Set up visitor (#3)

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

1 files changed, 52 insertions, 0 deletions

diff --git a/src/ast/nodes/AssignmentNode.java b/src/ast/nodes/AssignmentNode.java
new file mode 100644
index 0000000..d722f41
--- /dev/null
+++ b/src/ast/nodes/AssignmentNode.java
@@ -0,0 +1,52 @@
+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 `assignment` statement of the grammar.
+ */
+public class AssignmentNode implements Node {
+    private Node lhr;
+    private Node assign;
+    private Node rhr;
+
+    public AssignmentNode(Node lhr, Node assign, Node rhr) {
+        this.lhr = lhr;
+        this.assign = assign;
+        this.rhr = rhr;
+    }
+
+    @Override
+    public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
+        ArrayList<SemanticError> errors = new ArrayList<SemanticError>();
+
+        errors.addAll(lhr.checkSemantics(ST, _nesting));
+        errors.addAll(assign.checkSemantics(ST, _nesting));
+        errors.addAll(rhr.checkSemantics(ST, _nesting));
+
+        return errors;
+    }
+
+    // TODO: check it out for this type
+    @Override
+    public Type typeCheck() {
+        return rhr.typeCheck();
+    }
+
+    // TODO: add code generation for assignment
+    @Override
+    public String codeGeneration() {
+        return "";
+    }
+
+    @Override
+    public String toPrint(String prefix) {
+        return prefix + "Assignment\n" + lhr.toPrint(prefix + "  ") + assign.toPrint(prefix + "  ")
+                + rhr.toPrint(prefix + "  ");
+    }
+
+}