This commit fixes some issues with falsy attributes not being properly
set/removed in various situations. Also, the behaviour was not
consistent between normal attribute (key/value) and generic attributes
(pair or object)
Owl provides a way to manage errors occuring in component lifecycle
methods. However, before this commit, these errors were not always
logged or visible, which is very annoying in the common developer
workflow (doing something, checking it works, seeing no error but a
broken interface).
In this commit, we make sure errors are logged/throws in all cases:
- if an error occurs in a mounting operation => the promise is rejected
(which will log the error)
- if an error occurs after the mounting operation and is not handled by
any error handlers => the error will be logged (with console.error).
Also, in that case, this commit adds a warning to explain that owl
destroys the root component, which will help developers understanding
what happened.
The problem was that the compiler is based on the assumption that the
multi block received by the parser only occurs in some cases
where the structure of the template require a multi block, and it does
not work when we have random multiblock elsewhere.
We could fix the issue by modifying the code generator code to support
these usecases, or by simply removing these cases in the parser. Since
this seems more efficient, this is the approach taken by this commit.
Note that it was a good opportunity to simplify the parser.
Have a child component on which a render is triggered.
This component delays its willUpdateProps and makes a rendering during the willUpdateProps
Before this commit, renderings of the child were inconsistent across
its parent's renderings.
After this commit, it works as expected.
Before this commit, when defining a getter in the env passed to useSubEnv,
the value was read, losing the definition of the property.
After this commit, declaring a getter in the env works as expected:
the property stays a getter.
Before this commit, when defining a getter in the env passed to the App,
the value was read, losing the definition of the property.
After this commit, declaring a getter in the env works as expected:
the property stays a getter.
Before this commit, class inheritance when using the onError hook was unclear nay wrong.
After this commit, error handlers are called from the bottom up in the inheritance hierarchy.
If a handler doesn't rethrow the error, the handling stops there and no other handler is called.
If a handler does rethrow, the handlers declared in a parent class are executed.
In the following situation: A parent of B, B parent of C, with an error
when C is mounted, caught by B and retriggering a rendering in B, then
the onMounted hook of A wasn't properly called. This commit fixes this
problem.
Before this commit, there were situations where the reference numbers
were not properly set, which caused the blocks generated to crash
because the algorithm could not get correct references.
When a parent and a child were rendered at the same time, it was
possible for the 2 renders to decrement the same fiber internal
counter, which meant that the render was stalled.
The slot inner working has been reworked. A prop "slots" is now passed
explicitely to the component. It looks like
{ slotName_1: slotInfo_1, ..., slotName_m: slotInfo_m }
with the objects slotInfo_i with mandatory keys "__render", "__ctx",
and optional key "__scope" and possibly others.
Here is how a slotInfo object can be created:
A slotInfo object is normally created by setting in a template something
like
<div>
<t t-set-slot="foo" t-set-scope="scope" param_1="var" param_2="3">
content
<t t-esc="scope.bool"/>
<t t-esc="scope.num"/>
</t>
</div>
and it will be used somewhere like
<div>
<t t-esc="props.slots.foo.param_1"/>
<t t-slot="foo" bool="other_var" num="5">
</div>
In the above example, the function "__render" produces the block dom
element for the content of the t-set-slot.
The context "__ctx" will have a key "scope" with value { bool: ..., num: 5 }
and "__scope" will be set to "scope".
This commit makes the reactivity system more fine grained and makes it
more eager to stop observing keys or objects when they are modified,
this results in fewer "false positive" notifications.
Before this commit, errors triggered at the level of the fiber (as opposed to at the level
of a component's rendering), were handled as the very top level of the rendering, that is,
in the scheduler.
This was wrong because components below in the rendering tree would not have a chance to handle their
children's or their own errors.
After this commit, error triggered in willPatch, onMounted and onPatched are correctly handled
at the closest component to where they were thrown.
Have a Child Compnent which has one component that succeeds and another
one that fails at its instanciation.
The Child component handles the Errors by rendering itself.
Before this commit, the error handling algorithm made impossible for the scheduler to finish.
This was because the current fiber was still counted as ongoing, when it was actually completed.
After this commit, this use case is handled correctly.
t-out automatically escaped content when it is a string not marked
with the `markup` function
t-out renders the raw content if it is a Block, or if it has been marked
with the `markup` funtion.
t-esc has been kept since it is safe and is optimized to render text nodes.
all t-raw calls are in fact the same as t-out.
Géry Debongnie