Function beginCatchBlock

test/fixtures/snapshot/typescript.js:103503–103533

* Enters the `catch` clause of a generated `try` statement. * * @param variable The catch variable.

(variable)

         * @param variable The catch variable.
         */
        function beginCatchBlock(variable) {
            ts.Debug.assert(peekBlockKind() === 0 /* CodeBlockKind.Exception */);
            // generated identifiers should already be unique within a file
            var name;
            if (ts.isGeneratedIdentifier(variable.name)) {
                name = variable.name;
                hoistVariableDeclaration(variable.name);
            }
            else {
                var text = ts.idText(variable.name);
                name = declareLocal(text);
                if (!renamedCatchVariables) {
                    renamedCatchVariables = new ts.Map();
                    renamedCatchVariableDeclarations = [];
                    context.enableSubstitution(79 /* SyntaxKind.Identifier */);
                }
                renamedCatchVariables.set(text, true);
                renamedCatchVariableDeclarations[ts.getOriginalNodeId(variable)] = name;
            }
            var exception = peekBlock();
            ts.Debug.assert(exception.state < 1 /* ExceptionBlockState.Catch */);
            var endLabel = exception.endLabel;
            emitBreak(endLabel);
            var catchLabel = defineLabel();
            markLabel(catchLabel);
            exception.state = 1 /* ExceptionBlockState.Catch */;
            exception.catchVariable = name;
            exception.catchLabel = catchLabel;
            emitAssignment(name, factory.createCallExpression(factory.createPropertyAccessExpression(state, "sent"), /*typeArguments*/ undefined, []));
            emitNop();
        }
        /**
         * Enters the `finally` block of a generated `try` statement.
         */