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package ast.nodes;
import ast.types.*;
import java.util.ArrayList;
import java.util.Arrays;
import semanticanalysis.SemanticError;
import semanticanalysis.SymbolTable;
/**
* Node for the `expr` statement of the grammar.
*/
public class ExprNode implements Node {
private AtomNode atom;
private Node compOp;
private String op;
private ArrayList<Node> exprs;
private ArrayList<Node> trailers;
// built-in functions
private static final String[] bif = {
"abs",
"aiter",
"all",
"anext",
"any",
"ascii",
"bin",
"bool",
"breakpoint",
"bytearray",
"bytes",
"callable",
"chr",
"classmethod",
"compile",
"complex",
"delattr",
"dict",
"dir",
"divmod",
"enumerate",
"eval",
"exec",
"filter",
"float",
"format",
"frozenset",
"getattr",
"globals",
"hasattr",
"hash",
"help",
"hex",
"id",
"input",
"int",
"isinstance",
"issubclass",
"iter",
"len",
"list",
"locals",
"map",
"max",
"memoryview",
"min",
"next",
"object",
"oct",
"open",
"ord",
"pow",
"print",
"property",
"range",
"repr",
"reversed",
"round",
"set",
"setattr",
"slice",
"sorted",
"staticmethod",
"str",
"sum",
"super",
"tuple",
"type",
"vars",
"zip",
"__import__"};
public ExprNode(Node atom, Node compOp, ArrayList<Node> exprs, String op, ArrayList<Node> trailers) {
this.atom = (AtomNode) atom;
this.compOp = compOp;
this.exprs = exprs;
this.op = op;
this.trailers = trailers;
}
public String getId() {
return ((AtomNode) this.atom).getId();
}
@Override
public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting) {
ArrayList<SemanticError> errors = new ArrayList<SemanticError>();
if (atom != null && !Arrays.asList(bif).contains(atom.getId())) {
errors.addAll(atom.checkSemantics(ST, _nesting));
for (var trailer : trailers) {
errors.addAll(trailer.checkSemantics(ST, _nesting));
}
}
if (compOp != null) {
errors.addAll(compOp.checkSemantics(ST, _nesting));
}
for (var expr : exprs) {
errors.addAll(expr.checkSemantics(ST, _nesting));
}
return errors;
}
// FIXME: type for the expr
@Override
public Type typeCheck() {
if (this.atom != null) {
return this.atom.typeCheck();
}
return new VoidType();
}
// TODO: add code generation for expr
@Override
public String codeGeneration() {
return "";
}
@Override
public String toPrint(String prefix) {
String str = prefix + "Expr\n";
prefix += " ";
if (atom != null) {
str += atom.toPrint(prefix);
}
if (compOp != null) {
str += compOp.toPrint(prefix);
}
for (var expr : exprs) {
str += expr.toPrint(prefix);
}
for (var trailer : trailers) {
str += trailer.toPrint(prefix);
}
if (op != null) {
str += prefix + "Op(" + op + ")\n";
}
return str;
}
}
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