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fix missing compile errors on builtin cast functions

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This commit is contained in:
Vexu 2020-04-17 16:36:08 +03:00 committed by Andrew Kelley
parent 8e96922f31
commit c026a9f6d2
2 changed files with 86 additions and 28 deletions
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58
src/ir.cpp
View File

@ -25957,16 +25957,10 @@ static IrInstGen *ir_analyze_instruction_int_cast(IrAnalyze *ira, IrInstSrcIntCa
return ira->codegen->invalid_inst_gen;
}
if (instr_is_comptime(target)) {
if (instr_is_comptime(target) || dest_type->id == ZigTypeIdComptimeInt) {
return ir_implicit_cast2(ira, &instruction->target->base, target, dest_type);
}
if (dest_type->id == ZigTypeIdComptimeInt) {
ir_add_error(ira, &instruction->target->base, buf_sprintf("attempt to cast runtime value to '%s'",
buf_ptr(&dest_type->name)));
return ira->codegen->invalid_inst_gen;
}
return ir_analyze_widen_or_shorten(ira, &instruction->base.base, target, dest_type);
}
@ -25975,7 +25969,7 @@ static IrInstGen *ir_analyze_instruction_float_cast(IrAnalyze *ira, IrInstSrcFlo
if (type_is_invalid(dest_type))
return ira->codegen->invalid_inst_gen;
if (dest_type->id != ZigTypeIdFloat) {
if (dest_type->id != ZigTypeIdFloat && dest_type->id != ZigTypeIdComptimeFloat) {
ir_add_error(ira, &instruction->dest_type->base,
buf_sprintf("expected float type, found '%s'", buf_ptr(&dest_type->name)));
return ira->codegen->invalid_inst_gen;
@ -26001,6 +25995,10 @@ static IrInstGen *ir_analyze_instruction_float_cast(IrAnalyze *ira, IrInstSrcFlo
}
}
if (instr_is_comptime(target) || dest_type->id == ZigTypeIdComptimeFloat) {
return ir_implicit_cast2(ira, &instruction->target->base, target, dest_type);
}
if (target->value->type->id != ZigTypeIdFloat) {
ir_add_error(ira, &instruction->target->base, buf_sprintf("expected float type, found '%s'",
buf_ptr(&target->value->type->name)));
@ -26064,6 +26062,12 @@ static IrInstGen *ir_analyze_instruction_int_to_float(IrAnalyze *ira, IrInstSrcI
if (type_is_invalid(dest_type))
return ira->codegen->invalid_inst_gen;
if (dest_type->id != ZigTypeIdFloat && dest_type->id != ZigTypeIdComptimeFloat) {
ir_add_error(ira, &instruction->dest_type->base,
buf_sprintf("expected float type, found '%s'", buf_ptr(&dest_type->name)));
return ira->codegen->invalid_inst_gen;
}
IrInstGen *target = instruction->target->child;
if (type_is_invalid(target->value->type))
return ira->codegen->invalid_inst_gen;
@ -26077,33 +26081,31 @@ static IrInstGen *ir_analyze_instruction_int_to_float(IrAnalyze *ira, IrInstSrcI
return ir_resolve_cast(ira, &instruction->base.base, target, dest_type, CastOpIntToFloat);
}
static IrInstGen *ir_analyze_float_to_int(IrAnalyze *ira, IrInst* source_instr,
ZigType *dest_type, IrInstGen *operand, AstNode *operand_source_node)
{
if (operand->value->type->id == ZigTypeIdComptimeInt) {
return ir_implicit_cast(ira, operand, dest_type);
}
if (operand->value->type->id != ZigTypeIdFloat && operand->value->type->id != ZigTypeIdComptimeFloat) {
ir_add_error_node(ira, operand_source_node, buf_sprintf("expected float type, found '%s'",
buf_ptr(&operand->value->type->name)));
return ira->codegen->invalid_inst_gen;
}
return ir_resolve_cast(ira, source_instr, operand, dest_type, CastOpFloatToInt);
}
static IrInstGen *ir_analyze_instruction_float_to_int(IrAnalyze *ira, IrInstSrcFloatToInt *instruction) {
ZigType *dest_type = ir_resolve_type(ira, instruction->dest_type->child);
if (type_is_invalid(dest_type))
return ira->codegen->invalid_inst_gen;
IrInstGen *operand = instruction->target->child;
if (type_is_invalid(operand->value->type))
if (dest_type->id != ZigTypeIdInt && dest_type->id != ZigTypeIdComptimeInt) {
ir_add_error(ira, &instruction->dest_type->base, buf_sprintf("expected integer type, found '%s'", buf_ptr(&dest_type->name)));
return ira->codegen->invalid_inst_gen;
}
IrInstGen *target = instruction->target->child;
if (type_is_invalid(target->value->type))
return ira->codegen->invalid_inst_gen;
return ir_analyze_float_to_int(ira, &instruction->base.base, dest_type, operand,
instruction->target->base.source_node);
if (target->value->type->id == ZigTypeIdComptimeInt) {
return ir_implicit_cast(ira, target, dest_type);
}
if (target->value->type->id != ZigTypeIdFloat && target->value->type->id != ZigTypeIdComptimeFloat) {
ir_add_error_node(ira, target->base.source_node, buf_sprintf("expected float type, found '%s'",
buf_ptr(&target->value->type->name)));
return ira->codegen->invalid_inst_gen;
}
return ir_resolve_cast(ira, &instruction->base.base, target, dest_type, CastOpFloatToInt);
}
static IrInstGen *ir_analyze_instruction_err_to_int(IrAnalyze *ira, IrInstSrcErrToInt *instruction) {

56
test/compile_errors.zig
View File

@ -2,6 +2,62 @@ const tests = @import("tests.zig");
const std = @import("std");
pub fn addCases(cases: *tests.CompileErrorContext) void {
cases.addTest("invalid int casts",
\\export fn foo() void {
\\ var a: u32 = 2;
\\ _ = @intCast(comptime_int, a);
\\}
\\export fn bar() void {
\\ var a: u32 = 2;
\\ _ = @intToFloat(u32, a);
\\}
\\export fn baz() void {
\\ var a: u32 = 2;
\\ _ = @floatToInt(u32, a);
\\}
\\export fn qux() void {
\\ var a: u32 = 2;
\\ _ = @intCast(comptime_int, a);
\\}
, &[_][]const u8{
"tmp.zig:3:32: error: expected type 'comptime_int', found 'u32'",
"tmp.zig:3:9: note: referenced here",
"tmp.zig:7:21: error: expected float type, found 'u32'",
"tmp.zig:7:9: note: referenced here",
"tmp.zig:11:26: error: expected float type, found 'u32'",
"tmp.zig:11:9: note: referenced here",
"tmp.zig:15:32: error: expected type 'comptime_int', found 'u32'",
"tmp.zig:15:9: note: referenced here",
});
cases.addTest("invalid float casts",
\\export fn foo() void {
\\ var a: f32 = 2;
\\ _ = @floatCast(comptime_float, a);
\\}
\\export fn bar() void {
\\ var a: f32 = 2;
\\ _ = @floatToInt(f32, a);
\\}
\\export fn baz() void {
\\ var a: f32 = 2;
\\ _ = @intToFloat(f32, a);
\\}
\\export fn qux() void {
\\ var a: f32 = 2;
\\ _ = @floatCast(comptime_float, a);
\\}
, &[_][]const u8{
"tmp.zig:3:36: error: expected type 'comptime_float', found 'f32'",
"tmp.zig:3:9: note: referenced here",
"tmp.zig:7:21: error: expected integer type, found 'f32'",
"tmp.zig:7:9: note: referenced here",
"tmp.zig:11:26: error: expected int type, found 'f32'",
"tmp.zig:11:9: note: referenced here",
"tmp.zig:15:36: error: expected type 'comptime_float', found 'f32'",
"tmp.zig:15:9: note: referenced here",
});
cases.addTest("invalid assignments",
\\export fn entry1() void {
\\ var a: []const u8 = "foo";