webpack/lib/dependencies/HarmonyExportDependencyPars...

63 lines
2.6 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var AbstractPlugin = require("../AbstractPlugin");
var HarmonyExportExpressionDependency = require("./HarmonyExportExpressionDependency");
var HarmonyExportHeaderDependency = require("./HarmonyExportHeaderDependency");
var HarmonyExportSpecifierDependency = require("./HarmonyExportSpecifierDependency");
var HarmonyExportImportedSpecifierDependency = require("./HarmonyExportImportedSpecifierDependency");
var HarmonyImportDependency = require("./HarmonyImportDependency");
var HarmonyModulesHelpers = require("./HarmonyModulesHelpers");
module.exports = AbstractPlugin.create({
"export": function(statement) {
var dep = new HarmonyExportHeaderDependency(statement.declaration && statement.declaration.range, statement.range);
dep.loc = statement.loc;
this.state.current.addDependency(dep);
this.state.module.meta.harmonyModule = true;
return true;
},
"export import": function(statement, source) {
var dep = new HarmonyImportDependency(source, HarmonyModulesHelpers.getNewModuleVar(this.state, source), statement.range);
dep.loc = statement.loc;
this.state.current.addDependency(dep);
this.state.lastHarmoryImport = dep;
this.state.module.meta.harmonyModule = true;
return true;
},
"export expression": function(statement, expr) {
var dep = new HarmonyExportExpressionDependency(this.state.module, expr.range, statement.range);
dep.loc = statement.loc;
this.state.current.addDependency(dep);
return true;
},
"export declaration": function() {},
"export specifier": function(statement, id, name) {
var immutable = isImmutableStatement(statement.declaration);
var hoisted = isHoistedStatement(statement.declaration);
var dep = new HarmonyExportSpecifierDependency(this.state.module, id, name, hoisted ? 0 : (statement.range[1] + 0.5), immutable);
dep.loc = statement.loc;
this.state.current.addDependency(dep);
return true;
},
"export import specifier": function(statement, source, id, name) {
var dep = new HarmonyExportImportedSpecifierDependency(this.state.module, this.state.lastHarmoryImport, HarmonyModulesHelpers.getModuleVar(this.state, source), id, name, 0);
dep.loc = statement.loc;
this.state.current.addDependency(dep);
return true;
}
});
function isImmutableStatement(statement) {
if(statement.type === "FunctionDeclaration") return true;
if(statement.type === "ClassDeclaration") return true;
return false;
}
function isHoistedStatement(statement) {
if(statement.type === "FunctionDeclaration") return true;
if(statement.type === "VariableDeclarators" && statement.kind === "var") return true;
return false;
}