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Create and render big.Int from IntegerLiteral; group BinaryOperator

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hryx 2019-06-27 21:02:48 -07:00
parent 8435351581
commit b4bd52cc51
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1 changed files with 31 additions and 9 deletions
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src-self-hosted/translate_c.zig
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@ -372,22 +372,22 @@ fn transBinaryOperator(
},
.Add => {
const node = if (cIsUnsignedInteger(qt))
try transCreateNodeInfixOp(rp, scope, stmt, .AddWrap, .PlusPercent, "+%")
try transCreateNodeInfixOp(rp, scope, stmt, .AddWrap, .PlusPercent, "+%", true)
else
try transCreateNodeInfixOp(rp, scope, stmt, .Add, .Plus, "+");
try transCreateNodeInfixOp(rp, scope, stmt, .Add, .Plus, "+", true);
return maybeSuppressResult(rp, scope, result_used, TransResult{
.node = &node.base,
.node = node,
.child_scope = scope,
.node_scope = scope,
});
},
.Sub => {
const node = if (cIsUnsignedInteger(qt))
try transCreateNodeInfixOp(rp, scope, stmt, .SubWrap, .MinusPercent, "-%")
try transCreateNodeInfixOp(rp, scope, stmt, .SubWrap, .MinusPercent, "-%", true)
else
try transCreateNodeInfixOp(rp, scope, stmt, .Sub, .Minus, "-");
try transCreateNodeInfixOp(rp, scope, stmt, .Sub, .Minus, "-", true);
return maybeSuppressResult(rp, scope, result_used, TransResult{
.node = &node.base,
.node = node,
.child_scope = scope,
.node_scope = scope,
});
@ -1056,7 +1056,9 @@ fn transCreateNodeInfixOp(
op: ast.Node.InfixOp.Op,
op_tok_id: std.zig.Token.Id,
bytes: []const u8,
) !*ast.Node.InfixOp {
grouped: bool,
) !*ast.Node {
const lparen = if (grouped) try appendToken(rp.c, .LParen, "(") else undefined;
const lhs = try transExpr(rp, scope, ZigClangBinaryOperator_getLHS(stmt), .used, .l_value);
const op_token = try appendToken(rp.c, op_tok_id, bytes);
const rhs = try transExpr(rp, scope, ZigClangBinaryOperator_getRHS(stmt), .used, .r_value);
@ -1068,7 +1070,16 @@ fn transCreateNodeInfixOp(
.op = op,
.rhs = rhs.node,
};
return node;
if (!grouped) return &node.base;
const rparen = try appendToken(rp.c, .RParen, ")");
const grouped_expr = try rp.c.a().create(ast.Node.GroupedExpression);
grouped_expr.* = ast.Node.GroupedExpression{
.base = ast.Node{ .id = .GroupedExpression },
.lparen = lparen,
.expr = &node.base,
.rparen = rparen,
};
return &grouped_expr.base;
}
fn transCreateNodePtrType(
@ -1096,10 +1107,21 @@ fn transCreateNodePtrType(
}
fn transCreateNodeAPInt(c: *Context, int: ?*const ZigClangAPSInt) !*ast.Node {
const num_limbs = ZigClangAPSInt_getNumWords(int.?);
var big = try std.math.big.Int.initCapacity(c.a(), num_limbs);
defer big.deinit();
const data = ZigClangAPSInt_getRawData(int.?);
var i: usize = 0;
while (i < num_limbs) : (i += 1) big.limbs[i] = data[i];
const str = big.toString(c.a(), 10) catch |err| switch (err) {
error.OutOfMemory => return error.OutOfMemory,
else => unreachable,
};
const token = try appendToken(c, .IntegerLiteral, str);
const node = try c.a().create(ast.Node.IntegerLiteral);
node.* = ast.Node.IntegerLiteral{
.base = ast.Node{ .id = .IntegerLiteral },
.token = try appendToken(c, .IntegerLiteral, "3333333"), // TODO
.token = token,
};
return &node.base;
}