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Implement ES2015 class feature (part II.) (#2439)

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This patch is the second milestone of the implementation of this new language element.

Supported:
 - Single class inheritance
 - Functionality of 'super' keyword
 - Implicit constructor in class heritage
 - Specific behaviour while extending with the built-in 'Array' or '%TypedArray%' object
 - Abstract subclasses (Mix-ins)

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2018-10-25 16:00:48 +02:00
committed by Akos Kiss
parent e0e6363f85
commit d1860d0e34
54 changed files with 2543 additions and 199 deletions
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jerry-core/parser/js/js-lexer.h
+33 -3
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@@ -151,29 +151,59 @@ typedef enum
LEXER_SCAN_SWITCH, /**< special value for switch pre-scan */
LEXER_CLASS_CONSTRUCTOR, /**< special value for class constructor method */
#ifdef CONFIG_DISABLE_ES2015
/* Future reserved words: these keywords
* must form a group after all other keywords. */
#define LEXER_FIRST_FUTURE_RESERVED_WORD LEXER_KEYW_CLASS
#endif /* CONFIG_DISABLE_ES2015 */
LEXER_KEYW_CLASS, /**< class */
LEXER_KEYW_ENUM, /**< enum */
LEXER_KEYW_EXTENDS, /**< extends */
LEXER_KEYW_SUPER, /**< super */
LEXER_KEYW_CONST, /**< const */
LEXER_KEYW_EXPORT, /**< export */
LEXER_KEYW_IMPORT, /**< import */
#ifndef CONFIG_DISABLE_ES2015
/* Future reserved words: these keywords
* must form a group after all other keywords.
* Note:
* Tokens from LEXER_KEYW_CLASS to LEXER_KEYW_IMPORT
* are no longer future reserved words in ES2015. */
#define LEXER_FIRST_FUTURE_RESERVED_WORD LEXER_KEYW_ENUM
#endif /* !CONFIG_DISABLE_ES2015 */
LEXER_KEYW_ENUM, /**< enum */
#ifndef CONFIG_DISABLE_ES2015
LEXER_KEYW_AWAIT, /**< await */
#endif /* !CONFIG_DISABLE_ES2015 */
/* Future strict reserved words: these keywords
* must form a group after future reserved words. */
#define LEXER_FIRST_FUTURE_STRICT_RESERVED_WORD LEXER_KEYW_IMPLEMENTS
LEXER_KEYW_IMPLEMENTS, /**< implements */
LEXER_KEYW_LET, /**< let */
LEXER_KEYW_PRIVATE, /**< private */
LEXER_KEYW_PUBLIC, /**< public */
LEXER_KEYW_YIELD, /**< yield */
LEXER_KEYW_INTERFACE, /**< interface */
LEXER_KEYW_PACKAGE, /**< package */
LEXER_KEYW_PROTECTED, /**< protected */
#ifndef CONFIG_DISABLE_ES2015
/* Context dependent strict reserved words:
* See also: ECMA-262 v6, 11.6.2.1 */
#define LEXER_FIRST_CONTEXT_DEPENDENT_RESERVED_WORD LEXER_KEYW_STATIC
LEXER_KEYW_STATIC, /**< static */
#else /* CONFIG_DISABLE_ES2015 */
/* Context dependent strict reserved words:
* See also: ECMA-262 v6, 11.6.2.1 */
#define LEXER_FIRST_CONTEXT_DEPENDENT_RESERVED_WORD
#endif /* !CONFIG_DISABLE_ES2015 */
/* Context dependent future strict reserved words:
* See also: ECMA-262 v6, 11.6.2.1 */
#define LEXER_FIRST_CONTEXT_DEPENDENT_FUTURE_RESERVED_WORD LEXER_KEYW_LET
LEXER_KEYW_LET, /**< let */
LEXER_KEYW_YIELD, /**< yield */
#ifdef CONFIG_DISABLE_ES2015
LEXER_KEYW_STATIC, /**< static */
#endif /* CONFIG_DISABLE_ES2015 */
} lexer_token_type_t;
#define LEXER_NEWLINE_LS_PS_BYTE_1 0xe2