diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/library.js | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/src/library.js b/src/library.js index 7036a3f3..59020bc2 100644 --- a/src/library.js +++ b/src/library.js @@ -4487,6 +4487,16 @@ LibraryManager.library = { __gxx_personality_v0: function() { }, + __cxa_is_number_type: function(type) { + var isNumber = false; + try { if (type == __ZTIi) isNumber = true } catch(e){} + try { if (type == __ZTIl) isNumber = true } catch(e){} + try { if (type == __ZTIx) isNumber = true } catch(e){} + try { if (type == __ZTIf) isNumber = true } catch(e){} + try { if (type == __ZTId) isNumber = true } catch(e){} + return isNumber; + }, + // Finds a suitable catch clause for when an exception is thrown. // In normal compilers, this functionality is handled by the C++ // 'personality' routine. This is passed a fairly complex structure @@ -4497,18 +4507,12 @@ LibraryManager.library = { // functionality boils down to picking a suitable 'catch' block. // We'll do that here, instead, to keep things simpler. - __cxa_find_matching_catch__deps: ['__cxa_does_inherit'], + __cxa_find_matching_catch__deps: ['__cxa_does_inherit', '__cxa_is_number_type'], __cxa_find_matching_catch: function(thrown, throwntype, typeArray) { // If throwntype is a pointer, this means a pointer has been // thrown. When a pointer is thrown, actually what's thrown // is a pointer to the pointer. We'll dereference it. - var isNumber = false; // Numbers are a simpler case, no need to deref - try { if (throwntype == __ZTIi) isNumber = true } catch(e){} - try { if (throwntype == __ZTIl) isNumber = true } catch(e){} - try { if (throwntype == __ZTIx) isNumber = true } catch(e){} - try { if (throwntype == __ZTIf) isNumber = true } catch(e){} - try { if (throwntype == __ZTId) isNumber = true } catch(e){} - if (throwntype != 0 && !isNumber) { + if (throwntype != 0 && !___cxa_is_number_type(throwntype)) { var throwntypeInfoAddr= {{{ makeGetValue('throwntype', '0', '*') }}} - {{{ Runtime.QUANTUM_SIZE*2 }}}; var throwntypeInfo= {{{ makeGetValue('throwntypeInfoAddr', '0', '*') }}}; if (throwntypeInfo == 0) @@ -4530,13 +4534,18 @@ LibraryManager.library = { // Recursively walks up the base types of 'possibilityType' // to see if any of them match 'definiteType'. - + __cxa_does_inherit__deps: ['__cxa_is_number_type'], __cxa_does_inherit: function(definiteType, possibilityType, possibility) { if (possibility == 0) return false; if (possibilityType == 0 || possibilityType == definiteType) return true; - var possibility_type_infoAddr = {{{ makeGetValue('possibilityType', '0', '*') }}} - {{{ Runtime.QUANTUM_SIZE*2 }}}; - var possibility_type_info = {{{ makeGetValue('possibility_type_infoAddr', '0', '*') }}}; + var possibility_type_info; + if (___cxa_is_number_type(possibilityType)) { + possibility_type_info = possibilityType; + } else { + var possibility_type_infoAddr = {{{ makeGetValue('possibilityType', '0', '*') }}} - {{{ Runtime.QUANTUM_SIZE*2 }}}; + possibility_type_info = {{{ makeGetValue('possibility_type_infoAddr', '0', '*') }}}; + } switch (possibility_type_info) { case 0: // possibility is a pointer // See if definite type is a pointer |