mirror of
https://github.com/denoland/deno.git
synced 2024-12-25 00:29:09 -05:00
2164f6b1eb
Welcome to better optimised op calls! Currently opSync is called with parameters of every type and count. This most definitely makes the call megamorphic. Additionally, it seems that spread params leads to V8 not being able to optimise the calls quite as well (apparently Fast Calls cannot be used with spread params). Monomorphising op calls should lead to some improved performance. Now that unwrapping of sync ops results is done on Rust side, this is pretty simple: ``` opSync("op_foo", param1, param2); // -> turns to ops.op_foo(param1, param2); ``` This means sync op calls are now just directly calling the native binding function. When V8 Fast API Calls are enabled, this will enable those to be called on the optimised path. Monomorphising async ops likely requires using callbacks and is left as an exercise to the reader.
339 lines
8.2 KiB
JavaScript
339 lines
8.2 KiB
JavaScript
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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// @ts-check
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/// <reference path="../../core/internal.d.ts" />
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/// <reference path="../../core/lib.deno_core.d.ts" />
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/// <reference path="../web/internal.d.ts" />
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/// <reference path="../web/lib.deno_web.d.ts" />
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"use strict";
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((window) => {
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const core = Deno.core;
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const ops = core.ops;
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const {
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ArrayPrototypeJoin,
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ArrayPrototypeMap,
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Error,
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JSONStringify,
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NumberPrototypeToString,
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RegExp,
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SafeArrayIterator,
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String,
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StringPrototypeCharAt,
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StringPrototypeCharCodeAt,
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StringPrototypeMatch,
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StringPrototypePadStart,
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StringPrototypeReplace,
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StringPrototypeSlice,
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StringPrototypeSubstring,
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StringPrototypeToLowerCase,
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StringPrototypeToUpperCase,
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TypeError,
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} = window.__bootstrap.primordials;
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const ASCII_DIGIT = ["\u0030-\u0039"];
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const ASCII_UPPER_ALPHA = ["\u0041-\u005A"];
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const ASCII_LOWER_ALPHA = ["\u0061-\u007A"];
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const ASCII_ALPHA = [
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...new SafeArrayIterator(ASCII_UPPER_ALPHA),
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...new SafeArrayIterator(ASCII_LOWER_ALPHA),
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];
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const ASCII_ALPHANUMERIC = [
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...new SafeArrayIterator(ASCII_DIGIT),
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...new SafeArrayIterator(ASCII_ALPHA),
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];
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const HTTP_TAB_OR_SPACE = ["\u0009", "\u0020"];
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const HTTP_WHITESPACE = [
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"\u000A",
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"\u000D",
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...new SafeArrayIterator(HTTP_TAB_OR_SPACE),
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];
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const HTTP_TOKEN_CODE_POINT = [
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"\u0021",
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"\u0023",
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"\u0024",
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"\u0025",
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"\u0026",
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"\u0027",
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"\u002A",
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"\u002B",
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"\u002D",
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"\u002E",
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"\u005E",
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"\u005F",
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"\u0060",
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"\u007C",
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"\u007E",
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...new SafeArrayIterator(ASCII_ALPHANUMERIC),
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];
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const HTTP_TOKEN_CODE_POINT_RE = new RegExp(
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`^[${regexMatcher(HTTP_TOKEN_CODE_POINT)}]+$`,
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);
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const HTTP_QUOTED_STRING_TOKEN_POINT = [
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"\u0009",
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"\u0020-\u007E",
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"\u0080-\u00FF",
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];
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const HTTP_QUOTED_STRING_TOKEN_POINT_RE = new RegExp(
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`^[${regexMatcher(HTTP_QUOTED_STRING_TOKEN_POINT)}]+$`,
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);
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const HTTP_TAB_OR_SPACE_MATCHER = regexMatcher(HTTP_TAB_OR_SPACE);
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const HTTP_TAB_OR_SPACE_PREFIX_RE = new RegExp(
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`^[${HTTP_TAB_OR_SPACE_MATCHER}]+`,
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"g",
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);
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const HTTP_TAB_OR_SPACE_SUFFIX_RE = new RegExp(
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`[${HTTP_TAB_OR_SPACE_MATCHER}]+$`,
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"g",
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);
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const HTTP_WHITESPACE_MATCHER = regexMatcher(HTTP_WHITESPACE);
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const HTTP_BETWEEN_WHITESPACE = new RegExp(
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`^[${HTTP_WHITESPACE_MATCHER}]*(.*?)[${HTTP_WHITESPACE_MATCHER}]*$`,
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);
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const HTTP_WHITESPACE_PREFIX_RE = new RegExp(
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`^[${HTTP_WHITESPACE_MATCHER}]+`,
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"g",
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);
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const HTTP_WHITESPACE_SUFFIX_RE = new RegExp(
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`[${HTTP_WHITESPACE_MATCHER}]+$`,
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"g",
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);
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/**
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* Turn a string of chars into a regex safe matcher.
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* @param {string[]} chars
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* @returns {string}
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*/
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function regexMatcher(chars) {
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const matchers = ArrayPrototypeMap(chars, (char) => {
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if (char.length === 1) {
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const a = StringPrototypePadStart(
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NumberPrototypeToString(StringPrototypeCharCodeAt(char, 0), 16),
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4,
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"0",
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);
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return `\\u${a}`;
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} else if (char.length === 3 && char[1] === "-") {
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const a = StringPrototypePadStart(
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NumberPrototypeToString(StringPrototypeCharCodeAt(char, 0), 16),
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4,
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"0",
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);
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const b = StringPrototypePadStart(
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NumberPrototypeToString(StringPrototypeCharCodeAt(char, 2), 16),
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4,
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"0",
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);
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return `\\u${a}-\\u${b}`;
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} else {
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throw TypeError("unreachable");
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}
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});
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return ArrayPrototypeJoin(matchers, "");
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}
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/**
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* https://infra.spec.whatwg.org/#collect-a-sequence-of-code-points
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* @param {string} input
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* @param {number} position
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* @param {(char: string) => boolean} condition
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* @returns {{result: string, position: number}}
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*/
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function collectSequenceOfCodepoints(input, position, condition) {
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const start = position;
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for (
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let c = StringPrototypeCharAt(input, position);
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position < input.length && condition(c);
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c = StringPrototypeCharAt(input, ++position)
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);
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return { result: StringPrototypeSlice(input, start, position), position };
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}
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/**
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* @param {string} s
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* @returns {string}
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*/
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function byteUpperCase(s) {
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return StringPrototypeReplace(
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String(s),
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/[a-z]/g,
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function byteUpperCaseReplace(c) {
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return StringPrototypeToUpperCase(c);
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},
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);
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}
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/**
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* @param {string} s
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* @returns {string}
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*/
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function byteLowerCase(s) {
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// NOTE: correct since all callers convert to ByteString first
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// TODO(@AaronO): maybe prefer a ByteString_Lower webidl converter
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return StringPrototypeToLowerCase(s);
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}
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/**
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* https://fetch.spec.whatwg.org/#collect-an-http-quoted-string
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* @param {string} input
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* @param {number} position
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* @param {boolean} extractValue
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* @returns {{result: string, position: number}}
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*/
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function collectHttpQuotedString(input, position, extractValue) {
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// 1.
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const positionStart = position;
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// 2.
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let value = "";
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// 3.
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if (input[position] !== "\u0022") throw new TypeError('must be "');
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// 4.
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position++;
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// 5.
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while (true) {
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// 5.1.
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const res = collectSequenceOfCodepoints(
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input,
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position,
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(c) => c !== "\u0022" && c !== "\u005C",
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);
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value += res.result;
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position = res.position;
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// 5.2.
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if (position >= input.length) break;
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// 5.3.
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const quoteOrBackslash = input[position];
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// 5.4.
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position++;
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// 5.5.
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if (quoteOrBackslash === "\u005C") {
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// 5.5.1.
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if (position >= input.length) {
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value += "\u005C";
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break;
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}
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// 5.5.2.
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value += input[position];
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// 5.5.3.
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position++;
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} else { // 5.6.
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// 5.6.1
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if (quoteOrBackslash !== "\u0022") throw new TypeError('must be "');
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// 5.6.2
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break;
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}
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}
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// 6.
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if (extractValue) return { result: value, position };
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// 7.
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return {
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result: StringPrototypeSubstring(input, positionStart, position + 1),
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position,
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};
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}
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/**
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* @param {Uint8Array} data
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* @returns {string}
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*/
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function forgivingBase64Encode(data) {
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return ops.op_base64_encode(data);
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}
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/**
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* @param {string} data
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* @returns {Uint8Array}
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*/
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function forgivingBase64Decode(data) {
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return ops.op_base64_decode(data);
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}
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/**
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* @param {string} char
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* @returns {boolean}
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*/
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function isHttpWhitespace(char) {
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switch (char) {
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case "\u0009":
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case "\u000A":
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case "\u000D":
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case "\u0020":
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return true;
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default:
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return false;
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}
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}
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/**
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* @param {string} s
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* @returns {string}
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*/
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function httpTrim(s) {
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if (!isHttpWhitespace(s[0]) && !isHttpWhitespace(s[s.length - 1])) {
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return s;
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}
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return StringPrototypeMatch(s, HTTP_BETWEEN_WHITESPACE)?.[1] ?? "";
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}
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class AssertionError extends Error {
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constructor(msg) {
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super(msg);
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this.name = "AssertionError";
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}
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}
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/**
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* @param {unknown} cond
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* @param {string=} msg
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* @returns {asserts cond}
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*/
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function assert(cond, msg = "Assertion failed.") {
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if (!cond) {
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throw new AssertionError(msg);
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}
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}
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/**
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* @param {unknown} value
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* @returns {string}
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*/
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function serializeJSValueToJSONString(value) {
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const result = JSONStringify(value);
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if (result === undefined) {
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throw new TypeError("Value is not JSON serializable.");
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}
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return result;
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}
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window.__bootstrap.infra = {
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collectSequenceOfCodepoints,
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ASCII_DIGIT,
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ASCII_UPPER_ALPHA,
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ASCII_LOWER_ALPHA,
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ASCII_ALPHA,
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ASCII_ALPHANUMERIC,
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HTTP_TAB_OR_SPACE,
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HTTP_WHITESPACE,
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HTTP_TOKEN_CODE_POINT,
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HTTP_TOKEN_CODE_POINT_RE,
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HTTP_QUOTED_STRING_TOKEN_POINT,
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HTTP_QUOTED_STRING_TOKEN_POINT_RE,
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HTTP_TAB_OR_SPACE_PREFIX_RE,
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HTTP_TAB_OR_SPACE_SUFFIX_RE,
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HTTP_WHITESPACE_PREFIX_RE,
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HTTP_WHITESPACE_SUFFIX_RE,
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httpTrim,
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regexMatcher,
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byteUpperCase,
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byteLowerCase,
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collectHttpQuotedString,
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forgivingBase64Encode,
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forgivingBase64Decode,
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AssertionError,
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assert,
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serializeJSValueToJSONString,
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};
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})(globalThis);
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