9084: fix: avoid panics in match case diagnostic r=matklad a=matklad

bors r+
🤖

closes #8809

9087: fix: fix shell injection in task spawning r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
This commit is contained in:
bors[bot] 2021-05-31 17:12:01 +00:00 committed by GitHub
commit 4cb4b23dc6
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 43 additions and 118 deletions

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@ -349,11 +349,11 @@ impl fmt::Display for CaseType {
#[derive(Debug)]
pub enum IdentType {
Argument,
Constant,
Enum,
Field,
Function,
Parameter,
StaticVariable,
Structure,
Variable,
@ -363,11 +363,11 @@ pub enum IdentType {
impl fmt::Display for IdentType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let repr = match self {
IdentType::Argument => "Argument",
IdentType::Constant => "Constant",
IdentType::Enum => "Enum",
IdentType::Field => "Field",
IdentType::Function => "Function",
IdentType::Parameter => "Parameter",
IdentType::StaticVariable => "Static variable",
IdentType::Structure => "Structure",
IdentType::Variable => "Variable",

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@ -150,29 +150,11 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
expected_case: CaseType::LowerSnakeCase,
});
// Check the param names.
let fn_param_replacements = body
.params
.iter()
.filter_map(|&id| match &body[id] {
Pat::Bind { name, .. } => Some(name),
_ => None,
})
.filter_map(|param_name| {
Some(Replacement {
current_name: param_name.clone(),
suggested_text: to_lower_snake_case(&param_name.to_string())?,
expected_case: CaseType::LowerSnakeCase,
})
})
.collect();
// Check the patterns inside the function body.
// This includes function parameters.
let pats_replacements = body
.pats
.iter()
// We aren't interested in function parameters, we've processed them above.
.filter(|(pat_idx, _)| !body.params.contains(&pat_idx))
.filter_map(|(id, pat)| match pat {
Pat::Bind { name, .. } => Some((id, name)),
_ => None,
@ -190,11 +172,10 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
.collect();
// If there is at least one element to spawn a warning on, go to the source map and generate a warning.
self.create_incorrect_case_diagnostic_for_func(
func,
fn_name_replacement,
fn_param_replacements,
);
if let Some(fn_name_replacement) = fn_name_replacement {
self.create_incorrect_case_diagnostic_for_func(func, fn_name_replacement);
}
self.create_incorrect_case_diagnostic_for_variables(func, pats_replacements);
}
@ -203,100 +184,34 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
fn create_incorrect_case_diagnostic_for_func(
&mut self,
func: FunctionId,
fn_name_replacement: Option<Replacement>,
fn_param_replacements: Vec<Replacement>,
fn_name_replacement: Replacement,
) {
// XXX: only look at sources if we do have incorrect names
if fn_name_replacement.is_none() && fn_param_replacements.is_empty() {
return;
}
let fn_loc = func.lookup(self.db.upcast());
let fn_src = fn_loc.source(self.db.upcast());
// Diagnostic for function name.
if let Some(replacement) = fn_name_replacement {
let ast_ptr = match fn_src.value.name() {
Some(name) => name,
None => {
never!(
"Replacement ({:?}) was generated for a function without a name: {:?}",
replacement,
fn_src
);
return;
}
};
let diagnostic = IncorrectCase {
file: fn_src.file_id,
ident_type: IdentType::Function,
ident: AstPtr::new(&ast_ptr),
expected_case: replacement.expected_case,
ident_text: replacement.current_name.to_string(),
suggested_text: replacement.suggested_text,
};
self.sink.push(diagnostic);
}
// Diagnostics for function params.
let fn_params_list = match fn_src.value.param_list() {
Some(params) => params,
let ast_ptr = match fn_src.value.name() {
Some(name) => name,
None => {
always!(
fn_param_replacements.is_empty(),
"Replacements ({:?}) were generated for a function parameters which had no parameters list: {:?}",
fn_param_replacements,
never!(
"Replacement ({:?}) was generated for a function without a name: {:?}",
fn_name_replacement,
fn_src
);
return;
}
};
let mut fn_params_iter = fn_params_list.params();
for param_to_rename in fn_param_replacements {
// We assume that parameters in replacement are in the same order as in the
// actual params list, but just some of them (ones that named correctly) are skipped.
let ast_ptr: ast::Name = loop {
match fn_params_iter.next() {
Some(element) => {
if let Some(ast::Pat::IdentPat(pat)) = element.pat() {
if pat.to_string() == param_to_rename.current_name.to_string() {
if let Some(name) = pat.name() {
break name;
}
// This is critical. If we consider this parameter the expected one,
// it **must** have a name.
never!(
"Pattern {:?} equals to expected replacement {:?}, but has no name",
element,
param_to_rename
);
return;
}
}
}
None => {
never!(
"Replacement ({:?}) was generated for a function parameter which was not found: {:?}",
param_to_rename, fn_src
);
return;
}
}
};
let diagnostic = IncorrectCase {
file: fn_src.file_id,
ident_type: IdentType::Argument,
ident: AstPtr::new(&ast_ptr),
expected_case: param_to_rename.expected_case,
ident_text: param_to_rename.current_name.to_string(),
suggested_text: param_to_rename.suggested_text,
};
let diagnostic = IncorrectCase {
file: fn_src.file_id,
ident_type: IdentType::Function,
ident: AstPtr::new(&ast_ptr),
expected_case: fn_name_replacement.expected_case,
ident_text: fn_name_replacement.current_name.to_string(),
suggested_text: fn_name_replacement.suggested_text,
};
self.sink.push(diagnostic);
}
self.sink.push(diagnostic);
}
/// Given the information about incorrect variable names, looks up into the source code
@ -327,20 +242,25 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
None => continue,
};
let is_param = ast::Param::can_cast(parent.kind());
// We have to check that it's either `let var = ...` or `var @ Variant(_)` statement,
// because e.g. match arms are patterns as well.
// In other words, we check that it's a named variable binding.
let is_binding = ast::LetStmt::can_cast(parent.kind())
|| (ast::MatchArm::can_cast(parent.kind())
&& ident_pat.at_token().is_some());
if !is_binding {
if !(is_param || is_binding) {
// This pattern is not an actual variable declaration, e.g. `Some(val) => {..}` match arm.
continue;
}
let ident_type =
if is_param { IdentType::Parameter } else { IdentType::Variable };
let diagnostic = IncorrectCase {
file: source_ptr.file_id,
ident_type: IdentType::Variable,
ident_type,
ident: AstPtr::new(&name_ast),
expected_case: replacement.expected_case,
ident_text: replacement.current_name.to_string(),
@ -408,7 +328,7 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
struct_name_replacement: Option<Replacement>,
struct_fields_replacements: Vec<Replacement>,
) {
// XXX: only look at sources if we do have incorrect names
// XXX: Only look at sources if we do have incorrect names.
if struct_name_replacement.is_none() && struct_fields_replacements.is_empty() {
return;
}
@ -723,10 +643,10 @@ fn NonSnakeCaseName() {}
check_diagnostics(
r#"
fn foo(SomeParam: u8) {}
// ^^^^^^^^^ Argument `SomeParam` should have snake_case name, e.g. `some_param`
// ^^^^^^^^^ Parameter `SomeParam` should have snake_case name, e.g. `some_param`
fn foo2(ok_param: &str, CAPS_PARAM: u8) {}
// ^^^^^^^^^^ Argument `CAPS_PARAM` should have snake_case name, e.g. `caps_param`
// ^^^^^^^^^^ Parameter `CAPS_PARAM` should have snake_case name, e.g. `caps_param`
"#,
);
}
@ -1037,4 +957,9 @@ fn qualify() {
"#,
)
}
#[test] // Issue #8809.
fn parenthesized_parameter() {
check_diagnostics(r#"fn f((O): _) {}"#)
}
}

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@ -80,7 +80,7 @@ export async function buildCargoTask(
throwOnError: boolean = false
): Promise<vscode.Task> {
let exec: vscode.ShellExecution | undefined = undefined;
let exec: vscode.ProcessExecution | vscode.ShellExecution | undefined = undefined;
if (customRunner) {
const runnerCommand = `${customRunner}.buildShellExecution`;
@ -105,13 +105,13 @@ export async function buildCargoTask(
if (!exec) {
// Check whether we must use a user-defined substitute for cargo.
const cargoCommand = definition.overrideCargo ? definition.overrideCargo : toolchain.cargoPath();
// Split on spaces to allow overrides like "wrapper cargo".
const overrideCargo = definition.overrideCargo ?? definition.overrideCargo;
const cargoCommand = overrideCargo?.split(" ") ?? [toolchain.cargoPath()];
// Prepare the whole command as one line. It is required if user has provided override command which contains spaces,
// for example "wrapper cargo". Without manual preparation the overridden command will be quoted and fail to execute.
const fullCommand = [cargoCommand, ...args].join(" ");
const fullCommand = [...cargoCommand, ...args];
exec = new vscode.ShellExecution(fullCommand, definition);
exec = new vscode.ProcessExecution(fullCommand[0], fullCommand.slice(1), definition);
}
return new vscode.Task(