Struct lib_ruby_parser::Parser [−][src]
pub struct Parser { pub yylexer: Lexer, pub yydebug: bool, pub static_env: StaticEnvironment, // some fields omitted }
Expand description
A Bison parser, automatically generated from src/parser.y.
Fields
yylexer: Lexer
Lexer that is used to get tokens
yydebug: bool
Boolean field that enables printing shift/reduce actions during parsing
static_env: StaticEnvironment
Stack of sets of variables in current scopes. Each stack item represents locals in the scope.
You can use it to pre-define some locals and parse your input as if these locals exist.
For example, you can parse the following code
a = b + c
as
Send(LocalVar(a), "+", LocalVar(b))
by declaring a
and b
as locals using
parser.static_env.declare("a")
parser.static_env.declare("b")
parser.parse()
Implementations
Constructs a parser with given input
and options
.
Returns an error if given input
is invalid.
Parses given input and returns:
- AST
- tokens
- diagnostics
- coments
- magic comments
Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for Parser
impl !UnwindSafe for Parser