Adds a variable to the context.
|
public addVariable ( |
||
| $variable | ||
| return | boolean | |
/**
* $a &= $b;
*
* @param \PhpParser\Node\Expr\AssignRef $expr
* @param Context $context
* @return CompiledExpression
*/
protected function compile($expr, Context $context)
{
$compiler = $context->getExpressionCompiler();
if ($expr->var instanceof VariableNode) {
$name = $expr->var->name;
$compiledExpression = $compiler->compile($expr->expr);
$symbol = $context->getSymbol($name);
if ($symbol) {
$symbol->modify($compiledExpression->getType(), $compiledExpression->getValue());
} else {
$symbol = new \PHPSA\Variable($name, $compiledExpression->getValue(), $compiledExpression->getType(), $context->getCurrentBranch());
$context->addVariable($symbol);
}
if ($expr->expr instanceof VariableNode) {
$rightVarName = $expr->expr->name;
$rightSymbol = $context->getSymbol($rightVarName);
if ($rightSymbol) {
$rightSymbol->incUse();
$symbol->setReferencedTo($rightSymbol);
} else {
$context->debug('Cannot fetch variable by name: ' . $rightVarName);
}
}
$symbol->incSets();
return $compiledExpression;
}
$context->debug('Unknown how to pass symbol by ref');
return new CompiledExpression();
}
/**
* @param \PhpParser\Node\Stmt\Catch_ $statement
* @param Context $context
*/
public function compile($statement, Context $context)
{
$context->addVariable(new Variable($statement->var, null, CompiledExpression::OBJECT));
foreach ($statement->stmts as $stmt) {
\PHPSA\nodeVisitorFactory($stmt, $context);
}
}
/**
* Compile function to check it
*
* @param Context $context
* @return bool
*/
public function compile(Context $context)
{
if ($this->compiled) {
return true;
}
$context->setFilepath($this->filepath);
$this->compiled = true;
$context->scopePointer = $this->getPointer();
$context->setScope(null);
$context->getEventManager()->fire(Event\StatementBeforeCompile::EVENT_NAME, new Event\StatementBeforeCompile($this->statement, $context));
if (count($this->statement->params) > 0) {
/** @var Node\Param $parameter */
foreach ($this->statement->params as $parameter) {
$type = CompiledExpression::UNKNOWN;
if ($parameter->type) {
if (is_string($parameter->type)) {
$type = Types::getType($parameter->type);
} elseif ($parameter->type instanceof Node\Name) {
$type = CompiledExpression::OBJECT;
}
}
$context->addVariable(new Parameter($parameter->name, null, $type, $parameter->byRef));
}
}
foreach ($this->statement->stmts as $st) {
\PHPSA\nodeVisitorFactory($st, $context);
}
return true;
}
/**
* @param Context $context
* @return boolean|null
*/
public function compile(Context $context)
{
$context->getEventManager()->fire(Event\StatementBeforeCompile::EVENT_NAME, new Event\StatementBeforeCompile($this->statement, $context));
$this->compiled = true;
$context->scopePointer = $this->getPointer();
/**
* It's not needed to compile empty method via it's abstract
*/
if ($this->isAbstract()) {
/** @var ClassDefinition $scope */
$scope = $context->scope;
if (!$scope->isAbstract()) {
$context->notice('not-abstract-class-with-abstract-method', 'Class must be abstract', $this->statement);
}
return true;
}
if ($this->statement->params) {
foreach ($this->statement->params as $parameter) {
$type = CompiledExpression::UNKNOWN;
if ($parameter->type) {
if (is_string($parameter->type)) {
$type = Types::getType($parameter->type);
} elseif ($parameter->type instanceof Node\Name) {
$type = CompiledExpression::OBJECT;
}
}
$context->addVariable(new Parameter($parameter->name, null, $type, $parameter->byRef));
}
}
foreach ($this->statement->stmts as $st) {
\PHPSA\nodeVisitorFactory($st, $context);
}
}
/**
* @param Node\Expr\AssignRef $expr
* @return CompiledExpression
*/
protected function passSymbolByRef(Node\Expr\AssignRef $expr)
{
if ($expr->var instanceof \PhpParser\Node\Expr\List_) {
return new CompiledExpression();
}
if ($expr->var instanceof Node\Expr\Variable) {
$name = $expr->var->name;
$expression = new Expression($this->context);
$compiledExpression = $expression->compile($expr->expr);
$symbol = $this->context->getSymbol($name);
if ($symbol) {
$symbol->modify($compiledExpression->getType(), $compiledExpression->getValue());
if ($expr->expr instanceof Node\Expr\Variable) {
$rightVarName = $expr->expr->name;
$rightSymbol = $this->context->getSymbol($rightVarName);
if ($rightSymbol) {
$rightSymbol->incUse();
$symbol->setReferencedTo($rightSymbol);
} else {
$this->context->debug('Cannot fetch variable by name: ' . $rightVarName);
}
}
$this->context->debug('Unknown how to pass referenced to symbol: ' . get_class($expr->expr));
} else {
$symbol = new Variable($name, $compiledExpression->getValue(), $compiledExpression->getType(), true);
$this->context->addVariable($symbol);
}
$symbol->incSets();
return $compiledExpression;
}
$this->context->debug('Unknown how to pass symbol by ref');
return new CompiledExpression();
}
/**
* @param Context $context
* @return boolean|null
*/
public function compile(Context $context)
{
$this->compiled = true;
$context->scopePointer = $this->getPointer();
if ($this->statement->getDocComment() === null) {
$context->notice('missing-docblock', sprintf('Missing docblock for %s() method', $this->name), $this->statement);
}
/**
* It's not needed to compile empty method via it's abstract
*/
if ($this->isAbstract()) {
/** @var ClassDefinition $scope */
$scope = $context->scope;
if (!$scope->isAbstract()) {
$context->notice('not-abstract-class-with-abstract-method', 'Class must be an abstract', $this->statement);
}
return true;
}
if (count($this->statement->stmts) == 0) {
return $context->notice('not-implemented-method', sprintf('Method %s() is not implemented', $this->name), $this->statement);
}
if (count($this->statement->params) > 0) {
/** @var Node\Param $parameter */
foreach ($this->statement->params as $parameter) {
$context->addVariable(new Parameter($parameter->name, CompiledExpression::UNKNOWN, null, $parameter->byRef));
}
}
foreach ($this->statement->stmts as $st) {
\PHPSA\nodeVisitorFactory($st, $context);
}
}
/**
* @param Node\Expr\Variable $expr
* @param mixed $value
* @param int $type
* @return CompiledExpression
*/
public function declareVariable(Node\Expr\Variable $expr, $value = null, $type = CompiledExpression::UNKNOWN)
{
$variable = $this->context->getSymbol($expr->name);
if (!$variable) {
$variable = new Variable($expr->name, $value, $type, $this->context->getCurrentBranch());
$this->context->addVariable($variable);
}
return new CompiledExpression($variable->getType(), $variable->getValue(), $variable);
}
protected function compileVariableDeclaration(CompiledExpression $variableName, CompiledExpression $value, Context $context)
{
switch ($variableName->getType()) {
case CompiledExpression::STRING:
break;
default:
$context->debug('Unexpected type of Variable name after compile');
return new CompiledExpression();
}
$symbol = $context->getSymbol($variableName->getValue());
if ($symbol) {
$symbol->modify($value->getType(), $value->getValue());
$context->modifyReferencedVariables($symbol, $value->getType(), $value->getValue());
} else {
$symbol = new \PHPSA\Variable($variableName->getValue(), $value->getValue(), $value->getType(), $context->getCurrentBranch());
$context->addVariable($symbol);
}
$symbol->incSets();
}
/**
* @param Node\Expr\Assign $expr
* @return CompiledExpression|Expression
*/
protected function passSymbol(Node\Expr\Assign $expr)
{
if ($expr->var instanceof \PhpParser\Node\Expr\List_) {
return new CompiledExpression();
}
if ($expr->var instanceof Node\Expr\Variable) {
$name = $expr->var->name;
$compiledExpression = new Expression($this->context);
$result = $compiledExpression->compile($expr->expr);
$symbol = $this->context->getSymbol($name);
if ($symbol) {
$symbol->modify($result->getType(), $result->getValue());
} else {
$symbol = new Variable($name, $result->getValue(), $result->getType());
$this->context->addVariable($symbol);
}
$symbol->incSets();
return $compiledExpression;
}
$this->context->debug('Unknown how to pass symbol');
return new CompiledExpression();
}
/**
* Compile methods to check it
*
* @param Context $context
*/
public function compile(Context $context)
{
$context->setScope($this);
foreach ($this->methods as $method) {
$context->clearSymbols();
if (!$method->isStatic()) {
$thisPtr = new Variable('this', $this, CompiledExpression::OBJECT);
$thisPtr->incGets();
$context->addVariable($thisPtr);
}
$method->compile($context);
$symbols = $context->getSymbols();
if (count($symbols) > 0) {
foreach ($symbols as $name => $variable) {
if ($variable->isUnused()) {
$context->warning('unused-variable', sprintf('Unused variable $%s in method %s()', $variable->getName(), $method->getName()));
}
}
}
}
}
/**
* Compile function to check it
*
* @param Context $context
* @return bool
*/
public function compile(Context $context)
{
if ($this->compiled) {
return true;
}
$context->setFilepath($this->filepath);
$this->compiled = true;
$context->clearSymbols();
$context->scopePointer = $this->getPointer();
$context->setScope(null);
if (count($this->statement->stmts) == 0) {
return $context->notice('not-implemented-function', sprintf('Closure %s() is not implemented', $this->name), $this->statement);
}
if (count($this->statement->params) > 0) {
/** @var Node\Param $parameter */
foreach ($this->statement->params as $parameter) {
$type = CompiledExpression::UNKNOWN;
if ($parameter->type) {
if (is_string($parameter->type)) {
$type = Types::getType($parameter->type);
} elseif ($parameter->type instanceof Node\Name) {
$type = CompiledExpression::OBJECT;
}
}
$context->addVariable(new Parameter($parameter->name, null, $type, $parameter->byRef));
}
}
foreach ($this->statement->stmts as $st) {
\PHPSA\nodeVisitorFactory($st, $context);
}
return true;
}
/**
* @param Context $context
* @return $this
*/
public function compile(Context $context)
{
if ($this->compiled) {
return true;
}
$this->compiled = true;
$context->setFilepath($this->filepath);
$context->setScope($this);
$context->getEventManager()->fire(Event\StatementBeforeCompile::EVENT_NAME, new Event\StatementBeforeCompile($this->statement, $context));
// Compile event for properties
foreach ($this->properties as $property) {
if (!$property->default) {
continue;
}
// fire expression event for property default
$context->getEventManager()->fire(Event\ExpressionBeforeCompile::EVENT_NAME, new Event\ExpressionBeforeCompile($property->default, $context));
}
// Compile event for PropertyProperty
foreach ($this->properties as $property) {
$context->getEventManager()->fire(Event\StatementBeforeCompile::EVENT_NAME, new Event\StatementBeforeCompile($property, $context));
}
// Compile event for constants
foreach ($this->constants as $const) {
$context->getEventManager()->fire(Event\StatementBeforeCompile::EVENT_NAME, new Event\StatementBeforeCompile($const, $context));
}
// Compiler event for property statements
foreach ($this->propertyStatements as $prop) {
$context->getEventManager()->fire(Event\StatementBeforeCompile::EVENT_NAME, new Event\StatementBeforeCompile($prop, $context));
}
// Compile each method
foreach ($this->methods as $method) {
$context->clearSymbols();
if (!$method->isStatic()) {
$thisPtr = new Variable('this', $this, CompiledExpression::OBJECT);
$thisPtr->incGets();
$context->addVariable($thisPtr);
}
$method->compile($context);
$symbols = $context->getSymbols();
if (count($symbols) > 0) {
foreach ($symbols as $name => $variable) {
if ($variable->isUnused()) {
$context->warning('unused-' . $variable->getSymbolType(), sprintf('Unused ' . $variable->getSymbolType() . ' $%s in method %s()', $variable->getName(), $method->getName()));
}
}
}
}
return $this;
}