diff options
Diffstat (limited to 'node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js')
-rw-r--r-- | node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js b/node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js new file mode 100644 index 0000000..0d356cf --- /dev/null +++ b/node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js @@ -0,0 +1,86 @@ +/* + 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; |