wallet-core/node_modules/webpack/lib/dependencies/AMDDefineDependencyParserPlugin.js
2017-12-10 21:51:33 +01:00

267 lines
9.2 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const AMDRequireItemDependency = require("./AMDRequireItemDependency");
const AMDRequireContextDependency = require("./AMDRequireContextDependency");
const ConstDependency = require("./ConstDependency");
const AMDDefineDependency = require("./AMDDefineDependency");
const AMDRequireArrayDependency = require("./AMDRequireArrayDependency");
const LocalModuleDependency = require("./LocalModuleDependency");
const ContextDependencyHelpers = require("./ContextDependencyHelpers");
const LocalModulesHelpers = require("./LocalModulesHelpers");
function isBoundFunctionExpression(expr) {
if(expr.type !== "CallExpression") return false;
if(expr.callee.type !== "MemberExpression") return false;
if(expr.callee.computed) return false;
if(expr.callee.object.type !== "FunctionExpression") return false;
if(expr.callee.property.type !== "Identifier") return false;
if(expr.callee.property.name !== "bind") return false;
return true;
}
function isUnboundFunctionExpression(expr) {
if(expr.type === "FunctionExpression") return true;
if(expr.type === "ArrowFunctionExpression") return true;
return false;
}
function isCallable(expr) {
if(isUnboundFunctionExpression(expr)) return true;
if(isBoundFunctionExpression(expr)) return true;
return false;
}
class AMDDefineDependencyParserPlugin {
constructor(options) {
this.options = options;
}
newDefineDependency(range, arrayRange, functionRange, objectRange, namedModule) {
return new AMDDefineDependency(range, arrayRange, functionRange, objectRange, namedModule);
}
apply(parser) {
const options = this.options;
parser.plugin("call define", (expr) => {
let array, fn, obj, namedModule;
switch(expr.arguments.length) {
case 1:
if(isCallable(expr.arguments[0])) {
// define(f() {...})
fn = expr.arguments[0];
} else if(expr.arguments[0].type === "ObjectExpression") {
// define({...})
obj = expr.arguments[0];
} else {
// define(expr)
// unclear if function or object
obj = fn = expr.arguments[0];
}
break;
case 2:
if(expr.arguments[0].type === "Literal") {
namedModule = expr.arguments[0].value;
// define("...", ...)
if(isCallable(expr.arguments[1])) {
// define("...", f() {...})
fn = expr.arguments[1];
} else if(expr.arguments[1].type === "ObjectExpression") {
// define("...", {...})
obj = expr.arguments[1];
} else {
// define("...", expr)
// unclear if function or object
obj = fn = expr.arguments[1];
}
} else {
array = expr.arguments[0];
if(isCallable(expr.arguments[1])) {
// define([...], f() {})
fn = expr.arguments[1];
} else if(expr.arguments[1].type === "ObjectExpression") {
// define([...], {...})
obj = expr.arguments[1];
} else {
// define([...], expr)
// unclear if function or object
obj = fn = expr.arguments[1];
}
}
break;
case 3:
// define("...", [...], f() {...})
namedModule = expr.arguments[0].value;
array = expr.arguments[1];
if(isCallable(expr.arguments[2])) {
// define("...", [...], f() {})
fn = expr.arguments[2];
} else if(expr.arguments[2].type === "ObjectExpression") {
// define("...", [...], {...})
obj = expr.arguments[2];
} else {
// define("...", [...], expr)
// unclear if function or object
obj = fn = expr.arguments[2];
}
break;
default:
return;
}
let fnParams = null;
let fnParamsOffset = 0;
if(fn) {
if(isUnboundFunctionExpression(fn)) fnParams = fn.params;
else if(isBoundFunctionExpression(fn)) {
fnParams = fn.callee.object.params;
fnParamsOffset = fn.arguments.length - 1;
if(fnParamsOffset < 0) fnParamsOffset = 0;
}
}
let fnRenames = Object.create(parser.scope.renames);
let identifiers;
if(array) {
identifiers = {};
const param = parser.evaluateExpression(array);
const result = parser.applyPluginsBailResult("call define:amd:array", expr, param, identifiers, namedModule);
if(!result) return;
if(fnParams) fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
if(identifiers[idx]) {
fnRenames["$" + param.name] = identifiers[idx];
return false;
}
return true;
});
} else {
identifiers = ["require", "exports", "module"];
if(fnParams) fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
if(identifiers[idx]) {
fnRenames["$" + param.name] = identifiers[idx];
return false;
}
return true;
});
}
let inTry;
if(fn && isUnboundFunctionExpression(fn)) {
inTry = parser.scope.inTry;
parser.inScope(fnParams, () => {
parser.scope.renames = fnRenames;
parser.scope.inTry = inTry;
if(fn.body.type === "BlockStatement")
parser.walkStatement(fn.body);
else
parser.walkExpression(fn.body);
});
} else if(fn && isBoundFunctionExpression(fn)) {
inTry = parser.scope.inTry;
parser.inScope(fn.callee.object.params.filter((i) => ["require", "module", "exports"].indexOf(i.name) < 0), () => {
parser.scope.renames = fnRenames;
parser.scope.inTry = inTry;
if(fn.callee.object.body.type === "BlockStatement")
parser.walkStatement(fn.callee.object.body);
else
parser.walkExpression(fn.callee.object.body);
});
if(fn.arguments)
parser.walkExpressions(fn.arguments);
} else if(fn || obj) {
parser.walkExpression(fn || obj);
}
const dep = this.newDefineDependency(
expr.range,
array ? array.range : null,
fn ? fn.range : null,
obj ? obj.range : null,
namedModule ? namedModule : null
);
dep.loc = expr.loc;
if(namedModule) {
dep.localModule = LocalModulesHelpers.addLocalModule(parser.state, namedModule);
}
parser.state.current.addDependency(dep);
return true;
});
parser.plugin("call define:amd:array", (expr, param, identifiers, namedModule) => {
if(param.isArray()) {
param.items.forEach((param, idx) => {
if(param.isString() && ["require", "module", "exports"].indexOf(param.string) >= 0)
identifiers[idx] = param.string;
const result = parser.applyPluginsBailResult("call define:amd:item", expr, param, namedModule);
if(result === undefined) {
parser.applyPluginsBailResult("call define:amd:context", expr, param);
}
});
return true;
} else if(param.isConstArray()) {
const deps = [];
param.array.forEach((request, idx) => {
let dep;
let localModule;
if(request === "require") {
identifiers[idx] = request;
dep = "__webpack_require__";
} else if(["exports", "module"].indexOf(request) >= 0) {
identifiers[idx] = request;
dep = request;
} else if(localModule = LocalModulesHelpers.getLocalModule(parser.state, request)) { // eslint-disable-line no-cond-assign
dep = new LocalModuleDependency(localModule);
dep.loc = expr.loc;
parser.state.current.addDependency(dep);
} else {
dep = new AMDRequireItemDependency(request);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
}
deps.push(dep);
});
const dep = new AMDRequireArrayDependency(deps, param.range);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
});
parser.plugin("call define:amd:item", (expr, param, namedModule) => {
if(param.isConditional()) {
param.options.forEach((param) => {
const result = parser.applyPluginsBailResult("call define:amd:item", expr, param);
if(result === undefined) {
parser.applyPluginsBailResult("call define:amd:context", expr, param);
}
});
return true;
} else if(param.isString()) {
let dep, localModule;
if(param.string === "require") {
dep = new ConstDependency("__webpack_require__", param.range);
} else if(["require", "exports", "module"].indexOf(param.string) >= 0) {
dep = new ConstDependency(param.string, param.range);
} else if(localModule = LocalModulesHelpers.getLocalModule(parser.state, param.string, namedModule)) { // eslint-disable-line no-cond-assign
dep = new LocalModuleDependency(localModule, param.range);
} else {
dep = new AMDRequireItemDependency(param.string, param.range);
}
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
});
parser.plugin("call define:amd:context", (expr, param) => {
const dep = ContextDependencyHelpers.create(AMDRequireContextDependency, param.range, param, expr, options);
if(!dep) return;
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
});
}
}
module.exports = AMDDefineDependencyParserPlugin;