VS Code js编译支持alias

VS Code 的编译器其实就是使用的 typescript 编译器，就是以前提到过的 tsserver.js

相应的编译参数可以参考 http://www.typescriptlang.org/docs/handbook/compiler-options.html

编译配置的话，只需要在项目中编写 jsconfig.json 或 tsconfig.json

1.增加配置属性

没仔细研究该怎么配置，直接按照paths的进行复制

{

    name: "alias",

    type: "object",

    isTSConfigOnly: true,

    category: ts.Diagnostics.Module_Resolution_Options,

    description: ts.Diagnostics.A_series_of_entries_which_re_map_imports_to_lookup_locations_relative_to_the_baseUrl

},

2.在LoadModule方法中增加

    function _getModuleUsingBaseUrlAliasPath(alias, moduleName) {

        var flag = false;

        var path = moduleName;

        do {

            flag = false;

            for (var key in alias) {

                if (path == key || path.indexOf(key + '/') === 0) {

                    path = alias[key] + path.substr(key.length)

                    flag = true;

                }

            }

        } while(flag);

        return path;

    }

    function tryLoadModuleUsingBaseUrlAlias(extensions, moduleName, loader, failedLookupLocations, state) {

        var baseUrl = state.compilerOptions.baseUrl;

        var path = '';

        var flag = false;

        var path = _getModuleUsingBaseUrlAliasPath(state.compilerOptions.alias, moduleName);

        if (path ==  moduleName) return false;

        var candidate = ts.normalizePath(ts.combinePaths(baseUrl, path));

        var res = loader(extensions, candidate, failedLookupLocations, !directoryProbablyExists(ts.getDirectoryPath(candidate), state.host), state);

        return res;

    }

    function tryLoadModuleUsingBaseUrl(extensions, moduleName, loader, failedLookupLocations, state) {

        if (!state.compilerOptions.baseUrl) {

            return undefined;

        }

        if (state.traceEnabled) {

            trace(state.host, ts.Diagnostics.baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1, state.compilerOptions.baseUrl, moduleName);

        }

        if (state.compilerOptions.alias) {

            var res = tryLoadModuleUsingBaseUrlAlias(extensions, moduleName, loader, failedLookupLocations, state);

            if (res) {

                return res;

            }

        }

巴特西

VS Code js编译支持alias

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