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/*
* Code formatter project
* CS 4481
*/
package submit.ast;
import java.util.ArrayList;
import java.util.List;
import submit.MIPSResult;
import submit.RegisterAllocator;
import submit.SymbolTable;
/**
*
* @author edwajohn
*/
public class FunDeclaration extends AbstractNode implements Declaration {
private final VarType returnType;
private final String id;
private final ArrayList<Param> params;
private final Statement statement;
public FunDeclaration(VarType returnType, String id, List<Param> params,
Statement statement) {
this.returnType = returnType;
this.id = id;
this.params = new ArrayList<>(params);
this.statement = statement;
}
public void toCminus(StringBuilder builder, final String prefix) {
String rt = (returnType != null) ? returnType.toString() : "void";
builder.append("\n").append(rt).append(" ");
builder.append(id);
builder.append("(");
for (Param param : params) {
param.toCminus(builder, prefix);
builder.append(", ");
}
if (!params.isEmpty()) {
builder.delete(builder.length() - 2, builder.length());
}
builder.append(")\n");
statement.toCminus(builder, prefix);
}
@Override
public MIPSResult toMIPS(StringBuilder code, StringBuilder data,
SymbolTable symbolTable,
RegisterAllocator registerAllocator) {
code.append(id).append(":\n");
statement.toMIPS(code, data, symbolTable, registerAllocator);
if (id.equals("main"))
code.append("li $v0 10\nsyscall\n");
else
code.append("jr $ra\n");
registerAllocator.clearAll();
return MIPSResult.createVoidResult();
}
}
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