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"use strict";
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var compiler_1 = require("@angular/compiler");
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var ts = require("typescript");
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var METHOD_THIS_NAME = 'this';
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var CATCH_ERROR_NAME = 'error';
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var CATCH_STACK_NAME = 'stack';
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var TypeScriptNodeEmitter = (function () {
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function TypeScriptNodeEmitter() {
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}
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TypeScriptNodeEmitter.prototype.updateSourceFile = function (sourceFile, stmts, preamble) {
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var converter = new _NodeEmitterVisitor();
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var statements = stmts.map(function (stmt) { return stmt.visitStatement(converter, null); }).filter(function (stmt) { return stmt != null; });
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var newSourceFile = ts.updateSourceFileNode(sourceFile, converter.getReexports().concat(converter.getImports(), statements));
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if (preamble) {
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if (preamble.startsWith('/*') && preamble.endsWith('*/')) {
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preamble = preamble.substr(2, preamble.length - 4);
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}
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if (!statements.length) {
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statements.push(ts.createEmptyStatement());
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}
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statements[0] = ts.setSyntheticLeadingComments(statements[0], [{ kind: ts.SyntaxKind.MultiLineCommentTrivia, text: preamble, pos: -1, end: -1 }]);
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}
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return [newSourceFile, converter.getNodeMap()];
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};
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return TypeScriptNodeEmitter;
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}());
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exports.TypeScriptNodeEmitter = TypeScriptNodeEmitter;
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function createLiteral(value) {
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if (value === null) {
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return ts.createNull();
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}
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else if (value === undefined) {
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return ts.createIdentifier('undefined');
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}
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else {
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return ts.createLiteral(value);
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}
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}
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/**
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* Visits an output ast and produces the corresponding TypeScript synthetic nodes.
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*/
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var _NodeEmitterVisitor = (function () {
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function _NodeEmitterVisitor() {
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this._nodeMap = new Map();
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this._importsWithPrefixes = new Map();
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this._reexports = new Map();
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}
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_NodeEmitterVisitor.prototype.getReexports = function () {
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return Array.from(this._reexports.entries())
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.map(function (_a) {
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var exportedFilePath = _a[0], reexports = _a[1];
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return ts.createExportDeclaration(
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/* decorators */ undefined,
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/* modifiers */ undefined, ts.createNamedExports(reexports.map(function (_a) {
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var name = _a.name, as = _a.as;
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return ts.createExportSpecifier(name, as);
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})),
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/* moduleSpecifier */ createLiteral(exportedFilePath));
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});
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};
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_NodeEmitterVisitor.prototype.getImports = function () {
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return Array.from(this._importsWithPrefixes.entries())
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.map(function (_a) {
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var namespace = _a[0], prefix = _a[1];
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return ts.createImportDeclaration(
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/* decorators */ undefined,
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/* modifiers */ undefined,
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/* importClause */ ts.createImportClause(
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/* name */ undefined, ts.createNamespaceImport(ts.createIdentifier(prefix))),
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/* moduleSpecifier */ createLiteral(namespace));
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});
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};
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_NodeEmitterVisitor.prototype.getNodeMap = function () { return this._nodeMap; };
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_NodeEmitterVisitor.prototype.record = function (ngNode, tsNode) {
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var _this = this;
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if (tsNode && !this._nodeMap.has(tsNode)) {
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this._nodeMap.set(tsNode, ngNode);
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ts.forEachChild(tsNode, function (child) { return _this.record(ngNode, tsNode); });
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}
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return tsNode;
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};
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_NodeEmitterVisitor.prototype.getModifiers = function (stmt) {
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var modifiers = [];
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if (stmt.hasModifier(compiler_1.StmtModifier.Exported)) {
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modifiers.push(ts.createToken(ts.SyntaxKind.ExportKeyword));
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}
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return modifiers;
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};
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// StatementVisitor
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_NodeEmitterVisitor.prototype.visitDeclareVarStmt = function (stmt) {
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if (stmt.hasModifier(compiler_1.StmtModifier.Exported) && stmt.value instanceof compiler_1.ExternalExpr &&
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!stmt.type) {
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// check for a reexport
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var _a = stmt.value.value, name_1 = _a.name, moduleName = _a.moduleName;
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if (moduleName) {
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var reexports = this._reexports.get(moduleName);
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if (!reexports) {
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reexports = [];
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this._reexports.set(moduleName, reexports);
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}
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reexports.push({ name: name_1, as: stmt.name });
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return null;
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}
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}
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return this.record(stmt, ts.createVariableStatement(this.getModifiers(stmt), ts.createVariableDeclarationList([ts.createVariableDeclaration(ts.createIdentifier(stmt.name),
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/* type */ undefined, (stmt.value && stmt.value.visitExpression(this, null)) || undefined)])));
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};
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_NodeEmitterVisitor.prototype.visitDeclareFunctionStmt = function (stmt, context) {
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return this.record(stmt, ts.createFunctionDeclaration(
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/* decorators */ undefined, this.getModifiers(stmt),
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/* astrictToken */ undefined, stmt.name, /* typeParameters */ undefined, stmt.params.map(function (p) { return ts.createParameter(
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/* decorators */ undefined, /* modifiers */ undefined,
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/* dotDotDotToken */ undefined, p.name); }),
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/* type */ undefined, this._visitStatements(stmt.statements)));
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};
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_NodeEmitterVisitor.prototype.visitExpressionStmt = function (stmt) {
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return this.record(stmt, ts.createStatement(stmt.expr.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitReturnStmt = function (stmt) {
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return this.record(stmt, ts.createReturn(stmt.value ? stmt.value.visitExpression(this, null) : undefined));
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};
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_NodeEmitterVisitor.prototype.visitDeclareClassStmt = function (stmt) {
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var _this = this;
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var modifiers = this.getModifiers(stmt);
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var fields = stmt.fields.map(function (field) { return ts.createProperty(
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/* decorators */ undefined, /* modifiers */ undefined, field.name,
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/* questionToken */ undefined,
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/* type */ undefined, ts.createNull()); });
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var getters = stmt.getters.map(function (getter) { return ts.createGetAccessor(
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/* decorators */ undefined, /* modifiers */ undefined, getter.name, /* parameters */ [],
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/* type */ undefined, _this._visitStatements(getter.body)); });
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var constructor = (stmt.constructorMethod && [ts.createConstructor(
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/* decorators */ undefined,
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/* modifiers */ undefined,
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/* parameters */ stmt.constructorMethod.params.map(function (p) { return ts.createParameter(
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/* decorators */ undefined,
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/* modifiers */ undefined,
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/* dotDotDotToken */ undefined, p.name); }), this._visitStatements(stmt.constructorMethod.body))]) ||
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[];
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// TODO {chuckj}: Determine what should be done for a method with a null name.
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var methods = stmt.methods.filter(function (method) { return method.name; })
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.map(function (method) { return ts.createMethodDeclaration(
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/* decorators */ undefined, /* modifiers */ undefined,
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/* astriskToken */ undefined, method.name /* guarded by filter */,
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/* questionToken */ undefined, /* typeParameters */ undefined, method.params.map(function (p) { return ts.createParameter(
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/* decorators */ undefined, /* modifiers */ undefined,
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/* dotDotDotToken */ undefined, p.name); }),
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/* type */ undefined, _this._visitStatements(method.body)); });
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return this.record(stmt, ts.createClassDeclaration(
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/* decorators */ undefined, modifiers, stmt.name, /* typeParameters*/ undefined, stmt.parent && [ts.createHeritageClause(ts.SyntaxKind.ExtendsKeyword, [stmt.parent.visitExpression(this, null)])] ||
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[], fields.concat(getters, constructor, methods)));
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};
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_NodeEmitterVisitor.prototype.visitIfStmt = function (stmt) {
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return this.record(stmt, ts.createIf(stmt.condition.visitExpression(this, null), this._visitStatements(stmt.trueCase), stmt.falseCase && stmt.falseCase.length && this._visitStatements(stmt.falseCase) ||
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undefined));
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};
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_NodeEmitterVisitor.prototype.visitTryCatchStmt = function (stmt) {
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return this.record(stmt, ts.createTry(this._visitStatements(stmt.bodyStmts), ts.createCatchClause(CATCH_ERROR_NAME, this._visitStatementsPrefix([ts.createVariableStatement(
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/* modifiers */ undefined, [ts.createVariableDeclaration(CATCH_STACK_NAME, /* type */ undefined, ts.createPropertyAccess(ts.createIdentifier(CATCH_ERROR_NAME), ts.createIdentifier(CATCH_STACK_NAME)))])], stmt.catchStmts)),
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/* finallyBlock */ undefined));
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};
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_NodeEmitterVisitor.prototype.visitThrowStmt = function (stmt) {
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return this.record(stmt, ts.createThrow(stmt.error.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitCommentStmt = function (stmt) { return null; };
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// ExpressionVisitor
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_NodeEmitterVisitor.prototype.visitReadVarExpr = function (expr) {
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switch (expr.builtin) {
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case compiler_1.BuiltinVar.This:
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return this.record(expr, ts.createIdentifier(METHOD_THIS_NAME));
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case compiler_1.BuiltinVar.CatchError:
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return this.record(expr, ts.createIdentifier(CATCH_ERROR_NAME));
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case compiler_1.BuiltinVar.CatchStack:
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return this.record(expr, ts.createIdentifier(CATCH_STACK_NAME));
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case compiler_1.BuiltinVar.Super:
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return this.record(expr, ts.createSuper());
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}
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if (expr.name) {
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return this.record(expr, ts.createIdentifier(expr.name));
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}
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throw Error("Unexpected ReadVarExpr form");
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};
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_NodeEmitterVisitor.prototype.visitWriteVarExpr = function (expr) {
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return this.record(expr, ts.createAssignment(ts.createIdentifier(expr.name), expr.value.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitWriteKeyExpr = function (expr) {
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return this.record(expr, ts.createAssignment(ts.createElementAccess(expr.receiver.visitExpression(this, null), expr.index.visitExpression(this, null)), expr.value.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitWritePropExpr = function (expr) {
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return this.record(expr, ts.createAssignment(ts.createPropertyAccess(expr.receiver.visitExpression(this, null), expr.name), expr.value.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitInvokeMethodExpr = function (expr) {
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var _this = this;
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var methodName = getMethodName(expr);
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return this.record(expr, ts.createCall(ts.createPropertyAccess(expr.receiver.visitExpression(this, null), methodName),
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/* typeArguments */ undefined, expr.args.map(function (arg) { return arg.visitExpression(_this, null); })));
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};
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_NodeEmitterVisitor.prototype.visitInvokeFunctionExpr = function (expr) {
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var _this = this;
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return this.record(expr, ts.createCall(expr.fn.visitExpression(this, null), /* typeArguments */ undefined, expr.args.map(function (arg) { return arg.visitExpression(_this, null); })));
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};
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_NodeEmitterVisitor.prototype.visitInstantiateExpr = function (expr) {
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var _this = this;
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return this.record(expr, ts.createNew(expr.classExpr.visitExpression(this, null), /* typeArguments */ undefined, expr.args.map(function (arg) { return arg.visitExpression(_this, null); })));
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};
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_NodeEmitterVisitor.prototype.visitLiteralExpr = function (expr) { return this.record(expr, createLiteral(expr.value)); };
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_NodeEmitterVisitor.prototype.visitExternalExpr = function (expr) {
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return this.record(expr, this._visitIdentifier(expr.value));
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};
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_NodeEmitterVisitor.prototype.visitConditionalExpr = function (expr) {
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// TODO {chuckj}: Review use of ! on flaseCase. Should it be non-nullable?
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return this.record(expr, ts.createConditional(expr.condition.visitExpression(this, null), expr.trueCase.visitExpression(this, null), expr.falseCase.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitNotExpr = function (expr) {
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return this.record(expr, ts.createPrefix(ts.SyntaxKind.ExclamationToken, expr.condition.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitAssertNotNullExpr = function (expr) {
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return expr.condition.visitExpression(this, null);
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};
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_NodeEmitterVisitor.prototype.visitCastExpr = function (expr) {
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return expr.value.visitExpression(this, null);
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};
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_NodeEmitterVisitor.prototype.visitFunctionExpr = function (expr) {
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return this.record(expr, ts.createFunctionExpression(
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/* modifiers */ undefined, /* astriskToken */ undefined, /* name */ undefined,
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/* typeParameters */ undefined, expr.params.map(function (p) { return ts.createParameter(
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/* decorators */ undefined, /* modifiers */ undefined,
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/* dotDotDotToken */ undefined, p.name); }),
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/* type */ undefined, this._visitStatements(expr.statements)));
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};
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_NodeEmitterVisitor.prototype.visitBinaryOperatorExpr = function (expr) {
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var binaryOperator;
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switch (expr.operator) {
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case compiler_1.BinaryOperator.And:
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binaryOperator = ts.SyntaxKind.AmpersandAmpersandToken;
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break;
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case compiler_1.BinaryOperator.Bigger:
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binaryOperator = ts.SyntaxKind.GreaterThanToken;
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break;
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case compiler_1.BinaryOperator.BiggerEquals:
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binaryOperator = ts.SyntaxKind.GreaterThanEqualsToken;
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break;
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case compiler_1.BinaryOperator.Divide:
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binaryOperator = ts.SyntaxKind.SlashToken;
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break;
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case compiler_1.BinaryOperator.Equals:
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binaryOperator = ts.SyntaxKind.EqualsEqualsToken;
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break;
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case compiler_1.BinaryOperator.Identical:
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binaryOperator = ts.SyntaxKind.EqualsEqualsEqualsToken;
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break;
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case compiler_1.BinaryOperator.Lower:
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binaryOperator = ts.SyntaxKind.LessThanToken;
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break;
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case compiler_1.BinaryOperator.LowerEquals:
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binaryOperator = ts.SyntaxKind.LessThanEqualsToken;
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break;
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case compiler_1.BinaryOperator.Minus:
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binaryOperator = ts.SyntaxKind.MinusToken;
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break;
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case compiler_1.BinaryOperator.Modulo:
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binaryOperator = ts.SyntaxKind.PercentToken;
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break;
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case compiler_1.BinaryOperator.Multiply:
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binaryOperator = ts.SyntaxKind.AsteriskToken;
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break;
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case compiler_1.BinaryOperator.NotEquals:
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binaryOperator = ts.SyntaxKind.ExclamationEqualsToken;
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break;
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case compiler_1.BinaryOperator.NotIdentical:
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binaryOperator = ts.SyntaxKind.ExclamationEqualsEqualsToken;
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break;
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case compiler_1.BinaryOperator.Or:
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binaryOperator = ts.SyntaxKind.BarBarToken;
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break;
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case compiler_1.BinaryOperator.Plus:
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binaryOperator = ts.SyntaxKind.PlusToken;
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break;
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default:
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throw new Error("Unknown operator: " + expr.operator);
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}
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return this.record(expr, ts.createBinary(expr.lhs.visitExpression(this, null), binaryOperator, expr.rhs.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitReadPropExpr = function (expr) {
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return this.record(expr, ts.createPropertyAccess(expr.receiver.visitExpression(this, null), expr.name));
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};
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_NodeEmitterVisitor.prototype.visitReadKeyExpr = function (expr) {
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return this.record(expr, ts.createElementAccess(expr.receiver.visitExpression(this, null), expr.index.visitExpression(this, null)));
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};
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_NodeEmitterVisitor.prototype.visitLiteralArrayExpr = function (expr) {
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var _this = this;
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return this.record(expr, ts.createArrayLiteral(expr.entries.map(function (entry) { return entry.visitExpression(_this, null); })));
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};
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_NodeEmitterVisitor.prototype.visitLiteralMapExpr = function (expr) {
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var _this = this;
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return this.record(expr, ts.createObjectLiteral(expr.entries.map(function (entry) { return ts.createPropertyAssignment(entry.quoted ? ts.createLiteral(entry.key) : entry.key, entry.value.visitExpression(_this, null)); })));
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};
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306
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_NodeEmitterVisitor.prototype.visitCommaExpr = function (expr) {
|
|
307
|
var _this = this;
|
|
308
|
return this.record(expr, expr.parts.map(function (e) { return e.visitExpression(_this, null); })
|
|
309
|
.reduce(function (left, right) {
|
|
310
|
return left ? ts.createBinary(left, ts.SyntaxKind.CommaToken, right) : right;
|
|
311
|
}, null));
|
|
312
|
};
|
|
313
|
_NodeEmitterVisitor.prototype._visitStatements = function (statements) {
|
|
314
|
return this._visitStatementsPrefix([], statements);
|
|
315
|
};
|
|
316
|
_NodeEmitterVisitor.prototype._visitStatementsPrefix = function (prefix, statements) {
|
|
317
|
var _this = this;
|
|
318
|
return ts.createBlock(prefix.concat(statements.map(function (stmt) { return stmt.visitStatement(_this, null); }).filter(function (f) { return f != null; })));
|
|
319
|
};
|
|
320
|
_NodeEmitterVisitor.prototype._visitIdentifier = function (value) {
|
|
321
|
var name = value.name, moduleName = value.moduleName;
|
|
322
|
var prefixIdent = null;
|
|
323
|
if (moduleName) {
|
|
324
|
var prefix = this._importsWithPrefixes.get(moduleName);
|
|
325
|
if (prefix == null) {
|
|
326
|
prefix = "i" + this._importsWithPrefixes.size;
|
|
327
|
this._importsWithPrefixes.set(moduleName, prefix);
|
|
328
|
}
|
|
329
|
prefixIdent = ts.createIdentifier(prefix);
|
|
330
|
}
|
|
331
|
// name can only be null during JIT which never executes this code.
|
|
332
|
var result = prefixIdent ? ts.createPropertyAccess(prefixIdent, name) : ts.createIdentifier(name);
|
|
333
|
return result;
|
|
334
|
};
|
|
335
|
return _NodeEmitterVisitor;
|
|
336
|
}());
|
|
337
|
function getMethodName(methodRef) {
|
|
338
|
if (methodRef.name) {
|
|
339
|
return methodRef.name;
|
|
340
|
}
|
|
341
|
else {
|
|
342
|
switch (methodRef.builtin) {
|
|
343
|
case compiler_1.BuiltinMethod.Bind:
|
|
344
|
return 'bind';
|
|
345
|
case compiler_1.BuiltinMethod.ConcatArray:
|
|
346
|
return 'concat';
|
|
347
|
case compiler_1.BuiltinMethod.SubscribeObservable:
|
|
348
|
return 'subscribe';
|
|
349
|
}
|
|
350
|
}
|
|
351
|
throw new Error('Unexpected method reference form');
|
|
352
|
}
|
|
353
|
//# sourceMappingURL=node_emitter.js.map
|