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Optimized and improved aggregate initialization. Compound literal updated to Foo({ 1, 2 })-style. ".name = x" style initialization for named arguments and designated initializers. Added runtime messages on panics. subarrays convert implictly to pointers. len/len() functions. Fix taking slice of pointer. Vararg fixes

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Consistent length typedef.

First stab at initializers.

Change compound literal to Foo({ 1, 2 }) style.

Fixed up some tests.

Optimize the zero struct codegen.

Optimize union empty initializer.

Fix issues with unions. Added alignment to globals. Added some union tests.

Use puts to emit error messages during runtime. Fixup of int[] -> int* style conversions.

Fix implicit conversion of int[3]* -> int*

Fix int[] size. Use () to invoke the length of a subarray. Fix taking a slice of a pointer. Limit the number of members in a struct.

Fixes to vararg using debug and cleanups to slices.
This commit is contained in:
Christoffer Lerno
2020-12-09 00:41:23 +01:00
parent 6a5a0f2b94
commit 4da36dfed9
44 changed files with 1854 additions and 650 deletions
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32
src/compiler/sema_decls.c
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@@ -46,10 +46,9 @@ static inline bool sema_analyse_struct_member(Context *context, Decl *decl)
static bool sema_analyse_union_members(Context *context, Decl *decl, Decl **members)
{
unsigned max_size = 0;
//unsigned max_size_element = 0;
unsigned max_alignment_element = 0;
unsigned max_alignment = 0;
ByteSize max_size = 0;
MemberIndex max_alignment_element = 0;
AlignSize max_alignment = 0;
VECEACH(members, i)
{
@@ -69,8 +68,8 @@ static bool sema_analyse_union_members(Context *context, Decl *decl, Decl **memb
continue;
}
size_t member_alignment = type_abi_alignment(member->type);
size_t member_size = type_size(member->type);
AlignSize member_alignment = type_abi_alignment(member->type);
ByteSize member_size = type_size(member->type);
// Update max alignment
if (member_alignment > max_alignment)
@@ -84,10 +83,10 @@ static bool sema_analyse_union_members(Context *context, Decl *decl, Decl **memb
//max_size_element = i;
max_size = member_size;
// If this is bigger than the previous with max
// alignment, pick this as the maximum size element.
if (max_alignment_element != i && max_alignment == member_alignment)
// alignment, pick this as the maximum size field.
if (max_alignment_element != (MemberIndex)i && max_alignment == member_alignment)
{
max_alignment_element = i;
max_alignment_element = (MemberIndex)i;
}
}
// Offset is always 0
@@ -103,7 +102,9 @@ static bool sema_analyse_union_members(Context *context, Decl *decl, Decl **memb
if (!decl->is_packed) decl->alignment = MAX(decl->alignment, max_alignment);
// We're only packed if the max alignment is > 1
decl->is_packed = max_alignment > 1;
decl->is_packed = decl->is_packed && max_alignment > 1;
decl->strukt.union_rep = max_alignment_element;
// The actual size might be larger than the max size due to alignment.
unsigned size = aligned_offset(max_size, decl->alignment);
@@ -120,10 +121,10 @@ static bool sema_analyse_union_members(Context *context, Decl *decl, Decl **memb
static bool sema_analyse_struct_members(Context *context, Decl *decl, Decl **members)
{
// Default alignment is 1 even if the it is empty.
size_t natural_alignment = 1;
AlignSize natural_alignment = 1;
bool is_unaligned = false;
size_t size = 0;
size_t offset = 0;
ByteSize size = 0;
ByteSize offset = 0;
bool is_packed = decl->is_packed;
VECEACH(members, i)
{
@@ -145,7 +146,7 @@ static bool sema_analyse_struct_members(Context *context, Decl *decl, Decl **mem
if (!decl_ok(decl)) return false;
size_t member_alignment = type_abi_alignment(member->type);
AlignSize member_alignment = type_abi_alignment(member->type);
// If the member alignment is higher than the currently detected alignment,
// then we update the natural alignment
@@ -614,6 +615,7 @@ static AttributeType sema_analyse_attribute(Context *context, Attr *attr, Attrib
SEMA_ERROR(attr->expr, "Alignment must be a power of two.");
return ATTRIBUTE_NONE;
}
attr->alignment = align;
}
return type;
@@ -757,7 +759,7 @@ static inline bool sema_analyse_global(Context *context, Decl *decl)
if (decl->var.init_expr && decl->type)
{
if (!sema_analyse_expr_of_required_type(context, decl->type, decl->var.init_expr, false)) return false;
if (!expr_is_constant_eval(decl->var.init_expr))
if (!decl->var.init_expr->constant)
{
SEMA_ERROR(decl->var.init_expr, "The expression must be a constant value.");