1599 lines
50 KiB
Zig
1599 lines
50 KiB
Zig
const std = @import("std");
|
|
const mem = std.mem;
|
|
|
|
pub const Source = struct {
|
|
buffer: []const u8,
|
|
file_name: []const u8,
|
|
tokens: TokenList,
|
|
|
|
pub const TokenList = std.SegmentedList(Token, 64);
|
|
};
|
|
|
|
pub const Token = struct {
|
|
id: Id,
|
|
start: usize,
|
|
end: usize,
|
|
source: *Source,
|
|
|
|
pub const Id = union(enum) {
|
|
Invalid,
|
|
Eof,
|
|
Nl,
|
|
Identifier,
|
|
|
|
/// special case for #include <...>
|
|
MacroString,
|
|
StringLiteral: StrKind,
|
|
CharLiteral: StrKind,
|
|
IntegerLiteral: NumSuffix,
|
|
FloatLiteral: NumSuffix,
|
|
Bang,
|
|
BangEqual,
|
|
Pipe,
|
|
PipePipe,
|
|
PipeEqual,
|
|
Equal,
|
|
EqualEqual,
|
|
LParen,
|
|
RParen,
|
|
LBrace,
|
|
RBrace,
|
|
LBracket,
|
|
RBracket,
|
|
Period,
|
|
Ellipsis,
|
|
Caret,
|
|
CaretEqual,
|
|
Plus,
|
|
PlusPlus,
|
|
PlusEqual,
|
|
Minus,
|
|
MinusMinus,
|
|
MinusEqual,
|
|
Asterisk,
|
|
AsteriskEqual,
|
|
Percent,
|
|
PercentEqual,
|
|
Arrow,
|
|
Colon,
|
|
Semicolon,
|
|
Slash,
|
|
SlashEqual,
|
|
Comma,
|
|
Ampersand,
|
|
AmpersandAmpersand,
|
|
AmpersandEqual,
|
|
QuestionMark,
|
|
AngleBracketLeft,
|
|
AngleBracketLeftEqual,
|
|
AngleBracketAngleBracketLeft,
|
|
AngleBracketAngleBracketLeftEqual,
|
|
AngleBracketRight,
|
|
AngleBracketRightEqual,
|
|
AngleBracketAngleBracketRight,
|
|
AngleBracketAngleBracketRightEqual,
|
|
Tilde,
|
|
LineComment,
|
|
MultiLineComment,
|
|
Hash,
|
|
HashHash,
|
|
|
|
Keyword_auto,
|
|
Keyword_break,
|
|
Keyword_case,
|
|
Keyword_char,
|
|
Keyword_const,
|
|
Keyword_continue,
|
|
Keyword_default,
|
|
Keyword_do,
|
|
Keyword_double,
|
|
Keyword_else,
|
|
Keyword_enum,
|
|
Keyword_extern,
|
|
Keyword_float,
|
|
Keyword_for,
|
|
Keyword_goto,
|
|
Keyword_if,
|
|
Keyword_int,
|
|
Keyword_long,
|
|
Keyword_register,
|
|
Keyword_return,
|
|
Keyword_short,
|
|
Keyword_signed,
|
|
Keyword_sizeof,
|
|
Keyword_static,
|
|
Keyword_struct,
|
|
Keyword_switch,
|
|
Keyword_typedef,
|
|
Keyword_union,
|
|
Keyword_unsigned,
|
|
Keyword_void,
|
|
Keyword_volatile,
|
|
Keyword_while,
|
|
|
|
// ISO C99
|
|
Keyword_bool,
|
|
Keyword_complex,
|
|
Keyword_imaginary,
|
|
Keyword_inline,
|
|
Keyword_restrict,
|
|
|
|
// ISO C11
|
|
Keyword_alignas,
|
|
Keyword_alignof,
|
|
Keyword_atomic,
|
|
Keyword_generic,
|
|
Keyword_noreturn,
|
|
Keyword_static_assert,
|
|
Keyword_thread_local,
|
|
|
|
// Preprocessor directives
|
|
Keyword_include,
|
|
Keyword_define,
|
|
Keyword_ifdef,
|
|
Keyword_ifndef,
|
|
Keyword_error,
|
|
Keyword_pragma,
|
|
|
|
pub fn symbol(id: @TagType(Id)) []const u8 {
|
|
return switch (id) {
|
|
.Invalid => "Invalid",
|
|
.Eof => "Eof",
|
|
.Nl => "NewLine",
|
|
.Identifier => "Identifier",
|
|
.MacroString => "MacroString",
|
|
.StringLiteral => "StringLiteral",
|
|
.CharLiteral => "CharLiteral",
|
|
.IntegerLiteral => "IntegerLiteral",
|
|
.FloatLiteral => "FloatLiteral",
|
|
.LineComment => "LineComment",
|
|
.MultiLineComment => "MultiLineComment",
|
|
|
|
.Bang => "!",
|
|
.BangEqual => "!=",
|
|
.Pipe => "|",
|
|
.PipePipe => "||",
|
|
.PipeEqual => "|=",
|
|
.Equal => "=",
|
|
.EqualEqual => "==",
|
|
.LParen => "(",
|
|
.RParen => ")",
|
|
.LBrace => "{",
|
|
.RBrace => "}",
|
|
.LBracket => "[",
|
|
.RBracket => "]",
|
|
.Period => ".",
|
|
.Ellipsis => "...",
|
|
.Caret => "^",
|
|
.CaretEqual => "^=",
|
|
.Plus => "+",
|
|
.PlusPlus => "++",
|
|
.PlusEqual => "+=",
|
|
.Minus => "-",
|
|
.MinusMinus => "--",
|
|
.MinusEqual => "-=",
|
|
.Asterisk => "*",
|
|
.AsteriskEqual => "*=",
|
|
.Percent => "%",
|
|
.PercentEqual => "%=",
|
|
.Arrow => "->",
|
|
.Colon => ":",
|
|
.Semicolon => ";",
|
|
.Slash => "/",
|
|
.SlashEqual => "/=",
|
|
.Comma => ",",
|
|
.Ampersand => "&",
|
|
.AmpersandAmpersand => "&&",
|
|
.AmpersandEqual => "&=",
|
|
.QuestionMark => "?",
|
|
.AngleBracketLeft => "<",
|
|
.AngleBracketLeftEqual => "<=",
|
|
.AngleBracketAngleBracketLeft => "<<",
|
|
.AngleBracketAngleBracketLeftEqual => "<<=",
|
|
.AngleBracketRight => ">",
|
|
.AngleBracketRightEqual => ">=",
|
|
.AngleBracketAngleBracketRight => ">>",
|
|
.AngleBracketAngleBracketRightEqual => ">>=",
|
|
.Tilde => "~",
|
|
.Hash => "#",
|
|
.HashHash => "##",
|
|
.Keyword_auto => "auto",
|
|
.Keyword_break => "break",
|
|
.Keyword_case => "case",
|
|
.Keyword_char => "char",
|
|
.Keyword_const => "const",
|
|
.Keyword_continue => "continue",
|
|
.Keyword_default => "default",
|
|
.Keyword_do => "do",
|
|
.Keyword_double => "double",
|
|
.Keyword_else => "else",
|
|
.Keyword_enum => "enum",
|
|
.Keyword_extern => "extern",
|
|
.Keyword_float => "float",
|
|
.Keyword_for => "for",
|
|
.Keyword_goto => "goto",
|
|
.Keyword_if => "if",
|
|
.Keyword_int => "int",
|
|
.Keyword_long => "long",
|
|
.Keyword_register => "register",
|
|
.Keyword_return => "return",
|
|
.Keyword_short => "short",
|
|
.Keyword_signed => "signed",
|
|
.Keyword_sizeof => "sizeof",
|
|
.Keyword_static => "static",
|
|
.Keyword_struct => "struct",
|
|
.Keyword_switch => "switch",
|
|
.Keyword_typedef => "typedef",
|
|
.Keyword_union => "union",
|
|
.Keyword_unsigned => "unsigned",
|
|
.Keyword_void => "void",
|
|
.Keyword_volatile => "volatile",
|
|
.Keyword_while => "while",
|
|
.Keyword_bool => "_Bool",
|
|
.Keyword_complex => "_Complex",
|
|
.Keyword_imaginary => "_Imaginary",
|
|
.Keyword_inline => "inline",
|
|
.Keyword_restrict => "restrict",
|
|
.Keyword_alignas => "_Alignas",
|
|
.Keyword_alignof => "_Alignof",
|
|
.Keyword_atomic => "_Atomic",
|
|
.Keyword_generic => "_Generic",
|
|
.Keyword_noreturn => "_Noreturn",
|
|
.Keyword_static_assert => "_Static_assert",
|
|
.Keyword_thread_local => "_Thread_local",
|
|
.Keyword_include => "include",
|
|
.Keyword_define => "define",
|
|
.Keyword_ifdef => "ifdef",
|
|
.Keyword_ifndef => "ifndef",
|
|
.Keyword_error => "error",
|
|
.Keyword_pragma => "pragma",
|
|
};
|
|
}
|
|
};
|
|
|
|
pub fn eql(a: Token, b: Token) bool {
|
|
// do we really need this cast here
|
|
if (@as(@TagType(Id), a.id) != b.id) return false;
|
|
return mem.eql(u8, a.slice(), b.slice());
|
|
}
|
|
|
|
pub fn slice(tok: Token) []const u8 {
|
|
return tok.source.buffer[tok.start..tok.end];
|
|
}
|
|
|
|
pub const Keyword = struct {
|
|
bytes: []const u8,
|
|
id: Id,
|
|
hash: u32,
|
|
|
|
fn init(bytes: []const u8, id: Id) Keyword {
|
|
@setEvalBranchQuota(2000);
|
|
return .{
|
|
.bytes = bytes,
|
|
.id = id,
|
|
.hash = std.hash_map.hashString(bytes),
|
|
};
|
|
}
|
|
};
|
|
|
|
// TODO extensions
|
|
pub const keywords = [_]Keyword{
|
|
Keyword.init("auto", .Keyword_auto),
|
|
Keyword.init("break", .Keyword_break),
|
|
Keyword.init("case", .Keyword_case),
|
|
Keyword.init("char", .Keyword_char),
|
|
Keyword.init("const", .Keyword_const),
|
|
Keyword.init("continue", .Keyword_continue),
|
|
Keyword.init("default", .Keyword_default),
|
|
Keyword.init("do", .Keyword_do),
|
|
Keyword.init("double", .Keyword_double),
|
|
Keyword.init("else", .Keyword_else),
|
|
Keyword.init("enum", .Keyword_enum),
|
|
Keyword.init("extern", .Keyword_extern),
|
|
Keyword.init("float", .Keyword_float),
|
|
Keyword.init("for", .Keyword_for),
|
|
Keyword.init("goto", .Keyword_goto),
|
|
Keyword.init("if", .Keyword_if),
|
|
Keyword.init("int", .Keyword_int),
|
|
Keyword.init("long", .Keyword_long),
|
|
Keyword.init("register", .Keyword_register),
|
|
Keyword.init("return", .Keyword_return),
|
|
Keyword.init("short", .Keyword_short),
|
|
Keyword.init("signed", .Keyword_signed),
|
|
Keyword.init("sizeof", .Keyword_sizeof),
|
|
Keyword.init("static", .Keyword_static),
|
|
Keyword.init("struct", .Keyword_struct),
|
|
Keyword.init("switch", .Keyword_switch),
|
|
Keyword.init("typedef", .Keyword_typedef),
|
|
Keyword.init("union", .Keyword_union),
|
|
Keyword.init("unsigned", .Keyword_unsigned),
|
|
Keyword.init("void", .Keyword_void),
|
|
Keyword.init("volatile", .Keyword_volatile),
|
|
Keyword.init("while", .Keyword_while),
|
|
|
|
// ISO C99
|
|
Keyword.init("_Bool", .Keyword_bool),
|
|
Keyword.init("_Complex", .Keyword_complex),
|
|
Keyword.init("_Imaginary", .Keyword_imaginary),
|
|
Keyword.init("inline", .Keyword_inline),
|
|
Keyword.init("restrict", .Keyword_restrict),
|
|
|
|
// ISO C11
|
|
Keyword.init("_Alignas", .Keyword_alignas),
|
|
Keyword.init("_Alignof", .Keyword_alignof),
|
|
Keyword.init("_Atomic", .Keyword_atomic),
|
|
Keyword.init("_Generic", .Keyword_generic),
|
|
Keyword.init("_Noreturn", .Keyword_noreturn),
|
|
Keyword.init("_Static_assert", .Keyword_static_assert),
|
|
Keyword.init("_Thread_local", .Keyword_thread_local),
|
|
|
|
// Preprocessor directives
|
|
Keyword.init("include", .Keyword_include),
|
|
Keyword.init("define", .Keyword_define),
|
|
Keyword.init("ifdef", .Keyword_ifdef),
|
|
Keyword.init("ifndef", .Keyword_ifndef),
|
|
Keyword.init("error", .Keyword_error),
|
|
Keyword.init("pragma", .Keyword_pragma),
|
|
};
|
|
|
|
// TODO perfect hash at comptime
|
|
// TODO do this in the preprocessor
|
|
pub fn getKeyword(bytes: []const u8, pp_directive: bool) ?Id {
|
|
var hash = std.hash_map.hashString(bytes);
|
|
for (keywords) |kw| {
|
|
if (kw.hash == hash and mem.eql(u8, kw.bytes, bytes)) {
|
|
switch (kw.id) {
|
|
.Keyword_include,
|
|
.Keyword_define,
|
|
.Keyword_ifdef,
|
|
.Keyword_ifndef,
|
|
.Keyword_error,
|
|
.Keyword_pragma,
|
|
=> if (!pp_directive) return null,
|
|
else => {},
|
|
}
|
|
return kw.id;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
pub const NumSuffix = enum {
|
|
None,
|
|
F,
|
|
L,
|
|
U,
|
|
LU,
|
|
LL,
|
|
LLU,
|
|
};
|
|
|
|
pub const StrKind = enum {
|
|
None,
|
|
Wide,
|
|
Utf8,
|
|
Utf16,
|
|
Utf32,
|
|
};
|
|
};
|
|
|
|
pub const Tokenizer = struct {
|
|
source: *Source,
|
|
index: usize = 0,
|
|
prev_tok_id: @TagType(Token.Id) = .Invalid,
|
|
pp_directive: bool = false,
|
|
|
|
pub fn next(self: *Tokenizer) Token {
|
|
const start_index = self.index;
|
|
var result = Token{
|
|
.id = .Eof,
|
|
.start = self.index,
|
|
.end = undefined,
|
|
.source = self.source,
|
|
};
|
|
var state: enum {
|
|
Start,
|
|
Cr,
|
|
BackSlash,
|
|
BackSlashCr,
|
|
u,
|
|
u8,
|
|
U,
|
|
L,
|
|
StringLiteral,
|
|
CharLiteralStart,
|
|
CharLiteral,
|
|
EscapeSequence,
|
|
CrEscape,
|
|
OctalEscape,
|
|
HexEscape,
|
|
UnicodeEscape,
|
|
Identifier,
|
|
Equal,
|
|
Bang,
|
|
Pipe,
|
|
Percent,
|
|
Asterisk,
|
|
Plus,
|
|
|
|
/// special case for #include <...>
|
|
MacroString,
|
|
AngleBracketLeft,
|
|
AngleBracketAngleBracketLeft,
|
|
AngleBracketRight,
|
|
AngleBracketAngleBracketRight,
|
|
Caret,
|
|
Period,
|
|
Period2,
|
|
Minus,
|
|
Slash,
|
|
Ampersand,
|
|
Hash,
|
|
LineComment,
|
|
MultiLineComment,
|
|
MultiLineCommentAsterisk,
|
|
Zero,
|
|
IntegerLiteralOct,
|
|
IntegerLiteralBinary,
|
|
IntegerLiteralHex,
|
|
IntegerLiteral,
|
|
IntegerSuffix,
|
|
IntegerSuffixU,
|
|
IntegerSuffixL,
|
|
IntegerSuffixLL,
|
|
IntegerSuffixUL,
|
|
FloatFraction,
|
|
FloatFractionHex,
|
|
FloatExponent,
|
|
FloatExponentDigits,
|
|
FloatSuffix,
|
|
} = .Start;
|
|
var string = false;
|
|
var counter: u32 = 0;
|
|
while (self.index < self.source.buffer.len) : (self.index += 1) {
|
|
const c = self.source.buffer[self.index];
|
|
switch (state) {
|
|
.Start => switch (c) {
|
|
'\n' => {
|
|
self.pp_directive = false;
|
|
result.id = .Nl;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'\r' => {
|
|
state = .Cr;
|
|
},
|
|
'"' => {
|
|
result.id = .{ .StringLiteral = .None };
|
|
state = .StringLiteral;
|
|
},
|
|
'\'' => {
|
|
result.id = .{ .CharLiteral = .None };
|
|
state = .CharLiteralStart;
|
|
},
|
|
'u' => {
|
|
state = .u;
|
|
},
|
|
'U' => {
|
|
state = .U;
|
|
},
|
|
'L' => {
|
|
state = .L;
|
|
},
|
|
'a'...'t', 'v'...'z', 'A'...'K', 'M'...'T', 'V'...'Z', '_' => {
|
|
state = .Identifier;
|
|
},
|
|
'=' => {
|
|
state = .Equal;
|
|
},
|
|
'!' => {
|
|
state = .Bang;
|
|
},
|
|
'|' => {
|
|
state = .Pipe;
|
|
},
|
|
'(' => {
|
|
result.id = .LParen;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
')' => {
|
|
result.id = .RParen;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'[' => {
|
|
result.id = .LBracket;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
']' => {
|
|
result.id = .RBracket;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
';' => {
|
|
result.id = .Semicolon;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
',' => {
|
|
result.id = .Comma;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'?' => {
|
|
result.id = .QuestionMark;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
':' => {
|
|
result.id = .Colon;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'%' => {
|
|
state = .Percent;
|
|
},
|
|
'*' => {
|
|
state = .Asterisk;
|
|
},
|
|
'+' => {
|
|
state = .Plus;
|
|
},
|
|
'<' => {
|
|
if (self.prev_tok_id == .Keyword_include)
|
|
state = .MacroString
|
|
else
|
|
state = .AngleBracketLeft;
|
|
},
|
|
'>' => {
|
|
state = .AngleBracketRight;
|
|
},
|
|
'^' => {
|
|
state = .Caret;
|
|
},
|
|
'{' => {
|
|
result.id = .LBrace;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'}' => {
|
|
result.id = .RBrace;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'~' => {
|
|
result.id = .Tilde;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'.' => {
|
|
state = .Period;
|
|
},
|
|
'-' => {
|
|
state = .Minus;
|
|
},
|
|
'/' => {
|
|
state = .Slash;
|
|
},
|
|
'&' => {
|
|
state = .Ampersand;
|
|
},
|
|
'#' => {
|
|
state = .Hash;
|
|
},
|
|
'0' => {
|
|
state = .Zero;
|
|
},
|
|
'1'...'9' => {
|
|
state = .IntegerLiteral;
|
|
},
|
|
'\\' => {
|
|
state = .BackSlash;
|
|
},
|
|
'\t', '\x0B', '\x0C', ' ' => {
|
|
result.start = self.index + 1;
|
|
},
|
|
else => {
|
|
// TODO handle invalid bytes better
|
|
result.id = .Invalid;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
},
|
|
.Cr => switch (c) {
|
|
'\n' => {
|
|
self.pp_directive = false;
|
|
result.id = .Nl;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
},
|
|
.BackSlash => switch (c) {
|
|
'\n' => {
|
|
result.start = self.index + 1;
|
|
state = .Start;
|
|
},
|
|
'\r' => {
|
|
state = .BackSlashCr;
|
|
},
|
|
'\t', '\x0B', '\x0C', ' ' => {
|
|
// TODO warn
|
|
},
|
|
else => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
},
|
|
.BackSlashCr => switch (c) {
|
|
'\n' => {
|
|
result.start = self.index + 1;
|
|
state = .Start;
|
|
},
|
|
else => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
},
|
|
.u => switch (c) {
|
|
'8' => {
|
|
state = .u8;
|
|
},
|
|
'\'' => {
|
|
result.id = .{ .CharLiteral = .Utf16 };
|
|
state = .CharLiteralStart;
|
|
},
|
|
'\"' => {
|
|
result.id = .{ .StringLiteral = .Utf16 };
|
|
state = .StringLiteral;
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = .Identifier;
|
|
},
|
|
},
|
|
.u8 => switch (c) {
|
|
'\"' => {
|
|
result.id = .{ .StringLiteral = .Utf8 };
|
|
state = .StringLiteral;
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = .Identifier;
|
|
},
|
|
},
|
|
.U => switch (c) {
|
|
'\'' => {
|
|
result.id = .{ .CharLiteral = .Utf32 };
|
|
state = .CharLiteralStart;
|
|
},
|
|
'\"' => {
|
|
result.id = .{ .StringLiteral = .Utf32 };
|
|
state = .StringLiteral;
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = .Identifier;
|
|
},
|
|
},
|
|
.L => switch (c) {
|
|
'\'' => {
|
|
result.id = .{ .CharLiteral = .Wide };
|
|
state = .CharLiteralStart;
|
|
},
|
|
'\"' => {
|
|
result.id = .{ .StringLiteral = .Wide };
|
|
state = .StringLiteral;
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = .Identifier;
|
|
},
|
|
},
|
|
.StringLiteral => switch (c) {
|
|
'\\' => {
|
|
string = true;
|
|
state = .EscapeSequence;
|
|
},
|
|
'"' => {
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'\n', '\r' => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
else => {},
|
|
},
|
|
.CharLiteralStart => switch (c) {
|
|
'\\' => {
|
|
string = false;
|
|
state = .EscapeSequence;
|
|
},
|
|
'\'', '\n' => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
else => {
|
|
state = .CharLiteral;
|
|
},
|
|
},
|
|
.CharLiteral => switch (c) {
|
|
'\\' => {
|
|
string = false;
|
|
state = .EscapeSequence;
|
|
},
|
|
'\'' => {
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'\n' => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
else => {},
|
|
},
|
|
.EscapeSequence => switch (c) {
|
|
'\'', '"', '?', '\\', 'a', 'b', 'f', 'n', 'r', 't', 'v', '\n' => {
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
},
|
|
'\r' => {
|
|
state = .CrEscape;
|
|
},
|
|
'0'...'7' => {
|
|
counter = 1;
|
|
state = .OctalEscape;
|
|
},
|
|
'x' => {
|
|
state = .HexEscape;
|
|
},
|
|
'u' => {
|
|
counter = 4;
|
|
state = .OctalEscape;
|
|
},
|
|
'U' => {
|
|
counter = 8;
|
|
state = .OctalEscape;
|
|
},
|
|
else => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
},
|
|
.CrEscape => switch (c) {
|
|
'\n' => {
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
},
|
|
else => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
},
|
|
.OctalEscape => switch (c) {
|
|
'0'...'7' => {
|
|
counter += 1;
|
|
if (counter == 3) {
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
}
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
},
|
|
},
|
|
.HexEscape => switch (c) {
|
|
'0'...'9', 'a'...'f', 'A'...'F' => {},
|
|
else => {
|
|
self.index -= 1;
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
},
|
|
},
|
|
.UnicodeEscape => switch (c) {
|
|
'0'...'9', 'a'...'f', 'A'...'F' => {
|
|
counter -= 1;
|
|
if (counter == 0) {
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
}
|
|
},
|
|
else => {
|
|
if (counter != 0) {
|
|
result.id = .Invalid;
|
|
break;
|
|
}
|
|
self.index -= 1;
|
|
state = if (string) .StringLiteral else .CharLiteral;
|
|
},
|
|
},
|
|
.Identifier => switch (c) {
|
|
'a'...'z', 'A'...'Z', '_', '0'...'9' => {},
|
|
else => {
|
|
result.id = Token.getKeyword(self.source.buffer[result.start..self.index], self.prev_tok_id == .Hash and !self.pp_directive) orelse .Identifier;
|
|
if (self.prev_tok_id == .Hash)
|
|
self.pp_directive = true;
|
|
break;
|
|
},
|
|
},
|
|
.Equal => switch (c) {
|
|
'=' => {
|
|
result.id = .EqualEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Equal;
|
|
break;
|
|
},
|
|
},
|
|
.Bang => switch (c) {
|
|
'=' => {
|
|
result.id = .BangEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Bang;
|
|
break;
|
|
},
|
|
},
|
|
.Pipe => switch (c) {
|
|
'=' => {
|
|
result.id = .PipeEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'|' => {
|
|
result.id = .PipePipe;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Pipe;
|
|
break;
|
|
},
|
|
},
|
|
.Percent => switch (c) {
|
|
'=' => {
|
|
result.id = .PercentEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Percent;
|
|
break;
|
|
},
|
|
},
|
|
.Asterisk => switch (c) {
|
|
'=' => {
|
|
result.id = .AsteriskEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Asterisk;
|
|
break;
|
|
},
|
|
},
|
|
.Plus => switch (c) {
|
|
'=' => {
|
|
result.id = .PlusEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'+' => {
|
|
result.id = .PlusPlus;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Plus;
|
|
break;
|
|
},
|
|
},
|
|
.MacroString => switch (c) {
|
|
'>' => {
|
|
result.id = .MacroString;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {},
|
|
},
|
|
.AngleBracketLeft => switch (c) {
|
|
'<' => {
|
|
state = .AngleBracketAngleBracketLeft;
|
|
},
|
|
'=' => {
|
|
result.id = .AngleBracketLeftEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .AngleBracketLeft;
|
|
break;
|
|
},
|
|
},
|
|
.AngleBracketAngleBracketLeft => switch (c) {
|
|
'=' => {
|
|
result.id = .AngleBracketAngleBracketLeftEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .AngleBracketAngleBracketLeft;
|
|
break;
|
|
},
|
|
},
|
|
.AngleBracketRight => switch (c) {
|
|
'>' => {
|
|
state = .AngleBracketAngleBracketRight;
|
|
},
|
|
'=' => {
|
|
result.id = .AngleBracketRightEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .AngleBracketRight;
|
|
break;
|
|
},
|
|
},
|
|
.AngleBracketAngleBracketRight => switch (c) {
|
|
'=' => {
|
|
result.id = .AngleBracketAngleBracketRightEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .AngleBracketAngleBracketRight;
|
|
break;
|
|
},
|
|
},
|
|
.Caret => switch (c) {
|
|
'=' => {
|
|
result.id = .CaretEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Caret;
|
|
break;
|
|
},
|
|
},
|
|
.Period => switch (c) {
|
|
'.' => {
|
|
state = .Period2;
|
|
},
|
|
'0'...'9' => {
|
|
state = .FloatFraction;
|
|
},
|
|
else => {
|
|
result.id = .Period;
|
|
break;
|
|
},
|
|
},
|
|
.Period2 => switch (c) {
|
|
'.' => {
|
|
result.id = .Ellipsis;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Period;
|
|
self.index -= 1;
|
|
break;
|
|
},
|
|
},
|
|
.Minus => switch (c) {
|
|
'>' => {
|
|
result.id = .Arrow;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'=' => {
|
|
result.id = .MinusEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'-' => {
|
|
result.id = .MinusMinus;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Minus;
|
|
break;
|
|
},
|
|
},
|
|
.Slash => switch (c) {
|
|
'/' => {
|
|
state = .LineComment;
|
|
},
|
|
'*' => {
|
|
state = .MultiLineComment;
|
|
},
|
|
'=' => {
|
|
result.id = .SlashEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Slash;
|
|
break;
|
|
},
|
|
},
|
|
.Ampersand => switch (c) {
|
|
'&' => {
|
|
result.id = .AmpersandAmpersand;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'=' => {
|
|
result.id = .AmpersandEqual;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Ampersand;
|
|
break;
|
|
},
|
|
},
|
|
.Hash => switch (c) {
|
|
'#' => {
|
|
result.id = .HashHash;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .Hash;
|
|
break;
|
|
},
|
|
},
|
|
.LineComment => switch (c) {
|
|
'\n' => {
|
|
result.id = .LineComment;
|
|
break;
|
|
},
|
|
else => {},
|
|
},
|
|
.MultiLineComment => switch (c) {
|
|
'*' => {
|
|
state = .MultiLineCommentAsterisk;
|
|
},
|
|
else => {},
|
|
},
|
|
.MultiLineCommentAsterisk => switch (c) {
|
|
'/' => {
|
|
result.id = .MultiLineComment;
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
state = .MultiLineComment;
|
|
},
|
|
},
|
|
.Zero => switch (c) {
|
|
'0'...'9' => {
|
|
state = .IntegerLiteralOct;
|
|
},
|
|
'b', 'B' => {
|
|
state = .IntegerLiteralBinary;
|
|
},
|
|
'x', 'X' => {
|
|
state = .IntegerLiteralHex;
|
|
},
|
|
'.' => {
|
|
state = .FloatFraction;
|
|
},
|
|
else => {
|
|
state = .IntegerSuffix;
|
|
self.index -= 1;
|
|
},
|
|
},
|
|
.IntegerLiteralOct => switch (c) {
|
|
'0'...'7' => {},
|
|
else => {
|
|
state = .IntegerSuffix;
|
|
self.index -= 1;
|
|
},
|
|
},
|
|
.IntegerLiteralBinary => switch (c) {
|
|
'0', '1' => {},
|
|
else => {
|
|
state = .IntegerSuffix;
|
|
self.index -= 1;
|
|
},
|
|
},
|
|
.IntegerLiteralHex => switch (c) {
|
|
'0'...'9', 'a'...'f', 'A'...'F' => {},
|
|
'.' => {
|
|
state = .FloatFractionHex;
|
|
},
|
|
'p', 'P' => {
|
|
state = .FloatExponent;
|
|
},
|
|
else => {
|
|
state = .IntegerSuffix;
|
|
self.index -= 1;
|
|
},
|
|
},
|
|
.IntegerLiteral => switch (c) {
|
|
'0'...'9' => {},
|
|
'.' => {
|
|
state = .FloatFraction;
|
|
},
|
|
'e', 'E' => {
|
|
state = .FloatExponent;
|
|
},
|
|
else => {
|
|
state = .IntegerSuffix;
|
|
self.index -= 1;
|
|
},
|
|
},
|
|
.IntegerSuffix => switch (c) {
|
|
'u', 'U' => {
|
|
state = .IntegerSuffixU;
|
|
},
|
|
'l', 'L' => {
|
|
state = .IntegerSuffixL;
|
|
},
|
|
else => {
|
|
result.id = .{ .IntegerLiteral = .None };
|
|
break;
|
|
},
|
|
},
|
|
.IntegerSuffixU => switch (c) {
|
|
'l', 'L' => {
|
|
state = .IntegerSuffixUL;
|
|
},
|
|
else => {
|
|
result.id = .{ .IntegerLiteral = .U };
|
|
break;
|
|
},
|
|
},
|
|
.IntegerSuffixL => switch (c) {
|
|
'l', 'L' => {
|
|
state = .IntegerSuffixLL;
|
|
},
|
|
'u', 'U' => {
|
|
result.id = .{ .IntegerLiteral = .LU };
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .{ .IntegerLiteral = .L };
|
|
break;
|
|
},
|
|
},
|
|
.IntegerSuffixLL => switch (c) {
|
|
'u', 'U' => {
|
|
result.id = .{ .IntegerLiteral = .LLU };
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .{ .IntegerLiteral = .LL };
|
|
break;
|
|
},
|
|
},
|
|
.IntegerSuffixUL => switch (c) {
|
|
'l', 'L' => {
|
|
result.id = .{ .IntegerLiteral = .LLU };
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .{ .IntegerLiteral = .LU };
|
|
break;
|
|
},
|
|
},
|
|
.FloatFraction => switch (c) {
|
|
'0'...'9' => {},
|
|
'e', 'E' => {
|
|
state = .FloatExponent;
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = .FloatSuffix;
|
|
},
|
|
},
|
|
.FloatFractionHex => switch (c) {
|
|
'0'...'9', 'a'...'f', 'A'...'F' => {},
|
|
'p', 'P' => {
|
|
state = .FloatExponent;
|
|
},
|
|
else => {
|
|
result.id = .Invalid;
|
|
break;
|
|
},
|
|
},
|
|
.FloatExponent => switch (c) {
|
|
'+', '-' => {
|
|
state = .FloatExponentDigits;
|
|
},
|
|
else => {
|
|
self.index -= 1;
|
|
state = .FloatExponentDigits;
|
|
},
|
|
},
|
|
.FloatExponentDigits => switch (c) {
|
|
'0'...'9' => {
|
|
counter += 1;
|
|
},
|
|
else => {
|
|
if (counter == 0) {
|
|
result.id = .Invalid;
|
|
break;
|
|
}
|
|
self.index -= 1;
|
|
state = .FloatSuffix;
|
|
},
|
|
},
|
|
.FloatSuffix => switch (c) {
|
|
'l', 'L' => {
|
|
result.id = .{ .FloatLiteral = .L };
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
'f', 'F' => {
|
|
result.id = .{ .FloatLiteral = .F };
|
|
self.index += 1;
|
|
break;
|
|
},
|
|
else => {
|
|
result.id = .{ .FloatLiteral = .None };
|
|
break;
|
|
},
|
|
},
|
|
}
|
|
} else if (self.index == self.source.buffer.len) {
|
|
switch (state) {
|
|
.Start => {},
|
|
.u, .u8, .U, .L, .Identifier => {
|
|
result.id = Token.getKeyword(self.source.buffer[result.start..self.index], self.prev_tok_id == .Hash and !self.pp_directive) orelse .Identifier;
|
|
},
|
|
|
|
.Cr,
|
|
.BackSlash,
|
|
.BackSlashCr,
|
|
.Period2,
|
|
.StringLiteral,
|
|
.CharLiteralStart,
|
|
.CharLiteral,
|
|
.EscapeSequence,
|
|
.CrEscape,
|
|
.OctalEscape,
|
|
.HexEscape,
|
|
.UnicodeEscape,
|
|
.MultiLineComment,
|
|
.MultiLineCommentAsterisk,
|
|
.FloatExponent,
|
|
.MacroString,
|
|
=> result.id = .Invalid,
|
|
|
|
.FloatExponentDigits => result.id = if (counter == 0) .Invalid else .{ .FloatLiteral = .None },
|
|
|
|
.FloatFraction,
|
|
.FloatFractionHex,
|
|
=> result.id = .{ .FloatLiteral = .None },
|
|
|
|
.IntegerLiteralOct,
|
|
.IntegerLiteralBinary,
|
|
.IntegerLiteralHex,
|
|
.IntegerLiteral,
|
|
.IntegerSuffix,
|
|
.Zero,
|
|
=> result.id = .{ .IntegerLiteral = .None },
|
|
.IntegerSuffixU => result.id = .{ .IntegerLiteral = .U },
|
|
.IntegerSuffixL => result.id = .{ .IntegerLiteral = .L },
|
|
.IntegerSuffixLL => result.id = .{ .IntegerLiteral = .LL },
|
|
.IntegerSuffixUL => result.id = .{ .IntegerLiteral = .LU },
|
|
|
|
.FloatSuffix => result.id = .{ .FloatLiteral = .None },
|
|
.Equal => result.id = .Equal,
|
|
.Bang => result.id = .Bang,
|
|
.Minus => result.id = .Minus,
|
|
.Slash => result.id = .Slash,
|
|
.Ampersand => result.id = .Ampersand,
|
|
.Hash => result.id = .Hash,
|
|
.Period => result.id = .Period,
|
|
.Pipe => result.id = .Pipe,
|
|
.AngleBracketAngleBracketRight => result.id = .AngleBracketAngleBracketRight,
|
|
.AngleBracketRight => result.id = .AngleBracketRight,
|
|
.AngleBracketAngleBracketLeft => result.id = .AngleBracketAngleBracketLeft,
|
|
.AngleBracketLeft => result.id = .AngleBracketLeft,
|
|
.Plus => result.id = .Plus,
|
|
.Percent => result.id = .Percent,
|
|
.Caret => result.id = .Caret,
|
|
.Asterisk => result.id = .Asterisk,
|
|
.LineComment => result.id = .LineComment,
|
|
}
|
|
}
|
|
|
|
self.prev_tok_id = result.id;
|
|
result.end = self.index;
|
|
return result;
|
|
}
|
|
};
|
|
|
|
test "operators" {
|
|
expectTokens(
|
|
\\ ! != | || |= = ==
|
|
\\ ( ) { } [ ] . .. ...
|
|
\\ ^ ^= + ++ += - -- -=
|
|
\\ * *= % %= -> : ; / /=
|
|
\\ , & && &= ? < <= <<
|
|
\\ <<= > >= >> >>= ~ # ##
|
|
\\
|
|
, &[_]Token.Id{
|
|
.Bang,
|
|
.BangEqual,
|
|
.Pipe,
|
|
.PipePipe,
|
|
.PipeEqual,
|
|
.Equal,
|
|
.EqualEqual,
|
|
.Nl,
|
|
.LParen,
|
|
.RParen,
|
|
.LBrace,
|
|
.RBrace,
|
|
.LBracket,
|
|
.RBracket,
|
|
.Period,
|
|
.Period,
|
|
.Period,
|
|
.Ellipsis,
|
|
.Nl,
|
|
.Caret,
|
|
.CaretEqual,
|
|
.Plus,
|
|
.PlusPlus,
|
|
.PlusEqual,
|
|
.Minus,
|
|
.MinusMinus,
|
|
.MinusEqual,
|
|
.Nl,
|
|
.Asterisk,
|
|
.AsteriskEqual,
|
|
.Percent,
|
|
.PercentEqual,
|
|
.Arrow,
|
|
.Colon,
|
|
.Semicolon,
|
|
.Slash,
|
|
.SlashEqual,
|
|
.Nl,
|
|
.Comma,
|
|
.Ampersand,
|
|
.AmpersandAmpersand,
|
|
.AmpersandEqual,
|
|
.QuestionMark,
|
|
.AngleBracketLeft,
|
|
.AngleBracketLeftEqual,
|
|
.AngleBracketAngleBracketLeft,
|
|
.Nl,
|
|
.AngleBracketAngleBracketLeftEqual,
|
|
.AngleBracketRight,
|
|
.AngleBracketRightEqual,
|
|
.AngleBracketAngleBracketRight,
|
|
.AngleBracketAngleBracketRightEqual,
|
|
.Tilde,
|
|
.Hash,
|
|
.HashHash,
|
|
.Nl,
|
|
});
|
|
}
|
|
|
|
test "keywords" {
|
|
expectTokens(
|
|
\\auto break case char const continue default do
|
|
\\double else enum extern float for goto if int
|
|
\\long register return short signed sizeof static
|
|
\\struct switch typedef union unsigned void volatile
|
|
\\while _Bool _Complex _Imaginary inline restrict _Alignas
|
|
\\_Alignof _Atomic _Generic _Noreturn _Static_assert _Thread_local
|
|
\\
|
|
, &[_]Token.Id{
|
|
.Keyword_auto,
|
|
.Keyword_break,
|
|
.Keyword_case,
|
|
.Keyword_char,
|
|
.Keyword_const,
|
|
.Keyword_continue,
|
|
.Keyword_default,
|
|
.Keyword_do,
|
|
.Nl,
|
|
.Keyword_double,
|
|
.Keyword_else,
|
|
.Keyword_enum,
|
|
.Keyword_extern,
|
|
.Keyword_float,
|
|
.Keyword_for,
|
|
.Keyword_goto,
|
|
.Keyword_if,
|
|
.Keyword_int,
|
|
.Nl,
|
|
.Keyword_long,
|
|
.Keyword_register,
|
|
.Keyword_return,
|
|
.Keyword_short,
|
|
.Keyword_signed,
|
|
.Keyword_sizeof,
|
|
.Keyword_static,
|
|
.Nl,
|
|
.Keyword_struct,
|
|
.Keyword_switch,
|
|
.Keyword_typedef,
|
|
.Keyword_union,
|
|
.Keyword_unsigned,
|
|
.Keyword_void,
|
|
.Keyword_volatile,
|
|
.Nl,
|
|
.Keyword_while,
|
|
.Keyword_bool,
|
|
.Keyword_complex,
|
|
.Keyword_imaginary,
|
|
.Keyword_inline,
|
|
.Keyword_restrict,
|
|
.Keyword_alignas,
|
|
.Nl,
|
|
.Keyword_alignof,
|
|
.Keyword_atomic,
|
|
.Keyword_generic,
|
|
.Keyword_noreturn,
|
|
.Keyword_static_assert,
|
|
.Keyword_thread_local,
|
|
.Nl,
|
|
});
|
|
}
|
|
|
|
test "preprocessor keywords" {
|
|
expectTokens(
|
|
\\#include <test>
|
|
\\#define #include <1
|
|
\\#ifdef
|
|
\\#ifndef
|
|
\\#error
|
|
\\#pragma
|
|
\\
|
|
, &[_]Token.Id{
|
|
.Hash,
|
|
.Keyword_include,
|
|
.MacroString,
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_define,
|
|
.Hash,
|
|
.Identifier,
|
|
.AngleBracketLeft,
|
|
.{ .IntegerLiteral = .None },
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_ifdef,
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_ifndef,
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_error,
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_pragma,
|
|
.Nl,
|
|
});
|
|
}
|
|
|
|
test "line continuation" {
|
|
expectTokens(
|
|
\\#define foo \
|
|
\\ bar
|
|
\\"foo\
|
|
\\ bar"
|
|
\\#define "foo"
|
|
\\ "bar"
|
|
\\#define "foo" \
|
|
\\ "bar"
|
|
, &[_]Token.Id{
|
|
.Hash,
|
|
.Keyword_define,
|
|
.Identifier,
|
|
.Identifier,
|
|
.Nl,
|
|
.{ .StringLiteral = .None },
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_define,
|
|
.{ .StringLiteral = .None },
|
|
.Nl,
|
|
.{ .StringLiteral = .None },
|
|
.Nl,
|
|
.Hash,
|
|
.Keyword_define,
|
|
.{ .StringLiteral = .None },
|
|
.{ .StringLiteral = .None },
|
|
});
|
|
}
|
|
|
|
test "string prefix" {
|
|
expectTokens(
|
|
\\"foo"
|
|
\\u"foo"
|
|
\\u8"foo"
|
|
\\U"foo"
|
|
\\L"foo"
|
|
\\'foo'
|
|
\\u'foo'
|
|
\\U'foo'
|
|
\\L'foo'
|
|
\\
|
|
, &[_]Token.Id{
|
|
.{ .StringLiteral = .None },
|
|
.Nl,
|
|
.{ .StringLiteral = .Utf16 },
|
|
.Nl,
|
|
.{ .StringLiteral = .Utf8 },
|
|
.Nl,
|
|
.{ .StringLiteral = .Utf32 },
|
|
.Nl,
|
|
.{ .StringLiteral = .Wide },
|
|
.Nl,
|
|
.{ .CharLiteral = .None },
|
|
.Nl,
|
|
.{ .CharLiteral = .Utf16 },
|
|
.Nl,
|
|
.{ .CharLiteral = .Utf32 },
|
|
.Nl,
|
|
.{ .CharLiteral = .Wide },
|
|
.Nl,
|
|
});
|
|
}
|
|
|
|
test "num suffixes" {
|
|
expectTokens(
|
|
\\ 1.0f 1.0L 1.0 .0 1.
|
|
\\ 0l 0lu 0ll 0llu 0
|
|
\\ 1u 1ul 1ull 1
|
|
\\
|
|
, &[_]Token.Id{
|
|
.{ .FloatLiteral = .F },
|
|
.{ .FloatLiteral = .L },
|
|
.{ .FloatLiteral = .None },
|
|
.{ .FloatLiteral = .None },
|
|
.{ .FloatLiteral = .None },
|
|
.Nl,
|
|
.{ .IntegerLiteral = .L },
|
|
.{ .IntegerLiteral = .LU },
|
|
.{ .IntegerLiteral = .LL },
|
|
.{ .IntegerLiteral = .LLU },
|
|
.{ .IntegerLiteral = .None },
|
|
.Nl,
|
|
.{ .IntegerLiteral = .U },
|
|
.{ .IntegerLiteral = .LU },
|
|
.{ .IntegerLiteral = .LLU },
|
|
.{ .IntegerLiteral = .None },
|
|
.Nl,
|
|
});
|
|
}
|
|
|
|
fn expectTokens(source: []const u8, expected_tokens: []const Token.Id) void {
|
|
var tokenizer = Tokenizer{
|
|
.source = &Source{
|
|
.buffer = source,
|
|
.file_name = undefined,
|
|
.tokens = undefined,
|
|
},
|
|
};
|
|
for (expected_tokens) |expected_token_id| {
|
|
const token = tokenizer.next();
|
|
if (!std.meta.eql(token.id, expected_token_id)) {
|
|
std.debug.panic("expected {}, found {}\n", .{ @tagName(expected_token_id), @tagName(token.id) });
|
|
}
|
|
}
|
|
const last_token = tokenizer.next();
|
|
std.testing.expect(last_token.id == .Eof);
|
|
}
|