ts-simple-ast/dist/manipulation/tree/nodeHandlers/StraightReplacementNodeHandler.js

TypeScript compiler wrapper for AST navigation and code generation.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const errors = require("./../../../errors");
const getInsertErrorMessageText_1 = require("./../../getInsertErrorMessageText");
/**
 * Replacement handler for replacing parts of the tree that should be equal.
 */
class StraightReplacementNodeHandler {
    constructor(compilerFactory) {
        this.compilerFactory = compilerFactory;
    }
    handleNode(currentNode, newNode) {
        /* istanbul ignore if */
        if (currentNode.getKind() !== newNode.getKind())
            throw new errors.InvalidOperationError(getInsertErrorMessageText_1.getInsertErrorMessageText("Error replacing tree!", currentNode, newNode));
        const newNodeChildren = newNode.getChildrenIterator();
        for (const currentNodeChild of currentNode.getChildrenIterator()) {
            const newNodeChild = newNodeChildren.next().value;
            this.handleNode(currentNodeChild, newNodeChild);
        }
        /* istanbul ignore if */
        if (!newNodeChildren.next().done)
            throw new Error("Error replacing tree: Should not have new children left over."); // todo: better error message
        this.compilerFactory.replaceCompilerNode(currentNode, newNode.compilerNode);
    }
}
exports.StraightReplacementNodeHandler = StraightReplacementNodeHandler;

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