@nodesecure/js-x-ray/dist/Inlined.js

JavaScript AST XRay analysis

// Import Internal Dependencies
import { VirtualVariableIdentifier } from "./VirtualVariableIdentifier.js";
import { isCallExpression, isMemberExpression } from "./estree/index.js";
export class Inlined {
    static buildSplitResult(node, target, identifier) {
        const virtualIdentifier = VirtualVariableIdentifier.generate(identifier, node.loc);
        return {
            virtualIdentifier,
            virtualDeclaration: {
                type: "VariableDeclaration",
                kind: "const",
                declarations: [
                    {
                        type: "VariableDeclarator",
                        id: {
                            type: "Identifier",
                            name: virtualIdentifier
                        },
                        init: target
                    }
                ]
            },
            rebuildExpression: Inlined.#rebuildWithVirtualIdentifier(node, target, virtualIdentifier)
        };
    }
    static #rebuildWithVirtualIdentifier(node, target, virtualIdentifier) {
        if (node === target) {
            return null;
        }
        const virtualId = {
            type: "Identifier",
            name: virtualIdentifier
        };
        return Inlined.#cloneAndReplace(node, target, virtualId);
    }
    static #cloneAndReplace(node, target, replacement) {
        if (node === target) {
            return replacement;
        }
        if (isCallExpression(node)) {
            const callee = Inlined.#cloneAndReplace(node.callee, target, replacement);
            const args = node.arguments.map((arg) => Inlined.#cloneAndReplace(arg, target, replacement));
            return {
                ...node,
                callee,
                arguments: args
            };
        }
        if (isMemberExpression(node)) {
            return {
                ...node,
                object: Inlined.#cloneAndReplace(node.object, target, replacement)
            };
        }
        return node;
    }
}
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