private static Statement convertAstToAssignStatement(ASTStatement ast, Path prefix)
throws SyntaxException {
// Sanity check. Ensure that this is a assignment statement.
assert (ast.getStatementType() == StatementType.ASSIGN);
AssignmentStatement statement = null;
// Get the identifier and create the path. Resolve this against the
// prefix if the given path is relative.
Path path = createPathFromIdentifier(ast);
path = Path.resolve(prefix, path);
// Create the assignment statement.
assert (ast.jjtGetNumChildren() <= 1);
if (ast.jjtGetNumChildren() == 0) {
// This is a delete statement.
Element element = Null.VALUE;
statement =
AssignmentStatement.createAssignmentStatement(
ast.getSourceRange(), path, element, ast.getConditionalFlag(), !ast.getFinalFlag());
} else {
// This is a normal assignment statement.
ASTOperation child = (ASTOperation) ast.jjtGetChild(0);
Operation dml = astToDml(child, true);
statement =
AssignmentStatement.createAssignmentStatement(
ast.getSourceRange(), path, dml, ast.getConditionalFlag(), !ast.getFinalFlag());
}
return statement;
}
private static Path convertAstToPrefixStatement(ASTStatement ast) throws SyntaxException {
// Sanity check.
assert (ast.getStatementType() == StatementType.PREFIX);
if (!"".equals(ast.getIdentifier())) {
// Normal path was given check that it is absolute.
Path path = createPathFromIdentifier(ast);
if (!path.isAbsolute()) {
throw SyntaxException.create(
ast.getSourceRange(), MessageUtils.MSG_PREFIX_MUST_BE_ABSOLUTE_PATH, path.toString());
}
return path;
} else {
// Empty path was given so just return null to indicate there is no
// prefix.
return null;
}
}