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Got some aliases working

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Can't figure out a bug with document changing in the original context,
which causes further analysis to break.
This commit is contained in:
Sergeeeek 2020-05-17 09:47:48 +03:00
parent 8637099d72
commit 0b433815b3
3 changed files with 49 additions and 32 deletions
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30
src/analysis.zig
View File

@ -190,25 +190,14 @@ pub fn getChild(tree: *ast.Tree, node: *ast.Node, name: []const u8) ?*ast.Node {
/// Resolves the type of a node
pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.Node {
std.debug.warn("Resolving node of type {}\n{}\n", .{ node.id, analysis_ctx.tree.getNodeSource(node) });
std.debug.warn("Resolving node of type {}\n", .{node.id});
switch (node.id) {
.VarDecl => {
const vari = node.cast(ast.Node.VarDecl).?;
if (vari.lib_name) |lib_name_node| {
if (nodeToString(analysis_ctx.tree, lib_name_node)) |lib_name_str| {
// if (std.mem.eql(u8, lib_name_str, "ArrayList")) {
std.debug.warn("Evaluating var decl. {}\n", .{lib_name_str});
// }
}
}
return resolveTypeOfNode(analysis_ctx, vari.type_node orelse vari.init_node.?) orelse null;
},
.FnProto => {
const func = node.cast(ast.Node.FnProto).?;
switch (func.return_type) {
.Explicit, .InferErrorSet => |return_type| return resolveTypeOfNode(analysis_ctx, return_type),
}
return node;
},
.Identifier => {
if (getChild(analysis_ctx.tree, &analysis_ctx.tree.root_node.base, analysis_ctx.tree.getNodeSource(node))) |child| {
@ -229,7 +218,15 @@ pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.
const suffix_op = node.cast(ast.Node.SuffixOp).?;
switch (suffix_op.op) {
.Call => {
return resolveTypeOfNode(analysis_ctx, suffix_op.lhs.node);
const func_decl = resolveTypeOfNode(analysis_ctx, suffix_op.lhs.node) orelse return null;
if (func_decl.id == .FnProto) {
const func = node.cast(ast.Node.FnProto).?;
switch (func.return_type) {
.Explicit, .InferErrorSet => |return_type| return resolveTypeOfNode(analysis_ctx, return_type),
}
}
return null;
},
else => {},
}
@ -239,12 +236,14 @@ pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.
switch (infix_op.op) {
.Period => {
std.debug.warn("\n\n\nPeriod\n\n\n", .{});
std.debug.warn("InfixOp file = {}\n{}\n", .{ analysis_ctx.handle.document.uri, analysis_ctx.tree.getNodeSource(&analysis_ctx.tree.root_node.base) });
std.debug.warn("InfixOp full = {}\n", .{analysis_ctx.tree.getNodeSource(node)});
// Save the child string from this tree since the tree may switch when processing
// an import lhs.
var rhs_str = nodeToString(analysis_ctx.tree, infix_op.rhs) orelse return null;
std.debug.warn("InfixOp rhs_str = {}\n", .{rhs_str});
// Use the analysis context temporary arena to store the rhs string.
rhs_str = std.mem.dupe(&analysis_ctx.arena.allocator, u8, rhs_str) catch return null;
std.debug.warn("InfixOp rhs_str = {}\n", .{rhs_str});
const left = resolveTypeOfNode(analysis_ctx, infix_op.lhs) orelse return null;
std.debug.warn("InfixOp left = {}\n", .{left});
const child = getChild(analysis_ctx.tree, left, rhs_str) orelse return null;
@ -272,6 +271,7 @@ pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.
const builtin_call = node.cast(ast.Node.BuiltinCall).?;
if (!std.mem.eql(u8, analysis_ctx.tree.tokenSlice(builtin_call.builtin_token), "@import")) return null;
if (builtin_call.params.len > 1) return null;
std.debug.warn("Importing {}\n", .{analysis_ctx.tree.getNodeSource(node)});
const import_param = builtin_call.params.at(0).*;
if (import_param.id != .StringLiteral) return null;

25
src/document_store.zig
View File

@ -44,8 +44,8 @@ pub fn init(self: *DocumentStore, allocator: *std.mem.Allocator, zig_lib_path: ?
errdefer self.handles.deinit();
if (zig_lib_path) |zpath| {
const std_path = std.fs.path.resolve(allocator, &[_][]const u8 {
zpath, "./std/std.zig"
const std_path = std.fs.path.resolve(allocator, &[_][]const u8{
zpath, "./std/std.zig",
}) catch |err| block: {
std.debug.warn("Failed to resolve zig std library path, error: {}\n", .{err});
self.std_uri = null;
@ -207,11 +207,11 @@ pub fn applyChanges(self: *DocumentStore, handle: *Handle, content_changes: std.
if (change.Object.getValue("range")) |range| {
const start_pos = types.Position{
.line = range.Object.getValue("start").?.Object.getValue("line").?.Integer,
.character = range.Object.getValue("start").?.Object.getValue("character").?.Integer
.character = range.Object.getValue("start").?.Object.getValue("character").?.Integer,
};
const end_pos = types.Position{
.line = range.Object.getValue("end").?.Object.getValue("line").?.Integer,
.character = range.Object.getValue("end").?.Object.getValue("character").?.Integer
.character = range.Object.getValue("end").?.Object.getValue("character").?.Integer,
};
const change_text = change.Object.getValue("text").?.String;
@ -232,12 +232,12 @@ pub fn applyChanges(self: *DocumentStore, handle: *Handle, content_changes: std.
// The first part of the string, [0 .. start_index] need not be changed.
// We then copy the last part of the string, [end_index ..] to its
// new position, [start_index + change_len .. ]
std.mem.copy(u8, document.mem[start_index + change_text.len..][0 .. old_len - end_index], document.mem[end_index .. old_len]);
std.mem.copy(u8, document.mem[start_index + change_text.len ..][0 .. old_len - end_index], document.mem[end_index..old_len]);
// Finally, we copy the changes over.
std.mem.copy(u8, document.mem[start_index..][0 .. change_text.len], change_text);
std.mem.copy(u8, document.mem[start_index..][0..change_text.len], change_text);
// Reset the text substring.
document.text = document.mem[0 .. new_len];
document.text = document.mem[0..new_len];
} else {
const change_text = change.Object.getValue("text").?.String;
const old_len = document.text.len;
@ -248,8 +248,8 @@ pub fn applyChanges(self: *DocumentStore, handle: *Handle, content_changes: std.
document.mem = try self.allocator.realloc(document.mem, realloc_len);
}
std.mem.copy(u8, document.mem[0 .. change_text.len], change_text);
document.text = document.mem[0 .. change_text.len];
std.mem.copy(u8, document.mem[0..change_text.len], change_text);
document.text = document.mem[0..change_text.len];
}
}
@ -258,8 +258,7 @@ pub fn applyChanges(self: *DocumentStore, handle: *Handle, content_changes: std.
fn uriFromImportStr(store: *DocumentStore, handle: *Handle, import_str: []const u8) !?[]const u8 {
return if (std.mem.eql(u8, import_str, "std"))
if (store.std_uri) |std_root_uri| try std.mem.dupe(store.allocator, u8, std_root_uri)
else {
if (store.std_uri) |std_root_uri| try std.mem.dupe(store.allocator, u8, std_root_uri) else {
std.debug.warn("Cannot resolve std library import, path is null.\n", .{});
return null;
}
@ -269,8 +268,8 @@ fn uriFromImportStr(store: *DocumentStore, handle: *Handle, import_str: []const
defer store.allocator.free(path);
const dir_path = std.fs.path.dirname(path) orelse "";
const import_path = try std.fs.path.resolve(store.allocator, &[_][]const u8 {
dir_path, import_str
const import_path = try std.fs.path.resolve(store.allocator, &[_][]const u8{
dir_path, import_str,
});
defer store.allocator.free(import_path);

26
src/main.zig
View File

@ -285,12 +285,17 @@ fn completeFieldAccess(id: i64, handle: *DocumentStore.Handle, position: types.P
var tokenizer = std.zig.Tokenizer.init(line[line_start_idx..]);
if (analysis.getFieldAccessTypeNode(&analysis_ctx, &tokenizer)) |node| {
const initial_document = try std.mem.dupe(&arena.allocator, u8, analysis_ctx.handle.document.uri);
var index: usize = 0;
while (node.iterate(index)) |child_node| {
if (analysis.isNodePublic(analysis_ctx.tree, child_node)) {
std.debug.warn("Document uri = {}\nInitial uri = {}\n", .{ analysis_ctx.handle.document.uri, initial_document });
std.debug.assert(std.mem.eql(u8, initial_document, analysis_ctx.handle.document.uri));
if (analysis.isNodePublic(analysis_ctx.tree, child_node)) {
// TODO: Not great to allocate it again and again inside a loop
var node_analysis_ctx = (try document_store.analysisContext(handle, &arena)) orelse {
// Creating a new context, so that we don't destroy the tree that is iterated above when resolving imports
std.debug.warn("\ncompleteFieldAccess calling resolveTypeOfNode for {}\nIn document {}\n", .{ analysis_ctx.tree.getNodeSource(child_node), analysis_ctx.handle.document.uri });
var node_analysis_ctx = (try document_store.analysisContext(analysis_ctx.handle, &arena)) orelse {
return send(types.Response{
.id = .{ .Integer = id },
.result = .{
@ -303,9 +308,22 @@ fn completeFieldAccess(id: i64, handle: *DocumentStore.Handle, position: types.P
};
defer node_analysis_ctx.deinit();
const resolved_node = analysis.resolveTypeOfNode(&node_analysis_ctx, child_node) orelse child_node;
const resolved_node = analysis.resolveTypeOfNode(&node_analysis_ctx, child_node);
if (resolved_node) |n| {
std.debug.warn("completeFieldAccess resolveTypeOfNode result = {}\n", .{resolved_node});
}
if (try nodeToCompletion(&arena.allocator, node_analysis_ctx.tree, resolved_node, config)) |completion| {
const completion_node: struct { node: *std.zig.ast.Node, context: *DocumentStore.AnalysisContext } = blk: {
if (resolved_node) |n| {
break :blk .{ .node = n, .context = &node_analysis_ctx };
}
break :blk .{ .node = child_node, .context = &analysis_ctx };
};
std.debug.warn("completeFieldAccess resolved_node = {}\n", .{completion_node.context.tree.getNodeSource(completion_node.node)});
if (try nodeToCompletion(&arena.allocator, completion_node.context.tree, completion_node.node, config)) |completion| {
try completions.append(completion);
}
}