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Update comments in ctypes.jsm to point at MDC docs. No bug, r=aidan
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@ -38,80 +38,16 @@
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let EXPORTED_SYMBOLS = [ "ctypes" ];
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let EXPORTED_SYMBOLS = [ "ctypes" ];
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/**
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/*
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* This is the js module for ctypes. Import it like so:
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* This is the js module for ctypes. Import it like so:
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* Components.utils.import("resource://gre/modules/ctypes.jsm");
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* Components.utils.import("resource://gre/modules/ctypes.jsm");
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*
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*
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* This will create a 'ctypes' object, which provides an interface to describe
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* This will create a 'ctypes' object, which provides an interface to describe
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* C types and call C functions from a dynamic library. It has the following
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* and instantiate C types and call C functions from a dynamic library.
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* properties and functions:
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*
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*
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* ABI constants that specify the calling convention to use.
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* For documentation on the API, see:
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* ctypes.default_abi corresponds to the cdecl convention, and in almost all
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* https://developer.mozilla.org/en/js-ctypes/js-ctypes_reference
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* cases is the correct choice. ctypes.stdcall is provided for calling
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* functions in the Microsoft Win32 API.
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*
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*
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* ctypes.default_abi // corresponds to cdecl
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* ctypes.stdcall_abi // for calling Win32 API functions
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*
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* Types available for arguments and return values, representing
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* their C counterparts.
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*
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* ctypes.void_t // Only allowed for return types.
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* ctypes.bool // _Bool type (assumed 8 bits wide).
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* ctypes.int8_t // int8_t (signed char) type.
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* ctypes.int16_t // int16_t (short) type.
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* ctypes.int32_t // int32_t (int) type.
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* ctypes.int64_t // int64_t (long long) type.
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* ctypes.uint8_t // uint8_t (unsigned char) type.
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* ctypes.uint16_t // uint16_t (unsigned short) type.
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* ctypes.uint32_t // uint32_t (unsigned int) type.
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* ctypes.uint64_t // uint64_t (unsigned long long) type.
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* ctypes.float // float type.
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* ctypes.double // double type.
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* ctypes.string // C string (char *).
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* ctypes.ustring // 16-bit string (char16_t *).
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*
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* Library ctypes.open(name)
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*
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* Attempts to dynamically load the specified library. Returns a Library
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* object on success.
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* @name A string or nsILocalFile representing the name and path of
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* the library to open.
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* @returns A Library object.
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*
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* Library.close()
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*
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* Unloads the currently loaded library. Any subsequent attempts to call
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* functions on this interface will fail.
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*
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* function Library.declare(name, abi, returnType, argType1, argType2, ...)
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*
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* Declares a C function in a library.
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* @name Function name. This must be a valid symbol in the library.
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* @abi The calling convention to use. Must be an ABI constant
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* from ctypes.
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* @returnType The return type of the function. Must be a type constant
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* from ctypes.
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* @argTypes Argument types. Must be a type constant (other than void_t)
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* from ctypes, or the literal string "..." to denote a
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* variadic function.
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* @returns A function object.
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*
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* A function object can then be used to call the C function it represents
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* like so:
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*
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* const myFunction = myLibrary.declare("myFunction", ctypes.default_abi,
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* ctypes.double, ctypes.int32_t, ctypes.int32_t, ...);
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*
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* var result = myFunction(5, 10, ...);
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*
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* Arguments will be checked against the types supplied at declaration, and
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* some attempt to convert values (e.g. boolean true/false to integer 0/1)
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* will be made. Otherwise, if types do not match, or conversion fails,
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* an exception will be thrown. Arguments passed as variadic parameters
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* must have an explicit ctypes type, since their types are not declared
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* in the signature.
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*/
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*/
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// Initialize the ctypes object. You do not need to do this yourself.
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// Initialize the ctypes object. You do not need to do this yourself.
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