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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/webpack/lib/dependencies/RequireEnsureDependenciesBlockParserPlugin.js
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Diffstat (limited to 'node_modules/webpack/lib/dependencies/RequireEnsureDependenciesBlockParserPlugin.js')
-rw-r--r--node_modules/webpack/lib/dependencies/RequireEnsureDependenciesBlockParserPlugin.js116
1 files changed, 116 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/RequireEnsureDependenciesBlockParserPlugin.js b/node_modules/webpack/lib/dependencies/RequireEnsureDependenciesBlockParserPlugin.js
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+++ b/node_modules/webpack/lib/dependencies/RequireEnsureDependenciesBlockParserPlugin.js
@@ -0,0 +1,116 @@
+/*
+ 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;
+ }
+ }
+ });
+ }
+};