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/home/yanggyein/yanggyein/yang_ai/node_modules/ast-types/def/esprima.js

module.exports = function (fork) {
    fork.use(require("./es7"));

var types = fork.use(require("../lib/types"));
    var defaults = fork.use(require("../lib/shared")).defaults;
    var def = types.Type.def;
    var or = types.Type.or;

def("VariableDeclaration")
      .field("declarations", [or(
        def("VariableDeclarator"),
        def("Identifier") // Esprima deviation.
      )]);

def("Property")
      .field("value", or(
        def("Expression"),
        def("Pattern") // Esprima deviation.
      ));

def("ArrayPattern")
      .field("elements", [or(
        def("Pattern"),
        def("SpreadElement"),
        null
      )]);

def("ObjectPattern")
      .field("properties", [or(
        def("Property"),
        def("PropertyPattern"),
        def("SpreadPropertyPattern"),
        def("SpreadProperty") // Used by Esprima.
      )]);

// Like ModuleSpecifier, except type:"ExportSpecifier" and buildable.
// export {<id [as name]>} [from ...];
    def("ExportSpecifier")
      .bases("ModuleSpecifier")
      .build("id", "name");

// export <*> from ...;
    def("ExportBatchSpecifier")
      .bases("Specifier")
      .build();

// Like ModuleSpecifier, except type:"ImportSpecifier" and buildable.
// import {<id [as name]>} from ...;
    def("ImportSpecifier")
      .bases("ModuleSpecifier")
      .build("id", "name");

// import <* as id> from ...;
    def("ImportNamespaceSpecifier")
      .bases("ModuleSpecifier")
      .build("id");

// import <id> from ...;
    def("ImportDefaultSpecifier")
      .bases("ModuleSpecifier")
      .build("id");

def("ExportDeclaration")
      .bases("Declaration")
      .build("default", "declaration", "specifiers", "source")
      .field("default", Boolean)
      .field("declaration", or(
        def("Declaration"),
        def("Expression"), // Implies default.
        null
      ))
      .field("specifiers", [or(
        def("ExportSpecifier"),
        def("ExportBatchSpecifier")
      )], defaults.emptyArray)
      .field("source", or(
        def("Literal"),
        null
      ), defaults["null"]);

def("ImportDeclaration")
      .bases("Declaration")
      .build("specifiers", "source", "importKind")
      .field("specifiers", [or(
        def("ImportSpecifier"),
        def("ImportNamespaceSpecifier"),
        def("ImportDefaultSpecifier")
      )], defaults.emptyArray)
      .field("source", def("Literal"))
      .field("importKind", or(
        "value",
        "type"
      ), function() {
        return "value";
      });

def("Block")
      .bases("Comment")
      .build("value", /*optional:*/ "leading", "trailing");

def("Line")
      .bases("Comment")
      .build("value", /*optional:*/ "leading", "trailing");
};