cproc/token.c -rw-r--r-- 3.5 KiB View raw
                                                                                
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#include <assert.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "util.h"
#include "cc.h"

struct token tok;

const char *tokstr[] = {
	/* keyword */
	[TAUTO] = "auto",
	[TBREAK] = "break",
	[TCASE] = "case",
	[TCHAR] = "char",
	[TCONST] = "const",
	[TCONTINUE] = "continue",
	[TDEFAULT] = "default",
	[TDO] = "do",
	[TDOUBLE] = "double",
	[TELSE] = "else",
	[TENUM] = "enum",
	[TEXTERN] = "extern",
	[TFLOAT] = "float",
	[TFOR] = "for",
	[TGOTO] = "goto",
	[TIF] = "if",
	[TINLINE] = "inline",
	[TINT] = "int",
	[TLONG] = "long",
	[TREGISTER] = "register",
	[TRESTRICT] = "restrict",
	[TRETURN] = "return",
	[TSHORT] = "short",
	[TSIGNED] = "signed",
	[TSIZEOF] = "sizeof",
	[TSTATIC] = "static",
	[TSTRUCT] = "struct",
	[TSWITCH] = "switch",
	[TTYPEDEF] = "typedef",
	[TUNION] = "union",
	[TUNSIGNED] = "unsigned",
	[TVOID] = "void",
	[TVOLATILE] = "volatile",
	[TWHILE] = "while",
	[T_ALIGNAS] = "_Alignas",
	[T_ALIGNOF] = "_Alignof",
	[T_ATOMIC] = "_Atomic",
	[T_BOOL] = "_Bool",
	[T_COMPLEX] = "_Complex",
	[T_GENERIC] = "_Generic",
	[T_IMAGINARY] = "_Imaginary",
	[T_NORETURN] = "_Noreturn",
	[T_STATIC_ASSERT] = "_Static_assert",
	[T_THREAD_LOCAL] = "_Thread_local",
	[T__ASM__] = "__asm__",
	[T__ATTRIBUTE__] = "__attribute__",
	[T__TYPEOF__] = "__typeof__",

	/* punctuator */
	[TLBRACK] = "[",
	[TRBRACK] = "]",
	[TLPAREN] = "(",
	[TRPAREN] = ")",
	[TLBRACE] = "{",
	[TRBRACE] = "}",
	[TPERIOD] = ".",
	[TARROW] = "->",
	[TINC] = "++",
	[TDEC] = "--",
	[TBAND] = "&",
	[TMUL] = "*",
	[TADD] = "+",
	[TSUB] = "-",
	[TBNOT] = "~",
	[TLNOT] = "!",
	[TDIV] = "/",
	[TMOD] = "%",
	[TSHL] = "<<",
	[TSHR] = ">>",
	[TLESS] = "<",
	[TGREATER] = ">",
	[TLEQ] = "<=",
	[TGEQ] = ">=",
	[TEQL] = "==",
	[TNEQ] = "!=",
	[TXOR] = "^",
	[TBOR] = "|",
	[TLAND] = "&&",
	[TLOR] = "||",
	[TQUESTION] = "?",
	[TCOLON] = ":",
	[TCOLONCOLON] = "::",
	[TSEMICOLON] = ";",
	[TELLIPSIS] = "...",
	[TASSIGN] = "=",
	[TMULASSIGN] = "*=",
	[TDIVASSIGN] = "/=",
	[TMODASSIGN] = "%=",
	[TADDASSIGN] = "+=",
	[TSUBASSIGN] = "-=",
	[TSHLASSIGN] = "<<=",
	[TSHRASSIGN] = ">>=",
	[TBANDASSIGN] = "&=",
	[TXORASSIGN] = "^=",
	[TBORASSIGN] = "|=",
	[TCOMMA] = ",",
	[THASH] = "#",
	[THASHHASH] = "##",
};

void
tokprint(const struct token *t)
1 reference
{ const char *str; switch (t->kind) { case TIDENT: case TNUMBER: case TCHARCONST: case TSTRINGLIT: str = t->lit; break; case TNEWLINE: str = "\n"; break; case TEOF: return; default: str = tokstr[t->kind]; } if (!str) fatal("cannot print token %d", t->kind); fputs(str, stdout); } void tokdesc(char *buf, size_t len, enum tokenkind kind, const char *lit)
2 references
{ const char *class; bool quote; switch (kind) { case TIDENT: class = "identifier"; quote = true; break; case TNUMBER: class = "number"; quote = true; break; case TCHARCONST: class = "character"; quote = false; break; case TSTRINGLIT: class = "string"; quote = false; break; case TNEWLINE: class = "newline"; quote = true; break; default: class = NULL; lit = kind < LEN(tokstr) ? tokstr[kind] : NULL; } if (class && lit) snprintf(buf, len, quote ? "%s '%s'" : "%s %s", class, lit); else if (class) snprintf(buf, len, "%s", class); else if (lit) snprintf(buf, len, "'%s'", lit); else snprintf(buf, len, "<unknown>"); } _Noreturn void error(const struct location *loc, const char *fmt, ...)
159 references
{ va_list ap; fprintf(stderr, "%s:%zu:%zu: error: ", loc->file, loc->line, loc->col); va_start(ap, fmt); vfprintf(stderr, fmt, ap); va_end(ap); putc('\n', stderr); exit(1); }