37 lines
1.2 KiB
TypeScript
37 lines
1.2 KiB
TypeScript
import type { SysCallMapping } from "$lib/plugos/system.ts";
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import { evalExpression } from "$common/space_lua/eval.ts";
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import { parse, parseExpressionString } from "../space_lua/parse.ts";
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import type { CommonSystem } from "$common/common_system.ts";
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import { LuaStackFrame, luaValueToJS } from "$common/space_lua/runtime.ts";
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import { buildThreadLocalEnv } from "$common/space_lua_api.ts";
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export function luaSyscalls(commonSystem: CommonSystem): SysCallMapping {
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return {
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"lua.parse": (_ctx, code: string) => {
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return parse(code);
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},
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/**
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* Evaluates a Lua expression and returns the result as a JavaScript value
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* @param _ctx
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* @param expression
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* @returns
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*/
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"lua.evalExpression": async (_ctx, expression: string) => {
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try {
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const ast = parseExpressionString(expression);
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const env = await buildThreadLocalEnv(
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commonSystem.system,
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commonSystem.spaceLuaEnv.env,
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);
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const sf = new LuaStackFrame(env, null);
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return luaValueToJS(
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evalExpression(ast, commonSystem.spaceLuaEnv.env, sf),
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);
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} catch (e: any) {
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console.error("Lua eval error: ", e.message, e.sf?.astCtx);
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throw e;
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}
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},
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};
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}
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