diff --git a/src-self-hosted/astgen.zig b/src-self-hosted/astgen.zig index be70a724c2..d6093b3c85 100644 --- a/src-self-hosted/astgen.zig +++ b/src-self-hosted/astgen.zig @@ -33,6 +33,8 @@ pub fn expr(mod: *Module, scope: *Scope, node: *ast.Node) InnerError!*zir.Inst { .GreaterOrEqual => return cmp(mod, scope, node.castTag(.GreaterOrEqual).?, .gte), .LessThan => return cmp(mod, scope, node.castTag(.LessThan).?, .lt), .LessOrEqual => return cmp(mod, scope, node.castTag(.LessOrEqual).?, .lte), + .Period => return field(mod, scope, node.castTag(.Period).?), + .SuffixOp => return suffixOp(mod, scope, node.castTag(.SuffixOp).?), .BoolNot => return boolNot(mod, scope, node.castTag(.BoolNot).?), else => return mod.failNode(scope, node, "TODO implement astgen.Expr for {}", .{@tagName(node.tag)}), } @@ -121,6 +123,43 @@ fn assign(mod: *Module, scope: *Scope, infix_node: *ast.Node.SimpleInfixOp) Inne } } +/// Identifier nodes -> ZIR string instruction +pub fn identifierString(mod: *Module, scope: *Scope, node: *ast.Node.Identifier) InnerError!*zir.Inst { + const tree = scope.tree(); + const src = tree.token_locs[node.token].start; + + var ident_name = tree.tokenSlice(node.token); + if (std.mem.startsWith(u8, ident_name, "@")) + ident_name = ident_name[2 .. ident_name.len - 1]; + + return mod.addZIRInst(scope, src, zir.Inst.Str, .{ .bytes = ident_name }, .{}); +} + +fn field(mod: *Module, scope: *Scope, node: *ast.Node.SimpleInfixOp) InnerError!*zir.Inst { + const tree = scope.tree(); + const src = tree.token_locs[node.op_token].start; + + const lhs = try expr(mod, scope, node.lhs); + const field_name = try identifierString(mod, scope, node.rhs.castTag(.Identifier).?); + + const pointer = try mod.addZIRInst(scope, src, zir.Inst.FieldPtr, .{ .object_ptr = lhs, .field_name = field_name }, .{}); + return mod.addZIRInst(scope, src, zir.Inst.Deref, .{ .ptr = pointer }, .{}); +} + +fn suffixOp(mod: *Module, scope: *Scope, node: *ast.Node.SuffixOp) InnerError!*zir.Inst { + switch (node.op) { + .Deref => { + const tree = scope.tree(); + const src = tree.token_locs[node.rtoken].start; + + const lhs = try expr(mod, scope, node.lhs); + + return mod.addZIRInst(scope, src, zir.Inst.Deref, .{ .ptr = lhs }, .{}); + }, + else => return mod.failNode(scope, &node.base, "TODO implement astGenExpr for suffixOp {}", .{node.op}), + } +} + fn add(mod: *Module, scope: *Scope, infix_node: *ast.Node.SimpleInfixOp) InnerError!*zir.Inst { const lhs = try expr(mod, scope, infix_node.lhs); const rhs = try expr(mod, scope, infix_node.rhs);