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package ast.nodes;
import ast.types.*;
import java.util.ArrayList;
import semanticanalysis.SemanticError;
import semanticanalysis.SymbolTable;
/**
* Node for the `simple_stmt` statement of the grammar.
*/
public class SimpleStmtNode implements Node {
private final Node assignment;
private final Node expr;
private final Node returnStmt;
private final Node importStmt;
public SimpleStmtNode(Node assignment, Node expr, Node returnStmt, Node importStmt) {
this.assignment = assignment;
this.expr = expr;
this.returnStmt = returnStmt;
this.importStmt = importStmt;
}
@Override
public ArrayList<SemanticError> checkSemantics(SymbolTable ST, int _nesting, FunctionType ft) {
ArrayList<SemanticError> errors = new ArrayList<>();
if (assignment != null) {
errors.addAll(assignment.checkSemantics(ST, _nesting, ft));
}
if (expr != null) {
errors.addAll(expr.checkSemantics(ST, _nesting, ft));
}
if (returnStmt != null) {
errors.addAll(returnStmt.checkSemantics(ST, _nesting, ft));
}
if (importStmt != null) {
errors.addAll(importStmt.checkSemantics(ST, _nesting, ft));
}
return errors;
}
@Override
public Type typeCheck() {
return new VoidType();
}
@Override
public String codeGeneration() {
if (assignment != null) {
return assignment.codeGeneration();
}
if (expr != null) {
return expr.codeGeneration();
}
if (returnStmt != null) {
return returnStmt.codeGeneration();
}
// Not supported
// if (importStmt != null) {
// return importStmt.codeGeneration();
// }
return "Error: everything is null in Compound node";
}
@Override
public String toPrint(String prefix) {
String str = prefix + "SimpleStmt\n";
prefix += " ";
if (assignment != null) {
str += assignment.toPrint(prefix);
}
if (expr != null) {
str += expr.toPrint(prefix);
}
if (returnStmt != null) {
str += returnStmt.toPrint(prefix);
}
if (importStmt != null) {
str += importStmt.toPrint(prefix);
}
return str;
}
}
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