| author |  pfg <pfg@pfg.pw> 2020-10-06 22:38:36-07:00 |
| committer |  Andrew Kelley <andrew@ziglang.org> 2020-10-07 03:50:11-04:00 |
| log | ae161863db544e2db20ba7705bf0ada7d3ce5c94 |
| tree | be0b211bad4d896ff107dab38ef398bc00d4dabe |
| parent | f2d374e8465042fa5cb6bf2be7b9b086948f3a94 |
stage1: improve error messages for missing `try` statements
2 files changed, 11 insertions(+), 7 deletions(-)
src- stage1
src/stage1/ir.cpp+6-2
| ... | ... | @@ -20102,7 +20102,7 @@ static IrInstGen *ir_analyze_store_ptr(IrAnalyze *ira, IrInst* source_instr, |
| 20102 | 20102 | if (uncasted_value->value->type->id == ZigTypeIdErrorUnion || |
| 20103 | 20103 | uncasted_value->value->type->id == ZigTypeIdErrorSet) |
| 20104 | 20104 | { |
| 20105 | ir_add_error(ira, source_instr, buf_sprintf("error is discarded")); | |
| 20105 | ir_add_error(ira, source_instr, buf_sprintf("error is discarded. consider using `try`, `catch`, or `if`")); | |
| 20106 | 20106 | return ira->codegen->invalid_inst_gen; |
| 20107 | 20107 | } |
| 20108 | 20108 | return ir_const_void(ira, source_instr); |
| ... | ... | @@ -29492,7 +29492,11 @@ static IrInstGen *ir_analyze_instruction_check_statement_is_void(IrAnalyze *ira, |
| 29492 | 29492 | return ira->codegen->invalid_inst_gen; |
| 29493 | 29493 | |
| 29494 | 29494 | if (statement_type->id != ZigTypeIdVoid && statement_type->id != ZigTypeIdUnreachable) { |
| 29495 | ir_add_error(ira, &instruction->base.base, buf_sprintf("expression value is ignored")); | |
| 29495 | if(statement_type->id == ZigTypeIdErrorUnion || statement_type->id == ZigTypeIdErrorSet) { | |
| 29496 | ir_add_error(ira, &instruction->base.base, buf_sprintf("error is ignored. consider using `try`, `catch`, or `if`")); | |
| 29497 | }else{ | |
| 29498 | ir_add_error(ira, &instruction->base.base, buf_sprintf("expression value is ignored")); | |
| 29499 | } | |
| 29496 | 29500 | } |
| 29497 | 29501 | |
| 29498 | 29502 | return ir_const_void(ira, &instruction->base.base); |
test/compile_errors.zig+5-5
| ... | ... | @@ -2287,7 +2287,7 @@ pub fn addCases(cases: *tests.CompileErrorContext) void { |
| 2287 | 2287 | \\ return error.OutOfMemory; |
| 2288 | 2288 | \\} |
| 2289 | 2289 | , &[_][]const u8{ |
| 2290 | "tmp.zig:2:12: error: error is discarded", | |
| 2290 | "tmp.zig:2:12: error: error is discarded. consider using `try`, `catch`, or `if`", | |
| 2291 | 2291 | }); |
| 2292 | 2292 | |
| 2293 | 2293 | cases.add("volatile on global assembly", |
| ... | ... | @@ -2338,9 +2338,9 @@ pub fn addCases(cases: *tests.CompileErrorContext) void { |
| 2338 | 2338 | \\ return error.Bad; |
| 2339 | 2339 | \\} |
| 2340 | 2340 | , &[_][]const u8{ |
| 2341 | "tmp.zig:2:24: error: expression value is ignored", | |
| 2342 | "tmp.zig:6:25: error: expression value is ignored", | |
| 2343 | "tmp.zig:10:25: error: expression value is ignored", | |
| 2341 | "tmp.zig:2:24: error: error is ignored. consider using `try`, `catch`, or `if`", | |
| 2342 | "tmp.zig:6:25: error: error is ignored. consider using `try`, `catch`, or `if`", | |
| 2343 | "tmp.zig:10:25: error: error is ignored. consider using `try`, `catch`, or `if`", | |
| 2344 | 2344 | }); |
| 2345 | 2345 | |
| 2346 | 2346 | cases.add("empty while loop body", |
| ... | ... | @@ -6236,7 +6236,7 @@ pub fn addCases(cases: *tests.CompileErrorContext) void { |
| 6236 | 6236 | \\} |
| 6237 | 6237 | \\fn bar() anyerror!i32 { return 0; } |
| 6238 | 6238 | , &[_][]const u8{ |
| 6239 | "tmp.zig:2:14: error: expression value is ignored", | |
| 6239 | "tmp.zig:2:14: error: error is ignored. consider using `try`, `catch`, or `if`", | |
| 6240 | 6240 | }); |
| 6241 | 6241 | |
| 6242 | 6242 | cases.add("dereference an array", |