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Fixing break / continue, nested into 'try', 'with' blocks.

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Related issue: #128

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-06-02 17:06:43 +03:00
parent 8433df3097
commit ac87616f05
13 changed files with 440 additions and 146 deletions
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jerry-core/ecma/base/ecma-helpers-value.cpp
+55 -69
View File
@@ -462,18 +462,17 @@ ecma_get_completion_value_value_field (ecma_completion_value_t completion_value)
} /* ecma_get_completion_value_value_field */
/**
* Get pointer to label descriptor from completion value
* Get target of break / continue completion value
*
* @return pointer to label descriptor
* @return opcode counter
*/
static ecma_label_descriptor_t* __attr_const___
ecma_get_completion_value_label_descriptor (ecma_completion_value_t completion_value) /**< completion value */
static opcode_counter_t
ecma_get_completion_value_target (ecma_completion_value_t completion_value) /**< completion value */
{
return ECMA_GET_NON_NULL_POINTER (ecma_label_descriptor_t,
(uintptr_t) jrt_extract_bit_field (completion_value,
ECMA_COMPLETION_VALUE_LABEL_DESC_CP_POS,
ECMA_COMPLETION_VALUE_LABEL_DESC_CP_WIDTH));
} /* ecma_get_completion_value_label_descriptor */
return (opcode_counter_t) jrt_extract_bit_field (completion_value,
ECMA_COMPLETION_VALUE_TARGET_POS,
ECMA_COMPLETION_VALUE_TARGET_WIDTH);
} /* ecma_get_completion_value_target */
/**
* Set type field of completion value
@@ -508,24 +507,20 @@ ecma_set_completion_value_value_field (ecma_completion_value_t completion_value,
} /* ecma_set_completion_value_value_field */
/**
* Set label descriptor of completion value
* Set target of break / continue completion value
*
* @return completion value with updated field
*/
static ecma_completion_value_t __attr_const___
ecma_set_completion_value_label_descriptor (ecma_completion_value_t completion_value, /**< completion value
* to set field in */
ecma_label_descriptor_t* label_desc_p) /**< pointer to the
* label descriptor */
ecma_set_completion_value_target (ecma_completion_value_t completion_value, /**< completion value
* to set field in */
opcode_counter_t target) /**< break / continue target */
{
uintptr_t label_desc_cp;
ECMA_SET_NON_NULL_POINTER (label_desc_cp, label_desc_p);
return (ecma_completion_value_t) jrt_set_bit_field_value (completion_value,
label_desc_cp,
ECMA_COMPLETION_VALUE_LABEL_DESC_CP_POS,
ECMA_COMPLETION_VALUE_LABEL_DESC_CP_WIDTH);
} /* ecma_set_completion_value_label_descriptor */
target,
ECMA_COMPLETION_VALUE_TARGET_POS,
ECMA_COMPLETION_VALUE_TARGET_WIDTH);
} /* ecma_set_completion_value_target */
/**
* Normal, throw, return, exit and meta completion values constructor
@@ -555,34 +550,6 @@ ecma_make_completion_value (ecma_completion_type_t type, /**< type */
return completion_value;
} /* ecma_make_completion_value */
/**
* Break and continue completion values constructor
*
* @return completion value
*/
ecma_completion_value_t __attr_const___
ecma_make_label_completion_value (ecma_completion_type_t type, /**< type */
uint8_t depth_level, /**< depth level (in try constructions,
with blocks, etc.) */
uint16_t offset) /**< offset to label from end of last block */
{
JERRY_ASSERT (type == ECMA_COMPLETION_TYPE_BREAK
|| type == ECMA_COMPLETION_TYPE_CONTINUE);
ecma_label_descriptor_t *label_desc_p = ecma_alloc_label_descriptor ();
label_desc_p->offset = offset;
label_desc_p->depth = depth_level;
ecma_completion_value_t completion_value = 0;
completion_value = ecma_set_completion_value_type_field (completion_value,
type);
completion_value = ecma_set_completion_value_label_descriptor (completion_value,
label_desc_p);
return completion_value;
} /* ecma_make_label_completion_value */
/**
* Simple normal completion value constructor
*
@@ -688,6 +655,24 @@ ecma_make_meta_completion_value (void)
ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY));
} /* ecma_make_meta_completion_value */
/**
* Break / continue completion values constructor
*
* @return completion value
*/
ecma_completion_value_t __attr_const___
ecma_make_jump_completion_value (opcode_counter_t target) /**< target break / continue */
{
ecma_completion_value_t completion_value = 0;
completion_value = ecma_set_completion_value_type_field (completion_value,
ECMA_COMPLETION_TYPE_JUMP);
completion_value = ecma_set_completion_value_target (completion_value,
target);
return completion_value;
} /* ecma_make_jump_completion_value */
/**
* Get ecma-value from specified completion value
*
@@ -741,6 +726,20 @@ ecma_get_object_from_completion_value (ecma_completion_value_t completion_value)
return ecma_get_object_from_value (ecma_get_completion_value_value (completion_value));
} /* ecma_get_object_from_completion_value */
/**
* Get break / continue target from completion value
*
* @return opcode counter
*/
opcode_counter_t
ecma_get_jump_target_from_completion_value (ecma_completion_value_t completion_value) /**< completion
* value */
{
JERRY_ASSERT (ecma_get_completion_value_type_field (completion_value) == ECMA_COMPLETION_TYPE_JUMP);
return ecma_get_completion_value_target (completion_value);
} /* ecma_get_jump_target_from_completion_value */
/**
* Copy ecma-completion value.
*
@@ -753,6 +752,7 @@ ecma_copy_completion_value (ecma_completion_value_t value) /**< completion value
const bool is_type_ok = (type == ECMA_COMPLETION_TYPE_NORMAL
|| type == ECMA_COMPLETION_TYPE_THROW
|| type == ECMA_COMPLETION_TYPE_RETURN
|| type == ECMA_COMPLETION_TYPE_JUMP
|| type == ECMA_COMPLETION_TYPE_EXIT);
JERRY_ASSERT (is_type_ok);
@@ -784,10 +784,8 @@ ecma_free_completion_value (ecma_completion_value_t completion_value) /**< compl
JERRY_ASSERT (ecma_get_value_type_field (v) == ECMA_TYPE_SIMPLE);
break;
}
case ECMA_COMPLETION_TYPE_CONTINUE:
case ECMA_COMPLETION_TYPE_BREAK:
case ECMA_COMPLETION_TYPE_JUMP:
{
ecma_dealloc_label_descriptor (ecma_get_completion_value_label_descriptor (completion_value));
break;
}
case ECMA_COMPLETION_TYPE_META:
@@ -876,28 +874,16 @@ ecma_is_completion_value_meta (ecma_completion_value_t value) /**< completion va
} /* ecma_is_completion_value_meta */
/**
* Check if the completion value is break value.
* Check if the completion value is break / continue value.
*
* @return true - if the completion type is break,
* @return true - if the completion type is break / continue,
* false - otherwise.
*/
bool __attr_const___ __attr_always_inline___
ecma_is_completion_value_break (ecma_completion_value_t value) /**< completion value */
ecma_is_completion_value_jump (ecma_completion_value_t value) /**< completion value */
{
return (ecma_get_completion_value_type_field (value) == ECMA_COMPLETION_TYPE_BREAK);
} /* ecma_is_completion_value_break */
/**
* Check if the completion value is continue value.
*
* @return true - if the completion type is continue,
* false - otherwise.
*/
bool __attr_const___ __attr_always_inline___
ecma_is_completion_value_continue (ecma_completion_value_t value) /**< completion value */
{
return (ecma_get_completion_value_type_field (value) == ECMA_COMPLETION_TYPE_CONTINUE);
} /* ecma_is_completion_value_continue */
return (ecma_get_completion_value_type_field (value) == ECMA_COMPLETION_TYPE_JUMP);
} /* ecma_is_completion_value_jump */
/**
* Check if the completion value is specified normal simple value.