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81 Commits

Author SHA1 Message Date
Mike Welsh f5710854b2 avm1: Fix off-by-one bug in Activation::has_local_register 2019-10-15 17:10:34 -07:00
Mike Welsh e315fcb6b3 swf: Store register count from DefineFunction2 
Also update avm1::Function to use register_count.
 2019-10-15 17:09:14 -07:00
David Wendt ad17166c63 Store the player version in `Avm1` so that `current_swf_version` doesn't require the context. 2019-10-13 18:55:39 -04:00
David Wendt 7e2cf03789 Implement register underflow behavior. 
This has the side effect of letting us remove the `Option` on register_count since setting this to `0` is equivalent now. Furthermore, we can skip an allocation if a function requests no registers.
 2019-10-13 18:41:07 -04:00
David Wendt 911cf64cb0 Fix clippy lints 2019-10-13 17:58:21 -04:00
David Wendt 269775c0e1 Implement the SWF5 version negotiation algorithm. 
On SWF5, the SWF version of the callee depends on it's this parameter. Calling it as a function rather than a method downgrades the callee. SWF6+ use the callee's inherent SWF version and do not allow changing the SWF version like this.
 2019-10-12 10:39:55 -04:00
David Wendt d543e67528 Inline the first 8 registers with a `SmallVec`. 2019-10-12 10:39:54 -04:00
David Wendt 17b1e0429c Explicitly allow `_global` and `_root` to be overwritten. 2019-10-12 10:39:53 -04:00
David Wendt 4709d2d0b4 Revert "Allow overwriting virtual properties via setting `set` to `None`." 
This reverts commit 0a8adfca6e5fce8835552c1c7aba063649ba3aeb.
 2019-10-12 10:39:53 -04:00
David Wendt 59dc35b8a4 Allow scope chain resolution to retrieve virtual properties 2019-10-12 10:39:53 -04:00
David Wendt a92190a456 Support pre-resolving `_parent` 2019-10-12 10:39:52 -04:00
David Wendt 0f04d97002 Move `_global` and `_root` to the MovieClip object, and implement `_parent` while we're in here. 2019-10-12 10:39:52 -04:00
David Wendt d35e36def5 Allow overwriting virtual properties via setting `set` to `None`. 2019-10-12 10:39:52 -04:00
David Wendt feaa3dd203 Add a version parameter to every DisplayObject impl 2019-10-12 10:39:52 -04:00
David Wendt 8668d47403 Add a player version parameter and expose it to AVM 2019-10-12 10:39:51 -04:00
David Wendt 2f257c83e8 Remove the representation split between functions defined with `DefineFunction` and `DefineFunction2`. Both are now represented with a single struct and enum. 2019-10-12 10:39:51 -04:00
David Wendt b4ddd323f2 Use the same methodology to construct new scopes for tellTarget. 2019-10-12 10:39:51 -04:00
David Wendt 1b62ead082 Construct the closure scope chain in one pass, which lets us skip the vec allocation. 2019-10-12 10:39:50 -04:00
Nathan Adams d697d03cf0 Drop the `Attribute::` everywhere 2019-10-08 20:35:23 +02:00
Nathan Adams 3d09ec81e2 Add Attribute::DontEnum 2019-10-08 16:36:39 +02:00
Nathan Adams f782aaee18 Add Attribute::ReadOnly 2019-10-08 15:24:57 +02:00
Nathan Adams f2a4000ee2 Added object property attributes (initially just DontDelete) 2019-10-08 14:30:36 +02:00
Will Brindle 2e3748438a core: define globals for NaN, Infinity, -Infinity. Should fix `typeof NaN` 2019-10-08 02:59:26 -07:00
Mike Welsh 4477e8458f avm1: Return dummy value 1 for getBytesLoaded/getBytesTotal 
Previously returned 0 which would cause divide by 0 in many
preloaders.
 2019-10-07 00:33:30 -07:00
Mike Welsh 18a3494de2 chore: Typo supress -> suppress 2019-10-06 15:24:38 -07:00
Mike Welsh b6eba80ebd chore: cargo fmt 2019-10-06 14:57:43 -07:00
Mike Welsh 1c3e4406b3 chore: Fix clippy lints 
* Remove clone calls from Copy objects
 * Used Iterator::cloned() instead of manually cloning
 * Pass swf::Function into AvmFunction2::new()
 * Use action_clone_sprite
 2019-10-06 14:57:36 -07:00
David Wendt 2d365856a7 Fix tellTarget being broken by the introduction of scopes. We now create a new scope chain based off the selected active clip. 2019-10-06 13:02:31 -07:00
David Wendt 588b2bb061 Fixes to make tests compile again 2019-10-06 13:02:31 -07:00
David Wendt 5873eefb06 Since it is possible to have virtual properties in the scope chain, overwriting them should trigger their setters. 
Define, since it's intended for setting locals only, always uses force-set and does not trigger setters.
 2019-10-06 13:02:31 -07:00
David Wendt 8ed09e22ba Refactor: Since `function.rs` handles calling conventions it should just hand the avm an activation object directly 2019-10-06 13:02:31 -07:00
David Wendt cf5420e2e1 Implement register preloading, for variables we already have implemented. 2019-10-06 13:02:31 -07:00
David Wendt a5865d7c7d Implement DefineFunction2 2019-10-06 13:02:31 -07:00
David Wendt ec1b5c457e Allow activations to hold their own private register set. 2019-10-06 13:02:31 -07:00
David Wendt 002dd9904c Implement `ActionDelete` / `ActionDelete2` 2019-10-06 13:02:31 -07:00
David Wendt 9b81a92516 Fix a number of bugs preventing the with-scope test from working at all: 
1. We no longer implicitly return Undefined unless we're specifically returning from a function (this also keeps actions from filling the stack with Undefined)
2. With scopes are now always inserted behind the current set of locals rather than overriding them
3. `ActionSubtract` now subtracts (instead of adds)
 2019-10-06 13:02:31 -07:00
David Wendt fc1ce7692b Implement ActionWith 2019-10-06 13:02:31 -07:00
David Wendt 22f75b7a4c Implement closure scope 2019-10-06 13:02:31 -07:00
David Wendt d757ce0cd2 Implement arguments object. 2019-10-06 13:02:31 -07:00
David Wendt 90b0140ac2 Don't lock up when running scope operations 2019-10-06 13:02:31 -07:00
David Wendt 9ede91df4f Move `this` into the activation object. 
Also, change the implicit `this` on functions to `active_clip` as per the `ActionContext` docstrings.
 2019-10-06 13:02:31 -07:00
David Wendt ca1fb713a3 Execute actions in MovieClip scope 2019-10-06 13:02:31 -07:00
David Wendt 215d4f2df4 Provide arguments as local variables as some functions look for these 2019-10-06 13:02:31 -07:00
David Wendt f3d83908ab All activation frames share the same stack (and can see each other's garbage). 2019-10-06 13:02:31 -07:00
David Wendt 667b30f4b5 Add scope chains for local variable resolution. 2019-10-06 13:02:31 -07:00
David Wendt edc37dee5d Add support for calling bare functions and returning from them. 2019-10-06 13:02:31 -07:00
David Wendt 00b5d9ecf5 Implement DefineFunction 2019-10-06 13:02:31 -07:00
David Wendt 83c832ce86 Distinguish between Native and ActionScript functions. 2019-10-06 13:02:31 -07:00
David Wendt 617b493733 Give AVM1 the notion of a stack frame. 
This necessitates the use of a copy of SWF data into the GC arena, along with unsafe (and possibly unsound) pointer manipulation to get the action reader to hold a GC pointer.
 2019-10-06 13:02:30 -07:00
Mike Welsh 2740f3ccc1 chore: Globally allow clippy::unneeded_field_pattern 
Often times we want to explicty destructure instead of using ..
because the compiler will emit errors if the structure changes.

(see https://github.com/rust-lang/rust-clippy/issues/1741 and #69)
 2019-10-02 12:57:58 -07:00