use of org.apache.calcite.linq4j.tree.MemberDeclaration in project storm by apache.
the class RexNodeToJavaCodeCompiler method baz.
/** Given a method that implements {@link ExecutableExpression#execute(Context, Object[])},
* adds a bridge method that implements {@link ExecutableExpression#execute(Context)}, and
* compiles. */
static String baz(ParameterExpression context_, ParameterExpression outputValues_, BlockStatement block, String className) {
final List<MemberDeclaration> declarations = Lists.newArrayList();
// public void execute(Context, Object[] outputValues)
declarations.add(Expressions.methodDecl(Modifier.PUBLIC, void.class, StormBuiltInMethod.EXPR_EXECUTE2.method.getName(), ImmutableList.of(context_, outputValues_), block));
// public Object execute(Context)
final BlockBuilder builder = new BlockBuilder();
final Expression values_ = builder.append("values", Expressions.newArrayBounds(Object.class, 1, Expressions.constant(1)));
builder.add(Expressions.statement(Expressions.call(Expressions.parameter(ExecutableExpression.class, "this"), StormBuiltInMethod.EXPR_EXECUTE2.method, context_, values_)));
builder.add(Expressions.return_(null, Expressions.arrayIndex(values_, Expressions.constant(0))));
declarations.add(Expressions.methodDecl(Modifier.PUBLIC, Object.class, StormBuiltInMethod.EXPR_EXECUTE1.method.getName(), ImmutableList.of(context_), builder.toBlock()));
final ClassDeclaration classDeclaration = Expressions.classDecl(Modifier.PUBLIC, className, null, ImmutableList.<Type>of(ExecutableExpression.class), declarations);
return Expressions.toString(Lists.newArrayList(classDeclaration), "\n", false);
}
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