mirrors/janet
1
0
Fork 0
mirror of https://github.com/janet-lang/janet synced 2024-12-27 00:40:26 +00:00
Code Issues 1 Releases Wiki Activity

Merge pull request #967 from uvtc/patch-2

Browse Source 
boot.janet docstrings (part 3, last part)
This commit is contained in:
Calvin Rose 2022-04-20 20:53:30 -05:00 committed by GitHub
commit c38d9134cd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 156 additions and 130 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

286
src/boot/boot.janet
View File

@ -546,19 +546,26 @@
The available verbs are: The available verbs are:
* `:iterate` - repeatedly evaluate and bind to the expression while it is * `:iterate` -- repeatedly evaluate and bind to the expression while it is
truthy. truthy.
* `:range` - loop over a range. The object should be a two-element tuple with
* `:range` -- loop over a range. The object should be a two-element tuple with
a start and end value, and an optional positive step. The range is half a start and end value, and an optional positive step. The range is half
open, [start, end). open, [start, end).
* `:range-to` - same as :range, but the range is inclusive [start, end].
* `:down` - loop over a range, stepping downwards. The object should be a * `:range-to` -- same as :range, but the range is inclusive [start, end].
* `:down` -- loop over a range, stepping downwards. The object should be a
two-element tuple with a start and (exclusive) end value, and an optional two-element tuple with a start and (exclusive) end value, and an optional
(positive!) step size. (positive!) step size.
* `:down-to` - same as :down, but the range is inclusive [start, end].
* `:keys` - iterate over the keys in a data structure. * `:down-to` -- same as :down, but the range is inclusive [start, end].
* `:pairs` - iterate over the key-value pairs as tuples in a data structure.
* `:in` - iterate over the values in a data structure or fiber. * `:keys` -- iterate over the keys in a data structure.
* `:pairs` -- iterate over the key-value pairs as tuples in a data structure.
* `:in` -- iterate over the values in a data structure or fiber.
`loop` also accepts conditionals to refine the looping further. Conditionals are of `loop` also accepts conditionals to refine the looping further. Conditionals are of
the form: the form:
@ -568,18 +575,24 @@
where `:modifier` is one of a set of keywords, and `argument` is keyword-dependent. where `:modifier` is one of a set of keywords, and `argument` is keyword-dependent.
`:modifier` can be one of: `:modifier` can be one of:
* `:while expression` - breaks from the current loop if `expression` is * `:while expression` -- breaks from the current loop if `expression` is
falsey. falsey.
* `:until expression` - breaks from the current loop if `expression` is
* `:until expression` -- breaks from the current loop if `expression` is
truthy. truthy.
* `:let bindings` - defines bindings inside the current loop as passed to the
* `:let bindings` -- defines bindings inside the current loop as passed to the
`let` macro. `let` macro.
* `:before form` - evaluates a form for a side effect before the next inner
* `:before form` -- evaluates a form for a side effect before the next inner
loop. loop.
* `:after form` - same as `:before`, but the side effect happens after the
* `:after form` -- same as `:before`, but the side effect happens after the
next inner loop. next inner loop.
* `:repeat n` - repeats the next inner loop `n` times.
* `:when condition` - only evaluates the current loop body when `condition` * `:repeat n` -- repeats the next inner loop `n` times.
* `:when condition` -- only evaluates the current loop body when `condition`
is true. is true.
The `loop` macro always evaluates to nil. The `loop` macro always evaluates to nil.
@ -1920,12 +1933,12 @@
### ###
(defdyn *macro-lints* (defdyn *macro-lints*
"Bound to an array of lint messgae that will be reported by the compiler inside a macro. ``Bound to an array of lint messages that will be reported by the compiler inside a macro.
To indicate an error or warning, a macro author should use `maclintf`.") To indicate an error or warning, a macro author should use `maclintf`.``)
(defn maclintf (defn maclintf
``When inside a macro, call this function to add a linter warning. Takes ``When inside a macro, call this function to add a linter warning. Takes
a `fmt` argument like `string/format` which is used to format the message.`` a `fmt` argument like `string/format`, which is used to format the message.``
[level fmt & args] [level fmt & args]
(def lints (dyn *macro-lints*)) (def lints (dyn *macro-lints*))
(when lints (when lints
@ -1939,7 +1952,7 @@
(defn macex1 (defn macex1
``Expand macros in a form, but do not recursively expand macros. ``Expand macros in a form, but do not recursively expand macros.
See `macex` docs for info on on-binding.`` See `macex` docs for info on `on-binding`.``
[x &opt on-binding] [x &opt on-binding]
(when on-binding (when on-binding
@ -2039,24 +2052,24 @@
ret) ret)
(defn all (defn all
`Returns true if all xs are truthy, otherwise the result of first ``Returns true if all `xs` are truthy, otherwise the result of first
falsey predicate value, (pred x).` falsey predicate value, `(pred x)`.``
[pred xs] [pred xs]
(var ret true) (var ret true)
(loop [x :in xs :while ret] (set ret (pred x))) (loop [x :in xs :while ret] (set ret (pred x)))
ret) ret)
(defn some (defn some
`Returns nil if all xs are false or nil, otherwise returns the result of the ``Returns nil if all `xs` are false or nil, otherwise returns the result of the
first truthy predicate, (pred x).` first truthy predicate, `(pred x)`.``
[pred xs] [pred xs]
(var ret nil) (var ret nil)
(loop [x :in xs :while (not ret)] (if-let [y (pred x)] (set ret y))) (loop [x :in xs :while (not ret)] (if-let [y (pred x)] (set ret y)))
ret) ret)
(defn deep-not= (defn deep-not=
`Like not=, but mutable types (arrays, tables, buffers) are considered ``Like `not=`, but mutable types (arrays, tables, buffers) are considered
equal if they have identical structure. Much slower than not=.` equal if they have identical structure. Much slower than `not=`.``
[x y] [x y]
(def tx (type x)) (def tx (type x))
(or (or
@ -2070,8 +2083,8 @@
(not= x y)))) (not= x y))))
(defn deep= (defn deep=
`Like =, but mutable types (arrays, tables, buffers) are considered ``Like `=`, but mutable types (arrays, tables, buffers) are considered
equal if they have identical structure. Much slower than =.` equal if they have identical structure. Much slower than `=`.``
[x y] [x y]
(not (deep-not= x y))) (not (deep-not= x y)))
@ -2091,11 +2104,11 @@
x)) x))
(defn macex (defn macex
`Expand macros completely. ``Expand macros completely.
on-binding is an optional callback whenever a normal symbolic binding `on-binding` is an optional callback for whenever a normal symbolic binding
is encounter. This allows macros to easily see all bindings use by their is encountered. This allows macros to easily see all bindings used by their
arguments by calling macex on their contents. The binding itself is also arguments by calling `macex` on their contents. The binding itself is also
replaced by the value returned by on-binding within the expand macro.` replaced by the value returned by `on-binding` within the expanded macro.``
[x &opt on-binding] [x &opt on-binding]
(var previous x) (var previous x)
(var current (macex1 x on-binding)) (var current (macex1 x on-binding))
@ -2108,10 +2121,10 @@
current) current)
(defmacro varfn (defmacro varfn
`Create a function that can be rebound. varfn has the same signature ``Create a function that can be rebound. `varfn` has the same signature
as defn, but defines functions in the environment as vars. If a var 'name' as `defn`, but defines functions in the environment as vars. If a var `name`
already exists in the environment, it is rebound to the new function. Returns already exists in the environment, it is rebound to the new function. Returns
a function.` a function.``
[name & body] [name & body]
(def expansion (apply defn name body)) (def expansion (apply defn name body))
(def fbody (last expansion)) (def fbody (last expansion))
@ -2139,17 +2152,17 @@
(defmacro short-fn (defmacro short-fn
``` ```
Shorthand for fn. Arguments are given as $n, where n is the 0-indexed Shorthand for `fn`. Arguments are given as `$n`, where `n` is the 0-indexed
argument of the function. $ is also an alias for the first (index 0) argument. argument of the function. `$` is also an alias for the first (index 0) argument.
The $& symbol will make the anonymous function variadic if it appears in the The `$&` symbol will make the anonymous function variadic if it appears in the
body of the function - it can be combined with positional arguments. body of the function, and can be combined with positional arguments.
Example usage: Example usage:
* (short-fn (+ $ $)) - A function that doubles its arguments. (short-fn (+ $ $)) # A function that doubles its arguments.
* (short-fn (string $0 $1)) - accepting multiple args (short-fn (string $0 $1)) # accepting multiple args.
* |(+ $ $) - use pipe reader macro for terse function literals |(+ $ $) # use pipe reader macro for terse function literals.
* |(+ $&) - variadic functions |(+ $&) # variadic functions
``` ```
[arg] [arg]
(var max-param-seen -1) (var max-param-seen -1)
@ -2187,8 +2200,8 @@
### ###
(defdyn *peg-grammar* (defdyn *peg-grammar*
"The implicit base grammar used when compiling PEGs. Any undefined keywords ``The implicit base grammar used when compiling PEGs. Any undefined keywords
found when compiling a peg will use lookup in this table (if defined).") found when compiling a peg will use lookup in this table (if defined).``)
(def default-peg-grammar (def default-peg-grammar
`The default grammar used for pegs. This grammar defines several common patterns `The default grammar used for pegs. This grammar defines several common patterns
@ -2260,8 +2273,8 @@
(eflush)) (eflush))
(defn- print-line-col (defn- print-line-col
"Print the source code at a line, column in a source file. If unable to open ``Print the source code at a line, column in a source file. If unable to open
the file, prints nothing." the file, prints nothing.``
[where line col] [where line col]
(if-not line (break)) (if-not line (break))
(unless (string? where) (break)) (unless (string? where) (break))
@ -2280,7 +2293,7 @@
(eprint (string/repeat " " (inc col)) "^"))))) (eprint (string/repeat " " (inc col)) "^")))))
(defn warn-compile (defn warn-compile
"Default handler for a compile warning" "Default handler for a compile warning."
[msg level where &opt line col] [msg level where &opt line col]
(def ec (dyn *err-color*)) (def ec (dyn *err-color*))
(eprin (eprin
@ -2318,8 +2331,8 @@
(eflush)) (eflush))
(defn curenv (defn curenv
`Get the current environment table. Same as (fiber/getenv (fiber/current)). If n ``Get the current environment table. Same as `(fiber/getenv (fiber/current))`. If `n`
is provided, gets the nth prototype of the environment table.` is provided, gets the nth prototype of the environment table.``
[&opt n] [&opt n]
(var e (fiber/getenv (fiber/current))) (var e (fiber/getenv (fiber/current)))
(if n (repeat n (if (= nil e) (break)) (set e (table/getproto e)))) (if n (repeat n (if (= nil e) (break)) (set e (table/getproto e))))
@ -2336,21 +2349,36 @@
``` ```
Run a context. This evaluates expressions in an environment, Run a context. This evaluates expressions in an environment,
and encapsulates the parsing, compilation, and evaluation. and encapsulates the parsing, compilation, and evaluation.
Returns (in environment :exit-value environment) when complete. Returns `(in environment :exit-value environment)` when complete.
opts is a table or struct of options. The options are as follows: `opts` is a table or struct of options. The options are as follows:
* `:chunks` - callback to read into a buffer - default is getline * `:chunks` -- callback to read into a buffer - default is getline
* `:on-parse-error` - callback when parsing fails - default is bad-parse
* `:env` - the environment to compile against - default is the current env * `:on-parse-error` -- callback when parsing fails - default is bad-parse
* `:source` - source path for better errors (use keywords for non-paths) - default is :<anonymous>
* `:on-compile-error` - callback when compilation fails - default is bad-compile * `:env` -- the environment to compile against - default is the current env
* `:on-compile-warning` - callback for any linting error - default is warn-compile
* `:evaluator` - callback that executes thunks. Signature is (evaluator thunk source env where) * `:source` -- source path for better errors (use keywords for non-paths) - default
* `:on-status` - callback when a value is evaluated - default is debug/stacktrace. is :<anonymous>
* `:fiber-flags` - what flags to wrap the compilation fiber with. Default is :ia.
* `:expander` - an optional function that is called on each top level form before being compiled. * `:on-compile-error` -- callback when compilation fails - default is bad-compile
* `:parser` - provide a custom parser that implements the same interface as Janet's built-in parser.
* `:read` - optional function to get the next form, called like `(read env source)`. * `:on-compile-warning` -- callback for any linting error - default is warn-compile
* `:evaluator` -- callback that executes thunks. Signature is (evaluator thunk source
env where)
* `:on-status` -- callback when a value is evaluated - default is debug/stacktrace.
* `:fiber-flags` -- what flags to wrap the compilation fiber with. Default is :ia.
* `:expander` -- an optional function that is called on each top level form before
being compiled.
* `:parser` -- provide a custom parser that implements the same interface as Janet's
built-in parser.
* `:read` -- optional function to get the next form, called like `(read env source)`.
Overrides all parsing. Overrides all parsing.
``` ```
[opts] [opts]
@ -2492,17 +2520,16 @@
(in env :exit-value env)) (in env :exit-value env))
(defn quit (defn quit
`Tries to exit from the current repl or context. Does not always exit the application. ``Tries to exit from the current repl or context. Does not always exit the application.
Works by setting the :exit dynamic binding to true. Passing a non-nil value here will cause the outer Works by setting the :exit dynamic binding to true. Passing a non-nil `value` here will cause the outer
run-context to return that value.` run-context to return that value.``
[&opt value] [&opt value]
(setdyn :exit true) (setdyn :exit true)
(setdyn :exit-value value) (setdyn :exit-value value)
nil) nil)
(defn eval-string (defn eval-string
`` ``Evaluates a string in the current environment. If more control over the
Evaluates a string in the current environment. If more control over the
environment is needed, use `run-context`.`` environment is needed, use `run-context`.``
[str] [str]
(var state (string str)) (var state (string str))
@ -2549,13 +2576,13 @@
(error "no value"))))) (error "no value")))))
(def load-image-dict (def load-image-dict
`A table used in combination with unmarshal to unmarshal byte sequences created ``A table used in combination with `unmarshal` to unmarshal byte sequences created
by make-image, such that (load-image bytes) is the same as (unmarshal bytes load-image-dict).` by `make-image`, such that `(load-image bytes)` is the same as `(unmarshal bytes load-image-dict)`.``
@{}) @{})
(def make-image-dict (def make-image-dict
`A table used in combination with marshal to marshal code (images), such that ``A table used in combination with `marshal` to marshal code (images), such that
(make-image x) is the same as (marshal x make-image-dict).` `(make-image x)` is the same as `(marshal x make-image-dict)`.``
@{}) @{})
(defmacro comptime (defmacro comptime
@ -2564,26 +2591,26 @@
(eval x)) (eval x))
(defmacro compif (defmacro compif
"Check the condition cnd at compile time - if truthy, compile tru, else compile fals." "Check the condition `cnd` at compile time -- if truthy, compile `tru`, else compile `fals`."
[cnd tru &opt fals] [cnd tru &opt fals]
(if (eval cnd) (if (eval cnd)
tru tru
fals)) fals))
(defmacro compwhen (defmacro compwhen
"Check the condition cnd at compile time - if truthy, compile (upscope ;body), else compile nil." "Check the condition `cnd` at compile time -- if truthy, compile `(upscope ;body)`, else compile nil."
[cnd & body] [cnd & body]
(if (eval cnd) (if (eval cnd)
~(upscope ,;body))) ~(upscope ,;body)))
(defn make-image (defn make-image
`Create an image from an environment returned by require. ``Create an image from an environment returned by `require`.
Returns the image source as a string.` Returns the image source as a string.``
[env] [env]
(marshal env make-image-dict)) (marshal env make-image-dict))
(defn load-image (defn load-image
"The inverse operation to make-image. Returns an environment." "The inverse operation to `make-image`. Returns an environment."
[image] [image]
(unmarshal image load-image-dict)) (unmarshal image load-image-dict))
@ -2593,18 +2620,18 @@
(defn- check-project-relative [x] (if (string/has-prefix? "/" x) x)) (defn- check-project-relative [x] (if (string/has-prefix? "/" x) x))
(def module/cache (def module/cache
"Table mapping loaded module identifiers to their environments." "A table, mapping loaded module identifiers to their environments."
@{}) @{})
(def module/paths (def module/paths
``` ```
The list of paths to look for modules, templated for module/expand-path. The list of paths to look for modules, templated for `module/expand-path`.
Each element is a two-element tuple, containing the path Each element is a two-element tuple, containing the path
template and a keyword :source, :native, or :image indicating how template and a keyword :source, :native, or :image indicating how
require should load files found at these paths. `require` should load files found at these paths.
A tuple can also A tuple can also
contain a third element, specifying a filter that prevents module/find contain a third element, specifying a filter that prevents `module/find`
from searching that path template if the filter doesn't match the input from searching that path template if the filter doesn't match the input
path. The filter can be a string or a predicate function, and path. The filter can be a string or a predicate function, and
is often a file extension, including the period. is often a file extension, including the period.
@ -2658,7 +2685,7 @@
(defn module/find (defn module/find
``` ```
Try to match a module or path name from the patterns in module/paths. Try to match a module or path name from the patterns in `module/paths`.
Returns a tuple (fullpath kind) where the kind is one of :source, :native, Returns a tuple (fullpath kind) where the kind is one of :source, :native,
or :image if the module is found, otherwise a tuple with nil followed by or :image if the module is found, otherwise a tuple with nil followed by
an error message. an error message.
@ -2686,15 +2713,15 @@
[nil (string "could not find module " path ":\n " ;str-parts)]))) [nil (string "could not find module " path ":\n " ;str-parts)])))
(def module/loading (def module/loading
`Table mapping currently loading modules to true. Used to prevent `A table, mapping currently loading modules to true. Used to prevent
circular dependencies.` circular dependencies.`
@{}) @{})
(defn dofile (defn dofile
`Evaluate a file, file path, or stream and return the resulting environment. :env, :expander, ``Evaluate a file, file path, or stream and return the resulting environment. :env, :expander,
:source, :evaluator, :read, and :parser are passed through to the underlying :source, :evaluator, :read, and :parser are passed through to the underlying
run-context call. If exit is true, any top level errors will trigger a `run-context` call. If `exit` is true, any top level errors will trigger a
call to (os/exit 1) after printing the error.` call to `(os/exit 1)` after printing the error.``
[path &keys [path &keys
{:exit exit {:exit exit
:env env :env env
@ -2762,9 +2789,9 @@
nenv) nenv)
(def module/loaders (def module/loaders
`A table of loading method names to loading functions. ``A table of loading method names to loading functions.
This table lets require and import load many different kinds This table lets `require` and `import` load many different kinds
of files as modules.` of files as modules.``
@{:native (fn native-loader [path &] (native path (make-env))) @{:native (fn native-loader [path &] (native path (make-env)))
:source (fn source-loader [path args] :source (fn source-loader [path args]
(put module/loading path true) (put module/loading path true)
@ -2793,17 +2820,17 @@
env)))) env))))
(defn require (defn require
`Require a module with the given name. Will search all of the paths in ``Require a module with the given name. Will search all of the paths in
module/paths. Returns the new environment `module/paths`. Returns the new environment
returned from compiling and running the file.` returned from compiling and running the file.``
[path & args] [path & args]
(require-1 path args (struct ;args))) (require-1 path args (struct ;args)))
(defn merge-module (defn merge-module
`Merge a module source into the target environment with a prefix, as with the import macro. ``Merge a module source into the `target` environment with a `prefix`, as with the `import` macro.
This lets users emulate the behavior of import with a custom module table. This lets users emulate the behavior of `import` with a custom module table.
If export is truthy, then merged functions are not marked as private. Returns If `export` is truthy, then merged functions are not marked as private. Returns
the modified target environment.` the modified target environment.``
[target source &opt prefix export] [target source &opt prefix export]
(loop [[k v] :pairs source :when (symbol? k) :when (not (v :private))] (loop [[k v] :pairs source :when (symbol? k) :when (not (v :private))]
(def newv (table/setproto @{:private (not export)} v)) (def newv (table/setproto @{:private (not export)} v))
@ -2811,8 +2838,8 @@
target) target)
(defn import* (defn import*
`Function form of import. Same parameters, but the path ``Function form of `import`. Same parameters, but the path
and other symbol parameters should be strings instead.` and other symbol parameters should be strings instead.``
[path & args] [path & args]
(def env (curenv)) (def env (curenv))
(def kargs (table ;args)) (def kargs (table ;args))
@ -2827,22 +2854,22 @@
(merge-module env newenv prefix ep)) (merge-module env newenv prefix ep))
(defmacro import (defmacro import
`Import a module. First requires the module, and then merges its ``Import a module. First requires the module, and then merges its
symbols into the current environment, prepending a given prefix as needed. symbols into the current environment, prepending a given prefix as needed.
(use the :as or :prefix option to set a prefix). If no prefix is provided, (use the :as or :prefix option to set a prefix). If no prefix is provided,
use the name of the module as a prefix. One can also use :export true use the name of the module as a prefix. One can also use "`:export true`"
to re-export the imported symbols. If :exit true is given as an argument, to re-export the imported symbols. If "`:exit true`" is given as an argument,
any errors encountered at the top level in the module will cause (os/exit 1) any errors encountered at the top level in the module will cause `(os/exit 1)`
to be called. Dynamic bindings will NOT be imported. Use :fresh to bypass the to be called. Dynamic bindings will NOT be imported. Use :fresh to bypass the
module cache.` module cache.``
[path & args] [path & args]
(def ps (partition 2 args)) (def ps (partition 2 args))
(def argm (mapcat (fn [[k v]] [k (if (= k :as) (string v) v)]) ps)) (def argm (mapcat (fn [[k v]] [k (if (= k :as) (string v) v)]) ps))
(tuple import* (string path) ;argm)) (tuple import* (string path) ;argm))
(defmacro use (defmacro use
`Similar to import, but imported bindings are not prefixed with a module ``Similar to `import`, but imported bindings are not prefixed with a module
identifier. Can also import multiple modules in one shot.` identifier. Can also import multiple modules in one shot.``
[& modules] [& modules]
~(do ,;(map |~(,import* ,(string $) :prefix "") modules))) ~(do ,;(map |~(,import* ,(string $) :prefix "") modules)))
@ -2865,21 +2892,21 @@
(sort (keys ret-set))) (sort (keys ret-set)))
(defn all-bindings (defn all-bindings
`Get all symbols available in an environment. Defaults to the current ``Get all symbols available in an environment. Defaults to the current
fiber's environment. If local is truthy, will not show inherited bindings fiber's environment. If `local` is truthy, will not show inherited bindings
(from prototype tables).` (from prototype tables).``
[&opt env local] [&opt env local]
(env-walk symbol? env local)) (env-walk symbol? env local))
(defn all-dynamics (defn all-dynamics
`Get all dynamic bindings in an environment. Defaults to the current ``Get all dynamic bindings in an environment. Defaults to the current
fiber's environment. If local is truthy, will not show inherited bindings fiber's environment. If `local` is truthy, will not show inherited bindings
(from prototype tables).` (from prototype tables).``
[&opt env local] [&opt env local]
(env-walk keyword? env local)) (env-walk keyword? env local))
(defdyn *doc-width* (defdyn *doc-width*
"Width in columns to print documentation printed with `doc-format`") "Width in columns to print documentation printed with `doc-format`.")
(defdyn *doc-color* (defdyn *doc-color*
"Whether or not to colorize documentation printed with `doc-format`.") "Whether or not to colorize documentation printed with `doc-format`.")
@ -3147,7 +3174,7 @@
buf) buf)
(defn- print-index (defn- print-index
"Print bindings in the current environment given a filter function" "Print bindings in the current environment given a filter function."
[fltr] [fltr]
(def bindings (filter fltr (all-bindings))) (def bindings (filter fltr (all-bindings)))
(def dynamics (map describe (filter fltr (all-dynamics)))) (def dynamics (map describe (filter fltr (all-dynamics))))
@ -3186,7 +3213,7 @@
(string " See https://janet-lang.org/docs/specials.html\n\n"))) (string " See https://janet-lang.org/docs/specials.html\n\n")))
(defn doc* (defn doc*
"Get the documentation for a symbol in a given environment. Function form of doc." "Get the documentation for a symbol in a given environment. Function form of `doc`."
[&opt sym] [&opt sym]
(cond (cond
@ -3254,25 +3281,25 @@
(dyn :signal)) (dyn :signal))
(defn .stack (defn .stack
"Print the current fiber stack" "Print the current fiber stack."
[] []
(print) (print)
(with-dyns [*err-color* false] (debug/stacktrace (.fiber) (.signal) "")) (with-dyns [*err-color* false] (debug/stacktrace (.fiber) (.signal) ""))
(print)) (print))
(defn .frame (defn .frame
"Show a stack frame" "Show a stack frame."
[&opt n] [&opt n]
(def stack (debug/stack (.fiber))) (def stack (debug/stack (.fiber)))
(in stack (or n 0))) (in stack (or n 0)))
(defn .fn (defn .fn
"Get the current function" "Get the current function."
[&opt n] [&opt n]
(in (.frame n) :function)) (in (.frame n) :function))
(defn .slots (defn .slots
"Get an array of slots in a stack frame" "Get an array of slots in a stack frame."
[&opt n] [&opt n]
(in (.frame n) :slots)) (in (.frame n) :slots))
@ -3297,7 +3324,7 @@
((.disasm n) :bytecode)) ((.disasm n) :bytecode))
(defn .ppasm (defn .ppasm
"Pretty prints the assembly for the current function" "Pretty prints the assembly for the current function."
[&opt n] [&opt n]
(def frame (.frame n)) (def frame (.frame n))
(def func (frame :function)) (def func (frame :function))
@ -3362,7 +3389,7 @@
(print "Set breakpoint in " fun " at pc=" pc)) (print "Set breakpoint in " fun " at pc=" pc))
(defn .clear (defn .clear
"Clear the current breakpoint" "Clear the current breakpoint."
[] []
(def frame (.frame)) (def frame (.frame))
(def fun (frame :function)) (def fun (frame :function))
@ -3411,8 +3438,7 @@
The second parameter is a function that is called when a signal is The second parameter is a function that is called when a signal is
caught. One can provide an optional environment table to run caught. One can provide an optional environment table to run
the repl in, as well as an optional parser or read function to pass the repl in, as well as an optional parser or read function to pass
to `run-context.` to `run-context`.``
``
[&opt chunks onsignal env parser read] [&opt chunks onsignal env parser read]
(default env (make-env)) (default env (make-env))
(default chunks (default chunks
@ -3473,7 +3499,7 @@
(compwhen (dyn 'ev/go) (compwhen (dyn 'ev/go)
(defn net/close "Alias for ev/close." [stream] (ev/close stream)) (defn net/close "Alias for `ev/close`." [stream] (ev/close stream))
(defn ev/call (defn ev/call
``` ```
@ -3484,7 +3510,7 @@
(ev/go (fn _call [&] (f ;args)))) (ev/go (fn _call [&] (f ;args))))
(defmacro ev/spawn (defmacro ev/spawn
"Run some code in a new fiber. This is shorthand for (ev/call (fn [] ;body))." "Run some code in a new fiber. This is shorthand for `(ev/call (fn [] ;body))`."
[& body] [& body]
~(,ev/go (fn _spawn [&] ,;body))) ~(,ev/go (fn _spawn [&] ,;body)))
@ -3533,7 +3559,7 @@
(compwhen (dyn 'net/listen) (compwhen (dyn 'net/listen)
(defn net/server (defn net/server
"Start a server asynchronously with net/listen and net/accept-loop. Returns the new server stream." "Start a server asynchronously with `net/listen` and `net/accept-loop`. Returns the new server stream."
[host port &opt handler type] [host port &opt handler type]
(def s (net/listen host port type)) (def s (net/listen host port type))
(if handler (if handler
@ -3602,7 +3628,7 @@
(defn flycheck (defn flycheck
``Check a file for errors without running the file. Found errors will be printed to stderr ``Check a file for errors without running the file. Found errors will be printed to stderr
in the usual format. Macros will still be executed, however, so in the usual format. Macros will still be executed, however, so
arbitrary execution is possible. Other arguments are the same as dofile. `path` can also be arbitrary execution is possible. Other arguments are the same as `dofile`. `path` can also be
a file value such as stdin. Returns nil.`` a file value such as stdin. Returns nil.``
[path &keys kwargs] [path &keys kwargs]
(def old-modcache (table/clone module/cache)) (def old-modcache (table/clone module/cache))
@ -3633,11 +3659,11 @@
(if (function? thunk) (thunk) (error (thunk :error)))))) (if (function? thunk) (thunk) (error (thunk :error))))))
(defdyn *args* (defdyn *args*
"Dynamic bindings that will contain command line arguments at program start") "Dynamic bindings that will contain command line arguments at program start.")
(defdyn *executable* (defdyn *executable*
"Name of the interpreter executable used to execute this program. Corresponds to argv[0] in the call to ``Name of the interpreter executable used to execute this program. Corresponds to `argv[0]` in the call to
int main(int argc, char **argv);") `int main(int argc, char **argv);`.``)
(defdyn *profilepath* (defdyn *profilepath*
"Path to profile file loaded when starting up the repl.") "Path to profile file loaded when starting up the repl.")