340 lines
9.5 KiB
Rust
340 lines
9.5 KiB
Rust
use crate::avm1::fscommand;
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use crate::avm1::function::Executable;
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use crate::avm1::return_value::ReturnValue;
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use crate::avm1::{Avm1, Error, Object, ObjectCell, ScriptObject, UpdateContext, Value};
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use crate::backend::navigator::NavigationMethod;
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use enumset::EnumSet;
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use gc_arena::{GcCell, MutationContext};
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use rand::Rng;
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use std::f64;
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mod function;
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mod math;
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mod movie_clip;
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mod object;
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#[allow(non_snake_case, unused_must_use)] //can't use errors yet
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pub fn getURL<'a, 'gc>(
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avm: &mut Avm1<'gc>,
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context: &mut UpdateContext<'a, 'gc, '_>,
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_this: ObjectCell<'gc>,
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args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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//TODO: Error behavior if no arguments are present
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if let Some(url_val) = args.get(0) {
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let url = url_val.clone().into_string();
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if let Some(fscommand) = fscommand::parse(&url) {
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fscommand::handle(fscommand, avm, context);
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return Ok(Value::Undefined.into());
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}
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let window = args.get(1).map(|v| v.clone().into_string());
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let method = match args.get(2) {
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Some(Value::String(s)) if s == "GET" => Some(NavigationMethod::GET),
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Some(Value::String(s)) if s == "POST" => Some(NavigationMethod::POST),
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_ => None,
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};
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let vars_method = method.map(|m| (m, avm.locals_into_form_values(context)));
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context.navigator.navigate_to_url(url, window, vars_method);
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}
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Ok(Value::Undefined.into())
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}
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pub fn random<'gc>(
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_avm: &mut Avm1<'gc>,
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action_context: &mut UpdateContext<'_, 'gc, '_>,
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_this: ObjectCell<'gc>,
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args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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match args.get(0) {
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Some(Value::Number(max)) => Ok(action_context.rng.gen_range(0.0f64, max).floor().into()),
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_ => Ok(Value::Undefined.into()), //TODO: Shouldn't this be an error condition?
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}
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}
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pub fn boolean<'gc>(
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avm: &mut Avm1<'gc>,
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_action_context: &mut UpdateContext<'_, 'gc, '_>,
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_this: ObjectCell<'gc>,
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args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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if let Some(val) = args.get(0) {
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Ok(val.as_bool(avm.current_swf_version()).into())
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} else {
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Ok(false.into())
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}
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}
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pub fn number<'gc>(
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avm: &mut Avm1<'gc>,
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action_context: &mut UpdateContext<'_, 'gc, '_>,
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_this: ObjectCell<'gc>,
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args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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if let Some(val) = args.get(0) {
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Ok(val.as_number(avm, action_context)?.into())
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} else {
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Ok(0.0.into())
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}
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}
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pub fn is_nan<'gc>(
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avm: &mut Avm1<'gc>,
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action_context: &mut UpdateContext<'_, 'gc, '_>,
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_this: ObjectCell<'gc>,
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args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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if let Some(val) = args.get(0) {
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Ok(val.as_number(avm, action_context)?.is_nan().into())
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} else {
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Ok(true.into())
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}
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}
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pub fn get_infinity<'gc>(
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avm: &mut Avm1<'gc>,
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_action_context: &mut UpdateContext<'_, 'gc, '_>,
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_this: ObjectCell<'gc>,
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_args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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if avm.current_swf_version() > 4 {
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Ok(f64::INFINITY.into())
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} else {
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Ok(Value::Undefined.into())
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}
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}
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pub fn get_nan<'gc>(
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avm: &mut Avm1<'gc>,
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_action_context: &mut UpdateContext<'_, 'gc, '_>,
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_this: ObjectCell<'gc>,
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_args: &[Value<'gc>],
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) -> Result<ReturnValue<'gc>, Error> {
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if avm.current_swf_version() > 4 {
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Ok(f64::NAN.into())
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} else {
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Ok(Value::Undefined.into())
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}
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}
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/// This structure represents all system builtins that are used regardless of
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/// whatever the hell happens to `_global`. These are, of course,
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/// user-modifiable.
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#[derive(Clone)]
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pub struct SystemPrototypes<'gc> {
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pub object: ObjectCell<'gc>,
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pub function: ObjectCell<'gc>,
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pub movie_clip: ObjectCell<'gc>,
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}
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unsafe impl<'gc> gc_arena::Collect for SystemPrototypes<'gc> {
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#[inline]
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fn trace(&self, cc: gc_arena::CollectionContext) {
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self.object.trace(cc);
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self.function.trace(cc);
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self.movie_clip.trace(cc);
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}
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}
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/// Initialize default global scope and builtins for an AVM1 instance.
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pub fn create_globals<'gc>(
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gc_context: MutationContext<'gc, '_>,
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) -> (
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SystemPrototypes<'gc>,
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GcCell<'gc, Box<dyn Object<'gc> + 'gc>>,
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) {
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let object_proto = ScriptObject::object_cell(gc_context, None);
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let function_proto = function::create_proto(gc_context, object_proto);
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object::fill_proto(gc_context, object_proto, function_proto);
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let movie_clip_proto: ObjectCell<'gc> =
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movie_clip::create_proto(gc_context, object_proto, function_proto);
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//TODO: These need to be constructors and should also set `.prototype` on each one
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let object = ScriptObject::function(
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gc_context,
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Executable::Native(object::constructor),
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Some(function_proto),
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Some(object_proto),
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);
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let function = ScriptObject::function(
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gc_context,
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Executable::Native(function::constructor),
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Some(function_proto),
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Some(function_proto),
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);
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let movie_clip = ScriptObject::function(
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gc_context,
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Executable::Native(movie_clip::constructor),
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Some(function_proto),
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Some(movie_clip_proto),
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);
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let mut globals = ScriptObject::bare_object();
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globals.define_value("Object", object.into(), EnumSet::empty());
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globals.define_value("Function", function.into(), EnumSet::empty());
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globals.define_value("MovieClip", movie_clip.into(), EnumSet::empty());
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globals.force_set_function(
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"Number",
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number,
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gc_context,
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EnumSet::empty(),
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Some(function_proto),
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);
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globals.force_set_function(
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"Boolean",
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boolean,
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gc_context,
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EnumSet::empty(),
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Some(function_proto),
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);
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globals.define_value(
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"Math",
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Value::Object(math::create(
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gc_context,
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Some(object_proto),
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Some(function_proto),
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)),
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EnumSet::empty(),
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);
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globals.force_set_function(
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"isNaN",
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is_nan,
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gc_context,
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EnumSet::empty(),
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Some(function_proto),
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);
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globals.force_set_function(
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"getURL",
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getURL,
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gc_context,
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EnumSet::empty(),
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Some(function_proto),
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);
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globals.force_set_function(
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"random",
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random,
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gc_context,
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EnumSet::empty(),
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Some(function_proto),
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);
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globals.add_property("NaN", Executable::Native(get_nan), None, EnumSet::empty());
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globals.add_property(
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"Infinity",
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Executable::Native(get_infinity),
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None,
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EnumSet::empty(),
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);
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(
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SystemPrototypes {
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object: object_proto,
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function: function_proto,
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movie_clip: movie_clip_proto,
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},
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GcCell::allocate(gc_context, Box::new(globals)),
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)
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}
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#[cfg(test)]
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#[allow(clippy::unreadable_literal)]
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mod tests {
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use super::*;
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fn setup<'gc>(
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_avm: &mut Avm1<'gc>,
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context: &mut UpdateContext<'_, 'gc, '_>,
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) -> ObjectCell<'gc> {
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create_globals(context.gc_context).1
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}
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test_method!(boolean_function, "Boolean", setup,
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[19] => {
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[true] => true,
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[false] => false,
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[10.0] => true,
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[-10.0] => true,
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[0.0] => false,
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[std::f64::INFINITY] => true,
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[std::f64::NAN] => false,
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[""] => false,
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["Hello"] => true,
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[" "] => true,
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["0"] => true,
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["1"] => true,
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[] => false
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},
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[6] => {
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[true] => true,
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[false] => false,
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[10.0] => true,
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[-10.0] => true,
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[0.0] => false,
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[std::f64::INFINITY] => true,
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[std::f64::NAN] => false,
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[""] => false,
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["Hello"] => false,
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[" "] => false,
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["0"] => false,
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["1"] => true,
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[] => false
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}
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);
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test_method!(is_nan_function, "isNaN", setup,
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[19] => {
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[true] => false,
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[false] => false,
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[10.0] => false,
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[-10.0] => false,
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[0.0] => false,
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[std::f64::INFINITY] => false,
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[std::f64::NAN] => true,
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[""] => false,
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["Hello"] => true,
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[" "] => true,
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[" 5 "] => true,
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["0"] => false,
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["1"] => false,
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["Infinity"] => true,
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["100a"] => true,
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["0x10"] => false,
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["0xhello"] => true,
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["0x1999999981ffffff"] => false,
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["0xUIXUIDFKHJDF012345678"] => true,
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["123e-1"] => false,
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[] => true
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}
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);
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test_method!(number_function, "Number", setup,
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[19] => {
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[true] => 1.0,
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[false] => 0.0,
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[10.0] => 10.0,
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[-10.0] => -10.0,
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[0.0] => 0.0,
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[std::f64::INFINITY] => std::f64::INFINITY,
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[std::f64::NAN] => std::f64::NAN,
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[""] => 0.0,
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["Hello"] => std::f64::NAN,
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[" "] => std::f64::NAN,
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[" 5 "] => std::f64::NAN,
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["0"] => 0.0,
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["1"] => 1.0,
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["Infinity"] => std::f64::NAN,
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["100a"] => std::f64::NAN,
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["0x10"] => 16.0,
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["0xhello"] => std::f64::NAN,
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["123e-1"] => 12.3,
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["0x1999999981ffffff"] => -2113929217.0,
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["0xUIXUIDFKHJDF012345678"] => std::f64::NAN,
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[] => 0.0
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}
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);
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}
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