webpack/lib/APIPlugin.js

45 lines
1.3 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var ConstDependency = require("./dependencies/ConstDependency");
var BasicEvaluatedExpression = require("./BasicEvaluatedExpression");
function APIPlugin() {
}
module.exports = APIPlugin;
var REPLACEMENTS = {
__webpack_public_path__: "require.modules.c",
__webpack_require__: "require",
__webpack_modules__: "require.modules",
__webpack_chunk_load__: "require.e",
};
var REPLACEMENT_TYPES = {
__webpack_public_path__: "string",
__webpack_require__: "function",
__webpack_modules__: "object",
__webpack_chunk_load__: "function",
};
var IGNORES = [
"call require.valueOf",
"expression require.onError",
];
APIPlugin.prototype.apply = function(compiler) {
Object.keys(REPLACEMENTS).forEach(function(key) {
compiler.parser.plugin("expression "+key, function(expr) {
var dep = new ConstDependency(REPLACEMENTS[key], expr.range);
dep.loc = expr.loc;
this.state.current.addDependency(dep);
return true;
});
compiler.parser.plugin("evaluate typeof "+key, function(expr) {
return new BasicEvaluatedExpression().setString(REPLACEMENT_TYPES[key]).setRange(expr.range);
});
});
IGNORES.forEach(function(key) {
compiler.parser.plugin(key, function(expr) {
return true;
});
});
};