@neo-one/smart-contract-compiler/dist/esm/compile/builtins/buffer/equals.js

NEO•ONE TypeScript smart contract compiler.

import { tsUtils } from '@neo-one/ts-utils';
import { isBuffer } from '../../helper/types';
import { BuiltinInstanceMemberCall } from '../BuiltinInstanceMemberCall';
export class BufferEquals extends BuiltinInstanceMemberCall {
    canCall(sb, _func, node) {
        const arg = tsUtils.argumented.getArguments(node)[0];
        if (arg === undefined) {
            return false;
        }
        const type = sb.context.analysis.getType(arg);
        return type !== undefined && isBuffer(sb.context, arg, type);
    }
    emitCall(sb, func, node, optionsIn, visited) {
        const options = sb.pushValueOptions(optionsIn);
        if (!visited) {
            sb.visit(tsUtils.expression.getExpression(func), options);
        }
        if (tsUtils.argumented.getArguments(node).length < 1) {
            return;
        }
        sb.visit(tsUtils.argumented.getArguments(node)[0], options);
        sb.emitOp(node, 'EQUAL');
        if (optionsIn.pushValue) {
            sb.emitHelper(node, options, sb.helpers.wrapBoolean);
        }
        else {
            sb.emitOp(node, 'DROP');
        }
    }
}

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