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import { SyntaxKind, Type } from 'ts-morph'
import { Ctx } from '../types'
import { evalList } from '../util'
const applyFunc = (ctx: Ctx, fn: Type | undefined, val: string): Type => {
const resultType = (() => {
const baseTypes = fn?.getBaseTypes().flatMap(t => t.getSymbol()?.getName())
if (baseTypes?.includes('Kind1')) {
const [_, resultNode] = ctx.createResult(
`(${ctx.typeToString(fn)} & { input: ${val} })['return']`
)
return resultNode
?.getType()
.getProperty('output')
?.getTypeAtLocation(resultNode)
} else {
const [_key, resultNode] = ctx.createResult(`ReturnType<${ctx.typeToString(fn)}>`)
const resValueNode = resultNode
?.asKind(SyntaxKind.PropertySignature)
?.getChildAtIndexIfKind(2, SyntaxKind.TypeLiteral)
?.getProperty('output')
?.getChildAtIndexIfKind(2, SyntaxKind.TypeReference)
const functionNode = resValueNode
?.getChildAtIndexIfKind(1, SyntaxKind.SyntaxList)
?.getFirstChildIfKind(SyntaxKind.FunctionType)
if (functionNode) {
const typeParameters = functionNode.getTypeParameters() ?? []
if (typeParameters.length > 0) {
const constraint = typeParameters[0]?.getConstraint()
if (constraint) {
constraint?.replaceWithText(val)
} else {
typeParameters[0]?.setConstraint(val)
}
}
return resValueNode?.getType()
}
}
return undefined
})()
// TODO: Cleanup unwanted result node values
if (!resultType) {
throw new Error('Fuck shit')
}
return resultType
}
export default (ctx: Ctx, args: Type[]) => ({
SetEvalEnvironment: async () => {
ctx.setEnv(ctx.getTypeValue(args[0]))
return []
},
DefineEffect: async () => {
const [nameTyp, exprTyp] = args
const name = nameTyp?.getLiteralValue() as string
const exprStr = exprTyp?.getLiteralValue() as string
ctx.addCustomEffect(name, exprStr)
return []
},
CreateRef: async () => {
const val = ctx.typeToString(args[0])
const refKey = ctx.createRef(val)
const [resultKey, _] = ctx.createResult(JSON.stringify(refKey))
return [resultKey]
},
GetRef: async () => {
const refKey = ctx.getTypeValue(args[0])
const val = ctx.getRef(refKey)
if (!val) throw new Error('Ref has been deleted')
const [resultKey, _] = ctx.createResult(val)
return [resultKey]
},
SetRef: async () => {
const [keyTy, valTyp] = args
ctx.setRef(ctx.getTypeValue(keyTy), ctx.typeToString(valTyp))
return []
},
DeleteRef: async () => {
ctx.deleteRef(ctx.getTypeValue(args[0]))
return []
},
Pure: async () => {
const [valTyp] = args
const [resultKey, _] = ctx.createResult(ctx.typeToString(valTyp))
return [resultKey]
},
Print: async () => {
console.log(...args.map(ctx.typeToString))
return []
},
PutString: async () => {
const [strinTyp] = args
const typString = ctx.getTypeValue(strinTyp) ?? ctx.typeToString(strinTyp)
process.stdout.write(typString)
return []
},
Debug: async () => {
const [labelTyp, valueTyp] = args
const label = ctx.getTypeValue(labelTyp)
const value = ctx.typeToString(valueTyp)
console.log(label, value)
const [resultKey, _] = ctx.createResult(JSON.stringify(value))
return [resultKey]
},
Bind: ctx.withScope(async () => {
const [inputTyp, chainToKind] = args
const [resultKey] = inputTyp ? await ctx.evaluateType(ctx, inputTyp) : []
// TODO: Handle resultKey undefined case
const resultType =
applyFunc(ctx, chainToKind, `(${ctx.getResultExpr(resultKey)})['output']`)
return ctx.evaluateType(ctx, resultType)
}),
BindTo: async () => {
const [labelTyp, effTyp] = args
const label = ctx.getTypeValue(labelTyp)
const [resultKey] = effTyp ? await ctx.evaluateType(ctx, effTyp) : []
if (resultKey) {
ctx.addToScope(label, resultKey)
return [resultKey]
}
return []
},
Label: async () => {
const label = ctx.getTypeValue(args[0])
const value = ctx.getKeyInScope(label)
if (!value) {
throw new Error(`Label "${label}" not found`)
}
return [value]
},
Try: async () => {
const [effTyp, catchK] = args
try {
if (!effTyp) throw new Error('wow')
return await ctx.evaluateType(ctx, effTyp)
} catch (e) {
const error = JSON.stringify((e as any)?.message ?? e)
const resultType = applyFunc(ctx, catchK, error)
return ctx.evaluateType(ctx, resultType)
}
},
Throw: async () => {
throw args[0] && ctx.getTypeValue(args[0])
},
JsExpr: async () => {
const [exprTyp] = args
const exprStr = ctx.getTypeValue(exprTyp)
const result = eval(`JSON.stringify(${exprStr})`)
const [resultKey, _] = ctx.createResult(`${result}`)
return [resultKey]
},
Seq: async () => {
const [effectTyps] = args
const effectResults = await evalList(
ctx,
effectTyps?.getTupleElements() ?? []
)
const [resultKey, _] = ctx.createResult(`[
${effectResults.map(ctx.getResultExpr).join(', ')}
]`)
return [resultKey]
},
Do: ctx.withScope(async () => {
const [effectTyps] = args
const effectResults = await evalList(
ctx,
effectTyps?.getTupleElements() ?? []
)
// TODO: Use last type's result instead of last result key
const lastResKey = effectResults[effectResults.length - 1]
const [resultKey, _] = ctx.createResult(
`(${ctx.getResultExpr(lastResKey)})['output']`
)
return [resultKey]
}),
})
|
