diff --git a/src/services/compiler/emitter.ts b/src/services/compiler/emitter.ts deleted file mode 100644 index 8de5e64dbba..00000000000 --- a/src/services/compiler/emitter.ts +++ /dev/null @@ -1,3797 +0,0 @@ -// Copyright (c) Microsoft Corporation. All rights reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -/// - -module TypeScript { - export enum EmitContainer { - Prog, - Module, - DynamicModule, - Class, - Constructor, - Function, - Args, - Interface, - } - - export class EmitState { - public column: number; - public line: number; - public container: EmitContainer; - - constructor() { - this.column = 0; - this.line = 0; - this.container = EmitContainer.Prog; - } - } - - export class EmitOptions { - private _diagnostic: Diagnostic = null; - - private _settings: ImmutableCompilationSettings = null; - private _commonDirectoryPath = ""; - private _sharedOutputFile = ""; - private _sourceRootDirectory = ""; - private _sourceMapRootDirectory = ""; - private _outputDirectory = ""; - - public diagnostic(): Diagnostic { return this._diagnostic; } - - public commonDirectoryPath() { return this._commonDirectoryPath; } - public sharedOutputFile() { return this._sharedOutputFile; } - public sourceRootDirectory() { return this._sourceRootDirectory; } - public sourceMapRootDirectory() { return this._sourceMapRootDirectory; } - public outputDirectory() { return this._outputDirectory; } - - public compilationSettings() { return this._settings; } - - constructor(compiler: TypeScriptCompiler, public resolvePath: (path: string) => string) { - var settings = compiler.compilationSettings(); - this._settings = settings; - - // If the document is an external module, then report if the the user has not - // provided the right command line option. - if (settings.moduleGenTarget() === ModuleGenTarget.Unspecified) { - var fileNames = compiler.fileNames(); - for (var i = 0, n = fileNames.length; i < n; i++) { - var document = compiler.getDocument(fileNames[i]); - if (!document.isDeclareFile() && document.syntaxTree().isExternalModule()) { - var errorSpan = externalModuleIndicatorSpan(document.syntaxTree()); - this._diagnostic = new Diagnostic(document.fileName, document.lineMap(), errorSpan.start(), errorSpan.length(), - DiagnosticCode.Cannot_compile_external_modules_unless_the_module_flag_is_provided); - - return; - } - } - } - - if (!settings.mapSourceFiles()) { - // Error to specify --mapRoot or --sourceRoot without mapSourceFiles - if (settings.mapRoot()) { - if (settings.sourceRoot()) { - this._diagnostic = new Diagnostic(null, null, 0, 0, DiagnosticCode.Options_mapRoot_and_sourceRoot_cannot_be_specified_without_specifying_sourcemap_option, null); - return; - } - else { - this._diagnostic = new Diagnostic(null, null, 0, 0, DiagnosticCode.Option_mapRoot_cannot_be_specified_without_specifying_sourcemap_option, null); - return; - } - } - else if (settings.sourceRoot()) { - this._diagnostic = new Diagnostic(null, null, 0, 0, DiagnosticCode.Option_sourceRoot_cannot_be_specified_without_specifying_sourcemap_option, null); - return; - } - } - - this._sourceMapRootDirectory = convertToDirectoryPath(switchToForwardSlashes(settings.mapRoot())); - this._sourceRootDirectory = convertToDirectoryPath(switchToForwardSlashes(settings.sourceRoot())); - - if (settings.outFileOption() || - settings.outDirOption() || - settings.mapRoot() || - settings.sourceRoot()) { - - if (settings.outFileOption()) { - this._sharedOutputFile = switchToForwardSlashes(resolvePath(settings.outFileOption())); - } - - if (settings.outDirOption()) { - this._outputDirectory = convertToDirectoryPath(switchToForwardSlashes(resolvePath(settings.outDirOption()))); - } - - // Parse the directory structure - if (this._outputDirectory || this._sourceMapRootDirectory || this.sourceRootDirectory) { - this.determineCommonDirectoryPath(compiler); - } - } - } - - private determineCommonDirectoryPath(compiler: TypeScriptCompiler): void { - var commonComponents: string[] = []; - var commonComponentsLength = -1; - - var fileNames = compiler.fileNames(); - for (var i = 0, len = fileNames.length; i < len; i++) { - var fileName = fileNames[i]; - var document = compiler.getDocument(fileNames[i]); - var sourceUnit = document.sourceUnit(); - - if (!document.isDeclareFile()) { - var fileComponents = filePathComponents(fileName); - if (commonComponentsLength === -1) { - // First time at finding common path - // So common path = directory of file - commonComponents = fileComponents; - commonComponentsLength = commonComponents.length; - } - else { - var updatedPath = false; - for (var j = 0; j < commonComponentsLength && j < fileComponents.length; j++) { - if (commonComponents[j] !== fileComponents[j]) { - // The new components = 0 ... j -1 - commonComponentsLength = j; - updatedPath = true; - - if (j === 0) { - var isDynamicModuleCompilation = ArrayUtilities.any(fileNames, fileName => { - document = compiler.getDocument(fileName); - return !document.isDeclareFile() && document.syntaxTree().isExternalModule(); - }); - - if (this._outputDirectory || // there is --outDir specified - this._sourceRootDirectory || // there is --sourceRoot specified - (this._sourceMapRootDirectory && // there is --map Specified and there would be multiple js files generated - (!this._sharedOutputFile || isDynamicModuleCompilation))) { - // Its error to not have common path - this._diagnostic = new Diagnostic(null, null, 0, 0, DiagnosticCode.Cannot_find_the_common_subdirectory_path_for_the_input_files, null); - return; - } - - return; - } - - break; - } - } - - // If the fileComponent path completely matched and less than already found update the length - if (!updatedPath && fileComponents.length < commonComponentsLength) { - commonComponentsLength = fileComponents.length; - } - } - } - } - - this._commonDirectoryPath = commonComponents.slice(0, commonComponentsLength).join("/") + "/"; - } - } - - export class Indenter { - static indentStep: number = 4; - static indentStepString: string = " "; - static indentStrings: string[] = []; - public indentAmt: number = 0; - - public increaseIndent() { - this.indentAmt += Indenter.indentStep; - } - - public decreaseIndent() { - this.indentAmt -= Indenter.indentStep; - } - - public getIndent() { - var indentString = Indenter.indentStrings[this.indentAmt]; - if (indentString === undefined) { - indentString = ""; - for (var i = 0; i < this.indentAmt; i = i + Indenter.indentStep) { - indentString += Indenter.indentStepString; - } - Indenter.indentStrings[this.indentAmt] = indentString; - } - return indentString; - } - } - - export function lastParameterIsRest(parameters: ParameterSyntax[]): boolean { - return parameters.length > 0 && (parameters[parameters.length - 1]).dotDotDotToken !== null; - } - - export class Emitter { - public globalThisCapturePrologueEmitted = false; - public extendsPrologueEmitted = false; - public thisClassNode: ClassDeclarationSyntax = null; - public inArrowFunction: boolean = false; - public moduleName = ""; - public emitState = new EmitState(); - public indenter = new Indenter(); - public sourceMapper: SourceMapper = null; - public captureThisStmtString = "var _this = this;"; - private currentVariableDeclaration: VariableDeclarationSyntax; - private declStack: PullDecl[] = []; - private exportAssignment: ExportAssignmentSyntax = null; - private inWithBlock = false; - - public document: Document = null; - - // If we choose to detach comments from an element (for example, the Copyright comments), - // then keep track of that element so that we don't emit all on the comments on it when - // we visit it. - private detachedCommentsElement: ISyntaxElement = null; - - constructor(public emittingFileName: string, - public outfile: TextWriter, - public emitOptions: EmitOptions, - private semanticInfoChain: SemanticInfoChain) { - } - - private pushDecl(decl: PullDecl) { - if (decl) { - this.declStack[this.declStack.length] = decl; - } - } - - private popDecl(decl: PullDecl) { - if (decl) { - this.declStack.length--; - } - } - - private getEnclosingDecl() { - var declStackLen = this.declStack.length; - var enclosingDecl = declStackLen > 0 ? this.declStack[declStackLen - 1] : null; - return enclosingDecl; - } - - public setExportAssignment(exportAssignment: ExportAssignmentSyntax) { - this.exportAssignment = exportAssignment; - } - - public getExportAssignment() { - return this.exportAssignment; - } - - public setDocument(document: Document) { - this.document = document; - } - - public shouldEmitImportDeclaration(importDeclAST: ImportDeclarationSyntax) { - var isExternalModuleReference = importDeclAST.moduleReference.kind() === SyntaxKind.ExternalModuleReference; - var importDecl = this.semanticInfoChain.getDeclForAST(importDeclAST); - var isExported = hasFlag(importDecl.flags, PullElementFlags.Exported); - var isAmdCodeGen = this.emitOptions.compilationSettings().moduleGenTarget() === ModuleGenTarget.Asynchronous; - - // 1) Any internal reference needs to check if the emit can happen - // 2) External module reference with export modifier always needs to be emitted - // 3) commonjs needs the var declaration for the import declaration - if (isExternalModuleReference && !isExported && isAmdCodeGen) { - return false; - } - - var importSymbol = importDecl.getSymbol(this.semanticInfoChain); - if (importSymbol.isUsedAsValue()) { - return true; - } - - if (importDeclAST.moduleReference.kind() !== SyntaxKind.ExternalModuleReference) { - var canBeUsedExternally = isExported || importSymbol.typeUsedExternally() || importSymbol.isUsedInExportedAlias(); - if (!canBeUsedExternally && !this.document.syntaxTree().isExternalModule()) { - // top level import in non-external module are visible across the whole global module - canBeUsedExternally = hasFlag(importDecl.getParentDecl().kind, PullElementKind.Script | PullElementKind.DynamicModule); - } - - if (canBeUsedExternally) { - if (importSymbol.getExportAssignedValueSymbol()) { - return true; - } - - var containerSymbol = importSymbol.getExportAssignedContainerSymbol(); - if (containerSymbol && containerSymbol.getInstanceSymbol()) { - return true; - } - } - } - - return false; - } - - public emitImportDeclaration(importDeclAST: ImportDeclarationSyntax) { - var isExternalModuleReference = importDeclAST.moduleReference.kind() === SyntaxKind.ExternalModuleReference; - var importDecl = this.semanticInfoChain.getDeclForAST(importDeclAST); - var isExported = hasFlag(importDecl.flags, PullElementFlags.Exported); - var isAmdCodeGen = this.emitOptions.compilationSettings().moduleGenTarget() === ModuleGenTarget.Asynchronous; - - this.emitComments(importDeclAST, true); - - var importSymbol = importDecl.getSymbol(this.semanticInfoChain); - - var parentSymbol = importSymbol.getContainer(); - var parentKind = parentSymbol ? parentSymbol.kind : PullElementKind.None; - var associatedParentSymbol = parentSymbol ? parentSymbol.getAssociatedContainerType() : null; - var associatedParentSymbolKind = associatedParentSymbol ? associatedParentSymbol.kind : PullElementKind.None; - - var needsPropertyAssignment = false; - var usePropertyAssignmentInsteadOfVarDecl = false; - var moduleNamePrefix: string; - - if (isExported && - (parentKind === PullElementKind.Container || - parentKind === PullElementKind.DynamicModule || - associatedParentSymbolKind === PullElementKind.Container || - associatedParentSymbolKind === PullElementKind.DynamicModule)) { - if (importSymbol.getExportAssignedTypeSymbol() || importSymbol.getExportAssignedContainerSymbol()) { - // Type or container assignment that is exported - needsPropertyAssignment = true; - } - else { - var valueSymbol = importSymbol.getExportAssignedValueSymbol(); - if (valueSymbol && - (valueSymbol.kind === PullElementKind.Method || valueSymbol.kind === PullElementKind.Function)) { - needsPropertyAssignment = true; - } - else { - usePropertyAssignmentInsteadOfVarDecl = true; - } - } - - // Calculate what name prefix to use - if (this.emitState.container === EmitContainer.DynamicModule) { - moduleNamePrefix = "exports." - } - else { - moduleNamePrefix = this.moduleName + "."; - } - } - - if (isAmdCodeGen && isExternalModuleReference) { - // For amdCode gen of exported external module reference, do not emit var declaration - // Emit the property assignment since it is exported - needsPropertyAssignment = true; - } - else { - this.recordSourceMappingStart(importDeclAST); - if (usePropertyAssignmentInsteadOfVarDecl) { - this.writeToOutput(moduleNamePrefix); - } - else { - this.writeToOutput("var "); - } - this.writeToOutput(importDeclAST.identifier.text() + " = "); - var aliasAST = importDeclAST.moduleReference; - - if (isExternalModuleReference) { - this.writeToOutput("require(" + (aliasAST).stringLiteral.text() + ")"); - } - else { - this.emitJavascript((aliasAST).moduleName, false); - } - - this.recordSourceMappingEnd(importDeclAST); - this.writeToOutput(";"); - - if (needsPropertyAssignment) { - this.writeLineToOutput(""); - this.emitIndent(); - } - } - - if (needsPropertyAssignment) { - this.writeToOutputWithSourceMapRecord(moduleNamePrefix + importDeclAST.identifier.text() + " = " + importDeclAST.identifier.text(), importDeclAST); - this.writeToOutput(";"); - } - this.emitComments(importDeclAST, false); - } - - public createSourceMapper(document: Document, jsFileName: string, jsFile: TextWriter, sourceMapOut: TextWriter, resolvePath: (path: string) => string) { - this.sourceMapper = new SourceMapper(jsFile, sourceMapOut, document, jsFileName, this.emitOptions, resolvePath); - } - - public setSourceMapperNewSourceFile(document: Document) { - this.sourceMapper.setNewSourceFile(document, this.emitOptions); - } - - private updateLineAndColumn(s: string) { - var lineNumbers = TextUtilities.parseLineStarts(s); - if (lineNumbers.length > 1) { - // There are new lines in the string, update the line and column number accordingly - this.emitState.line += lineNumbers.length - 1; - this.emitState.column = s.length - lineNumbers[lineNumbers.length - 1]; - } - else { - // No new lines in the string - this.emitState.column += s.length; - } - } - - public writeToOutputWithSourceMapRecord(s: string, astSpan: ISyntaxElement) { - if (astSpan) { - this.recordSourceMappingStart(astSpan); - } - - this.writeToOutput(s); - - if (astSpan) { - this.recordSourceMappingEnd(astSpan); - } - } - - public writeToOutput(s: string) { - this.outfile.Write(s); - this.updateLineAndColumn(s); - } - - public writeLineToOutput(s: string, force = false) { - // No need to print a newline if we're already at the start of the line. - if (!force && s === "" && this.emitState.column === 0) { - return; - } - - this.outfile.WriteLine(s); - this.updateLineAndColumn(s); - this.emitState.column = 0; - this.emitState.line++; - } - - public writeCaptureThisStatement(ast: ISyntaxElement) { - this.emitIndent(); - this.writeToOutputWithSourceMapRecord(this.captureThisStmtString, ast); - this.writeLineToOutput(""); - } - - public setContainer(c: number): number { - var temp = this.emitState.container; - this.emitState.container = c; - return temp; - } - - private getIndentString() { - return this.indenter.getIndent(); - } - - public emitIndent() { - this.writeToOutput(this.getIndentString()); - } - - public emitComment(comment: Comment, trailing: boolean, first: boolean, noLeadingSpace = false) { - if (this.emitOptions.compilationSettings().removeComments()) { - return; - } - - var text = getTrimmedTextLines(comment); - var emitColumn = this.emitState.column; - - if (emitColumn === 0) { - this.emitIndent(); - } - else if (trailing && first && !noLeadingSpace) { - this.writeToOutput(" "); - } - - if (comment.kind() === SyntaxKind.MultiLineCommentTrivia) { - this.recordSourceMappingCommentStart(comment); - this.writeToOutput(text[0]); - - if (text.length > 1 || comment.endsLine) { - for (var i = 1; i < text.length; i++) { - this.writeLineToOutput(""); - this.emitIndent(); - this.writeToOutput(text[i]); - } - this.recordSourceMappingCommentEnd(comment); - this.writeLineToOutput(""); - // Fall through - } - else { - this.recordSourceMappingCommentEnd(comment); - this.writeToOutput(" "); - return; - } - } - else { - this.recordSourceMappingCommentStart(comment); - this.writeToOutput(text[0]); - this.recordSourceMappingCommentEnd(comment); - this.writeLineToOutput(""); - // Fall through - } - - if (!trailing && emitColumn !== 0) { - // If we were indented before, stay indented after. - this.emitIndent(); - } - } - - private text(): ISimpleText { - return this.document.syntaxTree().text; - } - - public emitComments(ast: ISyntaxElement, pre: boolean, onlyPinnedOrTripleSlashComments: boolean = false) { - // Emitting the comments for the exprssion inside an arrow function is handled specially - // in emitFunctionBodyStatements. We don't want to emit those comments a second time. - if (ast && !isShared(ast) && ast.kind() !== SyntaxKind.Block) { - if (ast.parent.kind() === SyntaxKind.SimpleArrowFunctionExpression || ast.parent.kind() === SyntaxKind.ParenthesizedArrowFunctionExpression) { - return; - } - } - - if (pre) { - var preComments = TypeScript.ASTHelpers.preComments(ast, this.text()); - - if (preComments && ast === this.detachedCommentsElement) { - // We're emitting the comments for the first script element. Skip any - // copyright comments, as we'll already have emitted those. - var detachedComments = this.getDetachedComments(ast); - preComments = preComments.slice(detachedComments.length); - this.detachedCommentsElement = null; - } - - // We're emitting comments on an elided element. Only keep the comment if it is - // a triple slash or pinned comment. - if (preComments && onlyPinnedOrTripleSlashComments) { - preComments = ArrayUtilities.where(preComments, c => this.isPinnedOrTripleSlash(c)); - } - - this.emitCommentsArray(preComments, /*trailing:*/ false); - } - else { - this.emitCommentsArray(ASTHelpers.postComments(ast, this.text()), /*trailing:*/ true); - } - } - - private isPinnedOrTripleSlash(comment: Comment): boolean { - var fullText = comment.fullText(); - if (fullText.match(tripleSlashReferenceRegExp)) { - return true; - } - else { - return fullText.indexOf("/*!") === 0; - } - } - - private emitCommentsArray(comments: Comment[], trailing: boolean, noLeadingSpace = false): void { - if (!this.emitOptions.compilationSettings().removeComments() && comments) { - for (var i = 0, n = comments.length; i < n; i++) { - this.emitComment(comments[i], trailing, /*first:*/ i === 0, noLeadingSpace); - } - } - } - - public emitObjectLiteralExpression(objectLiteral: ObjectLiteralExpressionSyntax) { - this.recordSourceMappingStart(objectLiteral); - - // Try to preserve the newlines between elements that the user had. - this.writeToken(objectLiteral.openBraceToken); - this.emitCommaSeparatedList(objectLiteral, objectLiteral.propertyAssignments, /*buffer:*/ " ", /*preserveNewLines:*/ true); - this.writeToken(objectLiteral.closeBraceToken); - - this.recordSourceMappingEnd(objectLiteral); - } - - public emitArrayLiteralExpression(arrayLiteral: ArrayLiteralExpressionSyntax) { - this.recordSourceMappingStart(arrayLiteral); - - // Try to preserve the newlines between elements that the user had. - this.writeToken(arrayLiteral.openBracketToken); - this.emitCommaSeparatedList(arrayLiteral, arrayLiteral.expressions, /*buffer:*/ "", /*preserveNewLines:*/ true); - this.writeToken(arrayLiteral.closeBracketToken); - - this.recordSourceMappingEnd(arrayLiteral); - } - - public emitObjectCreationExpression(objectCreationExpression: ObjectCreationExpressionSyntax) { - this.recordSourceMappingStart(objectCreationExpression); - this.writeToken(objectCreationExpression.newKeyword); - this.writeToOutput(" "); - var target = objectCreationExpression.expression; - - this.emit(target); - if (objectCreationExpression.argumentList) { - this.recordSourceMappingStart(objectCreationExpression.argumentList); - this.writeToken(objectCreationExpression.argumentList.openParenToken); - this.emitCommaSeparatedList(objectCreationExpression.argumentList, objectCreationExpression.argumentList.arguments, /*buffer:*/ "", /*preserveNewLines:*/ false); - this.writeToken(objectCreationExpression.argumentList.closeParenToken); - this.recordSourceMappingEnd(objectCreationExpression.argumentList); - } - - this.recordSourceMappingEnd(objectCreationExpression); - } - - public getConstantDecl(dotExpr: MemberAccessExpressionSyntax): PullEnumElementDecl { - var pullSymbol = this.semanticInfoChain.getSymbolForAST(dotExpr); - if (pullSymbol && pullSymbol.kind === PullElementKind.EnumMember) { - var pullDecls = pullSymbol.getDeclarations(); - if (pullDecls.length === 1) { - var pullDecl = pullDecls[0]; - if (pullDecl.kind === PullElementKind.EnumMember) { - return pullDecl; - } - } - } - - return null; - } - - public tryEmitConstant(dotExpr: MemberAccessExpressionSyntax) { - var propertyName = dotExpr.name; - var boundDecl = this.getConstantDecl(dotExpr); - if (boundDecl) { - var value = boundDecl.constantValue; - if (value !== null) { - this.recordSourceMappingStart(dotExpr); - this.writeToOutput(value.toString()); - var comment = " /* "; - comment += propertyName.text(); - comment += " */"; - this.writeToOutput(comment); - this.recordSourceMappingEnd(dotExpr); - return true; - } - } - - return false; - } - - public emitInvocationExpression(callNode: InvocationExpressionSyntax) { - this.recordSourceMappingStart(callNode); - var target = callNode.expression; - var args = callNode.argumentList.arguments; - - if (target.kind() === SyntaxKind.MemberAccessExpression && (target).expression.kind() === SyntaxKind.SuperKeyword) { - this.emit(target); - this.writeToOutput(".call"); - this.recordSourceMappingStart(args); - this.writeToken(callNode.argumentList.openParenToken); - this.emitThis(); - if (args && args.length > 0) { - this.writeToOutput(", "); - this.emitCommaSeparatedList(callNode.argumentList, args, /*buffer:*/ "", /*preserveNewLines:*/ false); - } - } - else { - if (callNode.expression.kind() === SyntaxKind.SuperKeyword && this.emitState.container === EmitContainer.Constructor) { - this.writeToOutput("_super.call"); - } - else { - this.emitJavascript(target, false); - } - this.recordSourceMappingStart(args); - this.writeToken(callNode.argumentList.openParenToken); - if (callNode.expression.kind() === SyntaxKind.SuperKeyword && this.emitState.container === EmitContainer.Constructor) { - this.writeToOutput("this"); - if (args && args.length > 0) { - this.writeToOutput(", "); - } - } - this.emitCommaSeparatedList(callNode.argumentList, args, /*buffer:*/ "", /*preserveNewLines:*/ false); - } - - this.writeToken(callNode.argumentList.closeParenToken); - this.recordSourceMappingEnd(args); - this.recordSourceMappingEnd(callNode); - } - - private emitParameterList(list: ParameterListSyntax): void { - this.writeToken(list.openParenToken); - this.emitCommentsArray(ASTHelpers.convertTokenTrailingComments(list.openParenToken, this.text()), /*trailing:*/ true, /*noLeadingSpace:*/ true); - this.emitFunctionParameters(list.parameters, list.parameters); - this.writeToken(list.closeParenToken); - } - - private emitFunctionParameters(ast: ISyntaxElement, parameters: ParameterSyntax[]): void { - var argsLen = 0; - - if (parameters) { - this.emitComments(ast, true); - - var tempContainer = this.setContainer(EmitContainer.Args); - argsLen = parameters.length; - var printLen = argsLen; - if (lastParameterIsRest(parameters)) { - printLen--; - } - for (var i = 0; i < printLen; i++) { - var arg = parameters[i]; - this.emit(arg); - - if (i < (printLen - 1)) { - this.writeToOutput(", "); - if (parameters) { - this.emitCommentsArray(ASTHelpers.convertTokenTrailingComments(parameters.separatorAt(i), this.text()), /*trailing:*/ true, /*noLeadingSpace:*/ true); - } - } - } - this.setContainer(tempContainer); - - this.emitComments(ast, false); - } - } - - private emitFunctionBodyStatements(name: string, funcDecl: ISyntaxElement, parameters: ParameterSyntax[], block: BlockSyntax, bodyExpression: ISyntaxElement): void { - this.writeLineToOutput(" {"); - if (name) { - this.recordSourceMappingNameStart(name); - } - - this.indenter.increaseIndent(); - - if (block) { - // We want any detached statements at the start of hte block to stay at the start. - // This is important for features like VSDoc which place their comments inside a - // block, but can't have them preceded by things like "var _this = this" when we - // emit. - - this.emitDetachedComments(block.statements); - } - - // Parameter list parameters with defaults could capture this - if (this.shouldCaptureThis(funcDecl)) { - this.writeCaptureThisStatement(funcDecl); - } - - if (parameters) { - this.emitDefaultValueAssignments(parameters); - this.emitRestParameterInitializer(parameters); - } - - if (block) { - this.emitList(block.statements); - this.emitCommentsArray(ASTHelpers.convertTokenLeadingComments(block.closeBraceToken, this.text()), /*trailing:*/ false); - } - else { - // Copy any comments before the body of the arrow function to the return statement. - // This is necessary for emitting correctness so we don't emit something like this: - // - // return - // // foo - // this.foo(); - // - // Because of ASI, this gets parsed as "return;" which is *not* what we want for - // proper semantics. - //var preComments = bodyExpression.preComments(); - //var postComments = bodyExpression.postComments(); - - //bodyExpression.setPreComments(null); - //bodyExpression.setPostComments(null); - - this.emitIndent(); - this.emitCommentsArray(ASTHelpers.preComments(bodyExpression, this.text()), /*trailing:*/ false); - this.writeToOutput("return "); - this.emit(bodyExpression); - this.writeLineToOutput(";"); - this.emitCommentsArray(ASTHelpers.preComments(bodyExpression, this.text()), /*trailing:*/ true); - - //bodyExpression.setPreComments(preComments); - //bodyExpression.setPostComments(postComments); - } - - this.indenter.decreaseIndent(); - this.emitIndent(); - - if (block) { - this.writeToken(block.closeBraceToken); - } - else { - this.writeToOutputWithSourceMapRecord("}", bodyExpression); - } - - if (name) { - this.recordSourceMappingNameEnd(); - } - } - - private emitDefaultValueAssignments(parameters: ParameterSyntax[]): void { - var n = parameters.length; - if (lastParameterIsRest(parameters)) { - n--; - } - - for (var i = 0; i < n; i++) { - var arg = parameters[i]; - var id = arg.identifier; - var equalsValueClause = arg.equalsValueClause; - if (equalsValueClause) { - this.emitIndent(); - this.recordSourceMappingStart(arg); - this.writeToOutput("if (typeof " + id.text() + " === \"undefined\") { ");// - this.writeToken(id); - this.emitJavascript(equalsValueClause, false); - this.writeLineToOutput("; }"); - this.recordSourceMappingEnd(arg); - } - } - } - - private emitRestParameterInitializer(parameters: ParameterSyntax[]): void { - if (lastParameterIsRest(parameters)) { - var n = parameters.length; - var lastArg = parameters[n - 1]; - var id = lastArg.identifier; - this.emitIndent(); - this.recordSourceMappingStart(lastArg); - this.writeToOutput("var "); - this.writeToken(id); - this.writeLineToOutput(" = [];"); - this.recordSourceMappingEnd(lastArg); - this.emitIndent(); - this.writeToOutput("for ("); - this.writeToOutputWithSourceMapRecord("var _i = 0;", lastArg); - this.writeToOutput(" "); - this.writeToOutputWithSourceMapRecord("_i < (arguments.length - " + (n - 1) + ")", lastArg); - this.writeToOutput("; "); - this.writeToOutputWithSourceMapRecord("_i++", lastArg); - this.writeLineToOutput(") {"); - this.indenter.increaseIndent(); - this.emitIndent(); - - this.writeToOutputWithSourceMapRecord(id.text() + "[_i] = arguments[_i + " + (n - 1) + "];", lastArg); - this.writeLineToOutput(""); - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeLineToOutput("}"); - } - } - - private getImportDecls(fileName: string): PullDecl[] { - var topLevelDecl = this.semanticInfoChain.topLevelDecl(this.document.fileName); - var result: PullDecl[] = []; - - var dynamicModuleDecl = topLevelDecl.getChildDecls()[0]; // Dynamic module declaration has to be present - var queue: PullDecl[] = dynamicModuleDecl.getChildDecls(); - - for (var i = 0, n = queue.length; i < n; i++) { - var decl = queue[i]; - - if (decl.kind & PullElementKind.TypeAlias) { - var importStatementAST = this.semanticInfoChain.getASTForDecl(decl); - if (importStatementAST.moduleReference.kind() === SyntaxKind.ExternalModuleReference) { // external module - var symbol = decl.getSymbol(this.semanticInfoChain); - var typeSymbol = symbol && symbol.type; - if (typeSymbol && typeSymbol !== this.semanticInfoChain.anyTypeSymbol && !typeSymbol.isError()) { - result.push(decl); - } - } - } - } - - return result; - } - - public getModuleImportAndDependencyList(sourceUnit: SourceUnitSyntax) { - var importList = ""; - var dependencyList = ""; - - var importDecls = this.getImportDecls(this.document.fileName); - - // all dependencies are quoted - if (importDecls.length) { - for (var i = 0; i < importDecls.length; i++) { - var importStatementDecl = importDecls[i]; - var importStatementSymbol = importStatementDecl.getSymbol(this.semanticInfoChain); - var importStatementAST = this.semanticInfoChain.getASTForDecl(importStatementDecl); - - if (importStatementSymbol.isUsedAsValue()) { - if (i <= importDecls.length - 1) { - dependencyList += ", "; - importList += ", "; - } - - importList += importStatementDecl.name; - dependencyList += (importStatementAST.moduleReference).stringLiteral.text(); - } - } - } - - // emit any potential amd dependencies - var amdDependencies = this.document.syntaxTree().amdDependencies(); - for (var i = 0; i < amdDependencies.length; i++) { - dependencyList += ", \"" + amdDependencies[i] + "\""; - } - - return { - importList: importList, - dependencyList: dependencyList - }; - } - - public shouldCaptureThis(ast: ISyntaxElement) { - if (ast.kind() === SyntaxKind.SourceUnit) { - var scriptDecl = this.semanticInfoChain.topLevelDecl(this.document.fileName); - return hasFlag(scriptDecl.flags, PullElementFlags.MustCaptureThis); - } - - var decl = this.semanticInfoChain.getDeclForAST(ast); - if (decl) { - return hasFlag(decl.flags, PullElementFlags.MustCaptureThis); - } - - return false; - } - - public emitEnum(moduleDecl: EnumDeclarationSyntax) { - var pullDecl = this.semanticInfoChain.getDeclForAST(moduleDecl); - this.pushDecl(pullDecl); - - var svModuleName = this.moduleName; - this.moduleName = moduleDecl.identifier.text(); - - var temp = this.setContainer(EmitContainer.Module); - var isExported = hasFlag(pullDecl.flags, PullElementFlags.Exported); - - if (!isExported) { - this.recordSourceMappingStart(moduleDecl); - this.writeToOutput("var "); - this.writeToOutputWithSourceMapRecord(this.moduleName, moduleDecl.identifier); - this.writeLineToOutput(";"); - this.recordSourceMappingEnd(moduleDecl); - this.emitIndent(); - } - - this.writeToOutput("("); - this.recordSourceMappingStart(moduleDecl); - this.writeToOutput("function ("); - this.writeToOutputWithSourceMapRecord(this.moduleName, moduleDecl.identifier); - this.writeLineToOutput(") {"); - - this.recordSourceMappingNameStart(this.moduleName); - - this.indenter.increaseIndent(); - - if (this.shouldCaptureThis(moduleDecl)) { - this.writeCaptureThisStatement(moduleDecl); - } - - this.emitSeparatedList(moduleDecl.enumElements); - this.indenter.decreaseIndent(); - this.emitIndent(); - - var parentIsDynamic = temp === EmitContainer.DynamicModule; - if (temp === EmitContainer.Prog && isExported) { - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.writeToOutput(")(this." + this.moduleName + " || (this." + this.moduleName + " = {}));"); - } - else if (isExported || temp === EmitContainer.Prog) { - var dotMod = svModuleName !== "" ? (parentIsDynamic ? "exports" : svModuleName) + "." : svModuleName; - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.writeToOutput(")(" + dotMod + this.moduleName + " || (" + dotMod + this.moduleName + " = {}));"); - } - else if (!isExported && temp !== EmitContainer.Prog) { - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.writeToOutput(")(" + this.moduleName + " || (" + this.moduleName + " = {}));"); - } - else { - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.writeToOutput(")();"); - } - - this.recordSourceMappingEnd(moduleDecl); - if (temp !== EmitContainer.Prog && isExported) { - this.recordSourceMappingStart(moduleDecl); - if (parentIsDynamic) { - this.writeLineToOutput(""); - this.emitIndent(); - this.writeToOutput("var " + this.moduleName + " = exports." + this.moduleName + ";"); - } - else { - this.writeLineToOutput(""); - this.emitIndent(); - this.writeToOutput("var " + this.moduleName + " = " + svModuleName + "." + this.moduleName + ";"); - } - this.recordSourceMappingEnd(moduleDecl); - } - - this.setContainer(temp); - this.moduleName = svModuleName; - - this.popDecl(pullDecl); - } - - private getModuleDeclToVerifyChildNameCollision(moduleDecl: PullDecl, changeNameIfAnyDeclarationInContext: boolean) { - if (ArrayUtilities.contains(this.declStack, moduleDecl)) { - // Given decl is in the scope, we would need to check for child name collision - return moduleDecl; - } - else if (changeNameIfAnyDeclarationInContext) { - // Check if any other declaration of the given symbol is in scope - // (eg. when emitting expression of type defined from different declaration in reopened module) - var symbol = moduleDecl.getSymbol(this.semanticInfoChain); - if (symbol) { - var otherDecls = symbol.getDeclarations(); - for (var i = 0; i < otherDecls.length; i++) { - // If the other decl is in the scope, use this decl to determine which name to display - if (ArrayUtilities.contains(this.declStack, otherDecls[i])) { - return otherDecls[i]; - } - } - } - } - - return null; - } - - private hasChildNameCollision(moduleName: string, parentDecl: PullDecl) { - var childDecls = parentDecl.getChildDecls(); - return ArrayUtilities.any(childDecls, (childDecl: PullDecl) => { - var childAST = this.semanticInfoChain.getASTForDecl(childDecl); - // Enum member it can never conflict with module name as it is property of the enum - // Only if this child would be emitted we need to look further in - if (childDecl.kind != PullElementKind.EnumMember && this.shouldEmit(childAST)) { - // same name child - if (childDecl.name === moduleName) { - // collision if the parent was not class - if (parentDecl.kind != PullElementKind.Class) { - return true; - } - - // If the parent was class, we would find name collision if this was not a property/method/accessor - if (!(childDecl.kind == PullElementKind.Method || - childDecl.kind == PullElementKind.Property || - childDecl.kind == PullElementKind.SetAccessor || - childDecl.kind == PullElementKind.GetAccessor)) { - return true; - } - } - - // Check if the name collision exists in any of the children - if (this.hasChildNameCollision(moduleName, childDecl)) { - return true; - } - } - return false; - }); - } - - // Get the moduleName to write in js file - // If changeNameIfAnyDeclarationInContext is true, verify if any of the declarations for the symbol would need rename. - private getModuleName(moduleDecl: PullDecl, changeNameIfAnyDeclarationInContext?: boolean) { - var moduleName = moduleDecl.name; - var moduleDisplayName = moduleDecl.getDisplayName(); - - // If the decl is in stack it may need name change in the js file - moduleDecl = this.getModuleDeclToVerifyChildNameCollision(moduleDecl, changeNameIfAnyDeclarationInContext); - if (moduleDecl && moduleDecl.kind != PullElementKind.Enum) { - // If there is any child that would be emitted with same name as module, js files would need to use rename for the module - while (this.hasChildNameCollision(moduleName, moduleDecl)) { - // there was name collision with member which could result in faulty codegen, try rename with prepend of '_' - moduleName = "_" + moduleName; - moduleDisplayName = "_" + moduleDisplayName; - } - } - - return moduleDisplayName; - } - - private emitModuleDeclarationWorker(moduleDecl: ModuleDeclarationSyntax) { - if (moduleDecl.stringLiteral) { - this.emitSingleModuleDeclaration(moduleDecl, moduleDecl.stringLiteral); - } - else { - var moduleNames = ASTHelpers.getModuleNames(moduleDecl.name); - this.emitSingleModuleDeclaration(moduleDecl, moduleNames[0]); - } - } - - private writeToken(token: ISyntaxToken) { - if (token) { - this.writeToOutputWithSourceMapRecord(token.text(), token); - } - } - - public emitSingleModuleDeclaration(moduleDecl: ModuleDeclarationSyntax, moduleName: ISyntaxToken) { - var isLastName = ASTHelpers.isLastNameOfModule(moduleDecl, moduleName); - - if (isLastName) { - // Doc Comments on the ast belong to the innermost module being emitted. - this.emitComments(moduleDecl, true); - } - - var pullDecl = this.semanticInfoChain.getDeclForAST(moduleName); - this.pushDecl(pullDecl); - - var svModuleName = this.moduleName; - - if (moduleDecl.stringLiteral) { - this.moduleName = tokenValueText(moduleDecl.stringLiteral); - if (isTSFile(this.moduleName)) { - this.moduleName = this.moduleName.substring(0, this.moduleName.length - ".ts".length); - } - } - else { - this.moduleName = moduleName.text(); - } - - var temp = this.setContainer(EmitContainer.Module); - var isExported = hasFlag(pullDecl.flags, PullElementFlags.Exported); - - // prologue - - if (!isExported) { - this.recordSourceMappingStart(moduleDecl); - this.writeToOutput("var "); - this.writeToOutputWithSourceMapRecord(this.moduleName, moduleName); - this.writeLineToOutput(";"); - this.recordSourceMappingEnd(moduleDecl); - this.emitIndent(); - } - - this.writeToOutput("("); - this.recordSourceMappingStart(moduleDecl); - this.writeToOutput("function ("); - // Use the name that doesnt conflict with its members, - // this.moduleName needs to be updated to make sure that export member declaration is emitted correctly - this.moduleName = this.getModuleName(pullDecl); - this.writeToOutputWithSourceMapRecord(this.moduleName, moduleName); - this.writeLineToOutput(") {"); - - this.recordSourceMappingNameStart(moduleName.text()); - - this.indenter.increaseIndent(); - - if (this.shouldCaptureThis(moduleDecl)) { - this.writeCaptureThisStatement(moduleDecl); - } - - if (moduleName === moduleDecl.stringLiteral) { - this.emitList(moduleDecl.moduleElements); - } - else { - var moduleNames = ASTHelpers.getModuleNames(moduleDecl.name); - var nameIndex = moduleNames.indexOf(moduleName); - - Debug.assert(nameIndex >= 0); - - if (isLastName) { - // If we're on the innermost module, we can emit the module elements. - this.emitList(moduleDecl.moduleElements); - } - else { - // otherwise, just recurse and emit the next module in the A.B.C module name. - this.emitIndent(); - this.emitSingleModuleDeclaration(moduleDecl, moduleNames[nameIndex + 1]); - this.writeLineToOutput(""); - } - } - - this.moduleName = moduleName.text(); - this.indenter.decreaseIndent(); - this.emitIndent(); - - // epilogue - var parentIsDynamic = temp === EmitContainer.DynamicModule; - this.recordSourceMappingStart(moduleDecl.closeBraceToken); - if (temp === EmitContainer.Prog && isExported) { - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.recordSourceMappingEnd(moduleDecl.closeBraceToken); - this.writeToOutput(")(this." + this.moduleName + " || (this." + this.moduleName + " = {}));"); - } - else if (isExported || temp === EmitContainer.Prog) { - var dotMod = svModuleName !== "" ? (parentIsDynamic ? "exports" : svModuleName) + "." : svModuleName; - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.recordSourceMappingEnd(moduleDecl.closeBraceToken); - this.writeToOutput(")(" + dotMod + this.moduleName + " || (" + dotMod + this.moduleName + " = {}));"); - } - else if (!isExported && temp !== EmitContainer.Prog) { - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.recordSourceMappingEnd(moduleDecl.closeBraceToken); - this.writeToOutput(")(" + this.moduleName + " || (" + this.moduleName + " = {}));"); - } - else { - this.writeToOutput("}"); - this.recordSourceMappingNameEnd(); - this.recordSourceMappingEnd(moduleDecl.closeBraceToken); - this.writeToOutput(")();"); - } - - this.recordSourceMappingEnd(moduleDecl); - if (temp !== EmitContainer.Prog && isExported) { - this.recordSourceMappingStart(moduleDecl); - if (parentIsDynamic) { - this.writeLineToOutput(""); - this.emitIndent(); - this.writeToOutput("var " + this.moduleName + " = exports." + this.moduleName + ";"); - } - else { - this.writeLineToOutput(""); - this.emitIndent(); - this.writeToOutput("var " + this.moduleName + " = " + svModuleName + "." + this.moduleName + ";"); - } - this.recordSourceMappingEnd(moduleDecl); - } - - this.setContainer(temp); - this.moduleName = svModuleName; - - this.popDecl(pullDecl); - - if (isLastName) { - // Comments on the module ast belong to the innermost module being emitted. - this.emitComments(moduleDecl, false); - } - } - - public emitEnumElement(varDecl: EnumElementSyntax): void { - // [[""] = ] = ""; - var pullDecl = this.semanticInfoChain.getDeclForAST(varDecl); - Debug.assert(pullDecl && pullDecl.kind === PullElementKind.EnumMember); - - this.emitComments(varDecl, true); - this.recordSourceMappingStart(varDecl); - - var representation = (varDecl.propertyName.kind() === SyntaxKind.StringLiteral) - ? varDecl.propertyName.text() - : ('"' + tokenValueText(varDecl.propertyName) + '"'); - - this.writeToOutput(this.moduleName); - this.writeToOutput('['); - this.writeToOutput(this.moduleName); - this.writeToOutput('['); - this.writeToOutput(representation); - this.writeToOutput(']'); - - if (varDecl.equalsValueClause) { - this.emit(varDecl.equalsValueClause); - } - else if (pullDecl.constantValue !== null) { - this.writeToOutput(' = '); - this.writeToOutput(pullDecl.constantValue.toString()); - } - else { - this.writeToOutput(' = null'); - } - - this.writeToOutput('] = '); - this.writeToOutput(representation); - this.recordSourceMappingEnd(varDecl); - this.emitComments(varDecl, false); - this.writeToOutput(';'); - } - - public emitElementAccessExpression(expression: ElementAccessExpressionSyntax) { - this.recordSourceMappingStart(expression); - this.emit(expression.expression); - this.writeToken(expression.openBracketToken); - this.emit(expression.argumentExpression); - this.writeToken(expression.closeBracketToken); - this.recordSourceMappingEnd(expression); - } - - public emitSimpleArrowFunctionExpression(arrowFunction: SimpleArrowFunctionExpressionSyntax): void { - this.emitAnyArrowFunctionExpression(arrowFunction, arrowFunction.block, arrowFunction.expression); - } - - public emitParenthesizedArrowFunctionExpression(arrowFunction: ParenthesizedArrowFunctionExpressionSyntax): void { - this.emitAnyArrowFunctionExpression(arrowFunction, arrowFunction.block, arrowFunction.expression); - } - - private emitAnyArrowFunctionExpression(arrowFunction: ISyntaxElement, block: BlockSyntax, expression: ISyntaxElement): void { - var savedInArrowFunction = this.inArrowFunction; - this.inArrowFunction = true; - - var temp = this.setContainer(EmitContainer.Function); - - this.recordSourceMappingStart(arrowFunction); - - // Start - var pullDecl = this.semanticInfoChain.getDeclForAST(arrowFunction); - this.pushDecl(pullDecl); - - this.emitComments(arrowFunction, true); - - this.recordSourceMappingStart(arrowFunction); - this.writeToOutput("function "); - - var parameters: ParameterSyntax[] = null; - if (arrowFunction.kind() === SyntaxKind.ParenthesizedArrowFunctionExpression) { - var parenthesizedArrowFunction = arrowFunction; - - parameters = parenthesizedArrowFunction.callSignature.parameterList.parameters; - this.emitParameterList(parenthesizedArrowFunction.callSignature.parameterList); - } - else { - var parameter = (arrowFunction).parameter; - parameters = [parameter]; - this.writeToOutput("("); - this.emitFunctionParameters(parameter, parameters); - this.writeToOutput(")"); - } - - this.emitFunctionBodyStatements(/*funcName:*/ null, arrowFunction, parameters, block, expression); - - this.recordSourceMappingEnd(arrowFunction); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(arrowFunction); - - this.emitComments(arrowFunction, false); - - this.popDecl(pullDecl); - this.setContainer(temp); - this.inArrowFunction = savedInArrowFunction; - } - - public emitConstructor(funcDecl: ConstructorDeclarationSyntax) { - if (!funcDecl.block) { - return; - } - var temp = this.setContainer(EmitContainer.Constructor); - - this.recordSourceMappingStart(funcDecl); - - var pullDecl = this.semanticInfoChain.getDeclForAST(funcDecl); - this.pushDecl(pullDecl); - - this.emitComments(funcDecl, true); - - this.recordSourceMappingStart(funcDecl); - this.writeToOutput("function "); - this.writeToOutput(this.thisClassNode.identifier.text()); - - this.emitParameterList(funcDecl.callSignature.parameterList); - this.writeLineToOutput(" {"); - - this.recordSourceMappingNameStart("constructor"); - this.indenter.increaseIndent(); - - var parameters = funcDecl.callSignature.parameterList.parameters; - this.emitDefaultValueAssignments(parameters); - this.emitRestParameterInitializer(parameters); - - if (this.shouldCaptureThis(funcDecl)) { - this.writeCaptureThisStatement(funcDecl); - } - - this.emitConstructorStatements(funcDecl); - this.emitCommentsArray(ASTHelpers.convertTokenLeadingComments(funcDecl.block.closeBraceToken, this.text()), /*trailing:*/ false); - - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeToken(funcDecl.block.closeBraceToken); - - this.recordSourceMappingNameEnd(); - this.recordSourceMappingEnd(funcDecl); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(funcDecl); - - this.emitComments(funcDecl, false); - - this.popDecl(pullDecl); - this.setContainer(temp); - } - - public emitGetAccessor(accessor: GetAccessorSyntax): void { - this.recordSourceMappingStart(accessor); - this.writeToOutput("get "); - - var temp = this.setContainer(EmitContainer.Function); - - this.recordSourceMappingStart(accessor); - - var pullDecl = this.semanticInfoChain.getDeclForAST(accessor); - this.pushDecl(pullDecl); - - this.recordSourceMappingStart(accessor); - - var accessorSymbol = PullHelpers.getAccessorSymbol(accessor, this.semanticInfoChain); - var container = accessorSymbol.getContainer(); - var containerKind = container.kind; - - this.recordSourceMappingNameStart(accessor.propertyName.text()); - this.writeToOutput(accessor.propertyName.text()); - this.emitParameterList(accessor.callSignature.parameterList); - - this.emitFunctionBodyStatements(null, accessor, accessor.callSignature.parameterList.parameters, accessor.block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(accessor); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(accessor); - - this.popDecl(pullDecl); - this.setContainer(temp); - this.recordSourceMappingEnd(accessor); - } - - public emitSetAccessor(accessor: SetAccessorSyntax): void { - this.recordSourceMappingStart(accessor); - this.writeToOutput("set "); - - var temp = this.setContainer(EmitContainer.Function); - - this.recordSourceMappingStart(accessor); - - var pullDecl = this.semanticInfoChain.getDeclForAST(accessor); - this.pushDecl(pullDecl); - - this.recordSourceMappingStart(accessor); - - var accessorSymbol = PullHelpers.getAccessorSymbol(accessor, this.semanticInfoChain); - var container = accessorSymbol.getContainer(); - var containerKind = container.kind; - - this.recordSourceMappingNameStart(accessor.propertyName.text()); - this.writeToOutput(accessor.propertyName.text()); - - this.emitParameterList(accessor.callSignature.parameterList); - - this.emitFunctionBodyStatements(null, accessor, accessor.callSignature.parameterList.parameters, accessor.block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(accessor); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(accessor); - - this.popDecl(pullDecl); - this.setContainer(temp); - this.recordSourceMappingEnd(accessor); - } - - public emitFunctionExpression(funcDecl: FunctionExpressionSyntax): void { - var savedInArrowFunction = this.inArrowFunction; - this.inArrowFunction = false; - - var temp = this.setContainer(EmitContainer.Function); - - var funcName = funcDecl.identifier ? funcDecl.identifier.text() : null;//.getNameText(); - - this.recordSourceMappingStart(funcDecl); - - var pullDecl = this.semanticInfoChain.getDeclForAST(funcDecl); - this.pushDecl(pullDecl); - - this.recordSourceMappingStart(funcDecl); - this.writeToken(funcDecl.functionKeyword); - this.writeToOutput(" "); - - //var id = funcDecl.getNameText(); - if (funcDecl.identifier) { - this.writeToOutputWithSourceMapRecord(funcDecl.identifier.text(), funcDecl.identifier); - } - - this.emitParameterList(funcDecl.callSignature.parameterList); - this.emitFunctionBodyStatements(funcName, funcDecl, funcDecl.callSignature.parameterList.parameters, funcDecl.block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(funcDecl); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(funcDecl); - - this.emitComments(funcDecl, false); - - this.popDecl(pullDecl); - - this.setContainer(temp); - this.inArrowFunction = savedInArrowFunction; - } - - public emitFunction(funcDecl: FunctionDeclarationSyntax) { - if (funcDecl.block === null) { - return; - } - var savedInArrowFunction = this.inArrowFunction; - this.inArrowFunction = false; - - var temp = this.setContainer(EmitContainer.Function); - - var funcName = funcDecl.identifier.text(); - - this.recordSourceMappingStart(funcDecl); - - var printName = funcDecl.identifier !== null - var pullDecl = this.semanticInfoChain.getDeclForAST(funcDecl); - this.pushDecl(pullDecl); - - this.emitComments(funcDecl, true); - - this.recordSourceMappingStart(funcDecl); - this.writeToken(funcDecl.functionKeyword); - this.writeToOutput(" "); - - if (printName) { - var id = funcDecl.identifier.text(); - if (id) { - if (funcDecl.identifier) { - this.recordSourceMappingStart(funcDecl.identifier); - } - this.writeToOutput(id); - if (funcDecl.identifier) { - this.recordSourceMappingEnd(funcDecl.identifier); - } - } - } - - this.emitParameterList(funcDecl.callSignature.parameterList); - - var parameters = funcDecl.callSignature.parameterList.parameters; - this.emitFunctionBodyStatements(funcDecl.identifier.text(), funcDecl, parameters, funcDecl.block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(funcDecl); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(funcDecl); - - this.emitComments(funcDecl, false); - - this.popDecl(pullDecl); - - this.setContainer(temp); - this.inArrowFunction = savedInArrowFunction; - - if (funcDecl.block) { - var pullFunctionDecl = this.semanticInfoChain.getDeclForAST(funcDecl); - if ((this.emitState.container === EmitContainer.Module || this.emitState.container === EmitContainer.DynamicModule) && pullFunctionDecl && hasFlag(pullFunctionDecl.flags, PullElementFlags.Exported)) { - this.writeLineToOutput(""); - this.emitIndent(); - var modName = this.emitState.container === EmitContainer.Module ? this.moduleName : "exports"; - this.recordSourceMappingStart(funcDecl); - this.writeToOutput(modName + "." + funcName + " = " + funcName + ";"); - this.recordSourceMappingEnd(funcDecl); - } - } - } - - public emitAmbientVarDecl(varDecl: VariableDeclaratorSyntax) { - this.recordSourceMappingStart(this.currentVariableDeclaration); - if (varDecl.equalsValueClause) { - this.emitComments(varDecl, true); - this.recordSourceMappingStart(varDecl); - this.writeToOutputWithSourceMapRecord(varDecl.propertyName.text(), varDecl.propertyName); - this.emitJavascript(varDecl.equalsValueClause, false); - this.recordSourceMappingEnd(varDecl); - this.emitComments(varDecl, false); - } - } - - // Emits "var " if it is allowed - public emitVarDeclVar() { - if (this.currentVariableDeclaration) { - this.writeToOutput("var "); - } - } - - public emitVariableDeclaration(declaration: VariableDeclarationSyntax) { - var varDecl = declaration.variableDeclarators[0]; - - var symbol = this.semanticInfoChain.getSymbolForAST(varDecl); - - var parentSymbol = symbol ? symbol.getContainer() : null; - var parentKind = parentSymbol ? parentSymbol.kind : PullElementKind.None; - - this.emitComments(declaration, true); - - var pullVarDecl = this.semanticInfoChain.getDeclForAST(varDecl); - var isAmbientWithoutInit = pullVarDecl && hasFlag(pullVarDecl.flags, PullElementFlags.Ambient) && varDecl.equalsValueClause === null; - if (!isAmbientWithoutInit) { - var prevVariableDeclaration = this.currentVariableDeclaration; - this.currentVariableDeclaration = declaration; - - for (var i = 0, n = declaration.variableDeclarators.length; i < n; i++) { - var declarator = declaration.variableDeclarators[i]; - - if (i > 0) { - this.writeToOutput(", "); - } - - this.emit(declarator); - } - this.currentVariableDeclaration = prevVariableDeclaration; - - // Declarator emit would take care of emitting start of the variable declaration start - this.recordSourceMappingEnd(declaration); - } - - this.emitComments(declaration, false); - } - - private emitMemberVariableDeclaration(varDecl: MemberVariableDeclarationSyntax) { - Debug.assert(!hasModifier(varDecl.modifiers, PullElementFlags.Static) && varDecl.variableDeclarator.equalsValueClause); - - var pullDecl = this.semanticInfoChain.getDeclForAST(varDecl); - this.pushDecl(pullDecl); - - this.emitComments(varDecl, true); - this.recordSourceMappingStart(varDecl); - - var varDeclName = varDecl.variableDeclarator.propertyName.text(); - var quotedOrNumber = isQuoted(varDeclName) || varDecl.variableDeclarator.propertyName.kind() !== SyntaxKind.IdentifierName; - - var symbol = this.semanticInfoChain.getSymbolForAST(varDecl); - var parentSymbol = symbol ? symbol.getContainer() : null; - var parentDecl = pullDecl && pullDecl.getParentDecl(); - - if (quotedOrNumber) { - this.writeToOutput("this["); - } - else { - this.writeToOutput("this."); - } - - this.writeToOutputWithSourceMapRecord(varDecl.variableDeclarator.propertyName.text(), varDecl.variableDeclarator.propertyName); - - if (quotedOrNumber) { - this.writeToOutput("]"); - } - - if (varDecl.variableDeclarator.equalsValueClause) { - // Ensure we have a fresh var list count when recursing into the variable - // initializer. We don't want our current list of variables to affect how we - // emit nested variable lists. - var prevVariableDeclaration = this.currentVariableDeclaration; - this.emit(varDecl.variableDeclarator.equalsValueClause); - this.currentVariableDeclaration = prevVariableDeclaration; - } - - // class - if (this.emitState.container !== EmitContainer.Args) { - this.writeToOutput(";"); - } - - this.recordSourceMappingEnd(varDecl); - this.emitComments(varDecl, false); - - this.popDecl(pullDecl); - } - - public emitVariableDeclarator(varDecl: VariableDeclaratorSyntax) { - var pullDecl = this.semanticInfoChain.getDeclForAST(varDecl); - this.pushDecl(pullDecl); - if (pullDecl && (pullDecl.flags & PullElementFlags.Ambient) === PullElementFlags.Ambient) { - this.emitAmbientVarDecl(varDecl); - } - else { - this.emitComments(varDecl, true); - this.recordSourceMappingStart(this.currentVariableDeclaration); - this.recordSourceMappingStart(varDecl); - - var varDeclName = varDecl.propertyName.text(); - - var symbol = this.semanticInfoChain.getSymbolForAST(varDecl); - var parentSymbol = symbol ? symbol.getContainer() : null; - var parentDecl = pullDecl && pullDecl.getParentDecl(); - var parentIsModule = parentDecl && (parentDecl.flags & PullElementFlags.SomeInitializedModule); - - if (parentIsModule) { - // module - if (!hasFlag(pullDecl.flags, PullElementFlags.Exported)/* && !varDecl.isProperty() */) { - this.emitVarDeclVar(); - } - else { - if (this.emitState.container === EmitContainer.DynamicModule) { - this.writeToOutput("exports."); - } - else { - this.writeToOutput(this.moduleName + "."); - } - } - } - else { - this.emitVarDeclVar(); - } - - this.writeToOutputWithSourceMapRecord(varDecl.propertyName.text(), varDecl.propertyName); - - if (varDecl.equalsValueClause) { - // Ensure we have a fresh var list count when recursing into the variable - // initializer. We don't want our current list of variables to affect how we - // emit nested variable lists. - var prevVariableDeclaration = this.currentVariableDeclaration; - this.emit(varDecl.equalsValueClause); - this.currentVariableDeclaration = prevVariableDeclaration; - } - - this.recordSourceMappingEnd(varDecl); - this.emitComments(varDecl, false); - } - this.currentVariableDeclaration = undefined; - this.popDecl(pullDecl); - } - - private symbolIsUsedInItsEnclosingContainer(symbol: PullSymbol, dynamic = false) { - var symDecls = symbol.getDeclarations(); - - if (symDecls.length) { - var enclosingDecl = this.getEnclosingDecl(); - if (enclosingDecl) { - var parentDecl = symDecls[0].getParentDecl(); - if (parentDecl) { - var symbolDeclarationEnclosingContainer = parentDecl; - var enclosingContainer = enclosingDecl; - - // compute the closing container of the symbol's declaration - while (symbolDeclarationEnclosingContainer) { - if (symbolDeclarationEnclosingContainer.kind === (dynamic ? PullElementKind.DynamicModule : PullElementKind.Container)) { - break; - } - symbolDeclarationEnclosingContainer = symbolDeclarationEnclosingContainer.getParentDecl(); - } - - // if the symbol in question is not a global, compute the nearest - // enclosing declaration from the point of usage - if (symbolDeclarationEnclosingContainer) { - while (enclosingContainer) { - if (enclosingContainer.kind === (dynamic ? PullElementKind.DynamicModule : PullElementKind.Container)) { - break; - } - - enclosingContainer = enclosingContainer.getParentDecl(); - } - } - - if (symbolDeclarationEnclosingContainer && enclosingContainer) { - var same = symbolDeclarationEnclosingContainer === enclosingContainer; - - // initialized module object variables are bound to their parent's decls - if (!same && symbol.anyDeclHasFlag(PullElementFlags.InitializedModule)) { - same = symbolDeclarationEnclosingContainer === enclosingContainer.getParentDecl(); - } - - return same; - } - } - } - } - - return false; - } - - // In some cases, when emitting a name, the emitter needs to qualify a symbol - // name by first emitting its parent's name. This generally happens when the - // name referenced is in scope in TypeScript, but not in Javascript. This is true - // in any of the following 3 cases: - // - It is an enum member, even if accessed from within the enum declaration in which it is defined - // - It is an exported var, even if accessed from within the module declaration in which it is defined - // - It is an exported member of the current module, but is never defined in this particular module - // declaration (i.e. it is only defined in other components of the same merged module) - private shouldQualifySymbolNameWithParentName(symbol: PullSymbol): boolean { - var enclosingContextDeclPath = this.declStack; - var symbolDeclarations = symbol.getDeclarations(); - for (var i = 0; i < symbolDeclarations.length; i++) { - var currentDecl = symbolDeclarations[i]; - var declParent = currentDecl.getParentDecl(); - - if (currentDecl.kind === PullElementKind.EnumMember) { - return true; - } - - // All decls of the same symbol must agree on whether they are exported - // If one decl is not exported, none of them are, and it is safe to - // assume it is just a local - if (!hasFlag(currentDecl.flags, PullElementFlags.Exported)) { - return false; - } - - // Section 10.6: - // When a variable is exported, all references to the variable in the body of the - // module are replaced with - // .< VariableName> - if (currentDecl.kind === PullElementKind.Variable && !hasFlag(currentDecl.flags, PullElementFlags.ImplicitVariable)) { - return true; - } - - if (ArrayUtilities.contains(this.declStack, declParent)) { - return false; - } - } - - return true; - } - - // Get the symbol information to be used for emitting the ast - private getSymbolForEmit(ast: ISyntaxElement) { - var pullSymbol = this.semanticInfoChain.getSymbolForAST(ast); - var pullSymbolAlias = this.semanticInfoChain.getAliasSymbolForAST(ast); - if (pullSymbol && pullSymbolAlias) { - var symbolToCompare = isTypesOnlyLocation(ast) ? - pullSymbolAlias.getExportAssignedTypeSymbol() : - pullSymbolAlias.getExportAssignedValueSymbol(); - - if (pullSymbol === symbolToCompare) { - pullSymbol = pullSymbolAlias; - pullSymbolAlias = null; - } - } - return { symbol: pullSymbol, aliasSymbol: pullSymbolAlias }; - } - - public emitName(name: ISyntaxToken, addThis: boolean) { - this.emitComments(name, true); - this.recordSourceMappingStart(name); - if (name.text().length > 0) { - var symbolForEmit = this.getSymbolForEmit(name); - var pullSymbol = symbolForEmit.symbol; - if (!pullSymbol) { - pullSymbol = this.semanticInfoChain.anyTypeSymbol; - } - var pullSymbolAlias = symbolForEmit.aliasSymbol; - var pullSymbolKind = pullSymbol.kind; - var isLocalAlias = pullSymbolAlias && (pullSymbolAlias.getDeclarations()[0].getParentDecl() === this.getEnclosingDecl()); - if (addThis && (this.emitState.container !== EmitContainer.Args) && pullSymbol) { - var pullSymbolContainer = pullSymbol.getContainer(); - - if (pullSymbolContainer) { - var pullSymbolContainerKind = pullSymbolContainer.kind; - - if (PullHelpers.symbolIsModule(pullSymbolContainer) || pullSymbolContainerKind === PullElementKind.Enum || - pullSymbolContainer.anyDeclHasFlag(PullElementFlags.InitializedModule | PullElementFlags.Enum)) { - var needToEmitParentName = this.shouldQualifySymbolNameWithParentName(pullSymbol); - if (needToEmitParentName) { - var parentDecl = pullSymbol.getDeclarations()[0].getParentDecl(); - Debug.assert(parentDecl && !parentDecl.isRootDecl()); - this.writeToOutput(this.getModuleName(parentDecl, /* changeNameIfAnyDeclarationInContext */ true) + "."); - } - } - else if (pullSymbolContainerKind === PullElementKind.DynamicModule || - pullSymbolContainer.anyDeclHasFlag(PullElementFlags.InitializedDynamicModule)) { - if (pullSymbolKind === PullElementKind.Property) { - // If dynamic module - this.writeToOutput("exports."); - } - else if (pullSymbol.anyDeclHasFlag(PullElementFlags.Exported) && - !isLocalAlias && - !pullSymbol.anyDeclHasFlag(PullElementFlags.ImplicitVariable) && - pullSymbol.kind !== PullElementKind.ConstructorMethod && - pullSymbol.kind !== PullElementKind.Class && - pullSymbol.kind !== PullElementKind.Enum) { - this.writeToOutput("exports."); - } - } - } - } - - this.writeToOutput(name.text()); - } - - this.recordSourceMappingEnd(name); - this.emitComments(name, false); - } - - public recordSourceMappingNameStart(name: string) { - if (this.sourceMapper) { - var nameIndex = -1; - if (name) { - if (this.sourceMapper.currentNameIndex.length > 0) { - var parentNameIndex = this.sourceMapper.currentNameIndex[this.sourceMapper.currentNameIndex.length - 1]; - if (parentNameIndex !== -1) { - name = this.sourceMapper.names[parentNameIndex] + "." + name; - } - } - - // Look if there already exists name - var nameIndex = this.sourceMapper.names.length - 1; - for (nameIndex; nameIndex >= 0; nameIndex--) { - if (this.sourceMapper.names[nameIndex] === name) { - break; - } - } - - if (nameIndex === -1) { - nameIndex = this.sourceMapper.names.length; - this.sourceMapper.names.push(name); - } - } - this.sourceMapper.currentNameIndex.push(nameIndex); - } - } - - public recordSourceMappingNameEnd() { - if (this.sourceMapper) { - this.sourceMapper.currentNameIndex.pop(); - } - } - - private recordSourceMappingStart(ast: ISyntaxElement) { - if (this.sourceMapper && ASTHelpers.isValidAstNode(ast)) { - var text = this.text(); - this.recordSourceMappingSpanStart(ast, start(ast, text), end(ast, text)); - } - } - - private recordSourceMappingCommentStart(comment: Comment) { - this.recordSourceMappingSpanStart(comment, comment.start(), comment.end()); - } - - private recordSourceMappingSpanStart(ast: any, start: number, end: number) { - if (this.sourceMapper && ast && start !== -1 && end !== -1) { - var lineCol = { line: -1, character: -1 }; - var sourceMapping = new SourceMapping(); - sourceMapping.start.emittedColumn = this.emitState.column; - sourceMapping.start.emittedLine = this.emitState.line; - // REVIEW: check time consumed by this binary search (about two per leaf statement) - var lineMap = this.document.lineMap(); - lineMap.fillLineAndCharacterFromPosition(start, lineCol); - sourceMapping.start.sourceColumn = lineCol.character; - sourceMapping.start.sourceLine = lineCol.line + 1; - lineMap.fillLineAndCharacterFromPosition(end, lineCol); - sourceMapping.end.sourceColumn = lineCol.character; - sourceMapping.end.sourceLine = lineCol.line + 1; - - Debug.assert(!isNaN(sourceMapping.start.emittedColumn)); - Debug.assert(!isNaN(sourceMapping.start.emittedLine)); - Debug.assert(!isNaN(sourceMapping.start.sourceColumn)); - Debug.assert(!isNaN(sourceMapping.start.sourceLine)); - Debug.assert(!isNaN(sourceMapping.end.sourceColumn)); - Debug.assert(!isNaN(sourceMapping.end.sourceLine)); - - if (this.sourceMapper.currentNameIndex.length > 0) { - sourceMapping.nameIndex = this.sourceMapper.currentNameIndex[this.sourceMapper.currentNameIndex.length - 1]; - } - // Set parent and child relationship - var siblings = this.sourceMapper.currentMappings[this.sourceMapper.currentMappings.length - 1]; - siblings.push(sourceMapping); - this.sourceMapper.currentMappings.push(sourceMapping.childMappings); - this.sourceMapper.increaseMappingLevel(ast); - } - } - - private recordSourceMappingEnd(ast: ISyntaxElement) { - if (this.sourceMapper && ASTHelpers.isValidAstNode(ast)) { - var text = this.text(); - this.recordSourceMappingSpanEnd(ast, start(ast, text), end(ast, text)); - } - } - - private recordSourceMappingCommentEnd(ast: Comment) { - if (this.sourceMapper && ASTHelpers.isValidSpan(ast)) { - this.recordSourceMappingSpanEnd(ast, ast.start(), ast.end()); - } - } - - private recordSourceMappingSpanEnd(ast: any, start: number, end: number) { - if (this.sourceMapper && ast && start !== -1 && end !== -1) { - // Pop source mapping childs - this.sourceMapper.currentMappings.pop(); - - // Get the last source mapping from sibling list = which is the one we are recording end for - var siblings = this.sourceMapper.currentMappings[this.sourceMapper.currentMappings.length - 1]; - var sourceMapping = siblings[siblings.length - 1]; - - sourceMapping.end.emittedColumn = this.emitState.column; - sourceMapping.end.emittedLine = this.emitState.line; - - Debug.assert(!isNaN(sourceMapping.end.emittedColumn)); - Debug.assert(!isNaN(sourceMapping.end.emittedLine)); - - this.sourceMapper.decreaseMappingLevel(ast); - } - } - - // Note: may throw exception. - public getOutputFiles(): OutputFile[] { - // Output a source mapping. As long as we haven't gotten any errors yet. - var result: OutputFile[] = []; - if (this.sourceMapper !== null) { - this.sourceMapper.emitSourceMapping(); - result.push(this.sourceMapper.getOutputFile()); - } - - result.push(this.outfile.getOutputFile()); - return result; - } - - private emitParameterPropertyAndMemberVariableAssignments(): void { - // emit any parameter properties first - var constructorDecl = getLastConstructor(this.thisClassNode); - - if (constructorDecl) { - for (var i = 0, n = constructorDecl.callSignature.parameterList.parameters.length; i < n; i++) { - var parameter = constructorDecl.callSignature.parameterList.parameters[i]; - - var parameterDecl = this.semanticInfoChain.getDeclForAST(parameter); - if (hasFlag(parameterDecl.flags, PullElementFlags.PropertyParameter)) { - this.emitIndent(); - this.recordSourceMappingStart(parameter); - this.writeToOutputWithSourceMapRecord("this." + parameter.identifier.text(), parameter.identifier); - this.writeToOutput(" = "); - this.writeToOutputWithSourceMapRecord(parameter.identifier.text(), parameter.identifier); - this.writeLineToOutput(";"); - this.recordSourceMappingEnd(parameter); - } - } - } - - for (var i = 0, n = this.thisClassNode.classElements.length; i < n; i++) { - if (this.thisClassNode.classElements[i].kind() === SyntaxKind.MemberVariableDeclaration) { - var varDecl = this.thisClassNode.classElements[i]; - if (!hasModifier(varDecl.modifiers, PullElementFlags.Static) && varDecl.variableDeclarator.equalsValueClause) { - this.emitIndent(); - this.emitMemberVariableDeclaration(varDecl); - this.writeLineToOutput(""); - } - } - } - } - - private isOnSameLine(pos1: number, pos2: number): boolean { - if (pos1 < 0 || pos2 < 0) { - // Missing element. Assume it's on the same line as the other element. - return true; - } - - var lineMap = this.document.lineMap(); - return lineMap.getLineNumberFromPosition(pos1) === lineMap.getLineNumberFromPosition(pos2); - } - - private emitCommaSeparatedList(parent: ISyntaxElement, list: T[], buffer: string, preserveNewLines: boolean): void { - if (list === null || list.length === 0) { - return; - } - - // If the first element isn't on hte same line as the parent node, then we need to - // start with a newline. - var text = this.text(); - var startLine = preserveNewLines && !this.isOnSameLine(end(parent, text), end(list[0], text)); - - if (preserveNewLines) { - // Any elements on a new line will have to be indented. - this.indenter.increaseIndent(); - } - - // If we're starting on a newline, then emit an actual newline. Otherwise write out - // the buffer character before hte first element. - if (startLine) { - this.writeLineToOutput(""); - } - else { - this.writeToOutput(buffer); - } - - for (var i = 0, n = list.length; i < n; i++) { - var emitNode = list[i]; - - // Write out the element, emitting an indent if we're on a new line. - this.emitJavascript(emitNode, startLine); - - if (i < (n - 1)) { - // If the next element start on a different line than this element ended on, - // then we want to start on a newline. Emit the comma with a newline. - // Otherwise, emit the comma with the space. - startLine = preserveNewLines && !this.isOnSameLine(end(emitNode, text), start(list[i + 1], text)); - if (startLine) { - this.writeLineToOutput(","); - } - else { - this.writeToOutput(", "); - } - } - } - - if (preserveNewLines) { - // We're done with all the elements. Return the indent back to where it was. - this.indenter.decreaseIndent(); - } - - // If the last element isn't on the same line as the parent, then emit a newline - // after the last element and emit our indent so the list's terminator will be - // on the right line. Otherwise, emit the buffer string between the last value - // and the terminator. - if (preserveNewLines && !this.isOnSameLine(end(parent, text), end(list[list.length - 1], text))) { - this.writeLineToOutput(""); - this.emitIndent(); - } - else { - this.writeToOutput(buffer); - } - } - - public emitList(list: T[], useNewLineSeparator = true, startInclusive = 0, endExclusive = list.length) { - if (list === null) { - return; - } - - this.emitComments(list, true); - var lastEmittedNode: ISyntaxElement = null; - - for (var i = startInclusive; i < endExclusive; i++) { - var node = list[i]; - - if (this.shouldEmit(node)) { - this.emitSpaceBetweenConstructs(lastEmittedNode, node); - - this.emitJavascript(node, true); - if (useNewLineSeparator) { - this.writeLineToOutput(""); - } - - lastEmittedNode = node; - } - } - - this.emitComments(list, false); - } - - public emitSeparatedList(list: T[], useNewLineSeparator = true, startInclusive = 0, endExclusive = list.length) { - if (list === null) { - return; - } - - this.emitComments(list, true); - var lastEmittedNode: ISyntaxElement = null; - - for (var i = startInclusive; i < endExclusive; i++) { - var node = list[i]; - - if (this.shouldEmit(node)) { - this.emitSpaceBetweenConstructs(lastEmittedNode, node); - - this.emitJavascript(node, true); - if (useNewLineSeparator) { - this.writeLineToOutput(""); - } - - lastEmittedNode = node; - } - } - - this.emitComments(list, false); - } - - private isDirectivePrologueElement(node: ISyntaxElement) { - if (node.kind() === SyntaxKind.ExpressionStatement) { - var exprStatement = node; - return exprStatement.expression.kind() === SyntaxKind.StringLiteral; - } - - return false; - } - - // If these two constructs had more than one line between them originally, then emit at - // least one blank line between them. - public emitSpaceBetweenConstructs(node1: ISyntaxElement, node2: ISyntaxElement): void { - if (node1 === null || node2 === null) { - return; - } - - var text = this.text(); - if (start(node1, text) === -1 || end(node1, text) === -1 || start(node2, text) === -1 || end(node2, text) === -1) { - return; - } - - var lineMap = this.document.lineMap(); - var node1EndLine = lineMap.getLineNumberFromPosition(end(node1, text)); - var node2StartLine = lineMap.getLineNumberFromPosition(start(node2, text)); - - if ((node2StartLine - node1EndLine) > 1) { - this.writeLineToOutput("", /*force:*/ true); - } - } - - // We consider a sequence of comments to be a detached from an ast if there are no blank lines - // between them, and there is a blank line after the last one and the node they're attached - // to. - private getDetachedComments(element: ISyntaxElement): Comment[] { - var text = this.text(); - var preComments = TypeScript.ASTHelpers.preComments(element, text); - if (preComments) { - var lineMap = this.document.lineMap(); - - var detachedComments: Comment[] = []; - var lastComment: Comment = null; - - for (var i = 0, n = preComments.length; i < n; i++) { - var comment = preComments[i]; - - if (lastComment) { - var lastCommentLine = lineMap.getLineNumberFromPosition(lastComment.end()); - var commentLine = lineMap.getLineNumberFromPosition(comment.start()); - - if (commentLine >= lastCommentLine + 2) { - // There was a blank line between the last comment and this comment. This - // comment is not part of the copyright comments. Return what we have so - // far. - return detachedComments; - } - } - - detachedComments.push(comment); - lastComment = comment; - } - - // All comments look like they could have been part of the copyright header. Make - // sure there is at least one blank line between it and the node. If not, it's not - // a copyright header. - var lastCommentLine = lineMap.getLineNumberFromPosition(ArrayUtilities.last(detachedComments).end()); - var astLine = lineMap.getLineNumberFromPosition(start(element, text)); - if (astLine >= lastCommentLine + 2) { - return detachedComments; - } - } - - // No usable copyright comments found. - return []; - } - - private emitPossibleCopyrightHeaders(script: SourceUnitSyntax): void { - this.emitDetachedComments(script.moduleElements); - } - - private emitDetachedComments(list: ISyntaxNodeOrToken[]): void { - if (list.length > 0) { - var firstElement = childAt(list, 0); - - this.detachedCommentsElement = firstElement; - this.emitCommentsArray(this.getDetachedComments(this.detachedCommentsElement), /*trailing:*/ false); - } - } - - public emitScriptElements(sourceUnit: SourceUnitSyntax) { - var list = sourceUnit.moduleElements; - - this.emitPossibleCopyrightHeaders(sourceUnit); - - // First, emit all the prologue elements. - for (var i = 0, n = list.length; i < n; i++) { - var node = list[i]; - - if (!this.isDirectivePrologueElement(node)) { - break; - } - - this.emitJavascript(node, true); - this.writeLineToOutput(""); - } - - // Now emit __extends or a _this capture if necessary. - this.emitPrologue(sourceUnit); - - var isExternalModule = this.document.syntaxTree().isExternalModule(); - var isNonElidedExternalModule = isExternalModule && !ASTHelpers.scriptIsElided(sourceUnit); - if (isNonElidedExternalModule) { - this.recordSourceMappingStart(sourceUnit); - - if (this.emitOptions.compilationSettings().moduleGenTarget() === ModuleGenTarget.Asynchronous) { // AMD - var dependencyList = "[\"require\", \"exports\""; - var importList = "require, exports"; - - var importAndDependencyList = this.getModuleImportAndDependencyList(sourceUnit); - importList += importAndDependencyList.importList; - dependencyList += importAndDependencyList.dependencyList + "]"; - - this.writeLineToOutput("define(" + dependencyList + "," + " function(" + importList + ") {"); - } - } - - if (isExternalModule) { - var temp = this.setContainer(EmitContainer.DynamicModule); - - var svModuleName = this.moduleName; - this.moduleName = syntaxTree(sourceUnit).fileName(); - if (TypeScript.isTSFile(this.moduleName)) { - this.moduleName = this.moduleName.substring(0, this.moduleName.length - ".ts".length); - } - - // if the external module has an "export =" identifier, we'll - // set it in the ExportAssignment emit method - this.setExportAssignment(null); - - if(this.emitOptions.compilationSettings().moduleGenTarget() === ModuleGenTarget.Asynchronous) { - this.indenter.increaseIndent(); - } - - var externalModule = this.semanticInfoChain.getDeclForAST(this.document.sourceUnit()); - - if (hasFlag(externalModule.flags, PullElementFlags.MustCaptureThis)) { - this.writeCaptureThisStatement(sourceUnit); - } - - this.pushDecl(externalModule); - } - - this.emitList(list, /*useNewLineSeparator:*/ true, /*startInclusive:*/ i, /*endExclusive:*/ n); - - if (isExternalModule) { - if (this.emitOptions.compilationSettings().moduleGenTarget() === ModuleGenTarget.Asynchronous) { - this.indenter.decreaseIndent(); - } - - if (isNonElidedExternalModule) { - var exportAssignment = this.getExportAssignment(); - var exportAssignmentIdentifierText = exportAssignment ? exportAssignment.identifier.text() : null; - var exportAssignmentValueSymbol = (externalModule.getSymbol(this.semanticInfoChain)).getExportAssignedValueSymbol(); - - if (this.emitOptions.compilationSettings().moduleGenTarget() === ModuleGenTarget.Asynchronous) { // AMD - if (exportAssignmentIdentifierText && exportAssignmentValueSymbol && !(exportAssignmentValueSymbol.kind & PullElementKind.SomeTypeReference)) { - // indent was decreased for AMD above - this.indenter.increaseIndent(); - this.emitIndent(); - this.writeToOutputWithSourceMapRecord("return " + exportAssignmentIdentifierText, exportAssignment); - this.writeLineToOutput(";"); - this.indenter.decreaseIndent(); - } - this.writeToOutput("});"); - } - else if (exportAssignmentIdentifierText && exportAssignmentValueSymbol && !(exportAssignmentValueSymbol.kind & PullElementKind.SomeTypeReference)) { - this.emitIndent(); - this.writeToOutputWithSourceMapRecord("module.exports = " + exportAssignmentIdentifierText, exportAssignment); - this.writeToOutput(";"); - } - - this.recordSourceMappingEnd(sourceUnit); - this.writeLineToOutput(""); - } - - this.setContainer(temp); - this.moduleName = svModuleName; - this.popDecl(externalModule); - } - } - - public emitConstructorStatements(funcDecl: ConstructorDeclarationSyntax) { - var list = funcDecl.block.statements; - - if (list === null) { - return; - } - - this.emitComments(list, true); - - var emitPropertyAssignmentsAfterSuperCall = ASTHelpers.getExtendsHeritageClause(this.thisClassNode.heritageClauses) !== null; - var propertyAssignmentIndex = emitPropertyAssignmentsAfterSuperCall ? 1 : 0; - var lastEmittedNode: ISyntaxElement = null; - - for (var i = 0, n = list.length; i < n; i++) { - // In some circumstances, class property initializers must be emitted immediately after the 'super' constructor - // call which, in these cases, must be the first statement in the constructor body - if (i === propertyAssignmentIndex) { - this.emitParameterPropertyAndMemberVariableAssignments(); - } - - var node = list[i]; - - if (this.shouldEmit(node)) { - this.emitSpaceBetweenConstructs(lastEmittedNode, node); - - this.emitJavascript(node, true); - this.writeLineToOutput(""); - - lastEmittedNode = node; - } - } - - if (i === propertyAssignmentIndex) { - this.emitParameterPropertyAndMemberVariableAssignments(); - } - - this.emitComments(list, false); - } - - // tokenId is the id the preceding token - public emitJavascript(ast: ISyntaxElement, startLine: boolean) { - if (ast === null) { - return; - } - - if (startLine && - this.indenter.indentAmt > 0) { - - this.emitIndent(); - } - - this.emit(ast); - } - - public emitAccessorMemberDeclaration(funcDecl: ISyntaxElement, name: ISyntaxToken, className: string, isProto: boolean) { - if (funcDecl.kind() !== SyntaxKind.GetAccessor) { - var accessorSymbol = PullHelpers.getAccessorSymbol(funcDecl, this.semanticInfoChain); - if (accessorSymbol.getGetter()) { - return; - } - } - - this.emitIndent(); - this.recordSourceMappingStart(funcDecl); - - this.writeToOutput("Object.defineProperty(" + className); - if (isProto) { - this.writeToOutput(".prototype, "); - } - else { - this.writeToOutput(", "); - } - - var functionName = name.text(); - if (isQuoted(functionName)) { - this.writeToOutput(functionName); - } - else { - this.writeToOutput('"' + functionName + '"'); - } - - this.writeLineToOutput(", {"); - - this.indenter.increaseIndent(); - - var accessors = PullHelpers.getGetterAndSetterFunction(funcDecl, this.semanticInfoChain); - if (accessors.getter) { - this.emitIndent(); - this.recordSourceMappingStart(accessors.getter); - this.emitComments(accessors.getter, true); - this.writeToOutput("get: "); - this.emitAccessorBody(accessors.getter, accessors.getter.callSignature.parameterList, accessors.getter.block); - this.writeLineToOutput(","); - } - - if (accessors.setter) { - this.emitIndent(); - this.recordSourceMappingStart(accessors.setter); - this.emitComments(accessors.setter, true); - this.writeToOutput("set: "); - this.emitAccessorBody(accessors.setter, accessors.setter.callSignature.parameterList, accessors.setter.block); - this.writeLineToOutput(","); - } - - this.emitIndent(); - this.writeLineToOutput("enumerable: true,"); - this.emitIndent(); - this.writeLineToOutput("configurable: true"); - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeLineToOutput("});"); - this.recordSourceMappingEnd(funcDecl); - } - - private emitAccessorBody(funcDecl: ISyntaxElement, parameterList: ParameterListSyntax, block: BlockSyntax): void { - var pullDecl = this.semanticInfoChain.getDeclForAST(funcDecl); - this.pushDecl(pullDecl); - - this.recordSourceMappingStart(funcDecl); - this.writeToOutput("function "); - this.emitParameterList(parameterList); - - var parameters = parameterList.parameters; - this.emitFunctionBodyStatements(null, funcDecl, parameters, block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(funcDecl); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(funcDecl); - this.popDecl(pullDecl); - } - - public emitClass(classDecl: ClassDeclarationSyntax) { - var pullDecl = this.semanticInfoChain.getDeclForAST(classDecl); - this.pushDecl(pullDecl); - - var svClassNode = this.thisClassNode; - this.thisClassNode = classDecl; - var className = classDecl.identifier.text(); - this.emitComments(classDecl, true); - var temp = this.setContainer(EmitContainer.Class); - - this.recordSourceMappingStart(classDecl); - this.writeToOutput("var " + className); - - var hasBaseClass = ASTHelpers.getExtendsHeritageClause(classDecl.heritageClauses) !== null; - var baseTypeReference: ISyntaxElement = null; - var varDecl: VariableDeclaratorSyntax = null; - - if (hasBaseClass) { - this.writeLineToOutput(" = (function (_super) {"); - } - else { - this.writeLineToOutput(" = (function () {"); - } - - this.recordSourceMappingNameStart(className); - this.indenter.increaseIndent(); - - if (hasBaseClass) { - baseTypeReference = ASTHelpers.getExtendsHeritageClause(classDecl.heritageClauses).typeNames[0]; - this.emitIndent(); - this.writeToOutputWithSourceMapRecord("__extends(" + className + ", _super)", baseTypeReference); - this.writeLineToOutput(";"); - } - - this.emitIndent(); - - var constrDecl = getLastConstructor(classDecl); - - // output constructor - if (constrDecl) { - // declared constructor - this.emit(constrDecl); - this.writeLineToOutput(""); - } - else { - this.recordSourceMappingStart(classDecl); - // default constructor - this.indenter.increaseIndent(); - this.writeLineToOutput("function " + classDecl.identifier.text() + "() {"); - this.recordSourceMappingNameStart("constructor"); - if (hasBaseClass) { - this.emitIndent(); - this.writeToOutputWithSourceMapRecord("_super.apply(this, arguments)", baseTypeReference); - this.writeLineToOutput(";"); - } - - if (this.shouldCaptureThis(classDecl)) { - this.writeCaptureThisStatement(classDecl); - } - - this.emitParameterPropertyAndMemberVariableAssignments(); - - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeToken(classDecl.closeBraceToken); - this.writeLineToOutput(""); - - this.recordSourceMappingNameEnd(); - this.recordSourceMappingEnd(classDecl); - } - - this.emitClassMembers(classDecl); - - this.emitIndent(); - this.writeToOutputWithSourceMapRecord("return " + className + ";", classDecl.closeBraceToken); - this.writeLineToOutput(""); - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeToken(classDecl.closeBraceToken); - this.recordSourceMappingNameEnd(); - this.recordSourceMappingStart(classDecl); - this.writeToOutput(")("); - if (hasBaseClass) { - this.emitJavascript(baseTypeReference, /*startLine:*/ false); - } - this.writeToOutput(");"); - this.recordSourceMappingEnd(classDecl); - - if ((temp === EmitContainer.Module || temp === EmitContainer.DynamicModule) && hasFlag(pullDecl.flags, PullElementFlags.Exported)) { - this.writeLineToOutput(""); - this.emitIndent(); - var modName = temp === EmitContainer.Module ? this.moduleName : "exports"; - this.writeToOutputWithSourceMapRecord(modName + "." + className + " = " + className + ";", classDecl); - } - - this.recordSourceMappingEnd(classDecl); - this.emitComments(classDecl, false); - this.setContainer(temp); - this.thisClassNode = svClassNode; - - this.popDecl(pullDecl); - } - - private emitClassMembers(classDecl: ClassDeclarationSyntax): void { - // First, emit all the functions. - var lastEmittedMember: ISyntaxElement = null; - - for (var i = 0, n = classDecl.classElements.length; i < n; i++) { - var memberDecl = classDecl.classElements[i]; - - if (memberDecl.kind() === SyntaxKind.GetAccessor) { - this.emitSpaceBetweenConstructs(lastEmittedMember, memberDecl); - var getter = memberDecl; - this.emitAccessorMemberDeclaration(getter, getter.propertyName, classDecl.identifier.text(), - !hasModifier(getter.modifiers, PullElementFlags.Static)); - lastEmittedMember = memberDecl; - } - else if (memberDecl.kind() === SyntaxKind.SetAccessor) { - this.emitSpaceBetweenConstructs(lastEmittedMember, memberDecl); - var setter = memberDecl; - this.emitAccessorMemberDeclaration(setter, setter.propertyName, classDecl.identifier.text(), - !hasModifier(setter.modifiers, PullElementFlags.Static)); - lastEmittedMember = memberDecl; - } - else if (memberDecl.kind() === SyntaxKind.MemberFunctionDeclaration) { - - var memberFunction = memberDecl; - - if (memberFunction.block) { - this.emitSpaceBetweenConstructs(lastEmittedMember, memberDecl); - - this.emitClassMemberFunctionDeclaration(classDecl, memberFunction); - lastEmittedMember = memberDecl; - } - } - } - - // Now emit all the statics. - for (var i = 0, n = classDecl.classElements.length; i < n; i++) { - var memberDecl = classDecl.classElements[i]; - - if (memberDecl.kind() === SyntaxKind.MemberVariableDeclaration) { - var varDecl = memberDecl; - - if (hasModifier(varDecl.modifiers, PullElementFlags.Static) && varDecl.variableDeclarator.equalsValueClause) { - this.emitSpaceBetweenConstructs(lastEmittedMember, varDecl); - - this.emitIndent(); - this.recordSourceMappingStart(varDecl); - - this.emitComments(varDecl, true); - var varDeclName = varDecl.variableDeclarator.propertyName.text(); - if (isQuoted(varDeclName) || varDecl.variableDeclarator.propertyName.kind() !== SyntaxKind.IdentifierName) { - this.writeToOutput(classDecl.identifier.text() + "[" + varDeclName + "]"); - } - else { - this.writeToOutput(classDecl.identifier.text() + "." + varDeclName); - } - - this.emit(varDecl.variableDeclarator.equalsValueClause); - - this.recordSourceMappingEnd(varDecl); - this.writeLineToOutput(";"); - - lastEmittedMember = varDecl; - } - } - } - } - - private emitClassMemberFunctionDeclaration(classDecl: ClassDeclarationSyntax, funcDecl: MemberFunctionDeclarationSyntax): void { - this.emitIndent(); - this.recordSourceMappingStart(funcDecl); - this.emitComments(funcDecl, true); - var functionName = funcDecl.propertyName.text(); - - this.writeToOutput(classDecl.identifier.text()); - - if (!hasModifier(funcDecl.modifiers, PullElementFlags.Static)) { - this.writeToOutput(".prototype"); - } - - if (isQuoted(functionName) || funcDecl.propertyName.kind() !== SyntaxKind.IdentifierName) { - this.writeToOutput("[" + functionName + "] = "); - } - else { - this.writeToOutput("." + functionName + " = "); - } - - var pullDecl = this.semanticInfoChain.getDeclForAST(funcDecl); - this.pushDecl(pullDecl); - - this.recordSourceMappingStart(funcDecl); - this.writeToOutput("function "); - - this.emitParameterList(funcDecl.callSignature.parameterList); - - var parameters = funcDecl.callSignature.parameterList.parameters; - this.emitFunctionBodyStatements(funcDecl.propertyName.text(), funcDecl, parameters, funcDecl.block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(funcDecl); - - this.emitComments(funcDecl, false); - - this.recordSourceMappingEnd(funcDecl); - this.popDecl(pullDecl); - - this.writeLineToOutput(";"); - } - - private requiresExtendsBlock(moduleElements: IModuleElementSyntax[]): boolean { - for (var i = 0, n = moduleElements.length; i < n; i++) { - var moduleElement = moduleElements[i]; - - if (moduleElement.kind() === SyntaxKind.ModuleDeclaration) { - var moduleAST = moduleElement; - - if (!hasModifier(moduleAST.modifiers, PullElementFlags.Ambient) && this.requiresExtendsBlock(moduleAST.moduleElements)) { - return true; - } - } - else if (moduleElement.kind() === SyntaxKind.ClassDeclaration) { - var classDeclaration = moduleElement; - - if (!hasModifier(classDeclaration.modifiers, PullElementFlags.Ambient) && ASTHelpers.getExtendsHeritageClause(classDeclaration.heritageClauses) !== null) { - return true; - } - } - } - - return false; - } - - public emitPrologue(sourceUnit: SourceUnitSyntax) { - if (!this.extendsPrologueEmitted) { - if (this.requiresExtendsBlock(sourceUnit.moduleElements)) { - this.extendsPrologueEmitted = true; - this.writeLineToOutput("var __extends = this.__extends || function (d, b) {"); - this.writeLineToOutput(" for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];"); - this.writeLineToOutput(" function __() { this.constructor = d; }"); - this.writeLineToOutput(" __.prototype = b.prototype;"); - this.writeLineToOutput(" d.prototype = new __();"); - this.writeLineToOutput("};"); - } - } - - if (!this.globalThisCapturePrologueEmitted) { - if (this.shouldCaptureThis(sourceUnit)) { - this.globalThisCapturePrologueEmitted = true; - this.writeLineToOutput(this.captureThisStmtString); - } - } - } - - public emitThis() { - if (!this.inWithBlock && this.inArrowFunction) { - this.writeToOutput("_this"); - } - else { - this.writeToOutput("this"); - } - } - - public emitBlockOrStatement(node: ISyntaxElement): void { - if (node.kind() === SyntaxKind.Block) { - this.emit(node); - } - else { - this.writeLineToOutput(""); - this.indenter.increaseIndent(); - this.emitJavascript(node, true); - this.indenter.decreaseIndent(); - } - } - - public emitLiteralExpression(expression: ISyntaxToken): void { - switch (expression.kind()) { - case SyntaxKind.NullKeyword: - this.writeToken(expression); - break; - case SyntaxKind.FalseKeyword: - this.writeToken(expression); - break; - case SyntaxKind.TrueKeyword: - this.writeToken(expression); - break; - default: - throw Errors.abstract(); - } - } - - public emitThisExpression(expression: ISyntaxToken): void { - if (!this.inWithBlock && this.inArrowFunction) { - this.writeToOutputWithSourceMapRecord("_this", expression); - } - else { - this.writeToken(expression); - } - } - - public emitSuperExpression(expression: ISyntaxToken): void { - if (PullHelpers.isInStaticMemberContext(expression, this.semanticInfoChain)) { - this.writeToOutputWithSourceMapRecord("_super", expression); - } - else { - this.writeToOutputWithSourceMapRecord("_super.prototype", expression); - } - } - - private hasTrailingComment(token: ISyntaxToken) { - return token.hasTrailingTrivia() && token.trailingTrivia().hasComment(); - } - - public emitParenthesizedExpression(parenthesizedExpression: ParenthesizedExpressionSyntax): void { - var omitParentheses = false; - - if (parenthesizedExpression.expression.kind() === SyntaxKind.CastExpression && !this.hasTrailingComment(parenthesizedExpression.openParenToken)) { - var castedExpression = (parenthesizedExpression.expression).expression; - - // Make sure we consider all nested cast expressions, e.g.: - // (-A).x; - while (castedExpression.kind() == SyntaxKind.CastExpression) { - castedExpression = (castedExpression).expression; - } - - // We have an expression of the form: (SubExpr) - // Emitting this as (SubExpr) is really not desirable. Just emit the subexpr as is. - // We cannot generalize this rule however, as omitting the parentheses could cause change in the semantics of the generated - // code if the casted expression has a lower precedence than the rest of the expression, e.g.: - // (new A).foo should be emitted as (new A).foo and not new A.foo - // (typeof A).toString() should be emitted as (typeof A).toString() and not typeof A.toString() - // (function foo() { })() should be emitted as an IIF (function foo(){})() and not declaration function foo(){} () - // Parenthesis can be safelly removed from: - // Literals - // MemberAccessExpressions - // ElementAccessExpressions - // InvocationExpression, only if they are not part of an object creation (new) expression; e.g.: - // new (A()) removing the parentheses would result in calling A as a constructor, instead of calling the - // result of the function invocation A() as a constructor - switch (castedExpression.kind()) { - case SyntaxKind.ParenthesizedExpression: - case SyntaxKind.IdentifierName: - case SyntaxKind.NullKeyword: - case SyntaxKind.ThisKeyword: - case SyntaxKind.StringLiteral: - case SyntaxKind.NumericLiteral: - case SyntaxKind.RegularExpressionLiteral: - case SyntaxKind.TrueKeyword: - case SyntaxKind.FalseKeyword: - case SyntaxKind.ArrayLiteralExpression: - case SyntaxKind.ObjectLiteralExpression: - case SyntaxKind.MemberAccessExpression: - case SyntaxKind.ElementAccessExpression: - omitParentheses = true; - break; - - case SyntaxKind.InvocationExpression: - if (parenthesizedExpression.parent.kind() !== SyntaxKind.ObjectCreationExpression) { - omitParentheses = true; - } - - break; - } - } - - if (omitParentheses) { - this.emit(parenthesizedExpression.expression); - } - else { - this.recordSourceMappingStart(parenthesizedExpression); - this.writeToken(parenthesizedExpression.openParenToken); - this.emitCommentsArray(ASTHelpers.convertTokenTrailingComments(parenthesizedExpression.openParenToken, this.text()), /*trailing:*/ false); - this.emit(parenthesizedExpression.expression); - this.writeToken(parenthesizedExpression.closeParenToken); - this.recordSourceMappingEnd(parenthesizedExpression); - } - } - - public emitCastExpression(expression: CastExpressionSyntax): void { - this.emit(expression.expression); - } - - public emitPrefixUnaryExpression(expression: PrefixUnaryExpressionSyntax): void { - var nodeType = expression.kind(); - - this.recordSourceMappingStart(expression); - switch (nodeType) { - case SyntaxKind.LogicalNotExpression: - this.writeToken(expression.operatorToken); - this.emit(expression.operand); - break; - case SyntaxKind.BitwiseNotExpression: - this.writeToken(expression.operatorToken); - this.emit(expression.operand); - break; - case SyntaxKind.NegateExpression: - this.writeToken(expression.operatorToken); - if (expression.operand.kind() === SyntaxKind.NegateExpression || expression.operand.kind() === SyntaxKind.PreDecrementExpression) { - this.writeToOutput(" "); - } - this.emit(expression.operand); - break; - case SyntaxKind.PlusExpression: - this.writeToken(expression.operatorToken); - if (expression.operand.kind() === SyntaxKind.PlusExpression || expression.operand.kind() === SyntaxKind.PreIncrementExpression) { - this.writeToOutput(" "); - } - this.emit(expression.operand); - break; - case SyntaxKind.PreIncrementExpression: - this.writeToOutputWithSourceMapRecord("++", expression.operatorToken); - this.emit(expression.operand); - break; - case SyntaxKind.PreDecrementExpression: - this.writeToOutputWithSourceMapRecord("--", expression.operatorToken); - this.emit(expression.operand); - break; - default: - throw Errors.abstract(); - } - - this.recordSourceMappingEnd(expression); - } - - public emitPostfixUnaryExpression(expression: PostfixUnaryExpressionSyntax): void { - var nodeType = expression.kind(); - - this.recordSourceMappingStart(expression); - switch (nodeType) { - case SyntaxKind.PostIncrementExpression: - this.emit(expression.operand); - this.writeToOutputWithSourceMapRecord("++", expression.operatorToken); - break; - case SyntaxKind.PostDecrementExpression: - this.emit(expression.operand); - this.writeToOutputWithSourceMapRecord("--", expression.operatorToken); - break; - default: - throw Errors.abstract(); - } - - this.recordSourceMappingEnd(expression); - } - - public emitTypeOfExpression(expression: TypeOfExpressionSyntax): void { - this.recordSourceMappingStart(expression); - this.writeToken(expression.typeOfKeyword); - this.writeToOutput(" "); - this.emit(expression.expression); - this.recordSourceMappingEnd(expression); - } - - public emitDeleteExpression(expression: DeleteExpressionSyntax): void { - this.recordSourceMappingStart(expression); - this.writeToken(expression.deleteKeyword); - this.writeToOutput(" "); - this.emit(expression.expression); - this.recordSourceMappingEnd(expression); - } - - public emitVoidExpression(expression: VoidExpressionSyntax): void { - this.recordSourceMappingStart(expression); - this.writeToken(expression.voidKeyword); - this.writeToOutput(" "); - this.emit(expression.expression); - this.recordSourceMappingEnd(expression); - } - - private canEmitDottedNameMemberAccessExpression(expression: MemberAccessExpressionSyntax) { - var memberExpressionNodeType = expression.expression.kind(); - - // If the memberAccess is of Name or another member access, we could potentially emit the symbol using the this memberAccessSymol - if (memberExpressionNodeType === SyntaxKind.IdentifierName || memberExpressionNodeType == SyntaxKind.MemberAccessExpression) { - var memberAccessSymbol = this.getSymbolForEmit(expression).symbol; - var memberAccessExpressionSymbol = this.getSymbolForEmit(expression.expression).symbol; - if (memberAccessSymbol && memberAccessExpressionSymbol // We have symbols resolved for this expression and access - && !this.semanticInfoChain.getAliasSymbolForAST(expression.expression) // The access is not off alias - && (PullHelpers.symbolIsModule(memberAccessExpressionSymbol) || memberAccessExpressionSymbol.kind === PullElementKind.Enum || - memberAccessExpressionSymbol.anyDeclHasFlag(PullElementFlags.InitializedModule | PullElementFlags.Enum))) { // container is module - - // If the memberAccess is in the context of the container, we could use the symbol to emit this expression - var memberAccessSymbolKind = memberAccessSymbol.kind; - if (memberAccessSymbolKind === PullElementKind.Property - || memberAccessSymbolKind === PullElementKind.EnumMember - || (memberAccessSymbol.anyDeclHasFlag(PullElementFlags.Exported) && memberAccessSymbolKind === PullElementKind.Variable && !memberAccessSymbol.anyDeclHasFlag(PullElementFlags.InitializedModule | PullElementFlags.Enum)) - || ((memberAccessSymbol.anyDeclHasFlag(PullElementFlags.Exported) && !this.symbolIsUsedInItsEnclosingContainer(memberAccessSymbol)))) { - - // If the expression is member access, we need to verify it as well - if (memberExpressionNodeType === SyntaxKind.MemberAccessExpression) { - return this.canEmitDottedNameMemberAccessExpression(expression.expression); - } - - return true; - } - } - } - - return false; - } - - // Emit the member access expression using the declPath - private emitDottedNameMemberAccessExpression(expression: MemberAccessExpressionSyntax) { - this.recordSourceMappingStart(expression); - if (expression.expression.kind() === SyntaxKind.MemberAccessExpression) { - // Emit the dotted name access expression - this.emitDottedNameMemberAccessExpressionRecurse(expression.expression); - } - else { // Name - this.emitName(expression.expression, /*addThis*/ true); - } - - this.writeToken(expression.dotToken); - this.emitName(expression.name, /*addThis*/ false); - - this.recordSourceMappingEnd(expression); - } - - // Set the right indices for the recursive member access expression before emitting it using the decl path - private emitDottedNameMemberAccessExpressionRecurse(expression: MemberAccessExpressionSyntax) { - this.emitComments(expression, true); - this.emitDottedNameMemberAccessExpression(expression); - this.emitComments(expression, false); - } - - public emitMemberAccessExpression(expression: MemberAccessExpressionSyntax): void { - if (!this.tryEmitConstant(expression)) { - // If the expression is dotted name of the modules, emit it using decl path so the name could be resolved correctly. - if (this.canEmitDottedNameMemberAccessExpression(expression)) { - this.emitDottedNameMemberAccessExpression(expression); - } - else { - this.recordSourceMappingStart(expression); - this.emit(expression.expression); - this.writeToken(expression.dotToken); - this.emitName(expression.name, false); - this.recordSourceMappingEnd(expression); - } - } - } - - public emitQualifiedName(name: QualifiedNameSyntax): void { - this.recordSourceMappingStart(name); - - this.emit(name.left); - this.writeToken(name.dotToken); - this.emitName(name.right, false); - - this.recordSourceMappingEnd(name); - } - - public emitBinaryExpression(expression: BinaryExpressionSyntax): void { - this.recordSourceMappingStart(expression); - switch (expression.kind()) { - case SyntaxKind.CommaExpression: - this.emit(expression.left); - this.writeToken(expression.operatorToken); - this.writeToOutput(" "); - this.emit(expression.right); - break; - default: - { - this.emit(expression.left); - var binOp = SyntaxFacts.getText(SyntaxFacts.getOperatorTokenFromBinaryExpression(expression.kind())); - this.writeToOutput(" "); - this.writeToOutputWithSourceMapRecord(binOp, expression.operatorToken); - this.writeToOutput(" "); - this.emit(expression.right); - } - } - this.recordSourceMappingEnd(expression); - } - - public emitSimplePropertyAssignment(property: SimplePropertyAssignmentSyntax): void { - this.recordSourceMappingStart(property); - this.emit(property.propertyName); - - this.writeToken(property.colonToken); - this.writeToOutput(" "); - this.emitCommentsArray(ASTHelpers.convertTokenTrailingComments(property.colonToken, this.text()), /*trailing:*/ true, /*noLeadingSpace:*/ true); - - this.emit(property.expression); - this.recordSourceMappingEnd(property); - } - - public emitFunctionPropertyAssignment(funcProp: FunctionPropertyAssignmentSyntax): void { - this.recordSourceMappingStart(funcProp); - - this.emit(funcProp.propertyName); - this.writeToOutput(": "); - - var pullFunctionDecl = this.semanticInfoChain.getDeclForAST(funcProp); - - var savedInArrowFunction = this.inArrowFunction; - this.inArrowFunction = false; - - var temp = this.setContainer(EmitContainer.Function); - var funcName = funcProp.propertyName; - - var pullDecl = this.semanticInfoChain.getDeclForAST(funcProp); - this.pushDecl(pullDecl); - - this.recordSourceMappingStart(funcProp); - this.writeToOutput("function "); - - //this.recordSourceMappingStart(funcProp.propertyName); - //this.writeToOutput(funcProp.propertyName.actualText); - //this.recordSourceMappingEnd(funcProp.propertyName); - - this.emitParameterList(funcProp.callSignature.parameterList); - - this.emitFunctionBodyStatements(funcProp.propertyName.text(), funcProp, - funcProp.callSignature.parameterList.parameters, funcProp.block, /*bodyExpression:*/ null); - - this.recordSourceMappingEnd(funcProp); - - // The extra call is to make sure the caller's funcDecl end is recorded, since caller wont be able to record it - this.recordSourceMappingEnd(funcProp); - - this.emitComments(funcProp, false); - - this.popDecl(pullDecl); - - this.setContainer(temp); - this.inArrowFunction = savedInArrowFunction; - } - - public emitConditionalExpression(expression: ConditionalExpressionSyntax): void { - this.emit(expression.condition); - this.writeToOutput(" "); - this.writeToken(expression.questionToken); - this.writeToOutput(" "); - this.emit(expression.whenTrue); - this.writeToOutput(" "); - this.writeToken(expression.colonToken); - this.writeToOutput(" "); - this.emit(expression.whenFalse); - } - - public emitThrowStatement(statement: ThrowStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.throwKeyword); - this.writeToOutput(" "); - this.emit(statement.expression); - this.writeToOutputWithSourceMapRecord(";", statement.semicolonToken); - this.recordSourceMappingEnd(statement); - } - - public emitExpressionStatement(statement: ExpressionStatementSyntax): void { - var isArrowExpression = statement.expression.kind() === SyntaxKind.SimpleArrowFunctionExpression || statement.expression.kind() === SyntaxKind.ParenthesizedArrowFunctionExpression; - - this.recordSourceMappingStart(statement); - if (isArrowExpression) { - this.writeToOutput("("); - } - - this.emit(statement.expression); - - if (isArrowExpression) { - this.writeToOutput(")"); - } - - this.writeToOutputWithSourceMapRecord(";", statement.semicolonToken); - this.recordSourceMappingEnd(statement); - } - - public emitLabeledStatement(statement: LabeledStatementSyntax): void { - this.writeToOutputWithSourceMapRecord(statement.identifier.text(), statement.identifier); - this.writeToken(statement.colonToken); - this.writeLineToOutput(""); - this.emitJavascript(statement.statement, /*startLine:*/ true); - } - - public emitBlock(block: BlockSyntax): void { - this.recordSourceMappingStart(block); - this.writeLineToOutput(" {"); - this.indenter.increaseIndent(); - if (block.statements) { - this.emitList(block.statements); - } - this.emitCommentsArray(ASTHelpers.convertTokenLeadingComments(block.closeBraceToken, this.text()), /*trailing:*/ false); - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeToken(block.closeBraceToken); - this.recordSourceMappingEnd(block); - } - - public emitBreakStatement(jump: BreakStatementSyntax): void { - this.recordSourceMappingStart(jump); - this.writeToken(jump.breakKeyword); - - if (jump.identifier) { - this.writeToOutput(" "); - this.writeToOutputWithSourceMapRecord(jump.identifier.text(), jump.identifier); - } - - this.writeToOutputWithSourceMapRecord(";", jump.semicolonToken); - this.recordSourceMappingEnd(jump); - } - - public emitContinueStatement(jump: ContinueStatementSyntax): void { - this.recordSourceMappingStart(jump); - this.writeToken(jump.continueKeyword); - - if (jump.identifier) { - this.writeToOutput(" "); - this.writeToOutputWithSourceMapRecord(jump.identifier.text(), jump.identifier); - } - - this.writeToOutputWithSourceMapRecord(";", jump.semicolonToken); - this.recordSourceMappingEnd(jump); - } - - public emitWhileStatement(statement: WhileStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.whileKeyword); - this.writeToOutput(" "); - this.writeToken(statement.openParenToken); - this.emit(statement.condition); - this.writeToken(statement.closeParenToken); - this.emitBlockOrStatement(statement.statement); - this.recordSourceMappingEnd(statement); - } - - public emitDoStatement(statement: DoStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.doKeyword); - this.emitBlockOrStatement(statement.statement); - this.writeToOutput(" "); - this.writeToken(statement.whileKeyword); - this.writeToken(statement.openParenToken); - this.emit(statement.condition); - this.writeToken(statement.closeParenToken); - this.writeToOutputWithSourceMapRecord(";", statement.semicolonToken); - this.recordSourceMappingEnd(statement); - } - - public emitIfStatement(statement: IfStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.ifKeyword); - this.writeToOutput(" "); - this.writeToken(statement.openParenToken); - this.emit(statement.condition); - this.writeToken(statement.closeParenToken); - - this.emitBlockOrStatement(statement.statement); - - if (statement.elseClause) { - if (statement.statement.kind() !== SyntaxKind.Block) { - this.writeLineToOutput(""); - this.emitIndent(); - } - else { - this.writeToOutput(" "); - } - - this.emit(statement.elseClause); - } - this.recordSourceMappingEnd(statement); - } - - public emitElseClause(elseClause: ElseClauseSyntax): void { - this.writeToken(elseClause.elseKeyword); - if (elseClause.statement.kind() === SyntaxKind.IfStatement) { - this.writeToOutput(" "); - this.emit(elseClause.statement); - } - else { - this.emitBlockOrStatement(elseClause.statement); - } - } - - public emitReturnStatement(statement: ReturnStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.returnKeyword); - if (statement.expression) { - this.writeToOutput(" "); - this.emit(statement.expression); - } - - this.writeToOutputWithSourceMapRecord(";", statement.semicolonToken); - this.recordSourceMappingEnd(statement); - } - - public emitForInStatement(statement: ForInStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.forKeyword); - this.writeToOutput(" "); - this.writeToken(statement.openParenToken); - - if (statement.left) { - this.emit(statement.left); - } - else { - this.emit(statement.variableDeclaration); - } - this.writeToOutput(" "); - this.writeToken(statement.inKeyword); - this.writeToOutput(" "); - this.emit(statement.expression); - this.writeToken(statement.closeParenToken); - this.emitBlockOrStatement(statement.statement); - this.recordSourceMappingEnd(statement); - } - - public emitForStatement(statement: ForStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.forKeyword); - this.writeToOutput(" "); - this.writeToken(statement.openParenToken); - - if (statement.variableDeclaration) { - this.emit(statement.variableDeclaration); - } - else if (statement.initializer) { - this.emit(statement.initializer); - } - - this.writeToken(statement.firstSemicolonToken); - this.writeToOutput(" "); - this.emitJavascript(statement.condition, false); - this.writeToken(statement.secondSemicolonToken); - if (statement.incrementor) { - this.writeToOutput(" "); - this.emitJavascript(statement.incrementor, false); - } - this.writeToken(statement.closeParenToken); - this.emitBlockOrStatement(statement.statement); - this.recordSourceMappingEnd(statement); - } - - public emitWithStatement(statement: WithStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.withKeyword); - this.writeToOutput(" "); - this.writeToken(statement.openParenToken); - if (statement.condition) { - this.emit(statement.condition); - } - - this.writeToken(statement.closeParenToken); - var prevInWithBlock = this.inWithBlock; - this.inWithBlock = true; - this.emitBlockOrStatement(statement.statement); - this.inWithBlock = prevInWithBlock; - this.recordSourceMappingEnd(statement); - } - - public emitSwitchStatement(statement: SwitchStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.switchKeyword); - this.writeToOutput(" "); - this.writeToken(statement.openParenToken); - this.emit(statement.expression); - this.writeToken(statement.closeParenToken); - this.writeLineToOutput(" {"); - this.indenter.increaseIndent(); - this.emitList(statement.switchClauses, /*useNewLineSeparator:*/ false); - this.indenter.decreaseIndent(); - this.emitIndent(); - this.writeToken(statement.closeBraceToken); - this.recordSourceMappingEnd(statement); - } - - public emitCaseSwitchClause(clause: CaseSwitchClauseSyntax): void { - this.recordSourceMappingStart(clause); - this.writeToken(clause.caseKeyword); - this.writeToOutput(" "); - this.emit(clause.expression); - this.writeToken(clause.colonToken); - - this.emitSwitchClauseBody(clause.colonToken, clause.statements); - this.recordSourceMappingEnd(clause); - } - - private emitSwitchClauseBody(colonToken: ISyntaxToken, body: IStatementSyntax[]): void { - var text = this.text(); - if (body.length === 1 && childAt(body, 0).kind() === SyntaxKind.Block) { - // The case statement was written with curly braces, so emit it with the appropriate formatting - this.emit(childAt(body, 0)); - this.writeLineToOutput(""); - } - else if (body.length === 1 && this.isOnSameLine(end(colonToken, text), start(body[0], text))) { - this.writeToOutput(" "); - this.emit(childAt(body, 0)); - this.writeLineToOutput(""); - } - else { - // No curly braces. Format in the expected way - this.writeLineToOutput(""); - this.indenter.increaseIndent(); - this.emit(body); - this.indenter.decreaseIndent(); - } - } - - public emitDefaultSwitchClause(clause: DefaultSwitchClauseSyntax): void { - this.recordSourceMappingStart(clause); - this.writeToken(clause.defaultKeyword); - this.writeToken(clause.colonToken); - - this.emitSwitchClauseBody(clause.colonToken, clause.statements); - this.recordSourceMappingEnd(clause); - } - - public emitTryStatement(statement: TryStatementSyntax): void { - this.recordSourceMappingStart(statement); - this.writeToken(statement.tryKeyword); - this.writeToOutput(" "); - this.emit(statement.block); - this.emitJavascript(statement.catchClause, false); - - if (statement.finallyClause) { - this.emit(statement.finallyClause); - } - this.recordSourceMappingEnd(statement); - } - - public emitCatchClause(clause: CatchClauseSyntax): void { - this.writeToOutput(" "); - this.recordSourceMappingStart(clause); - this.writeToken(clause.catchKeyword); - this.writeToOutput(" "); - this.writeToken(clause.openParenToken); - this.emit(clause.identifier); - this.writeToken(clause.closeParenToken); - this.emit(clause.block); - this.recordSourceMappingEnd(clause); - } - - public emitFinallyClause(clause: FinallyClauseSyntax): void { - this.writeToOutput(" "); - this.writeToken(clause.finallyKeyword); - this.emit(clause.block); - } - - public emitDebuggerStatement(statement: DebuggerStatementSyntax): void { - this.writeToken(statement.debuggerKeyword); - this.writeToOutputWithSourceMapRecord(";", statement.semicolonToken); - } - - public emitNumericLiteral(literal: ISyntaxToken): void { - this.writeToOutputWithSourceMapRecord(literal.text(), literal); - } - - public emitRegularExpressionLiteral(literal: ISyntaxToken): void { - this.writeToOutputWithSourceMapRecord(literal.text(), literal); - } - - public emitStringLiteral(literal: ISyntaxToken): void { - this.writeToOutputWithSourceMapRecord(literal.text(), literal); - } - - public emitEqualsValueClause(clause: EqualsValueClauseSyntax): void { - this.writeToOutput(" "); - this.writeToken(clause.equalsToken); - this.writeToOutput(" "); - this.emitCommentsArray(ASTHelpers.convertTokenTrailingComments(clause.equalsToken, this.text()), /*trailing:*/ true, /*noLeadingSpace:*/ true); - - this.emit(clause.value); - } - - private emitParameter(parameter: ParameterSyntax): void { - this.writeToOutputWithSourceMapRecord(parameter.identifier.text(), parameter); - } - - public emitConstructorDeclaration(declaration: ConstructorDeclarationSyntax): void { - if (declaration.block) { - this.emitConstructor(declaration); - } - else { - this.emitComments(declaration, /*pre:*/ true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - } - - public shouldEmitFunctionDeclaration(declaration: FunctionDeclarationSyntax): boolean { - return ASTHelpers.preComments(declaration, this.text()) !== null || (!hasModifier(declaration.modifiers, PullElementFlags.Ambient) && declaration.block !== null); - } - - public emitFunctionDeclaration(declaration: FunctionDeclarationSyntax): void { - if (!hasModifier(declaration.modifiers, PullElementFlags.Ambient) && declaration.block !== null) { - this.emitFunction(declaration); - } - else { - this.emitComments(declaration, /*pre:*/ true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - } - - private emitSourceUnit(sourceUnit: SourceUnitSyntax): void { - if (!this.document.isDeclareFile()) { - var pullDecl = this.semanticInfoChain.getDeclForAST(sourceUnit); - this.pushDecl(pullDecl); - this.emitScriptElements(sourceUnit); - this.popDecl(pullDecl); - - this.emitCommentsArray(ASTHelpers.convertTokenLeadingComments(sourceUnit.endOfFileToken, this.text()), /*trailing:*/ false); - } - } - - public shouldEmitEnumDeclaration(declaration: EnumDeclarationSyntax): boolean { - return ASTHelpers.preComments(declaration, this.text()) !== null || !ASTHelpers.enumIsElided(declaration); - } - - public emitEnumDeclaration(declaration: EnumDeclarationSyntax): void { - if (!ASTHelpers.enumIsElided(declaration)) { - this.emitComments(declaration, true); - this.emitEnum(declaration); - this.emitComments(declaration, false); - } - else { - this.emitComments(declaration, true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - } - - public shouldEmitModuleDeclaration(declaration: ModuleDeclarationSyntax): boolean { - return ASTHelpers.preComments(declaration, this.text()) !== null || !ASTHelpers.moduleIsElided(declaration); - } - - private emitModuleDeclaration(declaration: ModuleDeclarationSyntax): void { - if (!ASTHelpers.moduleIsElided(declaration)) { - this.emitModuleDeclarationWorker(declaration); - } - else { - this.emitComments(declaration, true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - } - - public shouldEmitClassDeclaration(declaration: ClassDeclarationSyntax): boolean { - return ASTHelpers.preComments(declaration, this.text()) !== null || !hasModifier(declaration.modifiers, PullElementFlags.Ambient); - } - - public emitClassDeclaration(declaration: ClassDeclarationSyntax): void { - if (!hasModifier(declaration.modifiers, PullElementFlags.Ambient)) { - this.emitClass(declaration); - } - else { - this.emitComments(declaration, /*pre:*/ true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - } - - public shouldEmitInterfaceDeclaration(declaration: InterfaceDeclarationSyntax): boolean { - return ASTHelpers.preComments(declaration, this.text()) !== null; - } - - public emitInterfaceDeclaration(declaration: InterfaceDeclarationSyntax): void { - this.emitComments(declaration, /*pre:*/ true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - - private firstVariableDeclarator(statement: VariableStatementSyntax): VariableDeclaratorSyntax { - return statement.variableDeclaration.variableDeclarators[0]; - } - - private isNotAmbientOrHasInitializer(variableStatement: VariableStatementSyntax): boolean { - return !hasModifier(variableStatement.modifiers, PullElementFlags.Ambient) || this.firstVariableDeclarator(variableStatement).equalsValueClause !== null; - } - - public shouldEmitVariableStatement(statement: VariableStatementSyntax): boolean { - return ASTHelpers.preComments(statement, this.text()) !== null || this.isNotAmbientOrHasInitializer(statement); - } - - public emitVariableStatement(statement: VariableStatementSyntax): void { - if (this.isNotAmbientOrHasInitializer(statement)) { - this.emitComments(statement, true); - this.emit(statement.variableDeclaration); - this.writeToOutputWithSourceMapRecord(";", statement.semicolonToken); - this.emitComments(statement, false); - } - else { - this.emitComments(statement, /*pre:*/ true, /*onlyPinnedOrTripleSlashComments:*/ true); - } - } - - public emitGenericType(type: GenericTypeSyntax): void { - this.emit(type.name); - } - - private shouldEmit(ast: ISyntaxElement): boolean { - if (!ast) { - return false; - } - - switch (ast.kind()) { - case SyntaxKind.ImportDeclaration: - return this.shouldEmitImportDeclaration(ast); - case SyntaxKind.ClassDeclaration: - return this.shouldEmitClassDeclaration(ast); - case SyntaxKind.InterfaceDeclaration: - return this.shouldEmitInterfaceDeclaration(ast); - case SyntaxKind.FunctionDeclaration: - return this.shouldEmitFunctionDeclaration(ast); - case SyntaxKind.ModuleDeclaration: - return this.shouldEmitModuleDeclaration(ast); - case SyntaxKind.VariableStatement: - return this.shouldEmitVariableStatement(ast); - case SyntaxKind.OmittedExpression: - return false; - case SyntaxKind.EnumDeclaration: - return this.shouldEmitEnumDeclaration(ast); - } - - return true; - } - - private emit(ast: ISyntaxElement): void { - if (!ast) { - return; - } - - switch (ast.kind()) { - case SyntaxKind.SeparatedList: - return this.emitSeparatedList(ast); - case SyntaxKind.List: - return this.emitList(ast); - case SyntaxKind.SourceUnit: - return this.emitSourceUnit(ast); - case SyntaxKind.ImportDeclaration: - return this.emitImportDeclaration(ast); - case SyntaxKind.ExportAssignment: - return this.setExportAssignment(ast); - case SyntaxKind.ClassDeclaration: - return this.emitClassDeclaration(ast); - case SyntaxKind.InterfaceDeclaration: - return this.emitInterfaceDeclaration(ast); - case SyntaxKind.IdentifierName: - return this.emitName(ast, true); - case SyntaxKind.VariableDeclarator: - return this.emitVariableDeclarator(ast); - case SyntaxKind.SimpleArrowFunctionExpression: - return this.emitSimpleArrowFunctionExpression(ast); - case SyntaxKind.ParenthesizedArrowFunctionExpression: - return this.emitParenthesizedArrowFunctionExpression(ast); - case SyntaxKind.FunctionDeclaration: - return this.emitFunctionDeclaration(ast); - case SyntaxKind.ModuleDeclaration: - return this.emitModuleDeclaration(ast); - case SyntaxKind.VariableDeclaration: - return this.emitVariableDeclaration(ast); - case SyntaxKind.GenericType: - return this.emitGenericType(ast); - case SyntaxKind.ConstructorDeclaration: - return this.emitConstructorDeclaration(ast); - case SyntaxKind.EnumDeclaration: - return this.emitEnumDeclaration(ast); - case SyntaxKind.EnumElement: - return this.emitEnumElement(ast); - case SyntaxKind.FunctionExpression: - return this.emitFunctionExpression(ast); - case SyntaxKind.VariableStatement: - return this.emitVariableStatement(ast); - } - - this.emitComments(ast, true); - this.emitWorker(ast); - this.emitComments(ast, false); - } - - private emitWorker(ast: ISyntaxElement): void { - if (!ast) { - return; - } - - switch (ast.kind()) { - case SyntaxKind.NumericLiteral: - return this.emitNumericLiteral(ast); - case SyntaxKind.RegularExpressionLiteral: - return this.emitRegularExpressionLiteral(ast); - case SyntaxKind.StringLiteral: - return this.emitStringLiteral(ast); - case SyntaxKind.FalseKeyword: - case SyntaxKind.NullKeyword: - case SyntaxKind.TrueKeyword: - return this.emitLiteralExpression(ast); - case SyntaxKind.ThisKeyword: - return this.emitThisExpression(ast); - case SyntaxKind.SuperKeyword: - return this.emitSuperExpression(ast); - case SyntaxKind.ParenthesizedExpression: - return this.emitParenthesizedExpression(ast); - case SyntaxKind.ArrayLiteralExpression: - return this.emitArrayLiteralExpression(ast); - case SyntaxKind.PostDecrementExpression: - case SyntaxKind.PostIncrementExpression: - return this.emitPostfixUnaryExpression(ast); - case SyntaxKind.LogicalNotExpression: - case SyntaxKind.BitwiseNotExpression: - case SyntaxKind.NegateExpression: - case SyntaxKind.PlusExpression: - case SyntaxKind.PreIncrementExpression: - case SyntaxKind.PreDecrementExpression: - return this.emitPrefixUnaryExpression(ast); - case SyntaxKind.InvocationExpression: - return this.emitInvocationExpression(ast); - case SyntaxKind.ElementAccessExpression: - return this.emitElementAccessExpression(ast); - case SyntaxKind.MemberAccessExpression: - return this.emitMemberAccessExpression(ast); - case SyntaxKind.QualifiedName: - return this.emitQualifiedName(ast); - case SyntaxKind.CommaExpression: - case SyntaxKind.AssignmentExpression: - case SyntaxKind.AddAssignmentExpression: - case SyntaxKind.SubtractAssignmentExpression: - case SyntaxKind.MultiplyAssignmentExpression: - case SyntaxKind.DivideAssignmentExpression: - case SyntaxKind.ModuloAssignmentExpression: - case SyntaxKind.AndAssignmentExpression: - case SyntaxKind.ExclusiveOrAssignmentExpression: - case SyntaxKind.OrAssignmentExpression: - case SyntaxKind.LeftShiftAssignmentExpression: - case SyntaxKind.SignedRightShiftAssignmentExpression: - case SyntaxKind.UnsignedRightShiftAssignmentExpression: - case SyntaxKind.LogicalOrExpression: - case SyntaxKind.LogicalAndExpression: - case SyntaxKind.BitwiseOrExpression: - case SyntaxKind.BitwiseExclusiveOrExpression: - case SyntaxKind.BitwiseAndExpression: - case SyntaxKind.EqualsWithTypeConversionExpression: - case SyntaxKind.NotEqualsWithTypeConversionExpression: - case SyntaxKind.EqualsExpression: - case SyntaxKind.NotEqualsExpression: - case SyntaxKind.LessThanExpression: - case SyntaxKind.GreaterThanExpression: - case SyntaxKind.LessThanOrEqualExpression: - case SyntaxKind.GreaterThanOrEqualExpression: - case SyntaxKind.InstanceOfExpression: - case SyntaxKind.InExpression: - case SyntaxKind.LeftShiftExpression: - case SyntaxKind.SignedRightShiftExpression: - case SyntaxKind.UnsignedRightShiftExpression: - case SyntaxKind.MultiplyExpression: - case SyntaxKind.DivideExpression: - case SyntaxKind.ModuloExpression: - case SyntaxKind.AddExpression: - case SyntaxKind.SubtractExpression: - return this.emitBinaryExpression(ast); - case SyntaxKind.ConditionalExpression: - return this.emitConditionalExpression(ast); - case SyntaxKind.EqualsValueClause: - return this.emitEqualsValueClause(ast); - case SyntaxKind.Parameter: - return this.emitParameter(ast); - case SyntaxKind.Block: - return this.emitBlock(ast); - case SyntaxKind.ElseClause: - return this.emitElseClause(ast); - case SyntaxKind.IfStatement: - return this.emitIfStatement(ast); - case SyntaxKind.ExpressionStatement: - return this.emitExpressionStatement(ast); - case SyntaxKind.GetAccessor: - return this.emitGetAccessor(ast); - case SyntaxKind.SetAccessor: - return this.emitSetAccessor(ast); - case SyntaxKind.ThrowStatement: - return this.emitThrowStatement(ast); - case SyntaxKind.ReturnStatement: - return this.emitReturnStatement(ast); - case SyntaxKind.ObjectCreationExpression: - return this.emitObjectCreationExpression(ast); - case SyntaxKind.SwitchStatement: - return this.emitSwitchStatement(ast); - case SyntaxKind.CaseSwitchClause: - return this.emitCaseSwitchClause(ast); - case SyntaxKind.DefaultSwitchClause: - return this.emitDefaultSwitchClause(ast); - case SyntaxKind.BreakStatement: - return this.emitBreakStatement(ast); - case SyntaxKind.ContinueStatement: - return this.emitContinueStatement(ast); - case SyntaxKind.ForStatement: - return this.emitForStatement(ast); - case SyntaxKind.ForInStatement: - return this.emitForInStatement(ast); - case SyntaxKind.WhileStatement: - return this.emitWhileStatement(ast); - case SyntaxKind.WithStatement: - return this.emitWithStatement(ast); - case SyntaxKind.CastExpression: - return this.emitCastExpression(ast); - case SyntaxKind.ObjectLiteralExpression: - return this.emitObjectLiteralExpression(ast); - case SyntaxKind.SimplePropertyAssignment: - return this.emitSimplePropertyAssignment(ast); - case SyntaxKind.FunctionPropertyAssignment: - return this.emitFunctionPropertyAssignment(ast); - case SyntaxKind.EmptyStatement: - return this.writeToken((ast).semicolonToken); - case SyntaxKind.TryStatement: - return this.emitTryStatement(ast); - case SyntaxKind.CatchClause: - return this.emitCatchClause(ast); - case SyntaxKind.FinallyClause: - return this.emitFinallyClause(ast); - case SyntaxKind.LabeledStatement: - return this.emitLabeledStatement(ast); - case SyntaxKind.DoStatement: - return this.emitDoStatement(ast); - case SyntaxKind.TypeOfExpression: - return this.emitTypeOfExpression(ast); - case SyntaxKind.DeleteExpression: - return this.emitDeleteExpression(ast); - case SyntaxKind.VoidExpression: - return this.emitVoidExpression(ast); - case SyntaxKind.DebuggerStatement: - return this.emitDebuggerStatement(ast); - } - } - } - - export function getLastConstructor(classDecl: ClassDeclarationSyntax): ConstructorDeclarationSyntax { - for (var i = classDecl.classElements.length - 1; i >= 0; i--) { - var child = classDecl.classElements[i]; - - if (child.kind() === SyntaxKind.ConstructorDeclaration) { - return child; - } - } - - return null; - } - - export function getTrimmedTextLines(comment: Comment): string[] { - if (comment.kind() === SyntaxKind.MultiLineCommentTrivia) { - return comment.fullText().split("\n").map(s => s.trim()); - } - else { - return [comment.fullText().trim()]; - } - } -} \ No newline at end of file