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979bf48 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
0 && (module.exports = {
NoSuchDeclarationError: null,
UnsupportedValueError: null,
extractExportedConstValue: null
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
NoSuchDeclarationError: function() {
return NoSuchDeclarationError;
},
UnsupportedValueError: function() {
return UnsupportedValueError;
},
extractExportedConstValue: function() {
return extractExportedConstValue;
}
});
class NoSuchDeclarationError extends Error {
}
function isExportDeclaration(node) {
return node.type === 'ExportDeclaration';
}
function isVariableDeclaration(node) {
return node.type === 'VariableDeclaration';
}
function isIdentifier(node) {
return node.type === 'Identifier';
}
function isBooleanLiteral(node) {
return node.type === 'BooleanLiteral';
}
function isNullLiteral(node) {
return node.type === 'NullLiteral';
}
function isStringLiteral(node) {
return node.type === 'StringLiteral';
}
function isNumericLiteral(node) {
return node.type === 'NumericLiteral';
}
function isArrayExpression(node) {
return node.type === 'ArrayExpression';
}
function isObjectExpression(node) {
return node.type === 'ObjectExpression';
}
function isKeyValueProperty(node) {
return node.type === 'KeyValueProperty';
}
function isRegExpLiteral(node) {
return node.type === 'RegExpLiteral';
}
function isTemplateLiteral(node) {
return node.type === 'TemplateLiteral';
}
function isTsSatisfiesExpression(node) {
return node.type === 'TsSatisfiesExpression';
}
class UnsupportedValueError extends Error {
constructor(message, paths){
super(message);
// Generating "path" that looks like "config.runtime[0].value"
let codePath;
if (paths) {
codePath = '';
for (const path of paths){
if (path[0] === '[') {
// "array" + "[0]"
codePath += path;
} else {
if (codePath === '') {
codePath = path;
} else {
// "object" + ".key"
codePath += `.${path}`;
}
}
}
}
this.path = codePath;
}
}
function extractValue(node, path) {
if (isNullLiteral(node)) {
return null;
} else if (isBooleanLiteral(node)) {
// e.g. true / false
return node.value;
} else if (isStringLiteral(node)) {
// e.g. "abc"
return node.value;
} else if (isNumericLiteral(node)) {
// e.g. 123
return node.value;
} else if (isRegExpLiteral(node)) {
// e.g. /abc/i
return new RegExp(node.pattern, node.flags);
} else if (isIdentifier(node)) {
switch(node.value){
case 'undefined':
return undefined;
default:
throw new UnsupportedValueError(`Unknown identifier "${node.value}"`, path);
}
} else if (isArrayExpression(node)) {
// e.g. [1, 2, 3]
const arr = [];
for(let i = 0, len = node.elements.length; i < len; i++){
const elem = node.elements[i];
if (elem) {
if (elem.spread) {
// e.g. [ ...a ]
throw new UnsupportedValueError('Unsupported spread operator in the Array Expression', path);
}
arr.push(extractValue(elem.expression, path && [
...path,
`[${i}]`
]));
} else {
// e.g. [1, , 2]
// ^^
arr.push(undefined);
}
}
return arr;
} else if (isObjectExpression(node)) {
// e.g. { a: 1, b: 2 }
const obj = {};
for (const prop of node.properties){
if (!isKeyValueProperty(prop)) {
// e.g. { ...a }
throw new UnsupportedValueError('Unsupported spread operator in the Object Expression', path);
}
let key;
if (isIdentifier(prop.key)) {
// e.g. { a: 1, b: 2 }
key = prop.key.value;
} else if (isStringLiteral(prop.key)) {
// e.g. { "a": 1, "b": 2 }
key = prop.key.value;
} else {
throw new UnsupportedValueError(`Unsupported key type "${prop.key.type}" in the Object Expression`, path);
}
obj[key] = extractValue(prop.value, path && [
...path,
key
]);
}
return obj;
} else if (isTemplateLiteral(node)) {
// e.g. `abc`
if (node.expressions.length !== 0) {
// TODO: should we add support for `${'e'}d${'g'}'e'`?
throw new UnsupportedValueError('Unsupported template literal with expressions', path);
}
// When TemplateLiteral has 0 expressions, the length of quasis is always 1.
// Because when parsing TemplateLiteral, the parser yields the first quasi,
// then the first expression, then the next quasi, then the next expression, etc.,
// until the last quasi.
// Thus if there is no expression, the parser ends at the frst and also last quasis
//
// A "cooked" interpretation where backslashes have special meaning, while a
// "raw" interpretation where backslashes do not have special meaning
// https://exploringjs.com/impatient-js/ch_template-literals.html#template-strings-cooked-vs-raw
const [{ cooked, raw }] = node.quasis;
return cooked ?? raw;
} else if (isTsSatisfiesExpression(node)) {
return extractValue(node.expression);
} else {
throw new UnsupportedValueError(`Unsupported node type "${node.type}"`, path);
}
}
function extractExportedConstValue(module1, exportedName) {
for (const moduleItem of module1.body){
if (!isExportDeclaration(moduleItem)) {
continue;
}
const declaration = moduleItem.declaration;
if (!isVariableDeclaration(declaration)) {
continue;
}
if (declaration.kind !== 'const') {
continue;
}
for (const decl of declaration.declarations){
if (isIdentifier(decl.id) && decl.id.value === exportedName && decl.init) {
return extractValue(decl.init, [
exportedName
]);
}
}
}
throw new NoSuchDeclarationError();
}
//# sourceMappingURL=extract-const-value.js.map |