Parser (proguard-core 9.3.3-wcpe-4 API)

类型参数:

T - The AST node this parser will be returning.

所有已知实现类:

LazyParser
```
public interface Parser<T>
```
Main interface of the parser library, used to implement custom parsers.

方法概要

所有方法实例方法抽象方法默认方法
修饰符和类型	方法	说明
`default <R> Parser<R>`	`map(java.util.function.Function<T,R> function)`	Helper for converting a result of the parser into another type.
`default T`	`parse(java.lang.String input)`	Helper function to parse whole strings.
`T`	`parse(ParserContext context)`	The core of the parsing logic.

- 方法详细资料
  - parse
```
@Nullable
T parse(ParserContext context)
```
    The core of the parsing logic. The context argument specifies where in the input string we are currently parsing. The responsibility of this function is to do one of:
    
    Consume a part of the input and return a non-null value.
    Return null and keep the input context untouched. This can be achieved either by avoiding the calls to ParserContext.advance(int), or through the use of snapshotting (see ParserContext.snapshot()).
    参数:
    
    context - Context of the parser containing the parsed string and the position in that string.
    
    返回:
    
    Null-value if this parser did not match anything. Non-null if it matched.
  - parse
```
default T parse(java.lang.String input)
```
    Helper function to parse whole strings.
    
    参数:
    
    input - A string to parse.
    
    返回:
    
    A parsed out value (likely AST) or null, if it does not match.
  - map
```
default <R> Parser<R> map(java.util.function.Function<T,R> function)
```
    Helper for converting a result of the parser into another type. More or less equivalent to Stream.map(Function).
    
    类型参数:
    
    R - The return type of the new parser.
    
    参数:
    
    function - Function that should be used to map the result of the given parser.
    
    返回:
    
    A new parser which returns the expected type.