20065764942

Committed 09 Dec 2025 01:49PM UTC coverage: 90.564% (+0.008%) from 90.556%

Build # 20065764942

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SuperFola

Commit Message

chore(tests): adding IR generation tests for arg attributes

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94.32

/src/arkscript/Formatter.cpp

#include <Ark/Constants.hpp>
#include <CLI/Formatter.hpp>

#include <fmt/core.h>
#include <fmt/color.h>

#include <Ark/Utils/Files.hpp>
#include <Ark/Error/Exceptions.hpp>
#include <Ark/Error/Diagnostics.hpp>
#include <Ark/Compiler/Common.hpp>

using namespace Ark;
using namespace Ark::internal;

Formatter::Formatter(const bool dry_run) :
    m_dry_run(dry_run), m_parser(/* debug= */ 0, ParserMode::Raw), m_updated(false)
{}

Formatter::Formatter(std::string filename, const bool dry_run) :
    m_filename(std::move(filename)), m_dry_run(dry_run), m_parser(/* debug= */ 0, ParserMode::Raw), m_updated(false)
{}

void Formatter::run()
{
    try
    {
        const std::string code = Utils::readFile(m_filename);
        m_parser.process(m_filename, code);
        processAst(m_parser.ast());
        warnIfCommentsWereRemoved(code, ARK_NO_NAME_FILE);

        m_updated = code != m_output;
    }
    catch (const CodeError& e)
    {
        Diagnostics::generate(e);
    }
}

void Formatter::runWithString(const std::string& code)
{
    try
    {
        m_parser.process(ARK_NO_NAME_FILE, code);
        processAst(m_parser.ast());
        warnIfCommentsWereRemoved(code, ARK_NO_NAME_FILE);

        m_updated = code != m_output;
    }
    catch (const CodeError& e)
    {
        Diagnostics::generate(e);
    }
}

const std::string& Formatter::output() const
{
    return m_output;
}

bool Formatter::codeModified() const
{
    return m_updated;
}

void Formatter::processAst(const Node& ast)
{
    // remove useless surrounding begin (generated by the parser)
    if (isBeginBlock(ast))
    {
        for (std::size_t i = 1, end = ast.constList().size(); i < end; ++i)
        {
            const Node node = ast.constList()[i];
            if (shouldAddNewLineBetweenNodes(ast, i) && !m_output.empty())
                m_output += "\n";
            m_output += format(node, 0, false) + "\n";
        }
    }
    else
        m_output = format(ast, 0, false);

    if (!m_dry_run)
    {
        std::ofstream stream(m_filename);
        stream << m_output;
    }
}

void Formatter::warnIfCommentsWereRemoved(const std::string& original_code, const std::string& filename)
{
    const std::size_t before_count = std::ranges::count(original_code, '#');
    const std::size_t after_count = std::ranges::count(m_output, '#');

    if (before_count != after_count)
    {
        fmt::println(
            "{}: one or more comments from the original source code seem to have been {} by mistake while formatting {}",
            fmt::styled("Warning", fmt::fg(fmt::color::dark_orange)),
            before_count > after_count ? "removed" : "duplicated",
            filename != ARK_NO_NAME_FILE ? filename : "file");
        fmt::println("Please fill an issue on GitHub: https://github.com/ArkScript-lang/Ark");
    }
}

bool Formatter::isListStartingWithKeyword(const Node& node, const Keyword keyword)
{
    return node.isListLike() && !node.constList().empty() && node.constList()[0].nodeType() == NodeType::Keyword && node.constList()[0].keyword() == keyword;
}

bool Formatter::isBeginBlock(const Node& node)
{
    return isListStartingWithKeyword(node, Keyword::Begin);
}

bool Formatter::isFuncDef(const Node& node)
{
    return isListStartingWithKeyword(node, Keyword::Fun);
}

bool Formatter::isFuncCall(const Node& node)
{
    return node.isListLike() && !node.constList().empty() && node.constList()[0].nodeType() == NodeType::Symbol;
}

std::size_t Formatter::lineOfLastNodeIn(const Node& node)
{
    if (node.isListLike() && !node.constList().empty())
    {
        const std::size_t child_line = lineOfLastNodeIn(node.constList().back());
        if (child_line < node.position().start.line)
            return node.position().start.line;
        return child_line;
    }
    return node.position().start.line;
}

bool Formatter::shouldSplitOnNewline(const Node& node)
{
    const std::string formatted = format(node, 0, false);
    const std::string::size_type sz = formatted.find_first_of('\n');

    const bool is_long_line = !((sz < FormatterConfig::LongLineLength || (sz == std::string::npos && formatted.size() < FormatterConfig::LongLineLength)));
    if (node.comment().empty() && (isBeginBlock(node) || isFuncCall(node)))
        return false;
    if (is_long_line || (node.isListLike() && node.constList().size() > 1) || !node.comment().empty())
        return true;
    return false;
}

bool Formatter::shouldAddNewLineBetweenNodes(const Node& node, const std::size_t at)
{
    if (at <= 1)
        return false;

    const auto& list = node.constList();
    const std::size_t previous_line = lineOfLastNodeIn(list[at - 1]);

    const auto& child = list[at];

    // If we have a node before the current one,
    // and the line count between the two nodes is more than 1,
    // maybe we should add a new line to preserve user spacing.
    // However, if the current node has a comment, do not add a new line, this is causing the spacing.
    if (child.position().start.line - previous_line > 1 && child.comment().empty())
        return true;
    // If we do have a comment but the spacing is more than 2,
    // then add a newline to preserve user spacing.
    if (child.position().start.line - previous_line > 2 && !child.comment().empty())
        return true;
    return false;
}

std::string Formatter::format(const Node& node, std::size_t indent, bool after_newline)
{
    std::string result;
    if (!node.comment().empty())
    {
        result += formatComment(node.comment(), indent);
        after_newline = true;
    }
    if (after_newline)
        result += prefix(indent);

    switch (node.nodeType())
    {
        case NodeType::Symbol:
            result += node.string();
            break;
        case NodeType::MutArg:
            result += fmt::format("(mut {})", node.string());
            break;
        case NodeType::RefArg:
            result += fmt::format("(ref {})", node.string());
            break;
        case NodeType::Capture:
            result += "&" + node.string();
            break;
        case NodeType::Keyword:
            result += std::string(keywords[static_cast<std::size_t>(node.keyword())]);
            break;
        case NodeType::String:
            result += fmt::format("\"{}\"", node.string());
            break;
        case NodeType::Number:
            result += fmt::format("{}", node.number());
            break;
        case NodeType::List:
            result += formatBlock(node, indent, after_newline);
            break;
        case NodeType::Spread:
            result += fmt::format("...{}", node.string());
            break;
        case NodeType::Field:
        {
            std::string field = format(node.constList()[0], indent, false);
            for (std::size_t i = 1, end = node.constList().size(); i < end; ++i)
                field += "." + format(node.constList()[i], indent, false);
            result += field;
            break;
        }
        case NodeType::Macro:
            result += formatMacro(node, indent);
            break;
        // not handling Namespace nor Unused node types as those can not be generated by the parser
        case NodeType::Namespace:
            [[fallthrough]];
        case NodeType::Unused:
            break;
    }

    if (!node.commentAfter().empty())
        result += " " + formatComment(node.commentAfter(), /* indent= */ 0);

    return result;
}

std::string Formatter::formatComment(const std::string& comment, const std::size_t indent) const
{
    std::string result = prefix(indent);
    for (std::size_t i = 0, end = comment.size(); i < end; ++i)
    {
        result += comment[i];
        if (comment[i] == '\n' && i != end - 1)
            result += prefix(indent);
    }

    return result;
}

std::string Formatter::formatBlock(const Node& node, const std::size_t indent, const bool after_newline)
{
    if (node.constList().empty())
        return "()";

    const Node first = node.constList().front();
    if (first.nodeType() == NodeType::Keyword)
    {
        switch (first.keyword())
        {
            case Keyword::Fun:
                return formatFunction(node, indent);
            case Keyword::Let:
                [[fallthrough]];
            case Keyword::Mut:
                [[fallthrough]];
            case Keyword::Set:
                return formatVariable(node, indent);
            case Keyword::If:
                return formatCondition(node, indent);
            case Keyword::While:
                return formatLoop(node, indent);
            case Keyword::Begin:
                return formatBegin(node, indent, after_newline);
            case Keyword::Import:
                return formatImport(node, indent);
            case Keyword::Del:
                return formatDel(node, indent);
        }
        // HACK: should never reach, but the compiler insists that the function doesn't return in every code path
        return "";
    }
    return formatCall(node, indent);
}

std::string Formatter::formatFunction(const Node& node, const std::size_t indent)
{
    const Node args_node = node.constList()[1];
    const Node body_node = node.constList()[2];

    std::string formatted_args;

    if (!args_node.comment().empty())
    {
        formatted_args += "\n";
        formatted_args += formatComment(args_node.comment(), indent + 1);
        formatted_args += prefix(indent + 1);
    }
    else
        formatted_args += " ";

    if (args_node.isListLike())
    {
        bool comment_in_args = false;
        std::string args;
        const bool split = shouldSplitOnNewline(args_node);

        for (std::size_t i = 0, end = args_node.constList().size(); i < end; ++i)
        {
            const Node arg_i = args_node.constList()[i];
            if (!arg_i.comment().empty())
                comment_in_args = true;

            args += format(arg_i, indent + ((comment_in_args || split) ? 1 : 0), i > 0 && (comment_in_args || split));
            if (i != end - 1)
                args += (comment_in_args || split) ? '\n' : ' ';
        }

        formatted_args += fmt::format("({}{})", (comment_in_args ? "\n" : ""), args);
    }
    else
        formatted_args += format(args_node, indent, false);

    if (!shouldSplitOnNewline(body_node) && args_node.comment().empty())
        return fmt::format("(fun{} {})", formatted_args, format(body_node, indent + 1, false));
    return fmt::format("(fun{}\n{})", formatted_args, format(body_node, indent + 1, true));
}

std::string Formatter::formatVariable(const Node& node, const std::size_t indent)
{
    const auto keyword = std::string(keywords[static_cast<std::size_t>(node.constList()[0].keyword())]);

    const Node body_node = node.constList()[2];
    const std::string formatted_bind = format(node.constList()[1], indent, false);

    // we don't want to add another indentation level here, because it would result in a (let a (fun ()\n{indent+=4}...))
    if (isFuncDef(body_node) || !shouldSplitOnNewline(body_node))
        return fmt::format("({} {} {})", keyword, formatted_bind, format(body_node, indent, false));
    return fmt::format("({} {}\n{})", keyword, formatted_bind, format(body_node, indent + 1, true));
}

std::string Formatter::formatCondition(const Node& node, const std::size_t indent, const bool is_macro)
{
    const Node cond_node = node.constList()[1];
    const Node then_node = node.constList()[2];

    bool cond_on_newline = false;
    std::string formatted_cond = format(cond_node, indent + 1, false);
    if (formatted_cond.find('\n') != std::string::npos)
        cond_on_newline = true;

    std::string if_cond_formatted = fmt::format(
        "({}if{}{}",
        is_macro ? "$" : "",
        cond_on_newline ? "\n" : " ",
        formatted_cond);

    const bool split_then_newline = shouldSplitOnNewline(then_node);

    // (if cond then)
    if (node.constList().size() == 3)
    {
        if (cond_on_newline || split_then_newline)
            return fmt::format("{}\n{})", if_cond_formatted, format(then_node, indent + 1, true));
        return fmt::format("{} {})", if_cond_formatted, format(then_node, indent + 1, false));
    }
    // (if cond then else)
    return fmt::format(
        "{}\n{}\n{}{})",
        if_cond_formatted,
        format(then_node, indent + 1, true),
        format(node.constList()[3], indent + 1, true),
        node.constList()[3].commentAfter().empty() ? "" : ("\n" + prefix(indent)));
}

std::string Formatter::formatLoop(const Node& node, const std::size_t indent)
{
    const Node cond_node = node.constList()[1];
    const Node body_node = node.constList()[2];

    bool cond_on_newline = false;
    std::string formatted_cond = format(cond_node, indent + 1, false);
    if (formatted_cond.find('\n') != std::string::npos)
        cond_on_newline = true;

    if (cond_on_newline || shouldSplitOnNewline(body_node))
        return fmt::format(
            "(while{}{}\n{})",
            cond_on_newline ? "\n" : " ",
            formatted_cond,
            format(body_node, indent + 1, true));
    return fmt::format(
        "(while {} {})",
        formatted_cond,
        format(body_node, indent + 1, false));
}

std::string Formatter::formatBegin(const Node& node, const std::size_t indent, const bool after_newline)
{
    // only the keyword begin is present
    if (node.constList().size() == 1)
        return "{}";

    // after a new line, we need to increment our indentation level
    // if the block is a top level one, we also need to increment indentation level
    const std::size_t inner_indentation = indent + (after_newline ? 1 : 0) + (indent == 0 ? 1 : 0);

    std::string result = "{\n";
    // skip begin keyword
    for (std::size_t i = 1, end = node.constList().size(); i < end; ++i)
    {
        const Node child = node.constList()[i];
        // we want to preserve the node grouping by the user, but remove useless duplicate new line
        // but that shouldn't apply to the first node of the block
        if (shouldAddNewLineBetweenNodes(node, i) && i > 1)
            result += "\n";

        result += format(child, inner_indentation, true);
        if (i != end - 1)
            result += "\n";
    }

    // if the last node has a comment, add a new line
    if (!node.constList().empty() && !node.constList().back().commentAfter().empty())
        result += "\n" + prefix(indent) + "}";
    else
        result += " }";
    return result;
}

std::string Formatter::formatImport(const Node& node, const std::size_t indent)
{
    const Node package_node = node.constList()[1];
    std::string package;

    if (!package_node.comment().empty())
        package += "\n" + formatComment(package_node.comment(), indent + 1) + prefix(indent + 1);
    else
        package += " ";

    for (std::size_t i = 0, end = package_node.constList().size(); i < end; ++i)
    {
        package += format(package_node.constList()[i], indent + 1, false);
        if (i != end - 1)
            package += ".";
    }

    const Node symbols = node.constList()[2];
    if (symbols.nodeType() == NodeType::Symbol && symbols.string() == "*")
        package += ":*";
    else  // symbols is a list
    {
        if (const auto& sym_list = symbols.constList(); !sym_list.empty())
        {
            const bool comment_after_last = !sym_list.back().commentAfter().empty();

            for (const auto& sym : sym_list)
            {
                if (sym.comment().empty())
                {
                    if (comment_after_last)
                        package += "\n" + prefix(indent + 1) + ":" + sym.string();
                    else
                        package += " :" + sym.string();
                }
                else
                    package += "\n" + formatComment(sym.comment(), indent + 1) + prefix(indent + 1) + ":" + sym.string();
            }

            if (comment_after_last)
            {
                package += " " + formatComment(sym_list.back().commentAfter(), /* indent= */ 0);
                package += "\n" + prefix(indent + 1);
            }
        }
    }

    return fmt::format("(import{})", package);
}

std::string Formatter::formatDel(const Node& node, const std::size_t indent)
{
    std::string formatted_sym = format(node.constList()[1], indent + 1, false);
    if (formatted_sym.find('\n') != std::string::npos)
        return fmt::format("(del\n{})", formatted_sym);
    return fmt::format("(del {})", formatted_sym);
}

std::string Formatter::formatCall(const Node& node, const std::size_t indent)
{
    bool is_list = false;
    bool is_dict = false;
    bool is_multiline = false;

    if (!node.constList().empty() && node.constList().front().nodeType() == NodeType::Symbol)
    {
        if (node.constList().front().string() == "list")
            is_list = true;
        else if (node.constList().front().string() == "dict")
            is_dict = true;
    }

    std::vector<std::string> formatted_args;
    for (std::size_t i = 1, end = node.constList().size(); i < end; ++i)
    {
        formatted_args.push_back(format(node.constList()[i], indent, false));
        // if we have at least one argument taking multiple lines, split them all on their own line
        if (formatted_args.back().find('\n') != std::string::npos || !node.constList()[i].commentAfter().empty())
            is_multiline = true;
    }

    std::string result = is_list ? "[" : ("(" + format(node.constList()[0], indent, false));
    for (std::size_t i = 0, end = formatted_args.size(); i < end; ++i)
    {
        const std::string& formatted_node = formatted_args[i];
        if (is_dict)
        {
            if (i % 2 == 0 && formatted_args.size() > 2)  // one pair per line if we have at least 2 key-value pairs
                result += "\n" + format(node.constList()[i + 1], indent + 1, true);
            else
                result += " " + formatted_node;
        }
        else if (is_multiline)
            result += "\n" + format(node.constList()[i + 1], indent + 1, true);
        else if (is_list && i == 0)
            result += formatted_node;
        else  // put all arguments on the same line
            result += " " + formatted_node;
    }
    if (!node.constList().back().commentAfter().empty())
        result += "\n" + prefix(indent);

    result += is_list ? "]" : ")";
    return result;
}

std::string Formatter::formatMacro(const Node& node, const std::size_t indent)
{
    if (isListStartingWithKeyword(node, Keyword::If))
        return formatCondition(node, indent, /* is_macro= */ true);

    std::string result = "(macro ";
    bool after_newline = false;

    for (std::size_t i = 0, end = node.constList().size(); i < end; ++i)
    {
        result += format(node.constList()[i], indent + 1, after_newline);
        after_newline = false;

        if (!node.constList()[i].commentAfter().empty())
        {
            result += "\n";
            after_newline = true;
        }
        else if (i != end - 1)
            result += " ";
    }

    return result + ")";
}

1	#include <Ark/Constants.hpp>
2	#include <CLI/Formatter.hpp>
3
4	#include <fmt/core.h>
5	#include <fmt/color.h>
6
7	#include <Ark/Utils/Files.hpp>
8	#include <Ark/Error/Exceptions.hpp>
9	#include <Ark/Error/Diagnostics.hpp>
10	#include <Ark/Compiler/Common.hpp>
11
12	using namespace Ark;
13	using namespace Ark::internal;
14
15	Formatter::Formatter(const bool dry_run) :	50✔
16	m_dry_run(dry_run), m_parser(/* debug= */ 0, ParserMode::Raw), m_updated(false)	25✔
17	{}	50✔
18
19	Formatter::Formatter(std::string filename, const bool dry_run) :	50✔
20	m_filename(std::move(filename)), m_dry_run(dry_run), m_parser(/* debug= */ 0, ParserMode::Raw), m_updated(false)	25✔
21	{}	50✔
22
23	void Formatter::run()	25✔
24	{	25✔
25	try
26	{
27	const std::string code = Utils::readFile(m_filename);	25✔
28	m_parser.process(m_filename, code);	25✔
29	processAst(m_parser.ast());	25✔
30	warnIfCommentsWereRemoved(code, ARK_NO_NAME_FILE);	25✔
31
32	m_updated = code != m_output;	25✔
33	}	25✔
34	catch (const CodeError& e)
35	{
36	Diagnostics::generate(e);	×
37	}	25✔
38	}	25✔
39
40	void Formatter::runWithString(const std::string& code)	25✔
41	{	25✔
42	try
43	{
44	m_parser.process(ARK_NO_NAME_FILE, code);	25✔
45	processAst(m_parser.ast());	25✔
46	warnIfCommentsWereRemoved(code, ARK_NO_NAME_FILE);	25✔
47
48	m_updated = code != m_output;	25✔
49	}	25✔
50	catch (const CodeError& e)
51	{
52	Diagnostics::generate(e);	×
53	}	25✔
54	}	25✔
55
56	const std::string& Formatter::output() const	50✔
57	{	50✔
58	return m_output;	50✔
59	}
60
61	bool Formatter::codeModified() const	×
62	{	×
63	return m_updated;	×
64	}
65
66	void Formatter::processAst(const Node& ast)	50✔
67	{	50✔
68	// remove useless surrounding begin (generated by the parser)
69	if (isBeginBlock(ast))	50✔
70	{
71	for (std::size_t i = 1, end = ast.constList().size(); i < end; ++i)	198✔
72	{
73	const Node node = ast.constList()[i];	148✔
74	if (shouldAddNewLineBetweenNodes(ast, i) && !m_output.empty())	148✔
75	m_output += "\n";	22✔
76	m_output += format(node, 0, false) + "\n";	148✔
77	}	148✔
78	}	50✔
79	else
80	m_output = format(ast, 0, false);	×
81
82	if (!m_dry_run)	50✔
83	{
84	std::ofstream stream(m_filename);	×
85	stream << m_output;	×
86	}	×
87	}	50✔
88
89	void Formatter::warnIfCommentsWereRemoved(const std::string& original_code, const std::string& filename)	50✔
90	{	50✔
91	const std::size_t before_count = std::ranges::count(original_code, '#');	50✔
92	const std::size_t after_count = std::ranges::count(m_output, '#');	50✔
93
94	if (before_count != after_count)	50✔
95	{
96	fmt::println(	×
97	"{}: one or more comments from the original source code seem to have been {} by mistake while formatting {}",	×
98	fmt::styled("Warning", fmt::fg(fmt::color::dark_orange)),	×
99	before_count > after_count ? "removed" : "duplicated",	×
100	filename != ARK_NO_NAME_FILE ? filename : "file");	×
101	fmt::println("Please fill an issue on GitHub: https://github.com/ArkScript-lang/Ark");	×
102	}	×
103	}	50✔
104
105	bool Formatter::isListStartingWithKeyword(const Node& node, const Keyword keyword)	318✔
106	{	318✔
107	return node.isListLike() && !node.constList().empty() && node.constList()[0].nodeType() == NodeType::Keyword && node.constList()[0].keyword() == keyword;	318✔
108	}
109
110	bool Formatter::isBeginBlock(const Node& node)	226✔
111	{	226✔
112	return isListStartingWithKeyword(node, Keyword::Begin);	226✔
113	}
114
115	bool Formatter::isFuncDef(const Node& node)	70✔
116	{	70✔
117	return isListStartingWithKeyword(node, Keyword::Fun);	70✔
118	}
119
120	bool Formatter::isFuncCall(const Node& node)	152✔
121	{	152✔
122	return node.isListLike() && !node.constList().empty() && node.constList()[0].nodeType() == NodeType::Symbol;	152✔
123	}
124
125	std::size_t Formatter::lineOfLastNodeIn(const Node& node)	350✔
126	{	350✔
127	if (node.isListLike() && !node.constList().empty())	350✔
128	{
129	const std::size_t child_line = lineOfLastNodeIn(node.constList().back());	204✔
130	if (child_line < node.position().start.line)	204✔
131	return node.position().start.line;	2✔
132	return child_line;	202✔
133	}	204✔
134	return node.position().start.line;	146✔
135	}	350✔
136
137	bool Formatter::shouldSplitOnNewline(const Node& node)	186✔
138	{	186✔
139	const std::string formatted = format(node, 0, false);	186✔
140	const std::string::size_type sz = formatted.find_first_of('\n');	186✔
141
142	const bool is_long_line = !((sz < FormatterConfig::LongLineLength \|\| (sz == std::string::npos && formatted.size() < FormatterConfig::LongLineLength)));	186✔
143	if (node.comment().empty() && (isBeginBlock(node) \|\| isFuncCall(node)))	186✔
144	return false;	68✔
145	if (is_long_line \|\| (node.isListLike() && node.constList().size() > 1) \|\| !node.comment().empty())	118✔
146	return true;	26✔
147	return false;	92✔
148	}	186✔
149
150	bool Formatter::shouldAddNewLineBetweenNodes(const Node& node, const std::size_t at)	248✔
151	{	248✔
152	if (at <= 1)	248✔
153	return false;	102✔
154
155	const auto& list = node.constList();	146✔
156	const std::size_t previous_line = lineOfLastNodeIn(list[at - 1]);	146✔
157
158	const auto& child = list[at];	146✔
159
160	// If we have a node before the current one,
161	// and the line count between the two nodes is more than 1,
162	// maybe we should add a new line to preserve user spacing.
163	// However, if the current node has a comment, do not add a new line, this is causing the spacing.
164	if (child.position().start.line - previous_line > 1 && child.comment().empty())	146✔
165	return true;	20✔
166	// If we do have a comment but the spacing is more than 2,
167	// then add a newline to preserve user spacing.
168	if (child.position().start.line - previous_line > 2 && !child.comment().empty())	126✔
169	return true;	2✔
170	return false;	124✔
171	}	248✔
172
173	std::string Formatter::format(const Node& node, std::size_t indent, bool after_newline)	1,642✔
174	{	1,642✔
175	std::string result;	1,642✔
176	if (!node.comment().empty())	1,642✔
177	{
178	result += formatComment(node.comment(), indent);	76✔
179	after_newline = true;	76✔
180	}	76✔
181	if (after_newline)	1,642✔
182	result += prefix(indent);	296✔
183
184	switch (node.nodeType())	1,642✔
185	{	734✔
186	case NodeType::Symbol:
187	result += node.string();	734✔
188	break;	738✔
189	case NodeType::MutArg:
190	result += fmt::format("(mut {})", node.string());	4✔
191	break;	10✔
192	case NodeType::RefArg:
193	result += fmt::format("(ref {})", node.string());	6✔
194	break;	90✔
195	case NodeType::Capture:
196	result += "&" + node.string();	84✔
197	break;	84✔
198	case NodeType::Keyword:
199	result += std::string(keywords[static_cast<std::size_t>(node.keyword())]);	×
200	break;	70✔
201	case NodeType::String:
202	result += fmt::format("\"{}\"", node.string());	70✔
203	break;	254✔
204	case NodeType::Number:
205	result += fmt::format("{}", node.number());	184✔
206	break;	690✔
207	case NodeType::List:
208	result += formatBlock(node, indent, after_newline);	506✔
209	break;	520✔
210	case NodeType::Spread:
211	result += fmt::format("...{}", node.string());	14✔
212	break;	32✔
213	case NodeType::Field:
214	{
215	std::string field = format(node.constList()[0], indent, false);	18✔
216	for (std::size_t i = 1, end = node.constList().size(); i < end; ++i)	62✔
217	field += "." + format(node.constList()[i], indent, false);	44✔
218	result += field;	18✔
219	break;
220	}	40✔
221	case NodeType::Macro:
222	result += formatMacro(node, indent);	22✔
223	break;	22✔
224	// not handling Namespace nor Unused node types as those can not be generated by the parser
225	case NodeType::Namespace:
226	[[fallthrough]];
227	case NodeType::Unused:
228	break;	×
229	}	1,642✔
230
231	if (!node.commentAfter().empty())	1,642✔
232	result += " " + formatComment(node.commentAfter(), /* indent= */ 0);	42✔
233
234	return result;	1,642✔
235	}	1,642✔
236
237	std::string Formatter::formatComment(const std::string& comment, const std::size_t indent) const	130✔
238	{	130✔
239	std::string result = prefix(indent);	130✔
240	for (std::size_t i = 0, end = comment.size(); i < end; ++i)	1,872✔
241	{
242	result += comment[i];	1,742✔
243	if (comment[i] == '\n' && i != end - 1)	1,742✔
244	result += prefix(indent);	6✔
245	}	1,742✔
246
247	return result;	130✔
248	}	130✔
249
250	std::string Formatter::formatBlock(const Node& node, const std::size_t indent, const bool after_newline)	506✔
251	{	506✔
252	if (node.constList().empty())	506✔
253	return "()";	30✔
254
255	const Node first = node.constList().front();	476✔
256	if (first.nodeType() == NodeType::Keyword)	476✔
257	{
258	switch (first.keyword())	240✔
259	{	34✔
260	case Keyword::Fun:
261	return formatFunction(node, indent);	104✔
262	case Keyword::Let:
263	[[fallthrough]];
264	case Keyword::Mut:
265	[[fallthrough]];
266	case Keyword::Set:
267	return formatVariable(node, indent);	112✔
268	case Keyword::If:
269	return formatCondition(node, indent);	52✔
270	case Keyword::While:
271	return formatLoop(node, indent);	70✔
272	case Keyword::Begin:
273	return formatBegin(node, indent, after_newline);	80✔
274	case Keyword::Import:
275	return formatImport(node, indent);	24✔
276	case Keyword::Del:
277	return formatDel(node, indent);	4✔
278	}	×
279	// HACK: should never reach, but the compiler insists that the function doesn't return in every code path
280	return "";	×
281	}
282	return formatCall(node, indent);	236✔
283	}	506✔
284
285	std::string Formatter::formatFunction(const Node& node, const std::size_t indent)	34✔
286	{	34✔
287	const Node args_node = node.constList()[1];	34✔
288	const Node body_node = node.constList()[2];	34✔
289
290	std::string formatted_args;	34✔
291
292	if (!args_node.comment().empty())	34✔
293	{
294	formatted_args += "\n";	2✔
295	formatted_args += formatComment(args_node.comment(), indent + 1);	2✔
296	formatted_args += prefix(indent + 1);	2✔
297	}	2✔
298	else
299	formatted_args += " ";	32✔
300
301	if (args_node.isListLike())	34✔
302	{
303	bool comment_in_args = false;	32✔
304	std::string args;	32✔
305	const bool split = shouldSplitOnNewline(args_node);	32✔
306
307	for (std::size_t i = 0, end = args_node.constList().size(); i < end; ++i)	98✔
308	{
309	const Node arg_i = args_node.constList()[i];	66✔
310	if (!arg_i.comment().empty())	66✔
311	comment_in_args = true;	8✔
312
313	args += format(arg_i, indent + ((comment_in_args \|\| split) ? 1 : 0), i > 0 && (comment_in_args \|\| split));	112✔
314	if (i != end - 1)	66✔
315	args += (comment_in_args \|\| split) ? '\n' : ' ';	46✔
316	}	66✔
317
318	formatted_args += fmt::format("({}{})", (comment_in_args ? "\n" : ""), args);	32✔
319	}	32✔
320	else
321	formatted_args += format(args_node, indent, false);	2✔
322
323	if (!shouldSplitOnNewline(body_node) && args_node.comment().empty())	34✔
324	return fmt::format("(fun{} {})", formatted_args, format(body_node, indent + 1, false));	22✔
325	return fmt::format("(fun{}\n{})", formatted_args, format(body_node, indent + 1, true));	12✔
326	}	34✔
327
328	std::string Formatter::formatVariable(const Node& node, const std::size_t indent)	70✔
329	{	70✔
330	const auto keyword = std::string(keywords[static_cast<std::size_t>(node.constList()[0].keyword())]);	70✔
331
332	const Node body_node = node.constList()[2];	70✔
333	const std::string formatted_bind = format(node.constList()[1], indent, false);	70✔
334
335	// we don't want to add another indentation level here, because it would result in a (let a (fun ()\n{indent+=4}...))
336	if (isFuncDef(body_node) \|\| !shouldSplitOnNewline(body_node))	70✔
337	return fmt::format("({} {} {})", keyword, formatted_bind, format(body_node, indent, false));	68✔
338	return fmt::format("({} {}\n{})", keyword, formatted_bind, format(body_node, indent + 1, true));	2✔
339	}	70✔
340
341	std::string Formatter::formatCondition(const Node& node, const std::size_t indent, const bool is_macro)	48✔
342	{	48✔
343	const Node cond_node = node.constList()[1];	48✔
344	const Node then_node = node.constList()[2];	48✔
345
346	bool cond_on_newline = false;	48✔
347	std::string formatted_cond = format(cond_node, indent + 1, false);	48✔
348	if (formatted_cond.find('\n') != std::string::npos)	48✔
349	cond_on_newline = true;	2✔
350
351	std::string if_cond_formatted = fmt::format(	96✔
352	"({}if{}{}",	48✔
353	is_macro ? "$" : "",	48✔
354	cond_on_newline ? "\n" : " ",	48✔
355	formatted_cond);
356
357	const bool split_then_newline = shouldSplitOnNewline(then_node);	48✔
358
359	// (if cond then)
360	if (node.constList().size() == 3)	48✔
361	{
362	if (cond_on_newline \|\| split_then_newline)	22✔
363	return fmt::format("{}\n{})", if_cond_formatted, format(then_node, indent + 1, true));	2✔
364	return fmt::format("{} {})", if_cond_formatted, format(then_node, indent + 1, false));	20✔
365	}
366	// (if cond then else)
367	return fmt::format(	26✔
368	"{}\n{}\n{}{})",	26✔
369	if_cond_formatted,
370	format(then_node, indent + 1, true),	26✔
371	format(node.constList()[3], indent + 1, true),	26✔
372	node.constList()[3].commentAfter().empty() ? "" : ("\n" + prefix(indent)));	26✔
373	}	48✔
374
375	std::string Formatter::formatLoop(const Node& node, const std::size_t indent)	10✔
376	{	10✔
377	const Node cond_node = node.constList()[1];	10✔
378	const Node body_node = node.constList()[2];	10✔
379
380	bool cond_on_newline = false;	10✔
381	std::string formatted_cond = format(cond_node, indent + 1, false);	10✔
382	if (formatted_cond.find('\n') != std::string::npos)	10✔
383	cond_on_newline = true;	2✔
384
385	if (cond_on_newline \|\| shouldSplitOnNewline(body_node))	10✔
386	return fmt::format(	8✔
387	"(while{}{}\n{})",	4✔
388	cond_on_newline ? "\n" : " ",	4✔
389	formatted_cond,
390	format(body_node, indent + 1, true));	4✔
391	return fmt::format(	6✔
392	"(while {} {})",	6✔
393	formatted_cond,
394	format(body_node, indent + 1, false));	6✔
395	}	10✔
396
397	std::string Formatter::formatBegin(const Node& node, const std::size_t indent, const bool after_newline)	60✔
398	{	60✔
399	// only the keyword begin is present
400	if (node.constList().size() == 1)	60✔
401	return "{}";	8✔
402
403	// after a new line, we need to increment our indentation level
404	// if the block is a top level one, we also need to increment indentation level
405	const std::size_t inner_indentation = indent + (after_newline ? 1 : 0) + (indent == 0 ? 1 : 0);	52✔
406
407	std::string result = "{\n";	52✔
408	// skip begin keyword
409	for (std::size_t i = 1, end = node.constList().size(); i < end; ++i)	152✔
410	{
411	const Node child = node.constList()[i];	100✔
412	// we want to preserve the node grouping by the user, but remove useless duplicate new line
413	// but that shouldn't apply to the first node of the block
414	if (shouldAddNewLineBetweenNodes(node, i) && i > 1)	100✔
415	result += "\n";	×
416
417	result += format(child, inner_indentation, true);	100✔
418	if (i != end - 1)	100✔
419	result += "\n";	48✔
420	}	100✔
421
422	// if the last node has a comment, add a new line
423	if (!node.constList().empty() && !node.constList().back().commentAfter().empty())	52✔
424	result += "\n" + prefix(indent) + "}";	2✔
425	else
426	result += " }";	50✔
427	return result;	52✔
428	}	60✔
429
430	std::string Formatter::formatImport(const Node& node, const std::size_t indent)	20✔
431	{	20✔
432	const Node package_node = node.constList()[1];	20✔
433	std::string package;	20✔
434
435	if (!package_node.comment().empty())	20✔
436	package += "\n" + formatComment(package_node.comment(), indent + 1) + prefix(indent + 1);	2✔
437	else
438	package += " ";	18✔
439
440	for (std::size_t i = 0, end = package_node.constList().size(); i < end; ++i)	58✔
441	{
442	package += format(package_node.constList()[i], indent + 1, false);	38✔
443	if (i != end - 1)	38✔
444	package += ".";	18✔
445	}	38✔
446
447	const Node symbols = node.constList()[2];	20✔
448	if (symbols.nodeType() == NodeType::Symbol && symbols.string() == "*")	20✔
449	package += ":*";	2✔
450	else // symbols is a list
451	{
452	if (const auto& sym_list = symbols.constList(); !sym_list.empty())	28✔
453	{
454	const bool comment_after_last = !sym_list.back().commentAfter().empty();	10✔
455
456	for (const auto& sym : sym_list)	24✔
457	{
458	if (sym.comment().empty())	14✔
459	{
460	if (comment_after_last)	8✔
461	package += "\n" + prefix(indent + 1) + ":" + sym.string();	2✔
462	else
463	package += " :" + sym.string();	6✔
464	}	8✔
465	else
466	package += "\n" + formatComment(sym.comment(), indent + 1) + prefix(indent + 1) + ":" + sym.string();	6✔
467	}	14✔
468
469	if (comment_after_last)	10✔
470	{
471	package += " " + formatComment(sym_list.back().commentAfter(), /* indent= */ 0);	2✔
472	package += "\n" + prefix(indent + 1);	2✔
473	}	2✔
474	}	10✔
475	}
476
477	return fmt::format("(import{})", package);	20✔
478	}	20✔
479
480	std::string Formatter::formatDel(const Node& node, const std::size_t indent)	4✔
481	{	4✔
482	std::string formatted_sym = format(node.constList()[1], indent + 1, false);	4✔
483	if (formatted_sym.find('\n') != std::string::npos)	4✔
484	return fmt::format("(del\n{})", formatted_sym);	2✔
485	return fmt::format("(del {})", formatted_sym);	2✔
486	}	4✔
487
488	std::string Formatter::formatCall(const Node& node, const std::size_t indent)	236✔
489	{	236✔
490	bool is_list = false;	236✔
491	bool is_dict = false;	236✔
492	bool is_multiline = false;	236✔
493
494	if (!node.constList().empty() && node.constList().front().nodeType() == NodeType::Symbol)	236✔
495	{
496	if (node.constList().front().string() == "list")	206✔
497	is_list = true;	4✔
498	else if (node.constList().front().string() == "dict")	202✔
499	is_dict = true;	8✔
500	}	206✔
501
502	std::vector<std::string> formatted_args;	236✔
503	for (std::size_t i = 1, end = node.constList().size(); i < end; ++i)	638✔
504	{
505	formatted_args.push_back(format(node.constList()[i], indent, false));	402✔
506	// if we have at least one argument taking multiple lines, split them all on their own line
507	if (formatted_args.back().find('\n') != std::string::npos \|\| !node.constList()[i].commentAfter().empty())	402✔
508	is_multiline = true;	16✔
509	}	402✔
510
511	std::string result = is_list ? "[" : ("(" + format(node.constList()[0], indent, false));	236✔
512	for (std::size_t i = 0, end = formatted_args.size(); i < end; ++i)	638✔
513	{
514	const std::string& formatted_node = formatted_args[i];	402✔
515	if (is_dict)	402✔
516	{
517	if (i % 2 == 0 && formatted_args.size() > 2) // one pair per line if we have at least 2 key-value pairs	32✔
518	result += "\n" + format(node.constList()[i + 1], indent + 1, true);	12✔
519	else
520	result += " " + formatted_node;	20✔
521	}	32✔
522	else if (is_multiline)	370✔
523	result += "\n" + format(node.constList()[i + 1], indent + 1, true);	28✔
524	else if (is_list && i == 0)	342✔
525	result += formatted_node;	2✔
526	else // put all arguments on the same line
527	result += " " + formatted_node;	340✔
528	}	402✔
529	if (!node.constList().back().commentAfter().empty())	236✔
530	result += "\n" + prefix(indent);	6✔
531
532	result += is_list ? "]" : ")";	236✔
533	return result;	236✔
534	}	236✔
535
536	std::string Formatter::formatMacro(const Node& node, const std::size_t indent)	22✔
537	{	22✔
538	if (isListStartingWithKeyword(node, Keyword::If))	22✔
539	return formatCondition(node, indent, /* is_macro= */ true);	6✔
540
541	std::string result = "(macro ";	16✔
542	bool after_newline = false;	16✔
543
544	for (std::size_t i = 0, end = node.constList().size(); i < end; ++i)	62✔
545	{
546	result += format(node.constList()[i], indent + 1, after_newline);	46✔
547	after_newline = false;	46✔
548
549	if (!node.constList()[i].commentAfter().empty())	46✔
550	{
551	result += "\n";	6✔
552	after_newline = true;	6✔
553	}	6✔
554	else if (i != end - 1)	40✔
555	result += " ";	26✔
556	}	46✔
557
558	return result + ")";	16✔
559	}	22✔

ArkScript-lang / Ark / 20065764942

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