const std = @import("std");
const expect = std.testing.expect;

const JavascriptString = @import("ast/base.zig").JavascriptString;

usingnamespace @import("string_types.zig");

pub fn containsChar(self: string, char: u8) bool {
    return std.mem(char) != null;
}

pub fn indexOfChar(self: string, char: u8) ?usize {
    return std.mem.indexOfScalar(@TypeOf(char), self, char);
}

pub fn lastIndexOfChar(self: string, char: u8) ?usize {
    return std.mem.lastIndexOfScalar(u8, self, char);
}

pub fn lastIndexOf(self: string, str: u8) ?usize {
    return std.mem.lastIndexOf(u8, self, str);
}

pub fn indexOf(self: string, str: u8) ?usize {
    return std.mem.indexOf(u8, self, str);
}

pub fn eql(self: string, other: anytype) bool {
    return std.mem.eql(u8, self, other);
}

pub fn append(allocator: *std.mem.Allocator, self: string, other: string) !string {
    return std.fmt.allocPrint(allocator, "{s}{s}", .{ self, other });
}

pub fn index(self: string, str: string) i32 {
    if (std.mem.indexOf(u8, self, str)) |i| {
        return @intCast(i32, i);
    } else {
        return -1;
    }
}

pub fn eqlUtf16(comptime self: string, other: JavascriptString) bool {
    return std.mem.eql(u16, std.unicode.utf8ToUtf16LeStringLiteral(self), other);
}