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Code Issues Packages 1 Wiki Activity

Use typescript strict mode (#505)

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This commit is contained in:
Kitson Kelly 2018-08-15 09:40:30 -07:00 committed by Ryan Dahl
parent 0ce7b6e870
commit 168d92f5d2
7 changed files with 96 additions and 58 deletions
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4
js/main.ts
View file

@ -72,5 +72,7 @@ export default function denoMain() {
const inputFn = argv[1];
const mod = runtime.resolveModule(inputFn, `${cwd}/`);
mod.compileAndRun();
assert(mod != null);
// TypeScript does not track assert, therefore not null assertion
mod!.compileAndRun();
}

25
js/os.ts
View file

@ -37,11 +37,14 @@ export function codeFetch(
fbs.Base.addMsgType(builder, fbs.Any.CodeFetch);
builder.finish(fbs.Base.endBase(builder));
const resBuf = libdeno.send(builder.asUint8Array());
assert(resBuf != null);
// Process CodeFetchRes
const bb = new flatbuffers.ByteBuffer(new Uint8Array(resBuf));
// TypeScript does not track `assert` from a CFA perspective, therefore not
// null assertion `!`
const bb = new flatbuffers.ByteBuffer(new Uint8Array(resBuf!));
const baseRes = fbs.Base.getRootAsBase(bb);
if (fbs.Any.NONE === baseRes.msgType()) {
throw Error(baseRes.error());
throw Error(baseRes.error()!);
}
assert(fbs.Any.CodeFetchRes === baseRes.msgType());
const codeFetchRes = new fbs.CodeFetchRes();
@ -80,7 +83,9 @@ export function codeCache(
const bb = new flatbuffers.ByteBuffer(new Uint8Array(resBuf));
const baseRes = fbs.Base.getRootAsBase(bb);
assert(fbs.Any.NONE === baseRes.msgType());
throw Error(baseRes.error());
// undefined and null are incompatible in strict mode, but at runtime
// a null value is fine, therefore not null assertion
throw Error(baseRes.error()!);
}
}
@ -103,16 +108,22 @@ export function readFileSync(filename: string): Uint8Array {
builder.finish(fbs.Base.endBase(builder));
const resBuf = libdeno.send(builder.asUint8Array());
assert(resBuf != null);
const bb = new flatbuffers.ByteBuffer(new Uint8Array(resBuf));
// TypeScript does not track `assert` from a CFA perspective, therefore not
// null assertion `!`
const bb = new flatbuffers.ByteBuffer(new Uint8Array(resBuf!));
const baseRes = fbs.Base.getRootAsBase(bb);
if (fbs.Any.NONE === baseRes.msgType()) {
throw Error(baseRes.error());
// undefined and null are incompatible in strict mode, but at runtime
// a null value is fine, therefore not null assertion
throw Error(baseRes.error()!);
}
assert(fbs.Any.ReadFileSyncRes === baseRes.msgType());
const res = new fbs.ReadFileSyncRes();
assert(baseRes.msg(res) != null);
return new Uint8Array(res.dataArray());
const dataArray = res.dataArray();
assert(dataArray != null);
// TypeScript cannot track assertion above, therefore not null assertion
return new Uint8Array(dataArray!);
}
export function writeFileSync(

87
js/runtime.ts
View file

@ -57,7 +57,7 @@ export function setup(): void {
const mod = FileModule.load(filename);
if (!mod) {
util.log("getGeneratedContents cannot find", filename);
return null;
return "";
}
return mod.outputCode;
}
@ -71,7 +71,7 @@ export function setup(): void {
// FileModule.load(). FileModules are NOT executed upon first load, only when
// compileAndRun is called.
export class FileModule {
scriptVersion: string;
scriptVersion = "";
readonly exports = {};
private static readonly map = new Map<string, FileModule>();
@ -105,7 +105,7 @@ export class FileModule {
execute(this.fileName, this.outputCode);
}
static load(fileName: string): FileModule {
static load(fileName: string): FileModule | undefined {
return this.map.get(fileName);
}
@ -113,7 +113,7 @@ export class FileModule {
const out = [];
for (const fn of this.map.keys()) {
const m = this.map.get(fn);
if (m.sourceCode) {
if (m && m.sourceCode) {
out.push(fn);
}
}
@ -127,7 +127,8 @@ export function makeDefine(fileName: string): AmdDefine {
log("localRequire", x);
};
const currentModule = FileModule.load(fileName);
const localExports = currentModule.exports;
util.assert(currentModule != null);
const localExports = currentModule!.exports;
log("localDefine", fileName, deps, localExports);
const args = deps.map(dep => {
if (dep === "require") {
@ -140,9 +141,13 @@ export function makeDefine(fileName: string): AmdDefine {
return deno;
} else {
const resolved = resolveModuleName(dep, fileName);
const depModule = FileModule.load(resolved);
depModule.compileAndRun();
return depModule.exports;
util.assert(resolved != null);
const depModule = FileModule.load(resolved!);
if (depModule) {
depModule.compileAndRun();
return depModule.exports;
}
return undefined;
}
});
factory(...args);
@ -156,10 +161,14 @@ export function resolveModule(
): null | FileModule {
util.log("resolveModule", { moduleSpecifier, containingFile });
util.assert(moduleSpecifier != null && moduleSpecifier.length > 0);
let filename: string, sourceCode: string, outputCode: string;
let filename: string | null;
let sourceCode: string | null;
let outputCode: string | null;
if (moduleSpecifier.startsWith(ASSETS) || containingFile.startsWith(ASSETS)) {
// Assets are compiled into the runtime javascript bundle.
const moduleId = moduleSpecifier.split("/").pop();
// we _know_ `.pop()` will return a string, but TypeScript doesn't so
// not null assertion
const moduleId = moduleSpecifier.split("/").pop()!;
const assetName = moduleId.includes(".") ? moduleId : `${moduleId}.d.ts`;
util.assert(assetName in assetSourceCode, `No such asset "${assetName}"`);
sourceCode = assetSourceCode[assetName];
@ -179,7 +188,7 @@ export function resolveModule(
sourceCode = fetchResponse.sourceCode;
outputCode = fetchResponse.outputCode;
}
if (sourceCode == null || sourceCode.length === 0) {
if (sourceCode == null || sourceCode.length === 0 || filename == null) {
return null;
}
util.log("resolveModule sourceCode length ", sourceCode.length);
@ -187,7 +196,9 @@ export function resolveModule(
if (m != null) {
return m;
} else {
return new FileModule(filename, sourceCode, outputCode);
// null and undefined are incompatible in strict mode, but outputCode being
// null here has no runtime behavior impact, therefore not null assertion
return new FileModule(filename, sourceCode, outputCode!);
}
}
@ -204,7 +215,7 @@ function resolveModuleName(
}
function execute(fileName: string, outputCode: string): void {
util.assert(outputCode && outputCode.length > 0);
util.assert(outputCode != null && outputCode.length > 0);
window["define"] = makeDefine(fileName);
outputCode += `\n//# sourceURL=${fileName}`;
globalEval(outputCode);
@ -278,7 +289,7 @@ class TypeScriptHost implements ts.LanguageServiceHost {
getScriptVersion(fileName: string): string {
util.log("getScriptVersion", fileName);
const m = FileModule.load(fileName);
return m.scriptVersion;
return (m && m.scriptVersion) || "";
}
getScriptSnapshot(fileName: string): ts.IScriptSnapshot | undefined {
@ -323,32 +334,40 @@ class TypeScriptHost implements ts.LanguageServiceHost {
const fn = "lib.globals.d.ts"; // ts.getDefaultLibFileName(options);
util.log("getDefaultLibFileName", fn);
const m = resolveModule(fn, ASSETS);
return m.fileName;
util.assert(m != null);
// TypeScript cannot track assertions, therefore not null assertion
return m!.fileName;
}
resolveModuleNames(
moduleNames: string[],
containingFile: string,
reusedNames?: string[]
): Array<ts.ResolvedModule | undefined> {
containingFile: string
): ts.ResolvedModule[] {
//util.log("resolveModuleNames", { moduleNames, reusedNames });
return moduleNames.map((name: string) => {
let resolvedFileName;
if (name === "deno") {
resolvedFileName = resolveModuleName("deno.d.ts", ASSETS);
} else if (name === "typescript") {
resolvedFileName = resolveModuleName("typescript.d.ts", ASSETS);
} else {
resolvedFileName = resolveModuleName(name, containingFile);
if (resolvedFileName == null) {
return undefined;
return moduleNames
.map(name => {
let resolvedFileName;
if (name === "deno") {
resolvedFileName = resolveModuleName("deno.d.ts", ASSETS);
} else if (name === "typescript") {
resolvedFileName = resolveModuleName("typescript.d.ts", ASSETS);
} else {
resolvedFileName = resolveModuleName(name, containingFile);
}
}
// This flags to the compiler to not go looking to transpile functional
// code, anything that is in `/$asset$/` is just library code
const isExternalLibraryImport = resolvedFileName.startsWith(ASSETS);
return { resolvedFileName, isExternalLibraryImport };
});
// According to the interface we shouldn't return `undefined` but if we
// fail to return the same length of modules to those we cannot resolve
// then TypeScript fails on an assertion that the lengths can't be
// different, so we have to return an "empty" resolved module
// TODO: all this does is push the problem downstream, and TypeScript
// will complain it can't identify the type of the file and throw
// a runtime exception, so we need to handle missing modules better
resolvedFileName = resolvedFileName || "";
// This flags to the compiler to not go looking to transpile functional
// code, anything that is in `/$asset$/` is just library code
const isExternalLibraryImport = resolvedFileName.startsWith(ASSETS);
// TODO: we should be returning a ts.ResolveModuleFull
return { resolvedFileName, isExternalLibraryImport };
});
}
}

8
js/types.d.ts vendored
View file

@ -2,10 +2,10 @@
export type TypedArray = Uint8Array | Float32Array | Int32Array;
export interface ModuleInfo {
moduleName?: string;
filename?: string;
sourceCode?: string;
outputCode?: string;
moduleName: string | null;
filename: string | null;
sourceCode: string | null;
outputCode: string | null;
}
// Following definitions adapted from:

11
js/util.ts
View file

@ -49,15 +49,20 @@ export function arrayToStr(ui8: Uint8Array): string {
// produces broken code when targeting ES5 code.
// See https://github.com/Microsoft/TypeScript/issues/15202
// At the time of writing, the github issue is closed but the problem remains.
export interface Resolvable<T> extends Promise<T> {
export interface ResolvableMethods<T> {
resolve: (value?: T | PromiseLike<T>) => void;
// tslint:disable-next-line:no-any
reject: (reason?: any) => void;
}
type Resolvable<T> = Promise<T> & ResolvableMethods<T>;
export function createResolvable<T>(): Resolvable<T> {
let methods;
let methods: ResolvableMethods<T>;
const promise = new Promise<T>((resolve, reject) => {
methods = { resolve, reject };
});
return Object.assign(promise, methods) as Resolvable<T>;
// TypeScript doesn't know that the Promise callback occurs synchronously
// therefore use of not null assertion (`!`)
return Object.assign(promise, methods!) as Resolvable<T>;
}

16
js/v8_source_maps.ts
View file

@ -40,7 +40,7 @@ export function prepareStackTraceWrapper(
try {
return prepareStackTrace(error, stack);
} catch (prepareStackError) {
Error.prepareStackTrace = null;
Error.prepareStackTrace = undefined;
console.log("=====Error inside of prepareStackTrace====");
console.log(prepareStackError.stack.toString());
console.log("=====Original error=======================");
@ -66,8 +66,8 @@ export function wrapCallSite(frame: CallSite): CallSite {
const source = frame.getFileName() || frame.getScriptNameOrSourceURL();
if (source) {
const line = frame.getLineNumber();
const column = frame.getColumnNumber() - 1;
const line = frame.getLineNumber() || 0;
const column = (frame.getColumnNumber() || 1) - 1;
const position = mapSourcePosition({ source, line, column });
frame = cloneCallSite(frame);
frame.getFileName = () => position.source;
@ -79,7 +79,7 @@ export function wrapCallSite(frame: CallSite): CallSite {
}
// Code called using eval() needs special handling
let origin = frame.isEval() && frame.getEvalOrigin();
let origin = (frame.isEval() && frame.getEvalOrigin()) || undefined;
if (origin) {
origin = mapEvalOrigin(origin);
frame = cloneCallSite(frame);
@ -115,7 +115,7 @@ function CallSiteToString(frame: CallSite): string {
} else {
fileName = frame.getScriptNameOrSourceURL();
if (!fileName && frame.isEval()) {
fileLocation = frame.getEvalOrigin();
fileLocation = frame.getEvalOrigin() || "";
fileLocation += ", "; // Expecting source position to follow.
}
@ -162,7 +162,7 @@ function CallSiteToString(frame: CallSite): string {
line += ` [as ${methodName} ]`;
}
} else {
line += typeName + "." + (methodName || "<anonymous>");
line += `${typeName}.${methodName || "<anonymous>"}`;
}
} else if (isConstructor) {
line += "new " + (functionName || "<anonymous>");
@ -181,7 +181,7 @@ function CallSiteToString(frame: CallSite): string {
// Regex for detecting source maps
const reSourceMap = /^data:application\/json[^,]+base64,/;
function loadConsumer(source: string): SourceMapConsumer {
function loadConsumer(source: string): SourceMapConsumer | null {
let consumer = consumers.get(source);
if (consumer == null) {
const code = getGeneratedContents(source);
@ -221,7 +221,7 @@ function loadConsumer(source: string): SourceMapConsumer {
return consumer;
}
function retrieveSourceMapURL(fileData: string): string {
function retrieveSourceMapURL(fileData: string): string | null {
// Get the URL of the source map
// tslint:disable-next-line:max-line-length
const re = /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/)[ \t]*$)/gm;

3
tsconfig.json
View file

@ -4,10 +4,10 @@
"baseUrl": ".",
"module": "esnext",
"moduleResolution": "node",
"noImplicitAny": true,
"noImplicitReturns": true,
"noFallthroughCasesInSwitch": true,
"noLib": true,
"noUnusedLocals": true,
"paths": {
"*": ["*", "out/debug/*", "out/default/*", "out/release/*"]
},
@ -15,6 +15,7 @@
"pretty": true,
"removeComments": true,
"sourceMap": true,
"strict": true,
"target": "esnext",
"types": []
},