rhai/tools/reserved.txt

// This file holds a list of reserved symbols for the Rhai language.
//
// The mapped attributes are:
// - is this a reserved symbol? (bool)
// - can this keyword be called normally as a function? (bool)
// - can this keyword be called in method-call style? (bool)
//
// Generate the output table via:
// ```bash
// gperf -t reserved.txt
// ```
//
// Since GNU gperf does not produce Rust output, the ANSI-C output must be hand-edited and
// manually spliced into `tokenizer.rs`.
//
// This includes:
// * Rewrite the C hashing program (especially since it uses a `switch` statement with fall-through)
//   into equivalent Rust as the function `is_reserved_keyword_or_symbol`.
// * Update the values for the `???_RESERVED_???` constants.
// * Copy the `asso_values` array into `RESERVED_ASSOC_VALUES`.
// * Copy the `wordlist` array into `RESERVED_LIST` with the following modifications:
//   - Remove the `#line` comments
//   - Change the entry wrapping `{ .. }` into tuples `( .. )`
//   - Replace all entries `("")` by `("", false, false, false)`
//   - Feature flags can be incorporated directly into the output via the `cfg!` macro
//
struct reserved;
%%
"?.",           cfg!(feature = "no_object"), false, false
"?[",           cfg!(feature = "no_index"), false, false
"fn",           cfg!(feature = "no_function"), false, false
"private",      cfg!(feature = "no_function"), false, false
"import",       cfg!(feature = "no_module"), false, false
"export",       cfg!(feature = "no_module"), false, false
"as",           cfg!(feature = "no_module"), false, false
"===",          true, false, false
"!==",          true, false, false
"->",           true, false, false
"<-",           true, false, false
"?",            true, false, false
":=",           true, false, false
":;",           true, false, false
"~",            true, false, false
"!.",           true, false, false
"::<",          true, false, false
"(*",           true, false, false
"*)",           true, false, false
"#",            true, false, false
"#!",           true, false, false
"@",            true, false, false
"$",            true, false, false
"++",           true, false, false
"--",           true, false, false
"...",          true, false, false
"<|",           true, false, false
"|>",           true, false, false
"public",       true, false, false
"protected",    true, false, false
"super",        true, false, false
"new",          true, false, false
"use",          true, false, false
"module",       true, false, false
"package",      true, false, false
"var",          true, false, false
"static",       true, false, false
"shared",       true, false, false
"with",         true, false, false
"is",           true, false, false
"goto",         true, false, false
"exit",         true, false, false
"match",        true, false, false
"case",         true, false, false
"default",      true, false, false
"void",         true, false, false
"null",         true, false, false
"nil",          true, false, false
"spawn",        true, false, false
"thread",       true, false, false
"go",           true, false, false
"sync",         true, false, false
"async",        true, false, false
"await",        true, false, false
"yield",        true, false, false
"print",        true, true, false
"debug",        true, true, false
"type_of",      true, true, true
"eval",         true, true, false
"Fn",           true, true, false
"call",         true, true, true
"curry",        true, true, true
"this",         true, false, false
"is_def_var",   true, true, false
"is_def_fn",    cfg!(not(feature = "no_function")), true, false
"is_shared",    cfg!(not(feature = "no_closure")), true, true