Translate a bunch of the material (lltrans, llasm, abi) from rustboot to rustc, and move files around.

1 files changed, 348 insertions, 0 deletions

diff --git a/src/comp/front/token.rs b/src/comp/front/token.rs
new file mode 100644
index 00000000..b9b2fa07
--- /dev/null
+++ b/src/comp/front/token.rs
@@ -0,0 +1,348 @@
+import util.common.ty_mach;
+import util.common.ty_mach_to_str;
+import util.common.new_str_hash;
+import std._int;
+import std._uint;
+
+tag binop {
+    PLUS;
+    MINUS;
+    STAR;
+    SLASH;
+    PERCENT;
+    CARET;
+    AND;
+    OR;
+    LSL;
+    LSR;
+    ASR;
+}
+
+tag token {
+    /* Expression-operator symbols. */
+    EQ;
+    LT;
+    LE;
+    EQEQ;
+    NE;
+    GE;
+    GT;
+    ANDAND;
+    OROR;
+    NOT;
+    TILDE;
+
+    BINOP(binop);
+    BINOPEQ(binop);
+
+    AS;
+    WITH;
+
+    /* Structural symbols */
+    AT;
+    DOT;
+    COMMA;
+    SEMI;
+    COLON;
+    QUES;
+    RARROW;
+    SEND;
+    LARROW;
+    LPAREN;
+    RPAREN;
+    LBRACKET;
+    RBRACKET;
+    LBRACE;
+    RBRACE;
+
+    /* Module and crate keywords */
+    MOD;
+    USE;
+    AUTH;
+    META;
+
+    /* Metaprogramming keywords */
+    SYNTAX;
+    POUND;
+
+    /* Statement keywords */
+    IF;
+    ELSE;
+    DO;
+    WHILE;
+    ALT;
+    CASE;
+
+    FAIL;
+    DROP;
+
+    IN;
+    FOR;
+    EACH;
+    PUT;
+    RET;
+    BE;
+
+    /* Type and type-state keywords */
+    TYPE;
+    CHECK;
+    CLAIM;
+    PROVE;
+
+    /* Effect keywords */
+    IO;
+    STATE;
+    UNSAFE;
+
+    /* Type qualifiers */
+    NATIVE;
+    AUTO;
+    MUTABLE;
+
+    /* Name management */
+    IMPORT;
+    EXPORT;
+
+    /* Value / stmt declarators */
+    LET;
+    CONST;
+
+    /* Magic runtime services */
+    LOG;
+    SPAWN;
+    BIND;
+    THREAD;
+    YIELD;
+    JOIN;
+
+    /* Literals */
+    LIT_INT(int);
+    LIT_UINT(uint);
+    LIT_MACH_INT(ty_mach, int);
+    LIT_STR(str);
+    LIT_CHAR(char);
+    LIT_BOOL(bool);
+
+    /* Name components */
+    IDENT(str);
+    IDX(int);
+    UNDERSCORE;
+
+    /* Reserved type names */
+    BOOL;
+    INT;
+    UINT;
+    FLOAT;
+    CHAR;
+    STR;
+    MACH(ty_mach);
+
+    /* Algebraic type constructors */
+    REC;
+    TUP;
+    TAG;
+    VEC;
+    ANY;
+
+    /* Callable type constructors */
+    FN;
+    ITER;
+
+    /* Object type */
+    OBJ;
+
+    /* Comm and task types */
+    CHAN;
+    PORT;
+    TASK;
+
+    BRACEQUOTE(str);
+    EOF;
+}
+
+fn binop_to_str(binop o) -> str {
+    alt (o) {
+        case (PLUS) { ret "+"; }
+        case (MINUS) { ret "-"; }
+        case (STAR) { ret "*"; }
+        case (SLASH) { ret "/"; }
+        case (PERCENT) { ret "%"; }
+        case (CARET) { ret "^"; }
+        case (AND) { ret "&"; }
+        case (OR) { ret "|"; }
+        case (LSL) { ret "<<"; }
+        case (LSR) { ret ">>"; }
+        case (ASR) { ret ">>>"; }
+    }
+}
+
+fn to_str(token t) -> str {
+    alt (t) {
+
+        case (EQ) { ret "="; }
+        case (LT) { ret "<"; }
+        case (LE) { ret "<="; }
+        case (EQEQ) { ret "=="; }
+        case (NE) { ret "!="; }
+        case (GE) { ret ">="; }
+        case (GT) { ret ">"; }
+        case (NOT) { ret "!"; }
+        case (TILDE) { ret "~"; }
+        case (OROR) { ret "||"; }
+        case (ANDAND) { ret "&&"; }
+
+        case (BINOP(?op)) { ret binop_to_str(op); }
+        case (BINOPEQ(?op)) { ret binop_to_str(op) + "="; }
+
+        case (AS) { ret "as"; }
+        case (WITH) { ret "with"; }
+
+
+        /* Structural symbols */
+        case (AT) { ret "@"; }
+        case (DOT) { ret "."; }
+        case (COMMA) { ret ","; }
+        case (SEMI) { ret ";"; }
+        case (COLON) { ret ":"; }
+        case (QUES) { ret "?"; }
+        case (RARROW) { ret "->"; }
+        case (SEND) { ret "<|"; }
+        case (LARROW) { ret "<-"; }
+        case (LPAREN) { ret "("; }
+        case (RPAREN) { ret ")"; }
+        case (LBRACKET) { ret "["; }
+        case (RBRACKET) { ret "]"; }
+        case (LBRACE) { ret "{"; }
+        case (RBRACE) { ret "}"; }
+
+        /* Module and crate keywords */
+        case (MOD) { ret "mod"; }
+        case (USE) { ret "use"; }
+        case (AUTH) { ret "auth"; }
+        case (META) { ret "meta"; }
+
+        /* Metaprogramming keywords */
+        case (SYNTAX) { ret "syntax"; }
+        case (POUND) { ret "#"; }
+
+        /* Statement keywords */
+        case (IF) { ret "if"; }
+        case (ELSE) { ret "else"; }
+        case (DO) { ret "do"; }
+        case (WHILE) { ret "while"; }
+        case (ALT) { ret "alt"; }
+        case (CASE) { ret "case"; }
+
+        case (FAIL) { ret "fail"; }
+        case (DROP) { ret "drop"; }
+
+        case (IN) { ret "in"; }
+        case (FOR) { ret "for"; }
+        case (EACH) { ret "each"; }
+        case (PUT) { ret "put"; }
+        case (RET) { ret "ret"; }
+        case (BE) { ret "be"; }
+
+        /* Type and type-state keywords */
+        case (TYPE) { ret "type"; }
+        case (CHECK) { ret "check"; }
+        case (CLAIM) { ret "claim"; }
+        case (PROVE) { ret "prove"; }
+
+        /* Effect keywords */
+        case (IO) { ret "io"; }
+        case (STATE) { ret "state"; }
+        case (UNSAFE) { ret "unsafe"; }
+
+        /* Type qualifiers */
+        case (NATIVE) { ret "native"; }
+        case (AUTO) { ret "auto"; }
+        case (MUTABLE) { ret "mutable"; }
+
+        /* Name management */
+        case (IMPORT) { ret "import"; }
+        case (EXPORT) { ret "export"; }
+
+        /* Value / stmt declarators */
+        case (LET) { ret "let"; }
+        case (CONST) { ret "const"; }
+
+        /* Magic runtime services */
+        case (LOG) { ret "log"; }
+        case (SPAWN) { ret "spawn"; }
+        case (BIND) { ret "bind"; }
+        case (THREAD) { ret "thread"; }
+        case (YIELD) { ret "yield"; }
+        case (JOIN) { ret "join"; }
+
+        /* Literals */
+        case (LIT_INT(?i)) { ret _int.to_str(i, 10u); }
+        case (LIT_UINT(?u)) { ret _uint.to_str(u, 10u); }
+        case (LIT_MACH_INT(?tm, ?i)) {
+            ret  _int.to_str(i, 10u)
+                + "_" + ty_mach_to_str(tm);
+        }
+
+        case (LIT_STR(?s)) {
+            // FIXME: escape.
+            ret "\"" + s + "\"";
+        }
+        case (LIT_CHAR(?c)) {
+            // FIXME: escape and encode.
+            auto tmp = "'";
+            tmp += c as u8;
+            tmp += '\'' as u8;
+            ret tmp;
+        }
+
+        case (LIT_BOOL(?b)) {
+            if (b) { ret "true"; } else { ret "false"; }
+        }
+
+        /* Name components */
+        case (IDENT(?s)) { auto si = "ident:"; si += s; ret si; }
+        case (IDX(?i)) { ret "_" + _int.to_str(i, 10u); }
+        case (UNDERSCORE) { ret "_"; }
+
+        /* Reserved type names */
+        case (BOOL) { ret "bool"; }
+        case (INT) { ret "int"; }
+        case (UINT) { ret "uint"; }
+        case (FLOAT) { ret "float"; }
+        case (CHAR) { ret "char"; }
+        case (STR) { ret "str"; }
+        case (MACH(?tm)) { ret ty_mach_to_str(tm); }
+
+        /* Algebraic type constructors */
+        case (REC) { ret "rec"; }
+        case (TUP) { ret "tup"; }
+        case (TAG) { ret "tag"; }
+        case (VEC) { ret "vec"; }
+        case (ANY) { ret "any"; }
+
+        /* Callable type constructors */
+        case (FN) { ret "fn"; }
+        case (ITER) { ret "iter"; }
+
+        /* Object type */
+        case (OBJ) { ret "obj"; }
+
+        /* Comm and task types */
+        case (CHAN) { ret "chan"; }
+        case (PORT) { ret "port"; }
+        case (TASK) { ret "task"; }
+
+        case (BRACEQUOTE(_)) { ret "<bracequote>"; }
+        case (EOF) { ret "<eof>"; }
+    }
+}
+
+
+
+// Local Variables:
+// fill-column: 78;
+// indent-tabs-mode: nil
+// c-basic-offset: 4
+// buffer-file-coding-system: utf-8-unix
+// compile-command: "make -k -C ../.. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
+// End: