Oolite 1.91.0.7644-241112-7f5034b
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OOJSFunction Class Reference

#include <OOJSFunction.h>

+ Inheritance diagram for OOJSFunction:
+ Collaboration diagram for OOJSFunction:

Instance Methods

(id) - initWithFunction:context:
 
(id) - initWithName:scope:code:argumentCount:argumentNames:fileName:lineNumber:context:
 
(NSString *) - name
 
(JSFunction *) - function
 
(jsval) - functionValue
 
(BOOL) - evaluateWithContext:scope:argc:argv:result:
 
(id) - evaluateWithContext:scope:arguments:
 
(BOOL) - evaluatePredicateWithContext:scope:arguments:
 
(void) - deleteJSValue [implementation]
 
(void) - dealloc [implementation]
 
(NSString *) - descriptionComponents [implementation]
 
(BOOL) - evaluateWithContext:scope:arguments:result: [implementation]
 

Private Attributes

JSFunction * _function
 
NSString * _name
 

Detailed Description

Definition at line 33 of file OOJSFunction.h.

Method Documentation

◆ dealloc

- (void) dealloc
implementation

Definition at line 1 of file OOJSFunction.m.

137{
138 [self deleteJSValue];
139 DESTROY(_name);
140
141 [super dealloc];
142}
#define DESTROY(x)
Definition OOCocoa.h:77
NSString * _name

References _function, _name, nil, OOJSAddGCObjectRoot, and OOJavaScriptEngine::sharedEngine.

+ Here is the call graph for this function:

◆ deleteJSValue

- (void) deleteJSValue
implementation

Definition at line 1 of file OOJSFunction.m.

121{
122 if (_function != NULL)
123 {
124 JSContext *context = OOJSAcquireContext();
125 JS_RemoveObjectRoot(context, (JSObject **)&_function);
126 OOJSRelinquishContext(context);
127
128 _function = NULL;
129 [[NSNotificationCenter defaultCenter] removeObserver:self
130 name:kOOJavaScriptEngineWillResetNotification
132 }
133}
OOINLINE JSContext * OOJSAcquireContext(void)
OOINLINE void OOJSRelinquishContext(JSContext *context)
JSFunction * _function
OOJavaScriptEngine * sharedEngine()

◆ descriptionComponents

- (NSString *) descriptionComponents
implementation

Definition at line 1 of file OOJSFunction.m.

146{
147 NSString *name = [self name];
148 if (name == nil) name = @"<anonymous>";
149 return [NSString stringWithFormat:@"%@()", name];
150}
return nil
NSString * name()

◆ evaluatePredicateWithContext:scope:arguments:

- (BOOL) evaluatePredicateWithContext: (JSContext *) context
scope: (id) jsThis
arguments: (NSArray *) arguments 

Definition at line 1 of file OOJSFunction.m.

243 :(JSContext *)context
244 scope:(id)jsThis
245 arguments:(NSArray *)arguments
246{
247 jsval result;
248 BOOL OK = [self evaluateWithContext:context
249 scope:jsThis
250 arguments:arguments
251 result:&result];
252 JSBool retval = NO;
253 if (OK) OK = JS_ValueToBoolean(context, result, &retval);
254 return OK && retval;
255}

◆ evaluateWithContext:scope:argc:argv:result:

- (BOOL) evaluateWithContext: (JSContext *) context
scope: (JSObject *) jsThis
argc: (uintN) argc
argv: (jsval *) argv
result: (jsval *) result 

Definition at line 1 of file OOJSFunction.m.

179 :(JSContext *)context
180 scope:(JSObject *)jsThis
181 argc:(uintN)argc
182 argv:(jsval *)argv
183 result:(jsval *)result
184{
187 BOOL OK = JS_CallFunction(context, jsThis, _function, argc, argv, result);
189 [OOJSScript popScript:nil];
190
191 return OK;
192}
#define OOJSStopTimeLimiter()
#define OOJSStartTimeLimiter()
void pushScript:(OOJSScript *script)
Definition OOJSScript.m:537
void popScript:(OOJSScript *script)
Definition OOJSScript.m:550

◆ evaluateWithContext:scope:arguments:

- (id) evaluateWithContext: (JSContext *) context
scope: (id) jsThis
arguments: (NSArray *) arguments 

Definition at line 1 of file OOJSFunction.m.

228 :(JSContext *)context
229 scope:(id)jsThis
230 arguments:(NSArray *)arguments
231{
232 jsval result;
233 BOOL OK = [self evaluateWithContext:context
234 scope:jsThis
235 arguments:arguments
236 result:&result];
237 if (!OK) return nil;
238
239 return OOJSNativeObjectFromJSValue(context, result);
240}
id OOJSNativeObjectFromJSValue(JSContext *context, jsval value)

◆ evaluateWithContext:scope:arguments:result:

- (BOOL) evaluateWithContext: (JSContext *) context
scope: (id) jsThis
arguments: (NSArray *) arguments
result: (jsval *) result 
implementation

Definition at line 1 of file OOJSFunction.m.

195 :(JSContext *)context
196 scope:(id)jsThis
197 arguments:(NSArray *)arguments
198 result:(jsval *)result
199{
200 NSUInteger i, argc = [arguments count];
201 assert(argc < UINT32_MAX);
202 jsval argv[argc];
203
204 for (i = 0; i < argc; i++)
205 {
206 argv[i] = [[arguments objectAtIndex:i] oo_jsValueInContext:context];
207 OOJSAddGCValueRoot(context, &argv[i], "OOJSFunction argv");
208 }
209
210 JSObject *scopeObj = NULL;
211 BOOL OK = YES;
212 if (jsThis != nil) OK = JS_ValueToObject(context, [jsThis oo_jsValueInContext:context], &scopeObj);
213 if (OK) OK = [self evaluateWithContext:context
214 scope:scopeObj
215 argc:(uint32_t)argc
216 argv:argv
217 result:result];
218
219 for (i = 0; i < argc; i++)
220 {
221 JS_RemoveValueRoot(context, &argv[i]);
222 }
223
224 return OK;
225}
#define OOJSAddGCValueRoot(context, root, name)

◆ function

- (JSFunction *) function

Definition at line 1 of file OOJSFunction.m.

160{
161 return _function;
162}

◆ functionValue

- (jsval) functionValue

Definition at line 1 of file OOJSFunction.m.

166{
167 if (EXPECT(_function != NULL))
168 {
169 return OBJECT_TO_JSVAL(JS_GetFunctionObject(_function));
170 }
171 else
172 {
173 return JSVAL_NULL;
174 }
175
176}
#define EXPECT(x)

◆ initWithFunction:context:

- (id) initWithFunction: (JSFunction *) function
context: (JSContext *) context 

Definition at line 1 of file OOJSFunction.m.

33 :(JSFunction *)function context:(JSContext *)context
34{
35 NSParameterAssert(context != NULL);
36
37 if (function == NULL)
38 {
39 [self release];
40 return nil;
41 }
42
43 if ((self = [super init]))
44 {
45 _function = function;
46 OOJSAddGCObjectRoot(context, (JSObject **)&_function, "OOJSFunction._function");
47 _name = [OOStringFromJSString(context, JS_GetFunctionId(function)) retain];
48
49 [[NSNotificationCenter defaultCenter] addObserver:self
50 selector:@selector(deleteJSValue)
51 name:kOOJavaScriptEngineWillResetNotification
53 }
54
55 return self;
56}
#define OOJSAddGCObjectRoot(context, root, name)

◆ initWithName:scope:code:argumentCount:argumentNames:fileName:lineNumber:context:

- (id) initWithName: (NSString *) name
scope: (JSObject *) scope
code: (NSString *) code
argumentCount: (NSUInteger) argCount
argumentNames: (const char **) argNames
fileName: (NSString *) fileName
lineNumber: (NSUInteger) lineNumber
context: (JSContext *) context 

Definition at line 1 of file OOJSFunction.m.

59 :(NSString *)name
60 scope:(JSObject *)scope
61 code:(NSString *)code
62 argumentCount:(NSUInteger)argCount
63 argumentNames:(const char **)argNames
64 fileName:(NSString *)fileName
65 lineNumber:(NSUInteger)lineNumber
66 context:(JSContext *)context
67{
68 BOOL OK = YES;
69 BOOL releaseContext = NO;
70 jschar *buffer = NULL;
71 size_t length = 0;
72 JSFunction *function;
73
74 if (context == NULL)
75 {
76 context = OOJSAcquireContext();
77 releaseContext = YES;
78 }
79 if (scope == NULL) scope = [[OOJavaScriptEngine sharedEngine] globalObject];
80
81 if (code == nil || (argCount > 0 && argNames == NULL)) OK = NO;
82
83 if (OK)
84 {
85 // jschar and unichar are both defined to be 16-bit elements.
86 assert(sizeof(jschar) == sizeof(unichar));
87
88 length = [code length];
89 buffer = malloc(sizeof(jschar) * length);
90 if (buffer == NULL) OK = NO;
91 }
92
93 if (OK)
94 {
95 assert(argCount < UINT32_MAX);
96
97 [code getCharacters:buffer];
98
99 function = JS_CompileUCFunction(context, scope, [name UTF8String], (uint32_t)argCount, argNames, buffer, length, [fileName UTF8String], (uint32_t)lineNumber);
100 if (function == NULL) OK = NO;
101
102 free(buffer);
103 }
104
105 if (OK)
106 {
107 self = [self initWithFunction:function context:context];
108 }
109 else
110 {
111 DESTROY(self);
112 }
113
114 if (releaseContext) OOJSRelinquishContext(context);
115
116 return self;
117}

◆ name

- (NSString *) name

Definition at line 1 of file OOJSFunction.m.

154{
155 return _name;
156}

Member Data Documentation

◆ _function

- (JSFunction*) _function
private

Definition at line 36 of file OOJSFunction.h.

Referenced by dealloc.

◆ _name

- (NSString*) _name
private

Definition at line 37 of file OOJSFunction.h.

Referenced by dealloc.


The documentation for this class was generated from the following files: