Determines dependencies.
Description
Recursively builds an array of items to process taking dependencies into account. Does NOT catch infinite loops.
Parameters
$handlesstring|string[]required- Item handle (string) or item handles (array of strings).
$recursionbooloptional- Internal flag that function is calling itself.
Default:
false $groupint|falseoptional- Group level: level (int), no group (false).
Default:
false
Source
public function all_deps( $handles, $recursion = false, $group = false ) { $handles = (array) $handles; if ( ! $handles ) { return false; } foreach ( $handles as $handle ) { $handle_parts = explode( '?', $handle ); $handle = $handle_parts[0]; $queued = in_array( $handle, $this->to_do, true ); if ( in_array( $handle, $this->done, true ) ) { // Already done. continue; } $moved = $this->set_group( $handle, $recursion, $group ); $new_group = $this->groups[ $handle ]; if ( $queued && ! $moved ) { // Already queued and in the right group. continue; } $keep_going = true; if ( ! isset( $this->registered[ $handle ] ) ) { $keep_going = false; // Item doesn't exist. } elseif ( $this->registered[ $handle ]->deps && array_diff( $this->registered[ $handle ]->deps, array_keys( $this->registered ) ) ) { $keep_going = false; // Item requires dependencies that don't exist. } elseif ( $this->registered[ $handle ]->deps && ! $this->all_deps( $this->registered[ $handle ]->deps, true, $new_group ) ) { $keep_going = false; // Item requires dependencies that don't exist. } if ( ! $keep_going ) { // Either item or its dependencies don't exist. if ( $recursion ) { return false; // Abort this branch. } else { continue; // We're at the top level. Move on to the next one. } } if ( $queued ) { // Already grabbed it and its dependencies. continue; } if ( isset( $handle_parts[1] ) ) { $this->args[ $handle ] = $handle_parts[1]; } $this->to_do[] = $handle; } return true; }
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