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denoland-deno/runtime/js/40_compiler_api.js
2021-07-04 00:17:52 +02:00

97 lines
2.5 KiB
JavaScript

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
// @ts-check
// This file contains the runtime APIs which will dispatch work to the internal
// compiler within Deno.
"use strict";
((window) => {
const core = window.Deno.core;
const util = window.__bootstrap.util;
const {
StringPrototypeMatch,
PromiseReject,
TypeError,
} = window.__bootstrap.primordials;
/**
* @typedef {object} ImportMap
* @property {Record<string, string>} imports
* @property {Record<string, Record<string, string>>=} scopes
*/
/**
* @typedef {object} OpEmitRequest
* @property {"module" | "classic"=} bundle
* @property {boolean=} check
* @property {Record<string, any>=} compilerOptions
* @property {ImportMap=} importMap
* @property {string=} importMapPath
* @property {string} rootSpecifier
* @property {Record<string, string>=} sources
*/
/**
* @typedef OpEmitResponse
* @property {any[]} diagnostics
* @property {Record<string, string>} files
* @property {string[]=} ignoredOptions
* @property {Array<[string, number]>} stats
*/
/**
* @param {OpEmitRequest} request
* @returns {Promise<OpEmitResponse>}
*/
function opEmit(request) {
return core.opAsync("op_emit", request);
}
/**
* @param {string} specifier
* @returns {string}
*/
function checkRelative(specifier) {
return StringPrototypeMatch(
specifier,
/^([\.\/\\]|https?:\/{2}|file:\/{2})/,
)
? specifier
: `./${specifier}`;
}
/**
* @typedef {object} EmitOptions
* @property {"module" | "classic"=} bundle
* @property {boolean=} check
* @property {Record<string, any>=} compilerOptions
* @property {ImportMap=} importMap
* @property {string=} importMapPath
* @property {Record<string, string>=} sources
*/
/**
* @param {string | URL} rootSpecifier
* @param {EmitOptions=} options
* @returns {Promise<OpEmitResponse>}
*/
function emit(rootSpecifier, options = {}) {
util.log(`Deno.emit`, { rootSpecifier });
if (!rootSpecifier) {
return PromiseReject(
new TypeError("A root specifier must be supplied."),
);
}
if (!(typeof rootSpecifier === "string")) {
rootSpecifier = rootSpecifier.toString();
}
if (!options.sources) {
rootSpecifier = checkRelative(rootSpecifier);
}
return opEmit({ rootSpecifier, ...options });
}
window.__bootstrap.compilerApi = {
emit,
};
})(this);