Mercurial > jdk8-mips64-public > nashorn / file comparison
comparison: src/jdk/nashorn/internal/ir/FunctionNode.java
src/jdk/nashorn/internal/ir/FunctionNode.java
- changeset 769
- 5a1ae83c295f
- parent 761
- 37bf1b9838b5
- child 952
- 6d5471a497fb
- child 962
- ac62e33a99b0
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| 768:27d6e99ae970 | 769:5a1ae83c295f |
|---|---|
| 162 /** Does the function call eval? If it does, then all variables in this function might be get/set by it and it can | 162 /** Does the function call eval? If it does, then all variables in this function might be get/set by it and it can |
| 163 * introduce new variables into this function's scope too.*/ | 163 * introduce new variables into this function's scope too.*/ |
| 164 public static final int HAS_EVAL = 1 << 5; | 164 public static final int HAS_EVAL = 1 << 5; |
| 165 | 165 |
| 166 /** Does a nested function contain eval? If it does, then all variables in this function might be get/set by it. */ | 166 /** Does a nested function contain eval? If it does, then all variables in this function might be get/set by it. */ |
| 167 public static final int HAS_NESTED_EVAL = 1 << 6; | 167 public static final int HAS_NESTED_EVAL = 1 << 6; |
| 168 | 168 |
| 169 /** Does this function have any blocks that create a scope? This is used to determine if the function needs to | 169 /** Does this function have any blocks that create a scope? This is used to determine if the function needs to |
| 170 * have a local variable slot for the scope symbol. */ | 170 * have a local variable slot for the scope symbol. */ |
| 171 public static final int HAS_SCOPE_BLOCK = 1 << 7; | 171 public static final int HAS_SCOPE_BLOCK = 1 << 7; |
| 172 | 172 |
| 173 /** | 173 /** |
| 174 * Flag this function as one that defines the identifier "arguments" as a function parameter or nested function | 174 * Flag this function as one that defines the identifier "arguments" as a function parameter or nested function |
| 175 * name. This precludes it from needing to have an Arguments object defined as "arguments" local variable. Note that | 175 * name. This precludes it from needing to have an Arguments object defined as "arguments" local variable. Note that |
| 176 * defining a local variable named "arguments" still requires construction of the Arguments object (see | 176 * defining a local variable named "arguments" still requires construction of the Arguments object (see |
| 194 /** Does this function have nested declarations? */ | 194 /** Does this function have nested declarations? */ |
| 195 public static final int HAS_FUNCTION_DECLARATIONS = 1 << 13; | 195 public static final int HAS_FUNCTION_DECLARATIONS = 1 << 13; |
| 196 | 196 |
| 197 /** Can this function be specialized? */ | 197 /** Can this function be specialized? */ |
| 198 public static final int CAN_SPECIALIZE = 1 << 14; | 198 public static final int CAN_SPECIALIZE = 1 << 14; |
| 199 | |
| 200 /** Does this function use the "this" keyword? */ | |
| 201 public static final int USES_THIS = 1 << 15; | |
| 199 | 202 |
| 200 /** Does this function or any nested functions contain an eval? */ | 203 /** Does this function or any nested functions contain an eval? */ |
| 201 private static final int HAS_DEEP_EVAL = HAS_EVAL | HAS_NESTED_EVAL; | 204 private static final int HAS_DEEP_EVAL = HAS_EVAL | HAS_NESTED_EVAL; |
| 202 | 205 |
| 203 /** Does this function need to store all its variables in scope? */ | 206 /** Does this function need to store all its variables in scope? */ |
| 589 public boolean needsCallee() { | 592 public boolean needsCallee() { |
| 590 return needsParentScope() || needsSelfSymbol() || isSplit() || (needsArguments() && !isStrict()); | 593 return needsParentScope() || needsSelfSymbol() || isSplit() || (needsArguments() && !isStrict()); |
| 591 } | 594 } |
| 592 | 595 |
| 593 /** | 596 /** |
| 597 * Return {@code true} if this function makes use of the {@code this} object. | |
| 598 * | |
| 599 * @return true if function uses {@code this} object | |
| 600 */ | |
| 601 public boolean usesThis() { | |
| 602 return getFlag(USES_THIS); | |
| 603 } | |
| 604 | |
| 605 /** | |
| 594 * Get the identifier for this function, this is its symbol. | 606 * Get the identifier for this function, this is its symbol. |
| 595 * @return the identifier as an IdentityNode | 607 * @return the identifier as an IdentityNode |
| 596 */ | 608 */ |
| 597 public IdentNode getIdent() { | 609 public IdentNode getIdent() { |
| 598 return ident; | 610 return ident; |
