Module style::applicable_declarations

Applicable declarations management.

Structs

• ApplicableDeclarationBlock
  A property declaration together with its precedence among rules of equal specificity so that we can sort them.
• CascadePriority
  The cascade-level+layer order of this declaration.
• ScopeProximity
  Proximity to the scope root.

Constants

• PROXIMITY_INFINITY 🔒
  Sacrifice the largest possible value for infinity. This makes the comparison trivial.
• SOURCE_ORDER_BITS 🔒
  Blink uses 18 bits to store source order, and does not check overflow [1]. That’s a limit that could be reached in realistic webpages, so we use 24 bits and enforce defined behavior in the overflow case.
• SOURCE_ORDER_MASK 🔒
• SOURCE_ORDER_MAX 🔒

Type Aliases

• ApplicableDeclarationList
  List of applicable declarations. This is a transient structure that shuttles declarations between selector matching and inserting into the rule tree, and therefore we want to avoid heap-allocation where possible.