@angular/language-service/src/hover.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
(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/language-service/src/hover", ["require", "exports", "tslib", "typescript", "@angular/language-service/common/quick_info", "@angular/language-service/src/locate_symbol", "@angular/language-service/src/utils"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.getTsHover = exports.getTemplateHover = void 0;
    var tslib_1 = require("tslib");
    var ts = require("typescript");
    var quick_info_1 = require("@angular/language-service/common/quick_info");
    var locate_symbol_1 = require("@angular/language-service/src/locate_symbol");
    var utils_1 = require("@angular/language-service/src/utils");
    /**
     * Traverse the template AST and look for the symbol located at `position`, then
     * return the corresponding quick info.
     * @param info template AST
     * @param position location of the symbol
     * @param analyzedModules all NgModules in the program.
     */
    function getTemplateHover(info, position, analyzedModules) {
        var _a, _b;
        var symbolInfo = locate_symbol_1.locateSymbols(info, position)[0];
        if (!symbolInfo) {
            return;
        }
        var symbol = symbolInfo.symbol, span = symbolInfo.span, staticSymbol = symbolInfo.staticSymbol;
        // The container is either the symbol's container (for example, 'AppComponent'
        // is the container of the symbol 'title' in its template) or the NgModule
        // that the directive belongs to (the container of AppComponent is AppModule).
        var containerName = (_a = symbol.container) === null || _a === void 0 ? void 0 : _a.name;
        if (!containerName && staticSymbol) {
            // If there is a static symbol then the target is a directive.
            var ngModule = analyzedModules.ngModuleByPipeOrDirective.get(staticSymbol);
            containerName = ngModule === null || ngModule === void 0 ? void 0 : ngModule.type.reference.name;
        }
        return quick_info_1.createQuickInfo(symbol.name, symbol.kind, span, containerName, (_b = symbol.type) === null || _b === void 0 ? void 0 : _b.name, symbol.documentation);
    }
    exports.getTemplateHover = getTemplateHover;
    /**
     * Get quick info for Angular semantic entities in TypeScript files, like Directives.
     * @param position location of the symbol in the source file
     * @param declarations All Directive-like declarations in the source file.
     * @param analyzedModules all NgModules in the program.
     */
    function getTsHover(position, declarations, analyzedModules) {
        var e_1, _a;
        try {
            for (var declarations_1 = tslib_1.__values(declarations), declarations_1_1 = declarations_1.next(); !declarations_1_1.done; declarations_1_1 = declarations_1.next()) {
                var _b = declarations_1_1.value, declarationSpan = _b.declarationSpan, metadata = _b.metadata;
                if (utils_1.inSpan(position, declarationSpan)) {
                    var staticSymbol = metadata.type.reference;
                    var directiveName = staticSymbol.name;
                    var kind = metadata.isComponent ? 'component' : 'directive';
                    var textSpan = ts.createTextSpanFromBounds(declarationSpan.start, declarationSpan.end);
                    var ngModule = analyzedModules.ngModuleByPipeOrDirective.get(staticSymbol);
                    var moduleName = ngModule === null || ngModule === void 0 ? void 0 : ngModule.type.reference.name;
                    return quick_info_1.createQuickInfo(directiveName, kind, textSpan, moduleName, ts.ScriptElementKind.classElement);
                }
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (declarations_1_1 && !declarations_1_1.done && (_a = declarations_1.return)) _a.call(declarations_1);
            }
            finally { if (e_1) throw e_1.error; }
        }
    }
    exports.getTsHover = getTsHover;
});
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