import "../colours.syncat";

// Keywords

"let", "const", "static", "mut", "ref", "move", "dyn",
"fn", "struct", "enum", "trait", "impl", "type",
"pub", "mod", "extern", "crate", "use", "super", "where",
"if", "else", "match", "loop", "for", "while", "return", "in",
"async" {
  color: $keyword;
}

"unsafe" {
  color: $error;
}

closure_parameters > "|" {
  color: $operator;
}

remaining_field_pattern > "..",
match_arm > "=>",
match_pattern > "|" {
  color: $keyword;
}

// Imports

use_wildcard "*" {
  color: $keyword;
}

use_wildcard > identifier,
scoped_use_list > identifier,
scoped_identifier > identifier & /^[a-z]/ {
  color: $module;
}

// Operators

"&", "|", "^",
unary_expression > "!", "~", "+", "-", "*", "/", "%",
">", "<", "<=", ">=", "==", "!=",
"<<", ">>",
"&&", "||",
"=", "+=", "-=", "*=", "/=", "%=", "|=", "&=", "^=", "<<=", ">>=",
"..", "..=",
"?",
index_expression > "[",
index_expression > "]", {
  color: $operator;
}

// Types

scoped_type_identifier > identifier & /^[A-Z]/,
scoped_identifier > identifier & /^[A-Z]/,
use_list > identifier & /^[A-Z]/,
type_identifier,
primitive_type {
  color: $type;
}

// Values

lifetime {
  color: $meta;
}

boolean_literal, integer_literal, float_literal {
  color: $value;
}

string_literal,
char_literal,
string_literal {
  color: $string;
  dim: false;
}

enum_variant > identifier,
identifier & /^[A-Z_][A-Z0-9_]*$/, {
  color: $constant;
}

// Patterns

match_pattern > identifier {
  color: $constant;
}

// Function declaration

function_item > identifier,
function_signature_item > identifier {
  color: $function;
}

function_item > "->",
function_type > "->",
type_arguments > "<",
type_arguments > ">",
type_parameters > "<",
type_parameters > ">" {
  color: $operator;
}

// Function call

call_expression > identifier,
call_expression > field_expression > field_identifier,
call_expression > generic_function > field_expression > field_identifier {
  color: $function;
}

// Macro invocation

"macro_rules!",
macro_definition > identifier,
macro_invocation > identifier,
macro_invocation > "!" {
  color: $meta;
}

inner_attribute_item,
attribute_item {
  color: $meta;
  dim: true;
}

// Macro rules

token_repetition > "$",
token_repetition > "(",
token_repetition > ")",
token_repetition > "*",
token_repetition > "+",
token_repetition > "?",
token_repetition_pattern > "$",
token_repetition_pattern > "(",
token_repetition_pattern > ")",
token_repetition_pattern > "*",
token_repetition_pattern > "+",
token_repetition_pattern > "?", {
  color: $keyword;
}

macro_rule > "=>" {
  color: $keyword;
}

metavariable {
  color: $variable;
}

fragment_specifier {
  color: $type;
}

// Comments

line_comment, block_comment {
  color: $comment;
}

// Specific word overrides

"Ok", "Err", "Some", "None" {
  color: $builtin;
}

"Self",
"Self",
"Fn",
"FnOnce",
"FnMut",
"_" {
  color: $keyword;
}

"self" {
  color: $variable;
}