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author | Lukas Larsson <[email protected]> | 2011-05-18 16:21:34 +0200 |
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committer | Lukas Larsson <[email protected]> | 2011-05-18 16:21:34 +0200 |
commit | 15426ac367eed736c165a5bdbb1c051a87944f68 (patch) | |
tree | fcabce7847168a8416600fe35f94a411a5f73d6e /lib/stdlib/doc/src/erl_eval.xml | |
parent | 4cd0717b717803ce8f03a12de4bf89f452ed1df7 (diff) | |
parent | f44bbb331fb517e989d4d906b7f63ec110bbbc18 (diff) | |
download | otp-15426ac367eed736c165a5bdbb1c051a87944f68.tar.gz otp-15426ac367eed736c165a5bdbb1c051a87944f68.tar.bz2 otp-15426ac367eed736c165a5bdbb1c051a87944f68.zip |
Merge branch 'dev' of super:otp into dev
* 'dev' of super:otp: (166 commits)
Corrected documentation error and added examples to Users Guide
In TLS 1.1, failure to properly close a connection no longer requires that a session not be resumed. This is a change from TLS 1.0 to conform with widespread implementation practice. Erlang ssl will now in TLS 1.0 conform to the widespread implementation practice instead of the specification to avoid performance issues.
Add escript to bootstrap/bin
Remove unused variable warning in inet_res
Remove unused variable in epmd_port
Remove compiler warnings in inet_drv
Add SASL test suite
Allow same module name in multiple applications if explicitely excluded
Fix bugs concerning the option report_missing_types
Fix default encoding in SAX parser.
re: remove gratuitous "it " in manpage
Spelling in (backward *compatibility*) comment.
Improve erl_docgen's support for Dialyzer specs and types
dialyzer warning on mnesia_tm
Add documentation text about majority checking
add mnesia_majority_test suite
where_to_wlock optimization + change_table_majority/2
bug in mnesia_tm:needs_majority/2
optimize sticky_lock maj. check
check majority for sticky locks
...
Diffstat (limited to 'lib/stdlib/doc/src/erl_eval.xml')
-rw-r--r-- | lib/stdlib/doc/src/erl_eval.xml | 153 |
1 files changed, 102 insertions, 51 deletions
diff --git a/lib/stdlib/doc/src/erl_eval.xml b/lib/stdlib/doc/src/erl_eval.xml index 62af23c5eb..c95494bf25 100644 --- a/lib/stdlib/doc/src/erl_eval.xml +++ b/lib/stdlib/doc/src/erl_eval.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2009</year> + <year>1996</year><year>2011</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -36,63 +36,108 @@ <description> <p>This module provides an interpreter for Erlang expressions. The expressions are in the abstract syntax as returned by - <c>erl_parse</c>, the Erlang parser, or a call to - <c>io:parse_erl_exprs/2</c>.</p> + <seealso marker="erl_parse"><c>erl_parse</c></seealso>, + the Erlang parser, or <seealso marker="io"> + <c>io</c></seealso>.</p> </description> + <datatypes> + <datatype> + <name name="bindings"/> + </datatype> + <datatype> + <name name="binding_struct"/> + <desc>A binding structure.</desc> + </datatype> + <datatype> + <name name="expression"/> + </datatype> + <datatype> + <name name="expressions"/> + <desc><p>As returned by <seealso marker="erl_parse#parse_exprs/1"> + <c>erl_parse:parse_exprs/1</c></seealso> or + <seealso marker="io#parse_erl_exprs/2"> + <c>io:parse_erl_exprs/2</c></seealso>.</p></desc> + </datatype> + <datatype> + <name name="expression_list"/> + </datatype> + <datatype> + <name name="func_spec"/> + </datatype> + <datatype> + <name name="lfun_eval_handler"/> + </datatype> + <datatype> + <name name="lfun_value_handler"/> + </datatype> + <datatype> + <name name="local_function_handler"/> + <desc><p>Further described + <seealso marker="#local_function_handler">below.</seealso></p> + </desc> + </datatype> + <datatype> + <name name="name"/> + </datatype> + <datatype> + <name name="nlfun_handler"/> + </datatype> + <datatype> + <name name="non_local_function_handler"/> + <desc><p>Further described + <seealso marker="#non_local_function_handler">below.</seealso></p> + </desc> + </datatype> + <datatype> + <name name="value"/> + </datatype> + </datatypes> <funcs> <func> - <name>exprs(Expressions, Bindings) -> {value, Value, NewBindings}</name> - <name>exprs(Expressions, Bindings, LocalFunctionHandler) -> {value, Value, NewBindings}</name> - <name>exprs(Expressions, Bindings, LocalFunctionHandler, NonlocalFunctionHandler) -> {value, Value, NewBindings}</name> + <name name="exprs" arity="2"/> + <name name="exprs" arity="3"/> + <name name="exprs" arity="4"/> <fsummary>Evaluate expressions</fsummary> - <type> - <v>Expressions = as returned by erl_parse or io:parse_erl_exprs/2</v> - <v>Bindings = as returned by bindings/1</v> - <v>LocalFunctionHandler = {value, Func} | {eval, Func} | none</v> - <v>NonlocalFunctionHandler = {value, Func} | none</v> - </type> <desc> - <p>Evaluates <c>Expressions</c> with the set of bindings - <c>Bindings</c>, where <c>Expressions</c> is a sequence of + <p>Evaluates <c><anno>Expressions</anno></c> with the set of bindings + <c><anno>Bindings</anno></c>, where <c><anno>Expressions</anno></c> + is a sequence of expressions (in abstract syntax) of a type which may be - returned by <c>io:parse_erl_exprs/2</c>. See below for an + returned by <seealso marker="io#parse_erl_exprs/2"> + <c>io:parse_erl_exprs/2</c></seealso>. See below for an explanation of how and when to use the arguments - <c>LocalFunctionHandler</c> and <c>NonlocalFunctionHandler</c>. + <c><anno>LocalFunctionHandler</anno></c> and + <c><anno>NonLocalFunctionHandler</anno></c>. </p> - <p>Returns <c>{value, Value, NewBindings}</c></p> + <p>Returns <c>{value, <anno>Value</anno>, <anno>NewBindings</anno>}</c> + </p> </desc> </func> <func> - <name>expr(Expression, Bindings) -> { value, Value, NewBindings }</name> - <name>expr(Expression, Bindings, LocalFunctionHandler) -> { value, Value, NewBindings }</name> - <name>expr(Expression, Bindings, LocalFunctionHandler, NonlocalFunctionHandler) -> { value, Value, NewBindings }</name> - <name>expr(Expression, Bindings, LocalFunctionHandler, NonlocalFunctionHandler, ReturnFormat) -> { value, Value, NewBindings } | Value</name> + <name name="expr" arity="2"/> + <name name="expr" arity="3"/> + <name name="expr" arity="4"/> + <name name="expr" arity="5"/> <fsummary>Evaluate expression</fsummary> - <type> - <v>Expression = as returned by io:parse_erl_form/2, for example</v> - <v>Bindings = as returned by bindings/1</v> - <v>LocalFunctionHandler = {value, Func} | {eval, Func} | none</v> - <v>NonlocalFunctionHandler = {value, Func} | none</v> - <v>ReturnFormat = value | none</v> - </type> <desc> - <p>Evaluates <c>Expression</c> with the set of bindings - <c>Bindings</c>. <c>Expression</c> is an expression (in - abstract syntax) of a type which may be returned by - <c>io:parse_erl_form/2</c>. See below for an explanation of + <p>Evaluates <c><anno>Expression</anno></c> with the set of bindings + <c><anno>Bindings</anno></c>. <c><anno>Expression</anno></c> + is an expression in + abstract syntax. See below for an explanation of how and when to use the arguments - <c>LocalFunctionHandler</c> and - <c>NonlocalFunctionHandler</c>. + <c><anno>LocalFunctionHandler</anno></c> and + <c><anno>NonLocalFunctionHandler</anno></c>. </p> - <p>Returns <c>{value, Value, NewBindings}</c> by default. But - if the <c>ReturnFormat</c> is <c>value</c> only the <c>Value</c> - is returned.</p> + <p>Returns <c>{value, <anno>Value</anno>, + <anno>NewBindings</anno>}</c> by default. But if the + <c><anno>ReturnFormat</anno></c> is <c>value</c> only + the <c><anno>Value</anno></c> is returned.</p> </desc> </func> <func> - <name>expr_list(ExpressionList, Bindings) -> {ValueList, NewBindings}</name> - <name>expr_list(ExpressionList, Bindings, LocalFunctionHandler) -> {ValueList, NewBindings}</name> - <name>expr_list(ExpressionList, Bindings, LocalFunctionHandler, NonlocalFunctionHandler) -> {ValueList, NewBindings}</name> + <name name="expr_list" arity="2"/> + <name name="expr_list" arity="3"/> + <name name="expr_list" arity="4"/> <fsummary>Evaluate a list of expressions</fsummary> <desc> <p>Evaluates a list of expressions in parallel, using the same @@ -100,18 +145,19 @@ merge the bindings returned from each evaluation. This function is useful in the <c>LocalFunctionHandler</c>. See below. </p> - <p>Returns <c>{ValueList, NewBindings}</c>.</p> + <p>Returns <c>{<anno>ValueList</anno>, <anno>NewBindings</anno>}</c>. + </p> </desc> </func> <func> - <name>new_bindings() -> BindingStruct</name> + <name name="new_bindings" arity="0"/> <fsummary>Return a bindings structure</fsummary> <desc> <p>Returns an empty binding structure.</p> </desc> </func> <func> - <name>bindings(BindingStruct) -> Bindings</name> + <name name="bindings" arity="1"/> <fsummary>Return bindings</fsummary> <desc> <p>Returns the list of bindings contained in the binding @@ -119,25 +165,28 @@ </desc> </func> <func> - <name>binding(Name, BindingStruct) -> Binding</name> + <name name="binding" arity="2"/> <fsummary>Return bindings</fsummary> <desc> - <p>Returns the binding of <c>Name</c> in <c>BindingStruct</c>.</p> + <p>Returns the binding of <c><anno>Name</anno></c> + in <c><anno>BindingStruct</anno></c>.</p> </desc> </func> <func> - <name>add_binding(Name, Value, Bindings) -> BindingStruct</name> + <name name="add_binding" arity="3"/> <fsummary>Add a binding</fsummary> <desc> - <p>Adds the binding <c>Name = Value</c> to <c>Bindings</c>. + <p>Adds the binding <c><anno>Name</anno> = <anno>Value</anno></c> + to <c><anno>BindingStruct</anno></c>. Returns an updated binding structure.</p> </desc> </func> <func> - <name>del_binding(Name, Bindings) -> BindingStruct</name> + <name name="del_binding" arity="2"/> <fsummary>Delete a binding</fsummary> <desc> - <p>Removes the binding of <c>Name</c> in <c>Bindings</c>. + <p>Removes the binding of <c><anno>Name</anno></c> + in <c><anno>BindingStruct</anno></c>. Returns an updated binding structure.</p> </desc> </func> @@ -145,7 +194,8 @@ <section> <title>Local Function Handler</title> - <p>During evaluation of a function, no calls can be made to local + <p><marker id="local_function_handler"></marker> + During evaluation of a function, no calls can be made to local functions. An undefined function error would be generated. However, the optional argument <c>LocalFunctionHandler</c> may be used to define a function @@ -191,7 +241,8 @@ Func(Name, Arguments, Bindings) </code> <section> <title>Non-local Function Handler</title> - <p>The optional argument <c>NonlocalFunctionHandler</c> may be + <p><marker id="non_local_function_handler"></marker> + The optional argument <c>NonlocalFunctionHandler</c> may be used to define a function which is called in the following cases: a functional object (fun) is called; a built-in function is called; a function is called using the M:F syntax, where M |