Mercurial > projects > ldc

comparison ir/irlandingpad.h @ 320:d772927ca496 trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
[svn r341] Fix all regressions between [332] and [340]: - fixed assert on empty catch body - fixed(?) typedefed classes in catch specification - fixed assert with catchall Added some documentation.
author ChristianK
date Sat, 05 Jul 2008 13:05:29 +0200
parents e9c93739bc4c
children d97b017a8aef
comparison
equal deleted inserted replaced
319:e9c93739bc4c 320:d772927ca496
5 #include "statement.h" 5 #include "statement.h"
6 6
7 #include <deque> 7 #include <deque>
8 #include <stack> 8 #include <stack>
9 9
10 // only to be used within IRLandingPad
11 // holds information about a single catch or finally
10 struct IRLandingPadInfo 12 struct IRLandingPadInfo
11 { 13 {
12 // default constructor for being able to store in a vector 14 // default constructor for being able to store in a vector
13 IRLandingPadInfo() 15 IRLandingPadInfo()
14 : target(NULL), finallyBody(NULL), catchType(NULL) 16 : target(NULL), finallyBody(NULL), catchType(NULL)
15 {} 17 {}
16 18
19 // constructor for catch
17 IRLandingPadInfo(Catch* catchstmt, llvm::BasicBlock* end); 20 IRLandingPadInfo(Catch* catchstmt, llvm::BasicBlock* end);
21
22 // constructor for finally
18 IRLandingPadInfo(Statement* finallystmt); 23 IRLandingPadInfo(Statement* finallystmt);
19 24
20 // the target catch bb if this is a catch 25 // the target catch bb if this is a catch
21 // or the target finally bb if this is a finally 26 // or the target finally bb if this is a finally
22 llvm::BasicBlock* target; 27 llvm::BasicBlock* target;
26 31
27 // nonzero if this is a catch 32 // nonzero if this is a catch
28 ClassDeclaration* catchType; 33 ClassDeclaration* catchType;
29 }; 34 };
30 35
36
37 // holds information about all possible catch and finally actions
38 // and can emit landing pads to be called from the unwind runtime
31 struct IRLandingPad 39 struct IRLandingPad
32 { 40 {
33 IRLandingPad() : catch_var(NULL) {} 41 IRLandingPad() : catch_var(NULL) {}
34 42
35 // builds a new landing pad according to given infos 43 // builds a new landing pad according to given infos
36 // and the ones on the stack. also stores it as invoke target 44 // and the ones on the stack. also stores it as invoke target
37 void push(llvm::BasicBlock* inBB); 45 void push(llvm::BasicBlock* inBB);
38 46
47 // add catch information, will be used in next call to push
39 void addCatch(Catch* catchstmt, llvm::BasicBlock* end); 48 void addCatch(Catch* catchstmt, llvm::BasicBlock* end);
49 // add finally information, will be used in next call to push
40 void addFinally(Statement* finallystmt); 50 void addFinally(Statement* finallystmt);
41 51
42 // pops the most recently constructed landing pad bb 52 // pops the most recently constructed landing pad bb
43 // and its infos 53 // and its infos
44 void pop(); 54 void pop();