You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
3.4 KiB
116 lines
3.4 KiB
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
"use strict";
|
|
|
|
const RequireEnsureDependenciesBlock = require("./RequireEnsureDependenciesBlock");
|
|
const RequireEnsureItemDependency = require("./RequireEnsureItemDependency");
|
|
const getFunctionExpression = require("./getFunctionExpression");
|
|
|
|
module.exports = class RequireEnsureDependenciesBlockParserPlugin {
|
|
apply(parser) {
|
|
parser.hooks.call
|
|
.for("require.ensure")
|
|
.tap("RequireEnsureDependenciesBlockParserPlugin", expr => {
|
|
let chunkName = null;
|
|
let chunkNameRange = null;
|
|
let errorExpressionArg = null;
|
|
let errorExpression = null;
|
|
switch (expr.arguments.length) {
|
|
case 4: {
|
|
const chunkNameExpr = parser.evaluateExpression(expr.arguments[3]);
|
|
if (!chunkNameExpr.isString()) return;
|
|
chunkNameRange = chunkNameExpr.range;
|
|
chunkName = chunkNameExpr.string;
|
|
}
|
|
// falls through
|
|
case 3: {
|
|
errorExpressionArg = expr.arguments[2];
|
|
errorExpression = getFunctionExpression(errorExpressionArg);
|
|
|
|
if (!errorExpression && !chunkName) {
|
|
const chunkNameExpr = parser.evaluateExpression(
|
|
expr.arguments[2]
|
|
);
|
|
if (!chunkNameExpr.isString()) return;
|
|
chunkNameRange = chunkNameExpr.range;
|
|
chunkName = chunkNameExpr.string;
|
|
}
|
|
}
|
|
// falls through
|
|
case 2: {
|
|
const dependenciesExpr = parser.evaluateExpression(
|
|
expr.arguments[0]
|
|
);
|
|
const dependenciesItems = dependenciesExpr.isArray()
|
|
? dependenciesExpr.items
|
|
: [dependenciesExpr];
|
|
const successExpressionArg = expr.arguments[1];
|
|
const successExpression = getFunctionExpression(
|
|
successExpressionArg
|
|
);
|
|
|
|
if (successExpression) {
|
|
parser.walkExpressions(successExpression.expressions);
|
|
}
|
|
if (errorExpression) {
|
|
parser.walkExpressions(errorExpression.expressions);
|
|
}
|
|
|
|
const dep = new RequireEnsureDependenciesBlock(
|
|
expr,
|
|
successExpression ? successExpression.fn : successExpressionArg,
|
|
errorExpression ? errorExpression.fn : errorExpressionArg,
|
|
chunkName,
|
|
chunkNameRange,
|
|
parser.state.module,
|
|
expr.loc
|
|
);
|
|
const old = parser.state.current;
|
|
parser.state.current = dep;
|
|
try {
|
|
let failed = false;
|
|
parser.inScope([], () => {
|
|
for (const ee of dependenciesItems) {
|
|
if (ee.isString()) {
|
|
const edep = new RequireEnsureItemDependency(ee.string);
|
|
edep.loc = dep.loc;
|
|
dep.addDependency(edep);
|
|
} else {
|
|
failed = true;
|
|
}
|
|
}
|
|
});
|
|
if (failed) {
|
|
return;
|
|
}
|
|
if (successExpression) {
|
|
if (successExpression.fn.body.type === "BlockStatement") {
|
|
parser.walkStatement(successExpression.fn.body);
|
|
} else {
|
|
parser.walkExpression(successExpression.fn.body);
|
|
}
|
|
}
|
|
old.addBlock(dep);
|
|
} finally {
|
|
parser.state.current = old;
|
|
}
|
|
if (!successExpression) {
|
|
parser.walkExpression(successExpressionArg);
|
|
}
|
|
if (errorExpression) {
|
|
if (errorExpression.fn.body.type === "BlockStatement") {
|
|
parser.walkStatement(errorExpression.fn.body);
|
|
} else {
|
|
parser.walkExpression(errorExpression.fn.body);
|
|
}
|
|
} else if (errorExpressionArg) {
|
|
parser.walkExpression(errorExpressionArg);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
});
|
|
}
|
|
};
|