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package nu.validator.htmlparser.cpptranslate;
import japa.parser.ast.expr.BinaryExpr;
import japa.parser.ast.expr.BinaryExpr.Operator;
import japa.parser.ast.expr.Expression;
import japa.parser.ast.expr.MethodCallExpr;
import japa.parser.ast.expr.NameExpr;
import japa.parser.ast.expr.NullLiteralExpr;
import japa.parser.ast.stmt.BlockStmt;
import japa.parser.ast.stmt.ExpressionStmt;
import japa.parser.ast.stmt.Statement;
import java.util.List;
public class TranslatorUtils {
public static boolean isErrorOnlyBlock(Statement elseStmt, boolean supportErrorReporting) {
if (supportErrorReporting) {
return false;
}
if (elseStmt instanceof BlockStmt) {
BlockStmt block = (BlockStmt) elseStmt;
List<Statement> statements = block.getStmts();
if (statements == null) {
return false;
}
if (statements.size() != 1) {
return false;
}
Statement statement = statements.get(0);
if (statement instanceof ExpressionStmt) {
ExpressionStmt exprStmt = (ExpressionStmt) statement;
Expression expr = exprStmt.getExpression();
if (expr instanceof MethodCallExpr) {
MethodCallExpr call = (MethodCallExpr) expr;
if (call.getName().startsWith("err")) {
return true;
}
}
}
}
return false;
}
public static boolean isErrorHandlerIf(Expression condition, boolean supportErrorReporting) {
if (supportErrorReporting) {
return false;
}
while (condition instanceof BinaryExpr) {
BinaryExpr binex = (BinaryExpr) condition;
condition = binex.getLeft();
if (condition instanceof NameExpr) {
NameExpr name = (NameExpr) condition;
if ("errorHandler".equals(name.getName())) {
return true;
}
}
}
return false;
}
public static boolean isDocumentModeHandlerNullCheck(Expression condition) {
if (condition instanceof BinaryExpr) {
BinaryExpr binex = (BinaryExpr) condition;
if (binex.getOperator() != Operator.notEquals) {
return false;
}
if (!(binex.getRight() instanceof NullLiteralExpr)) {
return false;
}
Expression left = binex.getLeft();
if (left instanceof NameExpr) {
NameExpr name = (NameExpr) left;
if ("documentModeHandler".equals(name.getName())) {
return true;
}
}
}
return false;
}
}
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