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package server
import "core:fmt"
import "core:log"
import "core:mem"
import "core:odin/ast"
import "core:odin/parser"
import "core:odin/tokenizer"
import "core:path/filepath"
import path "core:path/slashpath"
import "core:slice"
import "core:sort"
import "core:strconv"
import "core:strings"
import "src:common"
SignatureInformationCapabilities :: struct {
parameterInformation: ParameterInformationCapabilities,
}
SignatureHelpClientCapabilities :: struct {
dynamicRegistration: bool,
signatureInformation: SignatureInformationCapabilities,
contextSupport: bool,
}
SignatureHelpOptions :: struct {
triggerCharacters: []string,
retriggerCharacters: []string,
}
SignatureHelp :: struct {
signatures: []SignatureInformation,
activeSignature: int,
activeParameter: int,
}
SignatureInformation :: struct {
label: string,
documentation: string,
parameters: []ParameterInformation,
}
ParameterInformation :: struct {
label: string,
}
seperate_proc_field_arguments :: proc(procedure: ^Symbol) {
if value, ok := &procedure.value.(SymbolProcedureValue); ok {
types := make([dynamic]^ast.Field, context.temp_allocator)
for arg, i in value.orig_arg_types {
if len(arg.names) == 1 {
append(&types, arg)
continue
}
for name in arg.names {
field: ^ast.Field = new_type(ast.Field, arg.pos, arg.end, context.temp_allocator)
field.names = make([]^ast.Expr, 1, context.temp_allocator)
field.names[0] = name
field.type = arg.type
append(&types, field)
}
}
value.orig_arg_types = types[:]
}
}
get_signature_information :: proc(document: ^Document, position: common.Position) -> (SignatureHelp, bool) {
signature_help: SignatureHelp
ast_context := make_ast_context(
document.ast,
document.imports,
document.package_name,
document.uri.uri,
document.fullpath,
)
position_context, ok := get_document_position_context(document, position, .SignatureHelp)
if !ok {
log.warn("Failed to get position context")
return signature_help, true
}
ast_context.position_hint = position_context.hint
//TODO(should probably not be an ast.Expr, but ast.Call_Expr)
if position_context.call == nil {
return signature_help, true
}
get_globals(document.ast, &ast_context)
if position_context.function != nil {
get_locals(document.ast, position_context.function, &ast_context, &position_context)
}
for comma, i in position_context.call_commas {
if position_context.position > comma {
signature_help.activeParameter = i + 1
} else if position_context.position == comma {
signature_help.activeParameter = i
}
}
if position_context.arrow {
signature_help.activeParameter += 1
}
call: Symbol
call, ok = resolve_type_expression(&ast_context, position_context.call)
if !ok {
return signature_help, true
}
seperate_proc_field_arguments(&call)
signature_information := make([dynamic]SignatureInformation, context.temp_allocator)
if value, ok := call.value.(SymbolProcedureValue); ok {
parameters := make([]ParameterInformation, len(value.orig_arg_types), context.temp_allocator)
for arg, i in value.orig_arg_types {
if arg.type != nil {
if _, is_ellipsis := arg.type.derived.(^ast.Ellipsis); is_ellipsis {
signature_help.activeParameter = min(i, signature_help.activeParameter)
}
}
parameters[i].label = node_to_string(arg)
}
sb := strings.builder_make(context.temp_allocator)
write_procedure_symbol_signature(&sb, value, detailed_signature = false)
call.signature = strings.to_string(sb)
info := SignatureInformation {
label = get_signature(call),
documentation = construct_symbol_docs(call, markdown = false),
parameters = parameters,
}
append(&signature_information, info)
} else if value, ok := call.value.(SymbolAggregateValue); ok {
//function overloaded procedures
for symbol in value.symbols {
symbol := symbol
if value, ok := symbol.value.(SymbolProcedureValue); ok {
parameters := make([]ParameterInformation, len(value.orig_arg_types), context.temp_allocator)
for arg, i in value.orig_arg_types {
if arg.type != nil {
if _, is_ellipsis := arg.type.derived.(^ast.Ellipsis); is_ellipsis {
signature_help.activeParameter = min(i, signature_help.activeParameter)
}
}
parameters[i].label = node_to_string(arg)
}
sb := strings.builder_make(context.temp_allocator)
write_procedure_symbol_signature(&sb, value, detailed_signature = false)
symbol.signature = strings.to_string(sb)
info := SignatureInformation {
label = get_signature(symbol),
documentation = construct_symbol_docs(symbol, markdown = false),
parameters = parameters,
}
append(&signature_information, info)
}
}
}
signature_help.signatures = signature_information[:]
return signature_help, true
}
@(private="file")
get_signature :: proc(symbol: Symbol) -> string {
sb := strings.builder_make()
write_symbol_name(&sb, symbol)
strings.write_string(&sb, symbol.signature)
return strings.to_string(sb)
}
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