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Fix emit for object rest on a module export (#32699)

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* Fix emit for object rest on a module export

* Add tests for exports of empty object/array binding patterns

* Add delay for exec to ensure diff tool has enough time to start
This commit is contained in:
Ron Buckton 2019-08-05 16:53:21 -07:00 committed by GitHub
parent 3b54ffcf0e
commit e3f4979736
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
38 changed files with 374 additions and 28 deletions
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4
Gulpfile.js
View file

@ -436,10 +436,10 @@ task("runtests-parallel").flags = {
" --shardId": "1-based ID of this shard (default: 1)",
};
task("diff", () => exec(getDiffTool(), [refBaseline, localBaseline], { ignoreExitCode: true }));
task("diff", () => exec(getDiffTool(), [refBaseline, localBaseline], { ignoreExitCode: true, waitForExit: false }));
task("diff").description = "Diffs the compiler baselines using the diff tool specified by the 'DIFF' environment variable";
task("diff-rwc", () => exec(getDiffTool(), [refRwcBaseline, localRwcBaseline], { ignoreExitCode: true }));
task("diff-rwc", () => exec(getDiffTool(), [refRwcBaseline, localRwcBaseline], { ignoreExitCode: true, waitForExit: false }));
task("diff-rwc").description = "Diffs the RWC baselines using the diff tool specified by the 'DIFF' environment variable";
/**

38
scripts/build/utils.js
View file

@ -25,10 +25,11 @@ const isWindows = /^win/.test(process.platform);
* @property {boolean} [ignoreExitCode]
* @property {import("prex").CancellationToken} [cancelToken]
* @property {boolean} [hidePrompt]
* @property {boolean} [waitForExit=true]
*/
function exec(cmd, args, options = {}) {
return /**@type {Promise<{exitCode: number}>}*/(new Promise((resolve, reject) => {
const { ignoreExitCode, cancelToken = CancellationToken.none } = options;
const { ignoreExitCode, cancelToken = CancellationToken.none, waitForExit = true } = options;
cancelToken.throwIfCancellationRequested();
// TODO (weswig): Update child_process types to add windowsVerbatimArguments to the type definition
@ -36,26 +37,33 @@ function exec(cmd, args, options = {}) {
const command = isWindows ? [possiblyQuote(cmd), ...args] : [`${cmd} ${args.join(" ")}`];
if (!options.hidePrompt) log(`> ${chalk.green(cmd)} ${args.join(" ")}`);
const proc = spawn(isWindows ? "cmd" : "/bin/sh", [subshellFlag, ...command], { stdio: "inherit", windowsVerbatimArguments: true });
const proc = spawn(isWindows ? "cmd" : "/bin/sh", [subshellFlag, ...command], { stdio: waitForExit ? "inherit" : "ignore", windowsVerbatimArguments: true });
const registration = cancelToken.register(() => {
log(`${chalk.red("killing")} '${chalk.green(cmd)} ${args.join(" ")}'...`);
proc.kill("SIGINT");
proc.kill("SIGTERM");
reject(new CancelError());
});
proc.on("exit", exitCode => {
registration.unregister();
if (exitCode === 0 || ignoreExitCode) {
resolve({ exitCode });
}
else {
reject(new Error(`Process exited with code: ${exitCode}`));
}
});
proc.on("error", error => {
registration.unregister();
reject(error);
});
if (waitForExit) {
proc.on("exit", exitCode => {
registration.unregister();
if (exitCode === 0 || ignoreExitCode) {
resolve({ exitCode });
}
else {
reject(new Error(`Process exited with code: ${exitCode}`));
}
});
proc.on("error", error => {
registration.unregister();
reject(error);
});
}
else {
proc.unref();
// wait a short period in order to allow the process to start successfully before Node exits.
setTimeout(() => resolve({ exitCode: undefined }), 100);
}
}));
}
exports.exec = exec;

30
src/compiler/transformers/es2018.ts
View file

@ -22,6 +22,7 @@ namespace ts {
const previousOnSubstituteNode = context.onSubstituteNode;
context.onSubstituteNode = onSubstituteNode;
let exportedVariableStatement = false;
let enabledSubstitutions: ESNextSubstitutionFlags;
let enclosingFunctionFlags: FunctionFlags;
let enclosingSuperContainerFlags: NodeCheckFlags = 0;
@ -40,6 +41,7 @@ namespace ts {
return node;
}
exportedVariableStatement = false;
const visited = visitEachChild(node, visitor, context);
addEmitHelpers(visited, context.readEmitHelpers());
return visited;
@ -79,6 +81,8 @@ namespace ts {
return visitBinaryExpression(node as BinaryExpression, noDestructuringValue);
case SyntaxKind.CatchClause:
return visitCatchClause(node as CatchClause);
case SyntaxKind.VariableStatement:
return visitVariableStatement(node as VariableStatement);
case SyntaxKind.VariableDeclaration:
return visitVariableDeclaration(node as VariableDeclaration);
case SyntaxKind.ForOfStatement:
@ -321,19 +325,43 @@ namespace ts {
return visitEachChild(node, visitor, context);
}
function visitVariableStatement(node: VariableStatement): VisitResult<VariableStatement> {
if (hasModifier(node, ModifierFlags.Export)) {
const savedExportedVariableStatement = exportedVariableStatement;
exportedVariableStatement = true;
const visited = visitEachChild(node, visitor, context);
exportedVariableStatement = savedExportedVariableStatement;
return visited;
}
return visitEachChild(node, visitor, context);
}
/**
* Visits a VariableDeclaration node with a binding pattern.
*
* @param node A VariableDeclaration node.
*/
function visitVariableDeclaration(node: VariableDeclaration): VisitResult<VariableDeclaration> {
if (exportedVariableStatement) {
const savedExportedVariableStatement = exportedVariableStatement;
exportedVariableStatement = false;
const visited = visitVariableDeclarationWorker(node, /*exportedVariableStatement*/ true);
exportedVariableStatement = savedExportedVariableStatement;
return visited;
}
return visitVariableDeclarationWorker(node, /*exportedVariableStatement*/ false);
}
function visitVariableDeclarationWorker(node: VariableDeclaration, exportedVariableStatement: boolean): VisitResult<VariableDeclaration> {
// If we are here it is because the name contains a binding pattern with a rest somewhere in it.
if (isBindingPattern(node.name) && node.name.transformFlags & TransformFlags.ContainsObjectRestOrSpread) {
return flattenDestructuringBinding(
node,
visitor,
context,
FlattenLevel.ObjectRest
FlattenLevel.ObjectRest,
/*rval*/ undefined,
exportedVariableStatement
);
}
return visitEachChild(node, visitor, context);

2
src/harness/harness.ts
View file

@ -726,6 +726,7 @@ namespace Harness {
includeBuiltFile?: string;
baselineFile?: string;
libFiles?: string;
noTypesAndSymbols?: boolean;
}
// Additional options not already in ts.optionDeclarations
@ -742,6 +743,7 @@ namespace Harness {
{ name: "currentDirectory", type: "string" },
{ name: "symlink", type: "string" },
{ name: "link", type: "string" },
{ name: "noTypesAndSymbols", type: "boolean" },
// Emitted js baseline will print full paths for every output file
{ name: "fullEmitPaths", type: "boolean" }
];

49
src/testRunner/compilerRunner.ts
View file

@ -58,16 +58,18 @@ class CompilerBaselineRunner extends RunnerBase {
}
public checkTestCodeOutput(fileName: string, test?: CompilerFileBasedTest) {
if (test && test.configurations) {
if (test && ts.some(test.configurations)) {
test.configurations.forEach(configuration => {
describe(`${this.testSuiteName} tests for ${fileName}${configuration ? ` (${Harness.getFileBasedTestConfigurationDescription(configuration)})` : ``}`, () => {
this.runSuite(fileName, test, configuration);
});
});
}
describe(`${this.testSuiteName} tests for ${fileName}`, () => {
this.runSuite(fileName, test);
});
else {
describe(`${this.testSuiteName} tests for ${fileName}`, () => {
this.runSuite(fileName, test);
});
}
}
private runSuite(fileName: string, test?: CompilerFileBasedTest, configuration?: Harness.FileBasedTestConfiguration) {
@ -112,6 +114,7 @@ class CompilerBaselineRunner extends RunnerBase {
class CompilerTest {
private fileName: string;
private justName: string;
private configuredName: string;
private lastUnit: Harness.TestCaseParser.TestUnitData;
private harnessSettings: Harness.TestCaseParser.CompilerSettings;
private hasNonDtsFiles: boolean;
@ -126,6 +129,25 @@ class CompilerTest {
constructor(fileName: string, testCaseContent?: Harness.TestCaseParser.TestCaseContent, configurationOverrides?: Harness.TestCaseParser.CompilerSettings) {
this.fileName = fileName;
this.justName = vpath.basename(fileName);
this.configuredName = this.justName;
if (configurationOverrides) {
let configuredName = "";
const keys = Object
.keys(configurationOverrides)
.map(k => k.toLowerCase())
.sort();
for (const key of keys) {
if (configuredName) {
configuredName += ",";
}
configuredName += `${key}=${configurationOverrides[key].toLowerCase()}`;
}
if (configuredName) {
const extname = vpath.extname(this.justName);
const basename = vpath.basename(this.justName, extname, /*ignoreCase*/ true);
this.configuredName = `${basename}(${configuredName})${extname}`;
}
}
const rootDir = fileName.indexOf("conformance") === -1 ? "tests/cases/compiler/" : ts.getDirectoryPath(fileName) + "/";
@ -205,7 +227,7 @@ class CompilerTest {
public verifyDiagnostics() {
// check errors
Harness.Compiler.doErrorBaseline(
this.justName,
this.configuredName,
this.tsConfigFiles.concat(this.toBeCompiled, this.otherFiles),
this.result.diagnostics,
!!this.options.pretty);
@ -213,7 +235,7 @@ class CompilerTest {
public verifyModuleResolution() {
if (this.options.traceResolution) {
Harness.Baseline.runBaseline(this.justName.replace(/\.tsx?$/, ".trace.json"),
Harness.Baseline.runBaseline(this.configuredName.replace(/\.tsx?$/, ".trace.json"),
JSON.stringify(this.result.traces.map(utils.sanitizeTraceResolutionLogEntry), undefined, 4));
}
}
@ -225,14 +247,14 @@ class CompilerTest {
// Because of the noEmitOnError option no files are created. We need to return null because baselining isn't required.
? null // tslint:disable-line no-null-keyword
: record;
Harness.Baseline.runBaseline(this.justName.replace(/\.tsx?$/, ".sourcemap.txt"), baseline);
Harness.Baseline.runBaseline(this.configuredName.replace(/\.tsx?$/, ".sourcemap.txt"), baseline);
}
}
public verifyJavaScriptOutput() {
if (this.hasNonDtsFiles) {
Harness.Compiler.doJsEmitBaseline(
this.justName,
this.configuredName,
this.fileName,
this.options,
this.result,
@ -245,7 +267,7 @@ class CompilerTest {
public verifySourceMapOutput() {
Harness.Compiler.doSourcemapBaseline(
this.justName,
this.configuredName,
this.options,
this.result,
this.harnessSettings);
@ -256,8 +278,15 @@ class CompilerTest {
return;
}
const noTypesAndSymbols =
this.harnessSettings.noTypesAndSymbols &&
this.harnessSettings.noTypesAndSymbols.toLowerCase() === "true";
if (noTypesAndSymbols) {
return;
}
Harness.Compiler.doTypeAndSymbolBaseline(
this.justName,
this.configuredName,
this.result.program!,
this.toBeCompiled.concat(this.otherFiles).filter(file => !!this.result.program!.getSourceFile(file.unitName)),
/*opts*/ undefined,

10
tests/baselines/reference/exportEmptyArrayBindingPattern(module=amd,target=es5).js Normal file
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@ -0,0 +1,10 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
define(["require", "exports"], function (require, exports) {
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports._b = _a = [];
});

10
tests/baselines/reference/exportEmptyArrayBindingPattern(module=amd,target=esnext).js Normal file
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@ -0,0 +1,10 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
define(["require", "exports"], function (require, exports) {
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
_a = [];
});

8
tests/baselines/reference/exportEmptyArrayBindingPattern(module=commonjs,target=es5).js Normal file
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@ -0,0 +1,8 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports._b = _a = [];

8
tests/baselines/reference/exportEmptyArrayBindingPattern(module=commonjs,target=esnext).js Normal file
View file

@ -0,0 +1,8 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
_a = [];

6
tests/baselines/reference/exportEmptyArrayBindingPattern(module=es2015,target=es5).js Normal file
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@ -0,0 +1,6 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
var _a;
export var _b = _a = [];

5
tests/baselines/reference/exportEmptyArrayBindingPattern(module=es2015,target=esnext).js Normal file
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@ -0,0 +1,5 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
export const [] = [];

6
tests/baselines/reference/exportEmptyArrayBindingPattern(module=esnext,target=es5).js Normal file
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@ -0,0 +1,6 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
var _a;
export var _b = _a = [];

5
tests/baselines/reference/exportEmptyArrayBindingPattern(module=esnext,target=esnext).js Normal file
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@ -0,0 +1,5 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
export const [] = [];

15
tests/baselines/reference/exportEmptyArrayBindingPattern(module=system,target=es5).js Normal file
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@ -0,0 +1,15 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
System.register([], function (exports_1, context_1) {
"use strict";
var _a, _b;
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
exports_1("_b", _b = _a = []);
}
};
});

15
tests/baselines/reference/exportEmptyArrayBindingPattern(module=system,target=esnext).js Normal file
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@ -0,0 +1,15 @@
//// [exportEmptyArrayBindingPattern.ts]
export const [] = [];
//// [exportEmptyArrayBindingPattern.js]
System.register([], function (exports_1, context_1) {
"use strict";
var _a;
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
_a = [];
}
};
});

10
tests/baselines/reference/exportEmptyObjectBindingPattern(module=amd,target=es5).js Normal file
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@ -0,0 +1,10 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
define(["require", "exports"], function (require, exports) {
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports._b = _a = {};
});

10
tests/baselines/reference/exportEmptyObjectBindingPattern(module=amd,target=esnext).js Normal file
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@ -0,0 +1,10 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
define(["require", "exports"], function (require, exports) {
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
_a = {};
});

8
tests/baselines/reference/exportEmptyObjectBindingPattern(module=commonjs,target=es5).js Normal file
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@ -0,0 +1,8 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports._b = _a = {};

8
tests/baselines/reference/exportEmptyObjectBindingPattern(module=commonjs,target=esnext).js Normal file
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@ -0,0 +1,8 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
_a = {};

6
tests/baselines/reference/exportEmptyObjectBindingPattern(module=es2015,target=es5).js Normal file
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@ -0,0 +1,6 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
var _a;
export var _b = _a = {};

5
tests/baselines/reference/exportEmptyObjectBindingPattern(module=es2015,target=esnext).js Normal file
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@ -0,0 +1,5 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
export const {} = {};

6
tests/baselines/reference/exportEmptyObjectBindingPattern(module=esnext,target=es5).js Normal file
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@ -0,0 +1,6 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
var _a;
export var _b = _a = {};

5
tests/baselines/reference/exportEmptyObjectBindingPattern(module=esnext,target=esnext).js Normal file
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@ -0,0 +1,5 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
export const {} = {};

15
tests/baselines/reference/exportEmptyObjectBindingPattern(module=system,target=es5).js Normal file
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@ -0,0 +1,15 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
System.register([], function (exports_1, context_1) {
"use strict";
var _a, _b;
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
exports_1("_b", _b = _a = {});
}
};
});

15
tests/baselines/reference/exportEmptyObjectBindingPattern(module=system,target=esnext).js Normal file
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@ -0,0 +1,15 @@
//// [exportEmptyObjectBindingPattern.ts]
export const {} = {};
//// [exportEmptyObjectBindingPattern.js]
System.register([], function (exports_1, context_1) {
"use strict";
var _a;
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
_a = {};
}
};
});

10
tests/baselines/reference/exportObjectRest(module=amd,target=es5).js Normal file
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@ -0,0 +1,10 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
define(["require", "exports"], function (require, exports) {
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.x = (_a = { x: 'x', y: 'y' }, _a).x, exports.rest = __rest(_a, ["x"]);
});

10
tests/baselines/reference/exportObjectRest(module=amd,target=esnext).js Normal file
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@ -0,0 +1,10 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
define(["require", "exports"], function (require, exports) {
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
_a = { x: 'x', y: 'y' }, exports.x = _a.x, exports.rest = __rest(_a, ["x"]);
});

8
tests/baselines/reference/exportObjectRest(module=commonjs,target=es5).js Normal file
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@ -0,0 +1,8 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.x = (_a = { x: 'x', y: 'y' }, _a).x, exports.rest = __rest(_a, ["x"]);

8
tests/baselines/reference/exportObjectRest(module=commonjs,target=esnext).js Normal file
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@ -0,0 +1,8 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
_a = { x: 'x', y: 'y' }, exports.x = _a.x, exports.rest = __rest(_a, ["x"]);

6
tests/baselines/reference/exportObjectRest(module=es2015,target=es5).js Normal file
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@ -0,0 +1,6 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
var _a;
export var x = (_a = { x: 'x', y: 'y' }, _a).x, rest = __rest(_a, ["x"]);

5
tests/baselines/reference/exportObjectRest(module=es2015,target=esnext).js Normal file
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@ -0,0 +1,5 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
export const { x, ...rest } = { x: 'x', y: 'y' };

6
tests/baselines/reference/exportObjectRest(module=esnext,target=es5).js Normal file
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@ -0,0 +1,6 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
var _a;
export var x = (_a = { x: 'x', y: 'y' }, _a).x, rest = __rest(_a, ["x"]);

5
tests/baselines/reference/exportObjectRest(module=esnext,target=esnext).js Normal file
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@ -0,0 +1,5 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
export const { x, ...rest } = { x: 'x', y: 'y' };

15
tests/baselines/reference/exportObjectRest(module=system,target=es5).js Normal file
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@ -0,0 +1,15 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
System.register([], function (exports_1, context_1) {
"use strict";
var _a, x, rest;
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
exports_1("x", x = (_a = { x: 'x', y: 'y' }, _a).x), exports_1("rest", rest = __rest(_a, ["x"]));
}
};
});

15
tests/baselines/reference/exportObjectRest(module=system,target=esnext).js Normal file
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@ -0,0 +1,15 @@
//// [exportObjectRest.ts]
export const { x, ...rest } = { x: 'x', y: 'y' };
//// [exportObjectRest.js]
System.register([], function (exports_1, context_1) {
"use strict";
var _a, x, rest;
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
_a = { x: 'x', y: 'y' }, exports_1("x", x = _a.x), exports_1("rest", rest = __rest(_a, ["x"]));
}
};
});

5
tests/cases/compiler/exportEmptyArrayBindingPattern.ts Normal file
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@ -0,0 +1,5 @@
// @module: commonjs,amd,system,es2015,esnext
// @target: esnext,es5
// @noEmitHelpers: true
// @noTypesAndSymbols: true
export const [] = [];

5
tests/cases/compiler/exportEmptyObjectBindingPattern.ts Normal file
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@ -0,0 +1,5 @@
// @module: commonjs,amd,system,es2015,esnext
// @target: esnext,es5
// @noEmitHelpers: true
// @noTypesAndSymbols: true
export const {} = {};

5
tests/cases/compiler/exportObjectRest.ts Normal file
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@ -0,0 +1,5 @@
// @module: commonjs,amd,system,es2015,esnext
// @target: esnext,es5
// @noEmitHelpers: true
// @noTypesAndSymbols: true
export const { x, ...rest } = { x: 'x', y: 'y' };