mirror of
https://github.com/react/react-native-devtools-frontend.git
synced 2026-10-19 13:04:39 +08:00
Johan Bay
986acd0681
This change makes it easier to run the script from directly `roll_py.deps` without having to fetch the dependencies first. This also makes it easier to track which dependencies our tooling have. Change-Id: I1ce55074ee6a1fffa6f2a2f05a56d0d74b4aca90 Bug: 1255619 Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3431346 Reviewed-by: Mathias Bynens <mathias@chromium.org> Commit-Queue: Johan Bay <jobay@chromium.org>
75 lines
2.0 KiB
JavaScript
75 lines
2.0 KiB
JavaScript
import { Base } from "./base.js";
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import { Type } from "./type.js";
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import {
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const_data,
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const_value,
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primitive_type,
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autoParenter,
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unescape,
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} from "./helpers.js";
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export class Constant extends Base {
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/**
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* @param {import("../tokeniser.js").Tokeniser} tokeniser
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*/
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static parse(tokeniser) {
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/** @type {Base["tokens"]} */
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const tokens = {};
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tokens.base = tokeniser.consume("const");
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if (!tokens.base) {
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return;
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}
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let idlType = primitive_type(tokeniser);
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if (!idlType) {
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const base =
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tokeniser.consumeKind("identifier") ||
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tokeniser.error("Const lacks a type");
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idlType = new Type({ source: tokeniser.source, tokens: { base } });
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}
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if (tokeniser.probe("?")) {
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tokeniser.error("Unexpected nullable constant type");
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}
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idlType.type = "const-type";
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tokens.name =
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tokeniser.consumeKind("identifier") ||
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tokeniser.error("Const lacks a name");
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tokens.assign =
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tokeniser.consume("=") || tokeniser.error("Const lacks value assignment");
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tokens.value =
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const_value(tokeniser) || tokeniser.error("Const lacks a value");
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tokens.termination =
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tokeniser.consume(";") ||
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tokeniser.error("Unterminated const, expected `;`");
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const ret = new Constant({ source: tokeniser.source, tokens });
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autoParenter(ret).idlType = idlType;
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return ret;
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}
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get type() {
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return "const";
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}
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get name() {
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return unescape(this.tokens.name.value);
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}
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get value() {
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return const_data(this.tokens.value);
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}
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/** @param {import("../writer.js").Writer} w */
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write(w) {
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const { parent } = this;
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return w.ts.definition(
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w.ts.wrap([
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this.extAttrs.write(w),
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w.token(this.tokens.base),
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w.ts.type(this.idlType.write(w)),
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w.name_token(this.tokens.name, { data: this, parent }),
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w.token(this.tokens.assign),
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w.token(this.tokens.value),
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w.token(this.tokens.termination),
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]),
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{ data: this, parent }
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);
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}
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}
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