from utils.vector import DynamicVector

def try_string():

# todo x: String 类型已经内置, 无需导入

# - ref:

# - https://docs.modular.com/mojo/lib.html

# - https://mojodojo.dev/guides/intro-to-mojo/basic-types.html#strings

#

s = String("Mojo🔥")

print(s)

# x = s.buffer

# x = 20

# print(x)

print(s[0])

print(ord(s[0]))

def try_vector():

var vec = DynamicVector[Int8](2)

vec.push_back(78)

vec.push_back(79)

# from Pointer import DTypePointer

# from DType import DType

# todo x: 转换为 String

# - 内置 StringRef, DTypePointer, DType, 不需要导入

let vec_str_ref = StringRef(DTypePointer[DType.int8](vec.data).address, vec.size)

print(vec_str_ref)

# print(vec)

vec[1] = 78

print(vec_str_ref)

# todo x: 深拷贝 deep copy

let vec_str = String(vec_str_ref)

print("vector str:", vec_str)

vec[0] = 65

vec[1] = 65

print(vec_str) # todo x: 并不会改变

var lit = "This is my StringLiteral"

print(lit)

emoji = String("🔥😀")

print("fire:", emoji[0:4])

print("smiley:", emoji[4:8])

def main():

try_string()

try_vector()