Expand description
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
- A parsed float.
- A parsed integer, signed or unsigned.
- A structure used to lex the s-expression syntax of WAT files.
- A parsed string.
Enums
- Possible parsed float values
- Errors that can be generated while lexing.
- A sign token for an integer.
- A fragment of source lex’d from an input string.