1use std::{fmt::Debug, path::PathBuf};23use jrsonnet_gcmodule::Trace;4use jrsonnet_interner::IStr;5use jrsonnet_parser::{BinaryOpType, ExprLocation, Source, SourcePath, UnaryOpType};6use jrsonnet_types::ValType;7use thiserror::Error;89use crate::{stdlib::format::FormatError, typed::TypeLocError};1011fn format_found(list: &[IStr], what: &str) -> String {12 if list.is_empty() {13 return String::new();14 }15 let mut out = String::new();16 out.push_str("\nThere is ");17 out.push_str(what);18 if list.len() > 1 {19 out.push('s');20 }21 out.push_str(" with similar name");22 if list.len() > 1 {23 out.push('s');24 }25 out.push_str(" present: ");26 for (i, v) in list.iter().enumerate() {27 if i != 0 {28 out.push_str(", ");29 }30 out.push_str(v as &str);31 }32 out33}3435fn format_signature(sig: &FunctionSignature) -> String {36 let mut out = String::new();37 out.push_str("\nFunction has the following signature: ");38 out.push('(');39 if sig.is_empty() {40 out.push_str("/*no arguments*/");41 } else {42 for (i, (name, has_default)) in sig.iter().enumerate() {43 if i != 0 {44 out.push_str(", ");45 }46 if let Some(name) = name {47 out.push_str(name);48 } else {49 out.push_str("<unnamed>");50 }51 if *has_default {52 out.push_str(" = <default>");53 }54 }55 }56 out.push(')');57 out58}5960const fn format_empty_str(str: &str) -> &str {61 if str.is_empty() {62 "\"\" (empty string)"63 } else {64 str65 }66}6768type FunctionSignature = Vec<(Option<IStr>, bool)>;6970#[derive(Error, Debug, Clone, Trace)]71pub enum Error {72 #[error("intrinsic not found: {0}")]73 IntrinsicNotFound(IStr),7475 #[error("operator {0} does not operate on type {1}")]76 UnaryOperatorDoesNotOperateOnType(UnaryOpType, ValType),77 #[error("binary operation {1} {0} {2} is not implemented")]78 BinaryOperatorDoesNotOperateOnValues(BinaryOpType, ValType, ValType),7980 #[error("no top level object in this context")]81 NoTopLevelObjectFound,82 #[error("self is only usable inside objects")]83 CantUseSelfOutsideOfObject,84 #[error("no super found")]85 NoSuperFound,8687 #[error("for loop can only iterate over arrays")]88 InComprehensionCanOnlyIterateOverArray,8990 #[error("array out of bounds: {0} is not within [0,{1})")]91 ArrayBoundsError(usize, usize),92 #[error("string out of bounds: {0} is not within [0,{1})")]93 StringBoundsError(usize, usize),9495 #[error("assert failed: {}", format_empty_str(.0))]96 AssertionFailed(IStr),9798 #[error("variable is not defined: {0}{}", format_found(.1, "variable"))]99 VariableIsNotDefined(IStr, Vec<IStr>),100 #[error("duplicate local var: {0}")]101 DuplicateLocalVar(IStr),102103 #[error("type mismatch: expected {}, got {2} {0}", .1.iter().map(|e| format!("{}", e)).collect::<Vec<_>>().join(", "))]104 TypeMismatch(&'static str, Vec<ValType>, ValType),105 #[error("no such field: {}{}", format_empty_str(.0), format_found(.1, "field"))]106 NoSuchField(IStr, Vec<IStr>),107108 #[error("only functions can be called, got {0}")]109 OnlyFunctionsCanBeCalledGot(ValType),110 #[error("parameter {0} is not defined")]111 UnknownFunctionParameter(String),112 #[error("argument {0} is already bound")]113 BindingParameterASecondTime(IStr),114 #[error("too many args, function has {0}{}", format_signature(.1))]115 TooManyArgsFunctionHas(usize, FunctionSignature),116 #[error("function argument is not passed: {0}{}", format_signature(.1))]117 FunctionParameterNotBoundInCall(IStr, FunctionSignature),118119 #[error("external variable is not defined: {0}")]120 UndefinedExternalVariable(IStr),121122 #[error("field name should be string, got {0}")]123 FieldMustBeStringGot(ValType),124 #[error("duplicate field name: {}", format_empty_str(.0))]125 DuplicateFieldName(IStr),126127 #[error("attempted to index array with string {}", format_empty_str(.0))]128 AttemptedIndexAnArrayWithString(IStr),129 #[error("{0} index type should be {1}, got {2}")]130 ValueIndexMustBeTypeGot(ValType, ValType, ValType),131 #[error("cant index into {0}")]132 CantIndexInto(ValType),133 #[error("{0} is not indexable")]134 ValueIsNotIndexable(ValType),135136 #[error("super can't be used standalone")]137 StandaloneSuper,138139 #[error("can't resolve {1} from {0}")]140 ImportFileNotFound(PathBuf, String),141 #[error("resolved file not found: {:?}", .0)]142 ResolvedFileNotFound(SourcePath),143 #[error("imported file is not valid utf-8: {0:?}")]144 ImportBadFileUtf8(SourcePath),145 #[error("import io error: {0}")]146 ImportIo(String),147 #[error("tried to import {1} from {0}, but imports is not supported")]148 ImportNotSupported(PathBuf, PathBuf),149 #[error("can't import from virtual file")]150 CantImportFromVirtualFile,151 #[error(152 "syntax error: expected {}, got {:?}",153 .error.expected,154 .path.code().chars().nth(error.location.offset)155 .map_or_else(|| "EOF".into(), |c| c.to_string())156 )]157 ImportSyntaxError {158 path: Source,159 #[trace(skip)]160 error: Box<jrsonnet_parser::ParseError>,161 },162163 #[error("runtime error: {}", format_empty_str(.0))]164 RuntimeError(IStr),165 #[error("stack overflow, try to reduce recursion, or set --max-stack to bigger value")]166 StackOverflow,167 #[error("infinite recursion detected")]168 InfiniteRecursionDetected,169 #[error("tried to index by fractional value")]170 FractionalIndex,171 #[error("attempted to divide by zero")]172 DivisionByZero,173174 #[error("string manifest output is not an string")]175 StringManifestOutputIsNotAString,176 #[error("stream manifest output is not an array")]177 StreamManifestOutputIsNotAArray,178 #[error("multi manifest output is not an object")]179 MultiManifestOutputIsNotAObject,180181 #[error("cant recurse stream manifest")]182 StreamManifestOutputCannotBeRecursed,183 #[error("stream manifest output cannot consist of raw strings")]184 StreamManifestCannotNestString,185186 #[error("{}", format_empty_str(.0))]187 ImportCallbackError(String),188 #[error("invalid unicode codepoint: {0}")]189 InvalidUnicodeCodepointGot(u32),190191 #[error("format error: {0}")]192 Format(#[from] FormatError),193 #[error("type error: {0}")]194 TypeError(TypeLocError),195196 #[cfg(feature = "anyhow-error")]197 #[error(transparent)]198 Other(Rc<anyhow::Error>),199}200201#[cfg(feature = "anyhow-error")]202impl From<anyhow::Error> for LocError {203 fn from(e: anyhow::Error) -> Self {204 Self::new(Error::Other(Rc::new(e)))205 }206}207208impl From<Error> for LocError {209 fn from(e: Error) -> Self {210 Self::new(e)211 }212}213214#[derive(Clone, Debug, Trace)]215pub struct StackTraceElement {216 pub location: Option<ExprLocation>,217 pub desc: String,218}219#[derive(Debug, Clone, Trace)]220pub struct StackTrace(pub Vec<StackTraceElement>);221222#[derive(Clone, Trace)]223pub struct LocError(Box<(Error, StackTrace)>);224impl LocError {225 pub fn new(e: Error) -> Self {226 Self(Box::new((e, StackTrace(vec![]))))227 }228229 pub const fn error(&self) -> &Error {230 &(self.0).0231 }232 pub fn error_mut(&mut self) -> &mut Error {233 &mut (self.0).0234 }235 pub const fn trace(&self) -> &StackTrace {236 &(self.0).1237 }238 pub fn trace_mut(&mut self) -> &mut StackTrace {239 &mut (self.0).1240 }241}242impl Debug for LocError {243 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {244 writeln!(f, "{}", self.0 .0)?;245 for el in &self.0 .1 .0 {246 writeln!(f, "\t{:?}", el)?;247 }248 Ok(())249 }250}251252pub type Result<V, E = LocError> = std::result::Result<V, E>;253254#[macro_export]255macro_rules! throw {256 ($e: expr) => {257 return Err($e.into())258 };259}260261#[macro_export]262macro_rules! throw_runtime {263 ($($tt:tt)*) => {264 return Err($crate::error::Error::RuntimeError(format!($($tt)*).into()).into())265 };266}