[−][src]Module wast::lexer
Definition of a lexer for the WebAssembly text format.
This module provides a Lexer
type which is an iterate over the raw
tokens of a WebAssembly text file. A Lexer
accounts for every single
byte in a WebAssembly text field, returning tokens even for comments and
whitespace. Typically you'll ignore comments and whitespace, however.
If you'd like to iterate over the tokens in a file you can do so via:
use wast::lexer::Lexer; let wat = "(module (func $foo))"; for token in Lexer::new(wat) { println!("{:?}", token?); }
Note that you'll typically not use this module but will rather use
ParseBuffer
instead.
Structs
Float | A parsed float. |
Integer | A parsed integer, signed or unsigned. |
Lexer | A structure used to lex the s-expression syntax of WAT files. |
Enums
Comment | The types of comments that can be lexed from WAT source text, including the original text of the comment itself. |
FloatVal | Possible parsed float values |
LexError | Errors that can be generated while lexing. |
Source | A fragment of source lex'd from an input string. |
Token | The kinds of tokens that can be lexed for WAT s-expressions. |