43 lines
1.1 KiB
TypeScript
43 lines
1.1 KiB
TypeScript
import NodeFactory from '/imports/parser/parseTree/NodeFactory';
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import { Context, ResolvedResult } from '/imports/parser/resolve';
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type ConstantValueType = number | string | boolean | undefined
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export type ConstantNode = {
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parseType: 'constant';
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value: ConstantValueType;
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// TODO replace all `constantNode.valueType` with `typeof constantNode.value`
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valueType: 'number' | 'string' | 'boolean' | 'undefined';
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}
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interface ConstantFactory extends NodeFactory {
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create({ value }: { value: ConstantValueType }): ConstantNode;
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compile(
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node: ConstantNode, scope: Record<string, any>, context: Context
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): ResolvedResult;
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roll?: undefined;
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reduce?: undefined;
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resolve?: undefined;
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toString(node: ConstantNode): string;
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traverse?: undefined;
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map?: undefined;
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}
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const constant: ConstantFactory = {
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create({ value }): ConstantNode {
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return {
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parseType: 'constant',
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valueType: typeof value as 'number' | 'string' | 'boolean' | 'undefined',
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value,
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}
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},
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compile(node, scope, context) {
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return { result: node, context };
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},
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toString(node) {
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return `${node.value}`;
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},
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}
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export default constant;
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