TypeScript types.identifier函数代码示例

export function createVariableCallAST(
  name: string,
  method: string,
  args: (Expression | SpreadElement)[],
) {
  return callExpression(
    memberExpression(createVariableAST(name), identifier(method)),
    args,
  );
}

      originalDeclarations.forEach(function(decl) {
        newDeclarations.push(decl);
        if (!decl.init) {
          decl.init = addLoc(ignoredIdentifier("undefined"), decl.loc);
        }

        if (decl.id.type === "ArrayPattern") {
          // declaration are inserted into pattern already
        } else if (decl.id.type === "ObjectPattern") {
          // declarations are inserted into object pattern already
        } else {
          newDeclarations.push(
            t.variableDeclarator(
              addLoc(getTrackingIdentifier(decl.id.name), decl.id.loc),
              skipPath(
                t.callExpression(
                  t.identifier(FunctionNames.getLastOperationTrackingResult),
                  []
                )
              )
            )
          );
        }
      });

import template from "@babel/template";
import generate from "@babel/generator";
import * as t from "@babel/types";

const buildRequire = template.statement(`
  var IMPORT_NAME = require(SOURCE);
`);

const ast1 = buildRequire({
    IMPORT_NAME: t.identifier("myModule"),
    SOURCE: t.stringLiteral("my-module")
});

console.log(generate(ast1).code);

const ast2 = template.ast(`
  var myModule = require("my-module");
`);

const fn = template.statement`
  var IMPORT_NAME = require('${"my-module"}');
`;

const ast3 = fn({
    IMPORT_NAME: t.identifier("myModule")
});

console.log(generate(ast3).code);

declare const mod: string;

 const m = method.split('.').map(i => identifier(i));

export function createVariableAST(name: string) {
  return callExpression(
    memberExpression(identifier('Variable'), identifier('find')),
    [identifier('gameModel'), stringLiteral(name)],
  ) as VariableAST;
}

 path.node.params.forEach((param, i) => {
   if (param.type === "ObjectPattern") {
     // do nothing for now, logic is in objectpattern visitor
     // for (var n = 0; n < param.properties.length; n++) {
     //   const prop = param.properties[n];
     //   declarators.push(
     //     t.variableDeclarator(
     //       addLoc(
     //         getTrackingIdentifier(
     //           prop.value ? prop.value.name : prop.key.name
     //         ),
     //         prop.loc
     //       ),
     //       t.nullLiteral()
     //     )
     //   );
     // }
   } else if (param.type === "ArrayPattern") {
     param.elements.forEach(elem => {
       let varName;
       if (elem.type === "Identifier") {
         varName = elem.name;
       } else if (elem.type === "AssignmentPattern") {
         varName = elem.left.name;
       } else if (elem.type === "RestParameter") {
         varName = elem.argument.name;
       } else if (elem.type === "ObjectPattern") {
         // will be processed in ObjectPattern visitor
       } else {
         throw Error("aaa unknown array pattern elem type " + elem.type);
       }
       declarators.push(
         t.variableDeclarator(
           addLoc(getTrackingIdentifier(varName), param.loc),
           ignoredCallExpression(FunctionNames.getEmptyTrackingInfo, [
             ignoredStringLiteral("arrayPatternInFunction"),
             getLocObjectASTNode(elem.loc)
           ])
         )
       );
     });
   } else if (param.type === "AssignmentPattern") {
     let varName = param.left.name;
     declarators.push(
       t.variableDeclarator(
         addLoc(getTrackingIdentifier(varName), param.loc),
         ignoredCallExpression(FunctionNames.getEmptyTrackingInfo, [
           ignoredStringLiteral("arrayPatternInFunction"),
           getLocObjectASTNode(param.loc)
         ])
       )
     );
   } else if (param.type === "RestElement") {
     let varName = param.argument.name;
     declarators.push(
       t.variableDeclarator(
         addLoc(getTrackingIdentifier(varName), param.loc),
         ignoredCallExpression(FunctionNames.getEmptyTrackingInfo, [
           ignoredStringLiteral("restElement"),
           getLocObjectASTNode(param.loc)
         ])
       )
     );
   } else {
     declarators.push(
       t.variableDeclarator(
         addLoc(getTrackingIdentifier(param.name), param.loc),
         t.callExpression(
           t.identifier(FunctionNames.getFunctionArgTrackingInfo),
           [t.numericLiteral(i)]
         )
       )
     );
   }
 });

function plugin(babel) {
  const { types: t } = babel;

  function handleFunction(path) {
    const declarators: any[] = [];
    path.node.params.forEach((param, i) => {
      if (param.type === "ObjectPattern") {
        // do nothing for now, logic is in objectpattern visitor
        // for (var n = 0; n < param.properties.length; n++) {
        //   const prop = param.properties[n];
        //   declarators.push(
        //     t.variableDeclarator(
        //       addLoc(
        //         getTrackingIdentifier(
        //           prop.value ? prop.value.name : prop.key.name
        //         ),
        //         prop.loc
        //       ),
        //       t.nullLiteral()
        //     )
        //   );
        // }
      } else if (param.type === "ArrayPattern") {
        param.elements.forEach(elem => {
          let varName;
          if (elem.type === "Identifier") {
            varName = elem.name;
          } else if (elem.type === "AssignmentPattern") {
            varName = elem.left.name;
          } else if (elem.type === "RestParameter") {
            varName = elem.argument.name;
          } else if (elem.type === "ObjectPattern") {
            // will be processed in ObjectPattern visitor
          } else {
            throw Error("aaa unknown array pattern elem type " + elem.type);
          }
          declarators.push(
            t.variableDeclarator(
              addLoc(getTrackingIdentifier(varName), param.loc),
              ignoredCallExpression(FunctionNames.getEmptyTrackingInfo, [
                ignoredStringLiteral("arrayPatternInFunction"),
                getLocObjectASTNode(elem.loc)
              ])
            )
          );
        });
      } else if (param.type === "AssignmentPattern") {
        let varName = param.left.name;
        declarators.push(
          t.variableDeclarator(
            addLoc(getTrackingIdentifier(varName), param.loc),
            ignoredCallExpression(FunctionNames.getEmptyTrackingInfo, [
              ignoredStringLiteral("arrayPatternInFunction"),
              getLocObjectASTNode(param.loc)
            ])
          )
        );
      } else if (param.type === "RestElement") {
        let varName = param.argument.name;
        declarators.push(
          t.variableDeclarator(
            addLoc(getTrackingIdentifier(varName), param.loc),
            ignoredCallExpression(FunctionNames.getEmptyTrackingInfo, [
              ignoredStringLiteral("restElement"),
              getLocObjectASTNode(param.loc)
            ])
          )
        );
      } else {
        declarators.push(
          t.variableDeclarator(
            addLoc(getTrackingIdentifier(param.name), param.loc),
            t.callExpression(
              t.identifier(FunctionNames.getFunctionArgTrackingInfo),
              [t.numericLiteral(i)]
            )
          )
        );
      }
    });

    // keep whole list in case the function uses `arguments` object
    // We can't just access the arg tracking values when `arguments` is used (instead of doing it
    // at the top of the function)
    // That's because when we return the argTrackingValues are not reset to the parent function's
    declarators.push(
      t.variableDeclarator(
        ignoredIdentifier("__allArgTV"),
        ignoredCallExpression(FunctionNames.getFunctionArgTrackingInfo, [])
      )
    );

    const d = t.variableDeclaration("var", declarators);
    skipPath(d);
    if (path.node.body.type !== "BlockStatement") {
      // arrow function
      path.node.body = ignoreNode(
        t.blockStatement([ignoreNode(t.returnStatement(path.node.body))])
      );
    }
//.........这里部分代码省略.........