"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const LinkedList_1 = require("./LinkedList");
const VueProgram_1 = require("./VueProgram");
class CompilerHost {
constructor(typescript, programConfigFile, compilerOptions, checkSyntacticErrors, userResolveModuleName, userResolveTypeReferenceDirective) {
this.typescript = typescript;
// intercept all watch events and collect them until we get notification to start compilation
this.directoryWatchers = new LinkedList_1.LinkedList();
this.fileWatchers = new LinkedList_1.LinkedList();
this.knownFiles = new Set();
this.gatheredDiagnostic = [];
this.afterCompile = () => {
/* do nothing */
};
this.compilationStarted = false;
this.createProgram = this.typescript
.createEmitAndSemanticDiagnosticsBuilderProgram;
this.tsHost = typescript.createWatchCompilerHost(programConfigFile, compilerOptions, typescript.sys, typescript.createEmitAndSemanticDiagnosticsBuilderProgram, (diag) => {
if (!checkSyntacticErrors &&
diag.code >= 1000 &&
diag.code < 2000 &&
diag.file // if diag.file is undefined, this is not a syntactic error, but a global error that should be emitted
) {
return;
}
this.gatheredDiagnostic.push(diag);
}, () => {
// do nothing
});
this.configFileName = this.tsHost.configFileName;
this.optionsToExtend = this.tsHost.optionsToExtend || {};
if (userResolveModuleName) {
this.resolveModuleNames = (moduleNames, containingFile) => {
return moduleNames.map(moduleName => {
return userResolveModuleName(this.typescript, moduleName, containingFile, this.optionsToExtend, this).resolvedModule;
});
};
}
if (userResolveTypeReferenceDirective) {
this.resolveTypeReferenceDirectives = (typeDirectiveNames, containingFile) => {
return typeDirectiveNames.map(typeDirectiveName => {
return userResolveTypeReferenceDirective(this.typescript, typeDirectiveName, containingFile, this.optionsToExtend, this).resolvedTypeReferenceDirective;
});
};
}
}
getProgram() {
return this.program.getProgram().getProgram();
}
getAllKnownFiles() {
return this.knownFiles;
}
processChanges() {
return __awaiter(this, void 0, void 0, function* () {
if (!this.lastProcessing) {
const initialCompile = new Promise(resolve => {
this.afterCompile = () => {
resolve(this.gatheredDiagnostic);
this.afterCompile = () => {
/* do nothing */
};
this.compilationStarted = false;
};
});
this.lastProcessing = initialCompile;
this.program = this.typescript.createWatchProgram(this);
const errors = yield initialCompile;
return {
results: errors,
updatedFiles: Array.from(this.knownFiles),
removedFiles: []
};
}
// since we do not have a way to pass cancellation token to typescript,
// we just wait until previous compilation finishes.
yield this.lastProcessing;
const previousDiagnostic = this.gatheredDiagnostic;
this.gatheredDiagnostic = [];
const resultPromise = new Promise(resolve => {
this.afterCompile = () => {
resolve(this.gatheredDiagnostic);
this.afterCompile = () => {
/* do nothing */
};
this.compilationStarted = false;
};
});
this.lastProcessing = resultPromise;
const files = [];
this.directoryWatchers.forEach(item => {
for (const e of item.events) {
item.callback(e.fileName);
}
item.events.length = 0;
});
const updatedFiles = [];
const removedFiles = [];
this.fileWatchers.forEach(item => {
for (const e of item.events) {
item.callback(e.fileName, e.eventKind);
files.push(e.fileName);
if (e.eventKind === this.typescript.FileWatcherEventKind.Created ||
e.eventKind === this.typescript.FileWatcherEventKind.Changed) {
updatedFiles.push(e.fileName);
}
else if (e.eventKind === this.typescript.FileWatcherEventKind.Deleted) {
removedFiles.push(e.fileName);
}
}
item.events.length = 0;
});
// if the files are not relevant to typescript it may choose not to compile
// in this case we need to trigger promise resolution from here
if (!this.compilationStarted) {
// keep diagnostic from previous run
this.gatheredDiagnostic = previousDiagnostic;
this.afterCompile();
return {
results: this.gatheredDiagnostic,
updatedFiles: [],
removedFiles: []
};
}
const results = yield resultPromise;
return { results, updatedFiles, removedFiles };
});
}
setTimeout(callback, _ms, ...args) {
// There are 2 things we are hacking here:
// 1. This method only called from watch program to wait until all files
// are written to filesystem (for example, when doing 'save all')
// We are intercepting all change notifications, and letting
// them through only when webpack starts processing changes.
// Therefore, at this point normally files are already all saved,
// so we do not need to waste another 250ms (hardcoded in TypeScript).
// On the other hand there may be occasional glitch, when our incremental
// compiler will receive the notification too late, and process it when
// next compilation would start.
// 2. It seems to be only reliable way to intercept a moment when TypeScript
// actually starts compilation.
//
// Ideally we probably should not let TypeScript call all those watching
// methods by itself, and instead forward changes from webpack.
// Unfortunately, at the moment TypeScript incremental API is quite
// immature (for example, minor changes in how you use it cause
// dramatic compilation time increase), so we have to stick with these
// hacks for now.
this.compilationStarted = true;
return this.typescript.sys.setTimeout(callback, 1, args);
}
clearTimeout(timeoutId) {
this.typescript.sys.clearTimeout(timeoutId);
}
onWatchStatusChange(_diagnostic, _newLine, _options) {
// do nothing
}
watchDirectory(path, callback, recursive) {
const slot = { callback, events: [] };
const node = this.directoryWatchers.add(slot);
this.tsHost.watchDirectory(path, fileName => {
slot.events.push({ fileName });
}, recursive);
return {
close: () => {
node.detachSelf();
}
};
}
watchFile(path, callback, _pollingInterval) {
const slot = { callback, events: [] };
const node = this.fileWatchers.add(slot);
this.knownFiles.add(path);
this.tsHost.watchFile(path, (fileName, eventKind) => {
if (eventKind === this.typescript.FileWatcherEventKind.Created) {
this.knownFiles.add(fileName);
}
else if (eventKind === this.typescript.FileWatcherEventKind.Deleted) {
this.knownFiles.delete(fileName);
}
slot.events.push({ fileName, eventKind });
}, _pollingInterval);
return {
close: () => {
node.detachSelf();
}
};
}
fileExists(path) {
return this.tsHost.fileExists(path);
}
readFile(path, encoding) {
const content = this.tsHost.readFile(path, encoding);
// get typescript contents from Vue file
if (content && VueProgram_1.VueProgram.isVue(path)) {
const resolved = VueProgram_1.VueProgram.resolveScriptBlock(this.typescript, content);
return resolved.content;
}
return content;
}
directoryExists(path) {
return ((this.tsHost.directoryExists && this.tsHost.directoryExists(path)) ||
false);
}
getDirectories(path) {
return ((this.tsHost.getDirectories && this.tsHost.getDirectories(path)) || []);
}
readDirectory(path, extensions, exclude, include, depth) {
return this.typescript.sys.readDirectory(path, extensions, exclude, include, depth);
}
getCurrentDirectory() {
return this.tsHost.getCurrentDirectory();
}
getDefaultLibFileName(options) {
return this.tsHost.getDefaultLibFileName(options);
}
getEnvironmentVariable(name) {
return (this.tsHost.getEnvironmentVariable &&
this.tsHost.getEnvironmentVariable(name));
}
getNewLine() {
return this.tsHost.getNewLine();
}
realpath(path) {
return this.tsHost.realpath(path);
}
trace(s) {
if (this.tsHost.trace) {
this.tsHost.trace(s);
}
}
useCaseSensitiveFileNames() {
return this.tsHost.useCaseSensitiveFileNames();
}
onUnRecoverableConfigFileDiagnostic(_diag) {
// do nothing
}
afterProgramCreate(program) {
// all actual diagnostics happens here
this.tsHost.afterProgramCreate(program);
this.afterCompile();
}
// the functions below are use internally by typescript. we cannot use non-emitting version of incremental watching API
// because it is
// - much slower for some reason,
// - writes files anyway (o_O)
// - has different way of providing diagnostics. (with this version we can at least reliably get it from afterProgramCreate)
createDirectory(_path) {
// pretend everything was ok
}
writeFile(_path, _data, _writeByteOrderMark) {
// pretend everything was ok
}
onCachedDirectoryStructureHostCreate(_host) {
// pretend everything was ok
}
}
exports.CompilerHost = CompilerHost;
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