diff options
| author | bjculkin <bjculkin@WIT-136XG42.wvu-ad.wvu.edu> | 2017-04-12 10:46:51 -0400 |
|---|---|---|
| committer | bjculkin <bjculkin@WIT-136XG42.wvu-ad.wvu.edu> | 2017-04-12 10:46:51 -0400 |
| commit | f394306a4b65a3328551f9f6b8d4abff8bfd5b27 (patch) | |
| tree | 08b0de69bf15ae49077851eecfa3ca2efbc9e736 /JPratt/src/main/java/bjc/pratt/commands/InitialCommands.java | |
| parent | 694bed833470393ee00eae0a85bff0c6c90e692a (diff) | |
Package reorganization
Diffstat (limited to 'JPratt/src/main/java/bjc/pratt/commands/InitialCommands.java')
| -rw-r--r-- | JPratt/src/main/java/bjc/pratt/commands/InitialCommands.java | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/JPratt/src/main/java/bjc/pratt/commands/InitialCommands.java b/JPratt/src/main/java/bjc/pratt/commands/InitialCommands.java deleted file mode 100644 index b373a7c..0000000 --- a/JPratt/src/main/java/bjc/pratt/commands/InitialCommands.java +++ /dev/null @@ -1,171 +0,0 @@ -package bjc.pratt.commands; - -import static bjc.pratt.blocks.ParseBlocks.repeating; -import static bjc.pratt.blocks.ParseBlocks.simple; -import static bjc.pratt.blocks.ParseBlocks.trigger; - -import java.util.function.UnaryOperator; - -import bjc.pratt.InitialCommand; -import bjc.pratt.ParseBlock; -import bjc.pratt.Token; -import bjc.utils.data.ITree; - -/** - * * Contains factory methods for producing common implementations of - * {@link InitialCommand} - * - * @author EVE - * - */ -public class InitialCommands { - /** - * Create a new unary operator. - * - * @param precedence - * The precedence of the operator. - * - * @return A command implementing that operator. - */ - public static <K, V, C> InitialCommand<K, V, C> unary(final int precedence) { - return new UnaryCommand<>(precedence); - } - - /** - * Create a new grouping operator. - * - * @param precedence - * The precedence of the expression in the operator. - * - * @param term - * The type that closes the group. - * - * @param mark - * The token for the AST node of the group. - * - * @return A command implementing the operator. - */ - public static <K, V, C> InitialCommand<K, V, C> grouping(final int precedence, final K term, - final Token<K, V> mark) { - final ParseBlock<K, V, C> innerBlock = simple(precedence, term, null); - - return new GroupingCommand<>(innerBlock, mark); - } - - /** - * Create a new leaf operator. - * - * @return A command implementing the operator. - */ - public static <K, V, C> InitialCommand<K, V, C> leaf() { - return new LeafCommand<>(); - } - - /** - * Create a new pre-ternary operator, like an if-then-else statement. - * - * @param cond1 - * The priority of the first block. - * - * @param block1 - * The priority of the second block. - * - * @param block2 - * The priority of the third block. - * - * @param mark1 - * The marker that ends the first block. - * - * @param mark2 - * The marker that ends the second block. - * - * @param term - * The token for the AST node of the group. - * - * @return A command implementing the operator. - */ - public static <K, V, C> InitialCommand<K, V, C> preTernary(final int cond1, final int block1, final int block2, - final K mark1, final K mark2, final Token<K, V> term) { - final ParseBlock<K, V, C> condBlock = simple(cond1, mark1, null); - final ParseBlock<K, V, C> opblock1 = simple(block1, mark2, null); - final ParseBlock<K, V, C> opblock2 = simple(block2, null, null); - - return new PreTernaryCommand<>(condBlock, opblock1, opblock2, term); - } - - /** - * Create a new named constant. - * - * @param val - * The value of the constant. - * - * @return A command implementing the constant. - */ - public static <K, V, C> InitialCommand<K, V, C> constant(final ITree<Token<K, V>> val) { - return new ConstantCommand<>(val); - } - - /** - * Create a new delimited command. This is for block-like constructs. - * - * @param inner - * The precedence of the inner blocks. - * - * @param delim - * The marker between sub-blocks. - * - * @param mark - * The block terminator. - * - * @param term - * The token for the AST node of the group. - * - * @param onEnter - * The function to apply to the state on entering the - * block. - * - * @param onDelim - * The function to apply to the state on finishing a - * sub-block. - * - * @param onExit - * The function to apply to the state on exiting the - * block. - * - * @param statement - * Whether or not the sub-blocks are statements or - * expressions. - * - * @return A command implementing the operator. - */ - public static <K, V, C> InitialCommand<K, V, C> delimited(final int inner, final K delim, final K mark, - final Token<K, V> term, final UnaryOperator<C> onEnter, final UnaryOperator<C> onDelim, - final UnaryOperator<C> onExit, final boolean statement) { - final ParseBlock<K, V, C> innerBlock = simple(inner, null, null); - final ParseBlock<K, V, C> delimsBlock = repeating(innerBlock, delim, mark, term, onDelim); - final ParseBlock<K, V, C> scopedBlock = trigger(delimsBlock, onEnter, onExit); - - final GroupingCommand<K, V, C> command = new GroupingCommand<>(scopedBlock, term); - - /* - * Remove the wrapper layer from grouping-command on top of - * RepeatingParseBlock. - */ - return denest(command); - } - - /** - * Create a new denesting command. - * - * This removes one tree-level, and is useful when combining complex - * parse blocks with commands. - * - * @param comm - * The command to denest. - * - * @return A command that denests the result of the provided command. - */ - public static <K, V, C> InitialCommand<K, V, C> denest(final InitialCommand<K, V, C> comm) { - return new DenestingCommand<>(comm); - } -}
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