Fix spelling errors (2)

src/array.cr

@@ -243,7 +243,7 @@ class Array(T)
   #
   # See also: `#uniq`.
   def |(other : Array(U)) forall U
-    # Heurisitic: if the combined size is small we just do a linear scan
+    # Heuristic: if the combined size is small we just do a linear scan
     # instead of using a Hash for lookup.
     if size + other.size <= SMALL_ARRAY_SIZE
       ary = Array(T | U).new
@@ -300,7 +300,7 @@ class Array(T)
   # [1, 2, 3] - [2, 1] # => [3]
   # ```
   def -(other : Array(U)) forall U
-    # Heurisitic: if any of the arrays is small we just do a linear scan
+    # Heuristic: if any of the arrays is small we just do a linear scan
     # instead of using a Hash for lookup.
     if size <= SMALL_ARRAY_SIZE || other.size <= SMALL_ARRAY_SIZE
       ary = Array(T).new

src/compiler/crystal/codegen/ast.cr

@@ -111,7 +111,7 @@ module Crystal
     end
 
     private def compute_c_calling_convention
-      # One case where this is not true if for LLVM instrinsics.
+      # One case where this is not true if for LLVM intrinsics.
       # For example overflow intrinsics return a tuple, like {i32, i1}:
       # in C ABI that is represented as i64, but we need to keep the original
       # type here, respecting LLVM types, not the C ABI.

src/compiler/crystal/codegen/call.cr

@@ -67,7 +67,7 @@ class Crystal::CodeGenVisitor
     obj = node.obj
 
     # Always accept obj: even if it's not passed as self this might
-    # involve intermerdiate calls with side effects.
+    # involve intermediate calls with side effects.
     if obj
       @needs_value = true
       accept obj

src/compiler/crystal/codegen/debug.cr

@@ -393,7 +393,7 @@ module Crystal
         when LLVM::Value    then value
         when LLVM::Function then value.to_value
         when Nil            then LLVM::Value.null
-        else                     raise "Unsuported value type: #{value.class}"
+        else                     raise "Unsupported value type: #{value.class}"
         end
       end
       llvm_context.md_node(values)

src/compiler/crystal/codegen/llvm_typer.cr

@@ -462,15 +462,15 @@ module Crystal
     end
 
     # Copy existing LLVM types, possibly from another context,
-    # into this typer's context.
+    # into this type's context.
     def copy_types(types : Array(LLVM::Type))
       types.map do |type|
         copy_type(type).as(LLVM::Type)
       end
     end
 
     # Copy an existing LLVM type, possibly from another context,
-    # into this typer's context.
+    # into this type's context.
     def copy_type(type : LLVM::Type)
       case type.kind
       when .void?

src/compiler/crystal/compiler.cr

@@ -69,7 +69,7 @@ module Crystal
     property? no_cleanup = false
 
     # If `true`, no executable will be generated after compilation
-    # (useful to type-check a prorgam)
+    # (useful to type-check a program)
     property? no_codegen = false
 
     # Maximum number of LLVM modules that are compiled in parallel

src/compiler/crystal/formatter.cr

@@ -4,7 +4,7 @@
 # require "compiler/crystal/formatter"
 # ```
 #
-# and use Crystal's formatter programatically, without
+# and use Crystal's formatter programmatically, without
 # requiring all the semantic and codegen code.
 
 require "./tools/formatter"

src/compiler/crystal/program.cr

@@ -12,7 +12,7 @@ module Crystal
   # around in every step of a compilation to record and query this information.
   #
   # In a way, a Program is an alternative implementation to having global variables
-  # for all of this data, but modelled this way one can easily test and exercise
+  # for all of this data, but modeled this way one can easily test and exercise
   # programs because each one has its own definition of the types created,
   # methods instantiated, etc.
   #

src/compiler/crystal/semantic/ast.cr

@@ -776,7 +776,7 @@ module Crystal
     end
   end
 
-  # Ficticious node to mean a location in code shouldn't be reached.
+  # Fictitious node to mean a location in code shouldn't be reached.
   # This is used in the implicit `else` branch of a case.
   class Unreachable < ASTNode
     def clone_without_location

src/compiler/crystal/semantic/call.cr

@@ -771,7 +771,7 @@ class Crystal::Call
       output = block_arg_restriction.output
     elsif block_arg_restriction
       # Otherwise, the block spec could be something like &block : Foo, and that
-      # is valid too only if Foo is an alias/typedef that referes to a FunctionType
+      # is valid too only if Foo is an alias/typedef that refers to a FunctionType
       block_arg_restriction_type = lookup_node_type(match.context, block_arg_restriction).remove_typedef
       unless block_arg_restriction_type.is_a?(ProcInstanceType)
         block_arg_restriction.raise "expected block type to be a function type, not #{block_arg_restriction_type}"

src/compiler/crystal/semantic/cleanup_transformer.cr

@@ -393,7 +393,7 @@ module Crystal
         end
       end
 
-      # Check if the block has its type freezed and it doesn't match the current type
+      # Check if the block has its type frozen and it doesn't match the current type
       if block && (freeze_type = block.freeze_type) && (block_type = block.type?)
         unless block_type.implements?(freeze_type)
           freeze_type = freeze_type.base_type if freeze_type.is_a?(VirtualType)

src/compiler/crystal/semantic/method_lookup.cr

@@ -301,7 +301,7 @@ module Crystal
             matched_named_arg_types ||= [] of NamedArgumentType
             matched_named_arg_types << NamedArgumentType.new(named_arg.name, match_arg_type)
           else
-            # If there's a double splat it's ok, the named arg will be put there
+            # If there's a double splat it's OK, the named arg will be put there
             if a_def.double_splat
               match_arg_type = named_arg.type
 

src/compiler/crystal/semantic/new.cr

@@ -14,7 +14,7 @@ module Crystal
         define_default_new(file_module)
       end
 
-      # Once we are done with the expansions we mark `initialze` methods
+      # Once we are done with the expansions we mark `initialize` methods
       # without an explicit visibility as `protected`.
       new_expansions.each do |expansion|
         original = expansion[:original]

src/compiler/crystal/semantic/type_guess_visitor.cr

@@ -78,7 +78,7 @@ module Crystal
     end
 
     def visit(node : Var)
-      # Check for an argument that mathces this var, and see
+      # Check for an argument that matches this var, and see
       # if it has a default value. If so, we do a `self` check
       # to make sure `self` isn't used
       if (arg = args_hash[node.name]?) && (default_value = arg.default_value)

src/compiler/crystal/syntax/ast.cr

@@ -45,7 +45,7 @@ module Crystal
     end
 
     # Returns the doc comment attached to this node. Not every node
-    # supports having doc domments, so by default this returns `nil`.
+    # supports having doc comments, so by default this returns `nil`.
     def doc
     end
 
@@ -97,7 +97,7 @@ module Crystal
     end
 
     # It yields `nil` always.
-    # (It is overrided by `Expressions` to implement `#single_expression`.)
+    # (It is overriden by `Expressions` to implement `#single_expression`.)
     def single_expression?
       nil
     end

src/compiler/crystal/syntax/parser.cr

@@ -1629,7 +1629,7 @@ module Crystal
       end
       skip_statement_end
 
-      body = push_visbility { parse_expressions }
+      body = push_visibility { parse_expressions }
 
       end_location = token_end_location
       check_ident :end
@@ -1703,7 +1703,7 @@ module Crystal
       type_vars, splat_index = parse_type_vars
       skip_statement_end
 
-      body = push_visbility { parse_expressions }
+      body = push_visibility { parse_expressions }
 
       end_location = token_end_location
       check_ident :end
@@ -5358,7 +5358,7 @@ module Crystal
       name_location = @token.location
       next_token_skip_statement_end
 
-      body = push_visbility { parse_lib_body_expressions }
+      body = push_visibility { parse_lib_body_expressions }
 
       check_ident :end
       end_location = token_end_location
@@ -6041,7 +6041,7 @@ module Crystal
       name == "self" || @def_vars.last.includes?(name)
     end
 
-    def push_visbility
+    def push_visibility
       old_visibility = @visibility
       @visibility = nil
       value = yield

src/compiler/crystal/tools/formatter.cr

@@ -2052,7 +2052,7 @@ module Crystal
 
     # If we are formatting macro contents, if there are nested macro
     # control structures they are definitely escaped with `\`,
-    # because otherwise we wouln't be able to format the contents.
+    # because otherwise we wouldn't be able to format the contents.
     # So here we append those slashes. In theory the nesting can be
     # very deep but it's usually just one level.
     private def write_macro_slashes

src/compiler/crystal/types.cr

@@ -242,7 +242,7 @@ module Crystal
     # Returns the type that owns class vars for a type.
     #
     # This method returns self, but subclasses might override.
-    # For example, a metaclass's class_var_owner is the instance type.
+    # For example, a metaclass' class_var_owner is the instance type.
     def class_var_owner
       self
     end
@@ -2059,7 +2059,7 @@ module Crystal
     getter(metaclass) { GenericClassInstanceMetaclassType.new(self.program, self) }
   end
 
-  # An instantiated genric module, like Enumerable(Int32).
+  # An instantiated generic module, like Enumerable(Int32).
   class GenericModuleInstanceType < GenericInstanceType
     include InstanceVarContainer
     include InstanceVarInitializerContainer
@@ -2668,7 +2668,7 @@ module Crystal
 
   # An instantiated enum type.
   #
-  # TODO: right now this is not properly modelled. Ideally there
+  # TODO: right now this is not properly modeled. Ideally there
   # should be EnumType and EnumInstanceType, where EnumType would
   # be `Enum(T)` and given:
   #

src/csv.cr

@@ -20,7 +20,7 @@
 # A CSV instance holds a cursor to the current row in the CSV. The cursor
 # is advanced by invoking `#next`, which returns `true` if a next row was found,
 # and `false` otherwise. A first call to `#next` is required to position the
-# csv parser in the first row.
+# CSV parser in the first row.
 #
 # Once positioned in a row, values can be obtained with the several `#[]` methods,
 # which can accept a header name, column position, or header name pattern as a `Regex`.

src/fiber/context/aarch64.cr

@@ -58,7 +58,7 @@ class Fiber
       ldr     x19, [$1, #0]         // sp = new_context.stack_top (x19)
       mov     sp, x19
 
-      ldp     x0,  x1,  [sp, #20*8] // pop 1st argument (+ alignement)
+      ldp     x0,  x1,  [sp, #20*8] // pop 1st argument (+ alignment)
       ldp     x20, x19, [sp, #18*8]
       ldp     x22, x21, [sp, #16*8]
       ldp     x24, x23, [sp, #14*8]

src/hash.cr

@@ -662,14 +662,14 @@ class Hash(K, V)
   end
 
   # Initializes `@entries` for a dup copy.
-  # Here we only need tu duplicate the buffer.
+  # Here we only need to duplicate the buffer.
   private def initialize_dup_entries(other)
     return if other.@entries.null?
 
     @entries = malloc_entries(other.entries_capacity)
 
     # Note that we only need to copy `entries_size` which
-    # are the effectives entries in use.
+    # are the effective entries in use.
     @entries.copy_from(other.@entries, other.entries_size)
   end
 

src/log/metadata.cr

@@ -23,7 +23,7 @@ class Log::Metadata
   # How many entries are potentially overriden from parent (ie: initial entries.size)
   @overriden_size = uninitialized Int32
   # How many entries are stored from @first.
-  # Initially are @overriden_size, the one explictly overriden in entries argument.
+  # Initially are @overriden_size, the one explicitly overriden in entries argument.
   # When the metadata is defragmented @size will be increased up to
   # the actual number of entries resulting from merging the parent
   @size = uninitialized Int32

src/mime/media_type.cr

@@ -275,7 +275,7 @@ module MIME
             end
           end
 
-          # TODO: Using a different datastructure than `Hash` for storing
+          # TODO: Using a different data structure than `Hash` for storing
           # continuation sections could improve performance.
           normalized_key = "#{base_key}*#{section}"
           continuation_map = continuation[base_key]

src/number.cr

@@ -193,7 +193,7 @@ struct Number
     self > other ? 1 : (self < other ? -1 : 0)
   end
 
-  # Keeps *digits* significants digits of this number in the given *base*.
+  # Keeps *digits* significant digits of this number in the given *base*.
   #
   # ```
   # 1234.567.significant(1) # => 1000

src/process.cr

@@ -190,13 +190,13 @@ class Process
     @process_info.pid.to_i64
   end
 
-  # A pipe to this process's input. Raises if a pipe wasn't asked when creating the process.
+  # A pipe to this process' input. Raises if a pipe wasn't asked when creating the process.
   getter! input : IO::FileDescriptor
 
-  # A pipe to this process's output. Raises if a pipe wasn't asked when creating the process.
+  # A pipe to this process' output. Raises if a pipe wasn't asked when creating the process.
   getter! output : IO::FileDescriptor
 
-  # A pipe to this process's error. Raises if a pipe wasn't asked when creating the process.
+  # A pipe to this process' error. Raises if a pipe wasn't asked when creating the process.
   getter! error : IO::FileDescriptor
 
   @process_info : Crystal::System::Process

src/signal.cr

@@ -229,7 +229,7 @@ module Crystal::Signal
   # signals that would be sent to the parent process through the signal
   # pipe.
   #
-  # We keep a signal set to because accessing @@handlers ins't thread safe —a
+  # We keep a signal set to because accessing @@handlers isn't thread safe —a
   # thread could be mutating the hash while another one forked. This allows to
   # only reset a few signals (fast) rather than all (very slow).
   #

src/string.cr

@@ -3282,7 +3282,7 @@ class String
     {pre, mid, post}
   end
 
-  # Returns the index of the _first_ ocurrence of *byte* in the string, or `nil` if not present.
+  # Returns the index of the _first_ occurrence of *byte* in the string, or `nil` if not present.
   # If *offset* is present, it defines the position to start the search.
   #
   # Negative *offset* can be used to start the search from the end of the string.
@@ -4152,7 +4152,7 @@ class String
     right_padding.times { io << char }
   end
 
-  # Adds instances of *char* to left ond right of the string until it is at least size of *len*,
+  # Adds instances of *char* to left and right of the string until it is at least size of *len*,
   # then appends the result to the given IO.
   #
   # ```

src/string/utf16.cr

@@ -137,7 +137,7 @@ class String
       elsif 0xd800 <= byte < 0xdc00 &&
             (i + 1) < slice.size &&
             0xdc00 <= slice[i + 1] <= 0xdfff
-        # Surrougate pair
+        # Surrogate pair
         codepoint = ((byte - 0xd800) << 10) + (slice[i + 1] - 0xdc00) + 0x10000
         i += 1
       else
@@ -162,7 +162,7 @@ class String
         codepoint = byte
       elsif 0xd800 <= byte < 0xdc00 &&
             0xdc00 <= (pointer + 1).value <= 0xdfff
-        # Surrougate pair
+        # Surrogate pair
         pointer = pointer + 1
         codepoint = ((byte - 0xd800) << 10) + (pointer.value - 0xdc00) + 0x10000
       else

src/struct.cr

@@ -45,7 +45,7 @@
 struct Struct
   # Returns `true` if this struct is equal to *other*.
   #
-  # Both structs's instance vars are compared to each other. Thus, two
+  # Both structs' instance vars are compared to each other. Thus, two
   # structs are considered equal if each of their instance variables are
   # equal. Subclasses should override this method to provide specific
   # equality semantics.

src/time/location.cr

@@ -94,7 +94,7 @@ class Time::Location
     # Raises `InvalidTimezoneOffsetError` if *seconds* is outside the supported
     # value range `-86_400..86_400` seconds (`-24:00` to `+24:00`).
     def initialize(@name : String?, @offset : Int32, @dst : Bool)
-      # Maximium offsets of IANA time zone database are -12:00 and +14:00.
+      # Maximum offsets of IANA time zone database are -12:00 and +14:00.
       # +/-24 hours allows a generous padding for unexpected offsets.
       # TODO: Maybe reduce to Int16 (+/- 18 hours).
       raise InvalidTimezoneOffsetError.new(offset) if offset >= SECONDS_PER_DAY || offset <= -SECONDS_PER_DAY
@@ -239,7 +239,7 @@ class Time::Location
   # `"UTC"` and empty string (`""`) return `Location::UTC`, and
   # `"Local"` returns `Location.local`.
   #
-  # The implementation uses a list of system-specifc paths to look for a time
+  # The implementation uses a list of system-specific paths to look for a time
   # zone database.
   # The first time zone database entry matching the given name that is
   # successfully loaded and parsed is returned.

src/time/span.cr

@@ -95,7 +95,7 @@ struct Time::Span
     @nanoseconds = nanoseconds.to_i32
   end
 
-  # Creates a new `Time::Span` from the *nanosenconds* given
+  # Creates a new `Time::Span` from the *nanoseconds* given
   #
   # Nanoseconds get normalized in the range of `0...1_000_000_000`,
   # the nanosecond overflow gets added as seconds.