Set up visitor (#3)

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

1 files changed, 63 insertions, 0 deletions

diff --git a/src/ast/nodes/FuncdefNode.java b/src/ast/nodes/FuncdefNode.java
new file mode 100644
index 0000000..c48eb1c
--- /dev/null
+++ b/src/ast/nodes/FuncdefNode.java
@@ -0,0 +1,63 @@
+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.*;
+import org.antlr.v4.runtime.tree.TerminalNode;
+
+/**
+ * Node for the `funcdef` statement of the grammar.
+ */
+public class FuncdefNode implements Node {
+    private TerminalNode name;
+    private Node paramlist;
+    private Node block;
+
+    public FuncdefNode(TerminalNode name, Node paramlist, Node block) {
+        this.name = name;
+        this.paramlist = paramlist;
+        this.block = block;
+    }
+
+    @Override
+    public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
+        ArrayList<SemanticError> errors = new ArrayList<SemanticError>();
+
+        if (paramlist != null) {
+            errors.addAll(paramlist.checkSemantics(ST, _nesting));
+        }
+
+        errors.addAll(block.checkSemantics(ST, _nesting));
+
+        return errors;
+    }
+
+    // FIXME: this type must be the same of the return stmt variable
+    @Override
+    public Type typeCheck() {
+        return new VoidType();
+    }
+
+    // TODO: code generation for funcdef
+    @Override
+    public String codeGeneration() {
+        return "";
+    }
+
+    public String toPrint(String prefix) {
+        String str = prefix + "Funcdef(" + name + ")\n";
+
+        prefix += "  ";
+
+        if (paramlist != null) {
+            str += paramlist.toPrint(prefix);
+        }
+
+        str += block.toPrint(prefix);
+
+        return str;
+    }
+
+}