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package ast.nodes;
import java.util.ArrayList;
import semanticanalysis.SemanticError;
import semanticanalysis.SymbolTable;
import ast.types.*;
import org.antlr.v4.runtime.tree.TerminalNode;
/**
* Node for the `trailer` statement of the grammar.
*/
public class TrailerNode implements Node {
private final Node arglist;
private final ArrayList<Node> exprs;
private final TerminalNode methodCall;
private final boolean isParenthesis;
private final boolean isEmpty;
public TrailerNode(Node arglist, ArrayList<Node> exprs, TerminalNode methodCall, boolean isParenthesis) {
this.arglist = arglist;
this.exprs = exprs;
this.methodCall = methodCall;
this.isParenthesis = isParenthesis;
this.isEmpty = (this.arglist == null && this.exprs.isEmpty() && this.methodCall == null);
}
@Override
public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
ArrayList<SemanticError> errors = new ArrayList<>();
if (arglist != null) {
errors.addAll(arglist.checkSemantics(ST, _nesting));
}
for (var expr : exprs) {
errors.addAll(expr.checkSemantics(ST, _nesting));
}
return errors;
}
public int getArgumentNumber() {
if (arglist == null) {
return 0;
}
return ((ArglistNode) arglist).getArgumentNumber();
}
public boolean isParenthesis() {
return this.isParenthesis;
}
@Override
public Type typeCheck() {
return new VoidType();
}
// TODO: add code generation for trailer node
@Override
public String codeGeneration() {
return "";
}
@Override
public String toPrint(String prefix) {
String str = prefix + "TrailerNode\n";
prefix += " ";
if (arglist != null) {
str += arglist.toPrint(prefix);
}
for (var expr : exprs) {
str += expr.toPrint(prefix);
}
if (methodCall != null) {
str += prefix + "Method(" + methodCall + ")\n";
}
if (isEmpty) {
str += prefix + "()\n";
}
return str;
}
}
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