language: none support

ast/src/main/ast/pork.yml

@@ -276,6 +276,9 @@ types:
   Continue:
     parent: Expression
     values: []
+  NoneLiteral:
+    parent: Expression
+    values: []
   Native:
     parent: Node
     values:

ast/src/main/graph/types.dot

@@ -34,6 +34,7 @@ digraph A {
   type_ForIn [shape=box,label="ForIn"]
   type_Break [shape=box,label="Break"]
   type_Continue [shape=box,label="Continue"]
+  type_NoneLiteral [shape=box,label="NoneLiteral"]
   type_Native [shape=box,label="Native"]
   type_Node -> type_Expression
   type_Node -> type_Symbol
@@ -62,6 +63,7 @@ digraph A {
   type_Expression -> type_ForIn
   type_Expression -> type_Break
   type_Expression -> type_Continue
+  type_Expression -> type_NoneLiteral
   type_Definition -> type_FunctionDefinition
   type_Definition -> type_LetDefinition
   type_Declaration -> type_ImportDeclaration

ast/src/main/kotlin/gay/pizza/pork/ast/NodeCoalescer.kt

@@ -56,6 +56,9 @@ class NodeCoalescer(val handler: (Node) -> Unit) : NodeVisitor<Unit> {
   override fun visitNative(node: Native): Unit =
     handle(node)
 
+  override fun visitNoneLiteral(node: NoneLiteral): Unit =
+    handle(node)
+
   override fun visitParentheses(node: Parentheses): Unit =
     handle(node)
 

ast/src/main/kotlin/gay/pizza/pork/ast/NodeType.kt

@@ -24,6 +24,7 @@ enum class NodeType(val parent: NodeType? = null) {
   ListLiteral(Expression),
   LongLiteral(Expression),
   Native(Node),
+  NoneLiteral(Expression),
   Parentheses(Expression),
   PrefixOperation(Expression),
   SetAssignment(Expression),

ast/src/main/kotlin/gay/pizza/pork/ast/NodeVisitor.kt

@@ -38,6 +38,8 @@ interface NodeVisitor<T> {
 
   fun visitNative(node: Native): T
 
+  fun visitNoneLiteral(node: NoneLiteral): T
+
   fun visitParentheses(node: Parentheses): T
 
   fun visitPrefixOperation(node: PrefixOperation): T

ast/src/main/kotlin/gay/pizza/pork/ast/NodeVisitorExtensions.kt

@@ -29,6 +29,7 @@ fun <T> NodeVisitor<T>.visit(node: Node): T =
     is ForIn -> visitForIn(node)
     is Break -> visitBreak(node)
     is Continue -> visitContinue(node)
+    is NoneLiteral -> visitNoneLiteral(node)
     is Native -> visitNative(node)
   }
 

ast/src/main/kotlin/gay/pizza/pork/ast/NoneLiteral.kt

@@ -0,0 +1,22 @@
+// GENERATED CODE FROM PORK AST CODEGEN
+package gay.pizza.pork.ast
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+@SerialName("noneLiteral")
+class NoneLiteral : Expression() {
+  override val type: NodeType = NodeType.NoneLiteral
+
+  override fun <T> visit(visitor: NodeVisitor<T>): T =
+    visitor.visitNoneLiteral(this)
+
+  override fun equals(other: Any?): Boolean {
+    if (other !is NoneLiteral) return false
+    return true
+  }
+
+  override fun hashCode(): Int =
+    31 * type.hashCode()
+}