Split out pure functions and types into utils

This commit is contained in:
James Stuckey Weber 2023-06-09 16:59:45 +00:00
parent f24b37d02d
commit db21395639
3 changed files with 156 additions and 141 deletions

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@ -1,60 +1,18 @@
import { Diagnostic, setDiagnostics } from '@codemirror/lint';
import { setDiagnostics } from '@codemirror/lint';
import { Text } from '@codemirror/state';
import { EditorView } from 'codemirror';
import debounce from 'lodash.debounce';
import {
compileString,
Exception,
Logger,
OutputStyle,
SourceSpan,
Syntax,
} from 'sass';
import { compileString, Logger, OutputStyle, Syntax } from 'sass';
import { displayForConsoleLog } from './playground/console-utils.js';
import { editorSetup, outputSetup } from './playground/editor-setup.js';
type ConsoleLogDebug = {
options: {
span: SourceSpan;
};
message: string;
type: 'debug';
};
type ConsoleLogWarning = {
options: {
deprecation: boolean;
span?: SourceSpan | undefined;
stack?: string | undefined;
};
message: string;
type: 'warn';
};
type ConsoleLogError = {
type: 'error';
error: Exception | unknown;
};
type ConsoleLog = ConsoleLogDebug | ConsoleLogWarning | ConsoleLogError;
type PlaygroundState = {
inputFormat: Syntax;
outputFormat: OutputStyle;
inputValue: string;
compilerHasError: boolean;
debugOutput: ConsoleLog[];
};
/**
* Encode the HTML in a user-submitted string to print safely using innerHTML
* Adapted from https://vanillajstoolkit.com/helpers/encodehtml/
* @param {string} str The user-submitted string
* @return {string} The sanitized string
*/
function encodeHTML(str: string): string {
return str.replace(/[^\w-_. ]/gi, function (c) {
return `&#${c.charCodeAt(0)};`;
});
}
import {
base64ToState,
errorToDiagnostic,
ParseResult,
PlaygroundState,
stateToBase64,
} from './playground/utils.js';
function setupPlayground() {
const hashState = base64ToState(location.hash);
@ -67,6 +25,7 @@ function setupPlayground() {
debugOutput: [],
};
// Proxy intercepts setters and triggers side effects
const playgroundState = new Proxy(initialState, {
set(state: PlaygroundState, prop: keyof PlaygroundState, ...rest) {
// Set state first so called functions have access
@ -86,6 +45,7 @@ function setupPlayground() {
},
});
// Setup input sass view
const editor = new EditorView({
doc: playgroundState.inputValue,
extensions: [
@ -122,6 +82,7 @@ function setupPlayground() {
setting: 'outputFormat';
};
function attachListeners() {
// Settings buttons handlers
function clickHandler(event: Event) {
if (event.currentTarget instanceof HTMLElement) {
const settings = event.currentTarget.dataset as TabbarItemDataset;
@ -137,6 +98,7 @@ function setupPlayground() {
option.addEventListener('click', clickHandler);
});
// Copy URL handlers
const copyURLButton = document.getElementById('playground-copy-url');
const copiedAlert = document.getElementById('playground-copied-alert');
@ -181,6 +143,13 @@ function setupPlayground() {
playgroundState.compilerHasError.toString();
}
/**
* updateDebugOutput
* Applies debug output state
* Called at end of updateCSS, and not by a debugOutput setter
* debugOutput may be updated multiple times during the sass compilation,
* so the output is collected through the compilation and the display updated just once.
*/
function updateDebugOutput() {
const console = document.querySelector('.console') as HTMLDivElement;
console.innerHTML = playgroundState.debugOutput
@ -188,45 +157,6 @@ function setupPlayground() {
.join('\n');
}
function lineNumberFormatter(number?: number): string {
if (typeof number === 'undefined') return '';
number = number + 1;
return `${number} `;
}
function displayForConsoleLog(item: ConsoleLog): string {
const data: { type: string; lineNumber?: number; message: string } = {
type: item.type,
lineNumber: undefined,
message: '',
};
if (item.type === 'error') {
if (item.error instanceof Exception) {
data.lineNumber = item.error.span.start.line;
}
data.message = item.error?.toString() || '';
} else if (['debug', 'warn'].includes(item.type)) {
data.message = item.message;
let lineNumber = item.options.span?.start?.line;
if (typeof lineNumber === 'undefined') {
const stack = 'stack' in item.options ? item.options.stack : '';
const needleFromStackRegex = /^- (\d+):/;
const match = stack?.match(needleFromStackRegex);
if (match && match[1]) {
// Stack trace starts at 1, all others come from span, which starts at 0, so adjust before formatting.
lineNumber = parseInt(match[1]) - 1;
}
}
data.lineNumber = lineNumber;
}
return `<p><span class="console-type console-type-${data.type}">@${
data.type
}</span>:${lineNumberFormatter(data.lineNumber)} ${encodeHTML(
data.message,
)}</p>`;
}
function updateCSS() {
playgroundState.debugOutput = [];
const result = parse(playgroundState.inputValue);
@ -270,10 +200,6 @@ function setupPlayground() {
},
};
type ParseResultSuccess = { css: string };
type ParseResultError = { error: Exception | unknown };
type ParseResult = ParseResultSuccess | ParseResultError;
function parse(css: string): ParseResult {
try {
const result = compileString(css, {
@ -287,57 +213,11 @@ function setupPlayground() {
}
}
function errorToDiagnostic(error: Exception | unknown): Diagnostic {
if (error instanceof Exception) {
return {
from: error.span.start.offset,
to: error.span.end.offset,
severity: 'error',
message: error.toString(),
};
} else {
let errorString = 'Unknown compilation error';
if (typeof error === 'string') errorString = error;
else if (typeof error?.toString() === 'string')
errorString = error.toString();
return {
from: 0,
to: 0,
severity: 'error',
message: errorString,
};
}
}
function updateURL() {
const hash = stateToBase64(playgroundState);
history.replaceState('playground', '', `#${hash}`);
}
// State is persisted to the URL's hash format in the following format:
// [inputFormat, outputFormat, ...inputValue] = hash;
// inputFormat: 0=indented 1=scss
// outputFormat: 0=compressed 1=expanded
function stateToBase64(state: PlaygroundState): string {
const inputFormatChar = state.inputFormat === 'scss' ? 1 : 0;
const outputFormatChar = state.outputFormat === 'expanded' ? 1 : 0;
const persistedState = `${inputFormatChar}${outputFormatChar}${state.inputValue}`;
return btoa(encodeURIComponent(persistedState));
}
function base64ToState(string: string): Partial<PlaygroundState> {
const state: Partial<PlaygroundState> = {};
// Remove hash
const decoded = decodeURIComponent(atob(string.slice(1)));
if (!/\d\d.*/.test(decoded)) return {};
state.inputFormat = decoded.charAt(0) === '1' ? 'scss' : 'indented';
state.outputFormat = decoded.charAt(1) === '1' ? 'expanded' : 'compressed';
state.inputValue = decoded.slice(2);
return state;
}
attachListeners();
applyInitialState();
}

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@ -0,0 +1,74 @@
import { Exception, SourceSpan } from 'sass';
type ConsoleLogDebug = {
options: {
span: SourceSpan;
};
message: string;
type: 'debug';
};
type ConsoleLogWarning = {
options: {
deprecation: boolean;
span?: SourceSpan | undefined;
stack?: string | undefined;
};
message: string;
type: 'warn';
};
type ConsoleLogError = {
type: 'error';
error: Exception | unknown;
};
export type ConsoleLog = ConsoleLogDebug | ConsoleLogWarning | ConsoleLogError;
/**
* Encode the HTML in a user-submitted string to print safely using innerHTML
* Adapted from https://vanillajstoolkit.com/helpers/encodehtml/
* @param {string} str The user-submitted string
* @return {string} The sanitized string
*/
function encodeHTML(str: string): string {
return str.replace(/[^\w-_. ]/gi, function (c) {
return `&#${c.charCodeAt(0)};`;
});
}
function lineNumberFormatter(number?: number): string {
if (typeof number === 'undefined') return '';
number = number + 1;
return `${number} `;
}
export function displayForConsoleLog(item: ConsoleLog): string {
const data: { type: string; lineNumber?: number; message: string } = {
type: item.type,
lineNumber: undefined,
message: '',
};
if (item.type === 'error') {
if (item.error instanceof Exception) {
data.lineNumber = item.error.span.start.line;
}
data.message = item.error?.toString() || '';
} else if (['debug', 'warn'].includes(item.type)) {
data.message = item.message;
let lineNumber = item.options.span?.start?.line;
if (typeof lineNumber === 'undefined') {
const stack = 'stack' in item.options ? item.options.stack : '';
const needleFromStackRegex = /^- (\d+):/;
const match = stack?.match(needleFromStackRegex);
if (match && match[1]) {
// Stack trace starts at 1, all others come from span, which starts at 0, so adjust before formatting.
lineNumber = parseInt(match[1]) - 1;
}
}
data.lineNumber = lineNumber;
}
return `<p><span class="console-type console-type-${data.type}">@${
data.type
}</span>:${lineNumberFormatter(data.lineNumber)} ${encodeHTML(
data.message,
)}</p>`;
}

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@ -0,0 +1,61 @@
import { Diagnostic } from '@codemirror/lint';
import { Exception, OutputStyle, Syntax } from 'sass';
import { ConsoleLog } from './console-utils';
export type PlaygroundState = {
inputFormat: Syntax;
outputFormat: OutputStyle;
inputValue: string;
compilerHasError: boolean;
debugOutput: ConsoleLog[];
};
// State is persisted to the URL's hash format in the following format:
// [inputFormat, outputFormat, ...inputValue] = hash;
// inputFormat: 0=indented 1=scss
// outputFormat: 0=compressed 1=expanded
export function stateToBase64(state: PlaygroundState): string {
const inputFormatChar = state.inputFormat === 'scss' ? 1 : 0;
const outputFormatChar = state.outputFormat === 'expanded' ? 1 : 0;
const persistedState = `${inputFormatChar}${outputFormatChar}${state.inputValue}`;
return btoa(encodeURIComponent(persistedState));
}
export function base64ToState(string: string): Partial<PlaygroundState> {
const state: Partial<PlaygroundState> = {};
// Remove hash
const decoded = decodeURIComponent(atob(string.slice(1)));
if (!/\d\d.*/.test(decoded)) return {};
state.inputFormat = decoded.charAt(0) === '1' ? 'scss' : 'indented';
state.outputFormat = decoded.charAt(1) === '1' ? 'expanded' : 'compressed';
state.inputValue = decoded.slice(2);
return state;
}
type ParseResultSuccess = { css: string };
type ParseResultError = { error: Exception | unknown };
export type ParseResult = ParseResultSuccess | ParseResultError;
export function errorToDiagnostic(error: Exception | unknown): Diagnostic {
if (error instanceof Exception) {
return {
from: error.span.start.offset,
to: error.span.end.offset,
severity: 'error',
message: error.toString(),
};
} else {
let errorString = 'Unknown compilation error';
if (typeof error === 'string') errorString = error;
else if (typeof error?.toString() === 'string')
errorString = error.toString();
return {
from: 0,
to: 0,
severity: 'error',
message: errorString,
};
}
}