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LibJS: Make Parser::Error a standalone ParserError class

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This allows us to forward declare it and reduce the number of things
that need to include Parser.h.
This commit is contained in:
Andreas Kling 2022-11-23 12:39:23 +01:00 • committed by Linus Groh
parent e0916dbb35
commit e6331031c4
11 changed files with 74 additions and 36 deletions
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33
Userland/Libraries/LibJS/Parser.h
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@ -13,6 +13,7 @@
#include <AK/StringBuilder.h>
#include <LibJS/AST.h>
#include <LibJS/Lexer.h>
#include <LibJS/ParserError.h>
#include <LibJS/Runtime/FunctionConstructor.h>
#include <LibJS/SourceRange.h>
#include <LibJS/Token.h>
@ -173,36 +174,8 @@ public:
Vector<CallExpression::Argument> parse_arguments();
struct Error {
String message;
Optional<Position> position;
String to_string() const
{
if (!position.has_value())
return message;
return String::formatted("{} (line: {}, column: {})", message, position.value().line, position.value().column);
}
String source_location_hint(StringView source, char const spacer = ' ', char const indicator = '^') const
{
if (!position.has_value())
return {};
// We need to modify the source to match what the lexer considers one line - normalizing
// line terminators to \n is easier than splitting using all different LT characters.
String source_string = source.replace("\r\n"sv, "\n"sv, ReplaceMode::All).replace("\r"sv, "\n"sv, ReplaceMode::All).replace(LINE_SEPARATOR_STRING, "\n"sv, ReplaceMode::All).replace(PARAGRAPH_SEPARATOR_STRING, "\n"sv, ReplaceMode::All);
StringBuilder builder;
builder.append(source_string.split_view('\n', SplitBehavior::KeepEmpty)[position.value().line - 1]);
builder.append('\n');
for (size_t i = 0; i < position.value().column - 1; ++i)
builder.append(spacer);
builder.append(indicator);
return builder.build();
}
};
bool has_errors() const { return m_state.errors.size(); }
Vector<Error> const& errors() const { return m_state.errors; }
Vector<ParserError> const& errors() const { return m_state.errors; }
void print_errors(bool print_hint = true) const
{
for (auto& error : m_state.errors) {
@ -305,7 +278,7 @@ private:
struct ParserState {
Lexer lexer;
Token current_token;
Vector<Error> errors;
Vector<ParserError> errors;
ScopePusher* current_scope_pusher { nullptr };
HashMap<StringView, Optional<Position>> labels_in_scope;