nvim/lua/config/inlay-hints.lua

vim.lsp.config("vtsls", {
    settings = {
        typescript = {
            inlayHints = {
                parameterNames = { enabled = "all" },
                parameterTypes = { enabled = true },
                variableTypes = { enabled = true },
                propertyDeclarationTypes = { enabled = true },
                functionLikeReturnTypes = { enabled = true },
                enumMemberValues = { enabled = true },
            },
        },
    },
})

vim.lsp.config("tsgo", {
    settings = {
        typescript = {
            inlayHints = {
                parameterNames = { enabled = "all" },
                parameterTypes = { enabled = true },
                variableTypes = { enabled = true },
                propertyDeclarationTypes = { enabled = true },
                functionLikeReturnTypes = { enabled = true },
                enumMemberValues = { enabled = true },
            },
        },
    },
})

vim.lsp.config("denols", {
    settings = {
        deno = {
            inlayHints = {
                parameterNames = {
                    enabled = "all", -- "none" | "literals" | "all"
                    suppressWhenArgumentMatchesName = true,
                },
                parameterTypes = { enabled = true },
                variableTypes = {
                    enabled = true,
                    suppressWhenTypeMatchesName = true,
                },
                propertyDeclarationTypes = { enabled = true },
                functionLikeReturnTypes = { enabled = true },
                enumMemberValues = { enabled = true },
            },
        },
    },
})

vim.lsp.config("basedpyright", {
    settings = {
        basedpyright = {
            analysis = {
                inlayHints = {
                    variableTypes = true, -- Variable type hints
                    callArgumentNames = true, -- Function argument name hints
                    callArgumentNamesMatching = false, -- Show even when arg name matches param name
                    functionReturnTypes = true, -- Function return type hints
                    genericTypes = true, -- Inferred generic type hints
                },
            },
        },
    },
})

vim.lsp.config("gopls", {
    settings = {
        gopls = {
            hints = {
                assignVariableTypes = true, -- Variable type hints in assignments
                compositeLiteralFields = true, -- Composite literal field name hints
                compositeLiteralTypes = true, -- Composite literal type hints
                constantValues = true, -- Constant value hints (iota)
                functionTypeParameters = true, -- Generic function type parameter hints
                ignoredError = true, -- Implicitly discarded error hints (experimental)
                parameterNames = true, -- Function call parameter name hints
                rangeVariableTypes = true, -- Range statement variable type hints
            },
        },
    },
})

vim.lsp.config("rust_analyzer", {
    settings = {
        ["rust-analyzer"] = {
            inlayHints = {
                -- Type related
                typeHints = { enable = true }, -- Variable type hints
                chainingHints = { enable = true }, -- Method chain type hints
                closureReturnTypeHints = { enable = "never" }, -- "never" | "always"
                closureCaptureHints = { enable = false }, -- Closure capture hints
                -- Parameter related
                parameterHints = { enable = true }, -- Function parameter hints
                -- Brace related
                closingBraceHints = { enable = true, minLines = 25 }, -- Closing brace hints
                -- Other
                bindingModeHints = { enable = false }, -- Binding mode hints
                discriminantHints = { enable = "never" }, -- Enum discriminant hints
                expressionAdjustmentHints = { enable = "never" }, -- Type adjustment hints
                implicitDrops = { enable = false }, -- Implicit drop hints
                lifetimeElisionHints = { enable = "never" }, -- Lifetime elision hints
                genericParameterHints = {
                    type = { enable = false },
                    lifetime = { enable = false },
                    const = { enable = false },
                },
            },
        },
    },
})

vim.lsp.config("zls", {
    settings = {
        zls = {
            enable_inlay_hints = true, -- Global enable
            inlay_hints_show_builtin = true, -- Show builtin function hints
            inlay_hints_show_parameter_name = true, -- Show parameter name hints
            inlay_hints_show_variable_type_hints = true, -- Show variable type hints
            inlay_hints_show_struct_literal_field_type = true, -- Show struct literal field type hints
            inlay_hints_exclude_single_argument = true, -- Exclude single argument hints
            inlay_hints_hide_redundant_param_names = false, -- Hide redundant parameter names
            inlay_hints_hide_redundant_param_names_last_token = false, -- Hide redundant param names for last token
        },
    },
})

vim.lsp.config("jdtls", {
    settings = {
        java = {
            inlayHints = {
                parameterNames = {
                    enabled = "all", -- "none" | "literals" | "all"
                    exclusions = { "this" },
                },
                variableTypes = { enabled = true }, -- Variable type hints
                parameterTypes = { enabled = true }, -- Parameter type hints
            },
        },
    },
})

vim.lsp.config("phpactor", {
    settings = {
        language_server_worse_reflection = {
            inlay_hints = {
                enable = true, -- Master switch
                types = true, -- Variable type hints
                params = true, -- Parameter name hints
            },
        },
    },
})