@neo-one/smart-contract-compiler
Version:
NEO•ONE TypeScript smart contract compiler.
48 lines (46 loc) • 1.71 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ArrayPop = void 0;
const ts_utils_1 = require("@neo-one/ts-utils");
const BuiltinInstanceMemberCall_1 = require("../BuiltinInstanceMemberCall");
class ArrayPop extends BuiltinInstanceMemberCall_1.BuiltinInstanceMemberCall {
canCall(_sb, _func, _node) {
return true;
}
emitCall(sb, func, node, optionsIn, visited) {
const options = sb.pushValueOptions(optionsIn);
if (!visited) {
sb.visit(ts_utils_1.tsUtils.expression.getExpression(func), options);
}
sb.emitHelper(node, options, sb.helpers.unwrapArray);
sb.emitHelper(node, options, sb.helpers.if({
condition: () => {
sb.emitOp(node, 'DUP');
sb.emitOp(node, 'ARRAYSIZE');
sb.emitPushInt(node, 0);
sb.emitOp(node, 'NUMEQUAL');
},
whenTrue: () => {
sb.emitOp(node, 'DROP');
sb.emitHelper(node, options, sb.helpers.wrapUndefined);
},
whenFalse: () => {
sb.emitOp(node, 'DUP');
sb.emitOp(node, 'ARRAYSIZE');
sb.emitOp(node, 'DEC');
sb.emitOp(node, 'SWAP');
sb.emitOp(node, 'TUCK');
sb.emitOp(node, 'OVER');
sb.emitOp(node, 'PICKITEM');
sb.emitOp(node, 'ROT');
sb.emitOp(node, 'ROT');
sb.emitOp(node, 'REMOVE');
},
}));
if (!optionsIn.pushValue) {
sb.emitOp(node, 'DROP');
}
}
}
exports.ArrayPop = ArrayPop;
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