source: trip-planner-front/node_modules/@angular/compiler-cli/linker/babel/src/babel_declaration_scope.js@ 6a3a178

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define("@angular/compiler-cli/linker/babel/src/babel_declaration_scope", ["require", "exports", "@babel/types"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.BabelDeclarationScope = void 0;
    var t = require("@babel/types");
    /**
     * This class represents the lexical scope of a partial declaration in Babel source code.
     *
     * Its only responsibility is to compute a reference object for the scope of shared constant
     * statements that will be generated during partial linking.
     */
    var BabelDeclarationScope = /** @class */ (function () {
        /**
         * Construct a new `BabelDeclarationScope`.
         *
         * @param declarationScope the Babel scope containing the declaration call expression.
         */
        function BabelDeclarationScope(declarationScope) {
            this.declarationScope = declarationScope;
        }
        /**
         * Compute the Babel `NodePath` that can be used to reference the lexical scope where any
         * shared constant statements would be inserted.
         *
         * There will only be a shared constant scope if the expression is in an ECMAScript module, or a
         * UMD module. Otherwise `null` is returned to indicate that constant statements must be emitted
         * locally to the generated linked definition, to avoid polluting the global scope.
         *
         * @param expression the expression that points to the Angular core framework import.
         */
        BabelDeclarationScope.prototype.getConstantScopeRef = function (expression) {
            // If the expression is of the form `a.b.c` then we want to get the far LHS (e.g. `a`).
            var bindingExpression = expression;
            while (t.isMemberExpression(bindingExpression)) {
                bindingExpression = bindingExpression.object;
            }
            if (!t.isIdentifier(bindingExpression)) {
                return null;
            }
            // The binding of the expression is where this identifier was declared.
            // This could be a variable declaration, an import namespace or a function parameter.
            var binding = this.declarationScope.getBinding(bindingExpression.name);
            if (binding === undefined) {
                return null;
            }
            // We only support shared constant statements if the binding was in a UMD module (i.e. declared
            // within a `t.Function`) or an ECMASCript module (i.e. declared at the top level of a
            // `t.Program` that is marked as a module).
            var path = binding.scope.path;
            if (!path.isFunctionParent() && !(path.isProgram() && path.node.sourceType === 'module')) {
                return null;
            }
            return path;
        };
        return BabelDeclarationScope;
    }());
    exports.BabelDeclarationScope = BabelDeclarationScope;
});
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VsbDtcbiAgICB9XG5cbiAgICByZXR1cm4gcGF0aDtcbiAgfVxufVxuIl19