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Upgrade typescript to v5.5 (#16388)

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fisker Cheung authored and GitHub committed 2024-06-13 09:13:41 +08:00
1 parent 32c4cd3fdb
commit 3f5a4c9fe5
9 files changed
+1249 -75
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scripts/build/modify-typescript-module.js
+129 -63
View File
@@ -5,9 +5,10 @@ import MagicString from "magic-string";
import { outdent } from "outdent";
import { PROJECT_ROOT, writeFile } from "../utils/index.js";
import UNUSED_SPECIFIERS from "./typescript-unused-specifiers.js";
function* getModules(text) {
const parts = text.split(/(?<=\n)( {2}\/\/ src\/\S+\n)/);
const parts = text.split(/(?<=\n)(\/\/ src\/\S+\n)/);
let start = parts[0].length;
@@ -15,31 +16,16 @@ function* getModules(text) {
const comment = parts[partIndex];
const code = parts[partIndex + 1];
const path = comment.slice(" // ".length, -1);
const path = comment.slice("// ".length, -1);
const end = start + comment.length + code.length;
if (/\S/.test(code)) {
const esmRegExp = new RegExp(
[
String.raw`\s*var (?<initFunctionName>\w+) = __esm\({`,
`\\s*"${escapeStringRegexp(path)}"\\(\\) {`,
".*",
String.raw`\s*}`,
String.raw`\s*}\);`,
].join(String.raw`\n`),
"s",
);
const match = code.match(esmRegExp);
yield {
isEntry: path === "src/typescript/typescript.ts",
path,
start: start + comment.length,
end: end - 1,
code,
esmModuleInitFunctionName: match?.groups.initFunctionName,
};
}
yield {
isEntry: path === "src/typescript/typescript.ts",
path,
start: start + comment.length,
end: end - 1,
code,
};
start = end;
}
@@ -65,16 +51,7 @@ class TypeScriptModuleSource {
module = found;
}
const { esmModuleInitFunctionName } = module;
const moduleInitCode = esmModuleInitFunctionName
? `var ${esmModuleInitFunctionName} = () => {};`
: "";
this.#source.overwrite(
module.start,
module.end,
moduleInitCode + replacement,
);
this.#source.overwrite(module.start, module.end, replacement);
return this;
}
@@ -142,8 +119,8 @@ class TypeScriptModuleSource {
}
function unwrap(text) {
const startMark = "var ts = (() => {";
const endMark = "return require_typescript();";
const startMark = 'var ts = {}; ((module) => {\n"use strict";';
const endMark = "// src/typescript/typescript.ts";
const start = text.indexOf(startMark);
const end = text.lastIndexOf(endMark);
@@ -151,7 +128,40 @@ function unwrap(text) {
throw new Error("Unexpected source");
}
return text.slice(start + startMark.length, end);
text = text.slice(start + startMark.length, end);
return text;
}
function getExports(entry) {
let lines = entry.code.trim().split("\n");
if (
!(
lines[0] === "var typescript_exports = {};" &&
lines[1] === "__export(typescript_exports, {" &&
lines.at(-2) === "});" &&
lines.at(-1) === "module.exports = __toCommonJS(typescript_exports);"
)
) {
throw new Error("Unexpected source");
}
lines = lines.slice(2, -2);
const exports = lines.map((line) => {
const match = line.match(
/^\s*(?<specifier>.*?): \(\) => (?<variable>.*?),?$/,
);
if (!match) {
throw new Error("Unexpected source");
}
return match.groups;
});
return exports;
}
function modifyTypescriptModule(text) {
@@ -159,6 +169,21 @@ function modifyTypescriptModule(text) {
const source = new TypeScriptModuleSource(text);
const entry = source.modules.find((module) => module.isEntry);
let exports = getExports(entry);
source.removeModule(entry);
// print variables from core.ts to ignore
// const coreModule = source.modules.find(
// (module) => module.path === "src/compiler/core.ts",
// );
// const variables = [
// ...coreModule.code.matchAll(/(?<=\n)var (?<variable>\w+) =/g),
// ...coreModule.code.matchAll(/(?<=\n)function (?<variable>\w+)\(/g),
// ].map((match) => match.groups.variable);
// console.log(JSON.stringify(variables, undefined, 2));
// Deprecated
for (const module of source.modules) {
if (module.path.startsWith("src/deprecatedCompat/")) {
@@ -175,10 +200,7 @@ function modifyTypescriptModule(text) {
// services
for (const module of source.modules) {
if (
module.path === "src/services/services.ts" ||
module.path === "src/services/_namespaces/ts.ts"
) {
if (module.path === "src/services/services.ts") {
continue;
}
@@ -186,13 +208,7 @@ function modifyTypescriptModule(text) {
if (module.path === "src/services/utilities.ts") {
source.replaceModule(
module,
outdent`
var scanner;
var ${module.esmModuleInitFunctionName} = () => {
init_debug();
scanner = createScanner(99 /* Latest */, /*skipTrivia*/ true);
};
`,
"var scanner = createScanner(ScriptTarget.Latest, /*skipTrivia*/ true);",
);
continue;
}
@@ -203,6 +219,7 @@ function modifyTypescriptModule(text) {
}
// server
source.removeModule("src/typescript/_namespaces/ts.server.ts");
for (const module of source.modules) {
if (module.path.startsWith("src/server/")) {
source.removeModule(module);
@@ -217,6 +234,13 @@ function modifyTypescriptModule(text) {
}
}
// `typingsInstaller`
for (const module of source.modules) {
if (module.path.startsWith("src/typingsInstallerCore/")) {
source.removeModule(module);
}
}
// `ts.moduleSpecifiers`
source.removeModule("src/compiler/_namespaces/ts.moduleSpecifiers.ts");
source.removeModule("src/compiler/moduleSpecifiers.ts");
@@ -237,7 +261,6 @@ function modifyTypescriptModule(text) {
source.removeModule("src/compiler/tsbuild.ts");
source.removeModule("src/compiler/tsbuildPublic.ts");
source.removeModule("src/compiler/builderState.ts");
source.removeModule("src/compiler/builderStatePublic.ts");
// Misc
source.removeModule("src/compiler/symbolWalker.ts");
@@ -249,6 +272,8 @@ function modifyTypescriptModule(text) {
source.removeModule("src/compiler/visitorPublic.ts");
source.removeModule("src/compiler/emitter.ts");
source.removeModule("src/compiler/_namespaces/ts.performance.ts");
source.removeModule("src/compiler/executeCommandLine.ts");
source.removeModule("src/compiler/expressionToTypeNode.ts");
// File system
source.replaceModule("src/compiler/sys.ts", "var sys;");
@@ -260,7 +285,7 @@ function modifyTypescriptModule(text) {
"var perfLogger = new Proxy(() => {}, {get: () => perfLogger});",
);
// performanceCore
// performance
source.replaceModule(
"src/compiler/performanceCore.ts",
outdent`
@@ -268,21 +293,32 @@ function modifyTypescriptModule(text) {
var timestamp = Date.now;
`,
);
source.replaceModule(
"src/compiler/performance.ts",
outdent`
var mark = () => {};
var measure = () => {};
`,
);
// `factory`
source.removeModule("src/compiler/factory/emitNode.ts");
source.removeModule("src/compiler/factory/emitHelpers.ts");
source.replaceModule(
"src/compiler/factory/nodeConverters.ts",
outdent`
var createNodeConverters = () => new Proxy({}, {get: () => () => {}});
`,
);
source.removeModule("src/compiler/factory/nodeConverters.ts");
// `pnp`
if (source.hasModule("src/compiler/pnp.ts")) {
source.removeModule("src/compiler/pnp.ts");
}
if (source.hasModule("src/compiler/pnpapi.ts")) {
source.removeModule("src/compiler/pnpapi.ts");
}
source.replaceAlignedCode({
start: "function isNodeLikeSystem(",
end: "}",
replacement: "function isNodeLikeSystem() {return false}",
});
/* spell-checker: disable */
// `ts.createParenthesizerRules`
@@ -293,8 +329,8 @@ function modifyTypescriptModule(text) {
/* spell-checker: enable */
source.replaceAlignedCode({
start: "function getScriptTargetFeatures(",
end: "}",
start: "var getScriptTargetFeatures = /* @__PURE__ */ memoize(",
end: ");",
});
source.replaceAlignedCode({
@@ -302,16 +338,46 @@ function modifyTypescriptModule(text) {
end: "});",
});
source.append("module.exports = require_typescript();");
let code = source.toString();
exports = exports.filter(
({ specifier }) => !UNUSED_SPECIFIERS.has(specifier),
);
return source.toString();
code = addExports(code, exports);
code +=
"\n" +
outdent`
export const isUnparsedPrepend = () => false;
export const isUnparsedTextLike = () => false;
`;
return { code, exports };
}
function addExports(code, exports) {
return (
code +
"\n\n" +
outdent`
export {
${exports
.map(({ specifier, variable }) =>
variable === specifier ? specifier : `${variable} as ${specifier}`,
)
.map((line) => ` ${line},`)
.join("\n")}
};
`
);
}
// Save modified code to `{PROJECT_ROOT}/.tmp/modified-typescript.js` for debug
const saveOutputToDisk = (process) => (text) => {
const result = process(text);
writeFile(path.join(PROJECT_ROOT, ".tmp/modified-typescript.js"), result);
return result;
const { code } = process(text);
writeFile(path.join(PROJECT_ROOT, ".tmp/modified-typescript.js"), code);
return code;
};
export default saveOutputToDisk(modifyTypescriptModule);
export { modifyTypescriptModule };