mirrors/Odin
1
0
Fork 0
mirror of https://github.com/odin-lang/Odin.git synced 2025-12-30 18:02:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

x if cond else y and x when cond else y expressions

Browse Source
This commit is contained in:
gingerBill
2020-03-05 20:34:30 +00:00
parent 2fe0eaf2ad
commit e92fdb4a99
20 changed files with 336 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
src/ir.cpp
View File

@@ -7189,6 +7189,49 @@ irValue *ir_build_expr_internal(irProcedure *proc, Ast *expr) {
return ir_emit(proc, ir_instr_phi(proc, edges, type));
case_end;
case_ast_node(te, TernaryIfExpr, expr);
ir_emit_comment(proc, str_lit("TernaryIfExpr"));
auto edges = array_make<irValue *>(ir_allocator(), 0, 2);
GB_ASSERT(te->y != nullptr);
irBlock *then = ir_new_block(proc, nullptr, "if.then");
irBlock *done = ir_new_block(proc, nullptr, "if.done"); // NOTE(bill): Append later
irBlock *else_ = ir_new_block(proc, nullptr, "if.else");
irValue *cond = ir_build_cond(proc, te->cond, then, else_);
ir_start_block(proc, then);
Type *type = type_of_expr(expr);
ir_open_scope(proc);
array_add(&edges, ir_emit_conv(proc, ir_build_expr(proc, te->x), type));
ir_close_scope(proc, irDeferExit_Default, nullptr);
ir_emit_jump(proc, done);
ir_start_block(proc, else_);
ir_open_scope(proc);
array_add(&edges, ir_emit_conv(proc, ir_build_expr(proc, te->y), type));
ir_close_scope(proc, irDeferExit_Default, nullptr);
ir_emit_jump(proc, done);
ir_start_block(proc, done);
return ir_emit(proc, ir_instr_phi(proc, edges, type));
case_end;
case_ast_node(te, TernaryWhenExpr, expr);
TypeAndValue tav = type_and_value_of_expr(te->cond);
GB_ASSERT(tav.mode == Addressing_Constant);
GB_ASSERT(tav.value.kind == ExactValue_Bool);
if (tav.value.value_bool) {
return ir_build_expr(proc, te->x);
} else {
return ir_build_expr(proc, te->y);
}
case_end;
case_ast_node(ta, TypeAssertion, expr);
TokenPos pos = ast_token(expr).pos;
Type *type = tv.type;