32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
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import BaseJSNode from './BaseJSNode.js';
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export default class TemplateLiteral extends BaseJSNode {
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run() {
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let result = '';
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for (let i = 0; i < this.node.quasis.length; ++i) {
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const quasi = this.node.quasis[i];
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if (quasi.type === 'TemplateElement') {
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if (quasi.value.cooked === null) {
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throw new Error(`Invalid template literal: ${quasi.value.raw}`);
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}
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if (quasi.value.cooked !== undefined) {
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result += quasi.value.cooked;
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}
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if (!quasi.tail) {
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const expr = this.node.expressions[i];
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if (expr !== undefined) {
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// This will automatically stringify the node's return value, since result is a string.
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result += this.visitor.visitNode(expr);
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}
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else {
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throw new Error(`Expected expression after: ${quasi.value}`);
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}
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}
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}
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else {
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throw new Error(`Unhandled quasi type: ${quasi.type}`);
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}
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}
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return result;
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}
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}
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