Merge pull request #12 from mtrberzi/schematic-value-visitor

Add interface for SchematicValueVisitor

src/main/java/org/manifold/compiler/ArrayTypeValue.java

@@ -5,14 +5,16 @@ public class ArrayTypeValue extends TypeValue {
 
   private final TypeValue elementType;
 
-  public TypeValue getElementType(){
+  public TypeValue getElementType() {
     return this.elementType;
   }
 
-  public ArrayTypeValue(TypeValue elementType){
+  public ArrayTypeValue(TypeValue elementType) {
     this.elementType = elementType;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/ArrayValue.java

@@ -61,6 +61,8 @@ public boolean isRuntimeKnowable() {
     return true;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/BooleanTypeValue.java

@@ -10,6 +10,8 @@ public static BooleanTypeValue getInstance() {
 
   private BooleanTypeValue() { }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/BooleanValue.java

@@ -37,6 +37,8 @@ public boolean isRuntimeKnowable() {
     return true;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/ConnectionType.java

@@ -16,6 +16,8 @@ public ImmutableMap<String, TypeValue> getAttributes() {
     return attributes;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/ConnectionValue.java

@@ -49,6 +49,8 @@ public boolean isRuntimeKnowable() {
     return true;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/ConstraintType.java

@@ -16,6 +16,8 @@ public ImmutableMap<String, TypeValue> getAttributes() {
     return attributes;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/ConstraintValue.java

@@ -28,6 +28,8 @@ public boolean isRuntimeKnowable() {
     return true;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/IntegerTypeValue.java

@@ -11,6 +11,8 @@ public static IntegerTypeValue getInstance() {
     return instance;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/IntegerValue.java

@@ -18,6 +18,8 @@ public boolean isRuntimeKnowable() {
     return false;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/NilTypeValue.java

@@ -9,6 +9,8 @@ public static NilTypeValue getInstance() {
 
   private NilTypeValue() { }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/NodeTypeValue.java

@@ -24,6 +24,8 @@ public Map<String, PortTypeValue> getPorts() {
     return this.ports;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/NodeValue.java

@@ -67,6 +67,8 @@ public boolean isRuntimeKnowable() {
     return true;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/PortTypeValue.java

@@ -15,6 +15,8 @@ public Map<String, TypeValue> getAttributes() {
     return this.attributes;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/PortValue.java

@@ -37,6 +37,8 @@ public boolean isRuntimeKnowable() {
     return true;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/SchematicValueVisitor.java

@@ -0,0 +1,41 @@
+package org.manifold.compiler;
+
+public interface SchematicValueVisitor {
+
+  void visit(ArrayTypeValue arrayTypeValue);
+
+  void visit(TypeTypeValue typeTypeValue);
+
+  void visit(StringValue stringValue);
+
+  void visit(StringTypeValue stringTypeValue);
+
+  void visit(PortValue portValue);
+
+  void visit(PortTypeValue portTypeValue);
+
+  void visit(NodeValue nodeValue);
+
+  void visit(NodeTypeValue nodeTypeValue);
+
+  void visit(NilTypeValue nilTypeValue);
+
+  void visit(IntegerValue integerValue);
+
+  void visit(ConstraintValue constraintValue);
+
+  void visit(IntegerTypeValue integerTypeValue);
+
+  void visit(ConstraintType constraintType);
+
+  void visit(ConnectionValue connectionValue);
+
+  void visit(ConnectionType connectionType);
+
+  void visit(BooleanValue booleanValue);
+
+  void visit(BooleanTypeValue booleanTypeValue);
+
+  void visit(ArrayValue arrayValue);
+
+}

src/main/java/org/manifold/compiler/StringTypeValue.java

@@ -10,6 +10,8 @@ public static StringTypeValue getInstance() {
     return instance;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/StringValue.java

@@ -19,6 +19,8 @@ public boolean isRuntimeKnowable() {
     return false;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/TypeTypeValue.java

@@ -16,6 +16,8 @@ public boolean isSubtypeOf(TypeValue type) {
     return this == type;
   }
 
-
+  public void accept(SchematicValueVisitor visitor) {
+    visitor.visit(this);
+  }
 
 }

src/main/java/org/manifold/compiler/Value.java

@@ -33,4 +33,12 @@ public void verify() throws Exception {}
    */
   public abstract boolean isRuntimeKnowable();
 
+  /*
+   * Allows SchematicValueVisitors to process this Value.
+   * Must be overridden in every subclass of Value that can be instantiated,
+   * usually with code of the form "visitor.visit(this);".
+   */
+
+  public abstract void accept(SchematicValueVisitor visitor);
+
 }

src/test/java/org/manifold/compiler/TestTypeValue.java

@@ -22,6 +22,10 @@ private FacadeTypeValue() {}
 
     @Override
     public void verify() {}
+
+    // Not tested.
+    public void accept(SchematicValueVisitor visitor) {}
+
   }
 
   private TypeValue getInstance() {