refactor(tsc-wrapped): cleanup (#16178)

PR Close #16178

tools/@angular/tsc-wrapped/src/bundler.ts

@@ -9,14 +9,11 @@ import * as path from 'path';
 import * as ts from 'typescript';
 
 import {MetadataCollector} from './collector';
-import {ClassMetadata, ConstructorMetadata, FunctionMetadata, MemberMetadata, MetadataArray, MetadataEntry, MetadataError, MetadataImportedSymbolReferenceExpression, MetadataMap, MetadataObject, MetadataSymbolicBinaryExpression, MetadataSymbolicCallExpression, MetadataSymbolicExpression, MetadataSymbolicIfExpression, MetadataSymbolicIndexExpression, MetadataSymbolicPrefixExpression, MetadataSymbolicReferenceExpression, MetadataSymbolicSelectExpression, MetadataSymbolicSpreadExpression, MetadataValue, MethodMetadata, ModuleMetadata, VERSION, isClassMetadata, isConstructorMetadata, isFunctionMetadata, isInterfaceMetadata, isMetadataError, isMetadataGlobalReferenceExpression, isMetadataImportedSymbolReferenceExpression, isMetadataModuleReferenceExpression, isMetadataSymbolicExpression, isMetadataSymbolicReferenceExpression, isMethodMetadata} from './schema';
+import {ClassMetadata, ConstructorMetadata, FunctionMetadata, MemberMetadata, MetadataEntry, MetadataError, MetadataImportedSymbolReferenceExpression, MetadataMap, MetadataObject, MetadataSymbolicExpression, MetadataSymbolicReferenceExpression, MetadataValue, MethodMetadata, ModuleMetadata, VERSION, isClassMetadata, isConstructorMetadata, isFunctionMetadata, isInterfaceMetadata, isMetadataError, isMetadataGlobalReferenceExpression, isMetadataImportedSymbolReferenceExpression, isMetadataModuleReferenceExpression, isMetadataSymbolicExpression, isMethodMetadata} from './schema';
 
 
 // The character set used to produce private names.
-const PRIVATE_NAME_CHARS = [
-  'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
-  'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
-];
+const PRIVATE_NAME_CHARS = 'abcdefghijklmnopqrstuvwxyz';
 
 interface Symbol {
   module: string;
@@ -199,7 +196,6 @@ export class MetadataBundler {
   private canonicalizeSymbols(exportedSymbols: Symbol[]) {
     const symbols = Array.from(this.symbolMap.values());
     this.exported = new Set(exportedSymbols);
-    ;
     symbols.forEach(this.canonicalizeSymbol, this);
   }
 
@@ -433,18 +429,15 @@ export class MetadataBundler {
 
     if (isMetadataImportedSymbolReferenceExpression(value)) {
       // References to imported symbols are separated into two, references to bundled modules and
-      // references to modules
-      // external to the bundle. If the module reference is relative it is assuemd to be in the
-      // bundle. If it is Global
-      // it is assumed to be outside the bundle. References to symbols outside the bundle are left
-      // unmodified. Refernces
-      // to symbol inside the bundle need to be converted to a bundle import reference reachable
-      // from the bundle index.
+      // references to modules external to the bundle. If the module reference is relative it is
+      // assumed to be in the bundle. If it is Global it is assumed to be outside the bundle.
+      // References to symbols outside the bundle are left unmodified. References to symbol inside
+      // the bundle need to be converted to a bundle import reference reachable from the bundle
+      // index.
 
       if (value.module.startsWith('.')) {
         // Reference is to a symbol defined inside the module. Convert the reference to a reference
-        // to the canonical
-        // symbol.
+        // to the canonical symbol.
         const referencedModule = resolveModule(value.module, moduleName);
         const referencedName = value.name;
         return createReference(this.canonicalSymbolOf(referencedModule, referencedName));
@@ -453,7 +446,7 @@ export class MetadataBundler {
       // Value is a reference to a symbol defined outside the module.
       if (value.arguments) {
         // If a reference has arguments the arguments need to be converted.
-        const result: MetadataImportedSymbolReferenceExpression = {
+        return {
           __symbolic: 'reference',
           name: value.name,
           module: value.module,
@@ -538,10 +531,6 @@ function isPrimitive(o: any): o is boolean|string|number {
   return o === null || (typeof o !== 'function' && typeof o !== 'object');
 }
 
-function isMetadataArray(o: MetadataValue): o is MetadataArray {
-  return Array.isArray(o);
-}
-
 function getRootExport(symbol: Symbol): Symbol {
   return symbol.reexportedAs ? getRootExport(symbol.reexportedAs) : symbol;
 }

tools/@angular/tsc-wrapped/src/collector.ts

@@ -94,7 +94,6 @@ export class MetadataCollector {
                 value: evaluator.evaluateNode(returnStatement.expression)
               };
               if (functionDeclaration.parameters.some(p => p.initializer != null)) {
-                const defaults: MetadataValue[] = [];
                 func.defaults = functionDeclaration.parameters.map(
                     p => p.initializer && evaluator.evaluateNode(p.initializer));
               }
@@ -358,7 +357,6 @@ export class MetadataCollector {
         case ts.SyntaxKind.ClassDeclaration:
           const classDeclaration = <ts.ClassDeclaration>node;
           if (classDeclaration.name) {
-            const className = classDeclaration.name.text;
             if (isExported(classDeclaration)) {
               if (!metadata) metadata = {};
               metadata[exportedName(classDeclaration)] = classMetadataOf(classDeclaration);

tools/@angular/tsc-wrapped/src/compiler_host.ts

@@ -8,7 +8,6 @@
 
 import {writeFileSync} from 'fs';
 import {normalize} from 'path';
-import * as tsickle from 'tsickle';
 import * as ts from 'typescript';
 
 import NgOptions from './options';
@@ -98,8 +97,7 @@ export class MetadataWriterHost extends DelegatingHost {
         }
         if (isDts) {
           // TODO: remove this early return after https://github.com/Microsoft/TypeScript/pull/8412
-          // is
-          // released
+          // is released
           return;
         }
 

tools/@angular/tsc-wrapped/src/evaluator.ts

@@ -9,7 +9,7 @@
 import * as ts from 'typescript';
 
 import {CollectorOptions} from './collector';
-import {MetadataEntry, MetadataError, MetadataGlobalReferenceExpression, MetadataImportedSymbolReferenceExpression, MetadataSymbolicCallExpression, MetadataSymbolicReferenceExpression, MetadataValue, isMetadataError, isMetadataGlobalReferenceExpression, isMetadataImportedSymbolReferenceExpression, isMetadataModuleReferenceExpression, isMetadataSymbolicReferenceExpression, isMetadataSymbolicSpreadExpression} from './schema';
+import {MetadataEntry, MetadataError, MetadataImportedSymbolReferenceExpression, MetadataSymbolicCallExpression, MetadataValue, isMetadataError, isMetadataModuleReferenceExpression, isMetadataSymbolicReferenceExpression, isMetadataSymbolicSpreadExpression} from './schema';
 import {Symbols} from './symbols';
 
 // In TypeScript 2.1 the spread element kind was renamed.
@@ -86,7 +86,7 @@ export function errorSymbol(
       const {line, character} =
           ts.getLineAndCharacterOfPosition(sourceFile, node.getStart(sourceFile));
       result = {__symbolic: 'error', message, line, character};
-    };
+    }
   }
   if (!result) {
     result = {__symbolic: 'error', message};

tools/@angular/tsc-wrapped/src/main.ts

@@ -55,7 +55,7 @@ export function main(
 
     let host = ts.createCompilerHost(parsed.options, true);
 
-    // If the comilation is a flat module index then produce the flat module index
+    // If the compilation is a flat module index then produce the flat module index
     // metadata and the synthetic flat module index.
     if (ngOptions.flatModuleOutFile && !ngOptions.skipMetadataEmit) {
       const files = parsed.fileNames.filter(f => !DTS.test(f));
@@ -170,7 +170,7 @@ export function main(
 // CLI entry point
 if (require.main === module) {
   const args = process.argv.slice(2);
-  let {options, fileNames, errors} = (ts as any).parseCommandLine(args);
+  let {options, errors} = (ts as any).parseCommandLine(args);
   check(errors);
   const project = options.project || '.';
   // TODO(alexeagle): command line should be TSC-compatible, remove "CliOptions" here

tools/@angular/tsc-wrapped/src/vinyl_file.ts

@@ -12,8 +12,7 @@ export interface VinylFile extends Object {
   // Content of the virtual file
   contents: Buffer;
 }
-;
 
 export function isVinylFile(obj: any): obj is VinylFile {
   return (typeof obj === 'object') && ('path' in obj) && ('contents' in obj);
-};
+}