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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RequireResolveDependency = require("./RequireResolveDependency");
const RequireResolveContextDependency = require("./RequireResolveContextDependency");
const RequireResolveHeaderDependency = require("./RequireResolveHeaderDependency");
const ContextDependencyHelpers = require("./ContextDependencyHelpers");
class RequireResolveDependencyParserPlugin {
constructor(options) {
this.options = options;
}
apply(parser) {
const options = this.options;
const process = (expr, weak) => {
if (expr.arguments.length !== 1) return;
const param = parser.evaluateExpression(expr.arguments[0]);
if (param.isConditional()) {
for (const option of param.options) {
const result = processItem(expr, option, weak);
if (result === undefined) {
processContext(expr, option, weak);
}
}
const dep = new RequireResolveHeaderDependency(expr.callee.range);
dep.loc = expr.loc;
parser.state.current.addDependency(dep);
return true;
} else {
const result = processItem(expr, param, weak);
if (result === undefined) {
processContext(expr, param, weak);
}
const dep = new RequireResolveHeaderDependency(expr.callee.range);
dep.loc = expr.loc;
parser.state.current.addDependency(dep);
return true;
}
};
const processItem = (expr, param, weak) => {
if (param.isString()) {
const dep = new RequireResolveDependency(param.string, param.range);
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
dep.weak = weak;
parser.state.current.addDependency(dep);
return true;
}
};
const processContext = (expr, param, weak) => {
const dep = ContextDependencyHelpers.create(
RequireResolveContextDependency,
param.range,
param,
expr,
options,
{
mode: weak ? "weak" : "sync"
},
parser
);
if (!dep) return;
dep.loc = expr.loc;
dep.optional = !!parser.scope.inTry;
parser.state.current.addDependency(dep);
return true;
};
parser.hooks.call
.for("require.resolve")
.tap("RequireResolveDependencyParserPlugin", expr => {
return process(expr, false);
});
parser.hooks.call
.for("require.resolveWeak")
.tap("RequireResolveDependencyParserPlugin", expr => {
return process(expr, true);
});
}
}
module.exports = RequireResolveDependencyParserPlugin;
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