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Shell: Make Immediate expression invocation fallible

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This removes a whole bunch of FIXMEs in the immediate expr
implementations as well :^)
This commit is contained in:
Ali Mohammad Pur 2023-02-18 17:14:19 +03:30 • committed by Ali Mohammad Pur
parent 007767fc14
commit 5f950df3d4
3 changed files with 79 additions and 79 deletions
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2
Userland/Shell/AST.cpp
View file

@ -2048,7 +2048,7 @@ ErrorOr<void> ImmediateExpression::dump(int level) const
RefPtr<Value> ImmediateExpression::run(RefPtr<Shell> shell) RefPtr<Value> ImmediateExpression::run(RefPtr<Shell> shell)
{ {
auto node = shell->run_immediate_function(m_function.name, *this, arguments()); auto node = shell->run_immediate_function(m_function.name, *this, arguments()).release_value_but_fixme_should_propagate_errors();
if (node) if (node)
return node->run(shell); return node->run(shell);

150
Userland/Shell/ImmediateFunctions.cpp
View file

@ -10,7 +10,7 @@
namespace Shell { namespace Shell {
RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments, bool across) ErrorOr<RefPtr<AST::Node>> Shell::immediate_length_impl(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments, bool across)
{ {
auto name = across ? "length_across" : "length"; auto name = across ? "length_across" : "length";
if (arguments.size() < 1 || arguments.size() > 2) { if (arguments.size() < 1 || arguments.size() > 2) {
@ -59,18 +59,18 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
if (expr_node->is_list()) if (expr_node->is_list())
mode = List; mode = List;
else if (expr_node->is_simple_variable()) // "Look inside" variables else if (expr_node->is_simple_variable()) // "Look inside" variables
mode = const_cast<AST::Node*>(expr_node)->run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors()->is_list_without_resolution() ? List : String; mode = TRY(const_cast<AST::Node*>(expr_node)->run(this)->resolve_without_cast(this))->is_list_without_resolution() ? List : String;
else if (is<AST::ImmediateExpression>(expr_node)) else if (is<AST::ImmediateExpression>(expr_node))
mode = List; mode = List;
else else
mode = String; mode = String;
} }
auto value_with_number = [&](auto number) -> NonnullRefPtr<AST::Node> { auto value_with_number = [&](auto number) -> ErrorOr<NonnullRefPtr<AST::Node>> {
return AST::make_ref_counted<AST::BarewordLiteral>(invoking_node.position(), String::number(number).release_value_but_fixme_should_propagate_errors()); return AST::make_ref_counted<AST::BarewordLiteral>(invoking_node.position(), TRY(String::number(number)));
}; };
auto do_across = [&](StringView mode_name, auto& values) { auto do_across = [&](StringView mode_name, auto& values) -> ErrorOr<RefPtr<AST::Node>> {
if (is_inferred) if (is_inferred)
mode_name = "infer"sv; mode_name = "infer"sv;
// Translate to a list of applications of `length <mode_name>` // Translate to a list of applications of `length <mode_name>`
@ -80,9 +80,9 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
// ImmediateExpression(length <mode_name> <entry>) // ImmediateExpression(length <mode_name> <entry>)
resulting_nodes.unchecked_append(AST::make_ref_counted<AST::ImmediateExpression>( resulting_nodes.unchecked_append(AST::make_ref_counted<AST::ImmediateExpression>(
expr_node->position(), expr_node->position(),
AST::NameWithPosition { String::from_utf8("length"sv).release_value_but_fixme_should_propagate_errors(), invoking_node.function_position() }, AST::NameWithPosition { TRY(String::from_utf8("length"sv)), invoking_node.function_position() },
NonnullRefPtrVector<AST::Node> { Vector<NonnullRefPtr<AST::Node>> { NonnullRefPtrVector<AST::Node> { Vector<NonnullRefPtr<AST::Node>> {
static_cast<NonnullRefPtr<AST::Node>>(AST::make_ref_counted<AST::BarewordLiteral>(expr_node->position(), String::from_utf8(mode_name).release_value_but_fixme_should_propagate_errors())), static_cast<NonnullRefPtr<AST::Node>>(AST::make_ref_counted<AST::BarewordLiteral>(expr_node->position(), TRY(String::from_utf8(mode_name)))),
AST::make_ref_counted<AST::SyntheticNode>(expr_node->position(), NonnullRefPtr<AST::Value>(entry)), AST::make_ref_counted<AST::SyntheticNode>(expr_node->position(), NonnullRefPtr<AST::Value>(entry)),
} }, } },
expr_node->position())); expr_node->position()));
@ -100,7 +100,7 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
if (!value) if (!value)
return value_with_number(0); return value_with_number(0);
value = value->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); value = TRY(value->resolve_without_cast(this));
if (auto list = dynamic_cast<AST::ListValue*>(value.ptr())) { if (auto list = dynamic_cast<AST::ListValue*>(value.ptr())) {
if (across) if (across)
@ -109,7 +109,7 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
return value_with_number(list->values().size()); return value_with_number(list->values().size());
} }
auto list = value->resolve_as_list(this).release_value_but_fixme_should_propagate_errors(); auto list = TRY(value->resolve_as_list(this));
if (!across) if (!across)
return value_with_number(list.size()); return value_with_number(list.size());
@ -145,7 +145,7 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
if (!value) if (!value)
return value_with_number(0); return value_with_number(0);
value = value->resolve_without_cast(*this).release_value_but_fixme_should_propagate_errors(); value = TRY(value->resolve_without_cast(*this));
if (auto list = dynamic_cast<AST::ListValue*>(value.ptr())) { if (auto list = dynamic_cast<AST::ListValue*>(value.ptr())) {
if (!across) if (!across)
@ -165,7 +165,7 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
} }
// Evaluate the nodes and substitute with the lengths. // Evaluate the nodes and substitute with the lengths.
auto list = value->resolve_as_list(this).release_value_but_fixme_should_propagate_errors(); auto list = TRY(value->resolve_as_list(this));
if (!expr_node->is_list()) { if (!expr_node->is_list()) {
if (list.size() == 1) { if (list.size() == 1) {
@ -189,17 +189,17 @@ RefPtr<AST::Node> Shell::immediate_length_impl(AST::ImmediateExpression& invokin
} }
} }
RefPtr<AST::Node> Shell::immediate_length(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_length(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
return immediate_length_impl(invoking_node, arguments, false); return immediate_length_impl(invoking_node, arguments, false);
} }
RefPtr<AST::Node> Shell::immediate_length_across(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_length_across(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
return immediate_length_impl(invoking_node, arguments, true); return immediate_length_impl(invoking_node, arguments, true);
} }
RefPtr<AST::Node> Shell::immediate_regex_replace(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_regex_replace(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 3) { if (arguments.size() != 3) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 3 arguments to regex_replace", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 3 arguments to regex_replace", invoking_node.position());
@ -208,7 +208,7 @@ RefPtr<AST::Node> Shell::immediate_regex_replace(AST::ImmediateExpression& invok
auto pattern = const_cast<AST::Node&>(arguments[0]).run(this); auto pattern = const_cast<AST::Node&>(arguments[0]).run(this);
auto replacement = const_cast<AST::Node&>(arguments[1]).run(this); auto replacement = const_cast<AST::Node&>(arguments[1]).run(this);
auto value = const_cast<AST::Node&>(arguments[2]).run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments[2]).run(this)->resolve_without_cast(this));
if (!pattern->is_string()) { if (!pattern->is_string()) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected the regex_replace pattern to be a string", arguments[0].position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected the regex_replace pattern to be a string", arguments[0].position());
@ -225,16 +225,16 @@ RefPtr<AST::Node> Shell::immediate_regex_replace(AST::ImmediateExpression& invok
return nullptr; return nullptr;
} }
Regex<PosixExtendedParser> re { pattern->resolve_as_list(this).release_value_but_fixme_should_propagate_errors().first().to_deprecated_string() }; Regex<PosixExtendedParser> re { TRY(pattern->resolve_as_list(this)).first().to_deprecated_string() };
auto result = re.replace( auto result = re.replace(
value->resolve_as_list(this).release_value_but_fixme_should_propagate_errors()[0], TRY(value->resolve_as_list(this))[0],
replacement->resolve_as_list(this).release_value_but_fixme_should_propagate_errors()[0], TRY(replacement->resolve_as_list(this))[0],
PosixFlags::Global | PosixFlags::Multiline | PosixFlags::Unicode); PosixFlags::Global | PosixFlags::Multiline | PosixFlags::Unicode);
return AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), String::from_utf8(result).release_value_but_fixme_should_propagate_errors(), AST::StringLiteral::EnclosureType::None); return AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), TRY(String::from_utf8(result)), AST::StringLiteral::EnclosureType::None);
} }
RefPtr<AST::Node> Shell::immediate_remove_suffix(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_remove_suffix(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to remove_suffix", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to remove_suffix", invoking_node.position());
@ -242,23 +242,23 @@ RefPtr<AST::Node> Shell::immediate_remove_suffix(AST::ImmediateExpression& invok
} }
auto suffix = const_cast<AST::Node&>(arguments[0]).run(this); auto suffix = const_cast<AST::Node&>(arguments[0]).run(this);
auto value = const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this));
if (!suffix->is_string()) { if (!suffix->is_string()) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected the remove_suffix suffix string to be a string", arguments[0].position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected the remove_suffix suffix string to be a string", arguments[0].position());
return nullptr; return nullptr;
} }
auto suffix_str = suffix->resolve_as_list(this).release_value_but_fixme_should_propagate_errors()[0]; auto suffix_str = TRY(suffix->resolve_as_list(this))[0];
auto values = value->resolve_as_list(this).release_value_but_fixme_should_propagate_errors(); auto values = TRY(value->resolve_as_list(this));
Vector<NonnullRefPtr<AST::Node>> nodes; Vector<NonnullRefPtr<AST::Node>> nodes;
for (auto& value_str : values) { for (auto& value_str : values) {
String removed = String::from_utf8(value_str).release_value_but_fixme_should_propagate_errors(); String removed = TRY(String::from_utf8(value_str));
if (value_str.bytes_as_string_view().ends_with(suffix_str)) if (value_str.bytes_as_string_view().ends_with(suffix_str))
removed = removed.substring_from_byte_offset(0, value_str.bytes_as_string_view().length() - suffix_str.bytes_as_string_view().length()).release_value_but_fixme_should_propagate_errors(); removed = TRY(removed.substring_from_byte_offset(0, value_str.bytes_as_string_view().length() - suffix_str.bytes_as_string_view().length()));
nodes.append(AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), move(removed), AST::StringLiteral::EnclosureType::None)); nodes.append(AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), move(removed), AST::StringLiteral::EnclosureType::None));
} }
@ -266,7 +266,7 @@ RefPtr<AST::Node> Shell::immediate_remove_suffix(AST::ImmediateExpression& invok
return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(nodes)); return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(nodes));
} }
RefPtr<AST::Node> Shell::immediate_remove_prefix(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_remove_prefix(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to remove_prefix", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to remove_prefix", invoking_node.position());
@ -274,30 +274,30 @@ RefPtr<AST::Node> Shell::immediate_remove_prefix(AST::ImmediateExpression& invok
} }
auto prefix = const_cast<AST::Node&>(arguments[0]).run(this); auto prefix = const_cast<AST::Node&>(arguments[0]).run(this);
auto value = const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this));
if (!prefix->is_string()) { if (!prefix->is_string()) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected the remove_prefix prefix string to be a string", arguments[0].position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected the remove_prefix prefix string to be a string", arguments[0].position());
return nullptr; return nullptr;
} }
auto prefix_str = prefix->resolve_as_list(this).release_value_but_fixme_should_propagate_errors()[0]; auto prefix_str = TRY(prefix->resolve_as_list(this))[0];
auto values = value->resolve_as_list(this).release_value_but_fixme_should_propagate_errors(); auto values = TRY(value->resolve_as_list(this));
Vector<NonnullRefPtr<AST::Node>> nodes; Vector<NonnullRefPtr<AST::Node>> nodes;
for (auto& value_str : values) { for (auto& value_str : values) {
String removed = String::from_utf8(value_str).release_value_but_fixme_should_propagate_errors(); String removed = TRY(String::from_utf8(value_str));
if (value_str.bytes_as_string_view().starts_with(prefix_str)) if (value_str.bytes_as_string_view().starts_with(prefix_str))
removed = removed.substring_from_byte_offset(prefix_str.bytes_as_string_view().length()).release_value_but_fixme_should_propagate_errors(); removed = TRY(removed.substring_from_byte_offset(prefix_str.bytes_as_string_view().length()));
nodes.append(AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), move(removed), AST::StringLiteral::EnclosureType::None)); nodes.append(AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), move(removed), AST::StringLiteral::EnclosureType::None));
} }
return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(nodes)); return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(nodes));
} }
RefPtr<AST::Node> Shell::immediate_split(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_split(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to split", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to split", invoking_node.position());
@ -305,14 +305,14 @@ RefPtr<AST::Node> Shell::immediate_split(AST::ImmediateExpression& invoking_node
} }
auto delimiter = const_cast<AST::Node&>(arguments[0]).run(this); auto delimiter = const_cast<AST::Node&>(arguments[0]).run(this);
auto value = const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this));
if (!delimiter->is_string()) { if (!delimiter->is_string()) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected the split delimiter string to be a string", arguments[0].position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected the split delimiter string to be a string", arguments[0].position());
return nullptr; return nullptr;
} }
auto delimiter_str = delimiter->resolve_as_list(this).release_value_but_fixme_should_propagate_errors()[0]; auto delimiter_str = TRY(delimiter->resolve_as_list(this))[0];
auto transform = [&](auto const& values) { auto transform = [&](auto const& values) {
// Translate to a list of applications of `split <delimiter>` // Translate to a list of applications of `split <delimiter>`
@ -338,7 +338,7 @@ RefPtr<AST::Node> Shell::immediate_split(AST::ImmediateExpression& invoking_node
} }
// Otherwise, just resolve to a list and transform that. // Otherwise, just resolve to a list and transform that.
auto list = value->resolve_as_list(this).release_value_but_fixme_should_propagate_errors(); auto list = TRY(value->resolve_as_list(this));
if (!value->is_list()) { if (!value->is_list()) {
if (list.is_empty()) if (list.is_empty())
return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), NonnullRefPtrVector<AST::Node> {}); return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), NonnullRefPtrVector<AST::Node> {});
@ -349,14 +349,14 @@ RefPtr<AST::Node> Shell::immediate_split(AST::ImmediateExpression& invoking_node
StringBuilder builder; StringBuilder builder;
for (auto code_point : Utf8View { value }) { for (auto code_point : Utf8View { value }) {
builder.append_code_point(code_point); builder.append_code_point(code_point);
split_strings.append(builder.to_string().release_value_but_fixme_should_propagate_errors()); split_strings.append(TRY(builder.to_string()));
builder.clear(); builder.clear();
} }
} else { } else {
auto split = StringView { value }.split_view(delimiter_str, options.inline_exec_keep_empty_segments ? SplitBehavior::KeepEmpty : SplitBehavior::Nothing); auto split = StringView { value }.split_view(delimiter_str, options.inline_exec_keep_empty_segments ? SplitBehavior::KeepEmpty : SplitBehavior::Nothing);
split_strings.ensure_capacity(split.size()); split_strings.ensure_capacity(split.size());
for (auto& entry : split) for (auto& entry : split)
split_strings.append(String::from_utf8(entry).release_value_but_fixme_should_propagate_errors()); split_strings.append(TRY(String::from_utf8(entry)));
} }
return AST::make_ref_counted<AST::SyntheticNode>(invoking_node.position(), AST::make_ref_counted<AST::ListValue>(move(split_strings))); return AST::make_ref_counted<AST::SyntheticNode>(invoking_node.position(), AST::make_ref_counted<AST::ListValue>(move(split_strings)));
} }
@ -364,7 +364,7 @@ RefPtr<AST::Node> Shell::immediate_split(AST::ImmediateExpression& invoking_node
return transform(AST::make_ref_counted<AST::ListValue>(list)->values()); return transform(AST::make_ref_counted<AST::ListValue>(list)->values());
} }
RefPtr<AST::Node> Shell::immediate_concat_lists(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_concat_lists(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
NonnullRefPtrVector<AST::Node> result; NonnullRefPtrVector<AST::Node> result;
@ -372,12 +372,12 @@ RefPtr<AST::Node> Shell::immediate_concat_lists(AST::ImmediateExpression& invoki
if (auto* list = dynamic_cast<const AST::ListConcatenate*>(&argument)) { if (auto* list = dynamic_cast<const AST::ListConcatenate*>(&argument)) {
result.extend(list->list()); result.extend(list->list());
} else { } else {
auto list_of_values = const_cast<AST::Node&>(argument).run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); auto list_of_values = TRY(const_cast<AST::Node&>(argument).run(this)->resolve_without_cast(this));
if (auto* list = dynamic_cast<AST::ListValue*>(list_of_values.ptr())) { if (auto* list = dynamic_cast<AST::ListValue*>(list_of_values.ptr())) {
for (auto& entry : static_cast<Vector<NonnullRefPtr<AST::Value>>&>(list->values())) for (auto& entry : static_cast<Vector<NonnullRefPtr<AST::Value>>&>(list->values()))
result.append(AST::make_ref_counted<AST::SyntheticNode>(argument.position(), entry)); result.append(AST::make_ref_counted<AST::SyntheticNode>(argument.position(), entry));
} else { } else {
auto values = list_of_values->resolve_as_list(this).release_value_but_fixme_should_propagate_errors(); auto values = TRY(list_of_values->resolve_as_list(this));
for (auto& entry : values) for (auto& entry : values)
result.append(AST::make_ref_counted<AST::StringLiteral>(argument.position(), entry, AST::StringLiteral::EnclosureType::None)); result.append(AST::make_ref_counted<AST::StringLiteral>(argument.position(), entry, AST::StringLiteral::EnclosureType::None));
} }
@ -387,7 +387,7 @@ RefPtr<AST::Node> Shell::immediate_concat_lists(AST::ImmediateExpression& invoki
return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(result)); return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(result));
} }
RefPtr<AST::Node> Shell::immediate_filter_glob(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_filter_glob(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
// filter_glob string list // filter_glob string list
if (arguments.size() != 2) { if (arguments.size() != 2) {
@ -395,7 +395,7 @@ RefPtr<AST::Node> Shell::immediate_filter_glob(AST::ImmediateExpression& invokin
return nullptr; return nullptr;
} }
auto glob_list = const_cast<AST::Node&>(arguments[0]).run(*this)->resolve_as_list(*this).release_value_but_fixme_should_propagate_errors(); auto glob_list = TRY(const_cast<AST::Node&>(arguments[0]).run(*this)->resolve_as_list(*this));
if (glob_list.size() != 1) { if (glob_list.size() != 1) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected the <glob> argument to filter_glob to be a single string", arguments[0].position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected the <glob> argument to filter_glob to be a single string", arguments[0].position());
return nullptr; return nullptr;
@ -431,7 +431,7 @@ RefPtr<AST::Node> Shell::immediate_filter_glob(AST::ImmediateExpression& invokin
return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(result)); return AST::make_ref_counted<AST::ListConcatenate>(invoking_node.position(), move(result));
} }
RefPtr<AST::Node> Shell::immediate_join(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_join(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to join", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to join", invoking_node.position());
@ -444,166 +444,166 @@ RefPtr<AST::Node> Shell::immediate_join(AST::ImmediateExpression& invoking_node,
return nullptr; return nullptr;
} }
auto value = const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments[1]).run(this)->resolve_without_cast(this));
if (!value->is_list()) { if (!value->is_list()) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected the joined list to be a list", arguments[1].position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected the joined list to be a list", arguments[1].position());
return nullptr; return nullptr;
} }
auto delimiter_str = delimiter->resolve_as_list(this).release_value_but_fixme_should_propagate_errors()[0]; auto delimiter_str = TRY(delimiter->resolve_as_list(this))[0];
StringBuilder builder; StringBuilder builder;
builder.join(delimiter_str, value->resolve_as_list(*this).release_value_but_fixme_should_propagate_errors()); builder.join(delimiter_str, TRY(value->resolve_as_list(*this)));
return AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), builder.to_string().release_value_but_fixme_should_propagate_errors(), AST::StringLiteral::EnclosureType::None); return AST::make_ref_counted<AST::StringLiteral>(invoking_node.position(), TRY(builder.to_string()), AST::StringLiteral::EnclosureType::None);
} }
RefPtr<AST::Node> Shell::immediate_value_or_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_value_or_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to value_or_default", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to value_or_default", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (!local_variable_or(name, ""sv).is_empty()) if (!local_variable_or(name, ""sv).is_empty())
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
return arguments.last(); return arguments.last();
} }
RefPtr<AST::Node> Shell::immediate_assign_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_assign_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to assign_default", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to assign_default", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (!local_variable_or(name, ""sv).is_empty()) if (!local_variable_or(name, ""sv).is_empty())
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
auto value = const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_without_cast(*this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_without_cast(*this));
set_local_variable(name.to_deprecated_string(), value); set_local_variable(name.to_deprecated_string(), value);
return make_ref_counted<AST::SyntheticNode>(invoking_node.position(), value); return make_ref_counted<AST::SyntheticNode>(invoking_node.position(), value);
} }
RefPtr<AST::Node> Shell::immediate_error_if_empty(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_error_if_empty(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to error_if_empty", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to error_if_empty", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (!local_variable_or(name, ""sv).is_empty()) if (!local_variable_or(name, ""sv).is_empty())
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
auto error_value = const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto error_value = TRY(const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_as_string(*this));
if (error_value.is_empty()) if (error_value.is_empty())
error_value = String::formatted("Expected {} to be non-empty", name).release_value_but_fixme_should_propagate_errors(); error_value = TRY(String::formatted("Expected {} to be non-empty", name));
raise_error(ShellError::EvaluatedSyntaxError, error_value.bytes_as_string_view(), invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, error_value.bytes_as_string_view(), invoking_node.position());
return nullptr; return nullptr;
} }
RefPtr<AST::Node> Shell::immediate_null_or_alternative(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_null_or_alternative(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to null_or_alternative", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to null_or_alternative", invoking_node.position());
return nullptr; return nullptr;
} }
auto value = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_without_cast(*this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_without_cast(*this));
if ((value->is_string() && value->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors().is_empty()) || (value->is_list() && value->resolve_as_list(*this).release_value_but_fixme_should_propagate_errors().is_empty())) if ((value->is_string() && TRY(value->resolve_as_string(*this)).is_empty()) || (value->is_list() && TRY(value->resolve_as_list(*this)).is_empty()))
return make_ref_counted<AST::SyntheticNode>(invoking_node.position(), value); return make_ref_counted<AST::SyntheticNode>(invoking_node.position(), value);
return arguments.last(); return arguments.last();
} }
RefPtr<AST::Node> Shell::immediate_defined_value_or_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_defined_value_or_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to defined_value_or_default", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to defined_value_or_default", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (!find_frame_containing_local_variable(name)) if (!find_frame_containing_local_variable(name))
return arguments.last(); return arguments.last();
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
} }
RefPtr<AST::Node> Shell::immediate_assign_defined_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_assign_defined_default(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to assign_defined_default", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to assign_defined_default", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (find_frame_containing_local_variable(name)) if (find_frame_containing_local_variable(name))
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
auto value = const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_without_cast(*this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_without_cast(*this));
set_local_variable(name.to_deprecated_string(), value); set_local_variable(name.to_deprecated_string(), value);
return make_ref_counted<AST::SyntheticNode>(invoking_node.position(), value); return make_ref_counted<AST::SyntheticNode>(invoking_node.position(), value);
} }
RefPtr<AST::Node> Shell::immediate_error_if_unset(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_error_if_unset(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to error_if_unset", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to error_if_unset", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (find_frame_containing_local_variable(name)) if (find_frame_containing_local_variable(name))
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
auto error_value = const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto error_value = TRY(const_cast<AST::Node&>(arguments.last()).run(*this)->resolve_as_string(*this));
if (error_value.is_empty()) if (error_value.is_empty())
error_value = String::formatted("Expected {} to be set", name).release_value_but_fixme_should_propagate_errors(); error_value = TRY(String::formatted("Expected {} to be set", name));
raise_error(ShellError::EvaluatedSyntaxError, error_value.bytes_as_string_view(), invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, error_value.bytes_as_string_view(), invoking_node.position());
return nullptr; return nullptr;
} }
RefPtr<AST::Node> Shell::immediate_null_if_unset_or_alternative(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_null_if_unset_or_alternative(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 2) { if (arguments.size() != 2) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to null_if_unset_or_alternative", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 2 arguments to null_if_unset_or_alternative", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
if (!find_frame_containing_local_variable(name)) if (!find_frame_containing_local_variable(name))
return arguments.last(); return arguments.last();
return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); return make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
} }
RefPtr<AST::Node> Shell::immediate_reexpand(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_reexpand(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 1) { if (arguments.size() != 1) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 1 argument to reexpand", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 1 argument to reexpand", invoking_node.position());
return nullptr; return nullptr;
} }
auto value = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto value = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
return parse(value, m_is_interactive, false); return parse(value, m_is_interactive, false);
} }
RefPtr<AST::Node> Shell::immediate_length_of_variable(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::immediate_length_of_variable(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
if (arguments.size() != 1) { if (arguments.size() != 1) {
raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 1 argument to length_of_variable", invoking_node.position()); raise_error(ShellError::EvaluatedSyntaxError, "Expected exactly 1 argument to length_of_variable", invoking_node.position());
return nullptr; return nullptr;
} }
auto name = const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this).release_value_but_fixme_should_propagate_errors(); auto name = TRY(const_cast<AST::Node&>(arguments.first()).run(*this)->resolve_as_string(*this));
auto variable = make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name); auto variable = make_ref_counted<AST::SimpleVariable>(invoking_node.position(), name);
return immediate_length_impl( return immediate_length_impl(
@ -612,7 +612,7 @@ RefPtr<AST::Node> Shell::immediate_length_of_variable(AST::ImmediateExpression&
false); false);
} }
RefPtr<AST::Node> Shell::run_immediate_function(StringView str, AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments) ErrorOr<RefPtr<AST::Node>> Shell::run_immediate_function(StringView str, AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const& arguments)
{ {
#define __ENUMERATE_SHELL_IMMEDIATE_FUNCTION(name) \ #define __ENUMERATE_SHELL_IMMEDIATE_FUNCTION(name) \
if (str == #name) \ if (str == #name) \

6
Userland/Shell/Shell.h
View file

@ -156,7 +156,7 @@ public:
bool run_file(DeprecatedString const&, bool explicitly_invoked = true); bool run_file(DeprecatedString const&, bool explicitly_invoked = true);
ErrorOr<bool> run_builtin(const AST::Command&, NonnullRefPtrVector<AST::Rewiring> const&, int& retval); ErrorOr<bool> run_builtin(const AST::Command&, NonnullRefPtrVector<AST::Rewiring> const&, int& retval);
bool has_builtin(StringView) const; bool has_builtin(StringView) const;
RefPtr<AST::Node> run_immediate_function(StringView name, AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const&); ErrorOr<RefPtr<AST::Node>> run_immediate_function(StringView name, AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const&);
static bool has_immediate_function(StringView); static bool has_immediate_function(StringView);
void block_on_job(RefPtr<Job>); void block_on_job(RefPtr<Job>);
void block_on_pipeline(RefPtr<AST::Pipeline>); void block_on_pipeline(RefPtr<AST::Pipeline>);
@ -423,13 +423,13 @@ private:
virtual void custom_event(Core::CustomEvent&) override; virtual void custom_event(Core::CustomEvent&) override;
#define __ENUMERATE_SHELL_IMMEDIATE_FUNCTION(name) \ #define __ENUMERATE_SHELL_IMMEDIATE_FUNCTION(name) \
RefPtr<AST::Node> immediate_##name(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const&); ErrorOr<RefPtr<AST::Node>> immediate_##name(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const&);
ENUMERATE_SHELL_IMMEDIATE_FUNCTIONS(); ENUMERATE_SHELL_IMMEDIATE_FUNCTIONS();
#undef __ENUMERATE_SHELL_IMMEDIATE_FUNCTION #undef __ENUMERATE_SHELL_IMMEDIATE_FUNCTION
RefPtr<AST::Node> immediate_length_impl(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const&, bool across); ErrorOr<RefPtr<AST::Node>> immediate_length_impl(AST::ImmediateExpression& invoking_node, NonnullRefPtrVector<AST::Node> const&, bool across);
#define __ENUMERATE_SHELL_BUILTIN(builtin) \ #define __ENUMERATE_SHELL_BUILTIN(builtin) \
ErrorOr<int> builtin_##builtin(Main::Arguments); ErrorOr<int> builtin_##builtin(Main::Arguments);