguageParser.ParameterContext ctx) {
+        return null;
     }
 
     @Override public Object visit(ParseTree parseTree) {

src/main/java/edu/kit/formatl/proofscriptparser/ast/Visitable.java → src/main/java/edu/kit/formatl/proofscriptparser/Visitable.java

-package edu.kit.formatl.proofscriptparser.ast;
+package edu.kit.formatl.proofscriptparser;
 
 /**
  * @author Alexander Weigl

src/main/java/edu/kit/formatl/proofscriptparser/ast/Visitor.java → src/main/java/edu/kit/formatl/proofscriptparser/Visitor.java

-package edu.kit.formatl.proofscriptparser.ast;
+package edu.kit.formatl.proofscriptparser;
+
+import edu.kit.formatl.proofscriptparser.ast.*;
 
 /**
  * @author Alexander Weigl
@@ -25,9 +27,19 @@ public interface Visitor<T> {
 
     T visit(IntegerLiteral integer);
 
-    T visit(CasesStatement casesStatement);
+    T visit(CasesStatement cases);
 
-    T visit(CaseStatement caseStatement);
+    T visit(CaseStatement case_);
 
     T visit(ScriptCallStatement call);
+
+    T visit(TheOnlyStatement theOnly);
+
+    T visit(ForeachStatement foreach);
+
+    T visit(RepeatStatement repeatStatement);
+
+    T visit(Signature signature);
+
+    T visit(Parameters parameters);
 }

src/main/java/edu/kit/formatl/proofscriptparser/ast/ASTNode.java

 package edu.kit.formatl.proofscriptparser.ast;
 
+import edu.kit.formatl.proofscriptparser.Visitable;
+import edu.kit.formatl.proofscriptparser.Visitor;
 import org.antlr.v4.runtime.ParserRuleContext;
 
 import java.util.Optional;

src/main/java/edu/kit/formatl/proofscriptparser/ast/AssignmentStatement.java

 package edu.kit.formatl.proofscriptparser.ast;
 
 import edu.kit.formal.proofscriptparser.ScriptLanguageParser;
+import edu.kit.formatl.proofscriptparser.Visitor;
 
 /**
  * @author Alexander Weigl

src/main/java/edu/kit/formatl/proofscriptparser/ast/BinaryExpression.java

 package edu.kit.formatl.proofscriptparser.ast;
 
+import edu.kit.formatl.proofscriptparser.Visitor;
 import org.antlr.v4.runtime.ParserRuleContext;
 
 /**

src/main/java/edu/kit/formatl/proofscriptparser/ast/BooleanLiteral.java

 package edu.kit.formatl.proofscriptparser.ast;
 
+import edu.kit.formatl.proofscriptparser.Visitor;
 import org.antlr.v4.runtime.ParserRuleContext;
 import org.antlr.v4.runtime.Token;
 

src/main/java/edu/kit/formatl/proofscriptparser/ast/CaseStatement.java

 package edu.kit.formatl.proofscriptparser.ast;
 
 import edu.kit.formal.proofscriptparser.ScriptLanguageParser;
+import edu.kit.formatl.proofscriptparser.Visitor;
 
 /**
  * @author Alexander Weigl

src/main/java/edu/kit/formatl/proofscriptparser/ast/CasesStatement.java

 package edu.kit.formatl.proofscriptparser.ast;
 
 import edu.kit.formal.proofscriptparser.ScriptLanguageParser;
+import edu.kit.formatl.proofscriptparser.Visitor;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/edu/kit/formatl/proofscriptparser/ast/DefaultASTVisitor.java

 package edu.kit.formatl.proofscriptparser.ast;
 
+import edu.kit.formatl.proofscriptparser.Visitor;
+
 /**
  * @author Alexander Weigl
  * @version 1 (28.04.17)
@@ -56,4 +58,24 @@ public class DefaultASTVisitor<T> implements Visitor<T> {
     @Override public T visit(ScriptCallStatement call) {
         return null;
     }
+
+    @Override public T visit(TheOnlyStatement theOnly) {
+        return null;
+    }
+
+    @Override public T visit(ForeachStatement foreach) {
+        return null;
+    }
+
+    @Override public T visit(RepeatStatement repeatStatement) {
+        return null;
+    }
+
+    @Override public T visit(Signature signature) {
+        return null;
+    }
+
+    @Override public T visit(Parameters parameters) {
+        return null;
+    }
 }

src/main/java/edu/kit/formatl/proofscriptparser/ast/ForeachStatement.java

+package edu.kit.formatl.proofscriptparser.ast;
+
+import edu.kit.formal.proofscriptparser.ScriptLanguageParser;
+import edu.kit.formatl.proofscriptparser.Visitor;
+
+/**
+ * @author Alexander Weigl
+ * @version 1 (29.04.17)
+ */
+public class ForeachStatement extends GoalSelector<ScriptLanguageParser.ForEachStmtContext> {
+    @Override public <T> T accept(Visitor<T> visitor) {
+        return visitor.visit(this);
+    }
+
+    @Override public ASTNode<ScriptLanguageParser.ForEachStmtContext> clone() {
+        return null;
+    }
+}

src/main/java/edu/kit/formatl/proofscriptparser/ast/GoalSelector.java

+package edu.kit.formatl.proofscriptparser.ast;
+
+import org.antlr.v4.runtime.ParserRuleContext;
+
+/**
+ * @author Alexander Weigl
+ * @version 1 (29.04.17)
+ */
+public abstract class GoalSelector<T extends ParserRuleContext> extends ASTNode<T> {
+    private Statements body;
+
+    public Statements getBody() {
+        return body;
+    }
+
+    public GoalSelector<T> setBody(Statements body) {
+        this.body = body;
+        return this;
+    }
+}

src/main/java/edu/kit/formatl/proofscriptparser/ast/IntegerLiteral.java

 package edu.kit.formatl.proofscriptparser.ast;
 
+import edu.kit.formatl.proofscriptparser.Visitor;
 import org.antlr.v4.runtime.ParserRuleContext;
 import org.antlr.v4.runtime.Token;
-import org.antlr.v4.runtime.tree.TerminalNode;
 
 import java.math.BigInteger;
 

src/main/java/edu/kit/formatl/proofscriptparser/ast/MatchExpression.java

 package edu.kit.formatl.proofscriptparser.ast;
 
 import edu.kit.formal.proofscriptparser.ScriptLanguageParser;
+import edu.kit.formatl.proofscriptparser.Visitor;
 
 import java.util.Map;
 

src/main/java/edu/kit/formatl/proofscriptparser/ast/Parameters.java

+package edu.kit.formatl.proofscriptparser.ast;
+
+import edu.kit.formal.proofscriptparser.ScriptLanguageParser;
+import edu.kit.formatl.proofscriptparser.Visitor;
+
+import java.util.Collection;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+/**
+ * @author Alexander Weigl
+ * @version 1 (29.04.17)
+ */
+public class Parameters extends ASTNode<ScriptLanguageParser.ParametersContext> {
+    private final Map<Variable, Expression> parameters = new LinkedHashMap<>();
+
+    @Override public <T> T accept(Visitor<T> visitor) {
+        return visitor.visit(this);
+    }
+
+    @Override public ASTNode<ScriptLanguageParser.ParametersContext> clone() {
+        return null;
+    }
+
+    public int size() {
+        return parameters.size();
+    }
+
+    public boolean isEmpty() {
+        return parameters.isEmpty();
+    }
+