YourWishes/jerryscript
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Support parsing async modifiers for functions. (#3460)

Browse Source 
Only parsing is implemented, so the async functions currently behave
like normal function except they return with a resolved Promise object
when the function is terminated correctly.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-12-20 09:55:41 +01:00
committed by GitHub
parent 2a29b72a83
commit 8cb2be6001
22 changed files with 873 additions and 234 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/parser/js/js-scanner-internal.h
+9 -3
View File
@@ -27,7 +27,7 @@
*/
/**
* Scan mode types types.
* Scan mode types.
*/
typedef enum
{
@@ -50,7 +50,7 @@ typedef enum
} scan_modes_t;
/**
* Scan stack mode types types.
* Scan stack mode types.
*/
typedef enum
{
@@ -108,6 +108,7 @@ typedef enum
SCAN_STACK_CLASS_EXPRESSION, /**< class expression */
SCAN_STACK_CLASS_EXTENDS, /**< class extends expression */
SCAN_STACK_FUNCTION_PARAMETERS, /**< function parameter initializer */
SCAN_STACK_USE_ASYNC, /**< an "async" identifier is used */
#endif /* ENABLED (JERRY_ES2015) */
} scan_stack_modes_t;
@@ -272,7 +273,9 @@ typedef enum
SCANNER_LITERAL_POOL_IN_EXPORT = (1 << 8), /**< the declared variables are exported by the module system */
#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
#if ENABLED (JERRY_ES2015)
SCANNER_LITERAL_POOL_GENERATOR = (1 << 9), /**< generator function */
SCANNER_LITERAL_POOL_FUNCTION_STATEMENT = (1 << 9), /**< function statement (only if async is set) */
SCANNER_LITERAL_POOL_GENERATOR = (1 << 10), /**< generator function */
SCANNER_LITERAL_POOL_ASYNC = (1 << 11), /**< async function */
#endif /* ENABLED (JERRY_ES2015) */
} scanner_literal_pool_flags_t;
@@ -311,6 +314,9 @@ struct scanner_context_t
scanner_literal_pool_t *active_literal_pool_p; /**< currently active literal pool */
scanner_switch_statement_t active_switch_statement; /**< currently active switch statement */
scanner_info_t *end_arguments_p; /**< position of end arguments */
#if ENABLED (JERRY_ES2015)
const uint8_t *async_source_p; /**< source position for async functions */
#endif /* ENABLED (JERRY_ES2015) */
};
void scanner_raise_error (parser_context_t *context_p);