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better compile errors when frame depends on itself

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This commit is contained in:
Andrew Kelley
2019-08-08 13:44:57 -04:00
parent 8be95af480
commit bfa1d12fba
4 changed files with 49 additions and 6 deletions
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src/ir.cpp
+9 -3
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@@ -8217,18 +8217,24 @@ bool ir_gen_fn(CodeGen *codegen, ZigFn *fn_entry) {
return ir_gen(codegen, body_node, fn_entry->child_scope, ir_executable);
}
static void add_call_stack_errors(CodeGen *codegen, IrExecutable *exec, ErrorMsg *err_msg, int limit) {
static void ir_add_call_stack_errors(CodeGen *codegen, IrExecutable *exec, ErrorMsg *err_msg, int limit) {
if (!exec || !exec->source_node || limit < 0) return;
add_error_note(codegen, err_msg, exec->source_node, buf_sprintf("called from here"));
add_call_stack_errors(codegen, exec->parent_exec, err_msg, limit - 1);
ir_add_call_stack_errors(codegen, exec->parent_exec, err_msg, limit - 1);
}
void ir_add_analysis_trace(IrAnalyze *ira, ErrorMsg *err_msg, Buf *text) {
IrInstruction *old_instruction = ira->old_irb.current_basic_block->instruction_list.at(ira->instruction_index);
add_error_note(ira->codegen, err_msg, old_instruction->source_node, text);
ir_add_call_stack_errors(ira->codegen, ira->new_irb.exec, err_msg, 10);
}
static ErrorMsg *exec_add_error_node(CodeGen *codegen, IrExecutable *exec, AstNode *source_node, Buf *msg) {
invalidate_exec(exec);
ErrorMsg *err_msg = add_node_error(codegen, source_node, msg);
if (exec->parent_exec) {
add_call_stack_errors(codegen, exec, err_msg, 10);
ir_add_call_stack_errors(codegen, exec, err_msg, 10);
}
return err_msg;
}