author | wenzelm |
Mon, 08 Dec 2014 22:42:12 +0100 | |
changeset 59112 | e670969f34df |
parent 59067 | dd8ec9138112 |
child 59127 | 723b11f8ffbf |
permissions | -rw-r--r-- |
24581 | 1 |
(* Title: Pure/ML/ml_context.ML |
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Author: Makarius |
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ML context and antiquotations. |
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*) |
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signature ML_CONTEXT = |
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sig |
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val the_generic_context: unit -> Context.generic |
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renamed ML_Context.the_context to ML_Context.the_global_context;
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val the_global_context: unit -> theory |
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val the_local_context: unit -> Proof.context |
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ML_Context.thm and ML_Context.thms no longer pervasive;
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val thm: xstring -> thm |
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val thms: xstring -> thm list |
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val exec: (unit -> unit) -> Context.generic -> Context.generic |
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val check_antiquotation: Proof.context -> xstring * Position.T -> string |
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val variant: string -> Proof.context -> string * Proof.context |
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type decl = Proof.context -> string * string |
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val value_decl: string -> string -> Proof.context -> decl * Proof.context |
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val add_antiquotation: binding -> (Token.src -> Proof.context -> decl * Proof.context) -> |
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theory -> theory |
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val print_antiquotations: Proof.context -> unit |
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export eval_antiquotes: refined version that operates on ML tokens;
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val eval_antiquotes: ML_Lex.token Antiquote.antiquote list * Position.T -> |
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export eval_antiquotes: refined version that operates on ML tokens;
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Context.generic option -> (ML_Lex.token list * ML_Lex.token list) * Context.generic option |
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val eval: ML_Compiler.flags -> Position.T -> ML_Lex.token Antiquote.antiquote list -> unit |
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val eval_file: ML_Compiler.flags -> Path.T -> unit |
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val eval_source: ML_Compiler.flags -> Input.source -> unit |
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val eval_in: Proof.context option -> ML_Compiler.flags -> Position.T -> |
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replaced ML_Lex.read_antiq by more concise ML_Lex.read, which includes full read/report with explicit position information;
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ML_Lex.token Antiquote.antiquote list -> unit |
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val eval_source_in: Proof.context option -> ML_Compiler.flags -> Input.source -> unit |
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val expression: Position.range -> string -> string -> string -> |
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ML_Lex.token Antiquote.antiquote list -> Context.generic -> Context.generic |
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end |
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structure ML_Context: ML_CONTEXT = |
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struct |
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||
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(** implicit ML context **) |
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val the_generic_context = Context.the_thread_data; |
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val the_global_context = Context.theory_of o the_generic_context; |
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val the_local_context = Context.proof_of o the_generic_context; |
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fun thm name = Proof_Context.get_thm (the_local_context ()) name; |
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fun thms name = Proof_Context.get_thms (the_local_context ()) name; |
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fun exec (e: unit -> unit) context = |
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(case Context.setmp_thread_data (SOME context) (fn () => (e (); Context.thread_data ())) () of |
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SOME context' => context' |
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| NONE => error "Missing context after execution"); |
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(** ML antiquotations **) |
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(* unique names *) |
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structure Names = Proof_Data |
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( |
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type T = Name.context; |
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val init_names = ML_Syntax.reserved |> fold Name.declare ["ML_context", "ML_print_depth"]; |
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fun init _ = init_names; |
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); |
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fun variant a ctxt = |
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let |
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val names = Names.get ctxt; |
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val (b, names') = Name.variant (Name.desymbolize (SOME false) a) names; |
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val ctxt' = Names.put names' ctxt; |
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in (b, ctxt') end; |
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(* decl *) |
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type decl = Proof.context -> string * string; (*final context -> ML env, ML body*) |
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fun value_decl a s ctxt = |
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let |
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val (b, ctxt') = variant a ctxt; |
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val env = "val " ^ b ^ " = " ^ s ^ ";\n"; |
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val body = "Isabelle." ^ b; |
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fun decl (_: Proof.context) = (env, body); |
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in (decl, ctxt') end; |
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(* theory data *) |
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86 |
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56069
451d5b73f8cf
simplified programming interface to define ML antiquotations -- NB: the transformed context ignores updates of the context parser;
wenzelm
parents:
56032
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structure Antiquotations = Theory_Data |
43560
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ML antiquotations are managed as theory data, with proper name space and entity markup;
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( |
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type T = (Token.src -> Proof.context -> decl * Proof.context) Name_Space.table; |
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Isabelle-specific implementation of quasi-abstract markup elements -- back to module arrangement before d83797ef0d2d;
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val empty : T = Name_Space.empty_table Markup.ML_antiquotationN; |
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val extend = I; |
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fun merge data : T = Name_Space.merge_tables data; |
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); |
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56069
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wenzelm
parents:
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95 |
val get_antiquotations = Antiquotations.get o Proof_Context.theory_of; |
451d5b73f8cf
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56070 | 97 |
fun check_antiquotation ctxt = |
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#1 o Name_Space.check (Context.Proof ctxt) (get_antiquotations ctxt); |
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simplified programming interface to define ML antiquotations -- NB: the transformed context ignores updates of the context parser;
wenzelm
parents:
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fun add_antiquotation name f thy = thy |
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|> Antiquotations.map (Name_Space.define (Context.Theory thy) true (name, f) #> snd); |
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wenzelm
parents:
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103 |
fun print_antiquotations ctxt = |
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wenzelm
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104 |
Pretty.big_list "ML antiquotations:" |
451d5b73f8cf
simplified programming interface to define ML antiquotations -- NB: the transformed context ignores updates of the context parser;
wenzelm
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105 |
(map (Pretty.mark_str o #1) (Name_Space.markup_table ctxt (get_antiquotations ctxt))) |
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|> Pretty.writeln; |
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107 |
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simplified programming interface to define ML antiquotations -- NB: the transformed context ignores updates of the context parser;
wenzelm
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108 |
fun apply_antiquotation src ctxt = |
58011
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tuned signature -- moved type src to Token, without aliases;
wenzelm
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57834
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109 |
let val (src', f) = Token.check_src ctxt (get_antiquotations ctxt) src |
56069
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simplified programming interface to define ML antiquotations -- NB: the transformed context ignores updates of the context parser;
wenzelm
parents:
56032
diff
changeset
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110 |
in f src' ctxt end; |
43563 | 111 |
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24574 | 112 |
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113 |
(* parsing and evaluation *) |
24574 | 114 |
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115 |
local |
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116 |
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24574 | 117 |
val antiq = |
56201 | 118 |
Parse.!!! (Parse.position Parse.xname -- Parse.args --| Scan.ahead Parse.eof) |
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119 |
>> uncurry Token.src; |
24574 | 120 |
|
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121 |
val begin_env0 = ML_Lex.tokenize "structure Isabelle =\nstruct\n"; |
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fun begin_env visible = |
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124 |
ML_Lex.tokenize |
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125 |
("structure Isabelle =\nstruct\n\ |
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126 |
\val ML_context = Context_Position.set_visible " ^ Bool.toString visible ^ |
57832 | 127 |
" (ML_Context.the_local_context ());\n\ |
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prefer dynamic ML_print_depth if context happens to be available;
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128 |
\val ML_print_depth =\n\ |
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129 |
\ let val default = ML_Options.get_print_depth ()\n\ |
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130 |
\ in fn () => ML_Options.get_print_depth_default default end;\n"); |
48776
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faster compilation of ML with antiquotations: static ML_context is bound once in auxiliary structure Isabelle;
wenzelm
parents:
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131 |
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export eval_antiquotes: refined version that operates on ML tokens;
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val end_env = ML_Lex.tokenize "end;"; |
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val reset_env = ML_Lex.tokenize "structure Isabelle = struct end"; |
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59112 | 135 |
fun expanding (Antiquote.Text tok) = ML_Lex.is_cartouche tok |
136 |
| expanding (Antiquote.Antiq _) = true; |
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export eval_antiquotes: refined version that operates on ML tokens;
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138 |
in |
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export eval_antiquotes: refined version that operates on ML tokens;
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3e3c2cd88cf1
export eval_antiquotes: refined version that operates on ML tokens;
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140 |
fun eval_antiquotes (ants, pos) opt_context = |
24574 | 141 |
let |
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142 |
val visible = |
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143 |
(case opt_context of |
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144 |
SOME (Context.Proof ctxt) => Context_Position.is_visible ctxt |
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| _ => true); |
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146 |
val opt_ctxt = Option.map (Context.Proof o Context.proof_of) opt_context; |
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148 |
val ((ml_env, ml_body), opt_ctxt') = |
59112 | 149 |
if forall (not o expanding) ants |
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then ((begin_env0, map (fn Antiquote.Text tok => tok) ants), opt_ctxt) |
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151 |
else |
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152 |
let |
59112 | 153 |
fun tokenize range = apply2 (ML_Lex.tokenize #> map (ML_Lex.set_range range)); |
53167 | 154 |
|
59112 | 155 |
fun expand (Antiquote.Antiq (ss, {range, ...})) ctxt = |
53167 | 156 |
let |
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plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
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157 |
val keywords = Thy_Header.get_keywords' ctxt; |
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changeset
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158 |
val (decl, ctxt') = |
58903 | 159 |
apply_antiquotation (Token.read_antiq keywords antiq (ss, #1 range)) ctxt; |
59112 | 160 |
in (decl #> tokenize range, ctxt') end |
161 |
| expand (Antiquote.Text tok) ctxt = |
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162 |
if ML_Lex.is_cartouche tok then |
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163 |
let |
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164 |
val range = ML_Lex.range_of tok; |
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165 |
val text = |
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166 |
Symbol_Pos.explode (ML_Lex.content_of tok, #1 range) |
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167 |
|> Symbol_Pos.cartouche_content |
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168 |
|> Symbol_Pos.implode_range range |> #1; |
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169 |
val (decl, ctxt') = |
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170 |
value_decl "input" |
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171 |
("Input.source true " ^ ML_Syntax.print_string text ^ " " ^ |
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172 |
ML_Syntax.atomic (ML_Syntax.print_range range)) ctxt; |
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173 |
in (decl #> tokenize range, ctxt') end |
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174 |
else (K ([], [tok]), ctxt); |
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53167 | 175 |
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176 |
val ctxt = |
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177 |
(case opt_ctxt of |
48992 | 178 |
NONE => error ("No context -- cannot expand ML antiquotations" ^ Position.here pos) |
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changeset
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179 |
| SOME ctxt => Context.proof_of ctxt); |
27378 | 180 |
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53167 | 181 |
val (decls, ctxt') = fold_map expand ants ctxt; |
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182 |
val (ml_env, ml_body) = |
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183 |
decls |> map (fn decl => decl ctxt') |> split_list |> apply2 flat; |
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184 |
in ((begin_env visible @ ml_env, ml_body), SOME (Context.Proof ctxt')) end; |
48776
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faster compilation of ML with antiquotations: static ML_context is bound once in auxiliary structure Isabelle;
wenzelm
parents:
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diff
changeset
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185 |
in ((ml_env @ end_env, ml_body), opt_ctxt') end; |
24574 | 186 |
|
56275
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added command 'SML_file' for Standard ML without Isabelle/ML add-ons;
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187 |
fun eval flags pos ants = |
24574 | 188 |
let |
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redirect ML_Compiler reports more directly: only the (big) parse tree report is deferred via Execution.print (NB: this does not work for asynchronous "diag" commands);
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189 |
val non_verbose = ML_Compiler.verbose false flags; |
56275
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added command 'SML_file' for Standard ML without Isabelle/ML add-ons;
wenzelm
parents:
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changeset
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190 |
|
28270
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explicit handling of ML environment within generic context;
wenzelm
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(*prepare source text*) |
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val ((env, body), env_ctxt) = eval_antiquotes (ants, pos) (Context.thread_data ()); |
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val _ = |
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(case Option.map Context.proof_of env_ctxt of |
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SOME ctxt => |
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if Config.get ctxt ML_Options.source_trace andalso Context_Position.is_visible ctxt |
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then tracing (cat_lines [ML_Lex.flatten env, ML_Lex.flatten body]) |
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else () |
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| NONE => ()); |
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|
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(*prepare static ML environment*) |
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val _ = |
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Context.setmp_thread_data |
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(Option.map (Context.mapping I (Context_Position.set_visible false)) env_ctxt) |
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(fn () => (ML_Compiler.eval non_verbose Position.none env; Context.thread_data ())) () |
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|> (fn NONE => () | SOME context' => Context.>> (ML_Env.inherit context')); |
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|
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val _ = ML_Compiler.eval flags pos body; |
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val _ = ML_Compiler.eval non_verbose Position.none reset_env; |
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in () end; |
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end; |
|
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||
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||
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(* derived versions *) |
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|
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fun eval_file flags path = |
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let val pos = Path.position path |
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in eval flags pos (ML_Lex.read_pos pos (File.read path)) end; |
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|
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fun eval_source flags source = |
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eval flags (Input.pos_of source) (ML_Lex.read_source (#SML flags) source); |
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223 |
|
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fun eval_in ctxt flags pos ants = |
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Context.setmp_thread_data (Option.map Context.Proof ctxt) |
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(fn () => eval flags pos ants) (); |
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|
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fun eval_source_in ctxt flags source = |
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Context.setmp_thread_data (Option.map Context.Proof ctxt) |
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(fn () => eval_source flags source) (); |
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|
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fun expression range name constraint body ants = |
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exec (fn () => |
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eval ML_Compiler.flags (#1 range) |
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(ML_Lex.read "Context.set_thread_data (SOME (let val " @ ML_Lex.read_set_range range name @ |
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ML_Lex.read (": " ^ constraint ^ " =") @ ants @ |
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ML_Lex.read ("in " ^ body ^ " end (ML_Context.the_generic_context ())));"))); |
|
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|
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end; |
240 |