solgen/lib/accounts.js

A TypeScript SDK generator for Solana IDL - Automatically generates type definitions, account interfaces, and instruction builders

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a=e?e+".":"";switch(n.type){case"bool":case"u8":case"i8":case"u16":case"i16":case"u32":case"i32":case"f32":case"f64":case"string":return`${a}${(0,o.default)(n.name)}`;case"bytes":return`Uint8Array.from(${a}${(0,o.default)(n.name)})`;case"u64":case"i64":case"u128":case"i128":return`new BN(${a}${(0,o.default)(n.name)})`;case"u256":case"i256":case"pubkey":return`new PublicKey(${a}${(0,o.default)(n.name)})`;default:if(u(n.type)&&"vec"in n.type){let c=b({name:"item",type:n.type.vec},"",t);return c==="item"?`${a}${(0,o.default)(n.name)}`:`${a}${(0,o.default)(n.name)}.map((item) => ${c})`}if(u(n.type)&&"array"in n.type){let c=b({name:"item",type:n.type.array[0]},"",t);return c==="item"?`${a}${(0,o.default)(n.name)}`:`${a}${(0,o.default)(n.name)}.map((item) => ${c})`}if(u(n.type)&&"option"in n.type){let c=b({name:(0,o.default)(n.name),type:n.type.option},e,t);return c===`${a}${(0,o.default)(n.name)}`?c:`(${a}${(0,o.default)(n.name)} && ${c}) || null`}if(u(n.type)&&"coption"in n.type){let c=b({name:(0,o.default)(n.name),type:n.type.coption},e,t);return c===`${a}${(0,o.default)(n.name)}`?c:`(${a}${(0,o.default)(n.name)} && ${c}) || null`}if(u(n.type)&&"defined"in n.type)return`${t}${n.type.defined.name}.fromJSON(${a}${(0,o.default)(n.name)})`;throw typeof n.type=="object"&&"generic"in n.type?new Error("generic type not supported"):(n.type,new Error("Unreachable."))}}var d=O(require("camelcase"));function R(n,e,t){e.accounts===void 0||e.accounts.length===0||(V(n,e,t),W(n,e,t))}function V(n,e,t){var c;let a=n.createSourceFile(t("accounts/index.ts"),"",{overwrite:!0});(c=e.accounts)==null||c.forEach(i=>{let s=(0,d.default)(i.name,{pascalCase:!0});a.addExportDeclaration({namedExports:[s],moduleSpecifier:`./${s}`}),a.addExportDeclaration({namedExports:[k(s),g(s)],isTypeOnly:!0,moduleSpecifier:`./${s}`})})}function W(n,e,t){var a;(a=e.accounts)==null||a.forEach(c=>{var B;let i=n.createSourceFile(t(`accounts/${(0,d.default)(c.name,{pascalCase:!0})}.ts`),"",{overwrite:!0});i.addStatements(['import { PublicKey, Connection } from "@solana/web3.js"','import BN from "bn.js"','import * as solay from "solay"',...e.types&&e.types.length>0?['import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars']:[]]);let s=(B=e.types)==null?void 0:B.find(r=>r.name===c.name);if(!s||s.type.kind!=="struct")throw new Error(`Type ${c.name} not found`);let p=s.type.fields;if(!p)throw new Error(`Fields for ${c.name} not found`);let m=(0,d.default)(c.name,{pascalCase:!0});i.addInterface({isExported:!0,name:k(m),properties:p.map(r=>({name:(0,d.default)(r.name),type:f(e,r.type),docs:r.docs&&[r.docs.join(`
`)]}))}),i.addInterface({isExported:!0,name:g(m),properties:p.map(r=>({name:(0,d.default)(r.name),type:w(r.type),docs:r.docs&&[r.docs.join(`
`)]}))});let l=i.addClass({isExported:!0,name:m,properties:p.map(r=>({isReadonly:!0,name:(0,d.default)(r.name),type:f(e,r.type,"types.",!1),docs:r.docs&&[r.docs.join(`
`)]})),docs:c.docs&&[c.docs.join(`
`)]});l.addProperty({isStatic:!0,isReadonly:!0,name:"discriminator",initializer:`Buffer.from([${L(m).toString()}])`}).prependWhitespace(`
`),l.addProperty({isStatic:!0,isReadonly:!0,name:"layout",initializer:r=>{r.write("solay.struct(["),p.forEach($=>{r.writeLine(E($.type,(0,d.default)($.name))+",")}),r.write("])")}}).prependWhitespace(`
`),l.addConstructor({parameters:[{name:"fields",type:k(m)}],statements:r=>{p.forEach($=>{let j=y(e,$);r.writeLine(`this.${(0,d.default)($.name)} = ${j}`)})}}),l.addMethod({isStatic:!0,isAsync:!0,name:"fetch",parameters:[{name:"c",type:"Connection"},{name:"address",type:"PublicKey"},{name:"programId",type:"PublicKey"}],returnType:`Promise<${m} | null>`,statements:[r=>{r.writeLine("const info = await c.getAccountInfo(address)"),r.blankLine(),r.write("if (info === null)"),r.inlineBlock(()=>{r.writeLine("return null")}),r.write("if (!info.owner.equals(programId))"),r.inlineBlock(()=>{r.writeLine(`throw new Error("account doesn't belong to this program")`)}),r.blankLine(),r.writeLine("return this.decode(info.data)")}]}),l.addMethod({isStatic:!0,isAsync:!0,name:"fetchMultiple",parameters:[{name:"c",type:"Connection"},{name:"addresses",type:"PublicKey[]"},{name:"programId",type:"PublicKey"}],returnType:`Promise<Array<${m} | null>>`,statements:[r=>{r.writeLine("const infos = await c.getMultipleAccountsInfo(addresses)"),r.blankLine(),r.write("return infos.map((info) => "),r.inlineBlock(()=>{r.write("if (info === null)"),r.inlineBlock(()=>{r.writeLine("return null")}),r.write(""),r.write("if (!info.owner.equals(programId))"),r.inlineBlock(()=>{r.writeLine(`throw new Error("account doesn't belong to this program")`)}),r.blankLine(),r.writeLine("return this.decode(info.data)")}),r.write(")")}]}),l.addMethod({isStatic:!0,name:"decode",parameters:[{name:"data",type:"Buffer"}],returnType:m,statements:[r=>{r.write(`if (!data.slice(0, 8).equals(${m}.discriminator))`),r.inlineBlock(()=>{r.writeLine('throw new Error("invalid account discriminator")')}),r.blankLine(),r.writeLine(`const dec = ${m}.layout.decode(data.slice(8))`),r.blankLine(),r.write(`return new ${m}({`),p.forEach($=>{let j=I(e,$,"dec.");r.writeLine(`${(0,d.default)($.name)}: ${j},`)}),r.write("})")}]}),l.addMethod({name:"toJSON",returnType:g(m),statements:[r=>{r.write("return {"),p.forEach($=>{r.writeLine(`${(0,d.default)($.name)}: ${h(e,$,"this.")},`)}),r.write("}")}]}),l.addMethod({isStatic:!0,name:"fromJSON",returnType:m,parameters:[{name:"obj",type:g(m)}],statements:[r=>{r.write(`return new ${m}({`),p.forEach($=>{r.writeLine(`${(0,d.default)($.name)}: ${b($)},`)}),r.write("})")}]})})}0&&(module.exports={genAccounts});
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