Set up visitor (#3)

Co-authored-by: geno <gabriele.genovese2@studio.unibo.it>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/ast/nodes/AtomNode.java b/src/ast/nodes/AtomNode.java
new file mode 100644
index 0000000..fa81f92
--- /dev/null
+++ b/src/ast/nodes/AtomNode.java
@@ -0,0 +1,45 @@
+package com.clp.project.ast.nodes;
+
+import java.util.ArrayList;
+
+import com.clp.project.semanticanalysis.SemanticError;
+import com.clp.project.semanticanalysis.SymbolTable;
+import com.clp.project.ast.types.*;
+
+/**
+ * Node for the `atom` statement of the grammar.
+ */
+public class AtomNode implements Node {
+    protected String val;
+
+    public AtomNode(String val) {
+        this.val = val;
+    }
+
+    @Override
+    public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
+        return new ArrayList<SemanticError>();
+    }
+
+    // FIXME: this type for atom
+    @Override
+    public Type typeCheck() {
+        return new AtomType();
+    }
+
+    // TODO: add code generation for atom node
+    @Override
+    public String codeGeneration() {
+        return "";
+    }
+
+    @Override
+    public String toPrint(String prefix) {
+        if (val != null) {
+            return prefix + "Atom(" + val + ")\n";
+        }
+
+        return prefix + "Atom(null)\n";
+
+    }
+}