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Require decoratorsBeforeExport option for decorators (#8465)

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* Require decoratorsBeforeExport option for syntax-decorators

* Also babylon

* Enable test
This commit is contained in:
Nicolò Ribaudo
2018-08-15 09:04:52 +02:00
committed by GitHub
parent 1e0b649485
commit d79b5eeeff
14 changed files with 111 additions and 24 deletions
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25
packages/babel-parser/src/plugin-utils.js
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@@ -41,13 +41,26 @@ export function getPluginOption(
const PIPELINE_PROPOSALS = ["minimal"];
export function validatePlugins(plugins: PluginList) {
if (
hasPlugin(plugins, "decorators") &&
hasPlugin(plugins, "decorators-legacy")
) {
throw new Error(
"Cannot use the decorators and decorators-legacy plugin together",
if (hasPlugin(plugins, "decorators")) {
if (hasPlugin(plugins, "decorators-legacy")) {
throw new Error(
"Cannot use the decorators and decorators-legacy plugin together",
);
}
const decoratorsBeforeExport = getPluginOption(
plugins,
"decorators",
"decoratorsBeforeExport",
);
if (decoratorsBeforeExport == null) {
throw new Error(
"The 'decorators' plugin requires a" +
" 'decoratorsBeforeExport' option, whose value must be a boolean.",
);
} else if (typeof decoratorsBeforeExport !== "boolean") {
throw new Error("'decoratorsBeforeExport' must be a boolean.");
}
}
if (hasPlugin(plugins, "flow") && hasPlugin(plugins, "typescript")) {

6
packages/babel-parser/test/fixtures/experimental/decorators-2/class-property/options.json vendored
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@@ -1,3 +1,7 @@
{
"plugins": ["classProperties", "classPrivateProperties", "decorators"]
"plugins": [
"classProperties",
"classPrivateProperties",
["decorators", { "decoratorsBeforeExport": false }]
]
}

5
packages/babel-parser/test/fixtures/experimental/decorators-2/compued-property/options.json vendored
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@@ -1,3 +1,6 @@
{
"plugins": ["decorators", "classProperties"]
"plugins": [
["decorators", { "decoratorsBeforeExport": false }],
"classProperties"
]
}

0
packages/babel-parser/test/fixtures/experimental/decorators-2/decoratorsBeforeExport-boolean/input.js vendored Normal file
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6
packages/babel-parser/test/fixtures/experimental/decorators-2/decoratorsBeforeExport-boolean/options.json vendored Normal file
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@@ -0,0 +1,6 @@
{
"plugins": [
["decorators", { "decoratorsBeforeExport": "yes" }]
],
"throws": "'decoratorsBeforeExport' must be a boolean."
}

0
packages/babel-parser/test/fixtures/experimental/decorators-2/decoratorsBeforeExport-required/input.js vendored Normal file
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4
packages/babel-parser/test/fixtures/experimental/decorators-2/decoratorsBeforeExport-required/options.json vendored Normal file
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@@ -0,0 +1,4 @@
{
"plugins": ["decorators"],
"throws": "The 'decorators' plugin requires a 'decoratorsBeforeExport' option, whose value must be a boolean."
}

4
packages/babel-parser/test/fixtures/experimental/decorators-2/options.json vendored
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@@ -1,3 +1,5 @@
{
"plugins": ["decorators"]
"plugins": [
["decorators", { "decoratorsBeforeExport": false }]
]
}

6
packages/babel-parser/test/fixtures/experimental/decorators-2/private-property/options.json vendored
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@@ -1,3 +1,7 @@
{
"plugins": ["classProperties", "classPrivateProperties", "decorators"]
"plugins": [
"classProperties",
"classPrivateProperties",
["decorators", { "decoratorsBeforeExport": false }]
]
}

5
packages/babel-parser/test/fixtures/experimental/decorators-2/static-property/options.json vendored
View File

@@ -1,3 +1,6 @@
{
"plugins": ["classProperties", "decorators"]
"plugins": [
"classProperties",
["decorators", { "decoratorsBeforeExport": false }]
]
}

55
packages/babel-parser/test/plugin-options.js
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@@ -9,19 +9,56 @@ describe("plugin options", function() {
// NOTE: This test is not specific about decorators, it can be applied
// to any plugin with options.
const NAME = "decorators";
const OPT_1 = [NAME, { decoratorsBeforeExport: true }];
const OPT_2 = [NAME, { decoratorsBeforeExport: false }];
const SYNTAX_1 = "@dec export class C {}";
const SYNTAX_2 = "export @dec class C {}";
const SYNTAX_DEFAULT = "export @dec class C {}";
it("when they aren't specified", function() {
expect(getParser(SYNTAX_DEFAULT, [NAME, OPT_1])).not.toThrow();
expect(getParser(SYNTAX_DEFAULT, [NAME, OPT_2])).not.toThrow();
const WITHOUT_FLAG = "flow";
const WITH_FLAG = ["flow", { all: true }];
const CODE = "new Foo<x>(y)";
const AST_WITHOUT_FLAG = {
type: "BinaryExpression",
operator: ">",
left: {
type: "BinaryExpression",
operator: "<",
left: { type: "NewExpression" },
right: { type: "Identifier" },
},
right: { type: "Identifier", extra: { parenthesized: true } },
};
const AST_WITH_FLAG = {
type: "NewExpression",
callee: { type: "Identifier" },
arguments: [{ type: "Identifier" }],
typeArguments: {
type: "TypeParameterInstantiation",
params: [
{ type: "GenericTypeAnnotation", id: { type: "Identifier" } },
],
},
};
expect(
getParser(CODE, [WITHOUT_FLAG, WITH_FLAG])().program.body[0].expression,
).toMatchObject(AST_WITHOUT_FLAG);
expect(
getParser(CODE, [WITHOUT_FLAG])().program.body[0].expression,
).toMatchObject(AST_WITHOUT_FLAG);
expect(
getParser(CODE, [WITH_FLAG])().program.body[0].expression,
).toMatchObject(AST_WITH_FLAG);
});
it("when they are specified", function() {
const NAME = "decorators";
const OPT_1 = [NAME, { decoratorsBeforeExport: true }];
const OPT_2 = [NAME, { decoratorsBeforeExport: false }];
const SYNTAX_1 = "@dec export class C {}";
const SYNTAX_2 = "export @dec class C {}";
expect(getParser(SYNTAX_1, [OPT_1, OPT_2])).not.toThrow();
expect(getParser(SYNTAX_2, [OPT_2, OPT_1])).not.toThrow();
expect(getParser(SYNTAX_1, [OPT_2, OPT_1])).toThrow();