|
adamc@1
|
1 (* Copyright (c) 2008, Adam Chlipala
|
|
adamc@1
|
2 * All rights reserved.
|
|
adamc@1
|
3 *
|
|
adamc@1
|
4 * Redistribution and use in source and binary forms, with or without
|
|
adamc@1
|
5 * modification, are permitted provided that the following conditions are met:
|
|
adamc@1
|
6 *
|
|
adamc@1
|
7 * - Redistributions of source code must retain the above copyright notice,
|
|
adamc@1
|
8 * this list of conditions and the following disclaimer.
|
|
adamc@1
|
9 * - Redistributions in binary form must reproduce the above copyright notice,
|
|
adamc@1
|
10 * this list of conditions and the following disclaimer in the documentation
|
|
adamc@1
|
11 * and/or other materials provided with the distribution.
|
|
adamc@1
|
12 * - The names of contributors may not be used to endorse or promote products
|
|
adamc@1
|
13 * derived from this software without specific prior written permission.
|
|
adamc@1
|
14 *
|
|
adamc@1
|
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
adamc@1
|
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
adamc@1
|
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
adamc@1
|
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
adamc@1
|
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
adamc@1
|
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
adamc@1
|
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
adamc@1
|
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
adamc@1
|
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
adamc@1
|
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
adamc@1
|
25 * POSSIBILITY OF SUCH DAMAGE.
|
|
adamc@1
|
26 *)
|
|
adamc@1
|
27
|
|
adamc@1
|
28 (* Grammar for Laconic/Web programs *)
|
|
adamc@1
|
29
|
|
adamc@4
|
30 open Source
|
|
adamc@1
|
31
|
|
adamc@1
|
32 val s = ErrorMsg.spanOf
|
|
adamc@1
|
33
|
|
adamc@1
|
34 %%
|
|
adamc@1
|
35 %header (functor LacwebLrValsFn(structure Token : TOKEN))
|
|
adamc@1
|
36
|
|
adamc@1
|
37 %term
|
|
adamc@1
|
38 EOF
|
|
adamc@1
|
39 | SYMBOL of string | CSYMBOL of string
|
|
adamc@1
|
40 | LPAREN | RPAREN | LBRACK | RBRACK | LBRACE | RBRACE
|
|
adamc@1
|
41 | EQ | COMMA | COLON | DCOLON | TCOLON | DOT | HASH
|
|
adamc@8
|
42 | CON | LTYPE | VAL
|
|
adamc@7
|
43 | TYPE | NAME
|
|
adamc@1
|
44 | ARROW | LARROW | DARROW
|
|
adamc@1
|
45 | FN | PLUSPLUS | DOLLAR
|
|
adamc@1
|
46
|
|
adamc@1
|
47 %nonterm
|
|
adamc@1
|
48 file of decl list
|
|
adamc@1
|
49 | decls of decl list
|
|
adamc@1
|
50 | decl of decl
|
|
adamc@1
|
51
|
|
adamc@1
|
52 | kind of kind
|
|
adamc@1
|
53 | kcolon of explicitness
|
|
adamc@1
|
54
|
|
adamc@1
|
55 | cexp of con
|
|
adamc@1
|
56 | capps of con
|
|
adamc@1
|
57 | cterm of con
|
|
adamc@1
|
58 | ident of con
|
|
adamc@1
|
59 | rcon of (con * con) list
|
|
adamc@1
|
60 | rcone of (con * con) list
|
|
adamc@1
|
61
|
|
adamc@8
|
62 | eexp of exp
|
|
adamc@8
|
63 | eapps of exp
|
|
adamc@8
|
64 | eterm of exp
|
|
adamc@8
|
65
|
|
adamc@1
|
66 %verbose (* print summary of errors *)
|
|
adamc@1
|
67 %pos int (* positions *)
|
|
adamc@1
|
68 %start file
|
|
adamc@1
|
69 %pure
|
|
adamc@1
|
70 %eop EOF
|
|
adamc@1
|
71 %noshift EOF
|
|
adamc@1
|
72
|
|
adamc@1
|
73 %name Lacweb
|
|
adamc@1
|
74
|
|
adamc@1
|
75 %nonassoc DARROW
|
|
adamc@1
|
76 %nonassoc COLON
|
|
adamc@6
|
77 %nonassoc DCOLON TCOLON
|
|
adamc@1
|
78 %right COMMA
|
|
adamc@1
|
79 %right ARROW LARROW
|
|
adamc@1
|
80 %right PLUSPLUS
|
|
adamc@1
|
81 %nonassoc DOLLAR
|
|
adamc@1
|
82 %left DOT
|
|
adamc@1
|
83
|
|
adamc@1
|
84 %%
|
|
adamc@1
|
85
|
|
adamc@1
|
86 file : decls (decls)
|
|
adamc@1
|
87
|
|
adamc@1
|
88 decls : ([])
|
|
adamc@1
|
89 | decl decls (decl :: decls)
|
|
adamc@1
|
90
|
|
adamc@1
|
91 decl : CON SYMBOL EQ cexp (DCon (SYMBOL, NONE, cexp), s (CONleft, cexpright))
|
|
adamc@1
|
92 | CON SYMBOL DCOLON kind EQ cexp (DCon (SYMBOL, SOME kind, cexp), s (CONleft, cexpright))
|
|
adamc@7
|
93 | LTYPE SYMBOL EQ cexp (DCon (SYMBOL, SOME (KType, s (LTYPEleft, cexpright)), cexp),
|
|
adamc@7
|
94 s (LTYPEleft, cexpright))
|
|
adamc@8
|
95 | VAL SYMBOL EQ eexp (DVal (SYMBOL, NONE, eexp), s (VALleft, eexpright))
|
|
adamc@8
|
96 | VAL SYMBOL COLON cexp EQ eexp (DVal (SYMBOL, SOME cexp, eexp), s (VALleft, eexpright))
|
|
adamc@1
|
97
|
|
adamc@1
|
98 kind : TYPE (KType, s (TYPEleft, TYPEright))
|
|
adamc@1
|
99 | NAME (KName, s (NAMEleft, NAMEright))
|
|
adamc@1
|
100 | LBRACE kind RBRACE (KRecord kind, s (LBRACEleft, RBRACEright))
|
|
adamc@1
|
101 | kind ARROW kind (KArrow (kind1, kind2), s (kind1left, kind2right))
|
|
adamc@1
|
102 | LPAREN kind RPAREN (#1 kind, s (LPARENleft, RPARENright))
|
|
adamc@1
|
103
|
|
adamc@1
|
104 capps : cterm (cterm)
|
|
adamc@1
|
105 | capps cterm (CApp (capps, cterm), s (cappsleft, ctermright))
|
|
adamc@1
|
106
|
|
adamc@1
|
107 cexp : capps (capps)
|
|
adamc@1
|
108 | cexp ARROW cexp (TFun (cexp1, cexp2), s (cexp1left, cexp2right))
|
|
adamc@1
|
109 | SYMBOL kcolon kind ARROW cexp (TCFun (kcolon, SYMBOL, kind, cexp), s (SYMBOLleft, cexpright))
|
|
adamc@1
|
110
|
|
adamc@1
|
111 | cexp PLUSPLUS cexp (CConcat (cexp1, cexp2), s (cexp1left, cexp1right))
|
|
adamc@1
|
112
|
|
adamc@8
|
113 | FN SYMBOL DCOLON kind DARROW cexp (CAbs (SYMBOL, kind, cexp), s (FNleft, cexpright))
|
|
adamc@1
|
114
|
|
adamc@8
|
115 | LPAREN cexp RPAREN DCOLON kind (CAnnot (cexp, kind), s (LPARENleft, kindright))
|
|
adamc@6
|
116
|
|
adamc@1
|
117 kcolon : DCOLON (Explicit)
|
|
adamc@1
|
118 | TCOLON (Implicit)
|
|
adamc@1
|
119
|
|
adamc@1
|
120 cterm : LPAREN cexp RPAREN (#1 cexp, s (LPARENleft, RPARENright))
|
|
adamc@1
|
121 | LBRACK rcon RBRACK (CRecord rcon, s (LBRACKleft, RBRACKright))
|
|
adamc@1
|
122 | LBRACE rcone RBRACE (TRecord (CRecord rcone, s (LBRACEleft, RBRACEright)),
|
|
adamc@1
|
123 s (LBRACEleft, RBRACEright))
|
|
adamc@1
|
124 | DOLLAR cterm (TRecord cterm, s (DOLLARleft, ctermright))
|
|
adamc@1
|
125 | HASH CSYMBOL (CName CSYMBOL, s (HASHleft, CSYMBOLright))
|
|
adamc@1
|
126
|
|
adamc@1
|
127 | SYMBOL (CVar SYMBOL, s (SYMBOLleft, SYMBOLright))
|
|
adamc@1
|
128
|
|
adamc@1
|
129 rcon : ([])
|
|
adamc@1
|
130 | ident EQ cexp ([(ident, cexp)])
|
|
adamc@1
|
131 | ident EQ cexp COMMA rcon ((ident, cexp) :: rcon)
|
|
adamc@1
|
132
|
|
adamc@1
|
133 rcone : ([])
|
|
adamc@1
|
134 | ident COLON cexp ([(ident, cexp)])
|
|
adamc@1
|
135 | ident COLON cexp COMMA rcone ((ident, cexp) :: rcone)
|
|
adamc@1
|
136
|
|
adamc@1
|
137 ident : CSYMBOL (CName CSYMBOL, s (CSYMBOLleft, CSYMBOLright))
|
|
adamc@1
|
138 | SYMBOL (CVar SYMBOL, s (SYMBOLleft, SYMBOLright))
|
|
adamc@8
|
139
|
|
adamc@8
|
140 eapps : eterm (eterm)
|
|
adamc@8
|
141 | eapps eterm (EApp (eapps, eterm), s (eappsleft, etermright))
|
|
adamc@8
|
142 | eapps LBRACK cexp RBRACK (ECApp (eapps, cexp), s (eappsleft, RBRACKright))
|
|
adamc@8
|
143
|
|
adamc@8
|
144 eexp : eapps (eapps)
|
|
adamc@8
|
145 | FN SYMBOL kcolon kind DARROW eexp (ECAbs (kcolon, SYMBOL, kind, eexp), s (FNleft, eexpright))
|
|
adamc@8
|
146 | FN SYMBOL COLON cexp DARROW eexp (EAbs (SYMBOL, SOME cexp, eexp), s (FNleft, eexpright))
|
|
adamc@8
|
147 | FN SYMBOL DARROW eexp (EAbs (SYMBOL, NONE, eexp), s (FNleft, eexpright))
|
|
adamc@8
|
148
|
|
adamc@8
|
149 | LPAREN eexp RPAREN DCOLON cexp (EAnnot (eexp, cexp), s (LPARENleft, cexpright))
|
|
adamc@8
|
150
|
|
adamc@8
|
151 eterm : LPAREN eexp RPAREN (#1 eexp, s (LPARENleft, RPARENright))
|
|
adamc@8
|
152
|
|
adamc@8
|
153 | SYMBOL (EVar SYMBOL, s (SYMBOLleft, SYMBOLright))
|
