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#include "stdafx.h"
#include "Reader.h"
#include "Class.h"
#include "Core/Io/Text.h"
#include "Compiler/Engine.h"
#include "Compiler/Exception.h"
#include "Compiler/Syntax/Parser.h"
namespace storm {
namespace bs {
static storm::FileReader *CODECALL createFile(FileInfo *info) {
return new (info) UseReader(info);
}
PkgReader *reader(Array<Url *> *files, Package *pkg) {
Engine &e = pkg->engine();
return new (e) FilePkgReader(files, pkg, fnPtr(e, &createFile, Compiler::thread(e)));
}
// Find the syntax package for BS given a type in 'lang.bs'.
static Package *syntaxPkg(RootObject *o) {
Type *t = runtime::typeOf(o);
Package *p = as<Package>(t->parent());
assert(p);
return p;
}
/**
* UseReader.
*/
UseReader::UseReader(FileInfo *info) : FileReader(info) {}
syntax::InfoParser *UseReader::createParser() {
syntax::Rule *r = as<syntax::Rule>(syntaxPkg(this)->find(S("SIncludes"), Scope()));
if (!r)
throw new (this) LangDefError(S("Can not find the 'SIncludes' rule."));
return new (this) syntax::InfoParser(r);
}
FileReader *UseReader::createNext(ReaderQuery q) {
// We do not provide syntax.
if (q & qSyntax)
return null;
syntax::Parser *p = syntax::Parser::create(syntaxPkg(this), S("SIncludes"));
if (!p->parse(info->contents, info->url, info->start))
p->throwError();
Array<SrcName *> *includes = p->transform<Array<SrcName *>>();
return new (this) CodeReader(info->next(p->matchEnd()), includes, q);
}
/**
* CodeReader.
*/
CodeReader::CodeReader(FileInfo *info, Array<SrcName *> *includes, ReaderQuery query) : FileReader(info) {
Array<Package *> *inc = new (this) Array<Package *>();
for (Nat i = 0; i < includes->count(); i++) {
SrcName *v = includes->at(i);
Package *p = as<Package>(engine().scope().find(v));
if (p)
inc->push(p);
else if ((query & qParser) == 0)
// Only complain if we're not parsing interactively.
throw new (this) SyntaxError(v->pos, TO_S(engine(), S("Unknown package ") << v));
}
BSLookup *lookup = new (this) BSLookup(inc);
scope = Scope(info->pkg, lookup);
}
syntax::InfoParser *CodeReader::createParser() {
syntax::Rule *r = as<syntax::Rule>(syntaxPkg(this)->find(S("SFile"), Scope()));
if (!r)
throw new (this) LangDefError(S("Can not find the 'SFile' rule."));
syntax::InfoParser *p = new (this) syntax::InfoParser(r);
addSyntax(scope, p);
return p;
}
void CodeReader::readTypes() {
readContent();
Package *pkg = info->pkg;
for (Nat i = 0; i < content->types->count(); i++) {
pkg->add(content->types->at(i));
}
for (Nat i = 0; i < content->threads->count(); i++) {
pkg->add(content->threads->at(i));
}
}
void CodeReader::resolveTypes() {
readContent();
for (Nat i = 0; i < content->types->count(); i++) {
if (Class *c = as<Class>(content->types->at(i))) {
c->lookupTypes();
}
}
}
void CodeReader::readFunctions() {
readContent();
Package *pkg = info->pkg;
for (Nat i = 0; i < content->decls->count(); i++) {
pkg->add(content->decls->at(i)->create());
}
for (Nat i = 0; i < content->templates->count(); i++) {
pkg->add(content->templates->at(i));
}
}
void CodeReader::resolveFunctions() {
readContent();
for (Nat i = 0; i < content->decls->count(); i++) {
content->decls->at(i)->resolve();
}
}
void CodeReader::readContent() {
if (content)
return;
syntax::Parser *p = syntax::Parser::create(syntaxPkg(this), S("SFile"));
addSyntax(scope, p);
p->parse(info->contents, info->url, info->start);
if (p->hasError())
p->throwError();
content = p->transform<Content, Scope>(scope);
}
}
}
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