wisp
Version:
Homoiconic JS with clojure syntax, s-expressions & macros
143 lines (142 loc) • 17.4 kB
JavaScript
{
var _ns_ = {
id: 'wisp.compiler',
doc: void 0
};
var wisp_analyzer = require('./analyzer');
var analyze = wisp_analyzer.analyze;
var wisp_reader = require('./reader');
var read_ = wisp_reader.read_;
var read = wisp_reader.read;
var pushBackReader = wisp_reader.pushBackReader;
var wisp_string = require('./string');
var replace = wisp_string.replace;
var wisp_sequence = require('./sequence');
var map = wisp_sequence.map;
var reduce = wisp_sequence.reduce;
var conj = wisp_sequence.conj;
var cons = wisp_sequence.cons;
var vec = wisp_sequence.vec;
var first = wisp_sequence.first;
var rest = wisp_sequence.rest;
var isEmpty = wisp_sequence.isEmpty;
var count = wisp_sequence.count;
var wisp_runtime = require('./runtime');
var isError = wisp_runtime.isError;
var isEqual = wisp_runtime.isEqual;
var wisp_ast = require('./ast');
var name = wisp_ast.name;
var symbol = wisp_ast.symbol;
var prStr = wisp_ast.prStr;
var wisp_backend_escodegen_generator = require('./backend/escodegen/generator');
var generateJs = wisp_backend_escodegen_generator.generate;
var base64Encode = require('base64-encode');
var btoa = base64Encode;
}
var generate = exports.generate = generateJs;
var readForm = exports.readForm = function readForm(reader, eof) {
return (function () {
try {
return read(reader, false, eof, false);
} catch (error) {
return error;
}
})();
};
var readForms = exports.readForms = function readForms(source, uri) {
return function () {
var readerø1 = pushBackReader(source, uri);
var eofø1 = {};
return function loop() {
var recur = loop;
var formsø1 = [];
var formø1 = readForm(readerø1, eofø1);
do {
recur = isError(formø1) ? {
'forms': formsø1,
'error': formø1
} : formø1 === eofø1 ? { 'forms': formsø1 } : 'else' ? (loop[0] = conj(formsø1, formø1), loop[1] = readForm(readerø1, eofø1), loop) : void 0;
} while (formsø1 = loop[0], formø1 = loop[1], recur === loop);
return recur;
}.call(this);
}.call(this);
};
var analyzeForm = exports.analyzeForm = function analyzeForm(env, form) {
return (function () {
try {
return analyze(env, form);
} catch (error) {
return error;
}
})();
};
var analyzeForms = exports.analyzeForms = function analyzeForms(forms) {
return function loop() {
var recur = loop;
var nodesø1 = [];
var formsø2 = forms;
var envø1 = {
'locals': {},
'bindings': [],
'top': true,
'ns': { 'name': symbol(void 0, 'user.wisp') }
};
do {
recur = function () {
var nodeø1 = analyzeForm(envø1, first(formsø2));
var nsø1 = isEqual((nodeø1 || 0)['op'], 'ns') ? nodeø1 : (envø1 || 0)['ns'];
return isError(nodeø1) ? {
'ast': nodesø1,
'error': nodeø1
} : count(formsø2) <= 1 ? { 'ast': conj(nodesø1, nodeø1) } : 'else' ? (loop[0] = conj(nodesø1, nodeø1), loop[1] = rest(formsø2), loop[2] = conj(envø1, { 'ns': nsø1 }), loop) : void 0;
}.call(this);
} while (nodesø1 = loop[0], formsø2 = loop[1], envø1 = loop[2], recur === loop);
return recur;
}.call(this);
};
var compile = exports.compile = function compile() {
switch (arguments.length) {
case 1:
var source = arguments[0];
return compile(source, {});
case 2:
var source = arguments[0];
var options = arguments[1];
return function () {
var sourceUriø1 = (options || 0)['source-uri'] || name('anonymous.wisp');
var formsø1 = readForms(source, sourceUriø1);
var astø1 = (formsø1 || 0)['error'] ? formsø1 : analyzeForms((formsø1 || 0)['forms']);
var outputø1 = (astø1 || 0)['error'] ? astø1 : (function () {
try {
return generate.apply(void 0, vec(cons(conj(options, {
'source': source,
'source-uri': sourceUriø1
}), (astø1 || 0)['ast'])));
} catch (error) {
return { 'error': error };
}
})();
var expansionø1 = 'expansion' === (options || 0)['print'] ? reduce(function (result, item) {
return '' + result + prStr(item.form) + '\n';
}, '', astø1.ast) : void 0;
var resultø1 = {
'source-uri': sourceUriø1,
'ast': (astø1 || 0)['ast'],
'forms': (formsø1 || 0)['forms'],
'expansion': expansionø1
};
return conj(options, outputø1, resultø1);
}.call(this);
default:
throw RangeError('Wrong number of arguments passed');
}
};
var evaluate = exports.evaluate = function evaluate(source) {
return function () {
var outputø1 = compile(source);
return (outputø1 || 0)['error'] ? (function () {
throw (outputø1 || 0)['error'];
})() : eval((outputø1 || 0)['code']);
}.call(this);
};
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count]]\n            [wisp.runtime :refer [error? =]]\n            [wisp.ast :refer [name symbol pr-str]]\n\n            [wisp.backend.escodegen.generator :refer [generate]\n                                              :rename {generate generate-js}]\n            [base64-encode :as btoa]))\n\n(def generate generate-js)\n\n(defn read-form\n  [reader eof]\n  (try (read reader false eof false)\n    (catch error error)))\n\n(defn read-forms\n  [source uri]\n  (let [reader (push-back-reader source uri)\n        eof {}]\n    (loop [forms []\n           form (read-form reader eof)]\n      (cond (error? form) {:forms forms :error form}\n            (identical? form eof) {:forms forms}\n            :else (recur (conj forms form)\n                         (read-form reader eof))))))\n\n(defn analyze-form\n  [env form]\n  (try (analyze env form) (catch error error)))\n\n(defn analyze-forms\n  [forms]\n  (loop [nodes []\n         forms forms\n         env {:locals {}\n              :bindings []\n              :top true\n              :ns {:name 'user.wisp}}]\n    (let [node (analyze-form env (first forms))\n          ns (if (= (:op node) :ns)\n               node\n               (:ns env))]\n      (cond (error? node) {:ast nodes :error node}\n            (<= (count forms) 1) {:ast (conj nodes node)}\n            :else (recur (conj nodes node)\n                         (rest forms)\n                         (conj env {:ns ns}))))))\n\n(defn compile\n  \"Compiler takes wisp code in form of string and returns a hash\n  containing `:source` representing compilation result. If\n  `(:source-map options)` is `true` then `:source-map` of the returned\n  hash will contain source map for it.\n  :output-uri\n  :source-map-uri\n\n  Returns hash with following fields:\n\n  :code - Generated code.\n\n  :source-map - Generated source map. Only if (:source-map options)\n                was true.\n\n  :output-uri - Returns back (:output-uri options) if was passed in,\n                otherwise computes one from (:source-uri options) by\n                changing file extension.\n\n  :source-map-uri - Returns back (:source-map-uri options) if was passed\n                    in, otherwise computes one from (:source-uri options)\n                    by adding `.map` file extension.\"\n  ([source] (compile source {}))\n  ([source options]\n   (let [source-uri (or (:source-uri options) (name :anonymous.wisp)) ;; HACK: Workaround for segfault #6691\n         forms (read-forms source source-uri)\n\n         ast (if (:error forms)\n               forms\n               (analyze-forms (:forms forms)))\n\n         output (if (:error ast)\n                  ast\n                  (try              ;; TODO: Remove this\n                                    ;; Old compiler has incorrect apply.\n                    (apply generate (vec (cons (conj options\n                                                     {:source source\n                                                      :source-uri source-uri})\n                                               (:ast ast))))\n                    (catch error {:error error})))\n\n         expansion (if (identical? :expansion (:print options))\n                     (reduce (fn [result item]\n                                  (str result (pr-str (.-form item)) \"\\n\"))\n                                  \"\" (.-ast ast)))\n\n         result {:source-uri source-uri\n                 :ast (:ast ast)\n                 :forms (:forms forms)\n                 :expansion expansion}]\n     (conj options output result))))\n\n(defn evaluate\n  [source]\n  (let [output (compile source)]\n    (if (:error output)\n      (throw (:error output))\n      (eval (:code output)))))\n"]}