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moved duplicated code to common functions

master
Matthew Knight 2020-05-04 23:45:31 -07:00
parent c5198bd76f
commit db4833d4d6
2 changed files with 39 additions and 29 deletions
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66
src-self-hosted/translate_c.zig
View File

@ -668,17 +668,7 @@ fn transTypeDefAsBuiltin(c: *Context, typedef_decl: *const ZigClangTypedefNameDe
return transCreateNodeIdentifier(c, builtin_name);
}
fn transTypeDef(c: *Context, typedef_decl: *const ZigClangTypedefNameDecl, top_level_visit: bool) Error!?*ast.Node {
if (c.decl_table.get(@ptrToInt(ZigClangTypedefNameDecl_getCanonicalDecl(typedef_decl)))) |kv|
return transCreateNodeIdentifier(c, kv.value); // Avoid processing this decl twice
const rp = makeRestorePoint(c);
const typedef_name = try c.str(ZigClangNamedDecl_getName_bytes_begin(@ptrCast(*const ZigClangNamedDecl, typedef_decl)));
// TODO https://github.com/ziglang/zig/issues/3756
// TODO https://github.com/ziglang/zig/issues/1802
const checked_name = if (isZigPrimitiveType(typedef_name)) try std.fmt.allocPrint(c.a(), "{}_{}", .{ typedef_name, c.getMangle() }) else typedef_name;
fn checkForBuiltinTypedef(c: *Context, typedef_decl: *const ZigClangTypedefNameDecl, checked_name: []const u8) !?*ast.Node {
if (mem.eql(u8, checked_name, "uint8_t"))
return transTypeDefAsBuiltin(c, typedef_decl, "u8")
else if (mem.eql(u8, checked_name, "int8_t"))
@ -704,28 +694,49 @@ fn transTypeDef(c: *Context, typedef_decl: *const ZigClangTypedefNameDecl, top_l
else if (mem.eql(u8, checked_name, "size_t"))
return transTypeDefAsBuiltin(c, typedef_decl, "usize");
return null;
}
fn transTypeDef(c: *Context, typedef_decl: *const ZigClangTypedefNameDecl, top_level_visit: bool) Error!?*ast.Node {
if (c.decl_table.get(@ptrToInt(ZigClangTypedefNameDecl_getCanonicalDecl(typedef_decl)))) |kv|
return transCreateNodeIdentifier(c, kv.value); // Avoid processing this decl twice
const rp = makeRestorePoint(c);
const typedef_name = try c.str(ZigClangNamedDecl_getName_bytes_begin(@ptrCast(*const ZigClangNamedDecl, typedef_decl)));
// TODO https://github.com/ziglang/zig/issues/3756
// TODO https://github.com/ziglang/zig/issues/1802
const checked_name = if (isZigPrimitiveType(typedef_name)) try std.fmt.allocPrint(c.a(), "{}_{}", .{ typedef_name, c.getMangle() }) else typedef_name;
if (try checkForBuiltinTypedef(c, typedef_decl, checked_name)) |node| {
return node;
}
if (!top_level_visit) {
return transCreateNodeIdentifier(c, checked_name);
}
_ = try c.decl_table.put(@ptrToInt(ZigClangTypedefNameDecl_getCanonicalDecl(typedef_decl)), checked_name);
const visib_tok = try appendToken(c, .Keyword_pub, "pub");
const const_tok = try appendToken(c, .Keyword_const, "const");
const node = try transCreateNodeVarDecl(c, true, true, checked_name);
node.eq_token = try appendToken(c, .Equal, "=");
const node = (try transZigTypedef(rp, typedef_decl, true, checked_name)) orelse return null;
try addTopLevelDecl(c, checked_name, &node.base);
return transCreateNodeIdentifier(c, checked_name);
}
fn transZigTypedef(rp: RestorePoint, typedef_decl: *const ZigClangTypedefNameDecl, toplevel: bool, checked_name: []const u8) Error!?*ast.Node.VarDecl {
const node = try transCreateNodeVarDecl(rp.c, toplevel, true, checked_name);
node.eq_token = try appendToken(rp.c, .Equal, "=");
const child_qt = ZigClangTypedefNameDecl_getUnderlyingType(typedef_decl);
const typedef_loc = ZigClangTypedefNameDecl_getLocation(typedef_decl);
node.init_node = transQualType(rp, child_qt, typedef_loc) catch |err| switch (err) {
error.UnsupportedType => {
try failDecl(c, typedef_loc, checked_name, "unable to resolve typedef child type", .{});
try failDecl(rp.c, typedef_loc, checked_name, "unable to resolve typedef child type", .{});
return null;
},
error.OutOfMemory => |e| return e,
};
node.semicolon_token = try appendToken(c, .Semicolon, ";");
try addTopLevelDecl(c, checked_name, &node.base);
return transCreateNodeIdentifier(c, checked_name);
node.semicolon_token = try appendToken(rp.c, .Semicolon, ";");
return node;
}
fn transRecordDecl(c: *Context, record_decl: *const ZigClangRecordDecl) Error!?*ast.Node {
@ -1395,21 +1406,18 @@ fn transDeclStmt(rp: RestorePoint, scope: *Scope, stmt: *const ZigClangDeclStmt)
try block_scope.block_node.statements.push(&node.base);
},
.Typedef => {
const type_decl = @ptrCast(*const ZigClangTypedefNameDecl, it[0]);
const typedef_decl = @ptrCast(*const ZigClangTypedefNameDecl, it[0]);
const name = try c.str(ZigClangNamedDecl_getName_bytes_begin(
@ptrCast(*const ZigClangNamedDecl, type_decl),
@ptrCast(*const ZigClangNamedDecl, typedef_decl),
));
const underlying_qual = ZigClangTypedefNameDecl_getUnderlyingType(type_decl);
const underlying_type = ZigClangQualType_getTypePtr(underlying_qual);
const mangled_name = try block_scope.makeMangledName(c, name);
const node = try transCreateNodeVarDecl(c, false, true, mangled_name);
node.eq_token = try appendToken(c, .Equal, "=");
if (try checkForBuiltinTypedef(c, typedef_decl, mangled_name)) |ast_node| {
return ast_node;
}
const loc = ZigClangStmt_getBeginLoc(@ptrCast(*const ZigClangStmt, stmt));
node.init_node = try transType(rp, underlying_type, loc);
node.semicolon_token = try appendToken(c, .Semicolon, ";");
const node = (try transZigTypedef(rp, typedef_decl, false, mangled_name))
orelse return error.UnsupportedTranslation;
try block_scope.block_node.statements.push(&node.base);
},
else => |kind| return revertAndWarn(

2
test/run_translated_c.zig
View File

@ -245,10 +245,12 @@ pub fn addCases(cases: *tests.RunTranslatedCContext) void {
, "");
cases.add("scoped typedef",
\\#include <stdint.h>
\\int main(int argc, char **argv) {
\\ typedef int Foo;
\\ typedef Foo Bar;
\\ typedef void (*func)(int);
\\ typedef uint32_t Number;
\\ Foo i;
\\ Bar j;
\\ return 0;