wg-backend-django/dell-env/lib/python3.11/site-packages/dash/extract-meta.js

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2023-10-30 03:40:43 -04:00
#!/usr/bin/env node
if (process.env.MODULES_PATH) {
module.paths.push(process.env.MODULES_PATH);
}
let ts,
tsEnabled = true;
try {
ts = require('typescript');
} catch (e) {
ts = {};
tsEnabled = false;
}
const fs = require('fs');
const path = require('path');
const reactDocs = require('react-docgen');
const args = process.argv.slice(2);
const src = args.slice(2);
const ignorePattern = args[0] ? new RegExp(args[0]) : null;
const reservedPatterns = args[1]
? args[1].split('|').map(part => new RegExp(part))
: [];
let tsconfig = {};
function help() {
console.error('usage: ');
console.error(
'extract-meta ^fileIgnorePattern ^forbidden$|^props$|^patterns$' +
' path/to/component(s) [path/to/more/component(s) ...] > metadata.json'
);
}
if (!src.length) {
help();
process.exit(1);
}
if (fs.existsSync('tsconfig.json')) {
tsconfig = JSON.parse(fs.readFileSync('tsconfig.json')).compilerOptions;
// Map moduleResolution to the appropriate enum.
switch (tsconfig.moduleResolution) {
case 'node':
tsconfig.moduleResolution = ts.ModuleResolutionKind.NodeJs;
break;
case 'node16':
tsconfig.moduleResolution = ts.ModuleResolutionKind.Node16;
break;
case 'nodenext':
tsconfig.moduleResolution = ts.ModuleResolutionKind.NodeNext;
break;
case 'classic':
tsconfig.moduleResolution = ts.ModuleResolutionKind.Classic;
break;
default:
break;
}
}
let failedBuild = false;
const excludedDocProps = ['setProps', 'id', 'className', 'style'];
const isOptional = prop => (prop.getFlags() & ts.SymbolFlags.Optional) !== 0;
const PRIMITIVES = [
'string',
'number',
'bool',
'any',
'array',
'object',
'node'
];
// These types take too long to parse because of heavy nesting.
const BANNED_TYPES = [
'Document',
'ShadowRoot',
'ChildNode',
'ParentNode',
];
const unionSupport = PRIMITIVES.concat('boolean', 'Element');
const reArray = new RegExp(`(${unionSupport.join('|')})\\[\\]`);
const isArray = rawType => reArray.test(rawType);
const isUnionLiteral = typeObj =>
typeObj.types.every(
t =>
t.getFlags() &
(ts.TypeFlags.StringLiteral |
ts.TypeFlags.NumberLiteral |
ts.TypeFlags.EnumLiteral |
ts.TypeFlags.Undefined)
);
function logError(error, filePath) {
if (filePath) {
process.stderr.write(`Error with path ${filePath}`);
}
process.stderr.write(error + '\n');
if (error instanceof Error) {
process.stderr.write(error.stack + '\n');
}
}
function isReservedPropName(propName) {
reservedPatterns.forEach(reservedPattern => {
if (reservedPattern.test(propName)) {
process.stderr.write(
`\nERROR: "${propName}" matches reserved word ` +
`pattern: ${reservedPattern.toString()}\n`
);
failedBuild = true;
}
});
return failedBuild;
}
function checkDocstring(name, value) {
if (
!value ||
(value.length < 1 && !excludedDocProps.includes(name.split('.').pop()))
) {
logError(`\nDescription for ${name} is missing!`);
}
}
function docstringWarning(doc) {
checkDocstring(doc.displayName, doc.description);
Object.entries(doc.props || {}).forEach(([name, p]) =>
checkDocstring(`${doc.displayName}.${name}`, p.description)
);
}
function zipArrays(...arrays) {
const arr = [];
for (let i = 0; i <= arrays[0].length - 1; i++) {
arr.push(arrays.map(a => a[i]));
}
return arr;
}
function cleanPath(filepath) {
return filepath.split(path.sep).join('/');
}
function parseJSX(filepath) {
try {
const src = fs.readFileSync(filepath);
const doc = reactDocs.parse(src);
Object.keys(doc.props).forEach(propName =>
isReservedPropName(propName)
);
docstringWarning(doc);
return doc;
} catch (error) {
logError(error);
}
}
function gatherComponents(sources, components = {}) {
const names = [];
const filepaths = [];
const gather = filepath => {
if (ignorePattern && ignorePattern.test(filepath)) {
return;
}
const extension = path.extname(filepath);
if (['.jsx', '.js'].includes(extension)) {
components[cleanPath(filepath)] = parseJSX(filepath);
} else if (filepath.endsWith('.tsx')) {
try {
const name = /(.*)\.tsx/.exec(path.basename(filepath))[1];
filepaths.push(filepath);
names.push(name);
} catch (err) {
process.stderr.write(
`ERROR: Invalid component file ${filepath}: ${err}`
);
}
}
};
sources.forEach(sourcePath => {
if (fs.lstatSync(sourcePath).isDirectory()) {
fs.readdirSync(sourcePath).forEach(f => {
const filepath = path.join(sourcePath, f);
if (fs.lstatSync(filepath).isDirectory()) {
gatherComponents([filepath], components);
} else {
gather(filepath);
}
});
} else {
gather(sourcePath);
}
});
if (!tsEnabled) {
return components;
}
const program = ts.createProgram(filepaths, {...tsconfig, esModuleInterop: true});
const checker = program.getTypeChecker();
const coerceValue = t => {
// May need to improve for shaped/list literals.
if (t.isStringLiteral()) return `'${t.value}'`;
return t.value;
};
const getComponentFromExport = exp => {
const decl = exp.valueDeclaration || exp.declarations[0];
const type = checker.getTypeOfSymbolAtLocation(exp, decl);
const typeSymbol = type.symbol || type.aliasSymbol;
if (!typeSymbol) {
return exp;
}
const symbolName = typeSymbol.getName();
if (
(symbolName === 'MemoExoticComponent' ||
symbolName === 'ForwardRefExoticComponent') &&
exp.valueDeclaration &&
ts.isExportAssignment(exp.valueDeclaration) &&
ts.isCallExpression(exp.valueDeclaration.expression)
) {
const component = checker.getSymbolAtLocation(
exp.valueDeclaration.expression.arguments[0]
);
if (component) return component;
}
return exp;
};
const getParent = node => {
let parent = node;
while (parent.parent) {
if (parent.parent.kind === ts.SyntaxKind.SourceFile) {
// We want the parent before the source file.
break;
}
parent = parent.parent;
}
return parent;
};
const getEnum = typeObj => ({
name: 'enum',
value: typeObj.types.map(t => ({
value: coerceValue(t),
computed: false
}))
});
const getUnion = (typeObj, propObj, parentType) => {
let name = 'union',
value;
// Union only do base types
value = typeObj.types
.filter(t => {
let typeName = t.intrinsicName;
if (!typeName) {
if (t.members) {
typeName = 'object';
}
}
return (
unionSupport.includes(typeName) ||
isArray(checker.typeToString(t))
);
})
.map(t => getPropType(t, propObj, parentType));
if (!value.length) {
name = 'any';
value = undefined;
}
return {
name,
value
};
};
const getPropTypeName = propName => {
if (propName.includes('=>') || propName === 'Function') {
return 'func';
} else if (propName === 'boolean') {
return 'bool';
} else if (propName === '[]') {
return 'array';
} else if (
propName === 'Element' ||
propName === 'ReactNode' ||
propName === 'ReactElement'
) {
return 'node';
}
return propName;
};
const getPropType = (propType, propObj, parentType = null) => {
// Types can get namespace prefixes or not.
let name = checker.typeToString(propType).replace(/^React\./, '');
let value, elements;
const raw = name;
const newParentType = (parentType || []).concat(raw)
if (propType.isUnion()) {
if (isUnionLiteral(propType)) {
return {...getEnum(propType), raw};
} else if (raw.includes('|')) {
return {...getUnion(propType, propObj, newParentType), raw};
}
}
name = getPropTypeName(name);
// Shapes & array support.
if (!PRIMITIVES.concat('enum', 'func', 'union').includes(name)) {
if (
// Excluding object with arrays in the raw.
(name.includes('[]') && name.endsWith("]")) ||
name.includes('Array')
) {
name = 'arrayOf';
const replaced = raw.replace('[]', '');
if (unionSupport.includes(replaced)) {
// Simple types are easier.
value = {
name: getPropTypeName(replaced),
raw: replaced
};
} else {
// Complex types get the type parameter (Array<type>)
const [nodeType] = checker.getTypeArguments(propType);
if (nodeType) {
value = getPropType(
nodeType, propObj, newParentType,
);
} else {
// Not sure, might be unsupported here.
name = 'array';
}
}
} else if (
name === 'tuple' ||
(name.startsWith('[') && name.endsWith(']'))
) {
name = 'tuple';
elements = propType.resolvedTypeArguments.map(
t => getPropType(t, propObj, newParentType)
);
} else if (
BANNED_TYPES.includes(name) ||
(parentType && parentType.includes(name))
) {
console.error(`Warning nested type: ${name}`);
name = 'any';
} else {
name = 'shape';
// If the type is declared as union it will have a types attribute.
if (propType.types && propType.types.length) {
if (isUnionLiteral(propType)) {
return {...getEnum(propType), raw};
}
return {
...getUnion(propType, propObj, newParentType),
raw
};
} else if (propType.indexInfos && propType.indexInfos.length) {
const {type} = propType.indexInfos[0];
name = 'objectOf';
value = getPropType(type, propObj, newParentType);
} else {
value = getProps(
checker.getPropertiesOfType(propType),
propObj,
[],
{},
true,
newParentType,
);
}
}
}
return {
name,
value,
elements,
raw
};
};
const getDefaultProps = (symbol, source) => {
const statements = source.statements.filter(
stmt =>
(!!stmt.name &&
checker.getSymbolAtLocation(stmt.name) === symbol) ||
ts.isExpressionStatement(stmt) ||
ts.isVariableStatement(stmt)
);
return statements.reduce((acc, statement) => {
let propMap = {};
statement.getChildren().forEach(child => {
let {right} = child;
if (right && ts.isIdentifier(right)) {
const value = source.locals.get(right.escapedText);
if (
value &&
value.valueDeclaration &&
ts.isVariableDeclaration(value.valueDeclaration) &&
value.valueDeclaration.initializer
) {
right = value.valueDeclaration.initializer;
}
}
if (right) {
const {properties} = right;
if (properties) {
propMap = getDefaultPropsValues(properties);
}
}
});
return {
...acc,
...propMap
};
}, {});
};
const getPropComment = symbol => {
// Doesn't work too good with the JsDocTags losing indentation.
// But used only in props should be fine.
const comment = symbol.getDocumentationComment();
const tags = symbol.getJsDocTags();
if (comment && comment.length) {
return comment
.map(c => c.text)
.concat(
tags.map(t =>
['@', t.name].concat((t.text || []).map(e => e.text))
)
)
.join('\n');
}
return '';
};
const getPropsForFunctionalComponent = type => {
const callSignatures = type.getCallSignatures();
for (const sig of callSignatures) {
const params = sig.getParameters();
if (params.length === 0) {
continue;
}
// There is only one parameter for functional components: props
const p = params[0];
if (p.name === 'props' || params.length === 1) {
return p;
}
}
return null;
};
const getPropsForClassComponent = (typeSymbol, source, defaultProps) => {
const childs = source.getChildAt(0);
let stop;
for (let i = 0, n = childs.getChildCount(); i < n && !stop; i++) {
const c = childs.getChildAt(i);
if (!ts.isClassDeclaration(c)) continue;
if (!c.heritageClauses) continue;
for (const clause of c.heritageClauses) {
if (clause.token !== ts.SyntaxKind.ExtendsKeyword) continue;
const t = clause.types[0];
const propType = t.typeArguments[0];
const type = checker.getTypeFromTypeNode(propType);
return getProps(
type.getProperties(),
typeSymbol,
[],
defaultProps
);
}
}
};
const getDefaultPropsValues = properties =>
properties.reduce((acc, p) => {
if (!p.name || !p.initializer) {
return acc;
}
let propName, value;
switch (p.name.kind) {
case ts.SyntaxKind.NumericLiteral:
case ts.SyntaxKind.StringLiteral:
case ts.SyntaxKind.Identifier:
propName = p.name.text;
break;
case ts.SyntaxKind.ComputedPropertyName:
propName = p.name.getText();
break;
}
const {initializer} = p;
switch (initializer.kind) {
case ts.SyntaxKind.StringLiteral:
value = `'${initializer.text}'`;
break;
case ts.SyntaxKind.NumericLiteral:
value = initializer.text;
break;
case ts.SyntaxKind.NullKeyword:
value = 'null';
break;
case ts.SyntaxKind.FalseKeyword:
value = 'false';
break;
case ts.SyntaxKind.TrueKeyword:
value = 'true';
break;
default:
try {
value = initializer.getText();
} catch (e) {
value = undefined;
}
}
acc[propName] = {value, computed: false};
return acc;
}, {});
const getDefaultPropsForClassComponent = (type, source) => {
// For class component, the type has its own property, then get the
// first declaration and one of them will be either
// an ObjectLiteralExpression or an Identifier which get in the
// newChild with the proper props.
const defaultProps = type.getProperty('defaultProps');
if (!defaultProps) {
return {};
}
const decl = defaultProps.getDeclarations()[0];
let propValues = {};
decl.getChildren().forEach(child => {
let newChild = child;
if (ts.isIdentifier(child)) {
// There should be two identifier, the first is ignored.
const value = source.locals.get(child.escapedText);
if (
value &&
value.valueDeclaration &&
ts.isVariableDeclaration(value.valueDeclaration) &&
value.valueDeclaration.initializer
) {
newChild = value.valueDeclaration.initializer;
}
}
const {properties} = newChild;
if (properties) {
propValues = getDefaultPropsValues(properties);
}
});
return propValues;
};
const getProps = (
properties,
propsObj,
baseProps = [],
defaultProps = {},
flat = false,
parentType = null,
) => {
const results = {};
properties.forEach(prop => {
const name = prop.getName();
if (isReservedPropName(name)) {
return;
}
const propType = checker.getTypeOfSymbolAtLocation(
prop,
propsObj.valueDeclaration
);
const baseProp = baseProps.find(p => p.getName() === name);
const defaultValue = defaultProps[name];
const required =
!isOptional(prop) &&
(!baseProp || !isOptional(baseProp)) &&
defaultValue === undefined;
const description = getPropComment(prop);
let result = {
description,
required,
defaultValue
};
const type = getPropType(propType, propsObj, parentType);
// root object is inserted as type,
// otherwise it's flat in the value prop.
if (!flat) {
result.type = type;
} else {
result = {...result, ...type};
}
results[name] = result;
});
return results;
};
const getPropInfo = (propsObj, defaultProps) => {
const propsType = checker.getTypeOfSymbolAtLocation(
propsObj,
propsObj.valueDeclaration
);
const baseProps = propsType.getApparentProperties();
let propertiesOfProps = baseProps;
if (propsType.isUnionOrIntersection()) {
propertiesOfProps = [
...checker.getAllPossiblePropertiesOfTypes(propsType.types),
...baseProps
];
if (!propertiesOfProps.length) {
const subTypes = checker.getAllPossiblePropertiesOfTypes(
propsType.types.reduce(
(all, t) => [...all, ...(t.types || [])],
[]
)
);
propertiesOfProps = [...subTypes, ...baseProps];
}
}
return getProps(propertiesOfProps, propsObj, baseProps, defaultProps);
};
zipArrays(filepaths, names).forEach(([filepath, name]) => {
const source = program.getSourceFile(filepath);
const moduleSymbol = checker.getSymbolAtLocation(source);
const exports = checker.getExportsOfModule(moduleSymbol);
exports.forEach(exp => {
let rootExp = getComponentFromExport(exp);
const declaration =
rootExp.valueDeclaration || rootExp.declarations[0];
const type = checker.getTypeOfSymbolAtLocation(
rootExp,
declaration
);
let commentSource = rootExp;
const typeSymbol = type.symbol || type.aliasSymbol;
const originalName = rootExp.getName();
if (!rootExp.valueDeclaration) {
if (
originalName === 'default' &&
!typeSymbol &&
(rootExp.flags & ts.SymbolFlags.Alias) !== 0
) {
// Some type of Exotic?
commentSource =
checker.getAliasedSymbol(
commentSource
).valueDeclaration;
} else if (!typeSymbol) {
// Invalid component
return null;
} else {
// Function components.
rootExp = typeSymbol;
commentSource = rootExp.valueDeclaration || rootExp.declarations[0];
if (
commentSource &&
commentSource.parent
) {
// Function with export later like `const MyComponent = (props) => <></>;`
commentSource = getParent(
commentSource.parent
);
}
}
} else if (
type.symbol &&
(ts.isPropertyAccessExpression(declaration) ||
ts.isPropertyDeclaration(declaration))
) {
commentSource = type.symbol.declarations[0];
}
if (commentSource.valueDeclaration) {
commentSource = commentSource.valueDeclaration; // class components
if (
commentSource.parent &&
commentSource.parent.kind !== ts.SyntaxKind.SourceFile
) {
// Memo components
commentSource = commentSource.parent;
}
}
let defaultProps = getDefaultProps(typeSymbol, source);
const propsType = getPropsForFunctionalComponent(type);
const isContext = !!type.getProperty('isContext');
let props;
if (propsType) {
props = getPropInfo(propsType, defaultProps);
} else {
defaultProps = getDefaultPropsForClassComponent(type, source);
props = getPropsForClassComponent(
typeSymbol,
source,
defaultProps
);
}
if (!props) {
// Ensure empty components has props.
props = {};
}
const fullText = source.getFullText();
let description = '';
const commentRanges = ts.getLeadingCommentRanges(
fullText,
commentSource.getFullStart()
);
if (commentRanges && commentRanges.length) {
description = commentRanges
.map(r =>
fullText
.slice(r.pos + 4, r.end - 3)
.split('\n')
.map(s => s.slice(3, s.length))
.filter(e => e)
.join('\n')
)
.join('');
}
const doc = {
displayName: name,
description,
props,
isContext
};
docstringWarning(doc);
components[cleanPath(filepath)] = doc;
});
});
return components;
}
const metadata = gatherComponents(Array.isArray(src) ? src : [src]);
if (!failedBuild) {
process.stdout.write(JSON.stringify(metadata, null, 2));
} else {
logError('extract-meta failed');
process.exit(1);
}