6663b6c9
 adorian
projet complet av...
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#include "script_store.h"
#include "string.h"
#include <stddef.h>
extern "C" {
#include "py/lexer.h"
#include "py/nlr.h"
}
namespace Code {
constexpr char ScriptStore::k_scriptExtension[];
constexpr char ScriptStore::k_defaultScriptName[];
ScriptStore::ScriptStore()
{
addScriptFromTemplate(ScriptTemplate::Factorial());
addScriptFromTemplate(ScriptTemplate::Mandelbrot());
addScriptFromTemplate(ScriptTemplate::Polynomial());
}
void ScriptStore::deleteAllScripts() {
for (int i = numberOfScripts() - 1; i >= 0; i--) {
scriptAtIndex(i).destroy();
}
}
bool ScriptStore::isFull() {
return (numberOfScripts() >= k_maxNumberOfScripts || Ion::Storage::sharedStorage()->availableSize() < k_fullFreeSpaceSizeLimit);
}
void ScriptStore::scanScriptsForFunctionsAndVariables(void * context, ScanCallback storeFunction, ScanCallback storeVariable) {
for (int scriptIndex = 0; scriptIndex < numberOfScripts(); scriptIndex++) {
// Handle lexer or parser errors with nlr.
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
const char * scriptContent = scriptAtIndex(scriptIndex).readContent();
if (scriptContent == nullptr) {
continue;
}
mp_lexer_t *lex = mp_lexer_new_from_str_len(0, scriptContent, strlen(scriptContent), false);
mp_parse_tree_t parseTree = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_parse_node_t pn = parseTree.root;
if (!MP_PARSE_NODE_IS_STRUCT(pn)) {
mp_parse_tree_clear(&parseTree);
nlr_pop();
continue;
}
mp_parse_node_struct_t *pns = (mp_parse_node_struct_t*)pn;
// The script is only a single function definition.
if (((uint)(MP_PARSE_NODE_STRUCT_KIND(pns))) == k_functionDefinitionParseNodeStructKind) {
const char * id = structID(pns);
if (id == nullptr) {
continue;
}
storeFunction(context, id, scriptIndex);
mp_parse_tree_clear(&parseTree);
nlr_pop();
continue;
}
// The script is only a single global variable definition.
if (((uint)(MP_PARSE_NODE_STRUCT_KIND(pns))) == k_expressionStatementParseNodeStructKind) {
const char * id = structID(pns);
if (id == nullptr) {
continue;
}
storeVariable(context, id, scriptIndex);
mp_parse_tree_clear(&parseTree);
nlr_pop();
continue;
}
if (((uint)(MP_PARSE_NODE_STRUCT_KIND(pns))) != k_fileInput2ParseNodeStructKind) {
// The script node is not of type "file_input_2", thus it will not have main
// structures of the wanted type.
mp_parse_tree_clear(&parseTree);
nlr_pop();
continue;
}
// Count the number of structs in child nodes.
size_t n = MP_PARSE_NODE_STRUCT_NUM_NODES(pns);
for (size_t i = 0; i < n; i++) {
mp_parse_node_t child = pns->nodes[i];
if (MP_PARSE_NODE_IS_STRUCT(child)) {
mp_parse_node_struct_t *child_pns = (mp_parse_node_struct_t*)(child);
if (((uint)(MP_PARSE_NODE_STRUCT_KIND(child_pns))) == k_functionDefinitionParseNodeStructKind) {
const char * id = structID(child_pns);
if (id == nullptr) {
continue;
}
storeFunction(context, id, scriptIndex);
} else if (((uint)(MP_PARSE_NODE_STRUCT_KIND(child_pns))) == k_expressionStatementParseNodeStructKind) {
const char * id = structID(child_pns);
if (id == nullptr) {
continue;
}
storeVariable(context, id, scriptIndex);
}
}
}
mp_parse_tree_clear(&parseTree);
nlr_pop();
}
}
}
const char * ScriptStore::contentOfScript(const char * name) {
Script script = scriptNamed(name);
if (script.isNull()) {
return nullptr;
}
return script.readContent();
}
Script::ErrorStatus ScriptStore::addScriptFromTemplate(const ScriptTemplate * scriptTemplate) {
size_t scriptSize = strlen(scriptTemplate->content())+1;
char * body = new char[scriptSize+Script::k_importationStatusSize];
body[0] = 1;
strlcpy(body+Script::k_importationStatusSize, scriptTemplate->content(), scriptSize);
Script::ErrorStatus err = Ion::Storage::sharedStorage()->createRecord(scriptTemplate->name(), body, scriptSize+Script::k_importationStatusSize);
assert(err != Script::ErrorStatus::NonCompliantName);
delete[] body;
return err;
}
const char * ScriptStore::structID(mp_parse_node_struct_t *structNode) {
// Find the id child node, which stores the struct's name
size_t childNodesCount = MP_PARSE_NODE_STRUCT_NUM_NODES(structNode);
if (childNodesCount < 1) {
return nullptr;
}
mp_parse_node_t child = structNode->nodes[0];
if (MP_PARSE_NODE_IS_LEAF(child)
&& MP_PARSE_NODE_LEAF_KIND(child) == MP_PARSE_NODE_ID)
{
uintptr_t arg = MP_PARSE_NODE_LEAF_ARG(child);
return qstr_str(arg);
}
return nullptr;
}
}
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