-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009 Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2015 Jay Freeman (saurik)
*/
-/* Modified BSD License {{{ */
+/* GNU Affero General Public License, Version 3 {{{ */
/*
- * Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the
- * above copyright notice, this list of conditions
- * and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions
- * and the following disclaimer in the documentation
- * and/or other materials provided with the
- * distribution.
- * 3. The name of the author may not be used to endorse
- * or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+**/
/* }}} */
#include "Parser.hpp"
-#include "Context.hpp"
+#include "Replace.hpp"
#include <iomanip>
-#include "Replace.hpp"
+CYFunctionExpression *CYNonLocalize(CYContext &context, CYFunctionExpression *function) {
+ function->nonlocal_ = context.nextlocal_;
+ return function;
+}
+
+static void CYImplicitReturn(CYStatement *&code) {
+ if (CYStatement *&last = CYGetLast(code))
+ last = last->Return();
+}
CYExpression *CYAdd::Replace(CYContext &context) {
CYInfix::Replace(context);
- CYExpression *lhp(lhs_->Primitive(context));
- CYExpression *rhp(rhs_->Primitive(context));
-
- CYString *lhs(dynamic_cast<CYString *>(lhp));
- CYString *rhs(dynamic_cast<CYString *>(rhp));
+ CYString *lhs(dynamic_cast<CYString *>(lhs_));
+ CYString *rhs(dynamic_cast<CYString *>(rhs_));
if (lhs != NULL || rhs != NULL) {
if (lhs == NULL) {
- lhs = lhp->String(context);
+ lhs = lhs_->String(context);
if (lhs == NULL)
return this;
} else if (rhs == NULL) {
- rhs = rhp->String(context);
+ rhs = rhs_->String(context);
if (rhs == NULL)
return this;
}
return lhs->Concat(context, rhs);
}
- if (CYNumber *lhn = lhp->Number(context))
- if (CYNumber *rhn = rhp->Number(context))
+ if (CYNumber *lhn = lhs_->Number(context))
+ if (CYNumber *rhn = rhs_->Number(context))
return $D(lhn->Value() + rhn->Value());
return this;
}
CYExpression *CYAddressOf::Replace(CYContext &context) {
- CYPrefix::Replace(context);
return $C0($M(rhs_, $S("$cya")));
}
-void CYArgument::Replace(CYContext &context) { $T()
+CYArgument *CYArgument::Replace(CYContext &context) { $T(NULL)
context.Replace(value_);
- next_->Replace(context);
+ next_ = next_->Replace(context);
+
+ if (value_ == NULL) {
+ if (next_ == NULL)
+ return NULL;
+ else
+ value_ = $U;
+ }
+
+ return this;
}
CYExpression *CYArray::Replace(CYContext &context) {
- elements_->Replace(context);
+ if (elements_ != NULL)
+ elements_->Replace(context);
return this;
}
CYExpression *CYArrayComprehension::Replace(CYContext &context) {
CYVariable *cyv($V("$cyv"));
- return $C0($F(NULL, $P1("$cyv", comprehensions_->Parameters(context)), $$->*
+ return $C0($F(NULL, $P1($L("$cyv"), comprehensions_->Parameters(context)), $$->*
$E($ CYAssign(cyv, $ CYArray()))->*
comprehensions_->Replace(context, $E($C1($M(cyv, $S("push")), expression_)))->*
$ CYReturn(cyv)
return this;
}
+CYStatement *CYBlock::Return() {
+ CYImplicitReturn(code_);
+ return this;
+}
+
CYStatement *CYBlock::Replace(CYContext &context) {
- statements_ = statements_->ReplaceAll(context);
- if (statements_ == NULL)
+ context.ReplaceAll(code_);
+ if (code_ == NULL)
return $ CYEmpty();
return this;
}
return this;
}
+CYExpression *CYCall::AddArgument(CYContext &context, CYExpression *value) {
+ CYArgument **argument(&arguments_);
+ while (*argument != NULL)
+ argument = &(*argument)->next_;
+ *argument = $ CYArgument(value);
+ return this;
+}
+
CYExpression *CYCall::Replace(CYContext &context) {
context.Replace(function_);
arguments_->Replace(context);
namespace Syntax {
void Catch::Replace(CYContext &context) { $T()
- code_.Replace(context);
+ CYScope scope(true, context);
+
+ context.Replace(name_);
+ context.scope_->Declare(context, name_, CYIdentifierCatch);
+
+ context.ReplaceAll(code_);
+ scope.Close(context, code_);
}
} }
void CYClause::Replace(CYContext &context) { $T()
context.Replace(case_);
- statements_ = statements_->ReplaceAll(context);
+ context.ReplaceAll(code_);
next_->Replace(context);
}
-CYStatement *CYComment::Replace(CYContext &context) {
+CYExpression *CYCompound::Replace(CYContext &context) {
+ context.Replace(expression_);
+ context.Replace(next_);
+
+ if (CYCompound *compound = dynamic_cast<CYCompound *>(expression_)) {
+ expression_ = compound->expression_;
+ compound->expression_ = compound->next_;
+ compound->next_ = next_;
+ next_ = compound;
+ }
+
return this;
}
-CYExpression *CYCompound::Replace(CYContext &context) {
- expressions_ = expressions_->ReplaceAll(context);
- return expressions_ == NULL ? NULL : this;
+CYFunctionParameter *CYCompound::Parameter() const {
+ CYFunctionParameter *next(next_->Parameter());
+ if (next == NULL)
+ return NULL;
+
+ CYFunctionParameter *parameter(expression_->Parameter());
+ if (parameter == NULL)
+ return NULL;
+
+ parameter->SetNext(next);
+ return parameter;
}
CYFunctionParameter *CYComprehension::Parameters(CYContext &context) const { $T(NULL)
return this;
}
+void CYContext::NonLocal(CYStatement *&statements) {
+ CYContext &context(*this);
+
+ if (nextlocal_ != NULL && nextlocal_->identifier_ != NULL) {
+ CYIdentifier *cye($I("$cye")->Replace(context));
+ CYIdentifier *unique(nextlocal_->identifier_->Replace(context));
+
+ CYStatement *declare(
+ $ CYVar($L1($ CYDeclaration(unique, $ CYObject()))));
+
+ cy::Syntax::Catch *rescue(
+ $ cy::Syntax::Catch(cye, $$->*
+ $ CYIf($ CYIdentical($M($V(cye), $S("$cyk")), $V(unique)), $$->*
+ $ CYReturn($M($V(cye), $S("$cyv"))))->*
+ $ cy::Syntax::Throw($V(cye))));
+
+ // XXX: I don't understand any of this
+ context.Replace(declare);
+ rescue->Replace(context);
+
+ statements = $$->*
+ declare->*
+ $ cy::Syntax::Try(statements, rescue, NULL);
+ }
+}
+
+CYIdentifier *CYContext::Unique() {
+ return $ CYIdentifier($pool.strcat("$cy", $pool.itoa(unique_++), NULL));
+}
+
CYStatement *CYContinue::Replace(CYContext &context) {
return this;
}
+CYStatement *CYDebugger::Replace(CYContext &context) {
+ return this;
+}
+
CYAssignment *CYDeclaration::Assignment(CYContext &context) {
- CYExpression *variable(Replace(context));
- return initialiser_ == NULL ? NULL : $ CYAssign(variable, initialiser_);
+ if (initialiser_ == NULL)
+ return NULL;
+
+ CYAssignment *value($ CYAssign(Variable(context), initialiser_));
+ initialiser_ = NULL;
+ return value;
}
-CYExpression *CYDeclaration::ForEachIn(CYContext &context) {
- return $ CYVariable(identifier_);
+CYVariable *CYDeclaration::Variable(CYContext &context) {
+ return $V(identifier_);
+}
+
+CYStatement *CYDeclaration::ForEachIn(CYContext &context, CYExpression *value) {
+ return $ CYVar($L1($ CYDeclaration(identifier_, value)));
}
CYExpression *CYDeclaration::Replace(CYContext &context) {
context.Replace(identifier_);
context.scope_->Declare(context, identifier_, CYIdentifierVariable);
- return $ CYVariable(identifier_);
+ return Variable(context);
+}
+
+void CYDeclarations::Replace(CYContext &context) { $T()
+ declaration_->Replace(context);
+ next_->Replace(context);
}
CYProperty *CYDeclarations::Property(CYContext &context) { $T(NULL)
- return $ CYProperty(declaration_->identifier_, declaration_->initialiser_ ?: $U, next_->Property(context));
+ return $ CYProperty(declaration_->identifier_, declaration_->initialiser_, next_->Property(context));
}
-CYCompound *CYDeclarations::Replace(CYContext &context) {
- CYCompound *compound;
- if (next_ == NULL) compound:
- compound = $ CYCompound();
- else {
- compound = next_->Replace(context);
- if (compound == NULL)
- goto compound;
- }
+CYFunctionParameter *CYDeclarations::Parameter(CYContext &context) { $T(NULL)
+ return $ CYFunctionParameter($ CYDeclaration(declaration_->identifier_), next_->Parameter(context));
+}
+CYArgument *CYDeclarations::Argument(CYContext &context) { $T(NULL)
+ return $ CYArgument(declaration_->initialiser_, next_->Argument(context));
+}
+
+CYExpression *CYDeclarations::Expression(CYContext &context) { $T(NULL)
+ CYExpression *compound(next_->Expression(context));
if (CYAssignment *assignment = declaration_->Assignment(context))
- compound->AddPrev(assignment);
+ if (compound == NULL)
+ compound = assignment;
+ else
+ compound = $ CYCompound(assignment, compound);
return compound;
}
CYExpression *CYDirectMember::Replace(CYContext &context) {
- Replace_(context);
+ context.Replace(object_);
+ context.Replace(property_);
return this;
}
CYStatement *CYDoWhile::Replace(CYContext &context) {
context.Replace(test_);
- context.Replace(code_);
+ context.ReplaceAll(code_);
return this;
}
-void CYElement::Replace(CYContext &context) { $T()
+void CYElementSpread::Replace(CYContext &context) {
context.Replace(value_);
- next_->Replace(context);
}
-CYStatement *CYEmpty::Collapse(CYContext &context) {
- return next_;
+void CYElementValue::Replace(CYContext &context) {
+ context.Replace(value_);
+ if (next_ != NULL)
+ next_->Replace(context);
}
CYStatement *CYEmpty::Replace(CYContext &context) {
- return this;
+ return NULL;
}
-CYStatement *CYExpress::Collapse(CYContext &context) {
- if (CYExpress *express = dynamic_cast<CYExpress *>(next_)) {
- CYCompound *next(dynamic_cast<CYCompound *>(express->expression_));
- if (next == NULL)
- next = $ CYCompound(express->expression_);
- next->AddPrev(expression_);
- expression_ = next;
- SetNext(express->next_);
- }
+CYExpression *CYEncodedType::Replace(CYContext &context) {
+ return typed_->Replace(context);
+}
- return this;
+CYStatement *CYExpress::Return() {
+ return $ CYReturn(expression_);
}
CYStatement *CYExpress::Replace(CYContext &context) {
context.Replace(expression_);
- if (expression_ == NULL)
- return $ CYEmpty();
return this;
}
+CYExpression *CYExpression::AddArgument(CYContext &context, CYExpression *value) {
+ return $C1(this, value);
+}
+
CYExpression *CYExpression::ClassName(CYContext &context, bool object) {
return this;
}
-CYExpression *CYExpression::ForEachIn(CYContext &context) {
- return this;
+CYStatement *CYExpression::ForEachIn(CYContext &context, CYExpression *value) {
+ return $E($ CYAssign(this, value));
}
-CYExpression *CYExpression::ReplaceAll(CYContext &context) { $T(NULL)
- CYExpression *replace(this);
- context.Replace(replace);
+CYAssignment *CYExpression::Assignment(CYContext &context) {
+ return NULL;
+}
- if (CYExpression *next = next_->ReplaceAll(context))
- replace->SetNext(next);
- else
- replace->SetNext(next_);
+CYFunctionParameter *CYExpression::Parameter() const {
+ return NULL;
+}
- return replace;
+CYStatement *CYExternal::Replace(CYContext &context) {
+ return $E($ CYAssign($V(typed_->identifier_), $C1(typed_->Replace(context), $C2($V("dlsym"), $V("RTLD_DEFAULT"), $S(typed_->identifier_->Word())))));
}
CYNumber *CYFalse::Number(CYContext &context) {
return $S("false");
}
+CYExpression *CYFatArrow::Replace(CYContext &context) {
+ CYFunctionExpression *function($ CYFunctionExpression(NULL, parameters_, code_));
+ function->this_.SetNext(context.this_);
+ return function;
+}
+
void CYFinally::Replace(CYContext &context) { $T()
- code_.Replace(context);
+ context.ReplaceAll(code_);
}
CYStatement *CYFor::Replace(CYContext &context) {
context.Replace(initialiser_);
context.Replace(test_);
context.Replace(increment_);
- context.Replace(code_);
+ context.ReplaceAll(code_);
return this;
}
+CYExpression *CYForDeclarations::Replace(CYContext &context) {
+ declarations_->Replace(context);
+ return declarations_->Expression(context);
+}
+
+// XXX: this still feels highly suboptimal
CYStatement *CYForIn::Replace(CYContext &context) {
- // XXX: this actually might need a prefix statement
+ if (CYAssignment *assignment = initialiser_->Assignment(context))
+ return $ CYBlock($$->*
+ $E(assignment)->*
+ this
+ );
+
context.Replace(initialiser_);
context.Replace(set_);
- context.Replace(code_);
+ context.ReplaceAll(code_);
return this;
}
CYFunctionParameter *CYForInComprehension::Parameter(CYContext &context) const {
- return $ CYFunctionParameter(name_);
+ return $ CYFunctionParameter($ CYDeclaration(name_));
}
CYStatement *CYForInComprehension::Replace(CYContext &context, CYStatement *statement) const {
- return $ CYForIn($ CYVariable(name_), set_, CYComprehension::Replace(context, statement));
+ return $ CYForIn($V(name_), set_, CYComprehension::Replace(context, statement));
}
-CYStatement *CYForEachIn::Replace(CYContext &context) {
- CYVariable *cys($V("$cys")), *cyt($V("$cyt"));
+CYStatement *CYForOf::Replace(CYContext &context) {
+ if (CYAssignment *assignment = initialiser_->Assignment(context))
+ return $ CYBlock($$->*
+ $E(assignment)->*
+ this
+ );
- return $ CYLet($L2($L($I("$cys"), set_), $L($I("$cyt"))), $$->*
- $ CYForIn(cyt, cys, $ CYBlock($$->*
- $E($ CYAssign(initialiser_->ForEachIn(context), $M(cys, cyt)))->*
+ CYIdentifier *cys($I("$cys")), *cyt($I("$cyt"));
+
+ return $ CYLetStatement($L2($ CYDeclaration(cys, set_), $ CYDeclaration(cyt)), $$->*
+ $ CYForIn($V(cyt), $V(cys), $ CYBlock($$->*
+ initialiser_->ForEachIn(context, $M($V(cys), $V(cyt)))->*
code_
))
);
}
-CYFunctionParameter *CYForEachInComprehension::Parameter(CYContext &context) const {
- return $ CYFunctionParameter(name_);
+CYFunctionParameter *CYForOfComprehension::Parameter(CYContext &context) const {
+ return $ CYFunctionParameter($ CYDeclaration(name_));
}
-CYStatement *CYForEachInComprehension::Replace(CYContext &context, CYStatement *statement) const {
- CYVariable *cys($V("$cys")), *name($ CYVariable(name_));
+CYStatement *CYForOfComprehension::Replace(CYContext &context, CYStatement *statement) const {
+ CYIdentifier *cys($I("$cys"));
- return $E($C0($F(NULL, $P1("$cys"), $$->*
- $E($ CYAssign(cys, set_))->*
- $ CYForIn(name, cys, $ CYBlock($$->*
- $E($ CYAssign(name, $M(cys, name)))->*
+ return $E($C0($F(NULL, $P1($L("$cys")), $$->*
+ $E($ CYAssign($V(cys), set_))->*
+ $ CYForIn($V(name_), $V(cys), $ CYBlock($$->*
+ $E($ CYAssign($V(name_), $M($V(cys), $V(name_))))->*
CYComprehension::Replace(context, statement)
))
)));
}
void CYFunction::Inject(CYContext &context) {
- name_ = name_->Replace(context);
+ context.Replace(name_);
context.scope_->Declare(context, name_, CYIdentifierOther);
}
if (outer)
Inject(context);
- parent_ = context.scope_;
- context.scope_ = this;
+ CYThisScope *_this(context.this_);
+ context.this_ = &this_;
+ context.this_ = CYGetLast(context.this_);
+
+ CYNonLocal *nonlocal(context.nonlocal_);
+ CYNonLocal *nextlocal(context.nextlocal_);
+
+ bool localize;
+ if (nonlocal_ != NULL) {
+ localize = false;
+ context.nonlocal_ = nonlocal_;
+ } else {
+ localize = true;
+ nonlocal_ = $ CYNonLocal();
+ context.nextlocal_ = nonlocal_;
+ }
+
+ CYScope scope(!localize, context);
if (!outer && name_ != NULL)
Inject(context);
- parameters_->Replace(context);
- code_.Replace(context);
+ parameters_->Replace(context, code_);
+ context.ReplaceAll(code_);
- context.scope_ = parent_;
- Scope(context, code_.statements_);
+ if (implicit_)
+ CYImplicitReturn(code_);
+
+ if (CYIdentifier *identifier = this_.identifier_)
+ code_ = $$->*
+ $ CYVar($L1($ CYDeclaration(identifier, $ CYThis())))->*
+ code_;
+
+ if (localize)
+ context.NonLocal(code_);
+
+ context.nextlocal_ = nextlocal;
+ context.nonlocal_ = nonlocal;
+
+ context.this_ = _this;
+
+ scope.Close(context, code_);
}
CYExpression *CYFunctionExpression::Replace(CYContext &context) {
return this;
}
-void CYFunctionParameter::Replace(CYContext &context) { $T()
- name_ = name_->Replace(context);
- context.scope_->Declare(context, name_, CYIdentifierArgument);
- next_->Replace(context);
+void CYFunctionParameter::Replace(CYContext &context, CYStatement *&statements) { $T()
+ CYAssignment *assignment(initialiser_->Assignment(context));
+ context.Replace(initialiser_);
+
+ next_->Replace(context, statements);
+
+ if (assignment != NULL)
+ statements = $$->*
+ // XXX: this cast is quite incorrect
+ $ CYIf($ CYIdentical($ CYTypeOf(dynamic_cast<CYExpression *>(initialiser_)), $S("undefined")), $$->*
+ $E(assignment)
+ )->*
+ statements;
}
CYStatement *CYFunctionStatement::Replace(CYContext &context) {
}
CYIdentifier *CYIdentifier::Replace(CYContext &context) {
- if (replace_ == NULL)
- replace_ = context.scope_->Lookup(context, this);
+ if (replace_ != NULL && replace_ != this)
+ return replace_->Replace(context);
+ replace_ = context.scope_->Lookup(context, this);
return replace_;
}
+CYStatement *CYIf::Return() {
+ CYImplicitReturn(true_);
+ CYImplicitReturn(false_);
+ return this;
+}
+
CYStatement *CYIf::Replace(CYContext &context) {
context.Replace(test_);
- context.Replace(true_);
- context.Replace(false_);
+ context.ReplaceAll(true_);
+ context.ReplaceAll(false_);
return this;
}
return $ CYIf(test_, CYComprehension::Replace(context, statement));
}
+CYStatement *CYImport::Replace(CYContext &context) {
+ return $ CYVar($L1($L(module_->part_->Word(), $C1($V("require"), module_->Replace(context, "/")))));
+}
+
CYExpression *CYIndirect::Replace(CYContext &context) {
- CYPrefix::Replace(context);
return $M(rhs_, $S("$cyi"));
}
CYExpression *CYIndirectMember::Replace(CYContext &context) {
- Replace_(context);
return $M($ CYIndirect(object_), property_);
}
return this;
}
-CYStatement *CYLet::Replace(CYContext &context) {
- return $ CYWith($ CYObject(declarations_->Property(context)), &code_);
+CYExpression *CYLambda::Replace(CYContext &context) {
+ return $N2($V("Functor"), $ CYFunctionExpression(NULL, parameters_->Parameters(context), code_), parameters_->TypeSignature(context, typed_->Replace(context)));
}
-void CYMember::Replace_(CYContext &context) {
- context.Replace(object_);
- context.Replace(property_);
+CYStatement *CYLetStatement::Replace(CYContext &context) {
+ return $E($ CYCall(CYNonLocalize(context, $ CYFunctionExpression(NULL, declarations_->Parameter(context), code_)), declarations_->Argument(context)));
+}
+
+CYString *CYModule::Replace(CYContext &context, const char *separator) const {
+ if (next_ == NULL)
+ return $ CYString(part_);
+ return $ CYString($pool.strcat(next_->Replace(context, separator)->Value(), separator, part_->Word(), NULL));
}
-CYExpression *CYNew::Replace(CYContext &context) {
+CYExpression *CYMultiply::Replace(CYContext &context) {
+ CYInfix::Replace(context);
+
+ if (CYNumber *lhn = lhs_->Number(context))
+ if (CYNumber *rhn = rhs_->Number(context))
+ return $D(lhn->Value() * rhn->Value());
+
+ return this;
+}
+
+namespace cy {
+namespace Syntax {
+
+CYExpression *New::AddArgument(CYContext &context, CYExpression *value) {
+ CYSetLast(arguments_) = $ CYArgument(value);
+ return this;
+}
+
+CYExpression *New::Replace(CYContext &context) {
context.Replace(constructor_);
arguments_->Replace(context);
return this;
}
+} }
+
CYNumber *CYNull::Number(CYContext &context) {
return $D(0);
}
CYString *CYNumber::String(CYContext &context) {
// XXX: there is a precise algorithm for this
- return $S(apr_psprintf(context.pool_, "%.17g", Value()));
+ return $S($pool.sprintf(24, "%.17g", Value()));
}
CYExpression *CYObject::Replace(CYContext &context) {
return this;
}
+CYExpression *CYParenthetical::Replace(CYContext &context) {
+ return expression_;
+}
+
CYExpression *CYPostfix::Replace(CYContext &context) {
context.Replace(lhs_);
return this;
return this;
}
-void CYProgram::Replace(CYContext &context) {
- parent_ = context.scope_;
- CYProgram *program(context.program_);
+// XXX: this is evil evil black magic. don't ask, don't tell... don't believe!
+#define MappingSet "0etnirsoalfucdphmgyvbxTwSNECAFjDLkMOIBPqzRH$_WXUVGYKQJZ"
+//#define MappingSet "0abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_"
- context.scope_ = this;
- context.program_ = this;
+namespace {
+ struct IdentifierUsageLess :
+ std::binary_function<CYIdentifier *, CYIdentifier *, bool>
+ {
+ _finline bool operator ()(CYIdentifier *lhs, CYIdentifier *rhs) const {
+ if (lhs->usage_ != rhs->usage_)
+ return lhs->usage_ > rhs->usage_;
+ return lhs < rhs;
+ }
+ };
+
+ typedef std::set<CYIdentifier *, IdentifierUsageLess> IdentifierUsages;
+}
- statements_ = statements_->ReplaceAll(context);
+void CYScript::Replace(CYContext &context) {
+ CYScope scope(true, context);
- context.scope_ = parent_;
- context.program_ = program;
- Scope(context, statements_);
+ context.nextlocal_ = $ CYNonLocal();
+ context.ReplaceAll(code_);
+ context.NonLocal(code_);
+
+ scope.Close(context, code_);
size_t offset(0);
+ CYCStringSet external;
+ for (CYIdentifierValueSet::const_iterator i(scope.identifiers_.begin()); i != scope.identifiers_.end(); ++i)
+ external.insert((*i)->Word());
+
+ IdentifierUsages usages;
+
+ if (offset < context.rename_.size())
+ CYForEach (i, context.rename_[offset].identifier_)
+ usages.insert(i);
+
// XXX: totalling the probable occurrences and sorting by them would improve the result
- for (CYIdentifierAddressVector::const_iterator i(rename_.begin()); i != rename_.end(); ++i, ++offset) {
+ for (CYIdentifierUsageVector::const_iterator i(context.rename_.begin()); i != context.rename_.end(); ++i, ++offset) {
+ //std::cout << *i << ":" << (*i)->offset_ << std::endl;
+
const char *name;
if (context.options_.verbose_)
- name = apr_psprintf(context.pool_, "$%"APR_SIZE_T_FMT"", offset);
+ name = $pool.strcat("$", $pool.itoa(offset), NULL);
else {
char id[8];
id[7] = '\0';
unsigned position(7), local(offset + 1);
do {
- unsigned index(local % 53);
- local /= 53;
- id[--position] = index == 0 ? '0' : index < 27 ? index - 1 + 'a' : index - 27 + 'A';
+ unsigned index(local % (sizeof(MappingSet) - 1));
+ local /= sizeof(MappingSet) - 1;
+ id[--position] = MappingSet[index];
} while (local != 0);
- if (external_.find(id + position) != external_.end()) {
+ if (external.find(id + position) != external.end()) {
++offset;
goto id;
}
- name = apr_pstrmemdup(context.pool_, id + position, 7 - position);
+ name = $pool.strmemdup(id + position, 7 - position);
// XXX: at some point, this could become a keyword
}
- for (CYIdentifier *identifier(*i); identifier != NULL; identifier = identifier->next_)
+ CYForEach (identifier, i->identifier_)
identifier->Set(name);
}
}
void CYProperty::Replace(CYContext &context) { $T()
context.Replace(value_);
next_->Replace(context);
+ if (value_ == NULL)
+ value_ = $U;
}
CYStatement *CYReturn::Replace(CYContext &context) {
+ if (context.nonlocal_ != NULL) {
+ CYProperty *value(value_ == NULL ? NULL : $ CYProperty($S("$cyv"), value_));
+ return $ cy::Syntax::Throw($ CYObject(
+ $ CYProperty($S("$cyk"), $V(context.nonlocal_->Target(context)), value)
+ ));
+ }
+
context.Replace(value_);
return this;
}
+CYExpression *CYRubyBlock::Replace(CYContext &context) {
+ return call_->AddArgument(context, proc_->Replace(context));
+}
+
+CYExpression *CYRubyProc::Replace(CYContext &context) {
+ CYFunctionExpression *function($ CYFunctionExpression(NULL, parameters_, code_));
+ function = CYNonLocalize(context, function);
+ function->implicit_ = true;
+ return function;
+}
+
+CYScope::CYScope(bool transparent, CYContext &context) :
+ transparent_(transparent),
+ parent_(context.scope_)
+{
+ context.scope_ = this;
+}
+
void CYScope::Declare(CYContext &context, CYIdentifier *identifier, CYIdentifierFlags flags) {
- internal_.insert(CYIdentifierAddressFlagsMap::value_type(identifier, flags));
+ if (!transparent_ || flags == CYIdentifierArgument || flags == CYIdentifierCatch)
+ internal_.insert(CYIdentifierAddressFlagsMap::value_type(identifier, flags));
+ else if (parent_ != NULL)
+ parent_->Declare(context, identifier, flags);
}
CYIdentifier *CYScope::Lookup(CYContext &context, CYIdentifier *identifier) {
return *insert.first;
}
-void CYScope::Merge(CYContext &context, CYIdentifierAddressVector &external) {
- for (CYIdentifierAddressVector::const_iterator i(external.begin()); i != external.end(); ++i) {
- std::pair<CYIdentifierAddressSet::iterator, bool> insert(identifiers_.insert(*i));
- if (!insert.second)
- (*i)->replace_ = *insert.first;
+void CYScope::Merge(CYContext &context, CYIdentifier *identifier) {
+ std::pair<CYIdentifierValueSet::iterator, bool> insert(identifiers_.insert(identifier));
+ if (!insert.second) {
+ if ((*insert.first)->offset_ < identifier->offset_)
+ (*insert.first)->offset_ = identifier->offset_;
+ identifier->replace_ = *insert.first;
+ (*insert.first)->usage_ += identifier->usage_ + 1;
}
}
-void CYScope::Scope(CYContext &context, CYStatement *&statements) {
- CYIdentifierAddressVector external;
+namespace {
+ struct IdentifierOffset {
+ size_t offset_;
+ CYIdentifierFlags flags_;
+ size_t usage_;
+ CYIdentifier *identifier_;
- for (CYIdentifierValueSet::const_iterator i(identifiers_.begin()); i != identifiers_.end(); ++i)
- if (internal_.find(*i) == internal_.end())
- external.push_back(*i);
+ IdentifierOffset(CYIdentifier *identifier, CYIdentifierFlags flags) :
+ offset_(identifier->offset_),
+ flags_(flags),
+ usage_(identifier->usage_),
+ identifier_(identifier)
+ {
+ }
+ };
+
+ struct IdentifierOffsetLess :
+ std::binary_function<const IdentifierOffset &, const IdentifierOffset &, bool>
+ {
+ _finline bool operator ()(const IdentifierOffset &lhs, const IdentifierOffset &rhs) const {
+ if (lhs.offset_ != rhs.offset_)
+ return lhs.offset_ < rhs.offset_;
+ if (lhs.flags_ != rhs.flags_)
+ return lhs.flags_ < rhs.flags_;
+ /*if (lhs.usage_ != rhs.usage_)
+ return lhs.usage_ < rhs.usage_;*/
+ return lhs.identifier_ < rhs.identifier_;
+ }
+ };
+
+ typedef std::set<IdentifierOffset, IdentifierOffsetLess> IdentifierOffsets;
+}
+
+void CYScope::Close(CYContext &context, CYStatement *&statements) {
+ context.scope_ = parent_;
+
+ if (parent_ == NULL)
+ return;
CYDeclarations *last(NULL), *curr(NULL);
- CYProgram *program(context.program_);
-
- // XXX: we don't want to do this in order, we want to sort it by probable occurrence
- for (CYIdentifierAddressFlagsMap::const_iterator i(internal_.begin()); i != internal_.end(); ++i) {
- if (program != NULL && i->second != CYIdentifierMagic) {
- if (program->rename_.size() <= offset_)
- program->rename_.resize(offset_ + 1);
- CYIdentifier *&identifier(program->rename_[offset_++]);
- i->first->SetNext(identifier);
- identifier = i->first;
- }
- if (i->second == CYIdentifierVariable) {
- CYDeclarations *next($ CYDeclarations($ CYDeclaration(i->first)));
+ IdentifierOffsets offsets;
+
+ for (CYIdentifierAddressFlagsMap::const_iterator i(internal_.begin()); i != internal_.end(); ++i)
+ if (i->second != CYIdentifierMagic)
+ offsets.insert(IdentifierOffset(i->first, i->second));
+
+ size_t offset(0);
+
+ for (IdentifierOffsets::const_iterator i(offsets.begin()); i != offsets.end(); ++i) {
+ if (i->flags_ == CYIdentifierVariable) {
+ CYDeclarations *next($ CYDeclarations($ CYDeclaration(i->identifier_)));
if (last == NULL)
last = next;
if (curr != NULL)
curr->SetNext(next);
curr = next;
}
+
+ if (offset < i->offset_)
+ offset = i->offset_;
+ if (context.rename_.size() <= offset)
+ context.rename_.resize(offset + 1);
+
+ CYIdentifierUsage &rename(context.rename_[offset++]);
+ i->identifier_->SetNext(rename.identifier_);
+ rename.identifier_ = i->identifier_;
+ rename.usage_ += i->identifier_->usage_ + 1;
}
if (last != NULL) {
statements = var;
}
- if (parent_ != NULL) {
- if (parent_->offset_ < offset_)
- parent_->offset_ = offset_;
- parent_->Merge(context, external);
- } else if (program != NULL)
- for (CYIdentifierAddressVector::const_iterator i(external.begin()); i != external.end(); ++i)
- program->external_.insert((*i)->Word());
+ for (CYIdentifierValueSet::const_iterator i(identifiers_.begin()); i != identifiers_.end(); ++i)
+ if (internal_.find(*i) == internal_.end()) {
+ //std::cout << *i << '=' << offset << std::endl;
+ if ((*i)->offset_ < offset)
+ (*i)->offset_ = offset;
+ parent_->Merge(context, *i);
+ }
}
-CYStatement *CYStatement::Collapse(CYContext &context) {
- return this;
+CYElementValue *CYSpan::Replace(CYContext &context) { $T(NULL)
+ return $ CYElementValue(expression_, $ CYElementValue(string_, next_->Replace(context)));
}
-CYStatement *CYStatement::ReplaceAll(CYContext &context) { $T(NULL)
- CYStatement *replace(this);
- context.Replace(replace);
- replace->SetNext(next_->ReplaceAll(context));
- return replace->Collapse(context);
+CYStatement *CYStatement::Return() {
+ return this;
}
CYString *CYString::Concat(CYContext &context, CYString *rhs) const {
size_t size(size_ + rhs->size_);
- char *value(new(context.pool_) char[size + 1]);
+ char *value($ char[size + 1]);
memcpy(value, value_, size_);
memcpy(value + size_, rhs->value_, rhs->size_);
value[size] = '\0';
return this;
}
+CYExpression *CYTemplate::Replace(CYContext &context) {
+ return $C2($M($M($M($V("String"), $S("prototype")), $S("concat")), $S("apply")), $S(""), $ CYArray($ CYElementValue(string_, spans_->Replace(context))));
+}
+
CYExpression *CYThis::Replace(CYContext &context) {
+ if (context.this_ != NULL)
+ return $V(context.this_->Identifier(context));
return this;
}
namespace Syntax {
CYStatement *Try::Replace(CYContext &context) {
- code_.Replace(context);
+ context.ReplaceAll(code_);
catch_->Replace(context);
finally_->Replace(context);
return this;
} }
+CYExpression *CYTypeArrayOf::Replace_(CYContext &context, CYExpression *type) {
+ return next_->Replace(context, $ CYCall($ CYDirectMember(type, $ CYString("arrayOf")), $ CYArgument(size_)));
+}
+
+CYExpression *CYTypeBlockWith::Replace_(CYContext &context, CYExpression *type) {
+ return next_->Replace(context, $ CYCall($ CYDirectMember(type, $ CYString("blockWith")), parameters_->Argument(context)));
+}
+
+CYExpression *CYTypeConstant::Replace_(CYContext &context, CYExpression *type) {
+ return next_->Replace(context, $ CYCall($ CYDirectMember(type, $ CYString("constant"))));
+}
+
+CYStatement *CYTypeDefinition::Replace(CYContext &context) {
+ return $E($ CYAssign($V(typed_->identifier_), typed_->Replace(context)));
+}
+
+CYExpression *CYTypeError::Replace(CYContext &context) {
+ _assert(false);
+ return NULL;
+}
+
+CYExpression *CYTypeModifier::Replace(CYContext &context, CYExpression *type) { $T(type)
+ return Replace_(context, type);
+}
+
+CYExpression *CYTypeFunctionWith::Replace_(CYContext &context, CYExpression *type) {
+ return next_->Replace(context, $ CYCall($ CYDirectMember(type, $ CYString("functionWith")), parameters_->Argument(context)));
+}
+
+CYExpression *CYTypeLong::Replace(CYContext &context) {
+ return $ CYCall($ CYDirectMember(specifier_->Replace(context), $ CYString("long")));
+}
+
+CYExpression *CYTypePointerTo::Replace_(CYContext &context, CYExpression *type) {
+ return next_->Replace(context, $ CYCall($ CYDirectMember(type, $ CYString("pointerTo"))));
+}
+
+CYExpression *CYTypeShort::Replace(CYContext &context) {
+ return $ CYCall($ CYDirectMember(specifier_->Replace(context), $ CYString("short")));
+}
+
+CYExpression *CYTypeSigned::Replace(CYContext &context) {
+ return $ CYCall($ CYDirectMember(specifier_->Replace(context), $ CYString("signed")));
+}
+
+CYExpression *CYTypeUnsigned::Replace(CYContext &context) {
+ return $ CYCall($ CYDirectMember(specifier_->Replace(context), $ CYString("unsigned")));
+}
+
+CYExpression *CYTypeVariable::Replace(CYContext &context) {
+ return $V(name_);
+}
+
+CYExpression *CYTypeVoid::Replace(CYContext &context) {
+ return $N1($V("Type"), $ CYString("v"));
+}
+
+CYExpression *CYTypeVolatile::Replace_(CYContext &context, CYExpression *type) {
+ return next_->Replace(context, $ CYCall($ CYDirectMember(type, $ CYString("volatile"))));
+}
+
+CYExpression *CYTypedIdentifier::Replace(CYContext &context) {
+ return modifier_->Replace(context, specifier_->Replace(context));
+}
+
+CYTypeFunctionWith *CYTypedIdentifier::Function() {
+ CYTypeModifier **modifier(&modifier_);
+ if (*modifier == NULL)
+ return NULL;
+ while ((*modifier)->next_ != NULL)
+ modifier = &(*modifier)->next_;
+ CYTypeFunctionWith *function((*modifier)->Function());
+ if (function == NULL)
+ return NULL;
+ *modifier = NULL;
+ return function;
+}
+
+CYArgument *CYTypedParameter::Argument(CYContext &context) { $T(NULL)
+ return $ CYArgument(typed_->Replace(context), next_->Argument(context));
+}
+
+CYFunctionParameter *CYTypedParameter::Parameters(CYContext &context) { $T(NULL)
+ return $ CYFunctionParameter($ CYDeclaration(typed_->identifier_ ?: context.Unique()), next_->Parameters(context));
+}
+
+CYExpression *CYTypedParameter::TypeSignature(CYContext &context, CYExpression *prefix) { $T(prefix)
+ return next_->TypeSignature(context, $ CYAdd(prefix, typed_->Replace(context)));
+}
+
CYStatement *CYVar::Replace(CYContext &context) {
- return $E(declarations_->Replace(context));
+ declarations_->Replace(context);
+ if (CYExpression *expression = declarations_->Expression(context))
+ return $E(expression);
+ return $ CYEmpty();
}
CYExpression *CYVariable::Replace(CYContext &context) {
- name_ = name_->Replace(context);
+ context.Replace(name_);
return this;
}
+CYFunctionParameter *CYVariable::Parameter() const {
+ return $ CYFunctionParameter($ CYDeclaration(name_));
+}
+
CYStatement *CYWhile::Replace(CYContext &context) {
context.Replace(test_);
- context.Replace(code_);
+ context.ReplaceAll(code_);
return this;
}
CYStatement *CYWith::Replace(CYContext &context) {
context.Replace(scope_);
- context.Replace(code_);
+ context.ReplaceAll(code_);
return this;
}
projects / cycript.git / blobdiff