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Simply error code.

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This commit is contained in:
Stephen Chung 2020-08-06 10:17:32 +08:00
parent 41b41ff834
commit 2f395492de
16 changed files with 228 additions and 243 deletions
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6
doc/src/engine/custom-syntax.md
View File

@ -200,8 +200,10 @@ fn implementation_func(
// Evaluate the condition expression
let stop = !engine.eval_expression_tree(context, scope, condition)?
.as_bool().map_err(|_| EvalAltResult::ErrorBooleanArgMismatch(
"do-while".into(), expr.position()))?;
.as_bool()
.map_err(|_| EvalAltResult::ErrorBooleanArgMismatch(
"do-while".into(), expr.position()
))?;
if stop {
break;

2
doc/src/rust/modules/imp-resolver.md
View File

@ -38,7 +38,7 @@ impl ModuleResolver for MyModuleResolver {
let module: Module = load_secret_module(path);
Ok(module)
} else {
Err(Box::new(EvalAltResult::ErrorModuleNotFound(path.into(), pos)))
Err(EvalAltResult::ErrorModuleNotFound(path.into(), pos).into())
}
}
}

31
src/api.rs
View File

@ -608,21 +608,13 @@ impl Engine {
#[cfg(not(target_arch = "wasm32"))]
fn read_file(path: PathBuf) -> Result<String, Box<EvalAltResult>> {
let mut f = File::open(path.clone()).map_err(|err| {
Box::new(EvalAltResult::ErrorReadingScriptFile(
path.clone(),
Position::none(),
err,
))
EvalAltResult::ErrorReadingScriptFile(path.clone(), Position::none(), err)
})?;
let mut contents = String::new();
f.read_to_string(&mut contents).map_err(|err| {
Box::new(EvalAltResult::ErrorReadingScriptFile(
path.clone(),
Position::none(),
err,
))
EvalAltResult::ErrorReadingScriptFile(path.clone(), Position::none(), err)
})?;
Ok(contents)
@ -1042,11 +1034,12 @@ impl Engine {
let typ = self.map_type_name(result.type_name());
return result.try_cast::<T>().ok_or_else(|| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<T>()).into(),
typ.into(),
Position::none(),
))
)
.into()
});
}
@ -1190,11 +1183,12 @@ impl Engine {
let typ = self.map_type_name(result.type_name());
return result.try_cast().ok_or_else(|| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<T>()).into(),
typ.into(),
Position::none(),
))
)
.into()
});
}
@ -1278,13 +1272,8 @@ impl Engine {
) -> FuncReturn<Dynamic> {
let lib = lib.as_ref();
let mut args: StaticVec<_> = arg_values.iter_mut().collect();
let fn_def =
get_script_function_by_signature(lib, name, args.len(), true).ok_or_else(|| {
Box::new(EvalAltResult::ErrorFunctionNotFound(
name.into(),
Position::none(),
))
})?;
let fn_def = get_script_function_by_signature(lib, name, args.len(), true)
.ok_or_else(|| EvalAltResult::ErrorFunctionNotFound(name.into(), Position::none()))?;
let mut state = State::new();
let mut mods = Imports::new();

148
src/engine.rs
View File

@ -228,9 +228,7 @@ impl Target<'_> {
#[cfg(not(feature = "no_object"))]
Self::LockGuard((r, _)) => **r = new_val,
Self::Value(_) => {
return Err(Box::new(EvalAltResult::ErrorAssignmentToUnknownLHS(
Position::none(),
)))
return EvalAltResult::ErrorAssignmentToUnknownLHS(Position::none()).into();
}
#[cfg(not(feature = "no_index"))]
Self::StringChar(string, index, _) if string.is::<ImmutableString>() => {
@ -517,12 +515,7 @@ pub fn search_imports<'s>(
.rev()
.find(|(n, _)| n == root)
.map(|(_, m)| m)
.ok_or_else(|| {
Box::new(EvalAltResult::ErrorModuleNotFound(
root.to_string(),
*root_pos,
))
})?
.ok_or_else(|| EvalAltResult::ErrorModuleNotFound(root.to_string(), *root_pos))?
})
}
@ -550,12 +543,7 @@ pub fn search_imports_mut<'s>(
.rev()
.find(|(n, _)| n == root)
.map(|(_, m)| m)
.ok_or_else(|| {
Box::new(EvalAltResult::ErrorModuleNotFound(
root.to_string(),
*root_pos,
))
})?
.ok_or_else(|| EvalAltResult::ErrorModuleNotFound(root.to_string(), *root_pos))?
})
}
@ -577,10 +565,11 @@ pub fn search_namespace<'s, 'a>(
.get_qualified_var_mut(*hash_var)
.map_err(|err| match *err {
EvalAltResult::ErrorVariableNotFound(_, _) => {
Box::new(EvalAltResult::ErrorVariableNotFound(
EvalAltResult::ErrorVariableNotFound(
format!("{}{}", modules, name),
*pos,
))
)
.into()
}
_ => err.new_position(*pos),
})?;
@ -612,7 +601,7 @@ pub fn search_scope_only<'s, 'a>(
if let Some(val) = this_ptr {
return Ok(((*val).into(), KEYWORD_THIS, ScopeEntryType::Normal, *pos));
} else {
return Err(Box::new(EvalAltResult::ErrorUnboundThis(*pos)));
return EvalAltResult::ErrorUnboundThis(*pos).into();
}
}
@ -625,7 +614,7 @@ pub fn search_scope_only<'s, 'a>(
// Find the variable in the scope
scope
.get_index(name)
.ok_or_else(|| Box::new(EvalAltResult::ErrorVariableNotFound(name.into(), *pos)))?
.ok_or_else(|| EvalAltResult::ErrorVariableNotFound(name.into(), *pos))?
.0
};
@ -634,7 +623,7 @@ pub fn search_scope_only<'s, 'a>(
// Check for data race - probably not necessary because the only place it should conflict is in a method call
// when the object variable is also used as a parameter.
// if cfg!(not(feature = "no_closure")) && val.is_locked() {
// return Err(Box::new(EvalAltResult::ErrorDataRace(name.into(), *pos)));
// return EvalAltResult::ErrorDataRace(name.into(), *pos).into();
// }
Ok((val, name, typ, *pos))
@ -966,10 +955,7 @@ impl Engine {
}
}
// Syntax error
_ => Err(Box::new(EvalAltResult::ErrorDotExpr(
"".into(),
rhs.position(),
))),
_ => EvalAltResult::ErrorDotExpr("".into(), rhs.position()).into(),
}
}
@ -1016,10 +1002,8 @@ impl Engine {
// Constants cannot be modified
match typ {
ScopeEntryType::Constant if new_val.is_some() => {
return Err(Box::new(EvalAltResult::ErrorAssignmentToConstant(
var_name.to_string(),
pos,
)));
return EvalAltResult::ErrorAssignmentToConstant(var_name.to_string(), pos)
.into();
}
ScopeEntryType::Constant | ScopeEntryType::Normal => (),
}
@ -1033,9 +1017,7 @@ impl Engine {
}
// {expr}.??? = ??? or {expr}[???] = ???
expr if new_val.is_some() => {
return Err(Box::new(EvalAltResult::ErrorAssignmentToUnknownLHS(
expr.position(),
)));
return EvalAltResult::ErrorAssignmentToUnknownLHS(expr.position()).into();
}
// {expr}.??? or {expr}[???]
expr => {
@ -1160,12 +1142,10 @@ impl Engine {
arr.get_mut(index as usize)
.map(Target::from)
.ok_or_else(|| {
Box::new(EvalAltResult::ErrorArrayBounds(arr_len, index, idx_pos))
EvalAltResult::ErrorArrayBounds(arr_len, index, idx_pos).into()
})
} else {
Err(Box::new(EvalAltResult::ErrorArrayBounds(
arr_len, index, idx_pos,
)))
EvalAltResult::ErrorArrayBounds(arr_len, index, idx_pos).into()
}
}
@ -1200,13 +1180,11 @@ impl Engine {
if index >= 0 {
let offset = index as usize;
let ch = s.chars().nth(offset).ok_or_else(|| {
Box::new(EvalAltResult::ErrorStringBounds(chars_len, index, idx_pos))
EvalAltResult::ErrorStringBounds(chars_len, index, idx_pos)
})?;
Ok(Target::StringChar(val, offset, ch.into()))
} else {
Err(Box::new(EvalAltResult::ErrorStringBounds(
chars_len, index, idx_pos,
)))
EvalAltResult::ErrorStringBounds(chars_len, index, idx_pos).into()
}
}
@ -1227,10 +1205,11 @@ impl Engine {
})
}
_ => Err(Box::new(EvalAltResult::ErrorIndexingType(
_ => EvalAltResult::ErrorIndexingType(
self.map_type_name(val.type_name()).into(),
Position::none(),
))),
)
.into(),
}
}
@ -1284,15 +1263,15 @@ impl Engine {
// Only allows String or char
Dynamic(Union::Str(s)) => Ok(rhs_value.contains_key(&s).into()),
Dynamic(Union::Char(c)) => Ok(rhs_value.contains_key(&c.to_string()).into()),
_ => Err(Box::new(EvalAltResult::ErrorInExpr(lhs.position()))),
_ => EvalAltResult::ErrorInExpr(lhs.position()).into(),
},
Dynamic(Union::Str(rhs_value)) => match lhs_value {
// Only allows String or char
Dynamic(Union::Str(s)) => Ok(rhs_value.contains(s.as_str()).into()),
Dynamic(Union::Char(c)) => Ok(rhs_value.contains(c).into()),
_ => Err(Box::new(EvalAltResult::ErrorInExpr(lhs.position()))),
_ => EvalAltResult::ErrorInExpr(lhs.position()).into(),
},
_ => Err(Box::new(EvalAltResult::ErrorInExpr(rhs.position()))),
_ => EvalAltResult::ErrorInExpr(rhs.position()).into(),
}
}
@ -1323,7 +1302,7 @@ impl Engine {
if let Some(val) = this_ptr {
Ok(val.clone())
} else {
Err(Box::new(EvalAltResult::ErrorUnboundThis((x.0).1)))
EvalAltResult::ErrorUnboundThis((x.0).1).into()
}
}
Expr::Variable(_) => {
@ -1454,16 +1433,13 @@ impl Engine {
Ok(Default::default())
}
// Error assignment to constant
expr if expr.is_constant() => {
Err(Box::new(EvalAltResult::ErrorAssignmentToConstant(
expr.get_constant_str(),
expr.position(),
)))
}
// Syntax error
expr => Err(Box::new(EvalAltResult::ErrorAssignmentToUnknownLHS(
expr if expr.is_constant() => EvalAltResult::ErrorAssignmentToConstant(
expr.get_constant_str(),
expr.position(),
))),
)
.into(),
// Syntax error
expr => EvalAltResult::ErrorAssignmentToUnknownLHS(expr.position()).into(),
}
}
@ -1632,7 +1608,7 @@ impl Engine {
self.eval_expr(scope, mods, state, lib, this_ptr, expr, level)?
.as_bool()
.map_err(|_| Box::new(EvalAltResult::ErrorLogicGuard(expr.position())))
.map_err(|_| EvalAltResult::ErrorLogicGuard(expr.position()).into())
.and_then(|guard_val| {
if guard_val {
self.eval_stmt(scope, mods, state, lib, this_ptr, if_block, level)
@ -1665,9 +1641,7 @@ impl Engine {
}
}
Ok(false) => return Ok(Default::default()),
Err(_) => {
return Err(Box::new(EvalAltResult::ErrorLogicGuard(expr.position())))
}
Err(_) => return EvalAltResult::ErrorLogicGuard(expr.position()).into(),
}
},
@ -1727,43 +1701,45 @@ impl Engine {
state.scope_level -= 1;
Ok(Default::default())
} else {
Err(Box::new(EvalAltResult::ErrorFor(x.1.position())))
EvalAltResult::ErrorFor(x.1.position()).into()
}
}
// Continue statement
Stmt::Continue(pos) => Err(Box::new(EvalAltResult::ErrorLoopBreak(false, *pos))),
Stmt::Continue(pos) => EvalAltResult::ErrorLoopBreak(false, *pos).into(),
// Break statement
Stmt::Break(pos) => Err(Box::new(EvalAltResult::ErrorLoopBreak(true, *pos))),
Stmt::Break(pos) => EvalAltResult::ErrorLoopBreak(true, *pos).into(),
// Return value
Stmt::ReturnWithVal(x) if x.1.is_some() && (x.0).0 == ReturnType::Return => {
let expr = x.1.as_ref().unwrap();
Err(Box::new(EvalAltResult::Return(
EvalAltResult::Return(
self.eval_expr(scope, mods, state, lib, this_ptr, expr, level)?,
(x.0).1,
)))
)
.into()
}
// Empty return
Stmt::ReturnWithVal(x) if (x.0).0 == ReturnType::Return => {
Err(Box::new(EvalAltResult::Return(Default::default(), (x.0).1)))
EvalAltResult::Return(Default::default(), (x.0).1).into()
}
// Throw value
Stmt::ReturnWithVal(x) if x.1.is_some() && (x.0).0 == ReturnType::Exception => {
let expr = x.1.as_ref().unwrap();
let val = self.eval_expr(scope, mods, state, lib, this_ptr, expr, level)?;
Err(Box::new(EvalAltResult::ErrorRuntime(
EvalAltResult::ErrorRuntime(
val.take_string().unwrap_or_else(|_| "".into()),
(x.0).1,
)))
)
.into()
}
// Empty throw
Stmt::ReturnWithVal(x) if (x.0).0 == ReturnType::Exception => {
Err(Box::new(EvalAltResult::ErrorRuntime("".into(), (x.0).1)))
EvalAltResult::ErrorRuntime("".into(), (x.0).1).into()
}
Stmt::ReturnWithVal(_) => unreachable!(),
@ -1811,7 +1787,7 @@ impl Engine {
// Guard against too many modules
#[cfg(not(feature = "unchecked"))]
if state.modules >= self.limits.max_modules {
return Err(Box::new(EvalAltResult::ErrorTooManyModules(*_pos)));
return EvalAltResult::ErrorTooManyModules(*_pos).into();
}
if let Some(path) = self
@ -1830,13 +1806,13 @@ impl Engine {
Ok(Default::default())
} else {
Err(Box::new(EvalAltResult::ErrorModuleNotFound(
path.to_string(),
expr.position(),
)))
Err(
EvalAltResult::ErrorModuleNotFound(path.to_string(), expr.position())
.into(),
)
}
} else {
Err(Box::new(EvalAltResult::ErrorImportExpr(expr.position())))
EvalAltResult::ErrorImportExpr(expr.position()).into()
}
}
@ -1849,10 +1825,7 @@ impl Engine {
let alias = rename.as_ref().map(|(n, _)| n).unwrap_or_else(|| id);
scope.set_entry_alias(index, alias.clone());
} else {
return Err(Box::new(EvalAltResult::ErrorVariableNotFound(
id.into(),
*id_pos,
)));
return EvalAltResult::ErrorVariableNotFound(id.into(), *id_pos).into();
}
}
Ok(Default::default())
@ -1976,26 +1949,29 @@ impl Engine {
let (arr, map, s) = calc_size(result.as_ref().unwrap());
if s > self.limits.max_string_size {
Err(Box::new(EvalAltResult::ErrorDataTooLarge(
EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
self.limits.max_string_size,
s,
Position::none(),
)))
)
.into()
} else if arr > self.limits.max_array_size {
Err(Box::new(EvalAltResult::ErrorDataTooLarge(
EvalAltResult::ErrorDataTooLarge(
"Size of array".to_string(),
self.limits.max_array_size,
arr,
Position::none(),
)))
)
.into()
} else if map > self.limits.max_map_size {
Err(Box::new(EvalAltResult::ErrorDataTooLarge(
EvalAltResult::ErrorDataTooLarge(
"Number of properties in object map".to_string(),
self.limits.max_map_size,
map,
Position::none(),
)))
)
.into()
} else {
result
}
@ -2009,16 +1985,14 @@ impl Engine {
#[cfg(not(feature = "unchecked"))]
// Guard against too many operations
if self.limits.max_operations > 0 && state.operations > self.limits.max_operations {
return Err(Box::new(EvalAltResult::ErrorTooManyOperations(
Position::none(),
)));
return EvalAltResult::ErrorTooManyOperations(Position::none()).into();
}
// Report progress - only in steps
if let Some(progress) = &self.progress {
if !progress(&state.operations) {
// Terminate script if progress returns false
return Err(Box::new(EvalAltResult::ErrorTerminated(Position::none())));
return EvalAltResult::ErrorTerminated(Position::none()).into();
}
}

80
src/fn_call.rs
View File

@ -178,10 +178,11 @@ pub fn ensure_no_data_race(
.enumerate()
.find(|(_, a)| a.is_locked())
{
return Err(Box::new(EvalAltResult::ErrorDataRace(
return EvalAltResult::ErrorDataRace(
format!("argument #{} of function '{}'", n + 1 + skip, fn_name),
Position::none(),
)));
)
.into();
}
}
@ -237,22 +238,22 @@ impl Engine {
return Ok(match fn_name {
KEYWORD_PRINT => (
(self.print)(result.as_str().map_err(|typ| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<ImmutableString>()).into(),
typ.into(),
Position::none(),
))
)
})?)
.into(),
false,
),
KEYWORD_DEBUG => (
(self.debug)(result.as_str().map_err(|typ| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<ImmutableString>()).into(),
typ.into(),
Position::none(),
))
)
})?)
.into(),
false,
@ -276,56 +277,60 @@ impl Engine {
// Getter function not found?
if let Some(prop) = extract_prop_from_getter(fn_name) {
return Err(Box::new(EvalAltResult::ErrorDotExpr(
return EvalAltResult::ErrorDotExpr(
format!(
"Unknown property '{}' for {}, or it is write-only",
prop,
self.map_type_name(args[0].type_name())
),
Position::none(),
)));
)
.into();
}
// Setter function not found?
if let Some(prop) = extract_prop_from_setter(fn_name) {
return Err(Box::new(EvalAltResult::ErrorDotExpr(
return EvalAltResult::ErrorDotExpr(
format!(
"Unknown property '{}' for {}, or it is read-only",
prop,
self.map_type_name(args[0].type_name())
),
Position::none(),
)));
)
.into();
}
// index getter function not found?
#[cfg(not(feature = "no_index"))]
if fn_name == FN_IDX_GET && args.len() == 2 {
return Err(Box::new(EvalAltResult::ErrorFunctionNotFound(
return EvalAltResult::ErrorFunctionNotFound(
format!(
"{} [{}]",
self.map_type_name(args[0].type_name()),
self.map_type_name(args[1].type_name()),
),
Position::none(),
)));
)
.into();
}
// index setter function not found?
#[cfg(not(feature = "no_index"))]
if fn_name == FN_IDX_SET {
return Err(Box::new(EvalAltResult::ErrorFunctionNotFound(
return EvalAltResult::ErrorFunctionNotFound(
format!(
"{} [{}]=",
self.map_type_name(args[0].type_name()),
self.map_type_name(args[1].type_name()),
),
Position::none(),
)));
)
.into();
}
// Raise error
Err(Box::new(EvalAltResult::ErrorFunctionNotFound(
EvalAltResult::ErrorFunctionNotFound(
format!(
"{} ({})",
fn_name,
@ -339,7 +344,8 @@ impl Engine {
.join(", ")
),
Position::none(),
)))
)
.into()
}
/// Call a script-defined function.
@ -400,17 +406,15 @@ impl Engine {
// Convert return statement to return value
EvalAltResult::Return(x, _) => Ok(x),
EvalAltResult::ErrorInFunctionCall(name, err, _) => {
Err(Box::new(EvalAltResult::ErrorInFunctionCall(
EvalAltResult::ErrorInFunctionCall(
format!("{} > {}", fn_name, name),
err,
Position::none(),
)))
)
.into()
}
_ => Err(Box::new(EvalAltResult::ErrorInFunctionCall(
fn_name.to_string(),
err,
Position::none(),
))),
_ => EvalAltResult::ErrorInFunctionCall(fn_name.to_string(), err, Position::none())
.into(),
});
// Remove all local variables
@ -482,20 +486,22 @@ impl Engine {
KEYWORD_FN_PTR
if args.len() == 1 && !self.has_override(lib, hash_fn, hash_script, pub_only) =>
{
Err(Box::new(EvalAltResult::ErrorRuntime(
EvalAltResult::ErrorRuntime(
"'Fn' should not be called in method style. Try Fn(...);".into(),
Position::none(),
)))
)
.into()
}
// eval - reaching this point it must be a method-style call
KEYWORD_EVAL
if args.len() == 1 && !self.has_override(lib, hash_fn, hash_script, pub_only) =>
{
Err(Box::new(EvalAltResult::ErrorRuntime(
EvalAltResult::ErrorRuntime(
"'eval' should not be called in method style. Try eval(...);".into(),
Position::none(),
)))
)
.into()
}
// Normal script function call
@ -783,11 +789,12 @@ impl Engine {
return arg_value
.take_immutable_string()
.map_err(|typ| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<ImmutableString>()).into(),
typ.into(),
expr.position(),
))
)
.into()
})
.and_then(|s| FnPtr::try_from(s))
.map(Into::<Dynamic>::into)
@ -801,11 +808,12 @@ impl Engine {
let fn_ptr = self.eval_expr(scope, mods, state, lib, this_ptr, expr, level)?;
if !fn_ptr.is::<FnPtr>() {
return Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
return EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<FnPtr>()).into(),
self.map_type_name(fn_ptr.type_name()).into(),
expr.position(),
)));
)
.into();
}
let (fn_name, fn_curry) = fn_ptr.cast::<FnPtr>().take_data();
@ -855,11 +863,12 @@ impl Engine {
// Recalculate hash
hash_script = calc_fn_hash(empty(), name, curry.len() + args_expr.len(), empty());
} else {
return Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
return EvalAltResult::ErrorMismatchOutputType(
self.map_type_name(type_name::<FnPtr>()).into(),
fn_name.type_name().into(),
expr.position(),
)));
)
.into();
}
}
@ -1048,7 +1057,7 @@ impl Engine {
}
Some(f) => f.get_native_fn()(self, lib, args.as_mut()),
None if def_val.is_some() => Ok(def_val.unwrap().into()),
None => Err(Box::new(EvalAltResult::ErrorFunctionNotFound(
None => EvalAltResult::ErrorFunctionNotFound(
format!(
"{}{} ({})",
modules,
@ -1063,7 +1072,8 @@ impl Engine {
.join(", ")
),
Position::none(),
))),
)
.into(),
}
}
}

5
src/fn_native.rs
View File

@ -175,10 +175,7 @@ impl TryFrom<ImmutableString> for FnPtr {
if is_valid_identifier(value.chars()) {
Ok(Self(value, Default::default()))
} else {
Err(Box::new(EvalAltResult::ErrorFunctionNotFound(
value.into(),
Position::none(),
)))
EvalAltResult::ErrorFunctionNotFound(value.into(), Position::none()).into()
}
}
}

12
src/module.rs
View File

@ -248,10 +248,7 @@ impl Module {
hash_var: u64,
) -> Result<&mut Dynamic, Box<EvalAltResult>> {
self.all_variables.get_mut(&hash_var).ok_or_else(|| {
Box::new(EvalAltResult::ErrorVariableNotFound(
String::new(),
Position::none(),
))
EvalAltResult::ErrorVariableNotFound(String::new(), Position::none()).into()
})
}
@ -1517,7 +1514,7 @@ mod stat {
self.0
.get(path)
.cloned()
.ok_or_else(|| Box::new(EvalAltResult::ErrorModuleNotFound(path.into(), pos)))
.ok_or_else(|| EvalAltResult::ErrorModuleNotFound(path.into(), pos).into())
}
}
}
@ -1597,10 +1594,7 @@ mod collection {
}
}
Err(Box::new(EvalAltResult::ErrorModuleNotFound(
path.into(),
pos,
)))
EvalAltResult::ErrorModuleNotFound(path.into(), pos).into()
}
}
}

93
src/packages/arithmetic.rs
View File

@ -17,7 +17,6 @@ use num_traits::{
use num_traits::float::Float;
use crate::stdlib::{
boxed::Box,
fmt::Display,
format,
ops::{Add, BitAnd, BitOr, BitXor, Div, Mul, Neg, Rem, Shl, Shr, Sub},
@ -26,28 +25,31 @@ use crate::stdlib::{
// Checked add
pub fn add<T: Display + CheckedAdd>(x: T, y: T) -> FuncReturn<T> {
x.checked_add(&y).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Addition overflow: {} + {}", x, y),
Position::none(),
))
)
.into()
})
}
// Checked subtract
pub fn sub<T: Display + CheckedSub>(x: T, y: T) -> FuncReturn<T> {
x.checked_sub(&y).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Subtraction underflow: {} - {}", x, y),
Position::none(),
))
)
.into()
})
}
// Checked multiply
pub fn mul<T: Display + CheckedMul>(x: T, y: T) -> FuncReturn<T> {
x.checked_mul(&y).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Multiplication overflow: {} * {}", x, y),
Position::none(),
))
)
.into()
})
}
// Checked divide
@ -57,26 +59,26 @@ where
{
// Detect division by zero
if y == T::zero() {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Division by zero: {} / {}", x, y),
Position::none(),
)));
)
.into();
}
x.checked_div(&y).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Division overflow: {} / {}", x, y),
Position::none(),
))
)
.into()
})
}
// Checked negative - e.g. -(i32::MIN) will overflow i32::MAX
pub fn neg<T: Display + CheckedNeg>(x: T) -> FuncReturn<T> {
x.checked_neg().ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
format!("Negation overflow: -{}", x),
Position::none(),
))
EvalAltResult::ErrorArithmetic(format!("Negation overflow: -{}", x), Position::none())
.into()
})
}
// Checked absolute
@ -87,10 +89,8 @@ pub fn abs<T: Display + CheckedNeg + PartialOrd + Zero>(x: T) -> FuncReturn<T> {
Ok(x)
} else {
x.checked_neg().ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
format!("Negation overflow: -{}", x),
Position::none(),
))
EvalAltResult::ErrorArithmetic(format!("Negation overflow: -{}", x), Position::none())
.into()
})
}
}
@ -140,34 +140,38 @@ fn binary_xor<T: BitXor>(x: T, y: T) -> FuncReturn<<T as BitXor>::Output> {
pub fn shl<T: Display + CheckedShl>(x: T, y: INT) -> FuncReturn<T> {
// Cannot shift by a negative number of bits
if y < 0 {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Left-shift by a negative number: {} << {}", x, y),
Position::none(),
)));
)
.into();
}
CheckedShl::checked_shl(&x, y as u32).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Left-shift by too many bits: {} << {}", x, y),
Position::none(),
))
)
.into()
})
}
// Checked right-shift
pub fn shr<T: Display + CheckedShr>(x: T, y: INT) -> FuncReturn<T> {
// Cannot shift by a negative number of bits
if y < 0 {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Right-shift by a negative number: {} >> {}", x, y),
Position::none(),
)));
)
.into();
}
CheckedShr::checked_shr(&x, y as u32).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Right-shift by too many bits: {} % {}", x, y),
Position::none(),
))
)
.into()
})
}
// Unchecked left-shift - may panic if shifting by a negative number of bits
@ -181,10 +185,11 @@ pub fn shr_u<T: Shr<T>>(x: T, y: T) -> FuncReturn<<T as Shr<T>>::Output> {
// Checked modulo
pub fn modulo<T: Display + CheckedRem>(x: T, y: T) -> FuncReturn<T> {
x.checked_rem(&y).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Modulo division by zero or overflow: {} % {}", x, y),
Position::none(),
))
)
.into()
})
}
// Unchecked modulo - may panic if dividing by zero
@ -195,35 +200,40 @@ fn modulo_u<T: Rem>(x: T, y: T) -> FuncReturn<<T as Rem>::Output> {
pub fn pow_i_i(x: INT, y: INT) -> FuncReturn<INT> {
if cfg!(not(feature = "only_i32")) {
if y > (u32::MAX as INT) {
Err(Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Integer raised to too large an index: {} ~ {}", x, y),
Position::none(),
)))
)
.into()
} else if y < 0 {
Err(Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Integer raised to a negative index: {} ~ {}", x, y),
Position::none(),
)))
)
.into()
} else {
x.checked_pow(y as u32).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Power overflow: {} ~ {}", x, y),
Position::none(),
))
)
.into()
})
}
} else {
if y < 0 {
Err(Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Integer raised to a negative index: {} ~ {}", x, y),
Position::none(),
)))
)
.into()
} else {
x.checked_pow(y as u32).ok_or_else(|| {
Box::new(EvalAltResult::ErrorArithmetic(
EvalAltResult::ErrorArithmetic(
format!("Power overflow: {} ~ {}", x, y),
Position::none(),
))
)
.into()
})
}
}
@ -242,10 +252,11 @@ pub fn pow_f_f(x: FLOAT, y: FLOAT) -> FuncReturn<FLOAT> {
pub fn pow_f_i(x: FLOAT, y: INT) -> FuncReturn<FLOAT> {
// Raise to power that is larger than an i32
if y > (i32::MAX as INT) {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Number raised to too large an index: {} ~ {}", x, y),
Position::none(),
)));
)
.into();
}
Ok(x.powi(y as i32))

5
src/packages/array_basic.rs
View File

@ -43,12 +43,13 @@ fn pad<T: Variant + Clone>(
&& len > 0
&& (len as usize) > _engine.limits.max_array_size
{
return Err(Box::new(EvalAltResult::ErrorDataTooLarge(
return EvalAltResult::ErrorDataTooLarge(
"Size of array".to_string(),
_engine.limits.max_array_size,
len as usize,
Position::none(),
)));
)
.into();
}
if len > 0 {

10
src/packages/math_basic.rs
View File

@ -12,7 +12,7 @@ use crate::{result::EvalAltResult, token::Position};
use num_traits::float::Float;
#[cfg(not(feature = "no_float"))]
use crate::stdlib::{boxed::Box, format};
use crate::stdlib::format;
#[allow(dead_code)]
#[cfg(feature = "only_i32")]
@ -109,10 +109,10 @@ def_package!(crate:BasicMathPackage:"Basic mathematic functions.", lib, {
"to_int",
|x: f32| {
if x > (MAX_INT as f32) {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Integer overflow: to_int({})", x),
Position::none(),
)));
).into();
}
Ok(x.trunc() as INT)
@ -122,10 +122,10 @@ def_package!(crate:BasicMathPackage:"Basic mathematic functions.", lib, {
"to_int",
|x: FLOAT| {
if x > (MAX_INT as FLOAT) {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Integer overflow: to_int({})", x),
Position::none(),
)));
).into();
}
Ok(x.trunc() as INT)

8
src/packages/string_more.rs
View File

@ -231,12 +231,12 @@ def_package!(crate:MoreStringPackage:"Additional string utilities, including str
// Check if string will be over max size limit
#[cfg(not(feature = "unchecked"))]
if _engine.limits.max_string_size > 0 && len > 0 && (len as usize) > _engine.limits.max_string_size {
return Err(Box::new(EvalAltResult::ErrorDataTooLarge(
return EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
_engine.limits.max_string_size,
len as usize,
Position::none(),
)));
).into();
}
if len > 0 {
@ -254,12 +254,12 @@ def_package!(crate:MoreStringPackage:"Additional string utilities, including str
#[cfg(not(feature = "unchecked"))]
if _engine.limits.max_string_size > 0 && s.len() > _engine.limits.max_string_size {
return Err(Box::new(EvalAltResult::ErrorDataTooLarge(
return EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
_engine.limits.max_string_size,
s.len(),
Position::none(),
)));
).into();
}
}
}

12
src/packages/time_basic.rs
View File

@ -41,13 +41,13 @@ def_package!(crate:BasicTimePackage:"Basic timing utilities.", lib, {
#[cfg(not(feature = "unchecked"))]
if seconds > (MAX_INT as u64) {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!(
"Integer overflow for timestamp duration: {}",
-(seconds as i64)
),
Position::none(),
)));
).into();
}
return Ok(-(seconds as INT));
@ -62,10 +62,10 @@ def_package!(crate:BasicTimePackage:"Basic timing utilities.", lib, {
#[cfg(not(feature = "unchecked"))]
if seconds > (MAX_INT as u64) {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Integer overflow for timestamp duration: {}", seconds),
Position::none(),
)));
).into();
}
return Ok(seconds as INT);
@ -92,10 +92,10 @@ def_package!(crate:BasicTimePackage:"Basic timing utilities.", lib, {
#[cfg(not(feature = "unchecked"))]
if seconds > (MAX_INT as u64) {
return Err(Box::new(EvalAltResult::ErrorArithmetic(
return EvalAltResult::ErrorArithmetic(
format!("Integer overflow for timestamp.elapsed: {}", seconds),
Position::none(),
)));
).into();
}
Ok(seconds as INT)

6
src/result.rs
View File

@ -361,3 +361,9 @@ impl EvalAltResult {
self
}
}
impl<T> From<EvalAltResult> for Result<T, Box<EvalAltResult>> {
fn from(err: EvalAltResult) -> Self {
Err(err.into())
}
}

10
src/serde/de.rs
View File

@ -53,11 +53,12 @@ impl<'de> DynamicDeserializer<'de> {
}
/// Shortcut for a type conversion error.
fn type_error_str<T>(&self, error: &str) -> Result<T, Box<EvalAltResult>> {
Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
error.into(),
self.value.type_name().into(),
Position::none(),
)))
)
.into()
}
fn deserialize_int<V: Visitor<'de>>(
&mut self,
@ -134,10 +135,7 @@ pub fn from_dynamic<'de, T: Deserialize<'de>>(
impl Error for Box<EvalAltResult> {
fn custom<T: fmt::Display>(err: T) -> Self {
Box::new(EvalAltResult::ErrorParsing(
ParseErrorType::BadInput(err.to_string()),
Position::none(),
))
EvalAltResult::ErrorParsing(ParseErrorType::BadInput(err.to_string()), Position::none())
}
}

38
src/serde/ser.rs
View File

@ -99,10 +99,7 @@ pub fn to_dynamic<T: Serialize>(value: T) -> Result<Dynamic, Box<EvalAltResult>>
impl Error for Box<EvalAltResult> {
fn custom<T: fmt::Display>(err: T) -> Self {
Box::new(EvalAltResult::ErrorRuntime(
err.to_string(),
Position::none(),
))
EvalAltResult::ErrorRuntime(err.to_string(), Position::none())
}
}
@ -298,22 +295,24 @@ impl Serializer for &mut DynamicSerializer {
make_variant(_variant, content)
}
#[cfg(feature = "no_object")]
return Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
return EvalAltResult::ErrorMismatchOutputType(
"Dynamic".into(),
"map".into(),
Position::none(),
)));
)
.into();
}
fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, Box<EvalAltResult>> {
#[cfg(not(feature = "no_index"))]
return Ok(DynamicSerializer::new(Array::new().into()));
#[cfg(feature = "no_index")]
return Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
return EvalAltResult::ErrorMismatchOutputType(
"Dynamic".into(),
"array".into(),
Position::none(),
)));
)
.into();
}
fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Box<EvalAltResult>> {
@ -346,11 +345,12 @@ impl Serializer for &mut DynamicSerializer {
let err_type = "map";
#[cfg(not(feature = "no_object"))]
let err_type = "array";
Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
"Dynamic".into(),
err_type.into(),
Position::none(),
)))
)
.into()
}
}
@ -358,11 +358,12 @@ impl Serializer for &mut DynamicSerializer {
#[cfg(not(feature = "no_object"))]
return Ok(DynamicSerializer::new(Map::new().into()));
#[cfg(feature = "no_object")]
return Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
return EvalAltResult::ErrorMismatchOutputType(
"Dynamic".into(),
"map".into(),
Position::none(),
)));
)
.into();
}
fn serialize_struct(
@ -386,11 +387,12 @@ impl Serializer for &mut DynamicSerializer {
map: Map::with_capacity(_len),
});
#[cfg(feature = "no_object")]
return Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
return EvalAltResult::ErrorMismatchOutputType(
"Dynamic".into(),
"map".into(),
Position::none(),
)));
)
.into();
}
}
@ -499,11 +501,11 @@ impl SerializeMap for DynamicSerializer {
let key = mem::take(&mut self._key)
.take_immutable_string()
.map_err(|typ| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
"string".into(),
typ.into(),
Position::none(),
))
)
})?;
let _value = _value.serialize(&mut *self)?;
let map = self._value.downcast_mut::<Map>().unwrap();
@ -523,11 +525,11 @@ impl SerializeMap for DynamicSerializer {
{
let _key: Dynamic = _key.serialize(&mut *self)?;
let _key = _key.take_immutable_string().map_err(|typ| {
Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
"string".into(),
typ.into(),
Position::none(),
))
)
})?;
let _value = _value.serialize(&mut *self)?;
let map = self._value.downcast_mut::<Map>().unwrap();

5
src/serde/str.rs
View File

@ -20,11 +20,12 @@ impl<'a> ImmutableStringDeserializer<'a> {
}
/// Shortcut for a type conversion error.
fn type_error<T>(&self) -> Result<T, Box<EvalAltResult>> {
Err(Box::new(EvalAltResult::ErrorMismatchOutputType(
EvalAltResult::ErrorMismatchOutputType(
type_name::<T>().into(),
"string".into(),
Position::none(),
)))
)
.into()
}
}