PlaceholderPartResolutionContext class

A resolution context for placeholder expressions, providing configuration, resolution logic, and tracking for visited placeholders.

This context is passed to PlaceholderParts during resolution, giving them access to:

It is a central piece of the placeholder resolution engine.

Implemented types

Constructors

PlaceholderPartResolutionContext(PlaceholderResolverFn resolver, String prefix, String suffix, bool ignoreUnresolvablePlaceholders, List<PlaceholderPart> parser(String), Log logger): A resolution context for placeholder expressions, providing configuration, resolution logic, and tracking for visited placeholders.

hashCode → int: The hash code for this object.
no setterinherited
ignoreUnresolvablePlaceholders → bool: Whether to ignore unresolvable placeholders and leave them as-is.
final
logger → Log: Logger used for resolution tracing.
final
parser → List<PlaceholderPart> Function(String): A function that parses raw text into PlaceholderParts.
final
prefix → String: The placeholder prefix (e.g. #{).
final
resolver → PlaceholderResolverFn: The underlying resolver used to resolve individual placeholder values.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
suffix → String: The placeholder suffix (e.g. }).
final
visitedPlaceholders ↔ Set<String>?: Set of placeholders that have already been visited (for circular reference detection).
getter/setter pair

flagPlaceholderAsVisited(String placeholder) → void: Marks the given placeholder as visited to detect circular references.
handleUnresolvablePlaceholder(String key, String text) → String: Handles what to do when a placeholder cannot be resolved.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
parse(String text) → List<PlaceholderPart>: Parses the given text into a list of PlaceholderParts using the context’s parser.
removePlaceholder(String placeholder) → void: Removes the given placeholder from the visited placeholders set.
resolvePlaceholder(String placeholderName) → String?: Strategy interface for resolving placeholder values in configuration strings.
override
toPlaceholderText(String text) → String: Reconstructs a placeholder expression from the text using the context’s prefix and suffix.
toString() → String: A string representation of this object.
inherited