diff options
| author | Benjamin J. Culkin <bjculkin@mix.wvu.edu> | 2020-12-14 19:29:37 -0400 |
|---|---|---|
| committer | Benjamin J. Culkin <bjculkin@mix.wvu.edu> | 2020-12-14 19:29:37 -0400 |
| commit | 9351ea3e97bbe2d348aa17067ccc6267dc7c080f (patch) | |
| tree | dd2269c26161c735d94d8dc83d56e6076c2a155d /base/src/main/java/bjc/utils/patterns/IPatternMatcher.java | |
| parent | 8933de7f646f0565edf700aa2f2fcab06d639855 (diff) | |
| parent | 6dcadc360dafdd12142d53327f44579379a4c9dd (diff) | |
Merge branch 'master' of https://github.com/bculkin2442/bjc-utils2
Diffstat (limited to 'base/src/main/java/bjc/utils/patterns/IPatternMatcher.java')
| -rw-r--r-- | base/src/main/java/bjc/utils/patterns/IPatternMatcher.java | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/base/src/main/java/bjc/utils/patterns/IPatternMatcher.java b/base/src/main/java/bjc/utils/patterns/IPatternMatcher.java deleted file mode 100644 index b688a47..0000000 --- a/base/src/main/java/bjc/utils/patterns/IPatternMatcher.java +++ /dev/null @@ -1,85 +0,0 @@ -package bjc.utils.patterns; - -import java.util.function.*; - -import bjc.functypes.*; - -/** - * Represents a pattern matcher against a series of patterns. - * - * @author Ben Culkin - * - * @param <ReturnType> The type returned from matching the patterns. - * @param <InputType> The type to match against. - */ -@FunctionalInterface -public interface IPatternMatcher<ReturnType, InputType> { - /** - * Match an input object against a set of patterns. - * - * @param input The object to match against. - * - * @return The result of matching against the object. - * - * @throws NonExhaustiveMatch If none of the patterns in this set match - */ - ReturnType matchFor(InputType input) throws NonExhaustiveMatch; - - /** - * Create a pattern matcher against a static set of patterns. - * - * @param <RetType> The type returned from matching the patterns. - * @param <InpType> The type to match against. - * - * @param patterns The set of patterns to match on. - * - * @return A pattern matcher which matches on the given patterns. - */ - @SafeVarargs - static <RetType, InpType> IPatternMatcher<RetType, InpType> matchingOn( - ComplexPattern<RetType, ?, InpType>... patterns) { - return new PatternMatcher<>(patterns); - } - - /** - * Create a pattern matcher from a handler function. - * - * @param <RetType> The type returned by the matcher. - * @param <InpType> The type to match against. - * - * @param handler The handler function. - * - * @return A pattern matcher defined by the given handler. - */ - static <RetType, InpType> IPatternMatcher<RetType, InpType> from( - ThrowFunction<InpType, RetType, NonExhaustiveMatch> handler) { - return new FunctionalPatternMatcher<>(handler); - } - - /** - * Create a pattern matcher which applies a transform to its input. - * - * @param <NewInput> The new input type to use. - * @param transformer The function to convert from the new input to the old input. - * - * @return A pattern matcher which takes values of the new type instead. - */ - default <NewInput> IPatternMatcher<ReturnType, NewInput> transformInput( - Function<NewInput, InputType> transformer) { - return from(inp -> matchFor(transformer.apply(inp))); - } - - /** - * Create a pattern matcher which applies a transform to its output. - * - * @param <NewOutput> The new output type to use. - * - * @param transformer The function to convert from the new output to the old output. - * - * @return A pattern matcher which takes values of the new type instead. - */ - default <NewOutput> IPatternMatcher<NewOutput, InputType> transformOutput( - Function<ReturnType, NewOutput> transformer) { - return from(inp -> transformer.apply(matchFor(inp))); - } -}
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