@neo-one/smart-contract-compiler/dist/esm/compile/statement/IfStatementCompiler.js

NEO•ONE TypeScript smart contract compiler.

import { tsUtils } from '@neo-one/ts-utils';
import ts from 'typescript';
import { NodeCompiler } from '../NodeCompiler';
export class IfStatementCompiler extends NodeCompiler {
    constructor() {
        super(...arguments);
        this.kind = ts.SyntaxKind.IfStatement;
    }
    visitNode(sb, node, options) {
        const condition = () => {
            const cond = tsUtils.expression.getExpression(node);
            sb.visit(cond, sb.pushValueOptions(options));
            sb.emitHelper(cond, sb.pushValueOptions(options), sb.helpers.toBoolean({
                type: sb.context.analysis.getType(cond),
            }));
        };
        const whenTrue = () => {
            sb.visit(tsUtils.statement.getThenStatement(node), options);
        };
        let whenFalse;
        const nodeWhenFalse = tsUtils.statement.getElseStatement(node);
        if (nodeWhenFalse !== undefined) {
            whenFalse = () => {
                sb.visit(nodeWhenFalse, options);
            };
        }
        sb.emitHelper(node, options, sb.helpers.if({
            condition,
            whenTrue,
            whenFalse,
        }));
    }
}

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