mirror of
https://github.com/ProgramSnail/pass_strategy_synthesis.git
synced 2026-03-11 18:47:08 +00:00
model fixes, model for correct declarations & multiarg functions
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parent
72805e06c9
commit
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1 changed files with 87 additions and 94 deletions
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@ -3,7 +3,7 @@
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// #import "@preview/zebraw:0.5.0": *
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// #show: zebraw
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#import "@preview/curryst:0.6.0": rule, prooftree, rule-set
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#import "@preview/xarrow:0.4.0": xarrow
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#import "@preview/xarrow:0.4.0": xarrow, xarrowDashed
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= Формальная модель используемого языка
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@ -11,78 +11,81 @@
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#h(10pt)
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#let tag = `tag`
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#let value = `value`
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#let stmt = `stmt`
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#let decl = `decl`
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#let prog = `prog`
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#bnf(
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Prod(
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`tag`,
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{
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Or[`Ref`][pass by reference]
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Or[`Value`][copy]
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Or[$ast.basic$][pass by reference]
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Or[$!$][copy]
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}
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),
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Prod(
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`value`,
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{
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Or[`Unit`][cell with some value]
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Or[`Bot`][spoiled cell]
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}
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),
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Prod(
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`arg`,
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{
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Or[`RValue`][new value, no associated variable]
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Or[`LValue` $d$][value from some variable]
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Or[$0$][cell with some value]
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Or[$bot$][spoiled cell]
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}
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),
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// Prod(
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// `arg`,
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// {
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// Or[$0$][new value, no associated variable]
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// Or[$ amp d$][value from some variable]
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// }
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// ),
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Prod(
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`stmt`,
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{
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Or[$f($`args`$)$][call function by id]
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Or[`write` $d$][write to variable]
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Or[`read` $d$][read from variable]
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Or[`CALL` $f space overline(x)$][call function by id]
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Or[`WRITE` $x$][write to variable]
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Or[`READ` $x$][read from variable]
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}
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),
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Prod(
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`body`,
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`decl`,
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{
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Or[`body` `stmt`][with statement]
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Or[$epsilon$][empty body]
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}
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),
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Prod(
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`fun_decl`,
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{
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Or[`body`][function body]
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Or[`tag` `fun_decl`][with argument pass strategy annotation]
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Or[ovreline(stmt)][function body]
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Or[$lambda #[`tag`] a.$ `decl`][with argument pass strategy annotation]
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}
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),
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Prod(
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`prog`,
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{
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Or[`fun_decl`][main function]
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Or[`fun_decl` `prog`][with supplimentary funcitons]
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Or[`decl`][main function]
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Or[`decl` `prog`][with supplimentary funcitons]
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}
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),
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)
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#align(center, [$d, f in NN,$ `args` $in NN ast.basic$])
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== Семантика статического интерпретатора
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#h(10pt)
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$V := {0, bot}$ - значения памяти
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$V := value$ - значения памяти
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$L := NN$ - позиции в памяти
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$X$ - можество переменных
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$sigma : X -> L$ - позиции памяти, соответстующие переменным контекста
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$sigma : X -> L$ - #[ позиции памяти, соответстующие переменным контекста,
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частично определённая функция ]
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$mu : NN -> V$ - память
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$mu : NN -> V$ - память, частично определённая функция
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$l in NN$ - длина используемого фрагмента памяти
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$M subset NN$ - множество испорченных ячеек памяти
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$DD : NN -> decl$ - определения функций, частично определённая функция
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$d in decl, s in stmt, f in NN, x in X, a in NN$
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$d space @ space overline(x)$ - запись применения функции (вида #decl) к аргументам
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#[
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#let cl = $chevron.l$
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@ -111,36 +114,74 @@ $M subset NN$ - множество испорченных ячеек памят
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#h(10pt)
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#align(center, line())
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#align(center, prooftree(
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vertical-spacing: 4pt,
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rule(
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name: [ $f(x), space f(ast.basic a) = e$],
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$cl [a -> sigma(x)], mu, l, nothing cr
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xarrow(e)
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cl sigma, mu', l', M' cr$,
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$mu' =>^M' gamma$,
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name: [ $(lambda ast.basic a. d) x$],
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$cl sigma, mu, l, M cr
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xarrow(f(ast.basic x))
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cl sigma, gamma|_[0, l), l, M cr$,
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xarrowDashed(d space @ space overline(y))
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cl sigma, mu', l', M' cr$,
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$cl sigma, mu, l, M cr
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xarrowDashed((lambda ast.basic a. d) space @ space x space overline(y))
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cl sigma, mu', l', M' cr$,
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)
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))
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#align(center, prooftree(
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vertical-spacing: 4pt,
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rule(
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name: [ $f(x), space f(a) = e$],
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name: [ $(lambda !a. d) x$],
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$cl [a -> l], mu, l + 1, nothing cr
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xarrow(e)
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cl sigma, mu', l', M' cr$,
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$cl sigma [a <- l], mu, l + 1, M cr
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xarrowDashed(d space @ space overline(y))
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cl sigma', mu', l', M' cr$,
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$cl sigma, mu, l, M cr
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xarrowDashed((lambda !a. d) space @ space x space overline(y))
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cl sigma', mu', l', M' cr$,
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)
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))
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#align(center, prooftree(
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vertical-spacing: 4pt,
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rule(
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name: [decl body],
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$cl sigma, mu, l, M cr
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attach(stretch(->)^overline(s), tr: *)
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cl sigma', mu', l', M' cr$,
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$d = overline(s)$,
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$cl sigma, mu, l, M cr
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xarrowDashed(d space @)
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cl sigma', mu', l', M' cr$,
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)
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))
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#h(10pt)
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#align(center, line())
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#align(center, prooftree(
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vertical-spacing: 4pt,
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rule(
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name: [ CALL $f space overline(x)$],
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$cl [], mu, l, nothing cr
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xarrowDashed(d space @ space overline(x))
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cl sigma', mu', l', M' cr$,
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$mu' =>^M' gamma$,
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$DD(f) := d$,
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$cl sigma, mu, l, M cr
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xarrow(f(x))
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xarrow("CALL" f space overline(x))
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cl sigma, gamma|_[0, l), l, M cr$,
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)
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))
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@ -170,51 +211,3 @@ $M subset NN$ - множество испорченных ячеек памят
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))
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]
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== Пример аннтаций аргументов
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#h(10pt)
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#align(center, grid(
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columns: 3,
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gutter: 5%,
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```
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def f(?fx x, ?fy y) {
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read(x);
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write(x);
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read(y);
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}
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def w(?wx x) {
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write(x);
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}
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```,
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```
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def g(?gx x, ?gy y) {
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write(x);
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write(y);
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read(x);
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read(y);
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}
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def r(?rx x) {
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read(x);
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}
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```,
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```
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def main(x, y, z, k) {
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w(x);
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r(x); // -> ?wx != ref
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f(x, y);
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r(y);
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g(z, k);
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w(z);
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f(y, z);
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r(k); // -> ?gy != ref
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}
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```
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))
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```
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-> ?fx = ref, ?fy = ref, ?wx = copy, ?gx = ref, ?gy = copy, ?rx = ref
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...
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-> ?fx = copy, ?fy = copy, ?wx = copy, ?gx = copy, ?gy = copy, ?rx = copy
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```
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