Twig_Compiler Class Reference

Compiles a node to PHP code. More...

Inheritance diagram for Twig_Compiler:

Collaboration diagram for Twig_Compiler:

Public Member Functions
	__construct (Twig_Environment $env)
	getFilename ()
	getEnvironment ()
	Returns the environment instance related to this compiler. More...
	getSource ()
	Gets the current PHP code after compilation. More...
	compile (Twig_NodeInterface $node, $indentation=0)
	Compiles a node. More...
	subcompile (Twig_NodeInterface $node, $raw=true)
	raw ($string)
	Adds a raw string to the compiled code. More...
	write ()
	Writes a string to the compiled code by adding indentation. More...
	addIndentation ()
	Appends an indentation to the current PHP code after compilation. More...
	string ($value)
	Adds a quoted string to the compiled code. More...
	repr ($value)
	Returns a PHP representation of a given value. More...
	addDebugInfo (Twig_NodeInterface $node)
	Adds debugging information. More...
	getDebugInfo ()
	indent ($step=1)
	Indents the generated code. More...
	outdent ($step=1)
	Outdents the generated code. More...
	getVarName ()
Public Member Functions inherited from Twig_CompilerInterface
	compile (Twig_NodeInterface $node)
	Compiles a node. More...
	getSource ()
	Gets the current PHP code after compilation. More...

Protected Attributes
	$lastLine
	$source
	$indentation
	$env
	$debugInfo = array()
	$sourceOffset
	$sourceLine
	$filename

Private Attributes
	$varNameSalt = 0

Detailed Description

Compiles a node to PHP code.

Author

Fabien Potencier fabie.nosp@m.n@sy.nosp@m.mfony.nosp@m..com

Definition at line 18 of file Compiler.php.

Constructor & Destructor Documentation

__construct()

Twig_Compiler::__construct

(

Twig_Environment

$env

)

Definition at line 30 of file Compiler.php.

    {
        $this->env = $env;
    }

References $env.

Member Function Documentation

addDebugInfo()

Twig_Compiler::addDebugInfo

(

Twig_NodeInterface

$node

)

Adds debugging information.

Returns

$this

Definition at line 212 of file Compiler.php.

    {
        if ($node->getTemplateLine() != $this->lastLine) {
            $this->write(sprintf("// line %d\n", $node->getTemplateLine()));
 
            // when mbstring.func_overload is set to 2
            // mb_substr_count() replaces substr_count()
            // but they have different signatures!
            if (((int) ini_get('mbstring.func_overload')) & 2) {
                @trigger_error('Support for having "mbstring.func_overload" different from 0 is deprecated version 1.29 and will be removed in 2.0.', E_USER_DEPRECATED);
 
                // this is much slower than the "right" version
                $this->sourceLine += mb_substr_count(mb_substr($this->source, $this->sourceOffset), "\n");
            } else {
                $this->sourceLine += substr_count($this->source, "\n", $this->sourceOffset);
            }
            $this->sourceOffset = strlen($this->source);
            $this->debugInfo[$this->sourceLine] = $node->getTemplateLine();
 
            $this->lastLine = $node->getTemplateLine();
        }
 
        return $this;
    }

References $sourceLine, sprintf, and write().

Referenced by Twig_Extensions_Node_Trans\compile(), Twig_Node_Block\compile(), Twig_Node_BlockReference\compile(), Twig_Node_Do\compile(), Twig_Node_Expression_BlockReference\compile(), Twig_Node_Expression_Name\compile(), Twig_Node_Expression_Parent\compile(), Twig_Node_Flush\compile(), Twig_Node_For\compile(), Twig_Node_If\compile(), Twig_Node_Import\compile(), Twig_Node_Include\compile(), Twig_Node_Macro\compile(), Twig_Node_Print\compile(), Twig_Node_Sandbox\compile(), Twig_Node_SandboxedPrint\compile(), Twig_Node_Set\compile(), Twig_Node_SetTemp\compile(), Twig_Node_Spaceless\compile(), Twig_Node_Text\compile(), Twig_Node_With\compile(), Twig_Node_Module\compileConstructor(), and compileDisplay().

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addIndentation()

Twig_Compiler::addIndentation

(

)

Appends an indentation to the current PHP code after compilation.

Returns

$this

Deprecated:

since 1.27 (to be removed in 2.0).

Definition at line 141 of file Compiler.php.

    {
        @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0. Use write(\'\') instead.', E_USER_DEPRECATED);
 
        $this->source .= str_repeat(' ', $this->indentation * 4);
 
        return $this;
    }

compile()

Twig_Compiler::compile	(	Twig_NodeInterface	$node,
			$indentation = 0
	)

Compiles a node.

Parameters

Twig_NodeInterface	$node	The node to compile
int	$indentation	The current indentation

Returns

$this

Definition at line 73 of file Compiler.php.

    {
        $this->lastLine = null;
        $this->source = '';
        $this->debugInfo = array();
        $this->sourceOffset = 0;
        // source code starts at 1 (as we then increment it when we encounter new lines)
        $this->sourceLine = 1;
        $this->indentation = $indentation;
        $this->varNameSalt = 0;
 
        if ($node instanceof Twig_Node_Module) {
            // to be removed in 2.0
            $this->filename = $node->getTemplateName();
        }
 
        $node->compile($this);
 
        return $this;
    }

References $indentation, and Twig_NodeInterface\compile().

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getDebugInfo()

Twig_Compiler::getDebugInfo

(

)

Definition at line 237 of file Compiler.php.

    {
        ksort($this->debugInfo);
 
        return $this->debugInfo;
    }

References $debugInfo.

Referenced by compileDebugInfo().

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getEnvironment()

Twig_Compiler::getEnvironment

(

)

Returns the environment instance related to this compiler.

Returns

Twig_Environment

Definition at line 50 of file Compiler.php.

    {
        return $this->env;
    }

References $env.

Referenced by Twig_Node_Expression_Filter\compile(), Twig_Node_Expression_Function\compile(), Twig_Node_Expression_Name\compile(), Twig_Node_Expression_Test\compile(), Twig_Node_Module\compileClassHeader(), and compileGetSourceContext().

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getFilename()

Twig_Compiler::getFilename

(

)

Deprecated:

since 1.25 (to be removed in 2.0)

Definition at line 38 of file Compiler.php.

    {
        @trigger_error(sprintf('The %s() method is deprecated since version 1.25 and will be removed in 2.0.', __FUNCTION__), E_USER_DEPRECATED);
 
        return $this->filename;
    }

References $filename, and sprintf.

getSource()

Twig_Compiler::getSource

(

)

Gets the current PHP code after compilation.

Returns

string The PHP code

Implements Twig_CompilerInterface.

Definition at line 60 of file Compiler.php.

    {
        return $this->source;
    }

References $source.

getVarName()

Twig_Compiler::getVarName

(

)

Definition at line 279 of file Compiler.php.

    {
        return sprintf('__internal_%s', hash('sha256', __METHOD__.$this->varNameSalt++));
    }

References GuzzleHttp\Psr7\hash(), and sprintf.

Referenced by Twig_Node_Expression_Binary_EndsWith\compile(), Twig_Node_Expression_Binary_StartsWith\compile(), and Twig_Node_With\compile().

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indent()

Twig_Compiler::indent

(

$step = 1

)

Indents the generated code.

Parameters

int

$step

The number of indentation to add

Returns

$this

Definition at line 251 of file Compiler.php.

    {
        $this->indentation += $step;
 
        return $this;
    }

Referenced by Twig_Node_Module\compileConstructor().

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outdent()

Twig_Compiler::outdent

(

$step = 1

)

Outdents the generated code.

Parameters

int

$step

The number of indentation to remove

Returns

$this

Exceptions

LogicException

When trying to outdent too much so the indentation would become negative

Definition at line 267 of file Compiler.php.

    {
        // can't outdent by more steps than the current indentation level
        if ($this->indentation < $step) {
            throw new LogicException('Unable to call outdent() as the indentation would become negative.');
        }
 
        $this->indentation -= $step;
 
        return $this;
    }

Referenced by Twig_Node_If\compile(), Twig_Node_Include\compile(), Twig_Node_Macro\compile(), and Twig_Node_Module\compileConstructor().

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raw()

Twig_Compiler::raw

(

$string

)

Adds a raw string to the compiled code.

Parameters

string

$string

The string

Returns

$this

Definition at line 112 of file Compiler.php.

    {
        $this->source .= $string;
 
        return $this;
    }

Referenced by Twig_Node_Include\addTemplateArguments(), Twig_Extensions_Node_Trans\compile(), Twig_Node_Expression_Array\compile(), Twig_Node_Expression_AssignName\compile(), Twig_Node_Expression_Binary\compile(), Twig_Node_Expression_Binary_EndsWith\compile(), Twig_Node_Expression_Binary_FloorDiv\compile(), Twig_Node_Expression_Binary_In\compile(), Twig_Node_Expression_Binary_Matches\compile(), Twig_Node_Expression_Binary_NotIn\compile(), Twig_Node_Expression_Binary_Power\compile(), Twig_Node_Expression_Binary_Range\compile(), Twig_Node_Expression_Binary_StartsWith\compile(), Twig_Node_Expression_Conditional\compile(), Twig_Node_Expression_ExtensionReference\compile(), Twig_Node_Expression_GetAttr\compile(), Twig_Node_Expression_MethodCall\compile(), Twig_Node_Expression_Name\compile(), Twig_Node_Expression_NullCoalesce\compile(), Twig_Node_Expression_Parent\compile(), Twig_Node_Expression_TempName\compile(), Twig_Node_Expression_Test_Constant\compile(), Twig_Node_Expression_Test_Divisibleby\compile(), Twig_Node_Expression_Test_Even\compile(), Twig_Node_Expression_Test_Null\compile(), Twig_Node_Expression_Test_Odd\compile(), Twig_Node_Expression_Test_Sameas\compile(), Twig_Node_Expression_Unary\compile(), Twig_Node_Import\compile(), Twig_Node_Include\compile(), Twig_Node_Macro\compile(), Twig_Node_Set\compile(), Twig_Node_Expression_Call\compileArguments(), Twig_Node_Expression_BlockReference\compileBlockArguments(), Twig_Node_Expression_Call\compileCallable(), compileDisplay(), Twig_Node_Module\compileGetParent(), Twig_Node_Expression_BlockReference\compileTemplateCall(), Twig_Node_Expression_Binary_Add\operator(), Twig_Node_Expression_Binary_And\operator(), Twig_Node_Expression_Binary_BitwiseAnd\operator(), Twig_Node_Expression_Binary_BitwiseOr\operator(), Twig_Node_Expression_Binary_BitwiseXor\operator(), Twig_Node_Expression_Binary_Concat\operator(), Twig_Node_Expression_Binary_Div\operator(), Twig_Node_Expression_Binary_EndsWith\operator(), Twig_Node_Expression_Binary_Equal\operator(), Twig_Node_Expression_Binary_FloorDiv\operator(), Twig_Node_Expression_Binary_Greater\operator(), Twig_Node_Expression_Binary_GreaterEqual\operator(), Twig_Node_Expression_Binary_In\operator(), Twig_Node_Expression_Binary_Less\operator(), Twig_Node_Expression_Binary_LessEqual\operator(), Twig_Node_Expression_Binary_Matches\operator(), Twig_Node_Expression_Binary_Mod\operator(), Twig_Node_Expression_Binary_Mul\operator(), Twig_Node_Expression_Binary_NotEqual\operator(), Twig_Node_Expression_Binary_NotIn\operator(), Twig_Node_Expression_Binary_Or\operator(), Twig_Node_Expression_Binary_Power\operator(), Twig_Node_Expression_Binary_Range\operator(), Twig_Node_Expression_Binary_StartsWith\operator(), Twig_Node_Expression_Binary_Sub\operator(), Twig_Node_Expression_Unary_Neg\operator(), Twig_Node_Expression_Unary_Not\operator(), Twig_Node_Expression_Unary_Pos\operator(), and repr().

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repr()

Twig_Compiler::repr

(

$value

)

Returns a PHP representation of a given value.

Parameters

mixed

$value

The value to convert

Returns

$this

Definition at line 171 of file Compiler.php.

    {
        if (is_int($value) || is_float($value)) {
            if (false !== $locale = setlocale(LC_NUMERIC, '0')) {
                setlocale(LC_NUMERIC, 'C');
            }
 
            $this->raw($value);
 
            if (false !== $locale) {
                setlocale(LC_NUMERIC, $locale);
            }
        } elseif (null === $value) {
            $this->raw('null');
        } elseif (is_bool($value)) {
            $this->raw($value ? 'true' : 'false');
        } elseif (is_array($value)) {
            $this->raw('array(');
            $first = true;
            foreach ($value as $key => $v) {
                if (!$first) {
                    $this->raw(', ');
                }
                $first = false;
                $this->repr($key);
                $this->raw(' => ');
                $this->repr($v);
            }
            $this->raw(')');
        } else {
            $this->string($value);
        }
 
        return $this;
    }

References $key, raw(), repr(), and string().

Referenced by Twig_Node_Expression_Constant\compile(), Twig_Node_Expression_Name\compile(), and repr().

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string()

Twig_Compiler::string

(

$value

)

Adds a quoted string to the compiled code.

Parameters

string

$value

The string

Returns

$this

Definition at line 157 of file Compiler.php.

    {
        $this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\"));
 
        return $this;
    }

References sprintf.

Referenced by Twig_Extensions_Node_Trans\compile(), Twig_Node_Expression_Call\compileArguments(), and repr().

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subcompile()

Twig_Compiler::subcompile	(	Twig_NodeInterface	$node,
			$raw = true
	)

Definition at line 94 of file Compiler.php.

    {
        if (false === $raw) {
            $this->source .= str_repeat(' ', $this->indentation * 4);
        }
 
        $node->compile($this);
 
        return $this;
    }

References Twig_NodeInterface\compile().

Referenced by Twig_Node_Include\addTemplateArguments(), Twig_Node_AutoEscape\compile(), Twig_Node_Block\compile(), Twig_Node_Expression_Array\compile(), Twig_Node_Expression_Filter_Default\compile(), Twig_Node_Expression_GetAttr\compile(), Twig_Node_Expression_MethodCall\compile(), Twig_Node_Expression_Test_Constant\compile(), Twig_Node_Expression_Test_Defined\compile(), Twig_Node_Expression_Unary\compile(), Twig_Node_If\compile(), Twig_Node_Module\compile(), Twig_Node_Set\compile(), Twig_Node_With\compile(), Twig_Node_Expression_Call\compileArguments(), compileClassFooter(), compileDisplay(), Twig_Node_Module\compileGetParent(), compileMacros(), and Twig_Node_Module\compileTemplate().

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write()

Twig_Compiler::write

(

)

Writes a string to the compiled code by adding indentation.

Returns

$this

Definition at line 124 of file Compiler.php.

    {
        $strings = func_get_args();
        foreach ($strings as $string) {
            $this->source .= str_repeat(' ', $this->indentation * 4).$string;
        }
 
        return $this;
    }

Referenced by addDebugInfo(), Twig_Node_Embed\addGetTemplate(), Twig_Node_Include\addGetTemplate(), Twig_Extensions_Node_Trans\compile(), Twig_Node_CheckSecurity\compile(), Twig_Node_For\compile(), Twig_Node_ForLoop\compile(), Twig_Node_If\compile(), Twig_Node_Include\compile(), Twig_Node_Macro\compile(), Twig_Node_Set\compile(), Twig_Node_With\compile(), Twig_Profiler_Node_EnterProfile\compile(), Twig_Profiler_Node_LeaveProfile\compile(), Twig_Node_Module\compileClassHeader(), Twig_Node_Module\compileConstructor(), compileDebugInfo(), compileDisplay(), Twig_Node_Module\compileGetParent(), compileGetSource(), compileGetSourceContext(), compileGetTemplateName(), compileIsTraitable(), compileLoadTemplate(), Twig_Node_Module\compileTemplate(), and Twig_Node_Expression_BlockReference\compileTemplateCall().

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Field Documentation

$debugInfo

Twig_Compiler::$debugInfo = array()

protected

Definition at line 24 of file Compiler.php.

Referenced by getDebugInfo().

$env

Twig_Compiler::$env

protected

Definition at line 23 of file Compiler.php.

Referenced by __construct(), and getEnvironment().

$filename

Twig_Compiler::$filename

protected

Definition at line 27 of file Compiler.php.

Referenced by getFilename().

$indentation

Twig_Compiler::$indentation

protected

Definition at line 22 of file Compiler.php.

Referenced by compile().

$lastLine

Twig_Compiler::$lastLine

protected

Definition at line 20 of file Compiler.php.

$source

Twig_Compiler::$source

protected

Definition at line 21 of file Compiler.php.

Referenced by getSource().

$sourceLine

Twig_Compiler::$sourceLine

protected

Definition at line 26 of file Compiler.php.

Referenced by addDebugInfo().

$sourceOffset

Twig_Compiler::$sourceOffset

protected

Definition at line 25 of file Compiler.php.

$varNameSalt

Twig_Compiler::$varNameSalt = 0

private

Definition at line 28 of file Compiler.php.

---

The documentation for this class was generated from the following file:

• libs/composer/vendor/twig/twig/lib/Twig/Compiler.php