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Fix warning about MetaContext so it's less misleading.

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This commit is contained in:
Greg Johnston
2022-12-30 19:30:35 -05:00
parent c438b46eb1
commit 26b28be436
1 changed files with 8 additions and 3 deletions
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11
meta/src/lib.rs
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@@ -59,7 +59,7 @@ pub struct MetaContext {
}
/// Provides a [MetaContext], if there is not already one provided. This ensures that you can provide it
/// at the highest possible level, without overwriting a [MetaContext] that has already been provided
/// at the highest possible level, without overwriting a [MetaContext] that has already been provided
/// (for example, by a server-rendering integration.)
pub fn provide_meta_context(cx: Scope) {
if use_context::<MetaContext>(cx).is_none() {
@@ -74,11 +74,16 @@ pub fn provide_meta_context(cx: Scope) {
///
/// Note that this may cause confusing behavior, e.g., if multiple nested routes independently
/// call `use_head()` but a single [MetaContext] has not been provided at the application root.
/// The best practice is always to `provide_context(cx, MetaContext::new())` early in the application.
/// The best practice is always to call [provide_meta_context] early in the application.
pub fn use_head(cx: Scope) -> MetaContext {
match use_context::<MetaContext>(cx) {
None => {
debug_warn!("use_head() is being called with a MetaContext being provided. We'll automatically create and provide one, but if this is being called in a child route it will cause bugs. To be safe, you should provide_context(cx, MetaContext::new()) somewhere in the root of the app.");
debug_warn!(
"use_head() is being called without a MetaContext being provided. \
We'll automatically create and provide one, but if this is being called in a child \
route it may cause bugs. To be safe, you should provide_meta_context(cx) \
somewhere in the root of the app."
);
let meta = MetaContext::new();
provide_context(cx, meta.clone());
meta