TryStatement.ts

import * as errors from "../../../errors";
import { ts } from "../../../typescript";
import { Block } from "./Block";
import { CatchClause } from "./CatchClause";
import { Statement } from "./Statement";

export const TryStatementBase = Statement;
export class TryStatement extends TryStatementBase<ts.TryStatement> {

    /**
     * Gets this try statement's try block.
     */
    getTryBlock(): Block {
        return this._getNodeFromCompilerNode(this.compilerNode.tryBlock);
    }

    /**
     * Gets this try statement's catch clause or undefined if none exists.
     */
    getCatchClause(): CatchClause | undefined {
        return this._getNodeFromCompilerNodeIfExists(this.compilerNode.catchClause);
    }

    /**
     * Gets this try statement's catch clause or throws if none exists.
     */
    getCatchClauseOrThrow() {
        return errors.throwIfNullOrUndefined(this.getCatchClause(), "Expected to find a catch clause.");
    }

    /**
     * Gets this try statement's finally block or undefined if none exists.
     */
    getFinallyBlock(): Block | undefined {
        if (this.compilerNode.finallyBlock == null || this.compilerNode.finallyBlock.getFullWidth() === 0)
            return undefined;

        return this._getNodeFromCompilerNode(this.compilerNode.finallyBlock);
    }

    /**
     * Gets this try statement's finally block or throws if none exists.
     */
    getFinallyBlockOrThrow() {
        return errors.throwIfNullOrUndefined(this.getFinallyBlock(), "Expected to find a finally block.");
    }
}