antlr-rust-runtime 0.8.0

High performance Rust runtime and target support for ANTLR v4 generated parsers
Documentation 
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version = 1

# Parser-predicate helpers from grammars-v4 javascript/javascript
# (JavaScriptParser.g4). Each appears as a bare `{this.<helper>()}?` guard, so
# they route to the generated typed hook trait; implement them once in Rust
# via `SemanticHooks` / the generated `*Hooks` trait.
#
# The lexer side of that grammar (IsRegexPossible, IsStrictMode, mode-state
# actions such as ProcessOpenBrace) is intentionally NOT mapped here: generated
# lexers have no hook plumbing yet, so those need
# `antlr4_runtime::atn::lexer::next_token_with_semantic_hooks` driven manually.
#
# Not yet covered: the argument-taking text-lookahead helpers `this.n("...")`
# and `this.p("...")` (next/previous token text equals). They need
# argument-capturing pattern support; until then those coordinates follow the
# --sem-unknown policy and are listed in semantics.json.

[[helper]]
name = "notLineTerminator"
returns = "bool"
lower = "hook"

[[helper]]
name = "lineTerminatorAhead"
returns = "bool"
lower = "hook"

[[helper]]
name = "notOpenBraceAndNotFunction"
returns = "bool"
lower = "hook"

[[helper]]
name = "closeBrace"
returns = "bool"
lower = "hook"