rfc:typehint

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rfc:typehint [2008/04/09 11:37]
felipe Restructure
rfc:typehint [2017/09/22 13:28] (current)
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   * Date: 2008-04-07   * Date: 2008-04-07
   * Author: Felipe Pena <felipensp@gmail.com>   * Author: Felipe Pena <felipensp@gmail.com>
-  * Status: Under Discussion+  * Status: [[http://news.php.net/php.internals/37049|Under Discussion]] 
 + 
 + 
 +====== Details of implementation ====== 
 +**Parameter type hint:** 
 +  - The behavior when the default parameter value is ''NULL'' was kept. 
 +**Both:** 
 +  - Binary and unicode string are specified by ''string''.
  
 ===== Return value type hint ===== ===== Return value type hint =====
  
 ==== BC Break ==== ==== BC Break ====
- 
 No BC break using the "(type)" syntax. (Inspirated by Objective-C) No BC break using the "(type)" syntax. (Inspirated by Objective-C)
 +
  
 ==== Examples ==== ==== Examples ====
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 } }
  
-test('1337'); +test('1337'); // Catchable fatal error: The returned value must be of the type integer
-test(-1); +
-test(1); +
-test(1.); // Catchable fatal error: The returned value must be of the type integer+
 </code> </code>
  
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   - T_RESOURCE (Keyword: resource)   - T_RESOURCE (Keyword: resource)
   - T_STR (Keyword: string)   - T_STR (Keyword: string)
 +
 +==== Other changes ====
 +  - Removed ZEND_ARG_ARRAY_INFO()
 +  - Added ZEND_ARG_PHP_TYPE_INFO()
 +<code diff u>
 +-#define ZEND_ARG_ARRAY_INFO(pass_by_ref, name, allow_null) { {#name}, sizeof(#name)-1, {NULL}, 0, 1, allow_null, pass_by_ref, 0, 0 },
 ++#define ZEND_ARG_PHP_TYPE_INFO(pass_by_ref, name, php_type, allow_null) { {#name}, sizeof(#name)-1, {NULL}, 0, php_type, allow_null, pass_by_ref, 0, 0 },
 +</code>
 +  - **Reflection**: ReflectionParameter class:
 +    - Added:
 +      - isInt()
 +      - isDouble()
 +      - isBool()
 +      - isString()
 +      - isObject()
 +      - isResource()
 +
 +
  
 ==== Examples ==== ==== Examples ====
 +
 +=== With default parameter value ===
 +<code php>
 +function test(integer $value = '1') {
 +}
 +// Fatal error: Default value for parameters with integer type hint can only be the exact type or NULL
 +</code>
  
 === integer / int === === integer / int ===
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 test(1); test(1);
-test("1337"); 
 test(-1); test(-1);
-test("1."); // Catchable fatal error: Argument 1 passed to test() must be an integer, string given +test("1.");  
- +// Catchable fatal error: Argument 1 passed to test() must be of the type integer, string given ...
-function test(integer $value = '1') { +
-+
-// Fatal error: Default value for parameters with integer type hint can only be the exact type or NULL+
 </code> </code>
  
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 test(1.1); test(1.1);
 test(.1); test(.1);
-test("1."); +test("1."); // Catchable fatal error: Argument 1 passed to test() must be of the type double, string given
-test("1337"); // Catchable fatal error: Argument 1 passed to test() must be an double, string given +
- +
-function test(double $value = '1') { +
-+
-// Fatal error: Default value for parameters with double type hint can only be the exact type or NULL+
 </code> </code>
  
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 test(false); test(false);
-test(0); +test(0); // Catchable fatal error: Argument 1 passed to test() must be of the type boolean, null given
-test(1); +
-test('0'); +
-test('1'); +
-test(''); +
-test(null); // Catchable fatal error: Argument 1 passed to test() must be an boolean, null given+
 </code> </code>
  
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 test(fopen(__FILE__, 'r')); test(fopen(__FILE__, 'r'));
-test(NULL); // Catchable fatal error: Argument 1 passed to test() must be an resource, null given+test(NULL); // Catchable fatal error: Argument 1 passed to test() must be of the type resource, null given
 </code> </code>
  
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 test(new stdclass); test(new stdclass);
-test(NULL); // Catchable fatal error: Argument 1 passed to test() must be an object, null given +test(NULL); // Catchable fatal error: Argument 1 passed to test() must be of the type object, null given
- +
-function test(object $value = 1) { +
-+
-// Fatal error: Default value for parameters with object type hint can only be the exact type or NULL+
 </code> </code>
  
  
  
-===== Patches =====+===== Patches & tests =====
  
-  - Return value type hint: http://felipe.ath.cx/diff/return_type_hint.diff (under construction) +  - Return value type hint: http://felipe.ath.cx/diff/return_type_hint.diff 
-  - Parameter type hint: http://felipe.ath.cx/diff/param_type_hint.diff (under construction)+  - Parameter type hint: http://felipe.ath.cx/diff/param_type_hint.diff 
 +  - Tests: http://felipe.ath.cx/diff/tests/
  
rfc/typehint.1207741030.txt.gz · Last modified: 2017/09/22 13:28 (external edit)