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(SourcePath, String),141 #[error("can't resolve absolute {0}")]142 AbsoluteImportFileNotFound(PathBuf),143 #[error("resolved file not found: {:?}", .0)]144 ResolvedFileNotFound(SourcePath),145 #[error("can't import {0}: is a directory")]146 ImportIsADirectory(SourcePath),147 #[error("imported file is not valid utf-8: {0:?}")]148 ImportBadFileUtf8(SourcePath),149 #[error("import io error: {0}")]150 ImportIo(String),151 #[error("tried to import {1} from {0}, but imports are not supported")]152 ImportNotSupported(SourcePath, String),153 #[error("tried to import {0}, but absolute imports are not supported")]154 AbsoluteImportNotSupported(PathBuf),155 #[error("can't import from virtual file")]156 CantImportFromVirtualFile,157 #[error(158 "syntax error: expected {}, got {:?}",159 .error.expected,160 .path.code().chars().nth(error.location.offset)161 .map_or_else(|| "EOF".into(), |c| c.to_string())162 )]163 ImportSyntaxError {164 path: Source,165 #[trace(skip)]166 error: Box<jrsonnet_parser::ParseError>,167 },168169 #[error("runtime error: {}", format_empty_str(.0))]170 RuntimeError(IStr),171 #[error("stack overflow, try to reduce recursion, or set --max-stack to bigger value")]172 StackOverflow,173 #[error("infinite recursion detected")]174 InfiniteRecursionDetected,175 #[error("tried to index by fractional value")]176 FractionalIndex,177 #[error("attempted to divide by zero")]178 DivisionByZero,179180 #[error("string manifest output is not an string")]181 StringManifestOutputIsNotAString,182 #[error("stream manifest output is not an array")]183 StreamManifestOutputIsNotAArray,184 #[error("multi manifest output is not an object")]185 MultiManifestOutputIsNotAObject,186187 #[error("cant recurse stream manifest")]188 StreamManifestOutputCannotBeRecursed,189 #[error("stream manifest output cannot consist of raw strings")]190 StreamManifestCannotNestString,191192 #[error("{}", format_empty_str(.0))]193 ImportCallbackError(String),194 #[error("invalid unicode codepoint: {0}")]195 InvalidUnicodeCodepointGot(u32),196197 #[error("format error: {0}")]198 Format(#[from] FormatError),199 #[error("type error: {0}")]200 TypeError(TypeLocError),201202 #[cfg(feature = "anyhow-error")]203 #[error(transparent)]204 Other(Rc<anyhow::Error>),205}206207#[cfg(feature = "anyhow-error")]208impl From<anyhow::Error> for LocError {209 fn from(e: anyhow::Error) -> Self {210 Self::new(Error::Other(Rc::new(e)))211 }212}213214impl From<Error> for LocError {215 fn from(e: Error) -> Self {216 Self::new(e)217 }218}219220#[derive(Clone, Debug, Trace)]221pub struct StackTraceElement {222 pub location: Option<ExprLocation>,223 pub desc: String,224}225#[derive(Debug, Clone, Trace)]226pub struct StackTrace(pub Vec<StackTraceElement>);227228#[derive(Clone, Trace)]229pub struct LocError(Box<(Error, StackTrace)>);230impl LocError {231 pub fn new(e: Error) -> Self {232 Self(Box::new((e, StackTrace(vec![]))))233 }234235 pub const fn error(&self) -> &Error {236 &(self.0).0237 }238 pub fn error_mut(&mut self) -> &mut Error {239 &mut (self.0).0240 }241 pub const fn trace(&self) -> &StackTrace {242 &(self.0).1243 }244 pub fn trace_mut(&mut self) -> &mut StackTrace {245 &mut (self.0).1246 }247}248impl Debug for LocError {249 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {250 writeln!(f, "{}", self.0 .0)?;251 for el in &self.0 .1 .0 {252 writeln!(f, "\t{:?}", el)?;253 }254 Ok(())255 }256}257258pub type Result<V, E = LocError> = std::result::Result<V, E>;259260#[macro_export]261macro_rules! throw {262 ($e: expr) => {263 return Err($e.into())264 };265}266267#[macro_export]268macro_rules! throw_runtime {269 ($($tt:tt)*) => {270 return Err($crate::error::Error::RuntimeError(format!($($tt)*).into()).into())271 };272}