Make AMD parser modules extensible

This commit is contained in:
chuckd 2018-03-05 07:51:12 -05:00
parent 6970103b79
commit 1b37115e4b
2 changed files with 430 additions and 408 deletions

View File

@ -40,272 +40,275 @@ class AMDDefineDependencyParserPlugin {
this.options = options;
}
newDefineDependency(
range,
arrayRange,
functionRange,
objectRange,
namedModule
) {
return new AMDDefineDependency(
range,
arrayRange,
functionRange,
objectRange,
namedModule
apply(parser) {
this.parser = parser;
parser.hooks.call.for("define").tap(
"AMDDefineDependencyParserPlugin",
this.processCallDefine.bind(
Object.create(this, {
parser: { value: parser }
})
)
);
}
apply(parser) {
const options = this.options;
const processArray = (expr, param, identifiers, namedModule) => {
if (param.isArray()) {
param.items.forEach((param, idx) => {
if (
param.isString() &&
["require", "module", "exports"].includes(param.string)
)
identifiers[idx] = param.string;
const result = processItem(expr, param, namedModule);
if (result === undefined) {
processContext(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"].includes(request)) {
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;
}
};
const processItem = (expr, param, namedModule) => {
if (param.isConditional()) {
param.options.forEach(param => {
const result = processItem(expr, param);
if (result === undefined) {
processContext(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"].includes(param.string)) {
dep = new ConstDependency(param.string, param.range);
processArray(expr, param, identifiers, namedModule) {
const parser = this.parser;
if (param.isArray()) {
param.items.forEach((param, idx) => {
if (
param.isString() &&
["require", "module", "exports"].includes(param.string)
)
identifiers[idx] = param.string;
const result = this.processItem(expr, param, namedModule);
if (result === undefined) {
this.processContext(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"].includes(request)) {
identifiers[idx] = request;
dep = request;
} else if (
(localModule = LocalModulesHelpers.getLocalModule(
parser.state,
param.string,
namedModule
request
))
) {
// eslint-disable-line no-cond-assign
dep = new LocalModuleDependency(localModule, param.range);
dep = new LocalModuleDependency(localModule);
dep.loc = expr.loc;
parser.state.current.addDependency(dep);
} else {
dep = new AMDRequireItemDependency(param.string, param.range);
dep = this.newRequireItemDependency(request);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
}
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
};
const processContext = (expr, param) => {
const dep = ContextDependencyHelpers.create(
AMDRequireContextDependency,
param.range,
param,
expr,
options
);
if (!dep) return;
deps.push(dep);
});
const dep = this.newRequireArrayDependency(deps, param.range);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
};
parser.hooks.call
.for("define")
.tap("AMDDefineDependencyParserPlugin", 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;
}
}
processItem(expr, param, namedModule) {
const parser = this.parser;
if (param.isConditional()) {
param.options.forEach(param => {
const result = this.processItem(expr, param);
if (result === undefined) {
this.processContext(expr, param);
}
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;
});
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"].includes(param.string)) {
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 = this.newRequireItemDependency(param.string, param.range);
}
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
}
processContext(expr, param) {
const dep = ContextDependencyHelpers.create(
AMDRequireContextDependency,
param.range,
param,
expr,
this.options
);
if (!dep) return;
dep.loc = expr.loc;
dep.optional = !!this.parser.scope.inTry;
this.parser.state.current.addDependency(dep);
return true;
}
processCallDefine(expr) {
const parser = this.parser;
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];
}
}
let fnRenames = parser.scope.renames.createChild();
let identifiers;
if (array) {
identifiers = {};
const param = parser.evaluateExpression(array);
const result = processArray(expr, param, identifiers, namedModule);
if (!result) return;
if (fnParams)
fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
if (identifiers[idx]) {
fnRenames.set(param.name, identifiers[idx]);
return false;
}
return true;
});
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 {
identifiers = ["require", "exports", "module"];
if (fnParams)
fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
if (identifiers[idx]) {
fnRenames.set(param.name, identifiers[idx]);
return false;
}
return true;
});
// define("...", [...], expr)
// unclear if function or object
obj = fn = expr.arguments[2];
}
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"].includes(i.name)
),
() => {
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;
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 = parser.scope.renames.createChild();
let identifiers;
if (array) {
identifiers = {};
const param = parser.evaluateExpression(array);
const result = this.processArray(expr, param, identifiers, namedModule);
if (!result) return;
if (fnParams)
fnParams = fnParams.slice(fnParamsOffset).filter((param, idx) => {
if (identifiers[idx]) {
fnRenames.set(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.set(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"].includes(i.name)
),
() => {
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;
}
newDefineDependency(...args) {
return new AMDDefineDependency(...args);
}
newRequireArrayDependency(...args) {
return new AMDRequireArrayDependency(...args);
}
newRequireItemDependency(...args) {
return new AMDRequireItemDependency(...args);
}
}
module.exports = AMDDefineDependencyParserPlugin;

View File

@ -46,8 +46,117 @@ class AMDRequireDependenciesBlockParserPlugin {
}
apply(parser) {
const options = this.options;
this.parser = parser;
parser.hooks.call.for("require").tap(
"AMDRequireDependenciesBlockParserPlugin",
this.processCallRequire.bind(
Object.create(this, {
parser: { value: parser }
})
)
);
}
processArray(expr, param) {
const parser = this.parser;
if (param.isArray()) {
for (const p of param.items) {
const result = this.processItem(expr, p);
if (result === undefined) {
this.processContext(expr, p);
}
}
return true;
} else if (param.isConstArray()) {
const deps = [];
for (const request of param.array) {
let dep, localModule;
if (request === "require") {
dep = "__webpack_require__";
} else if (["exports", "module"].includes(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 = this.newRequireItemDependency(request);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
}
deps.push(dep);
}
const dep = this.newRequireArrayDependency(deps, param.range);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
}
processItem(expr, param) {
const parser = this.parser;
if (param.isConditional()) {
for (const p of param.options) {
const result = this.processItem(expr, p);
if (result === undefined) {
this.processContext(expr, p);
}
}
return true;
} else if (param.isString()) {
let dep, localModule;
if (param.string === "require") {
dep = new ConstDependency("__webpack_require__", param.string);
} else if (param.string === "module") {
dep = new ConstDependency(
parser.state.module.buildInfo.moduleArgument,
param.range
);
} else if (param.string === "exports") {
dep = new ConstDependency(
parser.state.module.buildInfo.exportsArgument,
param.range
);
} else if (
(localModule = LocalModulesHelpers.getLocalModule(
parser.state,
param.string
))
) {
// eslint-disable-line no-cond-assign
dep = new LocalModuleDependency(localModule, param.range);
} else {
dep = this.newRequireItemDependency(param.string, param.range);
}
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
}
}
processContext(expr, param) {
const dep = ContextDependencyHelpers.create(
AMDRequireContextDependency,
param.range,
param,
expr,
this.options
);
if (!dep) return;
dep.loc = expr.loc;
dep.optional = !!this.parser.scope.inTry;
this.parser.state.current.addDependency(dep);
return true;
}
processCallRequire(expr) {
const processArrayForRequestString = param => {
if (param.isArray()) {
const result = param.items.map(item =>
@ -70,172 +179,82 @@ class AMDRequireDependenciesBlockParserPlugin {
}
};
const processArray = (expr, param) => {
if (param.isArray()) {
for (const p of param.items) {
const result = processItem(expr, p);
if (result === undefined) {
processContext(expr, p);
}
}
return true;
} else if (param.isConstArray()) {
const deps = [];
for (const request of param.array) {
let dep, localModule;
if (request === "require") {
dep = "__webpack_require__";
} else if (["exports", "module"].includes(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;
}
};
const processItem = (expr, param) => {
if (param.isConditional()) {
for (const p of param.options) {
const result = processItem(expr, p);
if (result === undefined) {
processContext(expr, p);
}
}
return true;
} else if (param.isString()) {
let dep, localModule;
if (param.string === "require") {
dep = new ConstDependency("__webpack_require__", param.string);
} else if (param.string === "module") {
dep = new ConstDependency(
parser.state.module.buildInfo.moduleArgument,
param.range
);
} else if (param.string === "exports") {
dep = new ConstDependency(
parser.state.module.buildInfo.exportsArgument,
param.range
);
} else if (
(localModule = LocalModulesHelpers.getLocalModule(
parser.state,
param.string
))
) {
// 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;
}
};
const processContext = (expr, param) => {
const dep = ContextDependencyHelpers.create(
AMDRequireContextDependency,
param.range,
param,
let param;
let dep;
let result;
const parser = this.parser;
const old = parser.state.current;
if (expr.arguments.length >= 1) {
param = parser.evaluateExpression(expr.arguments[0]);
dep = this.newRequireDependenciesBlock(
expr,
options
param.range,
expr.arguments.length > 1 ? expr.arguments[1].range : null,
expr.arguments.length > 2 ? expr.arguments[2].range : null,
parser.state.module,
expr.loc,
processArrayForRequestString(param)
);
if (!dep) return;
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
};
parser.state.current = dep;
}
parser.hooks.call
.for("require")
.tap("AMDRequireDependenciesBlockParserPlugin", expr => {
let param;
let dep;
let result;
const old = parser.state.current;
if (expr.arguments.length >= 1) {
param = parser.evaluateExpression(expr.arguments[0]);
dep = new AMDRequireDependenciesBlock(
expr,
param.range,
expr.arguments.length > 1 ? expr.arguments[1].range : null,
expr.arguments.length > 2 ? expr.arguments[2].range : null,
parser.state.module,
expr.loc,
processArrayForRequestString(param)
);
parser.state.current = dep;
}
if (expr.arguments.length === 1) {
parser.inScope([], () => {
result = processArray(expr, param);
});
parser.state.current = old;
if (!result) return;
parser.state.current.addBlock(dep);
return true;
}
if (expr.arguments.length === 2 || expr.arguments.length === 3) {
try {
parser.inScope([], () => {
result = processArray(expr, param);
});
if (!result) {
dep = new UnsupportedDependency("unsupported", expr.range);
old.addDependency(dep);
if (parser.state.module)
parser.state.module.errors.push(
new UnsupportedFeatureWarning(
parser.state.module,
"Cannot statically analyse 'require(..., ...)' in line " +
expr.loc.start.line
)
);
dep = null;
return true;
}
dep.functionBindThis = this.processFunctionArgument(
parser,
expr.arguments[1]
);
if (expr.arguments.length === 3) {
dep.errorCallbackBindThis = this.processFunctionArgument(
parser,
expr.arguments[2]
);
}
} finally {
parser.state.current = old;
if (dep) parser.state.current.addBlock(dep);
}
return true;
}
if (expr.arguments.length === 1) {
parser.inScope([], () => {
result = this.processArray(expr, param);
});
parser.state.current = old;
if (!result) return;
parser.state.current.addBlock(dep);
return true;
}
if (expr.arguments.length === 2 || expr.arguments.length === 3) {
try {
parser.inScope([], () => {
result = this.processArray(expr, param);
});
if (!result) {
dep = new UnsupportedDependency("unsupported", expr.range);
old.addDependency(dep);
if (parser.state.module)
parser.state.module.errors.push(
new UnsupportedFeatureWarning(
parser.state.module,
"Cannot statically analyse 'require(..., ...)' in line " +
expr.loc.start.line
)
);
dep = null;
return true;
}
dep.functionBindThis = this.processFunctionArgument(
parser,
expr.arguments[1]
);
if (expr.arguments.length === 3) {
dep.errorCallbackBindThis = this.processFunctionArgument(
parser,
expr.arguments[2]
);
}
} finally {
parser.state.current = old;
if (dep) parser.state.current.addBlock(dep);
}
return true;
}
}
newRequireDependenciesBlock(...args) {
return new AMDRequireDependenciesBlock(...args);
}
newRequireItemDependency(...args) {
return new AMDRequireItemDependency(...args);
}
newRequireArrayDependency(...args) {
return new AMDRequireArrayDependency(...args);
}
}
module.exports = AMDRequireDependenciesBlockParserPlugin;