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package ast.nodes;
import ast.types.*;
import java.util.ArrayList;
import semanticanalysis.SemanticError;
import semanticanalysis.SymbolTable;
/**
* Node for the `expr_list` statement of the grammar.
*/
public class ExprListNode implements Node {
private final ArrayList<Node> exprs;
public ExprListNode(ArrayList<Node> exprs) {
this.exprs = exprs;
}
@Override
public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
ArrayList<SemanticError> errors = new ArrayList<>();
for (var expr : exprs) {
errors.addAll(expr.checkSemantics(ST, _nesting));
}
return errors;
}
public int getSize() {
return exprs.size();
}
/**
* Returns the i-th expressions of `exprs` field. If the index is greater or
* equals than the size return `null`.
*/
public Node getElem(int i) {
if (i >= this.exprs.size()) {
return null;
}
return exprs.get(i);
}
@Override
public Type typeCheck() {
return new VoidType();
}
// TODO: code generation for expr list
@Override
public String codeGeneration() {
return "";
}
@Override
public String toPrint(String prefix) {
String str = prefix + "ExprList\n";
prefix += " ";
for (var param : exprs) {
str += param.toPrint(prefix);
}
return str;
}
}
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