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Teach rustc to generate type descriptors.

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This commit is contained in:
Graydon Hoare 2010-11-05 18:27:57 -07:00
parent 3956b98312
commit 2122e363df
1 changed files with 13 additions and 0 deletions
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13
src/comp/middle/trans.rs
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@ -322,6 +322,19 @@ fn C_struct(vec[ValueRef] elts) -> ValueRef {
False);
}
fn C_tydesc(TypeRef t) -> ValueRef {
ret C_struct(vec(C_null(T_opaque()), // first_param
llvm.LLVMSizeOf(t), // size
llvm.LLVMAlignOf(t), // align
C_null(T_opaque()), // copy_glue_off
C_null(T_opaque()), // drop_glue_off
C_null(T_opaque()), // free_glue_off
C_null(T_opaque()), // sever_glue_off
C_null(T_opaque()), // mark_glue_off
C_null(T_opaque()), // obj_drop_glue_off
C_null(T_opaque()))); // is_stateful
}
fn decl_cdecl_fn(ModuleRef llmod, str name,
vec[TypeRef] inputs, TypeRef output) -> ValueRef {
let TypeRef llty = T_fn(inputs, output);