exercise 1 completed

1.b now works
1.c implened error for "function takes N positional arguments but M were given"

1 files changed, 8 insertions, 4 deletions

diff --git a/src/ast/nodes/ArglistNode.java b/src/ast/nodes/ArglistNode.java
index 71bcdce..cd1a403 100644
--- a/src/ast/nodes/ArglistNode.java
+++ b/src/ast/nodes/ArglistNode.java
@@ -1,15 +1,15 @@
 package ast.nodes;
 
+import ast.types.*;
 import java.util.ArrayList;
-
 import semanticanalysis.SemanticError;
 import semanticanalysis.SymbolTable;
-import ast.types.*;
 
 /**
  * Node for the `arglist` statement of the grammar.
  */
 public class ArglistNode implements Node {
+
     protected ArrayList<Node> arguments;
 
     public ArglistNode(ArrayList<Node> arguments) {
@@ -19,14 +19,14 @@ public class ArglistNode implements Node {
     @Override
     public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
         ArrayList<SemanticError> errors = new ArrayList<SemanticError>();
-        
+
         for (var arg : arguments) {
             ExprNode argExpr = (ExprNode) arg;
             String argName = argExpr.getId();
 
             // TODO: check fucking IntType for params
             // TODO: remove fucking comments
-            if (!ST.top_lookup(argName) && argExpr.typeCheck() instanceof AtomType){
+            if (argName != null && !ST.top_lookup(argName) && argExpr.typeCheck() instanceof AtomType) {
                 // System.out.println(!(this.typeCheck() instanceof IntType) + " " + !ST.top_lookup(this.getId()));
                 errors.add(new SemanticError("'" + argName + "' is not defined."));
             } else {
@@ -37,6 +37,10 @@ public class ArglistNode implements Node {
         return errors;
     }
 
+    public int getArgumentNumber() {
+        return arguments.size();
+    }
+
     @Override
     public Type typeCheck() {
         return new VoidType();