127 lines
3.1 KiB
JavaScript
127 lines
3.1 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const {
|
|
evaluateToString,
|
|
expressionIsUnsupported,
|
|
getModulePath,
|
|
toConstantDependency
|
|
} = require("../JavascriptParserHelpers");
|
|
const WebpackError = require("../WebpackError");
|
|
const ProvidedDependency = require("./ProvidedDependency");
|
|
const systemBuildin = require.resolve("../../buildin/system");
|
|
|
|
class SystemPlugin {
|
|
constructor(options) {
|
|
this.options = options;
|
|
}
|
|
|
|
apply(compiler) {
|
|
compiler.hooks.compilation.tap(
|
|
"SystemPlugin",
|
|
(compilation, { normalModuleFactory }) => {
|
|
compilation.dependencyFactories.set(
|
|
ProvidedDependency,
|
|
normalModuleFactory
|
|
);
|
|
compilation.dependencyTemplates.set(
|
|
ProvidedDependency,
|
|
new ProvidedDependency.Template()
|
|
);
|
|
|
|
const handler = (parser, parserOptions) => {
|
|
if (parserOptions.system === undefined || !parserOptions.system) {
|
|
return;
|
|
}
|
|
|
|
const setNotSupported = name => {
|
|
parser.hooks.evaluateTypeof
|
|
.for(name)
|
|
.tap("SystemPlugin", evaluateToString("undefined"));
|
|
parser.hooks.expression
|
|
.for(name)
|
|
.tap(
|
|
"SystemPlugin",
|
|
expressionIsUnsupported(
|
|
parser,
|
|
name + " is not supported by webpack."
|
|
)
|
|
);
|
|
};
|
|
|
|
parser.hooks.typeof
|
|
.for("System.import")
|
|
.tap(
|
|
"SystemPlugin",
|
|
toConstantDependency(parser, JSON.stringify("function"))
|
|
);
|
|
parser.hooks.evaluateTypeof
|
|
.for("System.import")
|
|
.tap("SystemPlugin", evaluateToString("function"));
|
|
parser.hooks.typeof
|
|
.for("System")
|
|
.tap(
|
|
"SystemPlugin",
|
|
toConstantDependency(parser, JSON.stringify("object"))
|
|
);
|
|
parser.hooks.evaluateTypeof
|
|
.for("System")
|
|
.tap("SystemPlugin", evaluateToString("object"));
|
|
|
|
setNotSupported("System.set");
|
|
setNotSupported("System.get");
|
|
setNotSupported("System.register");
|
|
|
|
parser.hooks.expression.for("System").tap("SystemPlugin", expr => {
|
|
const dep = new ProvidedDependency(
|
|
getModulePath(parser.state.module.context, systemBuildin),
|
|
"System",
|
|
null,
|
|
expr.range
|
|
);
|
|
dep.loc = expr.loc;
|
|
parser.state.module.addDependency(dep);
|
|
return true;
|
|
});
|
|
|
|
parser.hooks.call.for("System.import").tap("SystemPlugin", expr => {
|
|
parser.state.module.warnings.push(
|
|
new SystemImportDeprecationWarning(expr.loc)
|
|
);
|
|
|
|
return parser.hooks.importCall.call(expr);
|
|
});
|
|
};
|
|
|
|
normalModuleFactory.hooks.parser
|
|
.for("javascript/auto")
|
|
.tap("SystemPlugin", handler);
|
|
normalModuleFactory.hooks.parser
|
|
.for("javascript/dynamic")
|
|
.tap("SystemPlugin", handler);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
class SystemImportDeprecationWarning extends WebpackError {
|
|
constructor(loc) {
|
|
super(
|
|
"System.import() is deprecated and will be removed soon. Use import() instead.\n" +
|
|
"For more info visit https://webpack.js.org/guides/code-splitting/"
|
|
);
|
|
|
|
this.name = "SystemImportDeprecationWarning";
|
|
|
|
this.loc = loc;
|
|
|
|
Error.captureStackTrace(this, this.constructor);
|
|
}
|
|
}
|
|
|
|
module.exports = SystemPlugin;
|