[ENG-3848][ENG-3861]Shiki Code block Experimental (#4030)

* Shiki Code block Experimental

* refactor

* update code

* remove console.log

* add transformers to namespace

* some validations

* fix components paths

* fix ruff

* add a high-level component

* fix mapping

* fix mapping

* python 3.9+

* see if this fixes the tests

* fix pyi and annotations

* minimal update of theme and language map

* add hack for reflex-web/flexdown

* unit test file commit

* [ENG-3895] [ENG-3896] Update styling for shiki code block

* strip transformer triggers

* minor refactor

* linter

* fix pyright

* pyi fix

* add unit tests

* sneaky pyright ignore

* the transformer trigger regex should remove the language comment character

* minor refactor

* fix silly mistake

* component mapping in markdown should use the first child for codeblock

* use ternary operator in numbers.py, move code block args to class for docs discoverability

* precommit

* pyright fix

* remove id on copy button animation

* pyright fix for real

* pyi fix

* pyi fix fr

* check if svg exists

* copy event chain

* do a concatenation instead of first child

* added comment

---------

Co-authored-by: Carlos <cutillascarlos@gmail.com>
This commit is contained in:
Elijah Ahianyo 2024-10-22 17:01:34 +00:00 committed by GitHub
parent c103ab5e28
commit d63b3a2bce
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8 changed files with 3260 additions and 1 deletions

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@ -0,0 +1,29 @@
import { useEffect, useState } from "react"
import { codeToHtml} from "shiki"
export function Code ({code, theme, language, transformers, ...divProps}) {
const [codeResult, setCodeResult] = useState("")
useEffect(() => {
async function fetchCode() {
let final_code;
if (Array.isArray(code)) {
final_code = code[0];
} else {
final_code = code;
}
const result = await codeToHtml(final_code, {
lang: language,
theme,
transformers
});
setCodeResult(result);
}
fetchCode();
}, [code, language, theme, transformers]
)
return (
<div dangerouslySetInnerHTML={{__html: codeResult}} {...divProps} ></div>
)
}

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"""Shiki syntax hghlighter component."""
from __future__ import annotations
import re
from collections import defaultdict
from typing import Any, Literal, Optional, Union
from reflex.base import Base
from reflex.components.component import Component, ComponentNamespace
from reflex.components.core.colors import color
from reflex.components.core.cond import color_mode_cond
from reflex.components.el.elements.forms import Button
from reflex.components.lucide.icon import Icon
from reflex.components.radix.themes.layout.box import Box
from reflex.event import call_script, set_clipboard
from reflex.style import Style
from reflex.utils.exceptions import VarTypeError
from reflex.utils.imports import ImportVar
from reflex.vars.base import LiteralVar, Var
from reflex.vars.function import FunctionStringVar
from reflex.vars.sequence import StringVar, string_replace_operation
def copy_script() -> Any:
"""Copy script for the code block and modify the child SVG element.
Returns:
Any: The result of calling the script.
"""
return call_script(
f"""
// Event listener for the parent click
document.addEventListener('click', function(event) {{
// Find the closest div (parent element)
const parent = event.target.closest('div');
// If the parent is found
if (parent) {{
// Find the SVG element within the parent
const svgIcon = parent.querySelector('svg');
// If the SVG exists, proceed with the script
if (svgIcon) {{
const originalPath = svgIcon.innerHTML;
const checkmarkPath = '<polyline points="20 6 9 17 4 12"></polyline>'; // Checkmark SVG path
function transition(element, scale, opacity) {{
element.style.transform = `scale(${{scale}})`;
element.style.opacity = opacity;
}}
// Animate the SVG
transition(svgIcon, 0, '0');
setTimeout(() => {{
svgIcon.innerHTML = checkmarkPath; // Replace content with checkmark
svgIcon.setAttribute('viewBox', '0 0 24 24'); // Adjust viewBox if necessary
transition(svgIcon, 1, '1');
setTimeout(() => {{
transition(svgIcon, 0, '0');
setTimeout(() => {{
svgIcon.innerHTML = originalPath; // Restore original SVG content
transition(svgIcon, 1, '1');
}}, 125);
}}, 600);
}}, 125);
}} else {{
// console.error('SVG element not found within the parent.');
}}
}} else {{
// console.error('Parent element not found.');
}}
}});
"""
)
SHIKIJS_TRANSFORMER_FNS = {
"transformerNotationDiff",
"transformerNotationHighlight",
"transformerNotationWordHighlight",
"transformerNotationFocus",
"transformerNotationErrorLevel",
"transformerRenderWhitespace",
"transformerMetaHighlight",
"transformerMetaWordHighlight",
"transformerCompactLineOptions",
# TODO: this transformer when included adds a weird behavior which removes other code lines. Need to figure out why.
# "transformerRemoveLineBreak",
"transformerRemoveNotationEscape",
}
LINE_NUMBER_STYLING = {
"code": {
"counter-reset": "step",
"counter-increment": "step 0",
"display": "grid",
"line-height": "1.7",
"font-size": "0.875em",
},
"code .line::before": {
"content": "counter(step)",
"counter-increment": "step",
"width": "1rem",
"margin-right": "1.5rem",
"display": "inline-block",
"text-align": "right",
"color": "rgba(115,138,148,.4)",
},
}
BOX_PARENT_STYLING = {
"pre": {
"margin": "0",
"padding": "24px",
"background": "transparent",
"overflow-x": "auto",
"border-radius": "6px",
},
}
THEME_MAPPING = {
"light": "one-light",
"dark": "one-dark-pro",
"a11y-dark": "github-dark",
}
LANGUAGE_MAPPING = {"bash": "shellscript"}
LiteralCodeLanguage = Literal[
"abap",
"actionscript-3",
"ada",
"angular-html",
"angular-ts",
"apache",
"apex",
"apl",
"applescript",
"ara",
"asciidoc",
"asm",
"astro",
"awk",
"ballerina",
"bat",
"beancount",
"berry",
"bibtex",
"bicep",
"blade",
"c",
"cadence",
"clarity",
"clojure",
"cmake",
"cobol",
"codeowners",
"codeql",
"coffee",
"common-lisp",
"coq",
"cpp",
"crystal",
"csharp",
"css",
"csv",
"cue",
"cypher",
"d",
"dart",
"dax",
"desktop",
"diff",
"docker",
"dotenv",
"dream-maker",
"edge",
"elixir",
"elm",
"emacs-lisp",
"erb",
"erlang",
"fennel",
"fish",
"fluent",
"fortran-fixed-form",
"fortran-free-form",
"fsharp",
"gdresource",
"gdscript",
"gdshader",
"genie",
"gherkin",
"git-commit",
"git-rebase",
"gleam",
"glimmer-js",
"glimmer-ts",
"glsl",
"gnuplot",
"go",
"graphql",
"groovy",
"hack",
"haml",
"handlebars",
"haskell",
"haxe",
"hcl",
"hjson",
"hlsl",
"html",
"html-derivative",
"http",
"hxml",
"hy",
"imba",
"ini",
"java",
"javascript",
"jinja",
"jison",
"json",
"json5",
"jsonc",
"jsonl",
"jsonnet",
"jssm",
"jsx",
"julia",
"kotlin",
"kusto",
"latex",
"lean",
"less",
"liquid",
"log",
"logo",
"lua",
"luau",
"make",
"markdown",
"marko",
"matlab",
"mdc",
"mdx",
"mermaid",
"mojo",
"move",
"narrat",
"nextflow",
"nginx",
"nim",
"nix",
"nushell",
"objective-c",
"objective-cpp",
"ocaml",
"pascal",
"perl",
"php",
"plsql",
"po",
"postcss",
"powerquery",
"powershell",
"prisma",
"prolog",
"proto",
"pug",
"puppet",
"purescript",
"python",
"qml",
"qmldir",
"qss",
"r",
"racket",
"raku",
"razor",
"reg",
"regexp",
"rel",
"riscv",
"rst",
"ruby",
"rust",
"sas",
"sass",
"scala",
"scheme",
"scss",
"shaderlab",
"shellscript",
"shellsession",
"smalltalk",
"solidity",
"soy",
"sparql",
"splunk",
"sql",
"ssh-config",
"stata",
"stylus",
"svelte",
"swift",
"system-verilog",
"systemd",
"tasl",
"tcl",
"templ",
"terraform",
"tex",
"toml",
"ts-tags",
"tsv",
"tsx",
"turtle",
"twig",
"typescript",
"typespec",
"typst",
"v",
"vala",
"vb",
"verilog",
"vhdl",
"viml",
"vue",
"vue-html",
"vyper",
"wasm",
"wenyan",
"wgsl",
"wikitext",
"wolfram",
"xml",
"xsl",
"yaml",
"zenscript",
"zig",
]
LiteralCodeTheme = Literal[
"andromeeda",
"aurora-x",
"ayu-dark",
"catppuccin-frappe",
"catppuccin-latte",
"catppuccin-macchiato",
"catppuccin-mocha",
"dark-plus",
"dracula",
"dracula-soft",
"everforest-dark",
"everforest-light",
"github-dark",
"github-dark-default",
"github-dark-dimmed",
"github-dark-high-contrast",
"github-light",
"github-light-default",
"github-light-high-contrast",
"houston",
"laserwave",
"light-plus",
"material-theme",
"material-theme-darker",
"material-theme-lighter",
"material-theme-ocean",
"material-theme-palenight",
"min-dark",
"min-light",
"monokai",
"night-owl",
"nord",
"one-dark-pro",
"one-light",
"plain",
"plastic",
"poimandres",
"red",
"rose-pine",
"rose-pine-dawn",
"rose-pine-moon",
"slack-dark",
"slack-ochin",
"snazzy-light",
"solarized-dark",
"solarized-light",
"synthwave-84",
"tokyo-night",
"vesper",
"vitesse-black",
"vitesse-dark",
"vitesse-light",
]
class ShikiBaseTransformers(Base):
"""Base for creating transformers."""
library: str
fns: list[FunctionStringVar]
style: Optional[Style]
class ShikiJsTransformer(ShikiBaseTransformers):
"""A Wrapped shikijs transformer."""
library: str = "@shikijs/transformers"
fns: list[FunctionStringVar] = [
FunctionStringVar.create(fn) for fn in SHIKIJS_TRANSFORMER_FNS
]
style: Optional[Style] = Style(
{
"code": {"line-height": "1.7", "font-size": "0.875em", "display": "grid"},
# Diffs
".diff": {
"margin": "0 -24px",
"padding": "0 24px",
"width": "calc(100% + 48px)",
"display": "inline-block",
},
".diff.add": {
"background-color": "rgba(16, 185, 129, .14)",
"position": "relative",
},
".diff.remove": {
"background-color": "rgba(244, 63, 94, .14)",
"opacity": "0.7",
"position": "relative",
},
".diff.remove:after": {
"position": "absolute",
"left": "10px",
"content": "'-'",
"color": "#b34e52",
},
".diff.add:after": {
"position": "absolute",
"left": "10px",
"content": "'+'",
"color": "#18794e",
},
# Highlight
".highlighted": {
"background-color": "rgba(142, 150, 170, .14)",
"margin": "0 -24px",
"padding": "0 24px",
"width": "calc(100% + 48px)",
"display": "inline-block",
},
".highlighted.error": {
"background-color": "rgba(244, 63, 94, .14)",
},
".highlighted.warning": {
"background-color": "rgba(234, 179, 8, .14)",
},
# Highlighted Word
".highlighted-word": {
"background-color": color("gray", 2),
"border": f"1px solid {color('gray', 5)}",
"padding": "1px 3px",
"margin": "-1px -3px",
"border-radius": "4px",
},
# Focused Lines
".has-focused .line:not(.focused)": {
"opacity": "0.7",
"filter": "blur(0.095rem)",
"transition": "filter .35s, opacity .35s",
},
".has-focused:hover .line:not(.focused)": {
"opacity": "1",
"filter": "none",
},
# White Space
# ".tab, .space": {
# "position": "relative",
# },
# ".tab::before": {
# "content": "'⇥'",
# "position": "absolute",
# "opacity": "0.3",
# },
# ".space::before": {
# "content": "'·'",
# "position": "absolute",
# "opacity": "0.3",
# },
}
)
def __init__(self, **kwargs):
"""Initialize the transformer.
Args:
kwargs: Kwargs to initialize the props.
"""
fns = kwargs.pop("fns", None)
style = kwargs.pop("style", None)
if fns:
kwargs["fns"] = [
(
FunctionStringVar.create(x)
if not isinstance(x, FunctionStringVar)
else x
)
for x in fns
]
if style:
kwargs["style"] = Style(style)
super().__init__(**kwargs)
class ShikiCodeBlock(Component):
"""A Code block."""
library = "/components/shiki/code"
tag = "Code"
alias = "ShikiCode"
lib_dependencies: list[str] = ["shiki"]
# The language to use.
language: Var[LiteralCodeLanguage] = Var.create("python")
# The theme to use ("light" or "dark").
theme: Var[LiteralCodeTheme] = Var.create("one-light")
# The set of themes to use for different modes.
themes: Var[Union[list[dict[str, Any]], dict[str, str]]]
# The code to display.
code: Var[str]
# The transformers to use for the syntax highlighter.
transformers: Var[list[Union[ShikiBaseTransformers, dict[str, Any]]]] = Var.create(
[]
)
@classmethod
def create(
cls,
*children,
**props,
) -> Component:
"""Create a code block component using [shiki syntax highlighter](https://shiki.matsu.io/).
Args:
*children: The children of the component.
**props: The props to pass to the component.
Returns:
The code block component.
"""
# Separate props for the code block and the wrapper
code_block_props = {}
code_wrapper_props = {}
class_props = cls.get_props()
# Distribute props between the code block and wrapper
for key, value in props.items():
(code_block_props if key in class_props else code_wrapper_props)[key] = (
value
)
code_block_props["code"] = children[0]
code_block = super().create(**code_block_props)
transformer_styles = {}
# Collect styles from transformers and wrapper
for transformer in code_block.transformers._var_value: # type: ignore
if isinstance(transformer, ShikiBaseTransformers) and transformer.style:
transformer_styles.update(transformer.style)
transformer_styles.update(code_wrapper_props.pop("style", {}))
return Box.create(
code_block,
*children[1:],
style=Style({**transformer_styles, **BOX_PARENT_STYLING}),
**code_wrapper_props,
)
def add_imports(self) -> dict[str, list[str]]:
"""Add the necessary imports.
We add all referenced transformer functions as imports from their corresponding
libraries.
Returns:
Imports for the component.
"""
imports = defaultdict(list)
for transformer in self.transformers._var_value:
if isinstance(transformer, ShikiBaseTransformers):
imports[transformer.library].extend(
[ImportVar(tag=str(fn)) for fn in transformer.fns]
)
(
self.lib_dependencies.append(transformer.library)
if transformer.library not in self.lib_dependencies
else None
)
return imports
@classmethod
def create_transformer(cls, library: str, fns: list[str]) -> ShikiBaseTransformers:
"""Create a transformer from a third party library.
Args:
library: The name of the library.
fns: The str names of the functions/callables to invoke from the library.
Returns:
A transformer for the specified library.
Raises:
ValueError: If a supplied function name is not valid str.
"""
if any(not isinstance(fn_name, str) for fn_name in fns):
raise ValueError(
f"the function names should be str names of functions in the specified transformer: {library!r}"
)
return ShikiBaseTransformers( # type: ignore
library=library, fns=[FunctionStringVar.create(fn) for fn in fns]
)
def _render(self, props: dict[str, Any] | None = None):
"""Renders the component with the given properties, processing transformers if present.
Args:
props: Optional properties to pass to the render function.
Returns:
Rendered component output.
"""
# Ensure props is initialized from class attributes if not provided
props = props or {
attr.rstrip("_"): getattr(self, attr) for attr in self.get_props()
}
# Extract transformers and apply transformations
transformers = props.get("transformers")
if transformers is not None:
transformed_values = self._process_transformers(transformers._var_value)
props["transformers"] = LiteralVar.create(transformed_values)
return super()._render(props)
def _process_transformers(self, transformer_list: list) -> list:
"""Processes a list of transformers, applying transformations where necessary.
Args:
transformer_list: List of transformer objects or values.
Returns:
list: A list of transformed values.
"""
processed = []
for transformer in transformer_list:
if isinstance(transformer, ShikiBaseTransformers):
processed.extend(fn.call() for fn in transformer.fns)
else:
processed.append(transformer)
return processed
class ShikiHighLevelCodeBlock(ShikiCodeBlock):
"""High level component for the shiki syntax highlighter."""
# If this is enabled, the default transformers(shikijs transformer) will be used.
use_transformers: Var[bool]
# If this is enabled line numbers will be shown next to the code block.
show_line_numbers: Var[bool]
# Whether a copy button should appear.
can_copy: Var[bool] = Var.create(False)
# copy_button: A custom copy button to override the default one.
copy_button: Var[Optional[Union[Component, bool]]] = Var.create(None)
@classmethod
def create(
cls,
*children,
**props,
) -> Component:
"""Create a code block component using [shiki syntax highlighter](https://shiki.matsu.io/).
Args:
*children: The children of the component.
**props: The props to pass to the component.
Returns:
The code block component.
"""
use_transformers = props.pop("use_transformers", False)
show_line_numbers = props.pop("show_line_numbers", False)
language = props.pop("language", None)
can_copy = props.pop("can_copy", False)
copy_button = props.pop("copy_button", None)
if use_transformers:
props["transformers"] = [ShikiJsTransformer()]
if language is not None:
props["language"] = cls._map_languages(language)
# line numbers are generated via css
if show_line_numbers:
props["style"] = {**LINE_NUMBER_STYLING, **props.get("style", {})}
theme = props.pop("theme", None)
props["theme"] = props["theme"] = (
cls._map_themes(theme)
if theme is not None
else color_mode_cond( # Default color scheme responds to global color mode.
light="one-light",
dark="one-dark-pro",
)
)
if can_copy:
code = children[0]
copy_button = ( # type: ignore
copy_button
if copy_button is not None
else Button.create(
Icon.create(tag="copy", size=16, color=color("gray", 11)),
on_click=[
set_clipboard(cls._strip_transformer_triggers(code)), # type: ignore
copy_script(),
],
style=Style(
{
"position": "absolute",
"top": "4px",
"right": "4px",
"background": color("gray", 3),
"border": "1px solid",
"border-color": color("gray", 5),
"border-radius": "6px",
"padding": "5px",
"opacity": "1",
"cursor": "pointer",
"_hover": {
"background": color("gray", 4),
},
"transition": "background 0.250s ease-out",
"&>svg": {
"transition": "transform 0.250s ease-out, opacity 0.250s ease-out",
},
"_active": {
"background": color("gray", 5),
},
}
),
)
)
if copy_button:
return ShikiCodeBlock.create(
children[0], copy_button, position="relative", **props
)
else:
return ShikiCodeBlock.create(children[0], **props)
@staticmethod
def _map_themes(theme: str) -> str:
if isinstance(theme, str) and theme in THEME_MAPPING:
return THEME_MAPPING[theme]
return theme
@staticmethod
def _map_languages(language: str) -> str:
if isinstance(language, str) and language in LANGUAGE_MAPPING:
return LANGUAGE_MAPPING[language]
return language
@staticmethod
def _strip_transformer_triggers(code: str | StringVar) -> StringVar | str:
if not isinstance(code, (StringVar, str)):
raise VarTypeError(
f"code should be string literal or a StringVar type. Got {type(code)} instead."
)
regex_pattern = r"[\/#]+ *\[!code.*?\]"
if isinstance(code, Var):
return string_replace_operation(
code, StringVar(_js_expr=f"/{regex_pattern}/g", _var_type=str), ""
)
if isinstance(code, str):
return re.sub(regex_pattern, "", code)
class TransformerNamespace(ComponentNamespace):
"""Namespace for the Transformers."""
shikijs = ShikiJsTransformer
class CodeblockNamespace(ComponentNamespace):
"""Namespace for the CodeBlock component."""
root = staticmethod(ShikiCodeBlock.create)
create_transformer = staticmethod(ShikiCodeBlock.create_transformer)
transformers = TransformerNamespace()
__call__ = staticmethod(ShikiHighLevelCodeBlock.create)
code_block = CodeblockNamespace()

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@ -20,6 +20,8 @@ from reflex.components.tags.tag import Tag
from reflex.utils import types
from reflex.utils.imports import ImportDict, ImportVar
from reflex.vars.base import LiteralVar, Var
from reflex.vars.function import ARRAY_ISARRAY
from reflex.vars.number import ternary_operation
# Special vars used in the component map.
_CHILDREN = Var(_js_expr="children", _var_type=str)
@ -199,7 +201,16 @@ class Markdown(Component):
raise ValueError(f"No markdown component found for tag: {tag}.")
special_props = [_PROPS_IN_TAG]
children = [_CHILDREN]
children = [
_CHILDREN
if tag != "codeblock"
# For codeblock, the mapping for some cases returns an array of elements. Let's join them into a string.
else ternary_operation(
ARRAY_ISARRAY.call(_CHILDREN), # type: ignore
_CHILDREN.to(list).join("\n"),
_CHILDREN,
).to(str)
]
# For certain tags, the props from the markdown renderer are not actually valid for the component.
if tag in NO_PROPS_TAGS:

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@ -2,6 +2,7 @@
from types import SimpleNamespace
from reflex.components.datadisplay.shiki_code_block import code_block as code_block
from reflex.components.props import PropsBase
from reflex.components.radix.themes.components.progress import progress as progress
from reflex.components.sonner.toast import toast as toast
@ -67,4 +68,5 @@ _x = ExperimentalNamespace(
layout=layout,
PropsBase=PropsBase,
run_in_thread=run_in_thread,
code_block=code_block,
)

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@ -180,6 +180,7 @@ class ArgsFunctionOperation(CachedVarOperation, FunctionVar):
JSON_STRINGIFY = FunctionStringVar.create("JSON.stringify")
ARRAY_ISARRAY = FunctionStringVar.create("Array.isArray")
PROTOTYPE_TO_STRING = FunctionStringVar.create(
"((__to_string) => __to_string.toString())"
)

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@ -529,6 +529,26 @@ def array_join_operation(array: ArrayVar, sep: StringVar[Any] | str = ""):
return var_operation_return(js_expression=f"{array}.join({sep})", var_type=str)
@var_operation
def string_replace_operation(
string: StringVar, search_value: StringVar | str, new_value: StringVar | str
):
"""Replace a string with a value.
Args:
string: The string.
search_value: The string to search.
new_value: The value to be replaced with.
Returns:
The string replace operation.
"""
return var_operation_return(
js_expression=f"{string}.replace({search_value}, {new_value})",
var_type=str,
)
# Compile regex for finding reflex var tags.
_decode_var_pattern_re = (
rf"{constants.REFLEX_VAR_OPENING_TAG}(.*?){constants.REFLEX_VAR_CLOSING_TAG}"

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@ -0,0 +1,172 @@
import pytest
from reflex.components.datadisplay.shiki_code_block import (
ShikiBaseTransformers,
ShikiCodeBlock,
ShikiHighLevelCodeBlock,
ShikiJsTransformer,
)
from reflex.components.el.elements.forms import Button
from reflex.components.lucide.icon import Icon
from reflex.components.radix.themes.layout.box import Box
from reflex.style import Style
from reflex.vars import Var
@pytest.mark.parametrize(
"library, fns, expected_output, raises_exception",
[
("some_library", ["function_one"], ["function_one"], False),
("some_library", [123], None, True),
("some_library", [], [], False),
(
"some_library",
["function_one", "function_two"],
["function_one", "function_two"],
False,
),
("", ["function_one"], ["function_one"], False),
("some_library", ["function_one", 789], None, True),
("", [], [], False),
],
)
def test_create_transformer(library, fns, expected_output, raises_exception):
if raises_exception:
# Ensure ValueError is raised for invalid cases
with pytest.raises(ValueError):
ShikiCodeBlock.create_transformer(library, fns)
else:
transformer = ShikiCodeBlock.create_transformer(library, fns)
assert isinstance(transformer, ShikiBaseTransformers)
assert transformer.library == library
# Verify that the functions are correctly wrapped in FunctionStringVar
function_names = [str(fn) for fn in transformer.fns]
assert function_names == expected_output
@pytest.mark.parametrize(
"code_block, children, props, expected_first_child, expected_styles",
[
("print('Hello')", ["print('Hello')"], {}, "print('Hello')", {}),
(
"print('Hello')",
["print('Hello')", "More content"],
{},
"print('Hello')",
{},
),
(
"print('Hello')",
["print('Hello')"],
{
"transformers": [
ShikiBaseTransformers(
library="lib", fns=[], style=Style({"color": "red"})
)
]
},
"print('Hello')",
{"color": "red"},
),
(
"print('Hello')",
["print('Hello')"],
{
"transformers": [
ShikiBaseTransformers(
library="lib", fns=[], style=Style({"color": "red"})
)
],
"style": {"background": "blue"},
},
"print('Hello')",
{"color": "red", "background": "blue"},
),
],
)
def test_create_shiki_code_block(
code_block, children, props, expected_first_child, expected_styles
):
component = ShikiCodeBlock.create(code_block, *children, **props)
# Test that the created component is a Box
assert isinstance(component, Box)
# Test that the first child is the code
code_block_component = component.children[0]
assert code_block_component.code._var_value == expected_first_child # type: ignore
applied_styles = component.style
for key, value in expected_styles.items():
assert Var.create(applied_styles[key])._var_value == value
@pytest.mark.parametrize(
"children, props, expected_transformers, expected_button_type",
[
(["print('Hello')"], {"use_transformers": True}, [ShikiJsTransformer], None),
(["print('Hello')"], {"can_copy": True}, None, Button),
(
["print('Hello')"],
{
"can_copy": True,
"copy_button": Button.create(Icon.create(tag="a_arrow_down")),
},
None,
Button,
),
],
)
def test_create_shiki_high_level_code_block(
children, props, expected_transformers, expected_button_type
):
component = ShikiHighLevelCodeBlock.create(*children, **props)
# Test that the created component is a Box
assert isinstance(component, Box)
# Test that the first child is the code block component
code_block_component = component.children[0]
assert code_block_component.code._var_value == children[0] # type: ignore
# Check if the transformer is set correctly if expected
if expected_transformers:
exp_trans_names = [t.__name__ for t in expected_transformers]
for transformer in code_block_component.transformers._var_value: # type: ignore
assert type(transformer).__name__ in exp_trans_names
# Check if the second child is the copy button if can_copy is True
if props.get("can_copy", False):
if props.get("copy_button"):
assert isinstance(component.children[1], expected_button_type)
assert component.children[1] == props["copy_button"]
else:
assert isinstance(component.children[1], expected_button_type)
else:
assert len(component.children) == 1
@pytest.mark.parametrize(
"children, props",
[
(["print('Hello')"], {"theme": "dark"}),
(["print('Hello')"], {"language": "javascript"}),
],
)
def test_shiki_high_level_code_block_theme_language_mapping(children, props):
component = ShikiHighLevelCodeBlock.create(*children, **props)
# Test that the theme is mapped correctly
if "theme" in props:
assert component.children[
0
].theme._var_value == ShikiHighLevelCodeBlock._map_themes(props["theme"]) # type: ignore
# Test that the language is mapped correctly
if "language" in props:
assert component.children[
0
].language._var_value == ShikiHighLevelCodeBlock._map_languages( # type: ignore
props["language"]
)