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Add strict PHPStan rules for Speculative Loading #1392

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merged 3 commits into from
Jul 24, 2024
Merged

Add strict PHPStan rules for Speculative Loading #1392

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7ffe2b1
Add strict PHPStan rules for Speculative Loading
westonruter Jul 23, 2024
97c7254
Refine JSON schema
westonruter Jul 23, 2024
2465855
Fix since tags
westonruter Jul 24, 2024
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1 change: 0 additions & 1 deletion phpstan.neon.dist
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Original file line number Diff line number Diff line change
Expand Up @@ -70,5 +70,4 @@ parameters:
- */tests/*
- plugins/dominant-color-images
- plugins/performance-lab
- plugins/speculation-rules
- plugins/webp-uploads
16 changes: 3 additions & 13 deletions plugins/speculation-rules/helper.php
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Expand Up @@ -19,21 +19,11 @@
*
* @since 1.0.0
*
* @return array<string, array<int, array<string, mixed>>> Associative array of speculation rules by type.
* @return non-empty-array<string, array<int, array<string, mixed>>> Associative array of speculation rules by type.
*/
function plsr_get_speculation_rules(): array {
$option = get_option( 'plsr_speculation_rules' );

/*
* This logic is only relevant for edge-cases where the setting may not be registered,
* a.k.a. defensive coding.
*/
if ( ! is_array( $option ) ) {
$option = array();
}
$option = array_merge( plsr_get_setting_default(), $option );

$mode = (string) $option['mode'];
$option = plsr_get_stored_setting_value();
$mode = $option['mode'];
$eagerness = $option['eagerness'];

$prefixer = new PLSR_URL_Pattern_Prefixer();
Expand Down
7 changes: 1 addition & 6 deletions plugins/speculation-rules/hooks.php
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Expand Up @@ -19,13 +19,8 @@
* @since 1.0.0
*/
function plsr_print_speculation_rules(): void {
$rules = plsr_get_speculation_rules();
if ( empty( $rules ) ) {
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This function never returns an empty array, so this condition is dead code.

return;
}

wp_print_inline_script_tag(
(string) wp_json_encode( $rules ),
(string) wp_json_encode( plsr_get_speculation_rules() ),
array( 'type' => 'speculationrules' )
);
}
Expand Down
86 changes: 46 additions & 40 deletions plugins/speculation-rules/settings.php
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Expand Up @@ -16,7 +16,7 @@
*
* @since 1.0.0
*
* @return array<string, string> Associative array of `$mode => $label` pairs.
* @return array{ prefetch: string, prerender: string } Associative array of `$mode => $label` pairs.
*/
function plsr_get_mode_labels(): array {
return array(
Expand All @@ -30,7 +30,7 @@ function plsr_get_mode_labels(): array {
*
* @since 1.0.0
*
* @return array<string, string> Associative array of `$eagerness => $label` pairs.
* @return array{ conservative: string, moderate: string, eager: string } Associative array of `$eagerness => $label` pairs.
*/
function plsr_get_eagerness_labels(): array {
return array(
Expand All @@ -43,9 +43,9 @@ function plsr_get_eagerness_labels(): array {
/**
* Returns the default setting value for Speculative Loading configuration.
*
* @since 1.0.0
* @since n.e.x.t
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*
* @return array<string, string> {
* @return array{ mode: 'prerender', eagerness: 'moderate' } {
* Default setting value.
*
* @type string $mode Mode.
Expand All @@ -59,13 +59,30 @@ function plsr_get_setting_default(): array {
);
}

/**
* Returns the stored setting value for Speculative Loading configuration.
*
* @since 1.0.0
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*
* @return array{ mode: 'prefetch'|'prerender', eagerness: 'conservative'|'moderate'|'eager' } {
* Stored setting value.
*
* @type string $mode Mode.
* @type string $eagerness Eagerness.
* }
*/
function plsr_get_stored_setting_value(): array {
return plsr_sanitize_setting( get_option( 'plsr_speculation_rules' ) );
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The plsr_sanitize_setting() function could perhaps be eliminated in favor of the JSON schema.

}

/**
* Sanitizes the setting for Speculative Loading configuration.
*
* @since 1.0.0
* @todo Consider whether the JSON schema for the setting could be reused here.
*
* @param mixed $input Setting to sanitize.
* @return array<string, string> {
* @return array{ mode: 'prefetch'|'prerender', eagerness: 'conservative'|'moderate'|'eager' } {
* Sanitized setting.
*
* @type string $mode Mode.
Expand All @@ -79,17 +96,14 @@ function plsr_sanitize_setting( $input ): array {
return $default_value;
}

$mode_labels = plsr_get_mode_labels();
$eagerness_labels = plsr_get_eagerness_labels();

// Ensure only valid keys are present.
$value = array_intersect_key( $input, $default_value );
$value = array_intersect_key( array_merge( $default_value, $input ), $default_value );

// Set any missing or invalid values to their defaults.
if ( ! isset( $value['mode'] ) || ! isset( $mode_labels[ $value['mode'] ] ) ) {
// Constrain values to what is allowed.
if ( ! in_array( $value['mode'], array_keys( plsr_get_mode_labels() ), true ) ) {
$value['mode'] = $default_value['mode'];
}
if ( ! isset( $value['eagerness'] ) || ! isset( $eagerness_labels[ $value['eagerness'] ] ) ) {
if ( ! in_array( $value['eagerness'], array_keys( plsr_get_eagerness_labels() ), true ) ) {
$value['eagerness'] = $default_value['eagerness'];
}

Expand All @@ -113,7 +127,8 @@ function plsr_register_setting(): void {
'default' => plsr_get_setting_default(),
'show_in_rest' => array(
'schema' => array(
'properties' => array(
'type' => 'object',
'properties' => array(
'mode' => array(
'description' => __( 'Whether to prefetch or prerender URLs.', 'speculation-rules' ),
'type' => 'string',
Expand All @@ -125,6 +140,7 @@ function plsr_register_setting(): void {
'enum' => array_keys( plsr_get_eagerness_labels() ),
),
),
'additionalProperties' => false,
),
),
)
Expand Down Expand Up @@ -188,7 +204,7 @@ static function (): void {
* @since 1.0.0
* @access private
*
* @param array<string, string> $args {
* @param array{ field: 'mode'|'eagerness', title: non-empty-string, description: non-empty-string } $args {
* Associative array of arguments.
*
* @type string $field The slug of the sub setting controlled by the field.
Expand All @@ -197,28 +213,24 @@ static function (): void {
* }
*/
function plsr_render_settings_field( array $args ): void {
if ( empty( $args['field'] ) || empty( $args['title'] ) ) { // Invalid.
return;
}
Comment on lines -200 to -202
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The field and title args are always provided in plsr_add_setting_ui().


$option = get_option( 'plsr_speculation_rules' );
if ( ! isset( $option[ $args['field'] ] ) ) { // Invalid.
return;
}
$option = plsr_get_stored_setting_value();

$value = $option[ $args['field'] ];
$callback = "plsr_get_{$args['field']}_labels";
if ( ! is_callable( $callback ) ) {
return;
switch ( $args['field'] ) {
case 'mode':
$choices = plsr_get_mode_labels();
break;
case 'eagerness':
$choices = plsr_get_eagerness_labels();
break;
default:
return; // Invalid (and this case should never occur).
}
$choices = call_user_func( $callback );

$value = $option[ $args['field'] ];
?>
<fieldset>
<legend class="screen-reader-text"><?php echo esc_html( $args['title'] ); ?></legend>
<?php
foreach ( $choices as $slug => $label ) {
?>
<?php foreach ( $choices as $slug => $label ) : ?>
<p>
<label>
<input
Expand All @@ -230,17 +242,11 @@ function plsr_render_settings_field( array $args ): void {
<?php echo esc_html( $label ); ?>
</label>
</p>
<?php
}
<?php endforeach; ?>

if ( ! empty( $args['description'] ) ) {
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The description is always provided in plsr_add_setting_ui().

?>
<p class="description" style="max-width: 800px;">
<?php echo esc_html( $args['description'] ); ?>
</p>
<?php
}
?>
<p class="description" style="max-width: 800px;">
<?php echo esc_html( $args['description'] ); ?>
</p>
</fieldset>
<?php
}
Expand Down
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