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it("should produce an AST compatible with astring", function() {
var code = fs.readFileSync("test/input/spidermonkey/input.js", "utf-8");
var terser_ast = Terser.parse(code);
var moz_ast = terser_ast.to_mozilla_ast();
var generated = astring.generate(moz_ast);
var parsed = acorn.parse(generated, {
sourceType: "module",
ecmaVersion: 9
});
assert.strictEqual(
Terser.AST_Node.from_mozilla_ast(parsed).print_to_string(),
terser_ast.print_to_string()
);
});
});
case 'ArrayExpression':
if (!/@type\s.+/.test(evt.comment)) {
evt.comment = setCommentTag(evt.comment, 'type',
`{${typeNode.elements.map(n => ctorNameToType(n.name)).join('|')}}`)
}
break
case 'ObjectExpression':
let typePropNode = typeNode.properties.find(n => n.key.name === 'type')
let defaultPropNode = typeNode.properties.find(n => n.key.name === 'default')
let requiredPropNode = typeNode.properties.find(n => n.key.name === 'required')
if (!typePropNode) return
handle(typePropNode.value)
if (defaultPropNode && !/^\s*\*\s@default(?:value)?\s.*$/im.test(evt.comment)) {
evt.comment = setCommentTag(evt.comment, 'default', generate(defaultPropNode.value))
}
if (requiredPropNode) {
evt.comment = setCommentTag(evt.comment, 'required')
}
break
}
}
const provider: IProvider = {
raw: generate(node),
};
const mnemonicNode = node.arguments[0];
if (mnemonicNode && mnemonicNode.type === 'Literal') {
provider.mnemonic = '' + mnemonicNode.value;
}
const urlNode = node.arguments[1];
if (urlNode && urlNode.type === 'Literal') {
provider.url = '' + urlNode.value;
}
if (urlNode && urlNode.type !== 'Literal') {
provider.url = generate(urlNode);
}
return provider;
}
public writeAST(): void {
return fs.writeFileSync(this.filePath, generate(this.ast, { comments: true }));
}
public elaborate() {
return stripIndent`
This "if" block requires corresponding "else" block which will be
evaluated when ${generate(this.node.test)} expression evaluates to false.
Later in the course we will lift this restriction and allow "if" without
else.
`
}
}
export const toString = (value: Value, length = 0): string => {
if (value instanceof ArrowClosure || value instanceof Closure) {
return generate(value.node)
} else if (Array.isArray(value)) {
if (length > MAX_LIST_DISPLAY_LENGTH) {
return '...'
} else {
return arrayToString(value, length)
}
} else if (typeof value === 'string') {
return `\"${value}\"`
} else if (typeof value === 'undefined') {
return 'undefined'
} else if (typeof value === 'function') {
if (value.__SOURCE__) {
return `function ${value.__SOURCE__} {\n\t[implementation hidden]\n}`
} else {
return stripBody(value.toString())
}
CallExpression(node: any, state: any) {
state.write(generate(node.callee))
state.write('(')
const argsRepr = node.arguments.map((arg: any) => stringify(arg.value))
state.write(argsRepr.join(', '))
state.write(')')
}
}
function astToHDWalletProvider(node: ESTree.NewExpression): IProvider {
const provider: IProvider = {
raw: generate(node),
};
const mnemonicNode = node.arguments[0];
if (mnemonicNode && mnemonicNode.type === 'Literal') {
provider.mnemonic = '' + mnemonicNode.value;
}
const urlNode = node.arguments[1];
if (urlNode && urlNode.type === 'Literal') {
provider.url = '' + urlNode.value;
}
if (urlNode && urlNode.type !== 'Literal') {
provider.url = generate(urlNode);
}
function astToHDWalletProvider(node: ESTree.NewExpression): IProvider {
const provider: IProvider = {
raw: generate(node),
};
const mnemonicNode = node.arguments[0] as ESTree.NewExpression & ESTree.Literal;
const mnemonicFilePathNode = mnemonicNode && mnemonicNode.arguments && mnemonicNode.arguments[0] as ESTree.Literal;
if (isMnemonicNode(mnemonicNode)) {
provider.mnemonic = mnemonicNode.value as string;
} else if (isMnemonicNode(mnemonicFilePathNode)) {
provider.mnemonic = MnemonicRepository.getMnemonic(mnemonicFilePathNode.value as string);
}
const urlNode = node.arguments[1];
if (urlNode && urlNode.type === 'Literal') {
provider.url = '' + urlNode.value;
}